PRESIDENT DILIP V. IESTE, M.D.PRESIDENT-ELECT JEFFREY A. LIEBERMAN, M.D.TREASURER DAVID FASSLER, M.D.SECRETARY ROGER PEELE, M.D.SPEAKER R. SCOTT BENSON, MD.SPEAKER-ELECT MELINDA L. YOUNG, MD.Board of TrusteesJEFFREY AKAKA, MD.CAROL A. BERNSTEIN, M.D.BRIAN CROWLEY, MD.ANITA S. EVERETT, MD.JEFFREY GELLER, MD, MPH.Mac DAVID GBAFF, MD.JUDITH F. KASHTAN, M.D.MOLLY K. MCVOY, M.D.JAMES E. NlNINGER, MD.JOHN M. OLDHAM, MD.ALAN F. SCHATZBERG, MD.ALIK S. WIDGE, M.D., PHD.ERIK R. VANDERLIP, M.D.,MENTAL DISORDERS,DSM and DSM-5 are trademarks of the American Psychiatric Association. Use of these terms is prohibited without permission of the American Psychiatric Association. ALL RIGHTS RESERVED. Unless authorized in writing by the APA, no part of this book may be reproduced or used in a manner inconsistent with the APA’s copyright. This prohibition applies to unauthorized uses or reproductions in any form, including electronic applications. Correspondence regarding copyright permissions should be directed to DSM Permissions, American Psychiatric Publishing, 1000 Wilson Boulevard, Suite 1825, Arlington, VA 22209- 3901. Manufactured in the United States of America on acid-free paper. Arlington, VA 22209-3901 www.psych.orgThe correct citation for this book is American Psychiatric Association: Diagnostic and Statisti- cal Manual of Mental Disorders, Fifth Edition. Arlington, VA, American Psychiatric Associa- tion, 2013. Library of Congress Cataloging-in-Publication DataDiagnostic and statistical manual of mental disorders : DSM-5. — 5th ed. p. ; cm.Includes index.ISBN 978- 0- 89042 ”554 1 (hardcover: alk. paper) — ISBN 978- 0- 89042-555- 8 (pbk.: alk. paper) I. American Psychiatric Association; 1.1 American Psychiatric Association. DSM—S Task Force. III Title: DSM- 5. IV. Title: DSM- V.[DNLMz 1. Diagnostic and statistical manual of mental disorders. 5th ed. 2. Mental Disorders— classification. 3. Mental Disorders—diagnosis. WM 15] RC455.2.C4 616.89‘075—dc23British Library Cataloguing in Publication Data K C.A CIP record is available from the British Library.Text Design—Tammy I. Cordova H— 5 :5) . C Li DSM-5 Classification ................................... xiiiPreface ............................................... xliIntroduction ............................................ 5Use of the Manual ...................................... 19Cautionary Statement for Forensic Use of DSM-5 ............ 25Neurodevelopmental Disorders ........................... 31Schizophrenia Spectrum and Other Psychotic Disorders ...... 87Bipolar and Related Disorders ........................... 123Depressive Disorders .................................. 155Anxiety Disorders ...................................... 189Obsessive-Compulsive and Related Disorders ............. 235Trauma- and Stressor-Related Disorders .................. 265Dissociative Disorders ................................. 291Somatic Symptom and Related Disorders ................. 309Feeding and Eating Disorders ........................... 329Elimination Disorders .................................. 355Sleep-Wake Disorders .................................. 361Sexual Dysfunctions ................................... 423Gender Dysphoria ..................................... 451Disruptive, Impulse-Control, and Conduct Disorders ........ 461Substance-Related and Addictive Disorders ............... 481Neurocognitive Disorders ............................... 591Personality Disorders .................................. 645Paraphilic Disorders ................................... 685Other Mental Disorders ................................ 707 and Other Adverse Effects of Medication ................ 709 Other Conditions That May Be a Focus of Clinical Attention . .715 Assessment Measures ................................. 733Cultural Formulation ................................... 749Alternative DSM-5 Model for Personality Disorders ......... 761Conditions for Further Study ............................ 783Highlights of Changes From DSM-IV to DSM-5 ............. 809Glossary of Technical Terms ............................ 817Glossary of Cultural Concepts of Distress ................. 833Alphabetical Listing of DSM-5 Diagnoses and Codes (ICD-9-CM and lCD-10—CM) ............................ 839 Numerical Listing of DSM-5 Diagnoses and Codes (lCD-9-CM) ......................................... 863 Numerical Listing of DSM-5 Diagnoses and Codes (lCD-10-CM) ........................................ 877 DSM-5 Advisors and Other Contributors .................. 897Index ................................................ 917DAVID J. KUPFER, M.D.DARREL A. REGIER, M.D., M.P.H.William E. Narrow, M.D., M.P.H.,Dan C. Blazer, M.D., Ph.D., M.P.H.Jack D. Burke Jr., M.D., M.P.H.William T. Carpenter Ir., M.D.F. Xavier Castellanos, M.D.Wilson M. Compton, M.D., M.P.E.Joel E. Dimsdale, M.D.Javier I. Escobar, M.D., M.Sc.Ian A. Fawcett, M.D.Bridget F. Grant, Ph.D., PhD. (2009—)Steven E. Hyman, M.D. (2007—2012)Dilip V. Ieste, M.D. (2007—2011)Helena C. Kraemer, PhD.Daniel T. Mamah, M.D., M.P.E.James P. McNulty, A.B., Sc.B.Howard B. Moss, M.D. (2007—2009)Susan K. Schultz, M.D., Text EditorEmily A. Kuhl, Ph.D., APA Text EditorCharles P. O’Brien, M.D., PhD.Roger Peele, M.D.Katharine A. Phillips, M.D.Daniel S. Pine, M.D.Charles F. Reynolds III, M.D.Maritza Rubio-Stipec, Sc.D.David Shaffer, M.D.Andrew E. Skodol II, M.D.Susan E. Swedo, M.D.B. Timothy Walsh, M.D.Philip Wang, M.D., Dr.PH. (2007-2012)William M. Womack, M.D.Kimberly A. Yonkers, M.D.Kenneth J. Zucker, PhD.Norman Sartorius, M.D., Ph.D., ConsultantAPA Division of Research Staff on DSM-5Darrel A. Regier, M.D., M.P.H.,Director, Division of ResearchWilliam E. Narrow, M.D., M.P.H.,Emily A. Kuhl, Ph.D., Senior ScienceDiana E. Clarke, Ph.D., M.Sc., ResearchLisa H. Greiner, M.S.S.A., DSM-5 FieldEve K. Moscicki, Sc.B., M.P.H.,Director, Practice Research NetworkS. Janet Kuramoto, PhD. M.H.S.,Senior Scientific Research Associate,Amy Porfiri, M.B.A.Jennifer J. Shupinka, Assistant Director,Seung-Hee Hong, DSM Senior ResearchAnne R. Hiller, DSM Research AssociateAlison S. Beale, DSM Research AssociateSpencer R. Case, DSM Research AssociateJoyce C. West, Ph.D., M.P.P.,Health Policy Research Director, PracticeFarifteh F. Duffy, Ph.D.,Quality Care Research Director, PracticeLisa M. Countis, Field OperationsManager, Practice Research NetworkChristopher M. Reynolds,APA Office of the Medical DirectorJAMES H. SCULLY JR., M.D.Michael B. First, M.D. Maria N. Ward, M.Ed., RHIT, CCS-P DAVID SHAFFER, M.D.F. XAVIER CASTELLANOS, M.D.Paul I. Frick, Ph.D., Text Coordinator Luis Augusto Rohde, M.D., Sc.D. Glorisa Canino, PhD. Rosemary Tannock, PhD.Terrie E. Moffitt, PhD.Joel T. Nigg, PhD.Eric A. Taylor, M.B.Richard Todd, Ph.D., M.D. (d. 2008)Anxiety, Obsessive-Compulsive Spectrum, Posttraumatic,KATHARINE A. PHILLIPS, M.D.Michelle G. Craske, Ph.D., TextI. Gavin Andrews, M.D.Susan M. Bbgels, PhD.Matthew J. Friedman, M.D., PhD.Eric Hollander, M.D. (2007—2009)Roberto Lewis—Fernéndez, M.D., M.T.S.Robert S. Pynoos, M.D., M.P.H.Scott L. Rauch, M.D.H. Blair Simpson, M.D., PhD.David Spiegel, M.D.Dan J. Stein, M.D., PhD.Murray B. Stein, M.D.Robert I. Ursano, M.D.Hans-Ulrich Wittchen, PhD.DANIEL S. PINE, M.D.Ronald E. Dahl, M.D.E. Jane Costello, PhD. (2007—2009)Regina Smith James, M.D.Rachel G. Klein, PhD.James F. Leckman, M.D.Ellen Leibenluft, M.D.Judith H. L. Rapoport, M.D.Charles H. Zeanah, M.D.B. TIMOTHY WALSH, M.D.Stephen A. Wonderlich, Ph.D.,Evelyn Attia, M.D.Anne E. Becker, M.D., Ph.D., Sc.M.Rachel Bryant-Waugh, M.D.Hans W. Hoek, M.D., PhD.Richard E. Kreipe, M.D.Marsha D. Marcus, PhD.James E. Mitchell, M.D.Ruth H. StriegeI-Moore, PhD.G. Terence Wilson, PhD.Barbara E. Wolfe, Ph.D. A.P.R.N.\ JAN A. FAWCETT, M.D.Ellen Frank, Ph.D., Text Coordinator Kenneth S. Kendler, M.D., PhD. Jules Angst, M.D. (2007—2008) (2007—2010)William H. Coryell, M.D. Mario Maj, M.D., PhD.Lori L. Davis, M.D. Husseini K. Manji, M.D. (2007—2008)Raymond J. DePaulo, M.D. Michael R. Phillips, M.D.Sir David Goldberg, M.D. Trisha Suppes, M.D., PhD.James S. Jackson, PhD. Carlos A. Zarate, M.D.DILIP V. JESTE, M.D. (2007—2011)DAN G. BLAZER, M.D., PH.D., M.P.H.RONALD C. PETERSEN, M.D., PHD.Mary Ganguli, M.D., M.P.H., Igor Grant, M.D.Text Coordinator Eric J. Lenze, M.D.Deborah Blacker, M.D., Sc.D. Jane S. Paulsen, PhD.Warachal Faison, M.D. (2007—2008) Perminder S. Sachdev, M.D., PhD.SUSAN E. SWEDO, M.D.Gillian Baird, M.A., M.B., B.Chir., Catherine E. Lord, PhD.Text Coordinator Joseph Piven, M.D.Edwin H. Cook ]1'., M.D. Sally I. Rogers, PhD.Francesca G. Happé, PhD. Sarah J. Spence, M.D., PhD.James C. Harris, M.D. Fred Volkmar, M.D. (2007—2009)Walter E. Kaufmann, M.D. Amy M. Wetherby, PhD.Bryan H. King, M.D. Harry H. Wright, M.D.ANDREW E. SKODOL, M.D.JOHN M. OLDI-IAM, M.D.Robert F. Krueger, Ph.D., Text Lee Anna Clark, PhD.Coordinator W. John Livesley, M.D., PhD. (2007—2012)Renato D. Alarcon, M.D., M.P.H. Leslie C. Morey, PhD.Carl C. Bell, M.D. Larry J. Siever, M.D.Donna S. Bender, PhD. Roel Verheul, PhD. (2008—2012) 1The members of the Personality and Personality Disorders Work Group are responsible for the alternative DSM-S model for personality disorders that is included in Section III. The Section II personality disorders criteria and text (with updating of the text) are retained from DSM-IV—TR. WILLIAM T. CARPENTER JR., M.D.Deanna M. Barch, Ph.D., TextJuan R. Bustillo, M.D.Wolfgang Gaebel, M.D.Raquel E. Gur, M.D., PhD.Stephan H. Heckers, M.D.Dolores Malaspina, M.D., M.S.P.I—I.Michael I. Owen, M.D., PhD.Susan K. Schultz, M.D.Rajiv Tandon, M.D.Ming T. Tsuang, M.D., PhD.Jim van Os, M.D.KENNETH J. ZUCKER, PHD.Lori Brotto, Ph.D., Text CoordinatorIrving M. Binik, PhD.Ray M. Blanchard, PhD.Peggy T. Cohen-Kettenis, PhD.Jack Drescher, M.D.Cynthia A. Graham, PhD.Martin P. 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The essential features of intellectual disability (intellectual developmental disorder) are functioning, in comparison to an individual’s age-, gender-, and socioculturally matched peers (Criterion B). Onset is during the developmental period (Criterion C). The diagnosis of intellectual disability is based on both clinical assessment and standardized testing of intellectual and adaptive functions. Criterion A refers to intellectual functions that involve reasoning, problem solving, planning, abstract thinking, judgment, learning from instruction and experience, and practical understanding. Critical components include verbal comprehension, working memory, perceptual reasoning, quantitative reasoning, abstract thought, and cognitive ef- ficacy. Intellectual functioning is typically measured with individually administered and psychometrically valid, comprehensive, culturally appropriate, psychometrically sound tests of intelligence. Individuals with intellectual disability have scores of approximately two standard deviations or more below the population mean, including a margin for mea— surement error (generally +5 points). On tests with a standard deviation of 15 and a mean of 100, this involves a score of 65—75 (70 1 5). Clinical training and judgment are required to interpret test results and assess intellectual performance. Factors that may affect test scores include practice effects and the ”Flynn effect’ (i.e., overly high scores due to out-of—date test norms). Invalid scores may result from the use of may make an overall IQ score invalid. Instruments must be normed for the individual's so- ciocultural background and native language. Co-occurring disorders that affect communi- cation, language, and / or motor or sensory function may affect test scores. Individual cognitive profiles based on neuropsychological testing are more useful for understanding intellectual abilities than a single IQ score. Such testing may identify areas of relative strengths and weaknesses, an assessment important for academic and vocational planning. IQ test scores are approximations of conceptual functioning but may be insufficient to assess reasoning in real-life situations and mastery of practical tasks. For example, a per- son with an IQ score above 70 may have such severe adaptive behavior problems in social judgment, social understanding, and other areas of adaptive functioning that the person’s actual functioning is comparable to that of individuals with a lower IQ score. Thus, clinical judgment is needed in interpreting the results of IQ tests. Deficits in adaptive functioning (Criterion B) refer to how well a person meets community standards of personal independence and social responsibility, in comparison to others of sim- ilar age and sociocultural background. Adaptive functioning involves adaptive reasoning in three domains: conceptual, social, and practical. The conceptual (academic) domain involves competence in memory, language, reading, writing, math reasoning, acquisition of practical knowledge, problem solving, and judgment in novel situations, among others. The social do- main involves awareness of others’ thoughts, feelings, and experiences; empathy; interper— sonal communication skills; friendship abilities; and social judgment, among others. The practical domain involves learning and self-management across life settings, including personal care, job responsibilities, money management, recreation, self—management of behavior, and school and work task organization, among others. Intellectual capacity, education, motivation, socialization, personality features, vocational opportunity, cultural experience, and coexisting general medical conditions or mental disorders influence adaptive functioning. Adaptive functioning is assessed using both clinical evaluation and individualized, culturally appropriate, psychometrically sound measures. Standardized measures are used with knowledgeable informants (e.g., parent or other family member; teacher; coun- selor; care provider) and the individual to the extent possible. Additional sources of infor- mation include educational, developmental, medical, and mental health evaluations. ical judgment. When standardized testing is difficult or impossible, because of a variety of factors (e.g., sensory impairment, severe problem behavior), the individual may be diag- nosed with unspecified intellectual disability. Adaptive functioning may be difficult to assess in a controlled setting (e.g., prisons, detention centers); if possible, corroborative in- formation reflecting functioning outside those settings should be obtained. Criterion B is met when at least one domain of adaptive functioning—conceptual, so- cial, or practical—is sufficiently impaired that ongoing support is needed in order for the person to perform adequately in one or more life settings at school, at work, at home, or in the community. To meet diagnostic criteria for intellectual disability, the deficits in adap- tive functioning must be directly related to the intellectual impairments described in Cri- terion A. Criterion C, onset during the developmental period, refers to recognition that intellectual and adaptive deficits are present during childhood or adolescence. Intellectual disability is a heterogeneous condition with multiple causes. There may be associated difficulties with social judgment; assessment of risk; self—management of behav- ior, emotions, or interpersonal relationships; or motivation in school or work environments. Lack of communication skills may predispose to disruptive and aggressive behaviors. Gull- ibility is often a feature, involving naiveté in social situations and a tendency for being easily led by others. Gullibility and lack of awareness of risk may result in exploitation by others and possible victimization, fraud, unintentional criminal involvement, false confessions, and risk for physical and sexual abuse. These associated features can be important in crim- inal cases, including Atkins-type hearings involving the death penalty. Individuals with a diagnosis of intellectual disability with co-occurring mental disor- ders are at risk for suicide. They think about suicide, make suicide attempts, and may die from them. Thus, screening for suicidal thoughts is essential in the assessment process. Be- cause of a lack of awareness of risk and danger, accidental injury rates may be increased. Intellectual disability has an overall general population prevalence of approximately 1%, and prevalence rates vary by age. Prevalence for severe intellectual disability is approxi- mately 6 per 1,000. Onset of intellectual disability is in the developmental period. The age and characteristic features at onset depend on the etiology and severity of brain dysfunction. Delayed motor, language, and social milestones may be identifiable within the first 2 years of life among those with more severe intellectual disability, while mild levels may not be identifiable un- til school age when difficulty with academic learning becomes apparent. All criteria (in- cluding Criterion C) must be fulfilled by history or current presentation. Some children ity have deficits that meet criteria for global developmental delay. When intellectual disability is associated with a genetic syndrome, there may be a char- acteristic physical appearance (as in, e.g., Down syndrome). Some syndromes have a behavioral phenotype, which refers to specific behaviors that are characteristic of particular genetic disorder (e.g., Lesch—Nyhan syndrome). In acquired forms, the onset may be abrupt following an illness such as meningitis or encephalitis or head trauma occurring during the developmental period. When intellectual disability results from a loss of pre- viously acquired cognitive skills, as in severe traumatic brain injury, the diagnoses of in- tellectual disability and of a neurocognitive disorder may both be assigned. Although intellectual disability is generally nonprogressive, in certain genetic disor- ders (e.g., Rett syndrome) there are periods of worsening, followed by stabilization, and in others (e.g., San Phillippo syndrome) progressive worsening of intellectual function. After early childhood, the disorder is generally lifelong, although severity levels may change over time. The course may be influenced by underlying medical or genetic conditions and co—occurring conditions (e.g., hearing or visual impairments, epilepsy). Early and ongoing in- terventions may improve adaptive functioning throughout childhood and adulthood. In some cases, these result in significant improvement of intellectual functioning, such that the diagnosis of intellectual disability is no longer appropriate. Thus, it is common practice when assessing infants and young children to delay diagnosis of intellectual disability un- til after an appropriate course of intervention is provided. For older children and adults, the extent of support provided may allow for full participation in all activities of daily liv- ing and improved adaptive function. Diagnostic assessments must determine whether im- proved adaptive skills are the result of a stable, generalized new skill acquisition (in which case the diagnosis of intellectual disability may no longer be appropriate) or whether the improvement is contingent on the presence of supports and ongoing interventions (in which case the diagnosis of intellectual disability may still be appropriate). Genetic and physiological. Prenatal etiologies include genetic syndromes (e.g., se- disorders), inborn errors of metabolism, brain malformations, maternal disease (including placental disease), and environmental influences (e.g., alcohol, other drugs, toxins, terato— gens). Perinatal causes include a variety of labor and delivery-related events leading to neonatal encephalopathy. Postnatal causes include hypoxic ischemic injury, traumatic brain injury, infections, demyelinating disorders, seizure disorders (e.g., infantile spasms), severe and chronic social deprivation, and toxic metabolic syndromes and intoxications (e.g., lead, mercury). Intellectual disability occurs in all races and cultures. Cultural sensitivity and knowledge are needed during assessment, and the individual’s ethnic, cultural, and linguistic back- ground, available experiences, and adaptive functioning within his or her community and cultural setting must be taken into account. Overall, males are more likely than females to be diagnosed with both mild (average malezfemale ratio 1.6:1) and severe (average malezfemale ratio 12:1) forms of intellectual disability. However, gender ratios vary widely in reported studies. Sex-linked genetic fac- tors and male vulnerability to brain insult may account for some of the gender differences. A comprehensive evaluation includes an assessment of intellectual capacity and adaptive functioning; identification of genetic and nongenetic etiologies; evaluation for associated medical conditions (e.g., cerebral palsy, seizure disorder); and evaluation for co-occurring mental, emotional, and behavioral disorders. Components of the evaluation may include basic pre- and perinatal medical history, three—generational family pedigree, physical exam- ination, genetic evaluation (e.g., karyotype or chromosomal microarray analysis and testing for specific genetic syndromes), and metabolic screening and neuroimaging assessment. The diagnosis of intellectual disability should be made whenever Criteria A, B, and C are met. A diagnosis of intellectual disability should not be assumed because of a particular genetic or medical condition. A genetic syndrome linked to intellectual disability should be noted as a concurrent diagnosis with the intellectual disability. Major and mild neurocognitive disorders. Intellectual disability is categorized as a neu- rodevelopmental disorder and is distinct from the neurocognitive disorders, which are characterized by a loss of cognitive functioning. Major neurocognitive disorder may co- occur with intellectual disability (e.g., an individual with Down syndrome who develops Alzheimer’s disease, or an individual with intellectual disability who loses further cogni- tive capacity following a head injury). In such cases, the diagnoses of intellectual disability and neurocognitive disorder may both be given. Communication disorders and specific learning disorder. These neurodevelopmental disorders are specific to the communication and learning domains and do not show defi- cits in intellectual and adaptive behavior. They may co-occur with intellectual disability. Both diagnoses are made if full criteria are met for intellectual disability and a communi- cation disorder or specific learning disorder. Autism Spectrum disorder. Intellectual disability is common among individuals with autism spectrum disorder. Assessment of intellectual ability may be complicated by so- cial-communication and behavior deficits inherent to autism spectrum disorder, which may interfere with understanding and complying with test procedures. Appropriate as- sessment of intellectual functioning in autism spectrum disorder is essential, with reas- sessment across the developmental period, because IQ scores in autism spectrum disorder may be unstable, particularly in early childhood. Co-occurring mental, neurodevelopmental, medical, and physical conditions are frequent in intellectual disability, with rates of some conditions (e.g., mental disorders, cerebral palsy, and epilepsy) three to four times higher than in the general population. The prognosis and outcome of co-occurring diagnoses may be influenced by the presence of intellectual disability. Assessment procedures may require modifications because of associated disor- ders, including communication disorders, autism spectrum disorder, and motor, sensory, or other disorders. Knowledgeable informants are essential for identifying symptoms such as irritability, mood dysregulation, aggression, eating problems, and sleep problems, and for assessing adaptive functioning in various community settings. The most common co-occurring mental and neurodevelopmental disorders are atten- behavior); impulse-control disorders; and major neurocognitive disorder. Major depres- sive disorder may occur throughout the range of severity of intellectual disability. Self- agnosis of stereotypic movement disorder. Individuals with intellectual disability, partic- ularly those with more severe intellectual disability, may also exhibit aggression and disruptive behaviors, including harm of others or property destruction. Relationship to Other ClassificationsICD-ll (in development at the time of this publication) uses the term intellectual develop- mental disorders to indicate that these are disorders that involve impaired brain functioning early in life. These disorders are described in ICD-11 as a metasyndrome occurring in the developmental period analogous to dementia or neurocognitive disorder in later life. There are four subtypes in ICD-ll: mild, moderate, severe, and profound. The American Association on Intellectual and Developmental Disabilities (AAIDD) also uses the term intellectual disability with a similar meaning to the term as used in this manual. The AAIDD’s classification is multidimensional rather than categorical and is based on the disability construct. Rather than listing specifiers as is done in DSM-5, the AAIDD emphasizes a profile of supports based on severity.315.8 (F88)This diagnosis is reserved for individuals under the age of 5 years when the clinical severity level cannot be reliably assessed during early childhood. This category is diagnosed when an individual fails to meet expected developmental milestones in several areas of intellec- tual functioning, and applies to individuals who are unable to undergo systematic assess- ments of intellectual functioning, including children who are too young to participate in standardized testing. This category requires reassessment after a period of time. This category is reserved for individuals over the age of 5 years when assessment of the degree of intellectual disability (intellectual developmental disorder) by means of locally available procedures is rendered difficult or impossible because of associated sensory or physical impairments, as in blindness or prelingual deafness; locomotor disability; or pres- ence of severe problem behaviors or co-occurring mental disorder. This category should only be used in exceptional circumstances and requires reassessment after a period of time. Disorders of communication include deficits in language, speech, and communication. Speech is the expressive production of sounds and includes an individual’s articulation, fluency, voice, and resonance quality. Language includes the form, function, and use of a conventional system of symbols (i.e., spoken words, sign language, written words, pic- tures) in a rule-governed manner for communication. Communication includes any verbal or nonverbal behavior (whether intentional or unintentional) that influences the behavior, ideas, or attitudes of another individual. Assessments of speech, language and communi- cation abilities must take into account the individual's cultural and language context, particularly for individuals growing up in bilingual environments. The standardized mea— sures of language development and of nonverbal intellectual capacity must be relevant for the cultural and linguistic group (i.e., tests developed and standardized for one group may not provide appropriate norms for a different group). The diagnostic category of commu- nication disorders includes the following: language disorder, speech sound disorder, childhood-onset fluency disorder (stuttering), social (pragmatic) communication disor- der, and other specified and unspecified communication disorders. Diagnostic Criteria 315.39 (F80.9)A. Persistent difficulties in the acquisition and use of language across modalities (i.e., spoken, written. sign language, or other) due to deficits in comprehension or produc- tion that include the following: 1. Reduced vocabulary (word knowledge and use). 2. Limited sentence structure (ability to put words and word endings together to form sentences based on the rules of grammar and morphology). 3. Impairments in discourse (ability to use vocabulary and connect sentences to ex- plain or describe a topic or series of events or have a conversation). B. Language abilities are substantially and quantitiably below those expected for age, re- sulting in functional limitations in effective communication, social participation, aca- demic achievement. or occupational performance, individually or in any combination. C. Onset of symptoms is in the early developmental period. D. The difficulties are not attributable to hearing or other sensory impairment. motor dys- function, or another medical or neurological condition and are not better explained by in- tellectual disability (intellectual developmental disorder) or global developmental delay. The core diagnostic features of language disorder are difficulties in the acquisition and use of language due to deficits in the comprehension or production of vocabulary, sentence structure, and discourse. The language deficits are evident in spoken communication, written communication, or sign language. Language learning and use is dependent on both receptive and expressive skills. Expressive ability refers to the production of vocal, ges- tural, or verbal signals, while receptive ability refers to the process of receiving and com- prehending language messages. Language skills need to be assessed in both expressive and receptive modalities as these may differ in severity. For example, an individual’s ex- pressive language may be severely impaired, while his receptive language is hardly im- paired at all. Language disorder usually affects vocabulary and grammar, and these effects then limit the capacity for discourse. The child’s first words and phrases are likely to be delayed in onset; vocabulary size is smaller and less varied than expected; and sentences are shorter and less complex with grammatical errors, especially in past tense. Deficits in com- prehension of language are frequently underestimated, as children may be good at using context to infer meaning. There may be word-finding problems, impoverished verbal def- initions, or poor understanding of synonyms, multiple meanings, or word play appro- priate for age and culture. Problems with remembering new words and sentences are manifested by difficulties following instructions of increasing length, difficulties rehears- ing strings of verbal information (e.g., remembering a phone number or a shopping list), and difficulties remembering novel sound sequences, a skill that may be important for learning new words. Difficulties with discourse are shown by a reduced ability to provide adequate information about the key events and to narrate a coherent story. The language difficulty is manifest by abilities substantially and quantifiably below that expected for age and significantly interfering with academic achievement, occupa- tional performance, effective communication, or socialization (Criterion B). A diagnosis of language disorder is made based on the synthesis of the individual’s history, direct clinical observation in different contexts (i.e., home, school, or work), and scores from standard- ized tests of language ability that can be used to guide estimates of severity. A positive family history of language disorders is often present. Individuals, even chil- dren, can be adept at accommodating to their limited language. They may appear to be shy or reticent to talk. Affected individuals may prefer to communicate only with family mem- bers or other familiar individuals. Although these social indicators are not diagnostic of a language disorder, if they are notable and persistent, they warrant referral for a full lan- guage assessment. Language disorder, particularly expressive deficits, may co-occur with speech sound disorder. Language acquisition is marked by changes from onset in toddlerhood to the adult level of competency that appears during adolescence. Changes appear across the dimensions of language (sounds, words, grammar, narratives/expository texts, and conversational skills) in age-graded increments and synchronies. Language disorder emerges during the early developmental period; however, there is considerable variation in early vocabulary acquisition and early word combinations, and individual differences are not, as single indicators, highly predictive of later outcomes. By age 4 years, individual differences in language ability are more stable, with better measurement accuracy, and are highly pre- dictive of later outcomes. Language disorder diagnosed from 4 years of age is likely to be stable over time and typically persists into adulthood, although the particular profile of language strengths and deficits is likely to change over the course of development. Children with receptive language impairments have a poorer prognosis than those with predominantly expressive impairments. They are more resistant to treatment, and diffi- culties with reading comprehension are frequently seen. Genetic and physiological. Language disorders are highly heritable, and family mem- bers are more likely to have a history of language impairment. Normal variations in language. Language disorder needs to be distinguished from nor- mal developmental variations, and this distinction may be difficult to make before 4 years of age. Regional, social, or cultural/ethnic variations of language (e.g,, dialects) must be considered when an individual is being assessed for language impairment. Hearing or other sensory impairment. Hearing impairment needs to be excluded as the primary cause of language difficulties. Language deficits may be associated with a hearing impairment, other sensory deficit, or a speech-motor deficit. When language deficits are in excess of those usually associated with these problems, a diagnosis of language disorder may be made. Intellectual disability (intellectual developmental disorder). Language delay is often the presenting feature of intellectual disability, and the definitive diagnosis may not be made until the child is able to complete standardized assessments. A separate diagnosis is not given unless the language deficits are clearly in excess of the intellectual limitations. Neurological disorders. Language disorder can be acquired in association with neuro- logical disorders, including epilepsy (e.gi, acquired aphasia or Landau-Kleffner syndrome). Language regression. Loss of speech and language in a child younger than 3 years may be a sign of autism spectrum disorder (with developmental regression) or a specific neuro- logical condition, such as Landau-Kleffner syndrome. Among children older than 3 years, language loss may be a symptom of seizures, and a diagnostic assessment is necessary to exclude the presence of epilepsy (e.g., routine and sleep electroencephalogram). Language disorder is strongly associated with other neurodevelopmental disorders in terms of specific learning disorder (literacy and numeracy), attention-deficit/hyperactiv- ity disorder, autism spectrum disorder, and developmental coordination disorder. It is also associated with social (pragmatic) communication disorder. A positive family history of speech or language disorders is often present. Diagnostic Criteria 315.39 (F80.0)A. Persistent difficulty with speech sound production that interferes with speech intelligi- bility or prevents verbal communication of messages. B. The disturbance causes limitations in effective communication that interfere with social participation, academic achievement. or occupational performance, individually or in any combination. C. Onset of symptoms is in the early developmental period. D. The difficulties are not attributable to congenital or acquired conditions, such as cere- bral palsy, cleft palate. deafness or hearing loss, traumatic brain injury, or other medi- cal or neurological conditions. Speech sound production describes the clear articulation of the phonemes (i.e., individual sounds) that in combination make up spoken words. Speech sound production requires both the phonological knowledge of speech sounds and the ability to coordinate the movements of the articulators (i.e., the jaw, tongue, and lips,) with breathing and vocalizing for speech. Chil- dren with speech production difficulties may experience difficulty with phonological knowl- edge of speech sounds or the ability to coordinate movements for speech in varying degrees Speech sound disorder is thus heterogeneous in its underlying mechanisms and includes pho- nological disorder and articulation disorder. A speech sound disorder is diagnosed when speech sound production is not what would be expected based on the child’s age and devel- opmental stage and when the deficits are not the result of a physical, structural, neurological, or hearing impairment. Among typically developing children at age 4 years, overall speech should be intelligible, whereas at age 2 years, only 50% may be understandable. Language disorder, particularly expressive deficits, may be found to co-occur with speech sound disorder. A positive family history of speech or language disorders is often present. If the ability to rapidly coordinate the articulators is a particular aspect of difficulty, there may be a history of delay or incoordination in acquiring skills that also utilize the articulators and related facial musculature; among others, these skills include chewing, maintaining mouth closure, and blowing the nose. Other areas of motor coordination may be impaired as in developmental coordination disorder. Verbal dyspruxia is a term also used for speech production problems. Speech may be differentially impaired in certain genetic conditions (e.g., Down syn- drome, 22q deletion, FoxPZ gene mutation). If present, these should also be coded. Learning to produce speech sounds clearly and accurately and learning to produce con- nected speech fluently are developmental skills. Articulation of speech sounds follows a developmental pattern, which is reflected in the age norms of standardized tests. It is not unusual for typically developing children to use developmental processes for shortening words and syllables as they are learning to talk, but their progression in mastering speech sound production should result in mostly intelligible speech by age 3 years. Children with speech sound disorder continue to use immature phonological simplification processes past the age when most children can produce words clearly. accurately according to age and community norms by age 7 years. The most frequently mis- articulated sounds also tend to be learned later, leading them to be called the ”late eight" (I, r, s, 2, th, ch, dzh, and zh). Misarticulation of any of these sounds by itself could be considered within normal limits up to age 8 years. When multiple sounds are involved, it may be appro- priate to target some of those sounds as part of a plan to improve intelligibility prior to the age at which almost all children can produce them accurately. Lisping (i.e., misarticulating sibi- lants) is particularly common and may involve frontal or lateral patterns of airstream direc- tion. It may be associated with an abnormal tongue—thrust swallowing pattern. Most children with speech sound disorder respond well to treatment, and speech dif- ficulties improve over time, and thus the disorder may not be lifelong. However, when a language disorder is also present, the speech disorder has a poorer prognosis and may be associated with specific learning disorders. Normal variations in speech. Regional, social, or cultural/ethnic variations of speech should be considered before making the diagnosis. Hearing or other sensory impairment. Hearing impairment or deafness may result in abnormalities of speech. Deficits of speech sound production may be associated with a hearing impairment, other sensory deficit, or a speech-motor deficit. When speech deficits are in excess of those usually associated with these problems, a diagnosis of speech sound disorder may be made. Structu ral deficits. Speech impairment may be due to structural deficits (e.g., cleft palate). Dysarth ria. Speech impairment may be attributable to a motor disorder, such as cerebral palsy. Neurological signs, as well as distinctive features of voice, differentiate dysarthria from speech sound disorder, although in young children (under 3 years) differentiation may be difficult, particularly when there is no or minimal general body motor involve- ment (as in, e.g., Worster-Drought syndrome). Selective mutism. Limited use of speech may be a sign of selective mutism, an anxiety disorder that is characterized by a lack of speech in one or more contexts or settings. Se- lective mutism may develop in children with a speech disorder because of embarassment about their impairments, but many children with selective mutism exhibit normal speech in ”safe” settings, such as at home or with close friends. Diagnostic Criteria 315.35 (F80.81)A. Disturbances in the normal fluency and time patterning of speech that are inappropri- ate for the individual’s age and language skills, persist over time, and are characterized by frequent and marked occurrences of one (or more) of the following: 1. Sound and syllable repetitions. 2. Sound prolongations of consonants as well as vowels.Broken words (e.g., pauses within a word).Audible or silent blocking (filled or unfilled pauses in speech). Circumlocutions (word substitutions to avoid problematic words).Words produced with an excess of physical tension.Monosyllabic whoIe-word repetitions (e.g., “l-l-l-l see him”).B. The disturbance causes anxiety about speaking or limitations in effective communica- tion, social participation, or academic or occupational performance, individually or in any combination. C. The onset of symptoms is in the early developmental period. (Note: Later-onset cases are diagnosed as 307.0 [F985] aduIt-onset fluency disorder.) D. The disturbance is not attributable to a speech-motor or sensory deficit, dysfluency as- sociated with neurological insult (e.g., stroke, tumor, trauma). or another medical con- dition and is not better explained by another mental disorder. The essential feature of childhood-onset fluency disorder (stuttering) is a disturbance in the normal fluency and time patterning of speech that is inappropriate for the individual’s age. This disturbance is characterized by frequent repetitions or prolongations of sounds or syllables and by other types of speech dysfluencies, including broken words (e.g., pauses within a word), audible or silent blocking (i.e., filled or unfilled pauses in speech), circumlocutions (i.e., word substitutions to avoid problematic words), words produced with an excess of physical tension, and monosyllabic whole-word repetitions (e.g., ”I-I-I-I see him"). The disturbance in fluency interferes with academic or occupational achieve- ment or with social communication. The extent of the disturbance varies from situation to situation and often is more severe when there is special pressure to communicate (e.g., giv- ing a report at school, interviewing for a job). Dysfluency is often absent during oral read- ing, singing, or talking to inanimate objects or to pets. Fearful anticipation of the problem may develop. The speaker may attempt to avoid dys- fluencies by linguistic mechanisms (e.g., altering the rate of speech, avoiding certain words or sounds) or by avoiding certain speech situations, such as telephoning or public speaking. In addition to being features of the condition, stress and anxiety have been shown to exacerbate dysfluency. (e.g., eye blinks, tics, tremors of the lips or face, jerking of the head, breathing movements, fist clenching). Children with fluency disorder show a range of language abilities, and the relationship between fluency disorder and language abilities is unclear. Childhood-onset fluency disorder, or developmental stuttering, occurs by age 6 for 80%— 90% of affected individuals, with age at onset ranging from 2 to 7 years. The onset can be insidious or more sudden. Typically, dysfluencies start gradually, with repetition of initial consonants, first words of a phrase, or long words. The child may not be aware of dysflu- encies. As the disorder progresses, the dysfluencies become more frequent and interfering, occurring on the most meaningful words or phrases in the utterance. As the child becomes aware of the speech difficulty, he or she may develop mechanisms for avoiding the dys- fluencies and emotional responses, including avoidance of public speaking and use of short and simple utterances. Longitudinal research shows that 65%—85% of children re- cover from the dysfluency, with severity of fluency disorder at age 8 years predicting re- covery or persistence into adolescence and beyond. Genetic and physiological. The risk of stuttering among first-degree biological rela- tives of individuals with childhood-onset fluency disorder is more than three times the risk in the general population. In addition to being features of the condition, stress and anxiety can exacerbate dysflu- ency. Impairment of social functioning may result from this anxiety. Sensory deficits. Dysfluencies of speech may be associated with a hearing impairment or other sensory deficit or a speech-motor deficit. When the speech dysfluencies are in ex- cess of those usually associated with these problems, a diagnosis of childhood-onset flu- ency disorder may be made. Normal speech dysfluencies. The disorder must be distinguished from normal dysflu- encies that occur frequently in young children, which include whole-word or phrase rep- etitions (e.g., “I want, I want ice cream”), incomplete phrases, interjections, unfilled pauses, and parenthetical remarks. If these difficulties increase in frequency or complexity as the child grows older, a diagnosis of childhood-onset fluency disorder is appropriate. Medication side effects. Stuttering may occur as a side effect of medication and may be detected by a temporal relationship with exposure to the medication. Adult-onset dysfluencies. If onset of dysfluencies is during or after adolescence, it is an ”adult-onset dysfluency” rather than a neurodevelopmental disorder. Adult-onset dysflu- encies are associated with specific neurological insults and a variety of medical conditions and mental disorders and may be specified with them, but they are not a DSM-S diagnosis. Tourette's disorder. Vocal tics and repetitive vocalizations of Tourette’s disorder should be distinguishable from the repetitive sounds of childhood-onset fluency disorder by their nature and timing. Diagnostic Criteria 315.39 (F80.89)A. Persistent difficulties in the social use of verbal and nonverbal communication as man- ifested by all of the following: 1. Deficits in using communication for social purposes, such as greeting and sharing information, in a manner that is appropriate for the social context. 2. Impairment of the ability to change communication to match context or the needs of the listener. such as speaking differently in a classroom than on a playground. talk- ing differently to a child than to an adult, and avoiding use of overly formal language. 3. Difficulties following rules for conversation and storytelling, such as taking turns in conversation, rephrasing when misunderstood, and knowing how to use verbal and nonverbal signals to regulate interaction. 4. Difficulties understanding what is not explicitly stated (e.g., making inferences) and nonliteral or ambiguous meanings of language (e.g., idioms, humor, metaphors, multiple meanings that depend on the context for interpretation). B. The deficits result in functional limitations in effective communication, social participa- tion, social relationships, academic achievement, or occupational performance, indi- vidually or in combination. C. The onset of the symptoms is in the early developmental period (but deficits may not become fully manifest until social communication demands exceed limited capacities). D. The symptoms are not attributable to another medical or neurological condition or to low abilities in the domains of word structure and grammar, and are not better explained by autism spectrum disorder, intellectual disability (intellectual developmental disorder), global developmental delay, or another mental disorder. Social (pragmatic) communication disorder is characterized by a primary difficulty with pragmatics, or the social use of language and communication, as manifested by deficits in understanding and following social rules of verbal and nonverbal communication in nat- uralistic contexts, changing language according to the needs of the listener or situation, and following rules for conversations and storytelling. The deficits in social communica- tion result in functional limitations in effective communication, social participation, devel- opment of social relationships, academic achievement, or occupational performance. The deficits are not better explained by low abilities in the domains of structural language or cognitive ability. The most common associated feature of social (pragmatic) communication disorder is lan- guage impairment, which is characterized by a history of delay in reaching language mile- stones, and historical, if not current, structural language problems (see ”language Disorder” earlier in this chapter). Individuals with social communication deficits may avoid social inter- actions. Attention-deficit/hyperactivity disorder (ADHD), behavioral problems, and specific learning disorders are also more common among affected individuals. in speech and language, diagnosis of social (pragmatic) communication disorder is rare among children younger than 4 years. By age 4 or 5 years, most children should possess adequate speech and language abilities to permit identification of specific deficits in social communication. Milder forms of the disorder may not become apparent until early ado~ lescence, when language and social interactions become more complex. The outcome of social (pragmatic) communication disorder is variable, with some chil- dren improving substantially over time and others continuing to have difficulties persist- ing into adulthood. Even among those who have significant improvements, the early and also in acquisition of other related skills, such as written expression. Genetic and physiological. A family history of autism spectrum disorder, communica- tion disorders, or specific learning disorder appears to increase the risk for social (prag- matic) communication disorder. Autism spectrutn disorder. Autism spectrum disorder is the primary diagnostic con- sideration for individuals presenting with social communication deficits. The two disor- ders can be differentiated by the presence in autism spectrum disorder of restricted/ repetitive patterns of behavior, interests, or activities and their absence in social (prag- matic) communication disorder. Individuals with autism spectrum disorder may only dis- play the restricted / repetitive patterns of behavior, interests, and activities during the early developmental period, so a comprehensive history should be obtained. Current absence of symptoms would not preclude a diagnosis of autism spectrum disorder, if the restricted interests and repetitive behaviors were present in the past. A diagnosis of social (prag- matic) communication disorder should be considered only if the developmental history fails to reveal any evidence of restricted/repetitive patterns of behavior, interests, or ac- tivities. Attention-deficit/hyperactivity disorder. Primary deficits of ADHD may cause impair- ments in social communication and functional limitations of effective communication, so- cial participation, or academic achievement. Social anxiety disorder (social phobia). The symptoms of social communication disor- der overlap with those of social anxiety disorder. The differentiating feature is the timing of the onset of symptoms. In social (pragmatic) communication disorder, the individual has never had effective social communication; in social anxiety disorder, the social com- munication skills developed appropriately but are not utilized because of anxiety, fear, or distress about social interactions. delay. Social communication skills may be deficient among individuals with global de- velopmental delay or intellectual disability, but a separate diagnosis is not given unless the social communication deficits are clearly in excess of the intellectual limitations. 307.9 (F80.9)This category applies to presentations in which symptoms characteristic of communication disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for com- munication disorder or for any of the disorders in the neurodevelopmental disorders diag- nostic class. The unspecified communication disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for com- munication disorder or for a specific neurodevelopmental disorder, and includes presen- tations in which there is insufficient information to make a more specific diagnosis. Diagnostic Criteria 299.00 (F84.0)A. Persistent deficits in social communication and social interaction across multiple con- texts, as manifested by the following, currently or by history (examples are illustrative, not exhaustive; see text): 1. Deficits in sociaI-emotional reciprocity, ranging, for example, from abnormal social approach and failure of normal back-and-forth conversation; to reduced sharing of interests, emotions, or affect; to failure to initiate or respond to social interactions. 2. Deficits in nonverbal communicative behaviors used for social interaction, ranging, for example, from poorly integrated verbal and nonverbal communication; to abnor- gestures; to a total lack of facial expressions and nonverbal communication. 3. Deficits in developing, maintaining, and understanding relationships, ranging, for ex- ample, from difficulties adjusting behavior to suit various social contexts; to difficulties in sharing imaginative play or in making friends; to absence of interest in peers. Specify current severity:Severity is based on social communication impairments and restricted, re- petitive patterns of behavior (seeTable 2). B. Restricted, repetitive patterns of behavior, interests, or activities, as manifested by at least two of the following, currently or by history (examples are illustrative, not exhaus- tive; see text): 1. Stereotyped or repetitive motor movements, use of objects, or speech (e.g., simple motor stereotypies, lining up toys or flipping objects, echolalia, idiosyncratic phrases). 2. Insistence on sameness, inflexible adherence to routines, or ritualized patterns of verbal or nonverbal behavior (e.g., extreme distress at small changes, difficulties with transitions, rigid thinking patterns, greeting rituals, need to take same route or eat same food every day). 3. Highly restricted, fixated interests that are abnormal in intensity or focus (e.g., strong attachment to or preoccupation with unusual objects, excessively circum- scribed or perseverative interests). 4. Hyper- or hyporeactivity to sensory input or unusual interest in sensory aspects of the environment (e.g., apparent indifference to pain/temperature, adverse re- sponse to specific sounds or textures, excessive smelling or touching of objects, visual fascination with lights or movement). Specify current severity:Severity is based on social communication impairments and restricted, re- petitive patterns of behavior (see Table 2). C. Symptoms must be present in the early developmental period (but may not become fully manifest until social demands exceed limited capacities, or may be masked by learned strategies in later life). D. Symptoms cause clinically significant impairment in social, occupational, or other im- portant areas of current functioning. E. These disturbances are not better explained by intellectual disability (intellectual devel- opmental disorder) or global developmental delay. Intellectual disability and autism spectrum disorder frequently co-occur; to make comorbid diagnoses of autism spec- trum disorder and intellectual disability, social communication should be below that ex- pected for general developmental level. Note: Individuals with a well-established DSM-IV diagnosis of autistic disorder, Asperger’s disorder, or pervasive developmental disorder not othenNise specified should be given the diagnosis of autism spectrum disorder. Individuals who have marked deficits in social communication, but whose symptoms do not othenivise meet criteria for autism spectrum disorder, should be evaluated for social (pragmatic) communication disorder. Specify if:Associated with a known medicai or genetic condition or environmental factor (Coding note: Use additional code to identify the associated medical or genetic condition.) Associated with another neurodevelopmental, mental, or behavioral disorder (Coding note: Use additional code[s] to identify the associated neurodevelopmental, mental, or behavioral disorder[s].) With catatonia (refer to the criteria for catatonia associated with another mental dis- order, pp. 119—120, for definition) (Coding note: Use additional code 293.89 [F06.1] catatonia associated with autism spectrum disorder to indicate the presence of the co- morbid catatonia.) For autism spectrum disorder that is associated with a known medical or genetic condition or environmental factor, or with another neurodevelopmental, mental, or behavioral dis- order, record autism spectrum disorder associated with (name of condition, disorder, or factor) (e.g., autism spectrum disorder associated with Rett syndrome). Severity should be recorded as level of support needed for each of the two psychopathological domains in Table 2 (e.g., “requiring very substantial support for deficits in social communication and requiring substantial support for restricted, repetitive behaviors”). Specification of ”with ment" should be recorded next. Language impairment specification should be recorded thereafter. If there is accompanying language impairment, the current level of verbal func— tioning should be recorded (e.g., “with accompanying language impairment—no intelligi- ble speech” or ”with accompanying language impairment—phrase speech"). If catatonia is present, record separately ”catatonia associated with autism spectrum disorder.” The severity specifiers (see Table 2) may be used to describe succinctly the current symp- tomatology (which might fall below level 1), with the recognition that severity may vary by context and fluctuate over time. Severity of social communication difficulties and re— stricted, repetitive behaviors should be separately rated. The descriptive severity categories should not be used to determine eligibility for and provision of services; these can only be developed at an individual level and through discussion of personal priorities and targets. Regarding the specifier ”with or without accompanying intellectual impairment,” un- derstanding the (often uneven) intellectual profile of a child or adult with autism spectrum disorder is necessary for interpreting diagnostic features. 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To use the specifier ”with or without accompanying language impairment,” the cur- rent level of verbal functioning should be assessed and described. Examples of the specific speech (nonverbal), single words only, or phrase speech. Language level in individuals full sentences or has fluent speech. Since receptive language may lag behind expressive language development in autism spectrum disorder, receptive and expressive language skills should be considered separately. The specifier “associated with a known medical or genetic condition or environmental fac- tor" should be used when the individual has a known genetic disorder (e.g., Rett syndrome, Fragile X syndrome, Down syndrome), a medical disorder (e.g. epilepsy), or a history of envi- ronmental exposure (e.g., valproate, fetal alcohol syndrome, very low birth weight). Additional neurodevelopmental, mental or behavioral conditions should also be noted (e.g., attention-deficit/hyperactivity disorder; developmental coordination disorder; dis— ruptive behavior, impulse-control, or conduct disorders; anxiety, depressive, or bipolar disorders; tics or Tourette’s disorder; self—injury; feeding, elimination, or sleep disorders). The essential features of autism spectrum disorder are persistent impairment in reciprocal social communication and social interaction (Criterion A), and restricted, repetitive pat- terns of behavior, interests, or activities (Criterion B). These symptoms are present from early childhood and limit or impair everyday functioning (Criteria C and D). The stage at which functional impairment becomes obvious will vary according to characteristics of the individual and his or her environment. Core diagnostic features are evident in the developmental period, but intervention, compensation, and current supports may mask difficulties in at least some contexts. Manifestations of the disorder also vary greatly de- pending on the severity of the autistic condition, developmental level, and chronological age; hence, the term spectrum. Autism spectrum disorder encompasses disorders previously re- ferred to as early infantile autism, childhood autism, Kanner’s autism, high-functioning autism, atypical autism, pervasive developmental disorder not otherwise specified, child- hood disintegrative disorder, and Asperger’s disorder. The impairments in communication and social interaction specified in Criterion A are pervasive and sustained. Diagnoses are most valid and reliable when based on multiple sources of information, including clinician’s observations, caregiver history, and, when possible, self—report. Verbal and nonverbal deficits in social communication have varying manifestations, depending on the individual's age, intellectual level, and language ability, as well as other factors such as treatment history and current support. Many individuals have language deficits, ranging from complete lack of speech through language delays, poor comprehension of speech, echoed speech, or stilted and overly literal language. Even when formal language skills (e.g., vocabulary, grammar) are intact, the use of language for reciprocal social communication is impaired in autism spectrum disorder. Deficits in social-emotional reciprocity (i.e., the ability to engage with others and share thoughts and feelings) are clearly evident in young children with the disorder, who may show little or no initiation of social interaction and no sharing of emotions, along with re- duced or absent imitation of others’ behavior. What language exists is often one-sided, lacking in social reciprocity, and used to request or label rather than to comment, share feelings, or converse. In adults without intellectual disabilities or language delays, deficits sponding to complex social cues (e.g., when and how to join a conversation, what not to say). Adults who have developed compensation strategies for some social challenges still struggle in novel or unsupported situations and suffer from the effort and anxiety of con- sciously calculating what is socially intuitive for most individuals. Deficits in nonverbal communicative behaviors used for social interaction are mani- fested by absent, reduced, or atypical use of eye contact (relative to cultural norms), ges- tures, facial expressions, body orientation, or speech intonation. An early feature of autism spectrum disorder is impaired joint attention as manifested by a lack of pointing, showing, or bringing objects to share interest with others, or failure to follow someone’s pointing or eye gaze. Individuals may learn a few functional gestures, but their repertoire is smaller than that of others, and they often fail to use expressive gestures spontaneously in com- munication. Among adults with fluent language, the difficulty in coordinating nonverbal communication with speech may give the impression of odd, wooden, or exaggerated ”body language" during interactions. Impairment may be relatively subtle within indi- vidual modes (e.g., someone may have relatively good eye contact when speaking) but noticeable in poor integration of eye contact, gesture, body posture, prosody, and facial ex- pression for social communication. Deficits in developing, maintaining, and understanding relationships should be judged against norms for age, gender, and culture. There may be absent, reduced, or atyp- ical social interest, manifested by rejection of others, passivity, or inappropriate ap- proaches that seem aggressive or disruptive. These difficulties are particularly evident in young children, in whom there is often a lack of shared social play and imagination (e.g., age-appropriate flexible pretend play) and, later, insistence on playing by very fixed rules. Older individuals may struggle to understand what behavior is considered appropriate in one situation but not another (e.g., casual behavior during a job interview), or the different ways that language may be used to communicate (e.g., irony, white lies). There may be an apparent preference for solitary activities or for interacting with much younger or older people. Frequently, there is a desire to establish friendships without a complete or realistic idea of what friendship entails (e.g., one-sided friendships or friendships based solely on shared special interests). Relationships with siblings, co-workers, and caregivers are also important to consider (in terms of reciprocity). Autism spectrum disorder is also defined by restricted, repetitive patterns of behavior, interests, or activities (as specified in Criterion B), which show a range of manifestations according to age and ability, intervention, and current supports. Stereotyped or repetitive behaviors include simple motor stereotypies (e.g., hand flapping, finger flicking), repeti- tive use of objects (e.g., spinning coins, lining up toys), and repetitive speech (e.g., echola- lia, the delayed or immediate parroting of heard words; use of "you" when referring to self; stereotyped use of words, phrases, or prosodic patterns). Excessive adherence to rou- tines and restricted patterns of behavior may be manifest in resistance to change (e.g., dis- tress at apparently small changes, such as in packaging of a favorite food; insistence on adherence to rules; rigidity of thinking) or ritualized patterns of verbal or nonverbal be- havior (e.g., repetitive questioning, pacing a perimeter). Highly restricted, fixated interests in autism spectrum disorder tend to be abnormal in intensity or focus (e.g., a toddler strongly attached to a pan; a child preoccupied with vacuum cleaners; an adult spending hours writing out timetables). Some fascinations and routines may relate to apparent hy- per- or hyporeactivity to sensory input, manifested through extreme responses to specific sounds or textures, excessive smelling or touching of objects, fascination with lights or spinning objects, and sometimes apparent indifference to pain, heat, or cold. Extreme re- action to or rituals involving taste, smell, texture, or appearance of food or excessive food restrictions are common and may be a presenting feature of autism spectrum disorder. Many adults with autism spectrum disorder without intellectual or language disabili- ties learn to suppress repetitive behavior in public. Special interests may be a source of pleasure and motivation and provide avenues for education and employment later in life. Diagnostic criteria may be met when restricted, repetitive patterns of behavior, interests, or activities were clearly present during childhood or at some time in the past, even if symptoms are no longer present. Criterion D requires that the features must cause clinically significant impairment in so- cial, occupational, or other important areas of current functioning. Criterion E specifies that the social communication deficits, although sometimes accompanied by intellectual disabil- ity (intellectual developmental disorder), are not in line with the individual’s developmental level; impairments exceed difficulties expected on the basis of developmental level. Standardized behavioral diagnostic instruments with good psychometric properties, including caregiver interviews, questionnaires and clinician observation measures, are available and can improve reliability of diagnosis over time and across clinicians. Many individuals with autism spectrum disorder also have intellectual impairment and/ or language impairment (e.g., slow to talk, language comprehension behind production). Even those with average or high intelligence have an uneven profile of abilities. The gap between intellectual and adaptive functional skills is often large. Motor deficits are often present, in- cluding odd gait, clumsiness, and other abnormal motor signs (e.g., walking on tiptoes). Self- injury (e.g., head banging, biting the wrist) may occur, and disruptive/challenging behav- iors are more common in children and adolescents with autism spectrum disorder than other disorders, including intellectual disability. Adolescents and adults with autism spec- trum disorder are prone to anxiety and depression. Some individuals develop catatonic—like motor behavior (slowing and ”freezing” mid-action), but these are typically not of the mag- nitude of a catatonic episode. However, it is possible for individuals with autism spectrum disorder to experience a marked deterioration in motor symptoms and display a full cata- tonic episode with symptoms such as mutism, posturing, grimacing and waxy flexibility. The risk period for comorbid catatonia appears to be greatest in the adolescent years. In recent years, reported frequencies for autism spectrum disorder across US. and non- U.S. countries have approached 1% of the population, with similar estimates in child and adult samples. It remains unclear whether higher rates reflect an expansion of the diag- nostic criteria of DSM-IV to include subthreshold cases, increased awareness, differences in study methodology, or a true increase in the frequency of autism spectrum disorder. The age and pattern of onset also should be noted for autism spectrum disorder. Symptoms are typically recognized during the second year of life (12—24 months of age) but may be seen earlier than 12 months if developmental delays are severe, or noted later than 24 months if symptoms are more subtle. The pattern of onset description might include information about early developmental delays or any losses of social or language skills. In cases where skills have been lost, parents or caregivers may give a history of a gradual or relatively rapid deterioration in social behaviors or language skills. Typically, this would occur be- tween 12 and 24 months of age and is distinguished from the rare instances of developmen- tal regression occurring after at least 2 years of normal development (previously described as childhood disintegrative disorder). The behavioral features of autism spectrum disorder first become evident in early childhood, with some cases presenting a lack of interest in social interaction in the first year of life. Some children with autism spectrum disorder experience developmental pla- teaus or regression, with a gradual or relatively rapid deterioration in social behaviors or use of language, often during the first 2 years of life. Such losses are rare in other disor- ders and may be a useful "red flag" for autism spectrum disorder. Much more unusual and warranting more extensive medical investigation are losses of skills beyond social communication (e.g., loss of self—care, toileting, motor skills) or those occurring after the second birthday (see also Rett syndrome in the section ”Differential Diagnosis” for this disorder). First symptoms of autism spectrum disorder frequently involve delayed language de- velopment, often accompanied by lack of social interest or unusual social interactions (e.g., pulling individuals by the hand without any attempt to look at them), odd play patterns (e.g., carrying toys around but never playing with them), and unusual communication patterns (e.g., knowing the alphabet but not responding to own name). Deafness may be suspected but is typically ruled out. During the second year, odd and repetitive behaviors and the absence of typical play become more apparent. Since many typically developing young children have strong preferences and enjoy repetition (e.g., eating the same foods, watching the same video multiple times), distinguishing restricted and repetitive behav- iors that are diagnostic of autism spectrum disorder can be difficult in preschoolers. The clinical distinction is based on the type, frequency, and intensity of the behavior (e.g., a child who daily lines up objects for hours and is very distressed if any item is moved). Autism spectrum disorder is not a degenerative disorder, and it is typical for learning and compensation to continue throughout life. Symptoms are often most marked in early childhood and early school years, with developmental gains typical in later childhood in at least some areas (e.g., increased interest in social interaction). A small proportion of in— dividuals deteriorate behaviorally during adolescence, whereas most others improve. Only a minority of individuals with autism spectrum disorder live and work indepen- dently in adulthood; those who do tend to have superior language and intellectual abilities and are able to find a niche that matches their special interests and skills. In general, indi- viduals with lower levels of impairment may be better able to function independently. However, even these individuals may remain socially naive and vulnerable, have difficul- ties organizing practical demands without aid, and are prone to anxiety and depression. Many adults report using compensation strategies and coping mechanisms to mask their difficulties in public but suffer from the stress and effort of maintaining a socially accept- able facade. Scarcely anything is known about old age in autism spectrum disorder. Some individuals come for first diagnosis in adulthood, perhaps prompted by the diagno- sis of autism in a child in the family or a breakdown of relations at work or home. Obtaining de- tailed developmental history in such cases may be difficult, and it is important to consider self- reported difficulties. Where clinical observation suggests criteria are currently met, autism spectrum disorder may be diagnosed, provided there is no evidence of good social and com- munication skills in childhood. For example, the report (by parents or another relative) that the cation skills throughout childhood would rule out a diagnosis of autism spectrum disorder; however, the absence of developmental information in itself should not do so. Manifestations of the social and communication impairments and restricted/ repeti- tive behaviors that define autism spectrum disorder are clear in the developmental period. In later life, intervention or compensation, as well as current supports, may mask these dif- ficulties in at least some contexts. However, symptoms remain sufficient to cause current impairment in social, occupational, or other important areas of functioning. The best established prognostic factors for individual outcome within autism spectrum disorder are presence or absence of associated intellectual disability and language impair— ment (e.g., functional language by age 5 years is a good prognostic sign) and additional mental health problems. Epilepsy, as a comorbid diagnosis, is associated with greater in- tellectual disability and lower verbal ability. Environmental. A variety of nonspecific risk factors, such as advanced parental age, low birth weight, or fetal exposure to valproate, may contribute to risk of autism spectrum dis- order. Genetic and physiological. Heritability estimates for autism spectrum disorder have ranged from 37% to higher than 90%, based on twin concordance rates. Currently, as many as 15% of cases of autism spectrum disorder appear to be associated with a known genetic mutation, with different de novo copy number variants or de novo mutations in specific genes associated with the disorder in different families. However, even when an autism spectrum disorder is associated with a known genetic mutation, it does not appear to be fully penetrant. Risk for the remainder of cases appears to be polygenic, with perhaps hun- dreds of genetic loci making relatively small contributions. Cultural differences will exist in norms for social interaction, nonverbal communication, and relationships, but individuals with autism spectrum disorder are markedly impaired against the norms for their cultural context. Cultural and socioeconomic factors may affect age at recognition or diagnosis; for example, in the United States, late or underdiagnosis of autism spectrum disorder among African American children may occur. Autism spectrum disorder is diagnosed four times more often in males than in females. In clinic samples, females tend to be more likely to show accompanying intellectual disabil- ity, suggesting that girls without accompanying intellectual impairments or language delays may go unrecognized, perhaps because of subtler manifestation of social and com- munication difficulties. Functional Consequences of Autism Spectrum DisorderIn young children with autism spectrum disorder, lack of social and communication abil- ities may hamper learning, especially learning through social interaction or in settings with peers. In the home, insistence on routines and aversion to change, as well as sensory sensitivities, may interfere with eating and sleeping and make routine care (e.g., haircuts, dental work) extremely difficult. Adaptive skills are typically below measured IQ. Ex- treme difficulties in planning, organization, and coping with change negatively impact academic achievement, even for students with above-average intelligence. During adult- hood, these individuals may have difficulties establishing independence because of con- tinued rigidity and difficulty with novelty. Many individuals with autism spectrum disorder, even without intellectual disability, have poor adult psychosocial functioning as indexed by measures such as independent living and gainful employment. Functional consequences in old age are unknown, but so- cial isolation and communication problems (e.g., reduced help-seeking) are likely to have consequences for health in older adulthood. Rett syndrome. Disruption of social interaction may be observed during the regressive phase of Rett syndrome (typically between 1—4 years of age); thus, a substantial proportion spectrum disorder. However, after this period, most individuals with Rett syndrome im— prove their social communication skills, and autistic features are no longer a major area of concern. Consequently, autism spectrum disorder should be considered only when all di- agnostic criteria are met. Selective mutism. In selective mutism, early development is not typically disturbed. The affected child usually exhibits appropriate communication skills in certain contexts and settings. Even in settings where the child is mute, social reciprocity is not impaired, nor are restricted or repetitive patterns of behavior present. Language disorders and social (pragmatic) communication disorder. In some forms of language disorder, there may be problems of communication and some secondary so- cial difficulties. However, specific language disorder is not usually associated with abnor— mal nonverbal communication, nor with the presence of restricted, repetitive patterns of behavior, interests, or activities. but does not show restricted and repetitive behavior or interests, criteria for social (prag- matic) communication disorder, instead of autism spectrum disorder, may be met. The di- agnosis of autism spectrum disorder supersedes that of social (pragmatic) communication disorder whenever the criteria for autism spectrum disorder are met, and care should be taken to enquire carefully regarding past or current restricted/ repetitive behavior. disorder. Intellectual disability without autism spectrum disorder may be difficult to differentiate from autism spectrum disorder in very young children. Individuals with in- challenge for differential diagnosis, since repetitive behavior often occurs in such individ- uals as well. A diagnosis of autism spectrum disorder in an individual with intellectual disability is appropriate when social communication and interaction are significantly im- paired relative to the developmental level of the individual’s nonverbal skills (e.g., fine motor skills, nonverbal problem solving). In contrast, intellectual disability is the appropri- ate diagnosis when there is no apparent discrepancy between the level of social-commu- nicative skills and other intellectual skills. Stereotypic movement disorder. Motor stereotypies are among the diagnostic charac- teristics of autism spectrum disorder, so an additional diagnosis of stereotypic movement disorder is not given when such repetitive behaviors are better explained by the presence of autism spectrum disorder. However, when stereotypies cause self—injury and become a focus of treatment, both diagnoses may be appropriate. Attention-deficit/hyperactivity disorder. Abnormalities of attention (overly focused or easily distracted) are common in individuals with autism spectrum disorder, as is hy- peractivity. A diagnosis of attention-deficit/hyperactivity disorder (ADHD) should be dividuals of comparable mental age. Schizophrenia. Schizophrenia with childhood onset usually develops after a period of normal, or near normal, development. A prodromal state has been described in which so- cial impairment and atypical interests and beliefs occur, which could be confused with the social deficits seen in autism spectrum disorder. Hallucinations and delusions, which are defining features of schizophrenia, are not features of autism spectrum disorder. How- ever, clinicians must take into account the potential for individuals with autism spectrum disorder to be concrete in their interpretation of questions regarding the key features of schizophrenia (e.g., ”Do you hear voices when no one is there?” ”Yes [on the radio]”). Autism spectrum disorder is frequently associated with intellectual impairment and struc- tural language disorder (i.e., an inability to comprehend and construct sentences with proper grammar), which should be noted under the relevant specifiers when applicable. Many in- dividuals with autism spectrum disorder have psychiatric symptoms that do not form part of the diagnostic criteria for the disorder (about 70% of individuals with autism spectrum dis- order may have one comorbid mental disorder, and 40% may have two or more comorbid mental disorders). When criteria for both ADHD and autism spectrum disorder are met, both diagnoses should be given. This same principle applies to concurrent diagnoses of autism spectrum disorder and developmental coordination disorder, anxiety disorders, depressive disorders, and other comorbid diagnoses. Among individuals who are nonverbal or have language deficits, observable signs such as changes in sleep or eating and increases in chal- lenging behavior‘should trigger an evaluation for anxiety or depression. Specific learning dif- ficulties (literacy and numeracy) are common, as is developmental coordination disorder. Medical conditions commonly associated with autism spectrum disorder should be noted under the ”associated with a known medical /genetic or environmental/ acquired condition” specifier. Such medical conditions include epilepsy, sleep problems, and constipation. Avoidant-restrictive food intake disorder is a fairly frequent presenting feature of autism spectrum disorder, and extreme and narrow food preferences may persist. A. A persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development, as characterized by (1) and/or (2): 1. Inattention: Six (or more) of the following symptoms have persisted for at least 6 months to a degree that is inconsistent with developmental level and that nega- tively impacts directly on social and academic/occupational activities: Note: The symptoms are not solely a manifestation of oppositional behavior, defi- ance, hostility, or failure to understand tasks or instructions. For older adolescents and adults (age 17 and older), at least five symptoms are required. a. O_ften fails to give close attention to details or makes careless mistakes in schoolwork, at work, or during other activities (e.g., overlooks or misses details, work is inaccurate). b. Often has difficulty sustaining attention in tasks or play activities (e.g., has diffi- culty remaining focused during lectures, conversations, or lengthy reading). 0. Often does not seem to listen when spoken to directly (e.g., mind seems else- where, even in the absence of any obvious distraction). d. Often does not follow through on instructions and fails to finish schoolwork, chores, or duties in the workplace (e.g., starts tasks but quickly loses focus and is easily sidetracked). e. Often has difficulty organizing tasks and activities (e.g., difficulty managing se- quential tasks; difficulty keeping materials and belongings in order; messy, dis- organized work; has poor time management; fails to meet deadlines). f. Often avoids, dislikes, or is reluctant to engage in tasks that require sustained mental effort (e.g., schoolwork or homework; for older adolescents and adults, preparing reports, completing forms, reviewing lengthy papers). 9. Often loses things necessary for tasks or activities (e.g., school materials, pen- cils, books, tools, wallets, keys, paperwork, eyeglasses, mobile telephones). h. Is often easily distracted by extraneous stimuli (for older adolescents and adults, may include unrelated thoughts). i. ls often forgetful in daily activities (e.g., doing chores, running errands; for older adolescents and adults, returning calls, paying bills, keeping appointments). 2. Hyperactivity and impulsivity: Six (or more) of the following symptoms have per- sisted for at least 6 months to a degree that is inconsistent with developmental level and that negatively impacts directly on social and academic/occupational activities: Note: The symptoms are not solely a manifestation of oppositional behavior, defi- ance, hostility, or a failure to understand tasks or instructions. For older adolescents and adults (age 17 and older), at least five symptoms are required. a. Often fidgets with or taps hands or feet or squirms in seat. b. Often leaves seat in situations when remaining seated is expected (e.g., leaves his or her place in the classroom, in the office or other workplace, or in other situations that require remaining in place). 0. Often runs about or climbs in situations where it is inappropriate. (Note: In ad- olescents or adults, may be limited to feeling restless.) d. Often unable to play or engage in leisure activities quietly. 6. Is often “on the go," acting as if “driven by a motor” (e.g., is unable to be or un- comfortable being still for extended time, as in restaurants, meetings; may be experienced by others as being restless or difficult to keep up with). f. Often talks excessively.g. Often blurts out an answer before a question has been completed (e.g., com- pletes people’s sentences; cannot wait for turn in conversation). h. Often has difficulty waiting his or her turn (e.g., while waiting in line). i. Often interrupts or intrudes on others (e.g., butts into conversations. games, or mission; for adolescents and adults, may intrude into or take over what others are doing). . Several inattentive or hyperactive-impulsive symptoms were present prior to age 12 years. . Several inattentive or hyperactive-impulsive symptoms are present in two or more set- tings (e.g., at home, school, or work; with friends or relatives; in other activities). . There is clear evidence that the symptoms interfere with, or reduce the quality of, so- cial, academic, or occupational functioning. . The symptoms do not occur exclusively during the course of schizophrenia or another psychotic disorder and are not better explained by another mental disorder (e.g., mood disorder, anxiety disorder, dissociative disorder, personality disorder, substance intox- ication or withdrawal). Specify whether: 314.01 (F90.2) Combined presentation: If both Criterion A1 (inattention) and Crite- rion A2 (hyperactivity-impulsivity) are met for the past 6 months. 314.00 (F90.0) Predominantly inattentive presentation: If Criterion A1 (inattention) is met but Criterion A2 (hyperactivity-impulsivity) is not met for the past 6 months. 314.01 (F90.1) Predominantly hyperactivefimpulsive presentation: If Criterion A2 (hy- peractivity-impulsivity) is met and Criterion A1 (inattention) is not met for the past 6 months. Specify if: in partial remission: When full criteria were previously met, fewer than the full criteria have been met for the past 6 months, and the symptoms still result in impairment in social, academic, or occupational functioning. Specify current severity:Mild: Few, it any, symptoms in excess of those required to make the diagnosis are present, and symptoms result in no more than minor impairments in social or occupa- tional functioning. Moderate: Symptoms or functional impairment between “mild" and “severe" are present. Severe: Many symptoms in excess of those required to make the diagnosis, or several symptoms that are particularly severe, are present, or the symptoms result in marked impairment ih social or occupational functioning. The essential feature of attention-deficit/hyperactivity disorder (ADHD) is a persistent pattern of inattention and / or hyperactivity-impulsivity that interferes with functioning or development. Inattention manifests behaviorally in ADHD as wandering off task, lacking persistence, having difficulty sustaining focus, and being disorganized and is not due to defiance or lack of comprehension. Hyperactivity refers to excessive motor activity (such as a child running about) when it is not appropriate, or excessive fidgeting, tapping, or talk- ativeness. In adults, hyperactivity may manifest as extreme restlessness or wearing others out with their activity. Impulsivity refers to hasty actions that occur in the moment without forethought and that have high potential for harm to the individual (e.g., darting into the street without looking). Impulsivity may reflect a desire for immediate rewards or an in- ability to delay gratification. Impulsive behaviors may manifest as social intrusiveness (e.g., interrupting others excessively) and / or as making important decisions without con- sideration of long—term consequences (e.g., taking a job without adequate information). ADHD begins in childhood. The requirement that several symptoms be present before age 12 years conveys the importance of a substantial clinical presentation during child- hood. At the same time, an earlier age at onset is not specified because of difficulties in es- tablishing precise childhood onset retrospectively. Adult recall of childhood symptoms tends to be unreliable, and it is beneficial to obtain ancillary information. Manifestations of the disorder must be present in more than one setting (e.g., home and school, work). Confirmation of substantial symptoms across settings typically cannot be done accurately without consulting informants who have seen the individual in those set- tings. Typically, symptoms vary depending on context within a given setting. Signs of the disorder may be minimal or absent when the individual is receiving frequent rewards for appropriate behavior, is under close supervision, is in a novel setting, is engaged in espe- cially interesting activities, has consistent external stimulation (e.g., via electronic screens), or is interacting in one-on-one situations (e.g., the clinician‘s office). Mild delays in language, motor, or social development are not specific to ADHD but often co- occur. Associated features may include low frustration tolerance, irritability, or mood lability. Even in the absence of a specific learning disorder, academic or work performance is often im- paired. Inattentive behavior is associated with various underlying cognitive processes, and in- dividuals with ADHD may exhibit cognitive problems on tests of attention, executive function, or memory, although these tests are not sufficiently sensitive or specific to serve as di- agnostic indices. By early adulthood, ADHD is associated with an increased risk of suicide at- tempt, primarily when comorbid with mood, conduct, or substance use disorders. No biological marker is diagnostic for ADHD. As a group, compared with peers, chil— dren with ADHD display increased slow wave electroencephalograms, reduced total brain volume on magnetic resonance imaging, and possibly a delay in posterior to anterior cortical maturation, but these findings are not diagnostic. In the uncommon cases where there is a known genetic cause (e.g., Fragile X syndrome, 22q11 deletion syndrome), the ADHD presentation should still be diagnosed.Population surveys suggest that ADHD occurs in most cultures in about 5% of children and about 2.5% of adults. Many parents first observe excessive motor activity when the child is a toddler, but symp- toms are difficult to distinguish from highly variable normative behaviors before age 4 years. ADHD is most often identified during elementary school years, and inattention be- comes more prominent and impairing. The disorder is relatively stable through early ad- olescence, but some individuals have a worsened course with development of antisocial behaviors. In most individuals with ADHD, symptoms of motoric hyperactivity become less obvious in adolescence and adulthood, but difficulties with restlessness, inattention, poor planning, and impulsivity persist. A substantial proportion of children with ADHD remain relatively impaired into adulthood. In preschool, the main manifestation is hyperactivity. Inattention becomes more prom- inent during elementary school. During adolescence, signs of hyperactivity (e.g., running and climbing) are less common and may be confined to fidgetiness or an inner feeling of jitteriness, restlessness, or impatience. In adulthood, along with inattention and restless- ness, impulsivity may remain problematic even when hyperactivity has diminished. Temperamental. ADHD is associated with reduced behavioral inhibition, effortful con- trol, or constraint; negative emotionality; and/ or elevated novelty seeking. These traits may predispose some children to ADHD but are not specific to the disorder. Environmental. Very low birth weight (less than 1,500 grams) conveys a two- to three- fold risk for ADHD, but most children with low birth weight do not develop ADHD. Al- though ADHD is correlated with smoking during pregnancy, some of this association reflects common genetic risk. A minority of cases may be related to reactions to aspects of diet. There may be a history of child abuse, neglect, multiple foster placements, neurotoxin exposure (e.g., lead), infections (e.g., encephalitis), or alcohol exposure in utero. Exposure to environmental toxicants has been correlated with subsequent ADHD, but it is not known whether these associations are causal. Genetic and physiological. ADHD is elevated in the first-degree biological relatives of individuals with ADHD. The heritability of ADHD is substantial. While specific genes have been correlated with ADHD, they are neither necessary nor sufficient causal factors. Visual and hearing impairments, metabolic abnormalities, sleep disorders, nutritional de- ficiencies, and epilepsy should be considered as possible influences on ADHD symptoms. ADHD is not associated with specific physical features, although rates of minor phys- ical anomalies (e.g., hypertelorism, highly arched palate, low-set ears) may be relatively elevated. Subtle motor delays and other neurological soft signs may occur. (Note that marked co-occurring clumsiness and motor delays should be coded separately [e.g., de- velopmental coordination disorder].) Course modifiers. Family interaction patterns in early childhood are unlikely to cause ADHD but may influence its course or contribute to secondary development of conduct problems. Differences in ADHD prevalence rates across regions appear attributable mainly to differ- ent diagnostic and methodological practices. However, there also may be cultural varia- tion in attitudes toward or interpretations of children’s behaviors. Clinical identification rates in the United States for African American and Latino populations tend to be lower than for Caucasian populations. Informant symptom ratings may be influenced by cul- tural group of the child and the informant, suggesting that culturally appropriate practices are relevant in assessing ADHD. ADHD is more frequent in males than in females in the general population, with a ratio of approximately 221 in children and 1.621 in adults. Females are more likely than males to present primarily with inattentive features. ADHD is associated with reduced school performance and academic attainment, social re- jection, and, in adults, poorer occupational performance, attainment, attendance, and higher probability of unemployment as well as elevated interpersonal conflict. Children with ADHD are significantly more likely than their peers without ADHD to develop con- duct disorder in adolescence and antisocial personality disorder in adulthood, conse— quently increasing the likelihood for substance use disorders and incarceration. The risk of subsequent substance use disorders is elevated, especially when conduct disorder or an- tisocial personality disorder develops. Individuals with ADHD are more likely than peers to be injured. Traffic accidents and violations are more frequent in drivers with ADHD. There may be an elevated likelihood of obesity among individuals with ADHD. Inadequate or variable self-application to tasks that require sustained effort is often in- terpreted by others as laziness, irresponsibility, or failure to cooperate. Family relation- ships may be characterized by discord and negative interactions. Peer relationships are often disrupted by peer rejection, neglect, or teasing of the individual with ADHD. On av- erage, individuals with ADHD obtain less schooling, have poorer vocational achievement, and have reduced intellectual scores than their peers, although there is great variability. In its severe form, the disorder is markedly impairing, affecting social, familial, and scholas- tic/occupational adjustment. Academic deficits, school-related problems, and peer neglect tend to be most associ— ated with elevated symptoms of inattention, whereas peer rejection and, to a lesser extent, accidental injury are most salient with marked symptoms of hyperactivity or impulsivity. Oppositional defiant disorder. Individuals with oppositional defiant disorder may re- sist work or school tasks that require self—application because they resist conforming to others' demands. Their behavior is characterized by negativity, hostility, and defiance. These symptoms must be differentiated from aversion to school or mentally demanding tasks due to difficulty in sustaining mental effort, forgetting instructions, and impulsivity in individuals with ADHD. Complicating the differential diagnosis is the fact that some individuals with ADHD may develop secondary oppositional attitudes toward such tasks and devalue their importance. Intermittent explosive disorder. ADHD and intermittent explosive disorder share high levels of impulsive behavior. However, individuals with intermittent explosive disorder show serious aggression toward others, which is not characteristic of ADHD, and they do not experience problems with sustaining attention as seen in ADHD. In addition, intermit- tent explosive disorder is rare in childhood. Intermittent explosive disorder may be diag- nosed in the presence of ADHD. Other neurodevelopmental disorders. The increased motoric activity that may occur in ADHD must be distinguished from the repetitive motor behavior that characterizes stereo- typic movement disorder and some cases of autism spectrum disorder. In stereotypic movement disorder, the motoric behavior is generally fixed and repetitive (e.g., body rock- ing, self—biting), whereas the fidgetiness and restlessness in ADHD are typically general- ized and not characterized by repetitive stereotypic movements. In Tourette’s disorder, frequent multiple tics can be mistaken for the generalized fidgetiness of ADHD. Prolonged observation may be needed to differentiate fidgetiness from bouts of multiple tics. Specific learning disorder. Children with specific learning disorder may appear inat- tentive because of frustration, lack of interest, or limited ability. However, inattention in individuals with a specific learning disorder who do not have ADHD is not impairing out- side of academic work. Intellectual disability (intellectual developmental disorder). Symptoms of ADHD are common among children placed in academic settings that are inappropriate to their intel- lectual ability. In such cases, the symptoms are not evident during non-academic tasks. A diagnosis of ADHD in intellectual disability requires that inattention or hyperactivity be excessive for mental age. Autism spectrum disorder. Individuals with ADHD and those with autism spectrum disorder exhibit inattention, social dysfunction, and difficult-to-manage behavior. The so- cial dysfunction and peer rejection seen in individuals with ADHD must be distinguished from the social disengagement, isolation, and indifference to facial and tonal communica- tion cues seen in individuals with autism spectrum disorder. Children with autism spec— trum disorder may display tantrums because of an inability to tolerate a change from their expected course of events. In contrast, children with ADHD may misbehave or have a tan- trum during a major transition because of impulsivity or poor self—control. Reactive attachment disorder. Children with reactive attachment disorder may show social disinhibition, but not the full ADHD symptom cluster, and display other features such as a lack of enduring relationships that are not characteristic of ADHD. Anxiety disorders. ADHD shares symptoms of inattention with anxiety disorders. Indi- viduals with ADHD are inattentive because of their attraction to external stimuli, new activities, or preoccupation with enjoyable activities. This is distinguished from the inat- tention due to worry and rumination seen in anxiety disorders. Restlessness might be seen in anxiety disorders. However, in ADHD, the symptom is not associated with worry and rumination. Depressive disorders. Individuals with depressive disorders may present with inabil- ity to concentrate. However, poor concentration in mood disorders becomes prominent only during a depressive episode. Bipolar disorder. Individuals with bipolar disorder may have increased activity, poor concentration, and increased impulsivity, but these features are episodic, occurring sev- eral days at a time. In bipolar disorder, increased impulsivity or inattention is accompa- nied by elevated mood, grandiosity, and other specific bipolar features. Children with ADHD may show significant changes in mood within the same day; such lability is dis— tinct from a manic episode, which must last 4 or more days to be a clinical indicator of bi- polar disorder, even in children. Bipolar disorder is rare in preadolescents, even when severe irritability and anger are prominent, whereas ADHD is common among children and adolescents who display excessive anger and irritability. Disruptive mood dysregulation disorder. Disruptive mood dysregulation disorder is characterized by pervasive irritability, and intolerance of frustration, but impulsiveness and disorganized attention are not essential features. However, most children and adoles- cents with the disorder have symptoms that also meet criteria for ADHD, which is diag- nosed separately. Substance use disorders. Differentiating ADHD from substance use disorders may be problematic if the first presentation of ADHD symptoms follows the onset of abuse or fre- quent use. Clear evidence of ADHD before substance misuse from informants or previous records may be essential for differential diagnosis. Personality disorders. In adolescents and adults, it may be difficult to distinguish ADHD from borderline, narcissistic, and other personality disorders. All these disorders tend to share the features of disorganization, social intrusiveness, emotional dysregulation, and cognitive dysregulation. However, ADHD is not characterized by fear of abandonment, self—injury, extreme ambivalence, or other features of personality disorder. It may take extended clinical observation, informant interview, or detailed history to distinguish im- pulsive, socially intrusive, or inappropriate behavior from narcissistic, aggressive, or dom- ineering behavior to make this differential diagnosis. Psychotic disorders. ADHD is not diagnosed if the symptoms of inattention and hyperac- tivity occur exclusively during the course of a psychotic disorder. Medication-induced symptoms of ADHD. Symptoms of inattention, hyperactivity, or impulsivity attributable to the use of medication (e.g., bronchodilators, isoniazid, neuro- leptics [resulting in akathisia], thyroid replacement medication) are diagnosed as other specified or unspecified other (or unknown) substance—related disorders. Neurocognitive disorders. Early major neurocognitive disorder (dementia) and/or mild neurocognitive disorder are not known to be associated with ADHD but may present with similar clinical features. These conditions are distinguished from ADHD by their late onset. In clinical settings, comorbid disorders are frequent in individuals whose symptoms meet criteria for ADHD. In the general population, oppositional defiant disorder co-occurs with ADHD in approximately half of children with the combined presentation and about a quarter with the predominantly inattentive presentation. Conduct disorder co-occurs in about a quarter of children or adolescents with the combined presentation, depending on age and setting. Most children and adolescents with disruptive mood dysregulation dis- order have symptoms that also meet criteria for ADHD; a lesser percentage of children der. Specific learning disorder commonly co-occurs with ADHD. Anxiety disorders and major depressive disorder occur in a minority of individuals with ADHD but more often than in the general population. Intermittent explosive disorder occurs in a minority of adults with ADHD, but at rates above population levels. Although substance use disor— ders are relatively more frequent among adults with ADHD in the general population, the disorders are present in only a minority of adults with ADHD. In adults, antisocial and other personality disorders may co-occur with ADHD. Other disorders that may co-occur with ADHD include obsessive-compulsive disorder, tic disorders, and autism spectrum disorder. 314.01 (F90.8)This category applies to presentations in which symptoms characteristic of attention- cial, occupational or other important areas of functioning predominate but do not meet the full criteria for attention-deticit/hyperactivity disorder or any of the disorders in the neuro- developmental disorders diagnostic class. The other specified attention-deficit/hyperactiv- ity disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for attention-deficit/ hyperactivity disorder or any specific neurodevelopmental disorder. This is done by re- cording “other specified attention-deficit/hyperactivity disorder" followed by the specific reason (e.g., ”with insufficient inattention symptoms"). 314.01 (F90.9)This category applies to presentations in which symptoms characteristic of attention- cial, occupational, or other important areas of functioning predominate but do not meet the fulI criteria for attention-deficit/hyperactivity disorder or any of the disorders in the neuro- developmental disorders diagnostic class. The unspecified attention-deticit/hyperactivity disorder category is used in situations in which the clinician chooses not to specify the rea- son that the criteria are not met for attention-deficit/hyperactivity disorder or for a specific neurodevelopmental disorder, and includes presentations in which there is insufficient in- formation to make a more specific diagnosis. A. Difficulties learning and using academic skills, as indicated by the presence of at least one of the following symptoms that have persisted for at least 6 months, despite the provision of interventions that target those difficulties: 1. Inaccurate or slow and effortful word reading (e.g., reads single words aloud incor- rectly or slowly and hesitantly, frequently guesses words, has difficulty sounding out words). 2. Difficulty understanding the meaning of what is read (e.g., may read text accurately but not understand the sequence, relationships, inferences, or deeper meanings of what is read). 3. Difficulties with spelling (e.g., may add, omit, or substitute vowels or consonants). 4. Difficulties with written expression (e.g., makes multiple grammatical or punctua- sion of ideas lacks clarity). 5. Difficulties mastering number sense, number facts, or calculation (e.g., has poor understanding of numbers, their magnitude, and relationships; counts on fingers to add singIe-digit numbers instead of recalling the math fact as peers do; gets lost in the midst of arithmetic computation and may switch procedures). 6. Difficulties with mathematical reasoning (e.g., has severe difficulty applying math- ematical concepts, facts, or procedures to solve quantitative problems). The affected academic skills are substantially and quantifiably below those expected for the individual’s chronological age. and cause significant interference with academic or occupatiohal performance, or with activities of daily living, as confirmed by individu- assessment. For individuals age 17 years and older, a documented history of impairing learning difficulties may be substituted for the standardized assessment. . The learning difficulties begin during schooI-age years but may not become fully man- itest until the demands for those affected academic skills exceed the individual’s lim- ited capacities (e.g., as in timed tests. reading or writing lengthy complex reports for a tight deadline, excessively heavy academic loads). . The learning difficulties are not better accounted for by intellectual disabilities, uncor- rected visual or auditory acuity, other mental or neurological disorders, psychosocial adversity, lack of proficiency in the language of academic instruction, or inadequate educational instruction. Note: The four diagnostic criteria are to be met based on a clinical synthesis of the indi- vidual’s history (developmental, medical, family, educational), school reports, and psycho- educational assessment. Coding note: Specify all academic domains and subskills that are impaired. When more than one domain is impaired, each one should be coded individually according to the fol- lowing specifiers. Specify if: 315.00 (F81.0) With impairment in reading:Note: Dyslexia is an alternative term used to refer to a pattern of learning difficulties characterized by problems with accurate or fluent word recognition, poor decoding, and poor spelling abilities. lf dyslexia is used to specify this particular pattern of dif- ficulties, it is important also to specify any additional difficulties that are present, such as difficulties with reading comprehension or math reasoning. 315.2 (F81.81) With impairment in written expression:Clarity or organization of written expression 315.1 (F81.2) With impairment in mathematics: Memorization of arithmetic factsNote: Dyscalculia is an alternative term used to refer to a pattern of difficulties char- acterized by problems processing numerical information, learning arithmetic facts, and performing accurate or fluent calculations. If dyscalculia is used to specify this particular pattern of mathematic difficulties, it is important also to specify any addi- tional difficulties that are present, such as difficulties with math reasoning or word rea- soning accuracy. Specify current severity:Miid: Some difficulties learning skills in one or two academic domains, but of mild enough severity that the individual may be able to compensate or function well when provided with appropriate accommodations or support services, especially during the school years. Moderate: Marked difficulties learning skills in one or more academic domains, so that the individual is unlikely to become proficient without some intervals of intensive and specialized teaching during the school years. Some accommodations or supportive services at least part of the day at school, in the workplace, or at home may be needed to complete activities accurately and efficiently. Severe: Severe difficulties learning skills, affecting several academic domains, so that the individual is unlikely to learn those skills without ongoing intensive individualized and specialized teaching for most of the school years. Even with an array of appropri- ate accommodations or services at home, at school, or in the workplace, the individual may not be able to complete all activities efficiently. Each impaired academic domain and subskill of specific learning disorder should be re- corded. Because of ICD coding requirements, impairments in reading, impairments in writ- ten expression, and impairments in mathematics, with their corresponding impairments in subskills, must be coded separately. For example, impairments in reading and mathematics and impairments in the subskills of reading rate or fluency, reading comprehension, accu- rate or fluent calculation, and accurate math reasoning would be coded and recorded as 315.00 (F810) specific learning disorder with impairment in reading, with impairment in reading rate or fluency and impairment in reading comprehension; 315.1 (F812) specific learning disorder with impairment in mathematics, with impairment in accurate or fluent calculation and impairment in accurate math reasoning. Specific learning disorder is a neurodevelopmental disorder with a biological origin that is the basis for abnormalities at a cognitive level that are associated with the behavioral signs of the disorder. The biological origin includes an interaction of genetic, epigenetic, and en- vironmental factors, which affect the brain’s ability to perceive or process verbal or non- verbal information efficiently and accurately. One essential feature of specific learning disorder is persistent difficulties learning key- stone academic skills (Criterion A), with onset during the years of formal schooling (i.e., the de- velopmental period). Key academic skills include reading of single words accurately and fluently, reading comprehension, written expression and spelling, arithmetic calculation, and mathematical reasoning (solving mathematical problems). In contrast to talking or walking, which are acquired developmental milestones that emerge with brain maturation, academic skills (e.g., reading, spelling, writing, mathematics) have to be taught and learned explicitly. Specific learning disorder disrupts the normal pattern of learning academic skills; it is not sirn- ply a consequence of lack of opportunity of learning or inadequate instruction. Difficulties mastering these key academic skills may also impede learning in other academic subjects (e.g., history, science, social studies), but those problems are attributable to difficulties learning the underlying academic skills. Difficulties learning to map letters with the sounds of one’s lan- guage—to read printed words (often called dyslexia)—is one of the most common manifesta- tions of specific learning disorder. The learning difficulties manifest as a range of observable, descriptive behaviors or symptoms (as listed in Criteria A1—A6). These clinical symptoms may be observed, probed by means of the clinical interview, or ascertained from school reports, rat- ing scales, or descriptions in previous educational or psychological assessments. The learning difficulties are persistent, not transitory. In children and adolescents, persistence is defined as restricted progress in learning (i.e., no evidence that the individual is catching up with class- mates) for at least 6 months despite the provision of extra help at home or school. For example, difficulties learning to read single words that do not fully or rapidly remit with the provision of learning disorder. Evidence of persistent learning difficulties may be derived from cumulative school reports, portfolios of the child’s evaluated work, curriculum—based measures, or clinical interview. In adults, persistent difficulty refers to ongoing difficulties in literacy or numeracy skills that manifest during childhood or adolescence, as indicated by cumulative evidence from school reports, evaluated portfolios of work, or previous assessments. A second key feature is that the individual’s performance of the affected academic skills is well below average for age (Criterion B). One robust clinical indicator of difficulties learning academic skills is low academic achievement for age or average achievement that is sustain- able only by extraordinarily high levels of effort or support. In children, the low academic skills teacher’s grades or ratings). Another clinical indicator, particularly in adults, is avoidance of activities that require the academic skills. Also in adulthood, low academic skills interfere with port or report by others). However, this criterion also requires psychometric evidence from an individually administered, psychometrically sound and culturally appropriate test of aca- demic achievement that is norm-referenced or criterion-referenced. Academic skills are dis- tributed along a continuum, so there is no natural cutpoint that can be used to differentiate individuals with and without specific learning disorder. Thus, any threshold used to specify what constitutes significantly low academic achievement (e.g., academic skills well below age expectation) is to a large extent arbitrary. Low achievement scores on one or more standard- ized tests or subtests within an academic domain (i.e., at least 1.5 standard deviations [SD] be- low the population mean for age, which translates to a standard score of 78 or less, which is below the 7th percentile) are needed for the greatest diagnostic certainty. However, precise scores will vary according to the particular standardized tests that are used. On the basis of clinical judgment, a more lenient threshold may be used (e.g., 1.0—2.5 SD below the pop- ulation mean for age), when learning difficulties are supported by converging evidence from clinical assessment, academic history, school reports, or test scores. Moreover, since standardized tests are not available in all languages, the diagnosis may then be based in part on clinical judgment of scores on available test measures. A third core feature is that the learning difficulties are readily apparent in the early school years in most individuals (Criterion C). However, in others, the learning difficulties may not manifest fully until later school years, by which time learning demands have in- creased and exceed the individual’s limited capacities. Another key diagnostic feature is that the learning difficulties are considered ”spe- cific,” for four reasons. First, they are not attributable to intellectual disabilities (intellec- hearing or vision disorders, or neurological or motor disorders) (Criterion D). Specific els of intellectual functioning (generally estimated by an IQ score of greater than about 70 [:5 points allowing for measurement error]). The phrase ”unexpected academic under- achievement” is often cited as the defining characteristic of specific learning disorder in that the specific learning disabilities are not part of a more general learning difficulty as manifested in intellectual disability or global developmental delay. Specific learning dis- order may also occur in individuals identified as intellectually "gifted." These individuals may be able to sustain apparently adequate academic functioning by using compensatory strategies, extraordinarily high effort, or support, until the learning demands or assess- ment procedures (e.g., timed tests) pose barriers to their demonstrating their learning or accomplishing required tasks. Second, the learning difficulty cannot be attributed to more general external factors, such as economic or environmental disadvantage, chronic absen- teeism, or lack of education as typically provided in the individual’s community context. Third, the learning difficulty cannot be attributed to a neurological (e.g., pediatric stroke) or motor disorders or to vision or hearing disorders, which are often associated with prob- lems learning academic skills but are distinguishable by presence of neurological signs. Finally, the learning difficulty may be restricted to one academic skill or domain (e.g., read- ing single words, retrieving or calculating number facts). Comprehensive assessment is required. Specific learning disorder can only be diagnosed after formal education starts but can be diagnosed at any point afterward in children, adoles- cents, or adults, providing there is evidence of onset during the years of formal schooling (i.e., the developmental period). No single data source is sufficient for a diagnosis of specific leam- ing disorder. Rather, specific learning disorder is a clinical diagnosis based on a synthesis of the individual’s medical, developmental, educational, and family history; the history of the learning difficulty, including its previous and current manifestation; the impact of the diffi- culty on academic, occupational, or social functioning; previous or current school reports; portfolios of work requiring academic skills; curriculum-based assessments; and previous or current scores from individual standardized tests of academic achievement. If an intellectual, sensory, neurological, or motor disorder is suspected, then the clinical assessment for specific learning disorder should also include methods appropriate for these disorders. Thus, compre- hensive assessment will involve professionals with expertise in specific learning disorder and psychological/cognitive assessment. Since specific learning disorder typically persists into adulthood, reassessment is rarely necessary, unless indicated by marked changes in the leam- ing difficulties (amelioration or worsening) or requested for specific purposes. Specific learning disorder is frequently but not invariably preceded, in preschool years, by delays in attention, language, or motor skills that may persist and co-occur with specific learning disorder. An uneven profile of abilities is common, such as above-average abili- ties in drawing, design, and other visuospatial abilities, but slow, effortful, and inaccurate reading and poor reading comprehension and written expression. Individuals with spe- logical tests of cognitive processing. However, it remains unclear whether these cognitive abnormalities are the cause, correlate, or consequence of the learning difficulties. Also, al- though cognitive deficits associated with difficulties learning to read words are well doc- umented, those associated with other manifestations of specific learning disorder (e.g., reading comprehension, arithmetic computation, written expression) are underspecified or unknown. Moreover, individuals with similar behavioral symptoms or test scores are found to have a variety of cognitive deficits, and many of these processing deficits are also found in other neurodevelopmental disorders (e.g., attention-deficit/hyperactivity disor- der [ADHD], autistic spectrum disorder, communication disorders, developmental coor- dination disorder). Thus, assessment of cognitive processing deficits is not required for diagnostic assessment. Specific learning disorder is associated with increased risk for sui- cidal ideation and suicide attempts in children, adolescents, and adults. There are no known biological markers of specific learning disorder. As a group, indi- viduals with the disorder show circumscribed alterations in cognitive processing and brain structure and function. Genetic differences are also evident at the group level. But cognitive testing, neuroimaging, or genetic testing are not useful for diagnosis at this time. The prevalence of specific learning disorder across the academic domains of reading, writ- ing, and mathematics is 5%—15% among school—age children across different languages and cultures. Prevalence in adults is unknown but appears to be approximately 4%. Onset, recognition, and diagnosis of specific learning disorder usually occurs during the elementary school years when children are required to learn to read, spell, write, and learn mathematics. However, precursors such as language delays or deficits, difficulties in rhyming or couhting, or difficulties with fine motor skills required for writing commonly occur in early childhood before the start of formal schooling. Manifestations may be be- havioral (e.g., a reluctance to engage in learning; oppositional behavior). Specific learning disorder is lifelong, but the course and clinical expression are variable, in part depending on the interactions among the task demands of the environment, the range and severity of the individual’s learning difficulties, the individual’s learning abilities, comorbidity, and the available support systems and intervention. Nonetheless, problems with reading flu- ency and comprehension, spelling, written expression, and numeracy skills in everyday life typically persist into adulthood. Changes in manifestation of symptoms occur with age, so that an individual may have a persistent or shifting array of learning difficulties across the lifespan. Examples of symptoms that may be observed among preschool-age children include a lack of interest in playing games with language sounds (e.g., repetition, rhyming), and they may have trouble learning nursery rhymes. Preschool children with specific learning disorder may frequently use baby talk, rnispronounce words, and have trouble remembering names of let- ters, numbers, or days of the week. They may fail to recognize letters in their own names and have trouble learning to count. Kindergarten—age children with specific learning disorder may be unable to recognize and write letters, may be unable to write their own names, or may use invented spelling. They may have trouble breaking down spoken words into syllables (e.g., ”cowboy” into ”cow" and ”boy”) and trouble recognizing words that rhyme (e.g., cat, bat, hat). Kindergarten-age children also may have trouble connecting letters with their sounds (e.g., let- ter b makes the sound / b / ) and may be unable to recognize phonemes (e.g., do not know which in a set of words [e.g., dog, man, car] starts with the same sound as ”cat”). children), fluent word decoding, spelling, or math facts; reading aloud is slow, inaccurate, and effortful, and some children struggle to understand the magnitude that a spoken or written number represents. Children in primary grades (grades 1—3) may continue to have problems recognizing and manipulating phonemes, be unable to read common one-sylla- ble words (such as mat or top), and be unable recognize common irregularly spelled words (e.g., said, two). They may commit reading errors that indicate problems in con- necting sounds and letters (e.g., ”big” for "got”) and have difficulty sequencing numbers and letters. Children in grades 1-3 also may have difficulty remembering number facts or arithmetic procedures for adding, subtracting, and so forth, and may complain that read- ing or arithmetic is hard and avoid doing it. Children with specific learning disorder in the middle grades (grades 4—6) may rnispronounce or skip parts of long, multisyllable words (e.g., say ”conible” for ”convertible,” ”aminal” for ”animal”) and confuse words that sound alike (e.g., ”tornado” for ”volcano”). They may have trouble remembering dates, names, and telephone numbers and may have trouble completing homework or tests on time. Children in the middle grades also may have poor comprehension with or without slow, effortful, and inaccurate reading, and they may have trouble reading small function words (e.g., that, the, an, in). They may have very poor spelling and poor written work. They may get the first part of a word correctly, then guess wildly (e.g., read ”clover” as ”clock”), and may express fear of reading aloud or refuse to read aloud. By contrast, adolescents may have mastered word decoding, but reading remains slow and effortful, and they are likely to show marked problems in reading comprehension and written expression (including poor spelling) and poor mastery of math facts or mathemat- ical problem solving. During adolescence and into adulthood, individuals with specific learning disorder may continue to make numerous spelling mistakes and read single words and connected text slowly and with much effort, with trouble pronouncing multi- syllable words. They may frequently need to reread material to understand or get the main point and have trouble making inferences from written text. Adolescents and adults may avoid activities that demand reading or arithmetic (reading for pleasure, reading instruc- tions). Adults with specific learning disorder have ongoing spelling problems, slow and effortful reading, or problems making important inferences from numerical information in work-related written documents. They may avoid both leisure and work-related activ- ities that demand reading or writing or use alternative approaches to access print (e.g., text-to-speech/speech-to-text software, audiobooks, audiovisual media). An alternative clinical expression is that of circumscribed learning difficulties that per- sist across the lifespan, such as an inability to master the basic sense of number (e.g., to know which of a pair of numbers or dots represents the larger magnitude), or lack of pro— ficiency in word identification or spelling. Avoidance of or reluctance to engage in activi— ties requiring academic skills is common in children, adolescents, and adults. Episodes of severe anxiety or anxiety disorders, including somatic complaints or panic attacks, are common across the lifespan and accompany both the circumscribed and the broader ex- pression of learning difficulties. Environmental. Prematurity or very low birth weight increases the risk for specific learning disorder, as does prenatal exposure to nicotine. Genetic and physiological. Specific learning disorder appears to aggregate in families, particularly when affecting reading, mathematics, and spelling. The relative risk of spe- cific learning disorder in reading or mathematics is substantially higher (e.g., 4—8 times and 5—10 times higher, respectively) in first-degree relatives of individuals with these learning difficulties compared with those without them. Family history of reading diffi- disorder in offspring, indicating the combined role of genetic and environmental factors. There is high heritability for both reading ability and reading disability in alphabetic and nonalphabetic languages, including high heritability for most manifestations of learning abil- ities and disabilities (e.g., heritability estimate values greater than 0.6). Covariation between various manifestations of learning difficulties is high, suggesting that genes related to one presentation are highly correlated with genes related to another manifestation. Course modifiers. Marked problems with inattentive behavior in preschool years is pre- dictive of later difficulties in reading and mathematics (but not necessarily specific learn- ing disorder) and nonresponse to effective academic interventions. Delay or disorders in speech or language, or impaired cognitive processing (e.g., phonological awareness, working memory, rapid serial naming) in preschool years, predicts later specific learning disorder in reading and written expression. Comorbidity with ADHD is predictive of worse mental health outcome than that associated with specific learning disorder without ADHD. Systematic, intensive, individualized instruction, using evidence-based interven- tions, may improve or ameliorate the learning difficulties in some individuals or promote the use of compensatory strategies in others, thereby mitigating the otherwise poor out— comes. Specific learning disorder occurs across languages, cultures, races, and socioeconomic conditions but may vary in its manifestation according to the nature of the spoken and written symbol systems and cultural and educational practices. For example, the cognitive processing requirements of reading and of working with numbers vary greatly across or- thographies. In the English language, the observable hallmark clinical symptom of diffi- culties learning to read is inaccurate and slow reading of single words; in other alphabetic languages that have more direct mapping between sounds and letters (e.g., Spanish, Ger— man) and in non-alphabetic languages (e.g., Chinese, Japanese), the hallmark feature is slow but accurate reading. In English-language learners, assessment should include con- sideration of whether the source of reading difficulties is a limited proficiency with Eng- lish or a specific learning disorder. Risk factors for specific learning disorder in English- language learners include a family history of specific learning disorder or language delay in the native language, as well as learning difficulties in English and failure to catch up with peers. If there is suspicion of cultural or language differences (e.g., as in an English- language learner), the assessment needs to take into account the individual’s language proficiency in his or her first or native language as well as in the second language (in this example, English). Also, assessment should consider the linguistic and cultural context in which the individual is living, as well as his or her educational and learning history in the original culture and language. Specific learning disorder is more common in males than in females (ratios range from about 2:1 to 3:1) and cannot be attributed to factors such as ascertainment bias, definitional or measurement variation, language, race, or socioeconomic status. Specific learning disorder can have negative functional consequences across the lifespan, including lower academic attainment, higher rates of high school dropout, lower rates of postsecondary education, high levels of psychological distress and poorer overall mental health, higher rates of unemployment and under-employment, and lower incomes. School dropout and co-occurring depressive symptoms increase the risk for poor mental health outcomes, including suicidality, whereas high levels of social or emotional support predict better mental health outcomes. Normal variations in academic attainment. Specific learning disorder is distinguished from normal variations in academic attainment due to external factors (e.g., lack of edu- cational opportunity, consistently poor instruction, learning in a second language), be— cause the learning difficulties persist in the presence of adequate educational opportunity and exposure to the same instruction as the peer group, and competency in the language of instruction, even when it is different from one’s primary spoken language. Intellectual disability (intellectual developmental disorder). Specific learning disorder differs from general learning difficulties associated with intellectual disability, because the learning difficulties occur in the presence of normal levels of intellectual functioning (i.e., IQ score of at least 70 1 5). If intellectual disability is present, specific learning disorder can be diagnosed only when the learning difficulties are in excess of those usually associated with the intellectual disability. Learning difficulties due to neurological or sensory disorders. Specific learning dis- order is distinguished from learning difficulties due to neurological or sensory disorders (e.g., pediatric stroke, traumatic brain injury, hearing impairment, Vision impairment), be- cause in these cases there are abnormal findings on neurological examination. Neurocognitive disorders. Specific learning disorder is distinguished from learning problems associated with neurodegenerative cognitive disorders, because in specific learning disorder the clinical expression of specific learning difficulties occurs during the developmental period, and the difficulties do not manifest as a marked decline from a for- mer state. Attention-deficit/hyperactivity disorder. Specific learning disorder is distinguished from the poor academic performance associated with ADHD, because in the latter condition the rather may reflect difficulties in performing those skills. However, the co-occurrence of specific learning disorder and ADHD is more frequent than expected by chance. If criteria for both disorders are met, both diagnoses can be given. Psychotic disorders. Specific learning disorder is distinguished from the academic and cognitive-processing difficulties associated with schizophrenia or psychosis, because with these disorders there is a decline (often rapid) in these functional domains. Specific learning disorder commonly co-occurs with neurodevelopmental (e.g., ADHD, communication disorders, developmental coordination disorder, autistic spectrum disor- der) or other mental disorders (e.g., anxiety disorders, depressive and bipolar disorders). These comorbidities do not necessarily exclude the diagnosis specific learning disorder but may make testing and differential diagnosis more difficult, because each of the co- occurring disorders independently interferes with the execution of activities of daily liv- ing, including learning. Thus, clinical judgment is required to attribute such impairment to learning difficulties. If there is an indication that another diagnosis could account for the difficulties learning keystone academic skills described in Criterion A, specific learning disorder should not be diagnosed. Motor Disorders,Diagnostic Criteria 315.4 (F82)A. The acquisition and execution of coordinated motor skills is substantially below that ex- pected given the individual’s chronological age and opportunity for skill learning and use. Difficulties are manifested as clumsiness (e.g., dropping or bumping into objects) as well as slowness and inaccuracy of performance of motor skills (e.g., catching an object, using scissors or cutlery, handwriting, riding a bike, or participating in sports). B. The motor skills deficit in Criterion A significantly and persistently interferes with activ- ities of daily living appropriate to chronological age (e.g., self-care and seIf-mainte- nance) and impacts academic/school productivity, prevocational and vocational activities, leisure, and play. C. Onset of symptoms is in the early developmental period. D. The motor skills deficits are not better explained by intellectual disability (intellectual devel- opmental disorder) or visual impairment and are not attributable to a neurological condi- tion affecting movement (e.g., cerebral palsy, muscular dystrophy, degenerative disorder). The diagnosis of developmental coordination disorder is made by a clinical synthesis of the history (developmental and medical), physical examination, school or workplace report, and tests. The manifestation of impaired skills requiring motor coordination (Criterion A) varies with age. Young children may be delayed in achieving motor milestones (i.e., sitting, crawling, walking), althou h many achieve typical motor milestones. They also may be delayed in de- veloping skills such as negotiating stairs, pedaling, buttoning shirts, completing puzzles, and using zippers. Even when the skill is achieved, movement execution may appear awkward, slow, or less precise than that of peers. Older children and adults may display slow speed or in- accuracy with motor aspects of activities such as assembling puzzles, building models, playing ball games (especially in teams), handwriting, typing, driving, or carrying out self—care skills. Developmental coordination disorder is diagnosed only if the impairment in motor skills significantly interferes with the performance of, or participation in, daily activities in family, social, school, or community life (Criterion B). Examples of such activities include getting dressed, eating meals with age-appropriate utensils and without mess, engaging in physical games with others, using specific tools in class such as rulers and scissors, and participating in team exercise activities at school. Not only is ability to perform these ac- tions impaired, but also marked slowness in execution is common. Handwriting compe- tence is frequently affected, consequently affecting legibility and / or speed of written output and affecting academic achievement (the impact is distinguished from specific learning difficulty by the emphasis on the motoric component of written output skills). In adults, everyday skills in education and work, especially those in which speed and accuracy are required, are affected by coordination problems. Criterion C states that the onset of symptoms of developmental coordination disorder must be in the early developmental period. However, developmental coordination disorder is typically not diagnosed before age 5 years because there is considerable variation in the age at acquisition of many motor skills or a lack of stability of measurement in early childhood (e.g., some children catch up) or because other causes of motor delay may not have fully manifested. Criterion D specifies that the diagnosis of developmental coordination disorder is made if the coordination difficulties are not better explained by visual impairment or at- tributable to a neurological condition. Thus, Visual function examination and neurological examination must be included in the diagnostic evaluation. If intellectual disability (intel- lectual developmental disorder) is present, the motor difficulties are in excess of those ex- pected for the mental age; however, no IQ cut-off or discrepancy criterion is specified. Developmental coordination disorder does not have discrete subtypes; however, indi- viduals may be impaired predominantly in gross motor skills or in fine motor skills, in- cluding handwriting skills. Other terms used to describe developmental coordination disorder include childhood dyspraxia, specific developmental disorder of motorfunction, and clumsy child syndrome. Some children with developmental coordination disorder show additional (usually sup- pressed) motor activity, such as choreiform movements of unsupported limbs or mirror movements. These ”overflow” movements are referred to as neurodevelopmental immatu rities or neurological soft signs rather than neurological abnormalities. In both current literature and clinical practice, their role in diagnosis is still unclear, requiring further evaluation. The prevalence of developmental coordination disorder in children ages 5—11 years is 5%— 6% (in children age 7 years, 1.8% are diagnosed with severe developmental coordination disorder and 3% with probable developmental coordination disorder). Males are more of- ten affected than females, with a malezfemale ratio between 2:1 and 7:1. The course of developmental coordination disorder is variable but stable at least to 1 year follow-up. Although there may be improvement in the longer term, problems with coor— dinated movements continue through adolescence in an estimated 50%—70% of children. Onset is in early childhood. Delayed motor milestones may be the first signs, or the disor- der is first recognized when the child attempts tasks such as holding a knife and fork, but- toning clothes, or playing ball games. In middle childhood, there are difficulties with motor aspects of assembling puzzles, building models, playing ball, and handwriting, as well as with organizing belongings, when motor sequencing and coordination are re- quired. In early adulthood, there is continuing difficulty in learning new tasks involving complex/automatic motor skills, including driving and using tools. Inability to take notes and handwrite quickly may affect performance in the workplace. Co-occurrence with other disorders (see the section ”Comorbidity” for this disorder) has an additional impact on presentation, course, and outcome. Environmental. Developmental coordination disorder is more common following pre- natal exposure to alcohol and in preterm and low-birth-weight children. Genetic and physiological. Impairments in underlying neurodevelopmental processes— particularly in visual-motor skills, both in visual-motor perception and spatial mentalizing— have been found and affect the ability to make rapid motoric adjustments as the complexity of the required movements increases. Cerebellar dysfunction has been proposed, but the neural basis of developmental coordination disorder remains unclear. Because of the co-occurrence of developmental coordination disorder with attention-deficit/hyperactivity disorder (ADHD), specific learning disabilities, and autism spectrum disorder, shared genetic effect has been pro- posed. However, consistent co-occurrence in twins appears only in severe cases. Course modifiers. Individuals with ADHD and with developmental coordination dis- order demonstrate more impairment than individuals with ADHD without developmen- tal coordination disorder. Developmental coordination disorder occurs across cultures, races, and socioeconomic conditions. By definition, "activities of daily living” implies cultural differences necessi— tating consideration of the context in which the individual child is living as well as whether he or she has had appropriate opportunities to learn and practice such activities. Developmental coordination disorder leads to impaired functional performance in activ- ities of daily living (Criterion B), and the impairment is increased with co-occurring con- ditions. Consequences of developmental coordination disorder include reduced participation in team play and sports; poor self—esteem and sense of self—worth; emotional duced physical activity and obesity. Motor impairments due to another medical condition. Problems in coordination may be associated with visual function impairment and specific neurological disorders (e.g., cerebral palsy, progressive lesions of the cerebellum, neuromuscular disorders). In such cases, there are additional findings on neurological examination. Intellectual disability (intellectual developmental disorder). If intellectual disability is present, motor competences may be impaired in accordance with the intellectual disabil- ity. However, if the motor difficulties are in excess of what could be accounted for by the intellectual disability, and criteria for developmental coordination disorder are met, de— velopmental codrdination disorder can be diagnosed as well. Attention-deficit/hyperactivity disorder. Individuals with ADHD may fall, bump into objects, or knock things over. Careful observation across different contexts is required to ascertain if lack of motor competence is attributable to distractibility and impulsiveness rather than to developmental coordination disorder. If criteria for both ADHD and devel- opmental coordination disorder are met, both diagnoses can be given. Autism spectrum disorder. Individuals with autism spectrum disorder may be uninter- ested in participating in tasks requiring complex coordination skills, such as ball sports, which will affect test performance and function but not reflect core motor competence. Co- occurrence of developmental coordination disorder and autism spectrum disorder is com- mon. If criteria for both disorders are met, both diagnoses can be given. Joint hypermobility syndrome. Individuals with syndromes causing hyperextensible joints (found on physical examination; often with a complaint of pain) may present with symptoms similar to those of developmental coordination disorder. Disorders that commonly co-occur with developmental coordination disorder include problems of inattention, including ADHD (the most frequent coexisting condition, with problems; and joint hypermobility syndrome. Different clusters of co-occurrence may be present (e.g., a cluster with severe reading disorders, fine motor problems, and handwriting problems; another cluster with impaired movement control and motor planning). Presence testing more difficult and may independently interfere with the execution of activities of daily living, thus requiring examiner judgment in ascribing impairment to motor skills. Diagnostic Criteria 307.3 (F98.4)A. Repetitive, seemingly driven, and apparently purposeless motor behavior (e.g., hand shaking or waving, body rocking, head banging, self-biting, hitting own body). B. The repetitive motor behavior interferes with social, academic, or other activities and may result in seIf-injury. C. Onset is in the early developmental period.D. The repetitive motor behavior is not attributable to the physiological effects of a sub- stance or neurological condition and is not better explained by another neurodevel- opmental or mental disorder (e.g., trichotillomania [hair-pulling disorder], obsessive- compulsive disorder). Specify it:Specify if:Associated with a known medical or genetic condition, neurodevelopmental dis- order, or environmental factor (e.g., Lesch-Nyhan syndrome, intellectual disability [intellectual developmental disorder], intrauterine alcohol exposure) Coding note: Use additional code to identity the associated medical or genetic condition, or neurodevelopmental disorder. Specify current severity:Mild: Symptoms are easily suppressed by sensory stimulus or distraction. Moderate: Symptoms require explicit protective measures and behavioral modification.Severe: Continuous monitoring and protective measures are required to prevent seri- ous injury. For stereotypic movement disorder that is associated with a known medical or genetic condition, neurodevelopmental disorder, or environmental factor, record stereotypic movement disorder associated with (name of condition, disorder, or factor) (e.g., stereo- typic movement disorder associated with Lesch-Nyhan syndrome). The severity of non-self-injurious stereotypic movements ranges from mild presentations that are easily suppressed by a sensory stimulus or distraction to continuous movements that markedly interfere with all activities of daily living. Self—injurious behaviors range in se- verity along various dimensions, including the frequency, impact on adaptive functioning, and severity of bodily injury (from mild bruising or erythema from hitting hand against body, to lacerations or amputation of digits, to retinal detachment from head banging). The essential feature of stereotypic movement disorder is repetitive, seemingly driven, and apparently purposeless motor behavior (Criterion A). These behaviors are often rhythmical movements of the head, hands, or body without obvious adaptive function. The movements may or may not respond to efforts to stop them. Among typically devel- oping children, the repetitive movements may be stopped when attention is directed to them or when the child is distracted from performing them. Among children with neuro- developmental disorders, the behaviors are typically less responsive to such efforts. In other cases, the individual demonstrates self—restraining behaviors (e.g., sitting on hands, wrapping arms in clothing, finding a protective device). The repertoire of behaviors is variable; each individual presents with his or her own in- dividually patterned, ”signature” behavior. Examples of non-self—injurious stereotypic movements include, but are not limited to, body rocking, bilateral flapping or rotating hand movements, flicking or fluttering fingers in front of the face, arm waving or flapping, and head nodding. Stereotyped self—injurious behaviors include, but are not limited to, re- petitive head banging, face slapping, eye poking, and biting of hands, lips, or other body parts. Eye poking is particularly concerning; it occurs more frequently among children with visual impairment. Multiple movements may be combined (e.g., cocking the head, rocking the torso, waving a small string repetitively in front of the face). Stereotypic movements may occur many times during a day, lasting a few seconds to several minutes or longer. Frequency can vary from many occurrences in a single day to several weeks elapsing between episodes. The behaviors vary in context, occurring when the individual is engrossed in other activities, when excited, stressed, fatigued, or bored. Criterion A requires that the movements be “apparently” purposeless. However, some functions may be served by the movements. For example, stereotypic movements might reduce anxiety in response to external stressors. Criterion B states that the stereotypic movements interfere with social, academic, or other activities and, in some children, may result in self—injury (or would if protective mea- sures were not used). If self—injury is present, it should be coded using the specifier. Onset of stereotypic movements is in the early developmental period (Criterion C). Criterion D states that the repetitive, stereotyped behavior in stereotypic movement disorder is not at- tributable to the‘physiological effects of a substance or neurological condition and is not better explained by another neurodevelopmental or mental disorder. The presence of stereotypic movements may indicate an undetected neurodevelopmental problem, espe- cially in children ages 1—3 years. Simple stereotypic movements (e.g., rocking) are common in young typically developing chil- dren. Complex stereotypic movements are much less common (occurring in approximately 3%—4%). Between 4% and 16% of individuals with intellectual disability (intellectual develop- mental disorder) engage in stereotypy and self-injury. The risk is greater in individuals with severe intellectual disability. Among individuals with intellectual disability living in res- idential facilities, 10%—15% may have stereotypic movement disorder with self—injury. Stereotypic movements typically begin within the first 3 years of life. Simple stereotypic move- ments are common in infancy and may be involved in acquisition of motor mastery. In chil- dren who develop complex motor stereotypies, approximately 80% exhibit symptoms before 24 months of age, 12% between 24 and 35 months, and 8% at 36 months or older. In most typ- ically developing children, these movements resolve over time or can be suppressed. Onset of complex motor stereotypies may be in infancy or later in the developmental period. Among individuals with intellectual disability, the stereotyped, self—injurious behaviors may persist for years, even though the typography or pattern of self-injury may change. Environmental. Social isolation is a risk factor for self—stimulation that may progress to stereotypic movements with repetitive self—injury. Environmental stress may also trigger stereotypic behavior. Fear may alter physiological state, resulting in increased frequency of stereotypic behaviors. Genetic and physiological. Lower cognitive functioning is linked to greater risk for stereo- typic behaviors and poorer response to interventions. Stereotypic movements are more fre- quent among individuals with moderate-to-severe/profound intellectual disability, who by Virtue of a particular syndrome (e.g., Rett syndrome) or environmental factor (e.g., an environ- ment with relatively insufficient stimulation) seem to be at higher risk for stereotypies. Repet- itive self-injurious behavior may be a behavioral phenotype in neurogenetic syndromes. For example, in Lesch-Nyhan syndrome, there are both stereotypic dystonic movements and self- mutilation of fingers, lip biting, and other forms of self—injury unless the individual is re- strained, and in Rett syndrome and Cornelia de Lange syndrome, self-injury may result from the hand-to—mouth stereotypies. Stereotypic behaviors may result from a painful medical con- dition (e.g., middle ear infection, dental problems, gastroesophageal reflux). Stereotypic movement disorder, with or without self—injury, occurs in all races and culhares. Cultural attitudes toward unusual behaviors may result in delayed diagnosis. Overall cultural tolerance and attitudes toward stereotypic movement vary and must be considered. Normal development. Simple stereotypic movements are common in infancy and early childhood. Rocking may occur in the transition from sleep to awake, a behavior that usu- ally resolves with age. Complex stereotypies are less common in typically developing children and can usually be suppressed by distraction or sensory stimulation. The indi- vidual’s daily routine is rarely affected, and the movements generally do not cause the child distress. The diagnosis would not be appropriate in these circumstances. Autism spectrum disorder. Stereotypic movements may be a presenting symptom of haviors are being evaluated. Deficits of social communication and reciprocity manifesting in autism spectrum disorder are generally absent in stereotypic movement disorder, and thus social interaction, social communication, and rigid repetitive behaviors and interests are distinguishing features. When autism spectrum disorder is present, stereotypic move- ment disorder is diagnosed only when there is self-injury or when the stereotypic behav- iors are sufficiently severe to become a focus of treatment. Tic disorders. Typically, stereotypies have an earlier age at onset (before 3 years) than do tics, which have a mean age at onset of 5—7 years. They are consistent and fixed in their pattern or topography compared with tics, which are variable in their presentation. Ste— reotypies may involve arms, hands, or the entire body, while tics commonly involve eyes, face, head, and shoulders. Stereotypies are more fixed, rhythmic, and prolonged in dura- tion than tics, which, generally, are brief, rapid, random, and fluctuating. Tics and stereo— typic movements are both reduced by distraction. Obsessive-compulsive and related disorders. Stereotypic movement disorder is dis- tinguished from obsessive-compulsive disorder (OCD) by the absence of obsessions, as well as by the nature of the repetitive behaviors. In 0CD the individual feels driven to per- form repetitive behaviors in response to an obsession or according to rules that must be ap- plied rigidly, whereas in stereotypic movement disorder the behaviors are seemingly driven but apparently purposeless. Trichotillomania (hair-pulling disorder) and excoria- tion (skin-picking) disorder are characterized by body-focused repetitive behaviors (i.e., hair pulling and skin picking) that may be seemingly driven but that are not apparently purposeless, and that may not be patterned or rhythmical. Furthermore, onset in tricho- tillomania and excoriation disorder is not typically in the early developmental period, but rather around puberty or later. Other neurological and medical conditions. The diagnosis of stereotypic movements requires the exclusion of habits, mannerisms, paroxysmal dyskinesias, and benign he- reditary chorea. A neurological history and examination are required to assess features suggestive of other disorders, such as myoclonus, dystonia, tics, and chorea. Involuntary movements associated with a neurological condition may be distinguished by their signs and symptoms. For example, repetitive, stereotypic movements in tardive dyskinesia can be distinguished by a history of chronic neuroleptic use and characteristic oral or facial dyskinesia or irregular trunk or limb movements. These types of movements do not result in self-injury. A diagnosis of stereotypic movement disorder is not appropriate for repet- itive skin picking or scratching associated with amphetamine intoxication or abuse (e.g., patients are diagnosed with substance/medication-induced obsessive-compulsive and re- lated disorder) and repetitive choreoathetoid movements associated with other neurolog- ical disorders. Stereotypic movement disorder may occur as a primary diagnosis or secondary to another disorder. For example, stereotypies are a common manifestation of a variety of neuro- genetic disorders, Such as Lesch-Nyhan syndrome, Rett syndrome, fragile X syndrome, Cornelia de Lange syndrome, and Smith-Magenis syndrome. When stereotypic move- ment disorder co-occurs with another medical condition, both should be coded. Note: A tic is a sudden, rapid, recurrent, nonrhythmic motor movement or vocalization. Tourette’s Disorder 307.23 (F952)A. Both multiple motor and one or more vocal tics have been present at some time during the illness, although not necessarily concurrently. B. The tics may wax and wane in frequency but have persisted for more than 1 year since first tic onset. C. Onset is before age 18 years.D. The disturbance is not attributable to the physiological effects of a substance (e.g., co- caine) or another medical condition (e.g., Huntington‘s disease, postviral encephalitis). Persistent (Chronic) Motor or Vocal Tic Disorder 307.22 (F95.1)A. Single or multiple motor or vocal tics have been present during the illness, but not both motor and vocal. B. The tics may wax and wane in frequency but have persisted for more than 1 year since first tic onset. C. Onset is before age 18 years.D. The disturbance is not attributable to the physiological effects of a substance (e.g., co- caine) or another medical condition (e.g., Huntington's disease, postviral encephalitis). E. Criteria have never been met for Tourette’s disorder.Specify it:Provisional Tic Disorder 307.21 (F95.0) . Single or multiple motor and/or vocal tics. . The tics have been present for less than 1 year since first tic onset. . Onset is before age 18 years.. The disturbance is not attributable to the physiological effects of a substance (e.g., co- caine) or another medical condition (e.g., Huntington's disease, postviral encephalitis). . Criteria have never been met for Tourette‘s disorder or persistent (chronic) motor or vocal tic disorder. The ”motor tics only” or ”vocal tics only” specifier is only required for persistent (chronic) motor or vocal tic disorder. Tic disorders comprise four diagnostic categories: Tourette’s disorder, persistent (chronic) motor or vocal tic disorder, provisional tic disorder, and the other specified and unspecified tic disorders. Diagnosis for any tic disorder is based on the presence of motor and / or vocal tics (Criterion A), duration of tic symptoms (Criterion B), age at onset (Criterion C), and ab- sence of any known cause such as another medical condition or substance use (Criterion D). The tic disorders are hierarchical in order (i.e., Tourette’s disorder, followed by persistent [Chronic] motor or vocal tic disorder, followed by provisional tic disorder, followed by the other specified and unspecified tic disorders), such that once a tic disorder at one level of the hierarchy is diagnosed, a lower hierarchy diagnosis cannot be made (Criterion E). Tics are sudden, rapid, recurrent, nonrhythmic motor movements or vocalizations. An individual may have various tic symptoms over time, but at any point in time, the tic rep- ertoire recurs in a characteristic fashion. Although tics can include almost any muscle group or vocalization, certain tic symptoms, such as eye blinking or throat clearing, are common across patient populations. Tics are generally experienced as involuntary but can be vol- untarily suppressed for varying lengths of time. Tics can be either simple or complex. Simple motor tics are of short duration (i.e., milli- seconds) and can include eye blinking, shoulder shrugging, and extension of the extrem- ities. Simple vocal tics include throat clearing, sniffing, and grunting often caused by contraction of the diaphragm or muscles of the oropharynx. Complex motor tics are of lon- ger duration (i.e., seconds) and often include a combination of simple tics such as simul- taneous head turning and shoulder shrugging. Complex tics can appear purposeful, such as a tic-like sexual or obscene gesture (copropmxiu) or a tic-like imitation of someone else’s movements (echopraxz'u). Similarly, complex vocal tics include repeating one’s own sounds or words (pulilalia), repeating the last—heard word or phrase (echolalia), or uttering socially unacceptable words, including Obscenities, or ethnic, racial, or religious slurs (coprolalia). Importantly, coprolalia is an abrupt, sharp bark or grunt utterance and lacks the prosody of similar inappropriate speech observed in human interactions. The presence of motor and/ or vocal tics varies across the four tic disorders (Criterion A). For Tourette’s disorder, both motor and vocal tics must be present, whereas for per- sistent (chronic) motor or vocal tic disorder, only motor or only vocal tics are present. For provisional tic disorder, motor and / or vocal tics may be present. For other specified or un- specified tic disorders, the movement disorder symptoms are best characterized as tics but are atypical in presentation or age at onset, or have a known etiology. The 1-year minimum duration criterion (Criterion B) assures that individuals diag— nosed with either Tourette’s disorder or persistent (chronic) motor or vocal tic disorder have had persistent symptoms. Tics wax and wane in severity, and some individuals may have tic-free periods of weeks to months; however, an individual who has had tic symp- toms of greater than 1 year’s duration since first tic onset would be considered to have per- sistent symptoms regardless of duration of tic-free periods. For an individual with motor and / or vocal tics of less than 1 year since first tic onset, a provisional tic disorder diagnosis can be considered. There is no duration specification for other specified and unspecified tic disorders. The onset of tics must occur prior to age 18 years (Criterion C). Tic disorders typically begin in the prepubertal period, with an average age at onset between 4 and 6 years, and with the incidence of new-onset tic disorders decreasing in the teen years. New onset of tic symptoms in adulthood is exceedingly rare and is often associated with expo- sures to drugs (e.g., excessive cocaine use) or is a result of a central nervous system insult (e.g., postviral encephalitis). Although tic onset is uncommon in teenagers and adults, it is not uncommon for adolescents and adults to present for an initial diagnostic assessment and, when carefully evaluated, provide a history of milder symptoms dating back to child- hood. New-onset abnormal movements suggestive of tics outside of the usual age range should result in evaluation for other movement disorders or for specific etiologies. Tic symptoms cannot be attributable to the physiological effects of a substance or an- other medical condition (Criterion D). When there is strong evidence from the history, physical examination, and / or laboratory results to suggest a plausible, proximal, and probable cause for a tic disorder, a diagnosis of other specified tic disorder should be used. agnosis of persistent (chronic) motor or vocal tic disorder (Criterion E). Similarly, a previ- ous diagnosis of persistent (chronic) motor or vocal tic disorder negates a diagnosis of provisional tic disorder or other specified or unspecified tic disorder (Criterion E). Tics are common in childhood but transient in most cases. The estimated prevalence of Tourette’s disorder ranges from 3 to 8 per 1,000 in school-age children. Males are more commonly affected than females, with the ratio varying from 2:1 to 4:1. A national survey in the United States estimated 3 per 1,000 for the prevalence of clinically identified cases. The frequency of identified cases was lower among African Americans and Hispanic Americans, which may be related to differences in access to care. Onset of tics is typically between ages 4 and 6 years. Peak severity occurs between ages 10 and 12 years, with a decline in severity during adolescence. Many adults with tic disorders experience diminished symptoms. A small percentage of individuals will have persis- tently severe or worsening symptoms in adulthood. Tic symptoms manifest similarly in all age groups and across the lifespan. Tics wax and wane in severity and change in affected muscle groups and vocalizations over time. As children get older, they begin to report their tics being associated with a premonitory urge—va somatic sensation that precedes the tic—and a feeling of tension reduction follow- ing the expression of the tic. Tics associated with a premonitory urge may be experienced as not completely ”involuntary” in that the urge and the tic can be resisted. An individual may also feel the need to perform a tic in a specific way or repeat it until he or she achieves the feeling that the tic has been done ”just right.” The vulnerability toward developing co-occurring conditions changes as individuals pass through the age of risk for various co-occurring conditions. For example, prepubertal children with tic disorders are more likely to experience attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), and separation anxiety disorder than are teenagers and adults, who are more likely to experience the new onset of major depressive disorder, substance use disorder, or bipolar disorder. Tem peramental. Tics are worsened by anxiety, excitement, and exhaustion and are better during calm, focused activities. Individuals may have fewer tics when engaged in schoolwork or tasks at work than when relaxing at home after school or in the evening. Stressful/exciting events (e.g., taking a test, participating in exciting activities) often make tics worse. Environmental. Observing a gesture or sound in another person may result in an indi- vidual with a tic disorder making a similar gesture or sound, which may be incorrectly perceived by others as purposeful. This can be a particular problem when the individual is interacting with authority figures (e.g., teachers, supervisors, police). Genetic and physiological. Genetic and environmental factors influence tic symptom expression and severity. Important risk alleles for Tourette’s disorder and rare genetic variants in families with tic disorders have been identified. Obstetrical complications, Older paternal age, lower birth weight, and maternal smoking during pregnancy are as- sociated with worse tic severity. Tic disorders do not appear to vary in clinical characteristics, course, or etiology by race, ethnicity, and culture. However, race, ethnicity, and culture may impact how tic disorders are perceived and managed in the family and community, as well as influencing patterns of help seeking, and choices of treatment. Males are more commonly affected than females, but there are no gender differences in the kinds of tics, age at onset, or course. Women with persistent tic disorders may be more likely to experience anxiety and depression. Functional Consequences of Tic DisordersMany individuals with mild to moderate tic severity experience no distress or impairment in functioning and may even be unaware of their tics. Individuals with more severe symp- toms generally have more impairment in daily living, but even individuals with moderate or even severe tic disorders may function well. The presence of a co-occurring condition, such as ADHD or 0CD, can have greater impact on functioning. Less commonly, tics dis- rupt functioning in daily activities and result in social isolation, interpersonal conflict, peer victimization, inability to work or to go to school, and lower quality of life. The indi- vidual also may experience substantial psychological distress. Rare complications of Tou- rette’s disorder include physical injury, such as eye injury (from hitting oneself in the face), and orthopedic and neurological injury (e.g., disc disease related to forceful head and neck movements). movement disorder. Motor stereotypies are defined as involuntary rhythmic, repetitive, purpose and stop with distraction. Examples include repetitive hand waving/rotating, arm flapping, and finger wiggling. Motor stereotypies can be differentiated from tics based on the former's earlier age at onset (younger than 3 years), prolonged duration (seconds to minutes), constant repetitive fixed form and location, exacerbation when engrossed in ac- tivities, lack of a premonitory urge, and cessation with distraction (e.g., name called or touched). Chorea represents rapid, random, continual, abrupt, irregular, unpredictable, nonstereotyped actions that are usually bilateral and affect all parts of the body (i.e., face, trunk, and limbs). The timing, direction, and distribution of movements vary from mo- ment to moment, and movements usually worsen during attempted voluntary action. Dys- tonia is the simultaneous sustained contracture of both agonist and antagonist muscles, resulting in a distorted posture or movement of parts of the body. Dystonic postures are of- ten triggered by attempts at voluntary movements and are not seen during sleep. Substance-induced and paroxysmal dyskinesias. Paroxysmal dyskinesias usually oc- cur as dystonic or choreoathetoid movements that are precipitated by voluntary move- ment or exertion and less commonly arise from normal background activity. Myoclonus. Myoclonus is characterized by a sudden unidirectional movement that is often nonrhythmic. It may be worsened by movement and occur during sleep. Myoclonus is differentiated from tics by its rapidity, lack of suppressibility, and absence of a premon- itory urge. Obsessive-compulsive and related disorders. Differentiating obsessive-compulsive behaviors from tics may be difficult. Clues favoring an obsessive-compulsive behavior in- clude a cognitive-based drive (e.g., fear of contamination) and the need to perform the ac- tion in a particular fashion a certain number of times, equally on both sides of the body, or until a ”just right" feeling is achieved. Impulse-control problems and other repetitive be- haviors, including persistent hair pulling, skin picking, and nail biting, appear more goal directed and complex than tics. Many medical and psychiatric conditions have been described as co—occurring with tic disor— ders, with ADHD and obsessive-compulsive and related disorders being particularly com- mon. The obsessive-compulsive symptoms observed in tic disorder tend to be characterized by more aggressive symmetry and order symptoms and poorer response to pharmacotherapy with selective serotonin reuptake inhibitors. Children with ADHD may demonstrate disrup— tive behavior, social immaturity, and learning difficulties that may interfere with academic progress and interpersonal relationships and lead to greater impairment than that caused by a tic disorder. Individuals with tic disorders can also have other movement disorders and other mental disorders, such as depressive, bipolar, or substance use disorders. 307.20 (F95.8)This category applies to presentations in which symptoms characteristic of a tic disorder that cause clinically significant distress or impairment in social, occupational, or other im- portant areas of functioning predominate but do not meet the full criteria for a tic disorder or any of the disorders in the neurodevelopmental disorders diagnostic class. The other specified tic disorder category is used in situations in which the clinician chooses to com- municate the specific reason that the presentation does not meet the criteria for a tic disor- der or any specific neurodevelopmental disorder. This is done by recording “other specified tic disorder” followed by the specific reason (e.g., ‘With onset after age 18 years"). 307.20 (F959)This category applies to presentations in which symptoms characteristic of a tic disorder that cause clinically significant distress or impairment in social, occupational, or other im- portant areas of functioning predominate but do not meet the full criteria for a tic disorder or for any of the disorders in the neurodevelopmental disorders diagnostic class. The un- specified tic disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a tic disorder or for a specific neurode- velopmental disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis. 315.8 (F88)This category applies to presentations in which symptoms characteristic of a neurodevel- opmental disorder that cause impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the neurodevelopmental disorders diagnostic class. The other specified neurodevelopmental disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific neurode- velopmental disorder. This is done by recording “other specified neurodevelopmental dis- order" followed by the specific reason (e.g., “neurodevelopmental disorder associated with prenatal alcohol exposure"). An example of a presentation that can be specified using the “other specified" desig- nation is the following: Neurodevelopmental disorder associated with prenatal alcohol exposure: Neu- rodevelopmental disorder associated with prenatal alcohol exposure is characterized by a range of developmental disabilities following exposure to alcohol in utero. 315.9 (F89)This category applies to presentations in which symptoms characteristic of a neurodevel- opmental disorder that cause impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the neurodevelopmental disorders diagnostic class. The unspecified neurodevelopmental dis- order category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific neurodevelopmental disorder, and includes pre- sentations in which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). SChlZOph re n | 8. S pectru m and other psychotic disorders include schizophrenia, other psychotic disorders, and schizotypal (personality) disorder. They are defined by ab- normalities in one or more of the following five domains: delusions, hallucinations, disor— ganized thinking (speech), grossly disorganized or abnormal motor behavior (including catatonia), and negative symptoms. Key Features That Define the Psychotic DisordersDelusions are fixed beliefs that are not amenable to change in light of conflicting evidence. Their content may include a variety of themes (e.g., persecutory, referential, somatic, reli- gious, grandiose). Persecutory delusions (i.e., belief that one is going to be harmed, harassed, and so forth by an individual, organization, or other group) are most common. Referential delusions (i.e., belief that certain gestures, comments, environmental cues, and so forth are directed at oneself) are also common. Grandiose delusions (i.e., when an individual believes that he or she has exceptional abilities, wealth, or fame) and erotomnnic delusions (i.e., when an individual believes falsely that another person is in love with him or her) are also seen. Nihilistic delusions involve the conviction that a major catastrophe will occur, and somatic delusions focus on preoccupations regarding health and organ function. Delusions are deemed bizarre if they are clearly implausible and not understandable to same-culture peers and do not derive from ordinary life experiences. An example of a bi- zarre delusion is the belief that an outside force has removed his or her internal organs and replaced them with someone else’s organs without leaving any wounds or scars. An ex— ample of a nonbizarre delusion is the belief that one is under surveillance by the police, de- spite a lack of convincing evidence. Delusions that express a loss of control over mind or body are generally considered to be bizarre; these include the belief that one’s thoughts have been "removed” by some outside force (thought withdrawal), that alien thoughts have been put into one’s mind (thought insertion), or that one’s body or actions are being acted on or manipulated by some outside force (delusions of control). The distinction between a de- lusion and a strongly held idea is sometimes difficult to make and depends in part on the degree of conviction with which the belief is held despite clear or reasonable contradictory evidence regarding its veracity. Hallucinations are perception-like experiences that occur without an external stimulus. They are vivid and clear, with the full force and impact of normal perceptions, and not under voluntary control. They may occur in any sensory modality, but auditory halluci- nations are the most common in schizophrenia and related disorders. Auditory hallucina- tions are usually experienced as voices, whether familiar or unfamiliar, that are perceived as distinct from the individual’s own thoughts. The hallucinations must occur in the con- text of a clear sensorium; those that occur while falling asleep (hypnagogic) or waking up (hypnopompic) are considered to be within the range of normal experience. Hallucinations may be a normal part of religious experience in certain cultural contexts. Disorganized thinking (formal thought disorder) is typically inferred from the individual’s speech. The individual may switch from one topic to another (derailment or loose associa- tions). Answers to questions may be obliquely related or completely unrelated (tangential— ity). Rarely, speech may be so severely disorganized that it is nearly incomprehensible and resembles receptive aphasia in its linguistic disorganization (incoherence or ”word salad"). Because mildly disorganized speech is common and nonspecific, the symptom must be se- vere enough to substantially impair effective communication. The severity of the impair- ment may be difficult to evaluate if the person making the diagnosis comes from a different linguistic background than that of the person being examined. Less severe dis- organized thinking or speech may occur during the prodromal and residual periods of schizophrenia. Grossly disorganized or abnormal motor behavior may manifest itself in a variety of ways, ranging from childlike ”silliness” to unpredictable agitation. Problems may be noted in any form of goal-directed behavior, leading to difficulties in performing activities of daily living. Catatonic behavior is a marked decrease in reactivity to the environment. This ranges from resistance to instructions (negativism); to maintaining a rigid, inappropriate or bi- zarre posture; to a complete lack of verbal and motor responses (mutism and stupor). It can excitement). Other features are repeated stereotyped movements, staring, grimacing, mutism, and the echoing of speech. Although catatonia has historically been associated with schizophrenia, catatonic symptoms are nonspecific and may occur in other mental disorders (e.g., bipolar or depressive disorders with catatonia) and in medical conditions (catatonic disorder due to another medical condition). Negative symptoms account for a substantial portion of the morbidity associated with schizophrenia but are less prominent in other psychotic disorders. Two negative symp- toms are particularly prominent in schizophrenia: diminished emotional expression and avolition. Diminished emotional expression includes reductions in the expression of emo- tions in the face, eye contact, intonation of speech (prosody), and movements of the hand, head, and face that normally give an emotional emphasis to speech. Avolition is a decrease in motivated self-initiated purposeful activities. The individual may sit for long periods of time and show little interest in participating in work or social activities. Other negative symptoms include alogia, anhedonia, and asociality. Alogia is manifested by diminished speech output. Anhedonia is the decreased ability to experience pleasure from positive stimuli or a degradation in the recollection of pleasure previously experienced. Asociality refers to the apparent lack of interest in social interactions and may be associated with avo- lition, but it can also be a manifestation of limited opportunities for social interactions. This chapter is organized along a gradient of psychopathology. Clinicians should first con- sider conditions that do not reach full criteria for a psychotic disorder or are limited to one domain of psychopathology. Then they should consider time-limited conditions. Finally, the diagnosis of a schizophrenia spectrum disorder requires the exclusion of another con- dition that may give rise to psychosis. Schizotypal personality disorder is noted within this chapter as it is considered within the schizophrenia spectrum, although its full description is found in the chapter ”Person- ality Disorders.” The diagnosis schizotypal personality disorder captures a pervasive pat- tern of social and interpersonal deficits, including reduced capacity for close relationships; cognitive or perceptual distortions; and eccentricities of behavior, usually beginning by early adulthood but in some cases first becoming apparent in childhood and adolescence. Abnormalities of beliefs, thinking, and perception are below the threshold for the diagno- sis of a psychotic disorder. Two conditions are defined by abnormalities limited to one domain of psychosis: delu- sions or catatonia. Delusional disorder is characterized by at least 1 month of delusions but no other psychotic symptoms. Catatonia is described later in the chapter and further in this discussion. Brief psychotic disorder lasts more than 1 day and remits by 1 month. Schizophreni- form disorder is characterized by a symptomatic presentation equivalent to that of schizo- phrenia except for its duration (less than 6 months) and the absence of a requirement for a decline in functioning. Schizophrenia lasts for at least 6 months and includes at least 1 month of active-phase symptoms. In schizoaffective disorder, a mood episode and the active-phase symptoms of schizophrenia occur together and were preceded or are followed by at least 2 weeks of de- lusions or hallucinations without prominent mood symptoms. Psychotic disorders may be induced by another condition. In substance/medication— induced psychotic disorder, the psychotic symptoms are judged to be a physiological con- sequence of a drug of abuse, a medication, or toxin exposure and cease after removal of the agent. In psychotic disorder due to another medical condition, the psychotic symptoms are judged to be a direct physiological consequence of another medical condition. Catatonia can occur in several disorders, including neurodevelopmental, psychotic, bi— polar, depressive, and other mental disorders. This chapter also includes the diagnoses catatonia associated with another mental disorder (catatonia specifier), catatonic disorder due to another medical condition, and unspecified catatonia, and the diagnostic criteria for all three conditions are described together. ders are included for classifying psychotic presentations that do not meet the criteria for any of the specific psychotic disorders, or psychotic symptomatology about which there is inadequate or contradictory information. Clinician—Rated Assessment of Symptoms andPsychotic disorders are heterogeneous, and the severity of symptoms can predict impor- tant aspects of the illness, such as the degree of cognitive or neurobiological deficits. To move the field forward, a detailed framework for the assessment of severity is included in Section III "Assessment Measures," which may help with treatment planning, prognostic decision making, and research on pathophysiological mechanisms. Section III ”Assess- ment Measures” also contains dimensional assessments of the primary symptoms of psy- chosis, including hallucinations, delusions, disorganized speech (except for substance/ medication-induced psychotic disorder and psychotic disorder due to another medical condition), abnormal psychomotor behavior, and negative symptoms, as well as dimen— sional assessments of depression and mania. The severity of mood symptoms in psychosis has prognostic value and guides treatment. There is growing evidence that schizoaffective disorder is not a distinct nosological category. Thus, dimensional assessments of depres- sion and mania for all psychotic disorders alert clinicians to mood pathology and the need to treat where appropriate. The Section III scale also includes a dimensional assessment of cognitive impairment. Many individuals with psychotic disorders have impairments in a range of cognitive domains that predict functional status. Clinical neuropsychological as- sessment can help guide diagnosis and treatment, but brief assessments without formal diagnostic purposes. Formal neuropsychological testing, when conducted, should be ad- ministered and scored by personnel trained in the use of testing instruments. If a formal neuropsychological assessment is not conducted, the clinician should use the best avail- able information to make a judgment. Further research on these assessments is necessary in order to determine their clinical utility; thus, the assessments available in Section 111 should serve as a prototype to stimulate such research. Criteria and text for schizotypal personality disorder can be found in the chapter "Person- ality Disorders.” Because this disorder is considered part of the schizophrenia spectrum of disorders, and is labeled in this section of ICD-9 and ICD-10 as schizotypal disorder, it is listed in this chapter and discussed in detail in the DSM-5 chapter ”Personality Disorders." Diagnostic Criteria 297.1 (F22)A. The presence of one (or more) delusions with a duration of 1 month or longer. B. Criterion A for schizophrenia has never been met.Note: Hallucinations, if present, are not prominent and are related to the delusional theme (e.g., the sensation of being infested with insects associated with delusions of infestation). C. Apart from the impact of the delusion(s) or its ramifications, functioning is not markedly impaired, and behavior is not obviously bizarre or odd. D. It manic or major depressive episodes have occurred, these have been brief relative to the duration of the delusional periods. E. The disturbance is not attributable to the physiological effects of a substance or an- other medical condition and is not better explained by another mental disorder, such as body dysmorphic disorder or obsessive-compulsive disorder. Specify whether:Erotomanlc type: This subtype applies when the central theme of the delusion is that another person is in love with the individual. Grandiose type: This subtype applies when the central theme of the delusion is the conviction of having some great (but unrecognized) talent or insight or having made some important discovery. Jealous type: This subtype applies when the central theme of the individual's delusion is that his or her spouse or lover is unfaithful. Persecutory type: This subtype applies when the central theme of the delusion in- volves the individual’s belief that he or she is being conspired against, cheated, spied on, followed. poisoned or drugged, maliciously maligned, harassed, or obstructed in the pursuit of long-term goals. Somatic type: This subtype applies when the central theme of the delusion involves bodily functions or sensations. Mixed type: This subtype applies when no one delusional theme predominates. Unspecified type: This subtype applies when the dominant delusional belief cannot be clearly determined or is not described in the specific types (e.g., referential delu- sions without a prominent persecutory or grandiose component). Specify it:With bizarre content: Delusions are deemed bizarre if they are clearly implausible, not understandable, and not derived from ordinary life experiences (e.g., an individual's be- lief that a stranger has removed his or her internal organs and replaced them with some— one else's organs without leaving any wounds or scars). Specify if:The following course specifiers are only to be used after a 1-year duration of the disorder: First episode, currently in acute episode: First manifestation of the disorder meet- ing the defining diagnostic symptom and time criteria. An acute episode is a time pe- riod in which the symptom criteria are fulfilled. First episode, currently in partial remission: Partial remission is a time period dur- ing which an improvement after a previous episode is maintained and in which the de- fining criteria of the disorder are only partially fulfilled. First episode, currently in full remission: Full remission is a period of time after a previous episode during which no disorder-specitic symptoms are present. Multiple episodes, currently in acute episodeMultiple episodes, currently in partial remissionMultiple episodes, currently in full remissionContinuous: Symptoms fulfilling the diagnostic symptom criteria of the disorder are remaining for the majority of the illness course, with subthreshold symptom periods be- ing very brief relative to the overall course. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, disorganized speech, abnormal psychomotor be- havior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See CIinician-Ftated Dimensions of Psychosis Symptom Severity in the chapter "Assessment Measures")Note: Diagnosis of delusional disorder can be made without using this severity specifier. In erotomanic type, the central theme of the delusion is that another person is in love with the individual. The person about whom this conviction is held is usually of higher status (e.g., a famous individual or a superior at work) but can be a complete stranger. Efforts to contact the object of the delusion are common. In grandiose type, the central theme of the de- lusion is the conviction of having some great talent or insight or of having made some im- portant discovery. Less commonly, the individual may have the delusion of having a special relationship with a prominent individual or of being a prominent person (in which case the actual individual may be regarded as an impostor). Grandiose delusions may have a religious content. In jealous type, the central theme of the delusion is that of an un- faithful partner. This belief is arrived at without due cause and is based on incorrect infer- ences supported by small bits of "evidence” (e.g., disarrayed clothing). The individual with the delusion usually confronts the spouse or lover and attempts to intervene in the imagined infidelity. In persecutory type, the central theme of the delusion involves the in- dividual’s belief of being conspired against, cheated, spied on, followed, poisoned, mali- ciously maligned, harassed, or obstructed in the pursuit of long—term goals. Small slights may be exaggerated and become the focus of a delusional system. The affected individual may engage in repeated attempts to obtain satisfaction by legal or legislative action. Indi- viduals with persecutory delusions are often resentful and angry and may resort to Vio- lence against those they believe are hurting them. In somatic type, the central theme of the delusion involves bodily functions or sensations. Somatic delusions can occur in several forms. Most common is the belief that the individual emits a foul odor; that there is an in- festation of insects on or in the skin; that there is an internal parasite; that certain parts of the body are misshapen or ugly; or that parts of the body are not functioning. The essential feature of delusional disorder is the presence of one or more delusions that persist for at least 1 month (Criterion A). A diagnosis of delusional disorder is not given if the individual has ever had a symptom presentation that met Criterion A for schizophre- nia (Criterion B). Apart from the direct impact of the delusions, impairments in psychoso- such as schizophrenia, and behavior is not obviously bizarre or odd (Criterion C). If mood episodes occur concurrently with the delusions, the total duration of these mood episodes is brief relative to the total duration of the delusional periods (Criterion D). The delusions are not attributable to the physiological effects of a substance (e.g., cocaine) or another medical condition (e.g., Alzheimer’s disease) and are not better explained by another men- tal disorder, such as body dysmorphic disorder or obsessive-compulsive disorder (Crite- rion E). In addition to the five symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. Social, marital, or work problems can result from the delusional beliefs of delusional dis- order. Individuals with delusional disorder may be able to factually describe that others view their beliefs as irrational but are unable to accept this themselves (i.e., there may be ”factual insight” but no true insight). Many individuals develop irritable or dysphoric mood, which can usually be understood as a reaction to their delusional beliefs. Anger and violent behavior can occur with persecutory, jealous, and erotomanic types. The individ- ual may engage in litigious or antagonistic behavior (e.g., sending hundreds of letters of protest to the government). Legal difficulties can occur, particularly in jealous and eroto- manic types. The lifetime prevalence of delusional disorder has been estimated at around 0.2%, and the most frequent subtype is persecutory. Delusional disorder, jealous type, is probably more common in males than in females, but there are no major gender differences in the overall frequency of delusional disorder. On average, global function is generally better than that observed in schizophrenia. Al- though the diagnosis is generally stable, a proportion of individuals go on to develop schizophrenia. Delusional disorder has a significant familial relationship with both schizophrenia and schizotypal personality disorder. Although it can occur in younger age groups, the condition may be more prevalent in older individuals. ing the possible presence of delusional disorder. The content of delusions also varies across cultural contexts. Functional Consequences of Delusional DisorderThe functional impairment is usually more circumscribed than that seen with other psy- chotic disorders, although in some cases, the impairment may be substantial and include poor occupational functioning and social isolation. When poor psychosocial functioning is present, delusional beliefs themselves often play a significant role. A common character- istic of individuals with delusional disorder is the apparent normality of their behavior and appearance when their delusional ideas are not being discussed or acted on. Obsessive-compulsive and related disorders. If an individual with obsessive—compul— sive disorder is completely convinced that his or her obsessive-compulsive disorder beliefs are true, then the diagnosis of obsessive-compulsive disorder, with absent insight/delu- sional beliefs specifier, should be given rather than a diagnosis of delusional disorder. Similarly, if an individual with body dysmorphic disorder is completely convinced that his or her body dysmorphic disorder beliefs are true, then the diagnosis of body dysmor- phic disorder, with absent insight/ delusional beliefs specifier, should be given rather than a diagnosis of delusional disorder. Delirium, major neurocognitive disorder, psychotic disorder due to another medical con- dition, and substance/medication-induced psychotic disorder. Individuals with these disorders may present with symptoms that suggest delusional disorder. For example, sirn- ple persecutory delusions in the context of major neurocognitive disorder would be di- agnosed as major neurocognitive disorder, with behavioral disturbance. A substance/ atology to delusional disorder but can be distinguished by the chronological relationship of substance use to the onset and remission of the delusional beliefs. Schizophrenia and schizophreniform disorder. Delusional disorder can be distinguished from schizophrenia and schizophreniform disorder by the absence of the other character- istic symptoms of the active phase of schizophrenia. Depressive and bipolar disorders and schizoaffective disorder. These disorders may be distinguished from delusional disorder by the temporal relationship between the mood disturbance and the delusions and by the severity of the mood symptoms. If delusions oc- cur exclusively during mood episodes, the diagnosis is depressive or bipolar disorder with psychotic features. Mood symptoms that meet full criteria for a mood episode can be su- perimposed on delusional disorder. Delusional disorder can be diagnosed only if the total duration of all mood episodes remains brief relative to the total duration of the delusional disturbance. If not, then a diagnosis of other specified or unspecified schizophrenia spec- trum and other psychotic disorder accompanied by other specified depressive disorder, unspecified depressive disorder, other specified bipolar and related disorder, or unspeci- fied bipolar and related disorder is appropriate. Diagnostic Criteria 298.8 (F23)A. Presence of one (or more) of the following symptoms. At least one of these must be (1). (2). 0r (3): 1. Delusions. 2. Hallucinations.3. Disorganized speech (e.g., frequent derailment or incoherence).4. Grossly disorganized or catatonic behavior.Note: Do not include a symptom if it is a culturally sanctioned response. B. Duration of an episode of the disturbance is at least 1 day but less than 1 month, with eventual full return to premorbid level of functioning. C. The disturbance is not better explained by major depressive or bipolar disorder with psychotic features or another psychotic disorder such as schizophrenia or catatonia, and is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. Specify it:With marked stressor(s) (brief reactive psychosis): If symptoms occur in response to events that, singly or together, would be markedly stressful to almost anyone in similar circumstances in the individual’s culture. Without marked stressor(s): If symptoms do not occur in response to events that, singly or together, would be markedly stressful to almost anyone in similar circum- stances in the individual's culture. With postpartum onset: If onset is during pregnancy or within 4 weeks postpartum. Specify if:With catatonla (refer to the criteria for catatonia associated with another mental dis- order, pp. 119—120, for definition) Coding note: Use additional code 293.89 (F06.1) catatonia associated with brief psychotic disorder to indicate the presence of the comorbid catatonia. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, disorganized speech, abnormal psychomotor be- havior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See CIinician-Rated Dimensions of Psychosis Symptom Severity in the chapter “Assessment Measures”)Note: Diagnosis of brief psychotic disorder can be made without using this severity specifier. The essential feature of brief psychotic disorder is a disturbance that involves the sudden onset of at least one of the following positive psychotic symptoms: delusions, hallucina- tions, disorganized speech (e.g., frequent derailment or incoherence), or grossly abnormal psychomotor behavior, including catatonia (Criterion A). Sudden onset is defined as change from a nonpsychotic state to a clearly psychotic state within 2 weeks, usually with- out a prodrome. An episode of the disturbance lasts at least 1 day but less than 1 month, and the individual eventually has a full return to the premorbid level of functioning (Cri- terion B). The disturbance is not better explained by a depressive or bipolar disorder with psychotic features, by schizoaffective disorder, or by schizophrenia and is not attributable to the physiological effects of a substance (e.g., a hallucinogen) or another medical condi- tion (e.g., subdural hematoma) (Criterion C). In addition to the five symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is Vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. Individuals with brief psychotic disorder typically experience emotional turmoil or over- whelming confusion. They may have rapid shifts from one intense affect to another. Although the disturbance is brief, the level of impairment may be severe, and supervision may be required to ensure that nutritional and hygienic needs are met and that the indi- vidual is protected from the consequences of poor judgment, cognitive impairment, or act- ing on the basis of delusions. There appears to be an increased risk of suicidal behavior, particularly during the acute episode. In the United States, brief psychotic disorder may account for 9% of cases of first-onset psychosis. Psychotic disturbances that meet Criteria A and C, but not Criterion B, for brief psychotic disorder (i.e., duration of active symptoms is 1—6 months as opposed to remis- sion within 1 month) are more common in developing countries than in developed coun- tries. Brief psychotic disorder is twofold more common in females than in males. Brief psychotic disorder may appear in adolescence or early adulthood, and onset can oc- cur across the lifespan, with the average age at onset being the mid 305. By definition, a diagnosis of brief psychotic disorder requires a full remission of all symptoms and an eventual full return to the premorbid level of functioning Within 1 month of the onset of the disturbance. In some individuals, the duration of psychotic symptoms may be quite brief (e.g., a few days). Temperamental. Preexisting personality disorders and traits (e.g., schizotypal person- ality disorder; borderline personality disorder; or traits in the psychoticism domain, such as perceptual dysregulation, and the negative affectivity domain, such as suspiciousness) may predispose the individual to the development of the disorder. It is important to distinguish symptoms of brief psychotic disorder from culturally sanc- tioned response patterns. For example, in some religious ceremonies, an individual may report hearing voices, but these do not generally persist and are not perceived as abnormal by most members of the individual’s community. In addition, cultural and religious back- ground must be taken into account when considering whether beliefs are delusional. Functionai Consequences of Brief Psychotic DisorderDespite high rates of relapse, for most individuals, outcome is excellent in terms of social functioning and symptomatology. Other medical conditions. A variety of medical disorders can manifest with psychotic symptoms of short duration. Psychotic disorder due to another medical condition or a de— lirium is diagnosed when there is evidence from the history, physical examination, or lab- oratory tests that the delusions or hallucinations are the direct physiological consequence of a specific medical condition (e.g., Cushing’s syndrome, brain tumor) (see “Psychotic Disorder Due to Another Medical Condition” later in this chapter). Substance-related disorders. Substance/medication-induced psychotic disorder, sub- stance-induced delirium, and substance intoxication are distinguished from brief psychotic disorder by the fact that a substance (e.g., a drug of abuse, a medication, exposure to a toxin) is judged to be etiologically related to the psychotic symptoms (see ”Substance /Medication- Induced Psychotic Disorder” later in this chapter). Laboratory tests, such as a urine drug screen or a blood alcohol level, may be helpful in making this determination, as may a care- ful history of substance use with attention to temporal relationships between substance in- take and onset of the symptoms and to the nature of the substance being used. Depressive and bipolar disorders. The diagnosis of brief psychotic disorder cannot be made if the psychotic symptoms are better explained by a mood episode (i.e., the psychotic symptoms occur exclusively during a full major depressive, manic, or mixed episode). Other psychotic disorders. If the psychotic symptoms persist for 1 month or longer, the diagnosis is either schizophreniform disorder, delusional disorder, depressive disorder with psychotic features, bipolar disorder with psychotic features, or other specified or un- specified schizophrenia spectrum and other psychotic disorder, depending on the other symptoms in the presentation. The differential diagnosis between brief psychotic disorder and schizophreniform disorder is difficult when the psychotic symptoms have remitted be- fore 1 month in response to successful treatment with medication. Careful attention should be given to the possibility that a recurrent disorder (e.g., bipolar disorder, recurrent acute ex- acerbations of schizophrenia) may be responsible for any recurring psychotic episodes. Malingering and factitious disorders. An episode of factitious disorder, with predomi- nantly psychological signs and symptoms, may have the appearance of brief psychotic disorder, but in such cases there is evidence that the symptoms are intentionally produced. When malingering involves apparently psychotic symptoms, there is usually evidence that the illness is being feigned for an understandable goal. Personality disorders. In certain individuals with personality disorders, psychosocial stressors may precipitate brief periods of psychotic symptoms. These symptoms are usu- ally transient and do not warrant a separate diagnosis. If psychotic symptoms persist for at least 1 day, an additional diagnosis of brief psychotic disorder may be appropriate. Diagnostic Criteria 295.40 (F20.81)A. Two (or more) of the following, each present for a significant portion of time during a 1-month period (or less it successfully treated). At least one of these must be (1 ). (2), or (3): 1. Delusions. 2. Hallucinations.3. Disorganized speech (e.g., frequent derailment or incoherence).4. Grossly disorganized or catatonic behavior.5. Negative symptoms (i.e., diminished emotional expression or avolition).B. An episode of the disorder lasts at least 1 month but less than 6 months. When the diagnosis must be made without waiting for recovery, it should be qualified as “provi- sional." C. Schizoaffective disorder and depressive or bipolar disorder with psychotic features have been ruled out because either 1) no major depressive or manic episodes have occurred concurrently with the active-phase symptoms, or 2) if mood episodes have occurred dur- ing active-phase symptoms, they have been present for a minority of the total duration of the active and residual periods of the illness. D. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. Specify it:With good prognostic features: This specifier requires the presence of at least two of the following features: onset of prominent psychotic symptoms within 4 weeks of the premorbid social and occupational functioning; and absence of blunted or flat affect. Without good prognostic features: This specifier is applied if two or more of the above features have not been present. Specify if:With catatonia (refer to the criteria for catatonia associated with another mental disor- der, pp. 119—120, for definition). Coding note: Use additional code 293.89 (F06.1) catatonia associated with schizo- phreniform disorder to indicate the presence of the comorbid catatonia. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, disorganized speech, abnormal psychomotor be- havior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See CIinician-Rated Dimensions of Psychosis Symptom Severity in the chapter “Assessment Measures")Note: Diagnosis of schizophreniform disorder can be made without using this severity specifier. Note: For additional information on Associated Features Supporting Diagnosis, Develop- ment and Course (age-related factors), Culture-Related Diagnostic Issues, Gender-Related Diagnostic Issues, Differential Diagnosis, and Comorbidity, see the corresponding sec- tions in schizophrenia. The characteristic symptoms of schizophreniform disorder are identical to those of schizo- phrenia (Criterion A). Schizophreniform disorder is distinguished by its difference in du- ration: the total duration of the illness, including prodromal, active, and residual phases, is at least 1 month but less than 6 months (Criterion B). The duration requirement for schizo- phreniform disorder is intermediate between that for brief psychotic disorder, which lasts more than 1 day and remits by 1 month, and schizophrenia, which lasts for at least 6 months. The diagnosis of schizophreniform disorder is made under two conditions. 1) when an ep- isode of illness lasts between 1 and 6 months and the individual has already recovered, and 2) when an individual is symptomatic for less than the 6 months’ duration required for the diagnosis of schizophrenia but has not yet recovered. In this case, the diagnosis should be noted as ”schizophreniform disorder (provisiona1)” because it is uncertain if the indi- vidual will recover from the disturbance within the 6-month period. If the disturbance per- sists beyond 6 months, the diagnosis should be changed to schizophrenia. Another distinguishing feature of schizophreniform disorder is the lack of a criterion requiring impaired social and occupational functioning. While such impairments may po- tentially be present, they are not necessary for a diagnosis of schizophreniform disorder. In addition to the five symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. As with schizophrenia, currently there are no laboratory or psychometric tests for schizo— phreniform disorder. There are multiple brain regions where neuroimaging, neuropa- thological, and neurophysiological research has indicated abnormalities, but none are diagnostic. Incidence of schizophreniform disorder across sociocultural settings is likely similar to that observed in schizophrenia. In the United States and other developed countries, the in— cidence is low, possibly fivefold less than that of schizophrenia. In developing countries, the incidence may be higher, especially for the specifier “with good prognostic features"; in some of these settings schizophreniform disorder may be as common as schizophrenia. The development of schizophreniform disorder is similar to that of schizophrenia. About one-third of individuals with an initial diagnosis of schizophreniform disorder (provi— sional) recover within the 6-month period and schizophreniform disorder is their final di- agnosis. The majority of the remaining two-thirds of individuals will eventually receive a diagnosis of schizophrenia or schizoaffective disorder. Genetic and physiological. Relatives of individuals with schizophreniform disorder have an increased risk for schizophrenia. For the majority of individuals with schizophreniform disorder who eventually receive a diagnosis of schizophrenia or schizoaffective disorder, the functional consequences are similar to the consequences of those disorders. Most individuals experience dysfunction in several areas of daily functioning, such as school or work, interpersonal relationships, and self—care. Individuals who recover from schizophreniform disorder have better functional outcomes. Other mental disorders and medical conditions. A wide variety of mental and medical conditions can manifest with psychotic symptoms that must be considered in the differ- ential diagnosis of schizophreniform disorder. These include psychotic disorder due to disorder with psychotic features; schizoaffective disorder; other specified or unspecified bi— polar and related disorder; depressive or bipolar disorder with catatonic features; schizophre- phrenia spectrum and other psychotic disorder; schizotypal, schizoid, or paranoid personality disorders,- autism spectrum disorder; disorders presenting in childhood with order; posttraumatic stress disorder; and traumatic brain injury. Since the diagnostic criteria for schizophreniform disorder and schizophrenia differ primarily in duration of illness, the discussion of the differential diagnosis of schizophre- nia also applies to schizophreniform disorder. Brief psychotic disorder. Schizophreniform disorder differs in duration from brief psy- chotic disorder, which has a duration of less than 1 month. Diagnostic Criteria 295.90 (F20.9)A. Two (or more) of the following, each present for a significant portion of time during a 1-month period (or less it successfully treated). At least one of these must be (1 ), (2), or (3): 1. Delusions. Disorganized speech (e.g., frequent derailment or incoherence).Grossly disorganized or catatonic behavior.Negative symptoms (i.e., diminished emotional expression or avolition).B. For a significant portion of the time since the onset of the disturbance, level of function- ing in one or more major areas, such as work, interpersonal relations, or self-care, is markedly below the level achieved prior to the onset (or when the onset is in childhood or adolescence, there is failure to achieve expected level of interpersonal, academic, or occupational functioning). C. Continuous signs of the disturbance persist for at least 6 months. This 6-month period must include at least 1 month of symptoms (or less it successfully treated) that meet Cri- terion A (i.e., active-phase symptoms) and may include periods of prodromal or residual symptoms. During these prodromal or residual periods, the signs of the disturbance may A present in an attenuated form (e.g., odd beliefs, unusual perceptual experiences). D. Schizoaffective disorder and depressive or bipolar disorder with psychotic features have been ruled out because either 1) no major depressive or manic episodes have occurred concurrently with the active-phase symptoms, or 2) if mood episodes have occurred during active-phase symptoms, they have been present for a minority of the total duration of the active and residual periods of the illness. E. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. F. If there is a history of autism spectrum disorder or a communication disorder of child- hood onset, the additional diagnosis of schizophrenia is made only if prominent delu- sions or hallucinations, in addition to the other required symptoms of schizophrenia, are also present for at least 1 month (or less if successfully treated). Specify if:The following course specifiers are only to be used after a 1-year duration of the disorder and if they are not in contradiction to the diagnostic course criteria. First episode, currently in acute episode: First manifestation of the disorder meet- ing the defining diagnostic symptom and time criteria. An acute episode is a time pe- riod in which the symptom criteria are fulfilled. First episode, currently in partial remission: Partial remission is a period of time during which an improvement after a previous episode is maintained and in which the defining criteria of the disorder are only partially fulfilled. First episode, currently in full remission: Full remission is a period of time after a previous episode during which no disorder-specific symptoms are present. Multiple episodes, currently in acute episode: Multiple episodes may be deter- mined after a minimum of two episodes (i.e., after a first episode, a remission and a minimum of one relapse). Multiple episodes, currently in partial remissionMultiple episodes, currently in full remissionContinuous: Symptoms fulfilling the diagnostic symptom criteria of the disorder are remaining for the majority of the illness course, with subthreshold symptom periods be- ing very brief relative to the overall course. Specify if:With catatonia (refer to the criteria for catatonia associated with another mental disorder, pp. 119—120, for definition). Coding note: Use additional code 293.89 (F061) catatonia associated with schizophrenia to indicate the presence of the comorbid catatonia. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, disorganized speech, abnormal psychomotor be- havior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See Clinician-Rated Dimensions of Psychosis Symptom Severity in the chapter “Assessment Measures")Note: Diagnosis of schizophrenia can be made without using this severity specifier. The characteristic symptoms of schizophrenia involve a range of cognitive, behavioral, and emotional dysfunctions, but no single symptom is pathognomonic of the disorder. The di- agnosis involves the recognition of a constellation of signs and symptoms associated with impaired occupational or social functioning. Individuals with the disorder will vary sub- stantially on most features, as schizophrenia is a heterogeneous Clinical syndrome. At least two Criterion A symptoms must be present for a significant portion of time during a 1-month period or longer. At least one of these symptoms must be the clear pres- ence of delusions (Criterion A1), hallucinations (Criterion A2), or disorganized speech (Criterion A3). Grossly disorganized or catatonic behavior (Criterion A4) and negative symptoms (Criterion A5) may also be present. In those situations in which the active- phase symptoms remit within a month in response to treatment, Criterion A is still met if the clinician estimates that they would have persisted in the absence of treatment. Schizophrenia involves impairment in one or more major areas of functioning (Crite- rion B). If the disturbance begins in childhood or adolescence, the expected level of func- tion is not attained. Comparing the individual with unaffected siblings may be helpful. The dysfunction persists for a substantial period during the course of the disorder and does not appear to be a direct result of any single feature. Avolition (i.e., reduced drive to pursue goal-directed behavior; Criterion A5) is linked to the social dysfunction described under Criterion B. There is also strong evidence for a relationship between cognitive impairment (see the section "Associated Features Supporting Diagnosis” for this disorder) and func- tional impairment in individuals with schizophrenia. Some signs of the disturbance must persist for a continuous period of at least 6 months (Criterion C). Prodromal symptoms often precede the active phase, and residual symp- toms may follow it, characterized by mild or subthreshold forms of hallucinations or delusions. Individuals may express a variety of unusual or odd beliefs that are not of de- lusional proportions (e.g., ideas of reference or magical thinking); they may have unusual perceptual experiences (e.g., sensing the presence of an unseen person); their speech may disorganized (e.g., mumbling in public). Negative symptoms are common in the pro- dromal and residual phases and can be severe. Individuals who had been socially active may become withdrawn from previous routines. Such behaviors are often the first sign of a disorder. Mood symptoms and full mood episodes are common in schizophrenia and may be con- current with active-phase symptomatology. However, as distinct from a psychotic mood dis- order, a schizophrenia diagnosis requires the presence of delusions or hallucinations in the absence of mood episodes. In addition, mood episodes, taken in total, should be present for only a minority of the total duration of the active and residual periods of the illness. In addition to the five symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. Individuals with schizophrenia may display inappropriate affect (e.g., laughing in the ab- sence of an appropriate stimulus); a dysphoric mood that can take the form of depression, anxiety, or anger; a disturbed sleep pattern (e.g., daytime sleeping and nighttime activity); and a lack of interest in eating or food refusal. Depersonalization, derealization, and so- matic concerns may occur and sometimes reach delusional proportions. Anxiety and pho- bias are common. Cognitive deficits in schizophrenia are common and are strongly linked to vocational and functional impairments. These deficits can include decrements in declar- ative memory, working memory, language function, and other executive functions, as well as slower processing speed. Abnormalities in sensory processing and inhibitory capacity, as well as reductions in attention, are also found. Some individuals with schizophrenia show social cognition deficits, including deficits in the ability to infer the intentions of other people (theory of mind), and may attend to and then interpret irrelevant events or stimuli as meaningful, perhaps leading to the generation of explanatory delusions. These impairments frequently persist during symptomatic remission. Some individuals with psychosis may lack insight or awareness of their disorder (i.e., anosognosia). This lack of ”insight" includes unawareness of symptoms of schizophrenia and may be present throughout the entire course of the illness. Unawareness of illness is typically a symptom of schizophrenia itself rather than a coping strategy. It is comparable to the lack of awareness of neurological deficits following brain damage, termed anosa— gnosia. This symptom is the most common predictor of non-adherence to treatment, and it predicts higher relapse rates, increased number of involuntary treatments, poorer psycho- social functioning, aggression, and a poorer course of illness. Hostility and aggression can be associated with schizophrenia, although spontaneous or random assault is uncommon. Aggression is more frequent for younger males and for individuals with a past history of violence, non-adherence with treatment, substance abuse, and impulsivity. It should be noted that the vast majority of persons with schizo- phrenia are not aggressive and are more frequently victimized than are individuals in the general population. Currently, there are no radiological, laboratory, or psychometric tests for the disorder. Differences are evident in multiple brain regions between groups of healthy individuals and persons with schizophrenia, including evidence from neuroimaging, neuropatholog- ical, and neurophysiological studies. Differences are also evident in cellular architecture, White matter connectivity, and gray matter volume in a variety of regions such as the pre- frontal and temporal cortices. Reduced overall brain volume has been observed, as well as increased brain volume reduction with age. Brain volume reductions with age are more pronounced in individuals with schizophrenia than in healthy individuals. Finally, indi- viduals with schizophrenia appear to differ from individuals without the disorder in eye- tracking and electrophysiological indices. Neurological soft signs common in individuals with schizophrenia include impairments in motor coordination, sensory integration, and motor sequencing of complex movements; left-right confusion; and disinhibition of associated movements. In addition, minor phys- ical anomalies of the face and limbs may occur. The lifetime prevalence of schizophrenia appears to be approximately 0.3%—0.7%, al- though there is reported variation by race/ethnicity, across countries, and by geographic origin for immigrants and children of immigrants. The sex ratio differs across samples and populations: for example, an emphasis on negative symptoms and longer duration of dis- order (associated with poorer outcome) shows higher incidence rates for males, whereas definitions allowing for the inclusion of more mood symptoms and brief presentations (associated with better outcome) show equivalent risks for both sexes. The psychotic features of schizophrenia typically emerge between the late teens and the mid-30s; onset prior to adolescence is rare. The peak age at onset for the first psychotic ep- isode is in the early- to mid-205 for males and in the late—205 for females. The onset may be abrupt or insidious, but the majority of individuals manifest a slow and gradual develop- ment of a variety of clinically significant signs and symptoms. Half of these individuals complain of depressive symptoms. Earlier age at onset has traditionally been seen as a pre- dictor of worse prognosis. However, the effect of age at onset is likely related to gender, with males having worse premorbid adjustment, lower educational achievement, more prominent negative symptoms and cognitive impairment, and in general a worse out- come. Impaired cognition is common, and alterations in cognition are present during de- velopment and precede the emergence of psychosis, taking the form of stable cognitive impairments during adulthood. Cognitive impairments may persist when other symptoms are in remission and contribute to the disability of the disease. The predictors of course and outcome are largely unexplained, and course and outcome may not be reliably predicted. The course appears to be favorable in about 20% of those with schizophrenia, and a small number of individuals are reported to recover completely. However, most individuals with schizophrenia still require formal or informal daily living supports, and many remain chronically ill, with exacerbations and remissions of active symptoms, while others have a course of progressive deterioration. Psychotic symptoms tend to diminish over the life course, perhaps in association with normal age-related declines in dopamine activity. Negative symptoms are more closely re- lated to prognosis than are positive symptoms and tend to be the most persistent. Further- more, cognitive deficits associated with the illness may not improve over the course of the illness. The essential features of schizophrenia are the same in childhood, but it is more diffi- cult to make the diagnosis. In children, delusions and hallucinations may be less elaborate than in adults, and visual hallucinations are more common and should be distinguished from normal fantasy play. Disorganized speech occurs in many disorders with childhood onset (e.g., autism spectrum disorder), as does disorganized behavior (e.g., attention-deficit/ hyperactivity disorder). These symptoms should not be attributed to schizophrenia with- out due consideration of the more common disorders of childhood. Childhood-onset cases tend to resemble poor-outcome adult cases, with gradual onset and prominent negative symptoms. Children who later receive the diagnosis of schizophrenia are more likely to have experienced nonspecific emotional-behavioral disturbances and psychopathology, intellectual and language alterations, and subtle motor delays. Late-onset cases (i.e., onset after age 40 years) are overrepresented by females, who may have married. Often, the course is characterized by a predominance of psychotic symptoms with preservation of affect and social functioning. Such late-onset cases can still meet the diagnostic criteria for schizophrenia, but it is not yet clear whether this is the same condition as schizophrenia diagnosed prior to mid-life (e.g., prior to age 55 years). Environmental. Season of birth has been linked to the incidence of schizophrenia, in- cluding late winter/early spring in some locations and summer for the deficit form of the disease. The incidence of schizophrenia and related disorders is higher for children grow- ing up in an urban environment and for some minority ethnic groups. Genetic and physiological. There is a strong contribution for genetic factors in deter- mining risk for schizophrenia, although most individuals who have been diagnosed with schizophrenia have no family history of psychosis. Liability is conferred by a spectrum of risk alleles, common and rare, with each allele contributing only a small fraction to the to- tal population variance. The risk alleles identified to date are also associated with other mental disorders, including bipolar disorder, depression, and autism spectrum disorder. Pregnancy and birth complications with hypoxia and greater paternal age are associated with a higher risk of schizophrenia for the developing fetus. In addition, other prenatal and perinatal adversities, including stress, infection, malnutrition, maternal diabetes, and other medical conditions, have been linked with schizophrenia. However, the vast major- ity of offspring with these risk factors do not develop schizophrenia. Cultural and socioeconomic factors must be considered, particularly when the individual and the clinician do not share the same cultural and socioeconomic background. Ideas that appear to be delusional in one culture (e.g., witchcraft) may be commonly held in another. In some cultures, visual or auditory hallucinations with a religious content (e.g., hearing God’s voice) are a normal part of religious experience. In addition, the assessment of dis- cultures. The assessment of affect requires sensitivity to differences in styles of emotional expression, eye contact, and body language, which vary across cultures. If the assessment is conducted in a language that is different from the individual’s primary language, care must be taken to ensure that alogia is not related to linguistic barriers. In certain cultures, distress may take the form of hallucinations 0r pseudo-hallucinations and overvalued ideas that may present clinically similar to true psychosis but are normative to the pa- tient’s subgroup. A number of features distinguish the clinical expression of schizophrenia in females and males. The general incidence of schizophrenia tends to be slightly lower in females, par- ticularly among treated cases. The age at onset is later in females, with a second mid-life peak as described earlier (see the section ”Development and Course” for this disorder). Symptoms tend to be more affect-laden among females, and there are more psychotic symptoms, as well as a greater propensity for psychotic symptoms to worsen in later life. Other symptom differences include less frequent negative symptoms and disorganization. Finally, social functioning tends to remain better preserved in females. There are, how- ever, frequent exceptions to these general caveats. Approximately 5%—6% of individuals with schizophrenia die by suicide, about 20% attempt suicide on one or more occasions, and many more have significant suicidal ideation. Suicidal behavior is sometimes in response to command hallucinations to harm oneself or others. Suicide risk remains high over the whole lifespan for males and females, although it may be especially high for younger males with comorbid substance use. Other risk factors include having depressive symptoms or feelings of hopelessness and being unemployed, and the risk is higher, also, in the period after a psychotic episode or hospital discharge. Functional Consequences of SchizophreniaSchizophrenia is associated with significant social and occupational dysfunction. Making educational progress and maintaining employment are frequently impaired by avolition or other disorder manifestations, even when the cognitive skills are sufficient for the tasks at hand. Most individuals are employed at a lower level than their parents, and most, par- ticularly men, do not marry or have limited social contacts outside of their family. Major depressive or bipolar disorder with psychotic or catatonic features. The distinc- tion between schizophrenia and major depressive or bipolar disorder with psychotic features or with catatonia depends on the temporal relationship between the mood distur- bance and the psychosis, and on the severity of the depressive or manic symptoms. If de- lusions or hallucinations occur exclusively during a major depressive or manic episode, the diagnosis is depressive or bipolar disorder with psychotic features. Schizoaffective disorder. A diagnosis of schizoaffective disorder requires that a major depressive or manic episode occur concurrently with the active-phase symptoms and that the mood symptoms be present for a majority of the total duration of the active periods. Schizophreniform disorder and brief psychotic disorder. These disorders are of shorter duration than schizophrenia as specified in Criterion C, which requires 6 months of symp- toms. In schizophreniform disorder, the disturbance is present less than 6 months, and in brief psychotic disorder, symptoms are present at least 1 day but less than 1 month. Delusional disorder. Delusional disorder can be distinguished from schizophrenia by the absence of the other symptoms characteristic of schizophrenia (e.g., delusions, prom- inent auditory or visual hallucinations, disorganized speech, grossly disorganized or cata- tonic behavior, negative symptoms). Schizotypal personality disorder. Schizotypal personality disorder may be distinguished from schizophrenia by subthreshold symptoms that are associated with persistent person- ality features. Obsessive-compulsive disorder and body dysmorphic disorder. Individuals with obsessive-compulsive disorder and body dysmorphic disorder may present with poor or absent insight, and the preoccupations may reach delusional proportions. But these disorders are distinguished from schizophrenia by their prominent obsessions, compul- sions, preoccupations with appearance or body odor, hoarding, or body-focused repeti- tive behaviors. Posttraumatic stress disorder. Posttraumatic stress disorder may include flashbacks that have a hallucinatory quality, and hypervigilance may reach paranoid proportions. But a trau- matic event and characteristic symptom features relating to reliving or reacting to the event are required to make the diagnosis. Autism spectrum disorder or communication disorders. These disorders may also have symptoms resembling a psychotic episode but are distinguished by their respective defi- cits in social interaction with repetitive and restricted behaviors and other cognitive and communication deficits. An individual with autism spectrum disorder or communication disorder must have symptoms that meet full criteria for schizophrenia, with prominent hallucinations or delusions for at least 1 month, in order to be diagnosed with schizophre- nia as a comorbid condition. Other mental disorders associated with a psychotic episode. The diagnosis of schizo- phrenia is made only when the psychotic episode is persistent and not attributable to the physiological effects of a substance or another medical condition. Individuals with a de- lirium or major or minor neurocognitive disorder may present with psychotic symptoms, but these would have a temporal relationship to the onset of cognitive changes consistent with those disorders. Individuals with substance/medication-induced psychotic disorder may present with symptoms characteristic of Criterion A for schizophrenia, but the sub- stance/medication-induced psychotic disorder can usually be distinguished by the chron- ological relationship of substance use to the onset and remission of the psychosis in the absence of substance use. Rates of comorbidity with substance-related disorders are high in schizophrenia. Over half of individuals with schizophrenia have tobacco use disorder and smoke cigarettes regularly. Comorbidity with anxiety disorders is increasingly recognized in schizophre- nia. Rates of obsessive-compulsive disorder and panic disorder are elevated in individuals with schizophrenia compared with the general population. Schizotypal or paranoid per- sonality disorder may sometimes precede the onset of schizophrenia. Life expectancy is reduced in individuals with schizophrenia because of associated medical conditions. Weight gain, diabetes, metabolic syndrome, and cardiovascular and pulmonary disease are more common in schizophrenia than in the general population. Poor engagement in health maintenance behaviors (e.g., cancer screening, exercise) in— creases the risk of chronic disease, but other disorder factors, including medications, life- style, cigarette smoking, and diet, may also play a role. A shared vulnerability for psychosis and medical disorders may explain some of the medical comorbidity of schizo- phrenia. A. An uninterrupted period of illness during which there is a major mood episode (major depressive or manic) concurrent with Criterion A of schizophrenia. Note: The major depressive episode must include Criterion A1: Depressed mood. B. Delusions or hallucinations for 2 or more weeks in the absence of a major mood epi- sode (depressive or manic) during the lifetime duration of the illness. C. Symptoms that meet criteria for a major mood episode are present for the majority of the total duration of the active and residual portions of the illness. D. The disturbance is not attributable to the effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. Specify whether: 295.70 (F25.0) Bipolar type: This subtype applies if a manic episode is part of the pre- sentation. Major depressive episodes may also occur. 295.70 (F25.1) Depressive type: This subtype applies if only major depressive epi- sodes are part of the presentation. Specify if:With catatonia (refer to the criteria for catatonia associated with another mental disorder, pp. 119—120, for definition). Coding note: Use additional code 293.89 (F06.1) catatonia associated with schizoaffective disorder to indicate the presence of the comorbid catatonia. Specify if:The following course specifiers are only to be used after a 1—year duration of the disorder and if they are not in contradiction to the diagnostic course criteria. First episode, currently in acute episode: First manifestation of the disorder meet- ing the defining diagnostic symptom and time criteria. An acute episode is a time pe- riod in which the symptom criteria are fulfilled. First episode, currently in partial remission: Partial remission is a time period dur- ing which an improvement after a previous episode is maintained and in which the de- fining criteria of the disorder are only partially fulfilled. First episode, currently in full remission: Full remission is a period of time after a previous episode during which no disorder-specific symptoms are present. Multiple episodes, currently in acute episode: Multiple episodes may be deter— mined after a minimum of two episodes (i.e., after a first episode, a remission and a minimum of one relapse). Multiple episodes, currently in partial remissionMultiple episodes, currently in full remissionContinuous: Symptoms fulfilling the diagnostic symptom criteria of the disorder are remaining for the majority of the illness course, with subthreshold symptom periods be- ing very brief relative to the overall course. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, disorganized speech, abnormal psychomotor be— havior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See CIinician-Rated Dimensions of Psychosis Symptom Severity in the chapter “Assessment Measures")Note: Diagnosis of schizoaffective disorder can be made without using this severity specifier. Note: For additional information on Development and Course (age-related factors), Risk and Prognostic Factors (environmental risk factors), Culture-Related Diagnostic Issues, and Gender-Related Diagnostic Issues, see the corresponding sections in schizophrenia, bipolar I and II disorders, and major depressive disorder in their respective chapters. The diagnosis of schizoaffective disorder is based on the assessment of an uninterrupted period of illness during which the individual continues to display active or residual symp- toms of psychotic illness. The diagnosis is usually, but not necessarily, made during the period of psychotic illness. At some time during the period, Criterion A for schizophrenia has to be met. Criteria B (social dysfunction) and F (exclusion of autism spectrum disorder or other communication disorder of childhood onset) for schizophrenia do not have to be met. In addition to meeting Criterion A for schizophrenia, there is a major mood episode (major depressive or manic) (Criterion A for schizoaffective disorder). Because loss of in- terest or pleasure is common in schizophrenia, to meet Criterion A for schizoaffective dis— order, the major depressive episode must include pervasive depressed mood (i.e., the presence of markedly diminished interest or pleasure is not sufficient). Episodes of de- pression or mania are present for the majority of the total duration of the illness (i.e., after Criterion A has been met) (Criterion C for schizoaffective disorder). To separate schizoaf- fective disorder from a depressive or bipolar disorder with psychotic features, delusions or hallucinations must be present for at least 2 weeks in the absence of a major mood epi— sode (depressive or manic) at some point during the lifetime duration of the illness (Cri- terion B for schizoaffective disorder). The symptoms must not be attributable to the effects of a substance or another medical condition (Criterion D for schizoaffective disorder). for a major mood episode must be present for the majority of the total duration of the ac- tive and residual portion of the illness. Criterion C requires the assessment of mood symp- toms for the entire course of a psychotic illness, which differs from the criterion in DSM-IV, which required only an assessment of the current period of illness. If the mood symptoms are present for only a relatively brief period, the diagnosis is schizophrenia, not schizoaf- fective disorder. When deciding whether an individual’s presentation meets Criterion C, the clinician should review the total duration of psychotic illness (i.e., both active and re- of treatment with antidepressant and / or mood-stabilizing medication) accompanied the psychotic symptoms. This determination requires sufficient historical information and clinical judgment. For example, an individual with a 4-year history of active and residual symptoms of schizophrenia develops depressive and manic episodes that, taken together, do not occupy more than 1 year during the 4-year history of psychotic illness. This presen- tation would not meet Criterion C. In addition to the five symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. Occupational functioning is frequently impaired, but this is not a defining criterion (in contrast to schizophrenia). Restricted social contact and difficulties with self—care are as- sociated with schizoaffective disorder, but negative symptoms may be less severe and less persistent than those seen in schizophrenia. Anosog-nosia (i.e., poor insight) is also com- mon in schizoaffective disorder, but the deficits in insight may be less severe and perva- sive than those in schizophrenia. Individuals with schizoaffective disorder may be at increased risk for later developing episodes of major depressive disorder or bipolar disor- der if mood symptoms continue following the remission of symptoms meeting Criterion A for schizophrenia. There may be associated alcohol and other substance-related disorders. There are no tests or biological measures that can assist in making the diagnosis of schizoaffective disorder. Whether schizoaffective disorder differs from schizophrenia with regard to associated features such as structural or functional brain abnormalities, cognitive deficits, or genetic risk factors is not clear. Schizoaffective disorder appears to be about one-third as common as schizophrenia. Life- time prevalence of schizoaffective disorder is estimated to be 0.3%. The incidence of schizoaffective disorder is higher in females than in males, mainly due to an increased in- cidence of the depressive type among females. The typical age at onset of schizoaffective disorder is early adulthood, although onset can occur anywhere from adolescence to late in life. A significant number of individuals diag- nosed with another psychotic illness initially will receive the diagnosis schizoaffective dis- order later when the pattern of mood episodes has become more apparent. With the current diagnostic Criterion C, it is expected that the diagnosis for some individuals will convert from schizoaffective disorder to another disorder as mood symptoms become less prominent. The prognosis for schizoaffective disorder is somewhat better than the prog- nosis for schizophrenia but worse than the prognosis for mood disorders. Schizoaffective disorder may occur in a variety of temporal patterns. The following is a typical pattern: An individual may have pronounced auditory hallucinations and per- secutory delusions for 2 months before the onset of a prominent major depressive episode. The psychotic symptoms and the full major depressive episode are then present for 3 months. Then, the individual recovers completely from the major depressive episode, but the psy- chotic symptoms persist for another month before they too disappear. During this period of illness, the individual’s symptoms concurrently met criteria for a major depressive ep- isode and Criterion A for schizophrenia, and during this same period of illness, auditory hallucinations and delusions were present both before and after the depressive phase. The total period of illness lasted for about 6 months, with psychotic symptoms alone present during the initial 2 months, both depressive and psychotic symptoms present during the next 3 months, and psychotic symptoms alone present during the last month. In this in- stance, the duration of the depressive episode was not brief relative to the total duration of the psychotic disturbance, and thus the presentation qualifies for a diagnosis of schizoaf- fective disorder. The expression of psychotic symptoms across the lifespan is variable. Depressive or manic symptoms can occur before the onset of psychosis, during acute psychotic episodes, during residual periods, and after cessation of psychosis. For example, an individual might present with prominent mood symptoms during the prodromal stage of schizo— phrenia. This pattern is not necessarily indicative of schizoaffective disorder, since it is the co—occurrence of psychotic and mood symptoms that is diagnostic. For an individual with symptoms that clearly meet the criteria for schizoaffective disorder but who on further fol- low-up only presents with residual psychotic symptoms (such as subthreshold psychosis and / or prominent negative symptoms), the diagnosis may be changed to schizophrenia, as the total proportion of psychotic illness compared with mood symptoms becomes more prominent. Schizoaffective disorder, bipolar type, may be more common in young adults, whereas schizoaffective disorder, depressive type, may be more common in older adults. Genetic and physiological. Among individuals with schizophrenia, there may be an in- creased risk for schizoaffective disorder in first-degree relatives. The risk for schizoaffec- schizophrenia, bipolar disorder, or schizoaffective disorder. Cultural and socioeconomic factors must be considered, particularly when the individual and the clinician do not share the same cultural and economic background. Ideas that ap- pear to be delusional in one culture (e.g., witchcraft) may be commonly held in another. There is also some evidence in the literature for the overdiagnosis of schizophrenia com- pared with schizoaffective disorder in African American and Hispanic populations, so care must be talgen to ensure a culturally appropriate evaluation that includes both psy- chotic and affective symptoms. The lifetime risk of suicide for schizophrenia and schizoaffective disorder is 5%, and the presence of depressive symptoms is correlated with a higher risk for suicide. There is ev- idence that suicide rates are higher in North American populations than in European, Eastern European, South American, and Indian populations of individuals with schizo- phrenia or schizoaffective disorder. Functional Consequences of Schizoaffective DisorderSchizoaffective disorder is associated with social and occupational dysfunction, but dys- function is not a diagnostic criterion (as it is for schizophrenia), and there is substantial variability between individuals diagnosed with schizoaffective disorder. Other mental disorders and medical conditions. A wide variety of psychiatric and med- ical conditions can manifest with psychotic and mood symptoms that must be considered in the differential diagnosis of schizoaffective disorder. These include psychotic disorder due to another medical condition; delirium; major neurocognitive disorder; substance/ with psychotic features; major depressive disorder with psychotic features; depressive or bipolar disorders with catatonic features; schizotypal, schizoid, or paranoid personality disorders. Medical conditions and substance use can present with a combination of psy- chotic and mood symptoms, and thus psychotic disorder due to another medical condition needs to be excluded. Distinguishing schizoaffective disorder from schizophrenia and from depressive and bipolar disorders with psychotic features is often difficult. Criterion C is designed to separate schizoaffective disorder from schizophrenia, and Criterion B is designed to distinguish schizoaffective disorder from a depressive or bipolar disorder with psychotic features. More specifically, schizoaffective disorder can be distinguished from a depressive or bipolar disorder with psychotic features due to the presence of prom- inent delusions and / or hallucinations for at least 2 weeks in the absence of a major mood episode. In contrast, in depressive or bipolar disorders with psychotic features, the psy- chotic features primarily occur during the mood episode(s). Because the relative propor- tion of mood to psychotic symptoms may change over time, the appropriate diagnosis may change from and to schizoaffective disorder (e.g., a diagnosis of schizoaffective dis- first 6 months of a persistent psychotic illness would be changed to schizophrenia if active of another mood episode). Psychotic disorder due to another medical condition. Other medical conditions and substance use can manifest with a combination of psychotic and mood symptoms, and thus psychotic disorder due to another medical condition needs to be excluded. Schizophrenia, bipolar, and depressive disorders. Distinguishing schizoaffective dis- order from schizophrenia and from depressive and bipolar disorders with psychotic fea- tures is often difficult. Criterion C is designed to separate schizoaffective disorder from schizophrenia, and Criterion B is designed to distinguish schizoaffective disorder from a depressive or bipolar disorder with psychotic features. More specifically, schizoaffective disorder can be distinguished from a depressive or bipolar disorder with psychotic features based on the presence of prominent delusions and / or hallucinations for at least 2 weeks in the absence of a major mood episode. In contrast, in depressive or bipolar disorder with psychotic features, the psychotic features primarily occur during the mood episode(s). Be- cause the relative proportion of mood to psychotic symptoms may change over time, the appropriate diagnosis may change from and to schizoaffective disorder. (For example, a diagnosis of schizoaffective disorder for a severe and prominent major depressive episode lasting 3 months during the first 6 months of a chronic psychotic illness would be changed years without a recurrence of another mood episode.) Many individuals diagnosed with schizoaffective disorder are also diagnosed with other mental disorders, especially substance use disorders and anxiety disorders. Similarly, the incidence of medical conditions is increased above base rate for the general population and leads to decreased life expectancy. A. Presence of one or both of the following symptoms: 1. Delusions. 2. Hallucinations.B. There is evidence from the history, physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or withdrawal or after exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by a psychotic disorder that is not substance/ medication—induced. Such evidence of an independent psychotic disorder could in- clude the following: The symptoms preceded the onset of the substance/medication use; the symptoms persist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence of an indepen- dent non-substance/medication-induced psychotic disorder (e.g., a history of recur- rent non-substance/medication-re|ated episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Note: This diagnosis should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and when they are sufficiently severe to warrant clinical attention. Coding note: The |CD-9-CM and |CD-10—CM codes for the [specific substance/medica- tion]-induced psychotic disorders are indicated in the table below. Note that the |CD-10- CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the sub- stance-induced psychotic disorder, the 4th position character is “1 and the clinician should record “mild [substance] use disorder” before the substance—induced psychotic disorder (e.g., “mild cocaine use disorder with cocaine-induced psychotic disorder”). It a moderate or severe substance use disorder is comorbid with the substance-induced psychotic disor- der, the 4th position character is “,"2 and the clinician should record “moderate [substance] use disorder” or “severe [substance] use disorder," depending on the severity of the co- morbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one-time heavy use of the substance). then the 4th position character is “9“ and the cli- nician should record only the substance-induced psychotic disorder. With use disorder. Without disorder, moderate useAlcohol 291.9 F10.159 F10.259 F10.959Cannabis 292.9 F12.159 F12.259 F12.959Phencyclidine 292.9 F16.159 F16.259 F16.959Other hallucinogen 292.9 F16.159 F16.259 F16.959Inhalant 292.9 F18.159 F18.259 F18.959Sedative, hypnotic, or 292.9 F13.159 F13.259 F13.959Amphetamine (or other 292.9 F15.159 F15.259 F15.959Cocaine 292.9 F14.159 F14.259 F14.959Other (or unknown) substance 292.9 F19.159 F19.259 F19.959Specify it (see Table 1 in the chapter “Substance-Related and Addictive Disorders” for diag- noses associated with substance class): With onset during intoxication: It the criteria are met for intoxication with the sub- stance and the symptoms develop during intoxication. With onset during withdrawal: If the criteria are met for withdrawal from the sub- stance and the symptoms develop during, or shortly after, withdrawal. Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, abnormal psychomotor behavior. and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See CIinician-Rated Dimensions of Psychosis Symptom Severity in the chap- Note: Diagnosis of substance/medication-induced psychotic disorder can be made without using this severity specifier. lCD-9-CM. The name of the substance/medication-induced psychotic disorder begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the delusions or hallucinations. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., dexamethasone), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of sub- stance is unknown, the category "unknown substance” should be used. The name of the disorder is followed by the specification of onset (i.e., onset during in- toxication, onset during withdrawal). Unlike the recording procedures for ICD-lO-CM, which combine the substance-induced disorder and substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of delusions occurring during intoxication in a man with a severe co- caine use disorder, the diagnosis is 292.9 cocaine-induced psychotic disorder, with onset during intoxication. An additional diagnosis of 304.20 severe cocaine use disorder is also given. When more than one substance is judged to play a significant role in the development of psychotic symptoms, each should be listed separately (e.g., 292.9 cannabis-induced psy- chotic disorder with onset during intoxication, with severe cannabis use disorder; 292.9 phencyclidine-induced psychotic disorder, with onset during intoxication, with mild phencyclidine use disorder). |CD-10-CM. The name of the substance/medicati0n-induced psychotic disorder begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the delusions or hallucinations. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class and presence or absence of a comorbid substance use disorder. For substances that do not fit into any of the classes (e.g., dexa- methasone), the code for ”other substance" with no comorbid substance use should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category "unknown substance” with no comorbid sub- stance use should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word ”with,” followed by the name of the substance—induced psychotic disorder, followed by the specification of onset (i.e., onset during intoxication, onset during withdrawal). For example, in the case of delusions occurring during intoxi- cation in a man with a severe cocaine use disorder, the diagnosis is F14.259 severe cocaine use disorder with cocaine-induced psychotic disorder, with onset during intoxication. A separate diagnosis of the comorbid severe cocaine use disorder is not given. If the sub- (e.g., after a one-time heavy use of the substance), no accompanying substance use disor- der is noted (e.g., F16.959 phencyclidine-induced psychotic disorder, with onset during in- toxication). When more than one substance is judged to play a significant role in the development of psychotic symptoms, each should be listed separately (e.g., F12.259 severe cannabis use disorder with cannabis-induced psychotic disorder, with onset during intox- ication; F16.159 mild phencyclidine use disorder with phencyclidine-induced psychotic disorder, with onset during intoxication). The essential features of substance /medication-induced psychotic disorder are prominent delusions and/ or hallucinations (Criterion A) that are judged to be due to the physiolog- ical effects of a substance/medication (i.e., a drug of abuse, a medication, or a toxin expo- sure) (Criterion B). Hallucinations that the individual realizes are substance/medication- induced are not included here and instead would be diagnosed as substance intoxication or substance withdrawal with the accompanying specifier "with perceptual disturbances” (applies to alcohol withdrawal; cannabis intoxication; sedative, hypnotic, or anxiolytic withdrawal; and stimulant intoxication). A substance/medication-induced psychotic disorder is distinguished from a primary psychotic disorder by considering the onset, course, and other factors. For drugs of abuse, there must be evidence from the history, physical examination, or laboratory findings of substance use, intoxication, or withdrawal. Substance/ medication-induced psychotic disorders arise during or soon after exposure to a medication or after substance intoxica- tion or withdrawal but can persist for weeks, whereas primary psychotic disorders may precede the onset of substance/medication use or may occur during times of sustained ab- stinence. Once initiated, the psychotic symptoms may continue as long as the substance/ medication use continues. Another consideration is the presence of features that are atyp- ical of a primary psychotic disorder (e.g., atypical age at onset or course). For example, the appearance of delusions de novo in a person older than 35 years without a known history of a primary psychotic disorder should suggest the possibility of a substance/medication- induced psychotic disorder. Even a prior history of a primary psychotic disorder does not rule out the possibility of a substance /medication-induced psychotic disorder. In contrast, factors that suggest that the psychotic symptoms are better accounted for by a primary psychotic disorder include persistence of psychotic symptoms for a substantial period of time (i.e., a month or more) after the end of substance intoxication or acute substance with- drawal or after cessation of medication use; or a history of prior recurrent primary psy— chotic disorders. Other causes of psychotic symptoms must be considered even in an individual with substance intoxication or withdrawal, because substance use problems are not uncommon among individuals with non-substance/medication-induced psychotic disorders. In addition to the four symptom domain areas identified in the diagnostic criteria, the assessment of cognition, depression, and mania symptom domains is vital for making crit- ically important distinctions between the various schizophrenia spectrum and other psy- chotic disorders. Psychotic disorders can occur in association with intoxication with the following classes of substances: alcohol; cannabis; hallucinogens, including phencyclidine and related sub— stances; inhalants; sedatives, hypnotics, and anxiolytics; stimulants (including cocaine); and other (or unknown) substances. Psychotic disorders can occur in association with with- drawal from the following classes of substances: alcohol; sedatives, hypnotics, and anxio- lytics; and other (or unknown) substances. Some of the medications reported to evoke psychotic symptoms include anesthetics and analgesics, anticholinergic agents, anticonvulsants, antihistamines, antihypertensive and cardiovascular medications, antimicrobial medications, antiparkinsonian medica- tions, chemotherapeutic agents (e.g., cyclosporine, procarbazine), corticosteroids, gastro- intestinal medications, muscle relaxants, nonsteroidal anti-inflammatory medications, other over-the-counter medications (e.g., phenylephrine, pseudoephedrine), antidepres- sant medication, and disulfiram. Toxins reported to induce psychotic symptoms include anticholinesterase, organophosphate insecticides, sarin and other nerve gases, carbon monoxide, carbon dioxide, and volatile substances such as fuel or paint. Prevalence of substance/medication—induced psychotic disorder in the general popula- tion is unknown. Between 7% and 25% of individuals presenting with a first episode of psychosis in different settings are reported to have substance/medication-induced psy- chotic disorder. The initiation of the disorder may vary considerably with the substance. For example, smoking a high dose of cocaine may produce psychosis within minutes, whereas days or weeks of high-dose alcohol or sedative use may be required to produce psychosis. Alco- hol-induced psychotic disorder, with hallucinations, usually occurs only after prolonged, heavy ingestion of alcohol in individuals who have moderate to severe alcohol use disorder, and the hallucinations are generally auditory in nature. tures. Persecutory delusions may rapidly develop shortly after use of amphetamine or a similarly acting sympathomimetic. The hallucination of bugs or vermin crawling in or un- der the skin (formication) can lead to scratching and extensive skin excoriations. Cannabis- involves persecutory delusions, marked anxiety, emotional lability, and depersonalization. The disorder usually remits within a day but in some cases may persist for a few days. Substance/medication-induced psychotic disorder may at times persist when the offend- ing agent is removed, such that it may be difficult initially to distinguish it from an indepen- dent psychotic disorder. Agents such as amphetamines, phencyclidine, and cocaine have been reported to evoke temporary psychotic states that can sometimes persist for weeks or longer despite removal of the agent and treatment with neuroleptic medication. In later life, poly— pharmacy for medical conditions and exposure to medications for parkinsonism, cardiovas- cular disease, and other medical disorders may be associated with a greater likelihood of psychosis induced by prescription medications as opposed to substances of abuse. With substances for which relevant blood levels are available (e.g., blood alcohol level, other quantifiable blood levels such as digoxin), the presence of a level consistent with tox- icity may increase diagnostic certainty. Substance/medication-induced psychotic disorder is typically severely disabling and consequently is observed most frequently in emergency rooms, as individuals are often brought to the acute-care setting when it occurs. However, the disability is typically self- limited and resolves upon removal of the offending agent. Substance intoxication or substance withdrawal. Individuals intoxicated with stimu- lants, cannabis, the opioid meperidine, or phencyclidine, or those withdrawing from alco- hol or sedatives, may experience altered perceptions that they recognize as drug effects. If reality testing for these experiences remains intact (i.e., the individual recognizes that the perception is substance induced and neither believes in nor acts on it), the diagnosis is not substance/medication-induced psychotic disorder. Instead, substance intoxication or substance withdrawal, with perceptual disturbances, is diagnosed (e.g., cocaine intoxica- tion, with perceptual disturbances). ”Flashback” hallucinations that can occur long after the use of hallucinogens has stopped are diagnosed as hallucinogen persisting perception disorder. If substance/medication-induced psychotic symptoms occur exclusively during the course of a delirium, as in severe forms of alcohol withdrawal, the psychotic symptoms are considered to be an associated feature of the delirium and are not diagnosed sepa- rately. Delusions in the context of a major or mild neurocognitive disorder would be di- agnosed as major or mild neurocognitive disorder, with behavioral disturbance. Psychotic Disorder Due to Another Medical Condition 115Primary psychotic disorder. A substance/medication- induced psychotic disorder is distinguished from a primary psychotic disorder, such as schizophrenia, schizoaffective disorder, delusional disorder, brief psychotic disorder, other specified schizophrenia spectrum and other psychotic disorder, or unspecified schizophrenia spectrum and other psychotic disorder, by the fact that a substance is judged to be etiologically related to the symptoms. Psychotic disorder due to another medical condition. A substance/medication—induced psychotic disorder due to a prescribed treatment for a mental or medical condition must have its onset while the individual is receiving the medication (or during withdrawal, if there is a withdrawal syndrome associated with the medication). Because individuals with medical conditions often take medications for those conditions, the clinician must con- sider the possibility that the psychotic symptoms are caused by the physiological conse- quences of the medical condition rather than the medication, in which case psychotic disorder due to another medical condition is diagnosed. The history often provides the primary basis for such a judgment. At times, a change in the treatment for the medical con- dition (e.g., medication substitution or discontinuation) may be needed to determine em- pirically for that individual whether the medication is the causative agent. If the clinician has ascertained that the disturbance is attributable to both a medical condition and sub- stance/medication use, both diagnoses (i.e., psychotic disorder due to another medical condition and substance/medication-induced psychotic disorder) may be given. Due to Another Medical ConditionA. Prominent hallucinations or delusions.B. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct pathophysiological consequence of another medical condi- tion. C. The disturbance is not better explained by another mental disorder. D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional. or other important areas of functioning. Specify whether:Code based on predominant symptom: 293.81 (F06.2) With delusions: If delusions are the predominant symptom. 293.82 (F06.0) With hallucinations: If hallucinations are the predominant symptom. Coding note: Include the name of the other medical condition in the name of the mental disorder (e.g., 293.81 [F06.2] psychotic disorder due to malignant lung neoplasm, with de— lusions). The other medical condition should be coded and listed separately immediately before the psychotic disorder due to the medical condition (e.g., 162.9 [C3490] malignant lung neoplasm; 293.81 [F06.2] psychotic disorder due to malignant lung neoplasm, with delusions). Specify current severity:Severity is rated by a quantitative assessment of the primary symptoms of psychosis, including delusions, hallucinations, abnormal psychomotor behavior, and negative symptoms. Each of these symptoms may be rated for its current severity (most severe in the last 7 days) on a 5-point scale ranging from 0 (not present) to 4 (present and severe). (See Clinician-Rated Dimensions of Psychosis Symptom Severity in the chap- Note: Diagnosis of psychotic disorder due to another medical condition can be made without using this severity specifier. In addition to the symptom domain areas identified in the diagnostic criteria, the assess- ment of cognition, depression, and mania symptom domains is vital for making critically important distinctions between the various schizophrenia spectrum and other psychotic disorders. The essential features of psychotic disorder due to another medical condition are promi- nent delusions or hallucinations that are judged to be attributable to the physiological ef— fects of another medical condition and are not better explained by another mental disorder (e.g., the symptoms are not a psychologically mediated response to a severe medical con- dition, in which case a diagnosis of brief psychotic disorder, with marked stressor, would be appropriate). Hallucinations can occur in any sensory modality (i.e., visual, olfactory, gustatory, tac- tile, or auditory), but certain etiological factors are likely to evoke specific hallucinatory phenomena. Olfactory hallucinations are suggestive of temporal lobe epilepsy. Hallucina- tions may vary from simple and unformed to highly complex and organized, depending on etiological and environmental factors. Psychotic disorder due to another medical con- dition is generally not diagnosed if the individual maintains reality testing for the hallu- cinations and appreciates that they result from the medical condition. Delusions may have a variety of themes, including somatic, grandiose, religious, and, most commonly, perse- cutory. On the whole, however, associations between delusions and particular medical conditions appear to be less specific than is the case for hallucinations. In determining whether the psychotic disturbance is attributable to another medical condition, the presence of a medical condition must be identified and considered to be the etiology of the psychosis through a physiological mechanism. Although there are no infallible guidelines for determining whether the relationship between the psychotic distur- bance and the medical condition is etiological, several considerations provide some guidance. One consideration is the presence of a temporal association between the onset, exacerba- tion, or remission of the medical condition and that of the psychotic disturbance. A second consideration is the presence of features that are atypical for a psychotic disorder (e.g., atypical age at onset or presence of Visual or olfactory hallucinations). The disturbance must other mental disorder (e.g., an adjustment disorder). The temporal association of the onset or exacerbation of the medical condition offers the greatest diagnostic certainty that the delusions or hallucinations are attributable to a med- ical condition. Additional factors may include concomitant treatments for the underlying medical condition that confer a risk for psychosis independently, such as steroid treatment for autoimmune disorders. Prevalence rates for psychotic disorder due to another medical condition are difficult to es- timate given the wide variety of underlying medical etiologies. Lifetime prevalence has Psychotic Disorder Due to Another Medical Condition 117 been estimated to range from 0.21% to 0.54%. When the prevalence findings are stratified by age group, individuals older than 65 years have a significantly greater prevalence of 0.74% compared with those in younger age groups. Rates of psychosis also vary according to the underlying medical condition; conditions most commonly associated with psy- chosis include untreated endocrine and metabolic disorders, autoimmune disorders (e.g., systemic lupus erythematosus, N—methyl—D—aspartate (NMDA) receptor autoimmune en- cephalitis), or temporal lobe epilepsy. Psychosis due to epilepsy has been further differ— entiated into ictal, postictal, and interictal psychosis. The most common of these is postictal psychosis, observed in 2%—7.8% of epilepsy patients. Among older individuals, there may be a higher prevalence of the disorder in females, although additional gender-related fea- tures are not clear and vary considerably with the gender distributions of the underlying medical conditions. Psychotic disorder due to another medical condition may be a single transient state or it may be recurrent, cycling with exacerbations and remissions of the underlying medical condition. Although treatment of the underlying medical condition often results in a res- olution of the psychosis, this is not always the case, and psychotic symptoms may persist long after the medical event (e.g., psychotic disorder due to focal brain injury). In the con- text of chronic conditions such as multiple sclerosis or chronic interictal psychosis of epi- lepsy, the psychosis may assume a long-term course. The expression of psychotic disorder due to another medical condition does not differ substantially in phenomenology depending on age at occurrence. However, older age groups have a higher prevalence of the disorder, which is most likely due to the increasing medical burden associated with advanced age and the cumulative effects of deleterious exposures and age-related processes (e.g., atherosclerosis). The nature of the underlying medical conditions is likely to change across the lifespan, with younger age groups more affected by epilepsy, head trauma, autoimmune, and neoplastic diseases of early to mid- life, and older age groups more affected by stroke disease, anoxic events, and multiple sys- tem comorbidities. Underlying factors with increasing age, such as preexisting cognitive impairment as well as vision and hearing impairments, may incur a greater risk for psy- chosis, possibly by serving to lower the threshold for experiencing psychosis. Course modifiers. Identification and treatment of the underlying medical condition has the greatest impact on course, although preexisting central nervous system injury may confer a worse course outcome (e.g., head trauma, cerebrovascular disease). The diagnosis of psychotic disorder due to another medical condition depends on the clin- ical condition of each individual, and the diagnostic tests will vary according to that con- dition. A variety of medical conditions may cause psychotic symptoms. These include neurological conditions (e.g., neoplasms, cerebrovascular disease, Huntington‘s disease, multiple sclerosis, epilepsy, auditory or visual nerve injury or impairment, deafness, migraine, central nervous system infections), endocrine conditions (e.g., hyper- and hypo- thyroidism, hyper- and hypoparathyroidism, hyper- and hypoadrenocorticism), metabolic conditions (e.g., hypoxia, hypercarbia, hypoglycemia), fluid or electrolyte imbalances, hepatic or renal diseases, and autoimmune disorders with central nervous system involve- ment (e.g., systemic lupus erythematosus). The associated physical examination findings, laboratory findings, and patterns of prevalence or onset reflect the etiological medical condition. Suicide risk in the context of psychotic disorder due to another medical condition is not clearly delineated, although certain conditions such as epilepsy and multiple sclerosis are associated with increased rates of suicide, which may be further increased in the presence of psychosis. Functional Consequences of Psychotic DisorderDue to Another Medical ConditionFunctional disability is typically severe in the context of psychotic disorder due to another medical condition but will vary considerably by the type of condition and likely improve with successful resolution of the condition. Delirium. Hallucinations and delusions commonly occur in the context of a delirium; however, a separate diagnosis of psychotic disorder due to another medical condition is not given if the disturbance occurs exclusively during the course of a delirium. Delusions in the context of a major or mild neurocognitive disorder would be diagnosed as major or mild neurocognitive disorder, with behavioral disturbance. Substance/medication-induced psychotic disorder. If there is evidence of recent or prolonged substance use (including medications with psychoactive effects), withdrawal from a substance, or exposure to a toxin (e.g., LSD [lysergic acid diethylamide] intoxica- tion, alcohol withdrawal), a substance/medication—induced psychotic disorder should be considered. Symptoms that occur during or shortly after (i.e., within 4 weeks) of substance intoxication or withdrawal or after medication use may be especially indicative of a sub- stance-induced psychotic disorder, depending on the character, duration, or amount of the substance used. If the clinician has ascertained that the disturbance is due to both a medical condition and substance use, both diagnoses (i.e., psychotic disorder due to an- given. Psychotic disorder. Psychotic disorder due to another medical condition must be distin- guished from a psychotic disorder (e.g., schizophrenia, delusional disorder, schizoaffective disorder) or a depressive or bipolar disorder, with psychotic features. In psychotic disor- ders and in depressive or bipolar disorders, with psychotic features, no specific and direct causative physiological mechanisms associated with a medical condition can be demon- strated. Late age at onset and the absence of a personal or family history of schizophrenia or delusional disorder suggest the need for a thorough assessment to rule out the diagno- sis of psychotic disorder due to another medical condition. Auditory hallucinations that involve voices speaking complex sentences are more characteristic of schizophrenia than of psychotic disorder due to a medical condition. Other types of hallucinations (e.g., vi- sual, olfactory) commonly signal a psychotic disorder due to another medical condition or a substance/medication-induced psychotic disorder. Psychotic disorder due to another medical condition in individuals older than 80 years is associated with concurrent major neurocognitive disorder (dementia). Catatonia can occur in the context of several disorders, including neurodevelopmental, psychotic, bipolar, depressive disorders, and other medical conditions (e.g., cerebral folate deficiency, rare autoimmune and paraneoplastic disorders. The manual does not treat catatonia as an independent class but recognizes a) catatonia associated with another men— tal disorder (i.e., a neurodevelopmental, psychotic disorder, a bipolar disorder, a depres— sive disorder, or other mental disorder), b) catatonic disorder due to another medical condition, and c) unspecified catatonia. Catatonia is defined by the presence of three or more of 12 psychomotor features in the diagnostic criteria for catatonia associated with another mental disorder and catatonic dis- order due to another medical condition. The essential feature of catatonia is a marked psy- chomotor disturbance that may involve decreased motor activity, decreased engagement during interview or physical examination, or excessive and peculiar motor activity. The clinical presentation of catatonia can be puzzling, as the psychomotor disturbance may range from marked unresponsiveness to marked agitation. Motoric immobility may be se- vere (stupor) or moderate (catalepsy and waxy flexibility). Similarly, decreased engage- ment may be severe (mutism) or moderate (negativism). Excessive and peculiar motor behaviors can be complex (e.g., stereotypy) or simple (agitation) and may include echola- lia and echopraxia. In extreme cases, the same individual may wax and wane between de- creased and excessive motor activity. The seemingly opposing clinical features and variable manifestations of the diagnosis contribute to a lack of awareness and decreased recognition of catatonia. During severe stages of catatonia, the individual may need care- ful supervision to avoid self—harm or harming others. There are potential risks from mal- nutrition, exhaustion, hyperpyrexia and self—inflicted injury. 293.89 (F06.1)A. The clinical picture is dominated by three (or more) of the following symptoms: Stupor (i.e., no psychomotor activity; not actively relating to environment). Catalepsy (i.e., passive induction of a posture held against gravity). Waxy flexibility (i.e., slight, even resistance to positioning by examiner). Mutism (i.e., no, or very little. verbal response [exclude if known aphasial). Negativism (i.e., opposition or no response to instructions or external stimuli). Posturing (i.e., spontaneous and active maintenance of a posture against gravity). Mannerism (i.e., odd, circumstantial caricature of normal actions).Stereotypy (i.e., repetitive, abnormally frequent, non-goal-directed movements).Agitation, not influenced by external stimuli.10. Grimacing.11. Echolalia (i.e., mimicking another‘s speech).12. Echopraxia (i.e., mimicking another’s movements).Coding note: Indicate the name of the associated mental disorder when recording the name of the condition (i.e., 293.89 [F06.1] catatonia associated with major depressive dis- order). Code first the associated mental disorder (e.g., neurodevelopmental disorder, brief psychotic disorder, schizophreniform disorder. schizophrenia, schizoaffective disorder, bipolar disorder, major depressive disorder, or other mental disorder) (e.g., 295.70 [F251] schizoaffective disorder, depressive type; 293.89 [F06.1] catatonia associated with schizoaffective disorder). Catatonia associated with another mental disorder (catatonia specifier) may be used when criteria are met for catatonia during the course of a neurodevelopmental, psychotic, bipo- lar, depressive, or other mental disorder. The catatonia specifier is appropriate when the clinical picture is characterized by marked psychomotor disturbance and involves at least three of the 12 diagnostic features listed in Criterion A. Catatonia is typically diagnosed in an inpatient setting and occurs in up to 35% of individuals with schizophrenia, but the ma- jority of catatonia cases involve individuals with depressive or bipolar disorders. Before the catatonia specifier is used in neurodevelopmental, psychotic, bipolar, depressive, or other mental disorders, a wide variety of other medical conditions need to be ruled out; these conditions include, but are not limited to, medical conditions due to infectious, met- abolic, or neurological conditions (see ”Catatonic Disorder Due to Another Medical Con- dition”). Catatonia can also be a side effect of a medication (see the chapter ”Medication- Induced Movement Disorders and Other Adverse Effects of Medication”). Because of the seriousness of the complications, particular attention should be paid to the possibility that the catatonia is attributable to 333.92 (G210) neuroleptic malignant syndrome. Diagnostic Criteria 293.89 (F06.1)A. The clinical picture is dominated by three (or more) of the following symptoms: 1. Stupor (i.e., no psychomotor activity; not actively relating to environment). Catalepsy (i.e., passive induction of a posture held against gravity). Waxy flexibility (i.e., slight, even resistance to positioning by examiner). Mutism (i.e., no, or very little, verbal response [Note: not applicable if there is an established aphasia]). Negativism (i.e., opposition or no response to instructions or external stimuli). Posturing (i.e., spontaneous and active maintenance of a posture against gravity). Mannerism (i.e., odd, circumstantial caricature of normal actions).Stereotypy (i.e., repetitive, abnormally frequent, non-goaI-directed movements).9. Agitation, not influenced by external stimuli.10. Grimacing.11. Echolalia (i.e., mimicking another’s speech).12. Echopraxia (i.e., mimicking another’s movements).B. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct pathophysiological consequence of another medical condition. . The disturbance is not better explained by another mental disorder (e.g., a manic episode). . The disturbance does not occur exclusively during the course of a delirium. . The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Coding note: Include the name of the medical condition in the name of the mental disor- der (e.g., 293.89 [F06.1]) catatonic disorder due to hepatic encephalopathy). The other medical condition should be coded and listed separately immediately before the cata- tonic disorder due to the medical condition (e.g., 572.2 [K7190] hepatic encephalopathy; 293.89 [F06.1] catatonic disorder due to hepatic encephalopathy). The essential feature of catatonic disorder due to another medical condition is the presence of catatonia that is judged to be attributed to the physiological effects of another medical condition. Catatonia can be diagnosed by the presence of at least three of the 12 clinical fea- tures in Criterion A. There must be evidence from the history, physical examination, or laboratory findings that the catatonia is attributable to another medical condition (Crite- rion B). The diagnosis is not given if the catatonia is better explained by another mental disorder (e.g., manic episode) (Criterion C) or if it occurs exclusively during the course of a delirium (Criterion D). A variety of medical conditions may cause catatonia, especially neurological conditions (e.g., neoplasms, head trauma, cerebrovascular disease, encephalitis) and metabolic con- ditions (e.g., hypercalcemia, hepatic encephalopathy, homocystinuria, diabetic ketoacido- sis). The associated physical examination findings, laboratory findings, and patterns of prevalence and onset reflect those of the etiological medical condition. A separate diagnosis of catatonic disorder due to another medical condition is not given if the catatonia occurs exclusively during the course of a delirium or neuroleptic malignant syndrome. If the individual is currently taking neuroleptic medication, consideration should be given to medication-induced movement disorders (e.g., abnormal positioning may be due to neuroleptic-induced acute dystonia) or neuroleptic malignant syndrome (e.g., catatonic-like features may be present, along with associated vital sign and / or labo- ratory abnormalities). Catatonic symptoms may be present in any of the following five psychotic disorders: brief psychotic disorder, schizophreniform disorder, schizophrenia, schizoaffective disorder, and substance/medication-induced psychotic disorder. It may also be present in some of the neurodevelopmental disorders, in all of the bipolar and de- pressive disorders, and in other mental disorders. This category applies to presentations in which symptoms characteristic of catatonia cause clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning but either the nature of the underlying mental disorder or other medical condition is unclear, full criteria for catatonia are not met, or there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). Coding note: Code first 781.99 (R29.818) other symptoms involving nervous and muscu- loskeletal systems, followed by 293.89 (F06.1) unspecified catatonia. 298.8 (F28)This category applies to presentations in which symptoms characteristic of a schizophre- pairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the schizophrenia spectrum and other psychotic disorders diagnostic class. The other specified schizophrenia spectrum and oth- er psychotic disorder category is used in situations in which the clinician chooses to com- municate the specific reason that the presentation does not meet the criteria for any specific schizophrenia spectrum and other psychotic disorder. This is done by recording “oth- er specified schizophrenia spectrum and other psychotic disorder“ followed by the specific reason (e.g., “persistent auditory hallucinations"). Examples of presentations that can be specified using the “other specified” designation include the following: 1. Perslstent auditory hallucinations occurring in the absence of any other features. 2. Delusions with significant overlapping mood episodes: This includes persistent delusions with periods of overlapping mood episodes that are present for a substantial portion of the delusional disturbance (such that the criterion stipulating only brief mood disturbance in delusional disorder is not met). 3. Attenuated psychosis syndrome: This syndrome is characterized by psychotic-like symptoms that are below a threshold for full psychosis (e.g., the symptoms are less severe and more transient, and insight is relatively maintained). 4. Deiusionai symptoms in partner of individual with delusionai disorder: In the context of a relationship, the delusional material from the dominant partner provides content for delusional belief by the individual who may not otherwise entirely meet cri- teria for delusional disorder. 298.9 (F29)This category applies to presentations in which symptoms characteristic of a schizophre— pairment in social, occupational. or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the schizophrenia spectrum and oth- er psychotic disorders diagnostic class. The unspecified schizophrenia spectrum and oth- er psychotic disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific schizophrenia spectrum and other psychotic disorder, and includes presentations in which there is insufficient informa- tion to make a more specific diagnosis (e.g., in emergency room settings). Bl polar and related disorders are separated from the depressive disorders in DSM-5 and placed between the chapters on schizophrenia spectrum and other psychotic disorders and depressive disorders in recognition of their place as a bridge between the two diagnostic classes in terms of symptomatology, family history, and genetics. The di- agnoses included in this chapter are bipolar I disorder, bipolar II disorder, cyclothymic disorder, substance/medication—induced bipolar and related disorder, bipolar and relat- ed disorder dueto another medical condition, other specified bipolar and related disor- der, and unspecified bipolar and related disorder. The bipolar I disorder criteria represent the modern understanding of the classic manic-depressive disorder or affective psychosis described in the nineteenth century, dif- fering from that classic description only to the extent that neither psychosis nor the lifetime experience of a major depressive episode is a requirement. However, the vast majority of individuals whose symptoms meet the criteria for a fully syndromal manic episode also experience major depressive episodes during the course of their lives. Bipolar II disorder, requiring the lifetime experience of at least one episode of major de- pression and at least one hypomanic episode, is no longer thought to be a "milder" condition than bipolar I disorder, largely because of the amount of time individuals with this con- dition spend in depression and because the instability of mood experienced by individuals with bipolar II disorder is typically accompanied by serious impairment in work and social functioning. The diagnosis of cyclothymic disorder is given to adults who experience at least 2 years (for children, a full year) of both hypomanic and depressive periods without ever fulfilling the criteria for an episode of mania, hypomania, or major depression. A large number of substances of abuse, some prescribed medications, and several medical conditions can be associated with manic-like phenomena. This fact is recognized in the diagnoses of substance/medication-induced bipolar and related disorder and bipo- lar and related disorder due to another medical condition. The recognition that many individuals, particularly children and, to a lesser extent, ad- olescents, experience bipolar-like phenomena that do not meet the criteria for bipolar I, bi- polar II, or cyclothymic disorder is reflected in the availability of the other specified bipolar and related disorder category. Indeed, specific criteria for a disorder involving short—duration hypomania are provided in Section III in the hope of encouraging further study of this disorder. For a diagnosis of bipolar l disorder, it is necessary to meet the following criteria for a manic episode. The manic episode may have been preceded by and may be followed by hypo- manic or major depressive episodes. A. A distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased goaI-directed activity or energy, lasting at least 1 week and present most of the day, nearly every day (or any duration if hospi- talization is necessary). B. During the period of mood disturbance and increased energy or activity, three (or more) of the following symptoms (four if the mood is only irritable) are present to a sig- nificant degree and represent a noticeable change from usual behavior: Inflated seIf-esteem or grandiosity.Decreased need for sleep (e.g., feels rested after only 3 hours of sleep). More talkative than usual or pressure to keep talking.Flight of ideas or subjective experience that thoughts are racing. Distractibility (i.e., attention too easily drawn to unimportant or irrelevant external stimuli), as reported or observed. Increase in goal-directed activity (either socially, at work or school, or sexually) or psychomotor agitation (i.e., purposeless non-goaI-directed activity). 7. Excessive involvement in activities that have a high potential for painful conse- quences (e.g., engaging in unrestrained buying sprees, sexual indiscretions, or foolish business investments). ?‘PP’NT‘ .0)C. The mood disturbance is sufficiently severe to cause marked impairment in social or occupational functioning or to necessitate hospitalization to prevent harm to self or oth- ers. or there are psychotic features. D. The episode is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication, other treatment) or to another medical condition. Note: A full manic episode that emerges during antidepressant treatment (e.g., medi- cation, electroconvulsive therapy) but persists at a fully syndromal level beyond the physiological effect of that treatment is sufficient evidence for a manic episode and, therefore, a bipolar | diagnosis. Note: Criteria A—D constitute a manic episode. At least one lifetime manic episode is re- quired for the diagnosis of bipolar l disorder. A. A distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy, lasting at least 4 consec- utive days and present most of the day, nearly every day. B. During the period of mood disturbance and increased energy and activity, three (or more) of the following symptoms (four if the mood is only irritable) have persisted. rep- resent a noticeable change from usual behavior, and have been present to a significant degree: 1. Inflated seli-esteem or grandiosity. Decreased need for sleep (e.g., feels rested after only 3 hours of sleep). More talkative than usual or pressure to keep talking.Flight of ideas or subjective experience that thoughts are racing. Distractibility (i.e., attention too easily drawn to unimportant or irrelevant external stimuli), as reported or observed. 6. increase in goal-directed activity (either socially, at work or school, or sexually) or psychomotor agitation. 7. Excessive involvement in activities that have a high potential for painful conse- quences (e.g., engaging in unrestrained buying sprees, sexual indiscretions, or foolish business investments). . The episode is associated with an unequivocal change in functioning that is uncharac- teristic of the individual when not symptomatic. . The disturbance in mood and the change in functioning are observable by others. . The episode is not severe enough to cause marked impairment in social or occupa- tional functioning or to necessitate hospitalization. If there are psychotic features, the episode is, by definition, manic. The episode is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication, other treatment). Note: A full hypomanic episode that emerges during antidepressant treatment (e.g., medication, electroconvulsive therapy) but persists at a fully syndromal level beyond the physiological effect of that treatment is sufficient evidence for a hypomanic episode diagnosis. However, caution is indicated so that one or two symptoms (particularly in- creased irritability, edginess, or agitation following antidepressant use) are not taken as sufficient for diagnosis of a hypomanic episode, nor necessarily indicative of a bi- polar diathesis. Note: Criteria A-F constitute a hypomanic episode. Hypomanic episodes are common in bipolar I disorder but are not required for the diagnosis of bipolar | disorder. Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure. Note: Do not include symptoms that are clearly attributable to another medical condi- tion. 1. Depressed mood most of the day, nearly every day, as indicated by either subjec- tive report (e.g., feels sad, empty, or hopeless) or observation made by others (e.g., appears tearful). (Note: In children and adolescents, can be irritable mood.) 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated by either subjective account or observation). 3. Significant weight loss when not dieting or weightgain (e.g., a change of more than 5% of body weight in a month), or decrease or increase in appetite nearly every day. (Note: In children, consider failure to make expected weight gain.) 4. Insomnia or hypersomnia nearly every day. 5. Psychomotor agitation or retardation nearly every day (observable by others; not merely subjective feelings of restlessness or being slowed down). 6. Fatigue or loss of energy nearly every day.7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delu- sional) nearly every day (not merely seIf-reproach or guilt about being sick). 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (ei- ther by subjective account or as observed by others). 9. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation with- out a specific plan, or a suicide attempt or a specific plan for committing suicide. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. The episode is not attributable to the physiological effects of a substance or another medical condition. Note: Criteria A-C constitute a major depressive episode. Major depressive episodes are common in bipolar I disorder but are not required for the diagnosis of bipolar I disorder. Note: Responses to a significant loss (e.g., bereavement, financial ruin, losses from a natural disaster, a serious medical illness or disability) may include the feelings of intense sadness, rumination about the loss, insomnia, poor appetite, and weight loss noted in Cri- terion A, which may resemble a depressive episode. Although such symptoms may be un- derstandable or considered appropriate to the loss, the presence of a major depressive episode in addition to the normal response to a significant loss should also be carefully considered. This decision inevitably requires the exercise of clinical judgment based on the indiyidual’s history and the cultural norms for the expression of distress in the context of loss. A. Criteria have been met for at least one manic episode (Criteria A—D under "Manic Ep- isode" above). B. The occurrence of the manic and major depressive episode(s) is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional dis- order, or other specified or unspecified schizophrenia spectrum and other psychotic disorder. The diagnostic code for bipolar | disorder is based on type of current or most recent epi- sode and its status with respect to current severity, presence of psychotic features, and remission status. Current severity and psychotic features are only indicated if full criteria are currently met for a manic or major depressive episode. Remission specifiers are only indicated if the full criteria are not currently met for a manic, hypomanic, or major depres- sive episode. Codes are as follows: Mild (p. 154) 296.41 NA 296.51 NA (F31.11) (F3131)Moderate (p. 154) 296.42 NA 296.52 NA (F31.12) (F3132)Severe (p. 154) 296.43 NA 296.53 NA (F31.13) (F31.4) 1In distinguishing grief from a major depressive episode (MDE), it is useful to consider that in grief the predominant affect is feelings of emptiness and loss, while in MDE it is persistent depressed mood and the inability to anticipate happiness or pleasure. The dysphoria in grief is likely to decrease in intensity over days to weeks and occurs in waves, the so-called pangs of grief. These waves tend to be associated with thoughts or reminders of the deceased. The depressed mood of a MDE is more persistent and not tied to specific thoughts or preoccupations. The pain of grief may be accompanied by positive emotions and humor that are uncharacteristic of the pervasive unhappiness and misery characteristic of a major depressive episode. The thought content associated with grief generally features a preoccupation with thoughts and memories of the deceased, rather than the self—critical or pessimistic ruminations seen in a MDE. In grief, self—esteem is generally preserved, whereas in a MDE, feelings of worthlessness and self— loathing are common. If self-derogatory ideation is present in grief, it typically involves per- ceived failings vis-a—vis the deceased (e.g., not visiting frequently enough, not telling the deceased how much he or she was loved). If a bereaved individual thinks about death and dying, such thoughts are generally focused on the deceased and possibly about ”joining" the deceased, whereas in a major depressive episode such thoughts are focused on ending one’s own life because of feeling worthless, undeserving of life, or unable to cope with the pain of depression. With psychotic 296.44 NA 296.54 NA features‘“ (F312) (F31.5) (p. 152) In partial 296.45 296.45 296.55 NA remission (p. 154) (F31.73) (F31.73) (F3175) In full remission 296.46 296.46 296.56 NA (p. 154) (F31.74) (F31.74) (F31.76) Unspecified 296.40 296.40 296.50 NA (F31 9.) (F319) (F31. 9) :Severity and psychotic specifiers do not apply; code 296. 40 (F31. 0) for cases not in remission. Severity, psychotic, and remission specifiers do not apply. Code 296. 7 (F31. 9). “*If psychotic features are present, code the’ ’with psychotic features" specifier irrespective of epi- sode severity. In recording the name of a diagnosis, terms should be listed in the following order: bipolar I disorder, type of current or most recent episode, severity/psychotic/remission specifiers, followed by as many specifiers without codes as apply to the current or most recent epi- sode. Wlth anxious distress (p. 149)With mixed features (pp. 149—150)With rapid cycling (pp. 150—151)With meianchoiic features (p. 151)With atypical features (pp. 151—152)With mood—congruent psychotic features (p. 152)With mood-incongruent psychotic features (p. 152)With catatonia (p. 152). Coding note: Use additional code 293.89 (F06.1). With peripartum onset (pp. 152—153)Wlth seasonal pattern (pp. 153—154)The essential feature of a manic episode is a distinct period during which there is an ab- normally, persistently elevated, expansive, or irritable mood and persistently increased activity or energy that is present for most of the day, nearly every day, for a period of at least 1 week (or any duration if hospitalization is necessary), accompanied by at least three additional symptoms from Criterion B. If the mood is irritable rather than elevated or ex- pansive, at least four Criterion B symptoms must be present. Mood in a manic episode is often described as euphoric, excessively cheerful, high, or ”feeling on top of the world.” In some cases, the mood is of such a highly infectious quality that it is easily recognized as excessive and may be characterized by unlimited and hap- hazard enthusiasm for interpersonal, sexual, or occupational interactions. For example, the individual may spontaneously start extensive conversations with strangers in public. Often the predominant mood is irritable rather than elevated, particularly when the indi- vidual’s wishes are denied or if the individual has been using substances. Rapid shifts in mood over brief periods of time may occur and are referred to as lability (i.e., the alterna- tion among euphoria, dysphoria, and irritability). In children, happiness, silliness and "goofiness" are normal in the context of special occasions; however, if these symptoms are recurrent, inappropriate to the context, and beyond what is expected for the developmen- tal level of the child, they may meet Criterion A. If the happiness is unusual for a child (i.e., distinct from baseline), and the mood change occurs at the same time as symptoms that meet Criterion B for mania, diagnostic certainty is increased; however, the mood change must be accompanied by persistently increased activity or energy levels that are obvious to those who know the child well. During the manic episode, the individual may engage in multiple overlapping new projects. The projects are often initiated with little knowledge of the topic, and nothing seems out of the individual’s reach. The increased activity levels may manifest at unusual hours of the day. Inflated self-esteem is typically present, ranging from uncritical self-confidence to marked grandiosity, and may reach delusional proportions (Criterion B1). Despite lack of any partic~ ular experience or talent, the individual may embark on complex tasks such as writing a novel or seeking publicity for some impractical invention. Grandiose delusions (e.g., of having a special relationship to a famous person) are common. In children, overestimation of abilities and belief that, for example, they are the best at a sport or the smartest in the class is normal; however, when such beliefs are present despite clear evidence to the contrary or the child at- tempts feats that are clearly dangerous and, most important, represent a change from the child’s normal behavior, the grandiosity criterion should be considered satisfied. One of the most common features is a decreased need for sleep (Criterion B2) and is distinct from insomnia in which the individual wants to sleep or feels the need to sleep but is unable. The individual may sleep little, if at all, or may awaken several hours earlier than usual, feeling rested and full of energy. When the sleep disturbance is severe, the individ- ual may go for days without sleep, yet not feel tired. Often a decreased need for sleep her- alds the onset of a manic episode. Speech can be rapid, pressured, loud, and difficult to interrupt (Criterion 83). Individ- uals may talk continuously and without regard for others’ wishes to communicate, often in an intrusive manner or without concern for the relevance of what is said. Speech is sometimes characterized by jokes, puns, amusing irrelevancies, and theatricality, with dramatic mannerisms, singing, and excessive gesturing. Loudness and forcefulness of speech often become more important than what is conveyed. If the individual’s mood is more irritable than expansive, speech may be marked by complaints, hostile comments, or angry tirades, particularly if attempts are made to interrupt the individual. Both Criterion A and Criterion B symptoms may be accompanied by symptoms of the opposite (i.e., de- pressive) pole (see ”with mixed features" specifier, pp. 149—150). Often the individual’s thoughts race at a rate faster than they can be expressed through speech (Criterion B4). Frequently there is flight of ideas evidenced by a nearly continuous flow of accelerated speech, with abrupt shifts from one topic to another. When flight of ideas is se- vere, speech may become disorganized, incoherent, and particularly distressful t0 the individ- ual. Sometimes thoughts are experienced as so crowded that it is very difficult to speak. Distractibility (Criterion BS) is evidenced by an inability to censor immaterial external stimuli (e.g., the interviewer’s attire, background noises or conversations, furnishings in the room) and often prevents individuals experiencing mania from holding a rational con— versation or attending to instructions. The increase in goal-directed activity often consists of excessive planning and partici- pation in multiple activities, including sexual, occupational, political, or religious activi- ties. Increased sexual drive, fantasies, and behavior are often present. Individuals in a manic episode usually show increased sociability (e.g., renewing old acquaintances or calling or contacting friends or even strangers), without regard to the intrusive, domineering, and demanding nature of these interactions. They often display psychomotor agitation or rest- lessness (i.e., purposeless activity) by pacing or by holding multiple conversations simulta- neously. Some individuals write excessive letters, e-mails, text messages, and so forth, on many different topics to friends, public figures, or the media. The increased activity criterion can be difficult to ascertain in children; however, when the child takes on many tasks simultaneously, starts devising elaborate and unrealistic plans for projects, develops previously absent and developmentally inappropriate sexual preoccupations (not accounted for by sexual abuse or exposure to sexually explicit mate— rial), then Criterion B might be met based on clinical judgment. It is essential to determine whether the behavior represents a change from the child’s baseline behavior; occurs most of the day, nearly every day for the requisite time period; and occurs in temporal associa- tion with other symptoms of mania. The expansive mood, excessive optimism, grandiosity, and poor judgment often lead to reckless involvement in activities such as spending sprees, giving away possessions, reckless driving, foolish business investments, and sexual promiscuity that is unusual for the individual, even though these activities are likely to have catastrophic consequences (Criterion B7). The individual may purchase many unneeded items without the money to pay for them and, in some cases, give them away. Sexual behavior may include infidelity or indiscriminate sexual encounters with strangers, often disregarding the risk of sexually transmitted diseases or interpersonal consequences. The manic episode must result in marked impairment in social or occupational func- tioning or require hospitalization to prevent harm to self or others (e.g., financial losses, i1- legal activities, loss of employment, self—injurious behavior). By definition, the presence of psychotic features during a manic episode also satisfies Criterion C. Manic symptoms or syndromes that are attributable to the physiological effects of a drug of abuse (e.g., in the context of cocaine or amphetamine intoxication), the side effects of medications or treatments (e.g., steroids, L-dopa, antidepressants, stimulants), or an- other medical condition do not count toward the diagnosis of bipolar I disorder. However, a fully syndromal manic episode that arises during treatment (e.g., with medications, elec- troconvulsive therapy, light therapy) or drug use and persists beyond the physiological ef- fect of the inducing agent (i.e., after a medication is fully out of the individual’s system or the effects of electroconvulsive therapy would be expected to have dissipated completely) is sufficient evidence for a manic episode diagnosis (Criterion D). Caution is indicated so that one or two symptoms (particularly increased irritability, edginess, or agitation follow- ing antidepressant use) are not taken as sufficient for diagnosis of a manic or hypomanic episode, nor necessarily an indication of a bipolar disorder diathesis. It is necessary to meet criteria for a manic episode to make a diagnosis of bipolar I disorder, but it is not re- quired to have hypomanic or major depressive episodes. However, they may precede or follow a manic episode. Full descriptions of the diagnostic features of a hypomanic epi- sode may be found within the text for bipolar II disorder, and the features of a major de- pressive episode are described within the text for major depressive disorder. During a manic episode, individuals often do not perceive that they are ill or in need of treat- ment and vehemently resist efforts to be treated. Individuals may change their dress, makeup, or personal appearance to a more sexually suggestive or flamboyant style. Some perceive a sharper sense of smell, hearing, or vision. Gambling and antisocial behaviors may accompany the manic episode. Some individuals may become hostile and physically threatening to others and, when delusional, may become physically assaultive or suicidal. Catastrophic conse- quences of a manic episode (e.g., involuntary hospitalization, difficulties with the law, serious financial difficulties) often result from poor judgment, loss of insight, and hyperactivity. Mood may shift very rapidly to anger or depression. Depressive symptoms may occur' during a manic episode and, if present, may last moments, hours, or, more rarely, days (see "with mixed features” specifier, pp. 149—150). The 12-month prevalence estimate in the continental United States was 0.6% for bipolar I disorder as defined in DSM-IV. Twelve-month prevalence of bipolar I disorder across 11 countries ranged from 0.0% to 0.6%. The lifetime male-to-female prevalence ratio is ap- proximately 1.1:1. Mean age at onset of the first manic, hypomanic, or major depressive episode is approxi- mately 18 years for bipolar I disorder. Special considerations are necessary'to detect the di- agnosis in children. Since children of the same chronological age may be at different developmental stages, it is difficult to define with precision what is “normal” or ”ex- pected” at any given point. Therefore, each child should be judged according to his or her own baseline. Onset occurs throughout the life cycle, including first onsets in the 60s or 705. Onset of manic symptoms (e.g., sexual or social disinhibition) in late mid-life or late- life should prompt consideration of medical conditions (e.g., frontotemporal neurocogni- tive disorder) and of substance ingestion or withdrawal. More than 90% of individuals who have a single manic episode go on to have recurrent mood episodes. Approximately 60% of manic episodes occur immediately before a major depressive episode. Individuals with bipolar I disorder who have multiple (four or more) mood episodes (major depressive, manic, or hypomanic) within 1 year receive the speci- fier “with rapid cycling.” Environmental. Bipolar disorder is more common in high-income than in low-income countries (1.4 vs. 0.7%). Separated, divorced, or widowed individuals have higher rates of bipolar I disorder than do individuals who are married or have never been married, but the direction of the association is unclear. Genetic and physiological. A family history of bipolar disorder is one of the strongest and most consistent risk factors for bipolar disorders. There is an average lO-fold increased risk among adult relatives of individuals with bipolar I and bipolar II disorders. Magnitude of risk increases with degree of kinship. Schizophrenia and bipolar disorder likely share a ge- netic origin, reflected in familial co-aggregation of schizophrenia and bipolar disorder. Course modifiers. After an individual has a manic episode with psychotic features, subse- quent manic episodes are more likely to include psychotic features. Incomplete inter- episode recovery is more common when the current episode is accompanied by mood— incongruent psychotic features. Little information exists on specific cultural differences in the expression of bipolar I dis- order. One possible explanation for this may be that diagnostic instruments are often translated and applied in different cultures with no transcultural validation. In one US. study, 12-month prevalence of bipolar I disorder was significantly lower for Afro-Carib- beans than for African Americans or whites. Females are more likely to experience rapid cycling and mixed states, and to have patterns of comorbidity that differ from those of males, including higher rates of lifetime eating disor- ders. Females with bipolar I or II disorder are more likely to experience depressive symptoms than males. They also have a higher lifetime risk of alcohol use disorder than are males and a much greater likelihood of alcohol use disorder than do females in the general population. The lifetime risk of suicide in individuals with bipolar disorder is estimated to be at least 15 times that of the general population. In fact, bipolar disorder may account for one-quar- ter of all completed suicides. A past history of suicide attempt and percent days spent de- pressed in the past year are associated with greater risk of suicide attempts or completions. Functional Consequences of Bipoiar I DisorderAlthough many individuals with bipolar disorder return to a fully functional level be- tween episodes, approximately 30% show severe impairment in work role function. Func- tional recovery lags substantially behind recovery from symptoms, especially with respect to occupational recovery, resulting in lower socioeconomic status despite equivalent lev- els of education when compared with the general population. Individuals with bipolar I disorder perform more poorly than healthy individuals on cognitive tests. Cognitive im- pairments may contribute to vocational and interpersonal difficulties and persist through the lifespan, even during euthymic periods. Major depressive disorder. Major depressive disorder may also be accompanied by hy- pomanic or manic symptoms (i.e., fewer symptoms or for a shorter duration than required for mania or hypomania). When the individual presents in an episode of major depression, one must depend on corroborating history regarding past episodes of mania or hypoma- nia. Symptoms of irritability may be associated with either major depressive disorder or bipolar disorder, adding to diagnostic complexity. Other bipolar disorders. Diagnosis of bipolar I disorder is differentiated from bipolar II disorder by determining whether there have been any past episodes of mania. Other spec- and II disorders by considering whether either the episodes involving manic or hypo- manic symptoms or the episodes of depressive symptoms fail to meet the full criteria for those conditions. Bipolar disorder due to another medical condition may be distinguished from bipolar I and II disorders by identifying, based on best clinical evidence, a causally related medical condition. Generalized anxiety disorder, panic disorder, posttraumatic stress disorder, or other anxiety disorders. These disorders need to be considered in the differential diagnosis as either the primary disorder or, in some cases, a comorbid disorder. A careful history of symptoms is needed to differentiate generalized anxiety disorder from bipolar disorder, as anxious ruminations may be mistaken for racing thoughts, and efforts to minimize anx- ious feelings may be taken as impulsive behavior. Similarly, symptoms of posttraumatic stress disorder need to be differentiated from bipolar disorder. It is helpful to assess the ep- isodic nature of the symptoms described, as well as to consider symptom triggers, in mak- ing this differential diagnosis. Substance/medication-induced bipolar disorder. Substance use disorders may mani- fest with substance.medication-induced manic symptoms that must be distinguished from bipolar I disorder; response to mood stabilizers during a substance/medication- induced mania may not necessarily be diagnostic for bipolar disorder. There may be sub- stantial overlap in view of the tendency for individuals with bipolar I disorder to overuse substances during an episode. A primary diagnosis of bipolar disorder must be estab- lished based on symptoms that remain once substances are no longer being used. Attention-deficitlhyperactivity disorder. This disorder may be misdiagnosed as bipolar disorder, especially in adolescents and children. Many symptoms overlap with the symp- toms of mania, such as rapid speech, racing thoughts, distractibility, and less need for sleep. The "double counting" of symptoms toward both ADHD and bipolar disorder can be avoided if the clinician clarifies whether the symptom(s) represents a distinct episode. Personality disorders. Personality disorders such as borderline personality disorder may have substantial symptomatic overlap with bipolar disorders, since mood lability and impulsivity are common in both conditions. Symptoms must represent a distinct ep- isode, and the noticeable increase over baseline required for the diagnosis of bipolar dis- order must be present. A diagnosis of a personality disorder should not be made during an untreated mood episode. Disorders with prominent irritability. In individuals with severe irritability, particularly children and adolescents, care must be taken to apply the diagnosis of bipolar disorder only to those who have had a clear episode of mania or hypomania—that is, a distinct time period, of the required duration, during which the irritability was clearly different from the individual’s baseline and was accompanied by the onset of Criterion B symptoms. When a child’s irritability is persistent and particularly severe, the diagnosis of disruptive mood dysregulation disorder would be more appropriate. Indeed, when any child is being assessed for mania, it is essential that the symptoms represent a clear change from the child’s typical behavior. Co-occurring mental disorders are common, with the most frequent disorders being any anxiety disorder (e.g., panic attacks, social anxiety disorder [social phobia], specific plio- bia), occurring in approximately three-fourths of individuals; ADHD, any disruptive, im- pulse-control, or conduct disorder (e.g., intermittent explosive disorder, oppositional defiant disorder, conduct disorder), and any substance use disorder (e.g., alcohol use dis- order) occur in over half of individuals with bipolar I disorder. Adults with bipolar I dis- order have high rates of serious and / or untreated co-occurring medical conditions. Metabolic syndrome and migraine are more common among individuals with bipolar dis- order than in the general population. More than half of individuals whose symptoms meet criteria for bipolar disorder have an alcohol use disorder, and those with both disorders are at greater risk for suicide attempt. Diagnostic Criteria 296.89 (F31.81)For a diagnosis of bipolar II disorder, it is necessary to meet the following criteria for a cur- rent or past hypomanic episode and the following criteria for a current or past major de- pressive episode: A. A distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy, lasting at least 4 consec- utive days and present most of the day, nearly every day. B. During the period of mood disturbance and increased energy and activity, three (or more) of the following symptoms have persisted (four if the mood is only irritable), represent a no- ticeable change from usual behavior, and have been present to a significant degree: 1. Inflated seIf-esteem or grandiosity. 2. Decreased need for sleep (e.g., feels rested after only 3 hours of sleep). 3. More talkative than usual or pressure to keep talking. 4. Flight of ideas or subjective experience that thoughts are racing. 5. Distractibility (i.e., attention too easily drawn to unimportant or irrelevant external stimuli), as reported or observed. 6. Increase in goaI-directed activity (either socially, at work or school, or sexually) or psychomotor agitation. 7. Excessive involvement in activities that have a high potential for painful conse- quences (e.g., engaging in unrestrained buying sprees, sexual indiscretions, or foolish business investments). C. The episode is associated with an unequivocal change in functioning that is uncharac- teristic of the individual when not symptomatic. D. The disturbance in mood and the change in functioning are observable by others. E. The episode is not severe enough to cause marked Impairment in social or occupa- tional functioning or to necessitate hospitalization. If there are psychotic features, the episode is, by definition, manic. F. The episode is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication or other treatment). Note: A full hypomanic episode that emerges during antidepressant treatment (e.g., medication. electroconvulsive therapy) but persists at a fully syndromal level beyond the physiological effect of that treatment is sufficient evidence for a hypomanic episode diagnosis. However, caution is indicated so that one or two symptoms (particularly in- creased irritability, edginess, or agitation following antidepressant use) are not taken as sufficient for diagnosis of a hypomanic episode, nor necessarily indicative of a bi- polar diathesis. A. Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure. Note: Do not include symptoms that are clearly attributable to a medical condition. 1. Depressed mood most of the day, nearly every day, as indicated by either subjec- tive report (e.g., feels sad, empty, or hopeless) or observation made by others (e.g., appears tearful). (Note: In children and adolescents, can be irritable mood.) 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated by either subjective account or observation). 3. Significant weight loss when not dieting or weight gain (e.g., a change of more than 5% of body weight in a month), or decrease or increase in appetite nearly every day. (Note: In children, consider failure to make expected weight gain.) 4. Insomnia or hypersomnia nearly every day. 5. Psychomotor agitation or retardation nearly every day (observable by others; not merely subjective feelings of restlessness or being slowed down). 6. Fatigue or loss of energy nearly every day.7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delu- sional) nearly every day (not merely self-reproach or guilt about being sick). 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (ei- ther by subjective account or as observed by others). 9. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation with- out a specific plan, a suicide attempt, or a specific plan for committing suicide. B. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. C. The episode is not attributable to the physiological effects of a substance or another medical condition. Note: Criteria A—C above constitute a major depressive episode.Note: Responses to a significant loss (e.g., bereavement, financial ruin, losses from a nat- ural disaster, a serious medical illness or disability) may include the feelings of intense sad- ness, rumination about the loss, insomnia, poor appetite, and weight loss noted in Criterion A, which may resemble a depressive episode. Although such symptoms may be under- standable or considered appropriate to the loss, the presence of a major depressive episode in addition to the normal response to a significant loss should be carefully considered. This decision inevitably requires the exercise of clinical judgment based on the individual’s history and the cultural norms for the expression of distress in the context of loss.1 A. Criteria have been met for at least one hypomanic episode (Criteria A—F under “Hypo— “Major Depressive Episode" above). B. There has never been a manic episode.C. The occurrence of the hypomanic episode(s) and major depressive episode(s) is not better explained by schizoaftective disorder, schizophrenia, schizophreniform disor- der, delusional disorder, or other specified or unspecified schizophrenia spectrum and other psychotic disorder. D. The symptoms of depression or the unpredictability caused by frequent alternation be- tween periods of depression and hypomania causes clinically significant distress or im- pairment in social, occupational, or other important areas of functioning. Bipolar |I disorder has one diagnostic code: 296.89 (F31.81). Its status with respect to cur- rent severity, presence of psychotic features, course, and other specifiers cannot be coded but should be indicated in writing (e.g., 296.89 [F3181] bipolar II disorder, current episode depressed, moderate severity, with mixed features; 296.89 [F3181] bipolar II dis- order, most recent episode depressed, in partial remission). Specify current or most recent episode:Specify if:With anxious distress (p. 149)With mixed features (pp. 149—150) 1 In distinguishing grief from a major depressive episode (MDE), it is useful to consider that in grief the predominant affect is feelings of emptiness and loss, while in a MDE it is persistent depressed mood and the inability to anticipate happiness or pleasure. The dysphoria in grief is likely to decrease in intensity over days to weeks and occurs in waves, the so—called pangs of grief. These waves tend to be associated with thoughts or reminders of the deceased. The depressed mood of a MDE is more persistent and not tied to specific thoughts or preoccupations. The pain of grief may be accompanied by positive emotions and humor that are uncharacteristic of the pervasive unhap- piness and misery characteristic of a MDE. The thought content associated with grief generally fea- tures a preoccupation with thoughts and memories of the deceased, rather than the self—critical or pessimistic ruminations seen in a MDE. In grief, seIf-esteem is generally preserved, whereas in a MDE feelings of worthlessness and self—loathing are common. If self—derogatory ideation is present in grief, it typically involves perceived failings vis-a-vis the deceased (e.g., not visiting frequently enough, not telling the deceased how much he or she was loved). If a bereaved individual thinks about death and dying, such thoughts are generally focused on the deceased and possibly about “joining” the deceased, whereas in a MDE such thoughts are focused on ending one’s own life because of feeling worthless, undeserving of life, or unable to cope with the pain of depression. With rapid cycling (pp. 150—151)With mood-congruent psychotic features (p. 152)With mood-incongruent psychotic features (p. 152)With catatonia (p. 152). Coding note: Use additional code 293.89 (F06.1). With peripartum onset (pp. 152—153)With seasonal pattern (pp. 153-154): Applies only to the pattern of major depressive episodes. Specify course it full criteria for a mood episode are not currently met: In partial remission (p. 154)In full remission (p. 154)Specify severity if full criteria for a mood episode are currently met: Mild (p. 154)Moderate (p. 154)Severe (p. 154)Bipolar II disorder is characterized by a clinical course of recurring mood episodes con- sisting of one or more major depressive episodes (Criteria A—C under “Major Depressive sode”). The major depressive episode must last at least 2 weeks, and the hypomanic epi- sode must last at least 4 days, to meet the diagnostic criteria. During the mood episode(s), the requisite number of symptoms must be present most of the day, nearly every day, and represent a noticeable change from usual behavior and functioning. The presence of a manic episode during the course of illness precludes the diagnosis of bipolar II disorder (Criterion B under ”Bipolar II Disorder"). Episodes of substance/medication-induced de- senting the physiological effects of a medication, other somatic treatments for depression, drugs of abuse, or toxin exposure) or of depressive and related disorder due to another medical condition or bipolar and related disorder due to another medical condition do not count toward a diagnosis of bipolar II disorder unless they persist beyond the physiolog- ical effects of the treatment or substance and then meet duration criteria for an episode. In addition, the episodes must not be better accounted for by schizoaffective disorder and are not superimposed on schizophrenia, schizophreniform disorder, delusional disorder, or terion C under ”Bipolar II Disorder”). The depressive episodes or hypomanic fluctuations must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion D under ”Bipolar II Disorder”); however, for hy- pomanic episodes, this requirement does not have to be met. A hypomanic episode that causes significant impairment would likely qualify for the diagnosis of manic episode and, therefore, for a lifetime diagnosis of bipolar I disorder. The recurrent major depressive ep- isodes are often more frequent and lengthier than those occurring in bipolar I disorder. Individuals with bipolar II disorder typically present to a clinician during a major de- pressive episode and are unlikely to complain initially of hypomania. Typically, the hy- pomanic episodes themselves do not cause impairment. Instead, the impairment results from the major depressive episodes or from a persistent pattern of unpredictable mood changes and fluctuating, unreliable interpersonal or occupational functioning. Individu- als with bipolar II disorder may not view the hypomanic episodes as pathological or dis- advantageous, although others may be troubled by the individual’s erratic behavior. Clinical information from other informants, such as close friends or relatives, is often use- ful in establishing the diagnosis of bipolar II disorder. A hypomanic episode should not be confused with the several days of euthyrnia and re- stored energy or activity that may follow remission of a major depressive episode. Despite the substantial differences in duration and severity between a manic and hypomanic episode, bi- polar II disorder is not a ”milder form" of bipolar I disorder. Compared with individuals with bipolar I disorder, individuals with bipolar II disorder have greater chronicity of illness and spend, on average, more time in the depressive phase of their illness, which can be severe and / or disabling. Depressive symptoms co-occurring with a hypomanic episode or hypomanic symptoms co-occurring with a depressive episode are common in individuals with bipolar H disorder and are overrepresented in females, particularly hypomania with mixed features. In- dividuals experiencing hypomania with mixed features may not label their symptoms as hy- pomania, but instead experience them as depression with increased energy or irritability. A common feature of bipolar II disorder is impulsivity, which can contribute to suicide at- tempts and substance use disorders. Impulsivity may also stem from a concurrent person- ality disorder, substance use disorder, anxiety disorder, another mental disorder, or a medical condition. There may be heightened levels of creativity in some individuals with a bipolar disorder. However, that relationship may be nonlinear; that is, greater lifetime creative accomplishments have been associated with milder forms of bipolar disorder, and higher creativity has been found in unaffected family members. The individual’s attach- ment to heightened creativity during hypomanic episodes may contribute to ambivalence about seeking treatment or undermine adherence to treatment. The 12-month prevalence of bipolar II disorder, internationally, is 0.3%. In the United States, 12-month prevalence is 0.8%. The prevalence rate of pediatric bipolar II disorder is difficult to establish. DSM-IV bipolar I, bipolar II, and bipolar disorder not otherwise spec- ified yield a combined prevalence rate of 1.8% in US. and non-U.S. community samples, with higher rates (2.7% inclusive) in youths age 12 years or older. Although bipolar II disorder can begin in late adolescence and throughout adulthood, av- erage age at onset is the mid-205, which is slightly later than for bipolar I disorder but ear- lier than for major depressive disorder. The illness most often begins with a depressive episode and is not recognized as bipolar II disorder until a hypomanic episode occurs; this happens in about 12% of individuals with the initial diagnosis of major depressive disor- der. Anxiety, substance use, or eating disorders may also precede the diagnosis, compli- cating its detection. Many individuals experience several episodes of major depression prior to the first recognized hypomanic episode. The number of lifetime episodes (both hypomanic and major depressive episodes) tends to be higher for bipolar II disorder than for major depressive disorder or bipolar I disorder. However, individuals with bipolar I disorder are actually more likely to experi- ence hypomanic symptoms than are individuals with bipolar II disorder.The interval between mood episodes in the course of bipolar II disorder tends to decrease as the indi- vidual ages. While the hypomanic episode is the feature that defines bipolar II disorder, depressive episodes are more enduring and disabling over time. Despite the predomi- nance of depression, once a hypomanic episode has occurred, the diagnosis becomes bi- polar II disorder and never reverts to major depressive disorder. Approximately 5%—15% of individuals with bipolar II disorder have multiple (four or more) mood episodes (hypomanic or major depressive) within the previous 12 months. If this pattern is present, it is noted by the specifier ”with rapid cycling.” By definition, psy- chotic symptoms do not occur in hypomanic episodes, and they appear to be less frequent in the major depressive episodes in bipolar II disorder than in those of bipolar I disorder. Switching from a depressive episode to a manic or hypomanic episode (with or with- out mixed features) may occur, both spontaneously and during treatment for depression. About 5%—15% of individuals with bipolar II disorder will ultimately develop a manic ep- isode, which changes the diagnosis to bipolar I disorder, regardless of subsequent course. Making the diagnosis in children is often a challenge, especially in those with irritabil— ity and hyperarousal that is nonepisodic (i.e., lacks the well-demarcated periods of altered mood). Nonepisodic irritability in youth is associated with an elevated risk for anxiety dis- orders and major depressive disorder, but not bipolar disorder, in adulthood. Persistently irritable youths have lower familial rates of bipolar disorder than do youths who have bi- polar disorder. For a hypomanic episode to be diagnosed, the child’s symptoms must ex- ceed what is expected in a given environment and culture for the child’s developmental stage. Compared with adult onset of bipolar II disorder, childhood or adolescent onset of the disorder may be associated with a more severe lifetime course. The 3-year incidence rate of first-onset bipolar II disorder in adults older than 60 years is 0.34%. However, dis— tinguishing individuals older than 60 years with bipolar II disorder by late versus early age at onset does not appear to have any clinical utility. Genetic and physiological. The risk of bipolar II disorder tends to be highest among rel- atives of individuals with bipolar II disorder, as opposed to individuals with bipolar I dis- order or major depressive disorder. There may be genetic factors influencing the age at onset for bipolar disorders. Course modifiers. A rapid-cycling pattern is associated with a poorer prognosis. Return to previous level of social function for individuals with bipolar II disorder is more likely for individuals of younger age and with less severe depression, suggesting adverse effects of prolonged illness on recovery. More education, fewer years of illness, and being mar- ried are independently associated with functional recovery in individuals with bipolar disorder, even after diagnostic type (I vs. II), current depressive symptoms, and presence of psychiatric comorbidity are taken into account. Whereas the gender ratio for bipolar I disorder is equal, findings on gender differences in bipolar II disorder are mixed, differing by type of sample (i.e., registry, community, or clinical) and country of origin. There is little to no evidence of bipolar gender differences, whereas some, but not all, clinical samples suggest that bipolar II disorder is more com- mon in females than in males, which may reflect gender differences in treatment seeking or other factors. Patterns of illness and comorbidity, however, seem to differ by gender, with females being more likely than males to report hypomania with mixed depressive features and a rapid-cycling course. Childbirth may be a specific trigger for a hypomanic episode, which can occur in 10%—20% of females in nonclinical populations and most typically in the early postpartum period. Distinguishing hypomania from the elated mood and reduced sleep that normally accompany the birth of a child may be challenging. Postpartum hypomania may foreshadow the onset of a depression that occurs in about half of females who expe- rience postpartum ”highs.” Accurate detection of bipolar II disorder may help in estab- lishing appropriate treatment of the depression, which may reduce the risk of suicide and infanticide. Suicide risk is high in bipolar II disorder. Approximately one-third of individuals with bi- polar II disorder report a lifetime history of suicide attempt. The prevalence rates of life- time attempted suicide in bipolar II and bipolar I disorder appear to be similar (32.4% and 36.3%, respectively). However, the lethality of attempts, as defined by a lower ratio of at- tempts to completed suicides, may be higher in individuals with bipolar II disorder com- pared with individuals with bipolar I disorder. There may be an association between genetic markers and increased risk for suicidal behavior in individuals with bipolar dis- order, including a 65-fold higher risk of suicide among first-degree relatives of bipolar II probands compared with those with bipolar I disorder. Functional Consequences of Bipolar II DisorderAlthough many individuals with bipolar II disorder return to a fully functional level be- tween mood episodes, at least 15% continue to have some inter-episode dysfunction, and 20% transition directly into another mood episode without inter-episode recovery. Func- tional recovery lags substantially behind recovery from symptoms of bipolar II disorder, especially in regard to occupational recovery, resulting in lower socioeconomic status de- spite equivalent levels of education with the general population. Individuals with bipolar II disorder perform more poorly than healthy individuals on cognitive tests and, with the exception of memory and semantic fluency, have similar cognitive impairment as do in- dividuals with bipolar I disorder. Cognitive impairments associated with bipolar II disor- der may contribute to vocational difficulties. Prolonged unemployment in individuals with bipolar disorder is associated with more episodes of depression, older age, increased rates of current panic disorder, and lifetime history of alcohol use disorder. Major depressive disorder. Perhaps the most challenging differential diagnosis to con- sider is major depressive disorder, which may be accompanied by hypomanic or manic symptoms that do not meet full criteria (i.e., either fewer symptoms or a shorter duration than required for a hypomanic episode). This is especially true in evaluating individuals with symptoms of irritability, which may be associated with either major depressive dis- order or bipolar II disorder. Cyclothymic disorder. In cyclothymic disorder, there are numerous periods of hypo- manic symptoms and numerous periods of depressive symptoms that do not meet symp— tom or duration criteria for a major depressive episode. Bipolar II disorder is distinguished from cyclothymic disorder by the presence of one or more major depressive episodes. If a major depressive episode occurs after the first 2 years of cyclothymic disorder, the addi- tional diagnosis of bipolar II disorder is given. Schizophrenia spectrum and other related psychotic disorders. Bipolar II disorder must be distinguished from psychotic disorders (e.g., schizoaffective disorder, schizophrenia, and delusional disorder). Schizophrenia, schizoaffective disorder, and delusional disor- der are all characterized by periods of psychotic symptoms that occur in the absence of prominent mood symptoms. Other helpful considerations include the accompanying symptoms, previous course, and family history. Panic disorder or other anxiety disorders. Anxiety disorders need to be considered in the differential diagnosis and may frequently be present as co-occurring disorders. Substance use disorders. Substance use disorders are included in the differential diag~ nosis. Attention-deficit/hyperactivity disorder. Attention-deficit/hyperactivity disorder (ADHD) may be misdiagnosed as bipolar II disorder, especially in adolescents and children. Many symptoms of ADHD, such as rapid speech, racing thoughts, distractibility, and less need for sleep, overlap with the symptoms of hypomania. The double counting of symptoms to- ward both ADHD and bipolar II disorder can be avoided if the clinician clarifies whether the symptoms represent a distinct episode and if the noticeable increase over baseline re- quired for the diagnosis of bipolar II disorder is present. Personality disorders. The same convention as applies for ADHD also applies when evaluating an individual for a personality disorder such as borderline personality disor- der, since mood lability and impulsivity are common in both personality disorders and bi- polar II disorder. Symptoms must represent a distinct episode, and the noticeable increase over baseline required for the diagnosis of bipolar II disorder must be present. A diagnosis the lifetime history supports the presence of a personality disorder. Other bipolar disorders. Diagnosis of bipolar II disorder should be differentiated from ing the presence of fully syndromal hypomania and depression. Bipolar II disorder is more often than not associated with one or more co—occurring mental disorders, with anxiety disorders being the most common. Approximately 60% of individ- uals with bipolar II disorder have three or more co-occurring mental disorders; 75% have an anxiety disorder; and 37% have a substance use disorder. Children and adolescents with bipolar II disorder have a higher rate of co-occurring anxiety disorders compared with those with bipolar I disorder, and the anxiety disorder most often predates the bi- polar disorder. Anxiety and substance use disorders occur in individuals with bipolar II disorder at a higher rate than in the general population. Approximately 14% of individuals with bipolar II disorder have at least one lifetime eating disorder, with binge-eating dis- order being more common than bulimia nervosa and anorexia nervosa. These commonly co-occurring disorders do not seem to follow a course of illness that is truly independent from that of the bipolar disorder, but rather have strong associations with mood states. For example, anxiety and eating disorders tend to associate most with depressive symptoms, and substance use disorders are moderately associated with manic symptoms. Diagnostic Criteria 301.13 (F34.0)A. For at least 2 years (at least 1 year in children and adolescents) there have been nu- merous periods with hypomanic symptoms that do not meet criteria for a hypomanic episode and numerous periods with depressive symptoms that do not meet criteria for a major depressive episode. B. During the above 2-year period (1 year in children and adolescents), the hypomanic and depressive periods have been present for at least half the time and the individual has not been without the symptoms for more than 2 months at a time. C. Criteria for a major depressive, manic, or hypomanic episode have never been met. D. The symptoms in Criterion A are not better explained by schizoaffective disorder. schizophrenia, schizophreniform disorder, delusional disorder. or other specified or un- specified schizophrenia spectrum and other psychotic disorder. E. The symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., hyperthyroidism). F. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Specify it:With anxious distress (see p. 149)The essential feature of cyclothymic disorder is a chronic, fluctuating mood disturbance involving numerous periods of hypomanic symptoms and periods of depressive symp- toms that are distinct from each other (Criterion A). The hypomanic symptoms are of insufficient number, severity, pervasiveness, or duration to meet full criteria for a hypo- manic episode, and the depressive symptoms are of insufficient number, severity, perva— siveness, or duration to meet full criteria for a major depressive episode. During the initial 2-year period (1 year for children or adolescents), the symptoms must be persistent (pres— ent more days than not), and any symptom—free intervals last no longer than 2 months (Criterion B). The diagnosis of cyclothymic disorder is made only if the criteria for a major depressive, manic, or hypomanic episode have never been met (Criterion C). If an individual with cyclothymic disorder subsequently (i.e., after the initial 2 years in adults or 1 year in children or adolescents) experiences a major depressive, manic, or hy- pomanic episode, the diagnosis changes to major depressive disorder, bipolar I disorder, or other specified or unspecified bipolar and related disorder (subclassified as hypomanic episode without prior major depressive episode), respectively, and the cyclothymic disor- der diagnosis is dropped. The cyclothymic disorder diagnosis is not made if the pattern of mood swings is better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delu- sional disorder, or other specified and unspecified schizophrenia spectrum and other psychotic disorders (Criterion D), in which case the mood symptoms are considered asso- ciated features of the psychotic disorder. The mood disturbance must also not be attribut- able to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., hyperthyroidism) (Criterion E). Although some individ- uals may function particularly well during some of the periods of hypomania, over the prolonged course of the disorder, there must be clinically significant distress or impair- ment in social, occupational, or other important areas of functioning as a result of the mood disturbance (Criterion F). The impairment may develop as a result of prolonged pe- riods of cyclical, often unpredictable mood changes (e.g., the individual may be regarded as temperamental, moody, unpredictable, inconsistent, or unreliable). The lifetime prevalence of cyclothymic disorder is approximately 0.4%—1%. Prevalence in mood disorders clinics may range from 3% to 5%. In the general population, cyclothymic disorder is apparently equally common in males and females. In clinical settings, females with cyclothymic disorder may be more likely to present for treatment than males. Cyclothymic disorder usually begins in adolescence or early adult life and is sometimes considered to reflect a temperamental predisposition to other disorders in this chapter. Cyclothymic disorder usually has an insidious onset and a persistent course. There is a 15%—50% risk that an individual with cyclothymic disorder will subsequently develop bi- polar I disorder or bipolar II disorder. Onset of persistent, fluctuating hypomanic and de- pressive symptoms late in adult life needs to be clearly differentiated from bipolar and related disorder due to another medical condition and depressive disorder due to another medical condition (e. g., multiple sclerosis) before the cyclothymic disorder diagnosis IS as- signed Among children with cyclothymic disorder, the mean age at onset of symptoms 15 6. 5 years of age. Genetic and physiological. Major depressive disorder, bipolar I disorder, and bipolar II disorder are more common among first-degree biological relatives of individuals with cyclo- thymic disorder than in the general population. There may also be an increased familial risk of substance-related disorders. Cyclothymic disorder may be more common in the first—degree biological relatives of individuals with bipolar I disorder than in the general population. Bipolar and related disorder due to another medical condition and depressive disorder due to another medical condition. The diagnosis of bipolar and related disorder due to another medical condition or depressive disorder due to another medical condition is made when the mood disturbance is judged to be attributable to the physiological effect of a specific, usually chronic medical condition (e.g., hyperthyroidism). This determination is based on the history, physical examination, or laboratory findings. If it is judged that the hypomanic and depressive symptoms are not the physiological consequence of the med- ical condition, then the primary mental disorder (i.e., cyclothymic disorder) and the med- ical condition are coded. For example, this would be the case if the mood symptoms are considered to be the psychological (not the physiological) consequence of having a chronic medical condition, or if there is no etiological relationship between the hypomanic and de- pressive symptoms and the medical condition. tion-induced depressive disorder. Substance/medicati0n-induced bipolar and related disorder and substance/medication-induced depressive disorder are distinguished from cyclothymic disorder by the judgment that a substance/ medication (especially stimu- lants) is etiologically related to the mood disturbance. The frequent mood swings in these disorders that are suggestive of cyclothymic disorder usually resolve following cessation of substance/medication use. Bipolar l disorder, with rapid cycling, and bipolar II disorder, with rapid cycling. Both disorders may resemble cyclothymic disorder by virtue of the frequent marked shifts in mood. By definition, in cyclothymic disorder the criteria for a major depressive, manic, or hypomanic episode has never been met, whereas the bipolar I disorder and bipolar II disorder specifier "with rapid cycling” requires that full mood episodes be present. Borderline personality disorder. Borderline personality disorder is associated with marked shifts in mood that may suggest cyclothymic disorder. If the criteria are met for both disorders, both borderline personality disorder and cyclothymic disorder may be di- agnosed. Substance-related disorders and sleep disorders (i.e., difficulties in initiating and main- taining sleep) may be present in individuals with cyclothymic disorder. Most children conditions; they are more likely than other pediatric patients with mental disorders to have comorbid attention-deficit/hyperactivity disorder. A. A prominent and persistent disturbance in mood that predominates in the clinical picture and is characterized by elevated, expansive, or irritable mood, with or without depressed mood, or markedly diminished interest or pleasure in all, or almost all, activities. B. There is evidence from the history, physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or withdrawal or after exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by a bipolar or related disorder that is not sub- stance/medication-induced. Such evidence of an independent bipolar or related disor- der could include the following: The symptoms precede the onset of the substance/medication use; the symptoms per- sist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence suggesting the existence (e.g., a history of recurrent non-substance/medication-related episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Coding note: The ICD-Q-CM and ICD-10-CM codes for the [specific substance/medication]- induced bipolar and related disorders are indicated in the table below. Note that the ICD-10- CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the substance- induced bipolar and related disorder, the 4th position character is “1," and the clinician should record “mild [substance] use disorder’ before the substance-induced bipolar and related dis- order (e.g., “mild cocaine use disorder with cocaine-induced bipolar and related disordef'). If a moderate or severe substance use disorder is comorbid with the substance-induced bipolar and related disorder, the 4th position character is “2," and the clinician should record “moder- ate [substance] use disorder" or “severe [substance] use disorder," depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one-time heavy use of the substance), then the 4th position character is ”9," and the clinician should record only the substance-induced bipolar and related disorder. With use disorder, Without disorder, moderate useAlcohol 291.89 F1014 F1024 F10.94Phencyclidine 292.84 F1614 F1624 F1694Other hallucinogen 292.84 F1614 F1624 F1694With use disorder, Without disorder, moderate useSedative, hypnotic, or anxiolytic 292.84 F1314 F1324 F1394Amphetamine (or other 292.84 F1514 F1524 F1594Cocaine 292.84 F14.14 F1424 F1494Other (or unknown) substance 292.84 F1914 F1924 F1994Specify if (see Table 1 in the chapter “Substance-Ftelated and Addictive Disorders" for di- agnoses associated with substance class): With onset during intoxication: If the criteria are met for intoxication with the sub- stance and the symptoms develop during intoxication. With onset during withdrawal: If criteria are met for withdrawal from the substance and the symptoms develop during, or shortly after, withdrawal. |CD-9-CM. The name of the substance/medication-induced bipolar and related disor- der begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the bipolar mood symptoms. The diagnostic code is selected from the table in- cluded in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., dexamethasone), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category ”unknown substance” should be used. The name of the disorder is followed by the specification of onset (i.e., onset during in- toxication, onset during withdrawal). Unlike the recording procedures for ICD-lO-CM, which combine the substance-induced disorder and substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of irritable symptoms occurring during intoxication in a man with a severe cocaine use disorder, the diagnosis is 292.84 cocaine-induced bipolar and related disorder, with onset during intoxication. An additional diagnosis of 304.20 severe cocaine use disorder is also given. When more than one substance is judged to play a significant role in the development of bipolar mood symptoms, each should be listed separately (e.g., 292.84 methylphenidate-induced bipolar and related disorder, with onset during intoxi- cation; 292.84 dexamethasone-induced bipolar and related disorder, with onset during in- toxication). |CD-10-CM. The name of the substance/medication-induced bipolar and related disor- der begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the bipolar mood symptoms. The diagnostic code is selected from the table in- cluded in the criteria set, which is based on the drug class and presence or absence of a co- morbid substance use disorder. For substances that do not fit into any of the classes (e.g., dexamethasone), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is un- known, the category "unknown substance” should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word ”with," followed by the name of the substance-induced bipolar and related disorder, followed by the specification of onset (i.e., onset during in— toxication, onset during withdrawal). For example, in the case of irritable symptoms oc- curring during intoxication in a man with a severe cocaine use disorder, the diagnosis is F1424 severe cocaine use disorder with cocaine-induced bipolar and related disorder, with onset during intoxication. A separate diagnosis of the comorbid severe cocaine use disorder is not given. If the substance—induced bipolar and related disorder occurs without a comorbid substance use disorder (e.g., after a one-time heavy use of the substance), no accompanying substance use disorder is noted (e.g., F1594 amphetamine-induced bipolar and related disorder, with onset during intoxication). When more than one substance is judged to play a significant role in the development of bipolar mood symptoms, each should be listed separately (e.g., F15.24 severe methylphenidate use disorder with meth- ylphenidate-induced bipolar and related disorder, with onset during intoxication; F1994 dexamethasone-induced bipolar and related disorder, with onset during intoxication). The diagnostic features of substance/medication—induced bipolar and related disorder are es- sentially the same as those for mania, hypomania, or depression. A key exception to the diag- nosis of substance/medication—induced bipolar and related disorder is the case of hypomania yond the physiological effects of the medication. This condition is considered an indicator of true bipolar disorder, not substance/ medication-induced bipolar and related disorder. Simi- larly, individuals with apparent electroconvulsive therapy—induced manic or hypomanic ep- isodes that persist beyond the physiological effects of the treatment are diagnosed with bipolar disorder, not substance/medication-induced bipolar and related disorder. Side effects of some antidepressants and other psychotropic drugs (e.g., edginess, ag— itation) may resemble the primary symptoms of a manic syndrome, but they are funda- mentally distinct from bipolar symptoms and are insufficient for the diagnosis. That is, the criterion symptoms of mania/hypomania have specificity (simple agitation is not the same as excess involvement in purposeful activities), and a sufficient number of symptoms must be present (not just one or two symptoms) to make these diagnoses. In particular, the appearance of one or two nonspecific symptoms—irritability, edginess, or agitation during antidepressant treatment—in the absence of a full manic or hypomanic syndrome should not be taken to support a diagnosis of a bipolar disorder. Etiology (causally related to the use of psychotropic medications or substances of abuse based on best clinical evidence) is the key variable in this etiologically specified form of bi- polar disorder. Substances/ medications that are typically considered to be associated with substance/medication-induced bipolar and related disorder include the stimulant class of drugs, as well as phencyclidine and steroids; however, a number of potential sub- stances continue to emerge as new compounds are synthesized (e.g., so-called bath salts). A history of such substance use may help increase diagnostic certainty. There are no epidemiological studies of substance/medication-induced mania or bipolar disorder. Each etiological substance may have its own individual risk of inducing a bipo- lar (manic/hypomanic) disorder. In phencyclidine—induced mania, the initial presentation may be one of a delirium with af- fective features, which then becomes an atypically appearing manic or mixed manic state. Bipolar and Related Disorder Due to Another Medical Condition 145 This condition follows the ingestion or inhalation quickly, usually within hours or, at the most, a few days. In stimulant-induced manic or hypomanic states, the response is in min- utes to 1 hour after one or several ingestions or injections. The episode is very brief and typically resolves over 1—2 days. With corticosteroids and some immunosuppressant medications, the mania (or mixed or depressed state) usually follows several days of in- gestion, and the higher doses appear to have a much greater likelihood of producing bi- polar symptoms. Determination of the substance of use can be made through markers in the blood or urine to corroborate diagnosis. from other bipolar disorders, substance intoxication or substance-induced delirium, and medication side effects (as noted earlier). A full manic episode that emerges during anti- depressant treatment (e.g., medication, electroconvulsive therapy) but persists at a fully syndromal level beyond the physiological effect of that treatment is sufficient evidence for a bipolar I diagnosis. A full hypomanic episode that emerges during antidepressant treat- ment (e.g., medication, electroconvulsive therapy) but persists at a fully syndromal level beyond the physiological effect of that treatment is sufficient evidence for a bipolar II di- agnosis only if preceded by a major depressive episode. Comorbidities are those associated with the use of illicit substances (in the case of illegal stimulants or phencyclidine) or diversion of prescribed stimulants. Comorbidities related to steroid or immunosuppressant medications are those medical indications for these preparations. Delirium can occur before or along with manic symptoms in individuals in- gesting phencyclidine or those who are prescribed steroid medications or other immuno- suppressant medications. Due to Another Medical ConditionA. A prominent and persistent period of abnormally elevated, expansive, or irritable mood and abnormally increased activity or energy that predominates in the clinical picture. There is evidence from the history. physical examination, or laboratory findings that the dis- turbance is the direct pathophysiological consequence of another medical condition. . The disturbance is not better explained by another mental disorder. . The disturbance does not occur exclusively during the course of a delirium. . The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning, or necessitates hospitalization to pre- vent harm to self or others, or there are psychotic features. Coding note: The lCD-9-CM code for bipolar and related disorder due to another medical condition is 293.83, which is assigned regardless of the specifier. The |CD-10-CM code depends on the specifier (see below). Specify if: (F0633) With manic features: Full criteria are not met for a manic or hypomanic ep- isode. (F0633) With manic- or hypomanic-like episode: Full criteria are met except Crite- rion D for a manic episode or except Criterion F for a hypomanic episode. (F0634) With mixed features: Symptoms of depression are also present but do not predominate in the clinical picture. Coding note: Include the name of the other medical condition in the name of the mental disorder (e.g., 293.83 [F0633] bipolar disorder due to hyperthyroidism, with manic tea- tures). The other medical condition should also be coded and listed separately immedi- ately before the bipolar and related disorder due to the medical condition (e.g., 242.90 [E0590] hyperthyroidism; 293.83 [F0633] bipolar disorder due to hyperthyroidism, with manic features). The essential features of bipolar and related disorder due to another medical condition are presence of a prominent and persistent period of abnormally elevated, expansive, or irri- table mood and abnormally increased activity or energy predominating in the clinical pic- ture that is attributable to another medical condition (Criterion B). In most cases the manic or hypomanic picture may appear during the initial presentation of the medical condition (i.e., within 1 month); however, there are exceptions, especially in chronic medical condi- tions that might worsen or relapse and herald the appearance of the manic or hypomanic picture. Bipolar and related disorder due to another medical condition would not be diag- nosed when the manic or hypomanic episodes definitely preceded the medical condition, since the proper diagnosis would be bipolar disorder (except in the unusual circumstance in which all preceding manic or hypomanic episodes—or, when only one such episode has occurred, the preceding manic or hypomanic episode—were associated with ingestion of a substance/medication). The diagnosis of bipolar and related disorder due to another medical condition should not be made during the course of a delirium (Criterion D). The manic or hypomanic episode in bipolar and related disorder due to another medical con- dition must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning to qualify for this diagnosis (Criterion E). Etiology (i.e., a causal relationship to another medical condition based on best clinical ev- idence) is the key variable in this etiologically specified form of bipolar disorder. The list- ing of medical conditions that are said to be able to induce mania is never complete, and the clinician’s best judgment is the essence of this diagnosis. Among the best known of the medical conditions that can cause a bipolar manic or hypomanic condition are Cushing's disease and multiple sclerosis, as well as stroke and traumatic brain injuries. Bipolar and related disorder due to another medical condition usually has its onset acutely or subacutely within the first weeks or month of the onset of the associated medical con- dition. However, this is not always the case, as a worsening or later relapse of the associ- ated medical condition may precede the onset of the manic or hypomanic syndrome. The clinician must make a clinical judgment in these situations about whether the medical con- dition is causative, based on temporal sequence as well as plausibility of a causal relation- Bipolar and Related Disorder Due to Another Medical Condition 147 ship. Finally, the condition may remit before or just after the medical condition remits, particularly when treatment of the manic/hypomanic symptoms is effective. Culture-related differences, to the extent that there is any evidence, pertain to those asso- ciated with the medical condition (e.g., rates of multiple sclerosis and stroke vary around the world based on dietary, genetic factors, and other environmental factors). Gender differences pertain to those associated with the medical condition (e.g., systemic lupus erythematosus is more common in females; stroke is somewhat more common in middle-age males compared with females). Diagnostic markers pertain to those associated with the medical condition (e.g., steroid levels in blood or urine to help corroborate the diagnosis of Cushing’s disease, which can be associated with manic or depressive syndromes; laboratory tests confirming the diag- nosis of multiple sclerosis). Functional Consequences of Bipolar and RelatedDisorder Due to Another Medical ConditionFunctional consequences of the bipolar symptoms may exacerbate impairments associ- ated with the medical condition and may incur worse outcomes due to interference with medical treatment. In general, it is believed, but not established, that the illness, when in— duced by Cushing’s disease, will not recur if the Cushing’s disease is cured or arrested. However, it is also suggested, but not established, that mood syndromes, including de- pressive and manic/hypomanic ones, may be episodic (i.e., recurring) with static brain in- juries and other central nervous system diseases. Symptoms of delirium, catatonia, and acute anxiety. It is important to differentiate symptoms of mania from excited or hypervigilant delirious symptoms; from excited cata- tonic symptoms; and from agitation related to acute anxiety states. Medication-induced depressive or manic symptoms. An important differential diag- nostic observation is that the other medical condition may be treated with medications (e.g., steroids or alpha-interferon) that can induce depressive or manic symptoms. In these cases, clinical judgment using all of the evidence in hand is the best way to try to separate the most likely and/ or the most important of two etiological factors (i.e., association with the medical condition vs. a substance/medication~induced syndrome). The differential di— agnosis of the associated medical conditions is relevant but largely beyond the scope of the present manual. Conditions comorbid with bipolar and related disorder due to another medical condition are those associated with the medical conditions of etiological relevance. Delirium can oc- cur before or along with manic symptoms in individuals with Cushing’s disease. 296.89 (F31.89)This category applies to presentations in which symptoms characteristic of a bipolar and related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the bipolar and related disorders diagnostic class. The other specified bipolar and related disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the cri- teria for any specific bipolar and related disorder. This is done by recording “other speci- fied bipolar and related disorder" followed by the specific reason (e.g., “short-duration cyclothymia"). Examples of presentations that can be specified using the “other specified“ designation include the following: 1. Short-duration hypomanic episodes (2-3 days) and major depressive episodes: A lifetime history of one or more major depressive episodes in individuals whose presenta- two or more episodes of short-duration hypomania that meet the full symptomatic criteria for a hypomanic episode but that only last for 2—3 days. The episodes of hypomanic symp- toms do not overlap in time with the major depressive episodes, so the disturbance does not meet criteria for major depressive episode, with mixed features. 2. Hypomanic episodes with insufficient symptoms and major depressive epi- sodes: A lifetime history of one or more major depressive episodes in individuals who have experienced one or more episodes of hypomania that do not meet full symp- tomatic criteria (i.e., at least 4 consecutive days of elevated mood and one or two of the other symptoms of a hypomanic episode, or irritable mood and two or three of the other symptoms of a hypomanic episode). The episodes of hypomanic symptoms do not overlap in time with the major depressive episodes, so the disturbance does not meet criteria for major depressive episode, with mixed features. 3. Hypomanic episode without prior major depressive episode: One or more hypo- jor depressive episode or a manic episode. If this occurs in an individual with an established diagnosis of persistent depressive disorder (dysthymia), both diagnoses can be concurrently applied during the periods when the full criteria for a hypomanic episode are met. 4. Short-duration cyclothymia (less than 24 months): Multiple episodes of hypomanic symptoms that do not meet criteria for a hypomanic episode and multiple episodes of de- over a period of less than 24 months (less than 12 months for children or adolescents) in an individual whose presentation has never met full criteria for a major depressive, manic, or hypomanic episode and does not meet criteria for any psychotic disorder. Dur- ing the course of the disorder, the hypomanic or depressive symptoms are present for more days than not, the individual has not been without symptoms for more than 2 months at a time, and the symptoms cause clinically significant distress or impairment. 296.80 (F31.9)This category applies to presentations in which symptoms characteristic of a bipolar and related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the bipolar and related disorders diagnostic class. The unspec- ified bipolar and related disorder category is used in situations in which the clinician choos- es not to specify the reason that the criteria are not met for a specific bipolar and related disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). Specify it:With anxious distress: The presence of at least two of the following symptoms during the majority of days of the current or most recent episode of mania, hypomania, or de— pression: Feeling keyed up or tense.Feeling unusually restless.Difficulty concentrating because of worry.Fear that something awful may happen.Feeling that the individual might lose control of himself or herself. Specify current severity:Mild: Two symptoms.Moderate: Three symptoms.Moderate-severe: Four or five symptoms.Severe: Four or five symptoms with motor agitation.Note: Anxious distress has been noted as a prominent feature of both bipolar and tings. High levels of anxiety have been associated with higher suicide risk, longer duration of illness, and greater likelihood of treatment nonresponse. As a result, it is clinically useful to specify accurately the presence and severity levels of anxious distress for treatment planning and monitoring of response to treatment. With mixed features: The mixed features specifier can apply to the current manic, hy- pomanic, or depressive episode in bipolar I or bipolar II disorder: 91:59-39)?“ Manic or hypomanic episode, with mixed features:A. Full criteria are met for a manic episode or hypomanic episode, and at least three of the following symptoms are present during the majority of days of the current or most recent episode of mania or hypomania: 1. Prominent dysphoria or depressed mood as indicated by either subjective report (e.g., feels sad or empty) or observation made by others (e.g., ap- pears tearful). 2. Diminished interest or pleasure in all, or almost all, activities (as indicated by either subjective account or observation made by others). 3. Psychomotor retardation nearly every day (observable by others; not merely subjective feelings of being slowed down). 4. Fatigue or loss of energy.5. Feelings of worthlessness or excessive or inappropriate guilt (not merely seIf-reproach or guilt about being sick). 6. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ide- ation without a specific plan, or a suicide attempt or a specific plan for com- mitting suicide. B. Mixed symptoms are observable by others and represent a change from the person’s usual behavior. C. For individuals whose symptoms meet full episode criteria for both mania and depression simultaneously, the diagnosis should be manic episode, with mixed features, due to the marked impairment and clinical severity of full mania. D. The mixed symptoms are not attributable to the physiological effects of a sub- stance (e.g., a drug of abuse, a medication, other treatment). Depressive episode, with mixed features:A. Full criteria are met for a major depressive episode, and at least three of the fol- lowing manic/hypomanic symptoms are present during the majority of days of the current or most recent episode of depression: Elevated, expansive mood.Inflated self-esteem or grandiosity.More talkative than usual or pressure to keep talking.Flight of ideas or subjective experience that thoughts are racing. Increase in energy or goaI-directed activity (either socially, at work or school, or sexually). 6. Increased or excessive involvement in activities that have a high potential for painful consequences (e.g., engaging in unrestrained buying sprees, sexual indiscretions, or foolish business investments). 7. Decreased need for sleep (feeling rested despite sleeping less than usual; to be contrasted with insomnia). B. Mixed symptoms are observable by others and represent a change from the person’s usual behavior. C. For individuals whose symptoms meet full episode criteria for both mania and depression simultaneously, the diagnosis should be manic episode, with mixed features. D. The mixed symptoms are not attributable to the physiological effects of a sub- stance (e.g., a drug of abuse, a medication, or other treatment). Note: Mixed features associated with a major depressive episode have been found to be a significant risk factor for the development of bipolar | or bipolar II disorder. As a result. it is clinically useful to note the presence of this specifier for treatment planning and monitoring of response to treatment. With rapid cycling (can be applied to bipolar | or bipolar II disorder): Presence of at least four mood episodes in the previous 12 months that meet the criteria for manic, hypomanic, or major depressive episode. Note: Episodes are demarcated by either partial or full remissions of at least 2 months or a switch to an episode of the opposite polarity (e.g., major depressive episode to manic episode). Note: The essential feature of a rapid-cycling bipolar disorder is the occurrence of at least four mood episodes during the previous 12 months. These episodes can occur in any combination and order. The episodes must meet both the duration and symptom number criteria for a major depressive, manic, or hypomanic episode and must be demarcated by either a period of full remission or a switch to an episode of the opposite polarity. Manic and hypomanic episodes are counted as being on the same pole. Except for the fact that they occur more frequently, the episodes that occur in a rapid-cycling pattern are no different from those that occur in a non-rapid- cycling pattern. Mood episodes that count toward defining a rapid-cycling pattern exclude those episodes directly caused by a substance (e.g., cocaine, corticoste- roids) or another medical condition. With melancholic features:One of the following is present during the most severe period of the current episode: 1. Loss of pleasure in all, or almost all, activities. 2. Lack of reactivity to usually pleasurable stimuli (does not feel much better, even temporarily, when something good happens). Three (or more) of the following: 1. A distinct quality of depressed mood characterized by profound despondency, despair, and/or moroseness or by so-called empty mood. Depression that is regularly worse in the morning.EarIy-morning awakening (i.e., at least 2 hours before usual awakening). Marked psychomotor agitation or retardation.Significant anorexia or weight loss.Excessive or inappropriate guilt.Note: The specifier “with melancholic features“ is applied if these features are pres- ent at the most severe stage of the episode. There is a near-complete absence of the capacity for pleasure, not merely a diminution. A guideline for evaluating the lack of reactivity of mood is that even highly desired events are not associated with marked brightening of mood. Either mood does not brighten at all, or it brightens only partially (e.g., up to 20%-40% of normal for only minutes at a time). The “dis- tinct quality” of mood that is characteristic of the “with melancholic features" speci- fier is experienced as qualitatively different from that during a nonmelancholic depressive episode. A depressed mood that is described as merely more severe, longer lasting, or present without a reason is not considered distinct in quality. Psy- chomotor changes are nearly always present and are observable by others. Melancholic features exhibit only a modest tendency to repeat across episodes in the same individual. They are more frequent in inpatients, as opposed to outpa- tients; are less likely to occur in milder than in more severe major depressive epi- sodes; and are more likely to occur in those with psychotic features. With atypical features: This specifier can be applied when these features predomi- nate during the majority of days of the current or most recent major depressive epi- sode. Mood reactivity (i.e., mood brightens in response to actual or potential positive events). Two (or more) of the following features: 1. Significant weight gain or increase in appetite. 2. Hypersomnia.3. Leaden paralysis (i.e., heavy, leaden feelings in arms or legs). 4. A long-standing pattern of interpersonal rejection sensitivity (not limited to epi- sodes of mood disturbance) that results in significant social or occupational impairment. C. Criteria are not met for “with melancholic features" or “with catatonia“ during the same episode. Note: “Atypical depression” has historical significance (i.e., atypical in contradis- tinction to the more classical agitated, “endogenous" presentations of depression that were the norm when depression was rarely diagnosed in outpatients and al- common or unusual clinical presentation as the term might imply. Mood reactivity is the capacity to be cheered up when presented with positive events (e.g., a visit from children, compliments from others). Mood may become euthymic (not sad) even for extended periods of time if the external circumstances remain favorable. Increased appetite may be manifested by an obvious increase in food intake or by weight gain. Hypersomnia may include either an extended period of nighttime sleep or daytime napping that totals at least 10 hours of sleep per day (or at least 2 hours more than when not depressed). Leaden paralysis is defined as feeling heavy, leaden, or weighted down, usually in the arms or legs. This sensation time. Unlike the other atypical features, pathological sensitivity to perceived inter- personal rejection is a trait that has an early onset and persists throughout most of adult life. Rejection sensitivity occurs both when the person is and is not depressed, though it may be exacerbated during depressive periods. With psychotic features: Delusions or hallucinations are present at any time in the episode. If psychotic features are present, specify if mood-congruent or mood-incon- gruent: With mood-congruent psychotic features: During manic episodes, the con- tent of all delusions and hallucinations is consistent with the typical manic themes of grandiosity, invulnerability, etc., but may also include themes of sus- piciousness or paranoia, especially with respect to others' doubts about the in- dividual’s capacities, accomplishments, and so forth. With mood-incongruent psychotic features: The content of delusions and hallucinations is inconsistent with the episode polarity themes as described above, or the content is a mixture of mood-incongruent and mood-congruent themes. With catatonia: This specifier can apply to an episode of mania or depression if cata- tonic features are present during most of the episode. See criteria for catatonia asso- ciated with a mental disorder in the chapter “Schizophrenia Spectrum and Other Psychotic Disorders.“With peripartum onset: This specifier can be applied to the current or, if the full crite- ria are not currently met for a mood episode, most recent episode of mania, hypoma- nia, or major depression in bipolar | or bipolar II disorder if onset of mood symptoms occurs during pregnancy or in the 4 weeks following delivery. Note: Mood episodes can have their onset either during pregnancy or postpartum. Although the estimates differ according to the period of Iollow-up after delivery, be- tween 3% and 6% of women will experience the onset of a major depressive epi- sode during pregnancy or in the weeks or months following delivery. Fifty percent of “postpartum" major depressive episodes actually begin prior to delivery. Thus, these episodes are referred to collectively as peripartum episodes. Women with attacks. Prospective studies have demonstrated that mood and anxiety symptoms during pregnancy, as well as the “baby blues," increase the risk for a postpartum major depressive episode. Peripartum-onset mood episodes can present either with or without psychotic featuresx Infanticide is most often associated with postpartum psychotic episodes that are characterized by command hallucinations to kill the infant or delusions that the infant is possessed, but psychotic symptoms can also occur in severe postpar- tum mood episodes without such specific delusions or hallucinations. Postpartum mood (major depressive or manic) episodes with psychotic features appear to occur in from 1 in 500 to 1 in 1,000 deliveries and may be more common in primiparous women. The risk of postpartum episodes with psychotic features is particularly increased for women with prior postpartum mood episodes but is also elevated for those with a prior history of a depressive or bipolar disorder (especially bipolar | disorder) and those with a family history of bipolar disorders. Once a woman has had a postpartum episode with psychotic features, the risk of recurrence with each subsequent delivery is between 30% and 50%. Postpartum episodes must be differentiated from delirium occurring in the postpartum period, which is distinguished by a fluctuating level of awareness or attention. The postpar- tum period is unique with respect to the degree of neuroendocrine alterations and psychosocial adjustments, the potential impact of breast-feeding on treatment plan- ning, and the Iong-term implications of a history of postpartum mood disorder on sub- sequent family planning. With seasonal pattern: This specifier applies to the lifetime pattern of mood episodes. The essential feature is a regular seasonal pattern of at least one type of episode (i.e., mania. hypomania, or depression). The other types of episodes may not follow this pat- tern. For example, an individual may have seasonal manias, but his or her depressions do not regularly occur at a specific time of year. A. There has been a regular temporal relationship between the onset of manic, hypo- manic, or major depressive episodes and a particular time of the year (e.g., in the fall or winter) in bipolar I or bipolar II disorder. Note: Do not include cases in which there is an obvious effect of seasonally related psychosocial stressors (e.g., regularly being unemployed every winter). B. Full remissions (or a change from major depression to mania or hypomania or vice versa) also occur at a characteristic time of the year (e.g., depression disappears in the spring). C. In the last 2 years, the individual’s manic, hypomanic, or major depressive episodes have demonstrated a temporal seasonal relationship, as defined above, and no non-seasonal episodes of that polarity have occurred during that 2-year period. D. Seasonal manias, hypomanias, or depressions (as described above) substantially outnumber any nonseasonal manias, hypomanias, or depressions that may have occurred over the individual‘s lifetime. Note: This specifier can be applied to the pattern of major depressive episodes in bipolar | disorder, bipolar II disorder, or major depressive disorder, recurrent. The essential feature is the onset and remission of major depressive episodes at char- acteristic times of the year. In most cases, the episodes begin in fall or winter and remit in spring. Less commonly, there may be recurrent summer depressive epi- sodes. This pattern of onset and remission of episodes must have occurred during at least a 2-year period, without any nonseasonal episodes occurring during this period. In addition, the seasonal depressive episodes must substantially outnum- ber any nonseasonal depressive episodes over the individual‘s lifetime. This specifier does not apply to those situations in which the pattern is better ex- plained by seasonally linked psychosocial stressors (e.g., seasonal unemployment or school schedule). Major depressive episodes that occur in a seasonal pattern are often characterized by prominent energy, hypersomnia, overeating, weight gain, and a craving for carbohydrates. It is unclear whether a seasonal pattern is more likely in recurrent major depressive disorder or in bipolar disorders. However, within the bipolar disorders group, a seasonal pattern appears to be more likely in bipolar II disorder than in bipolar | disorder. In some individuals, the onset of manic or hypomanic episodes may also be linked to a particular season. The prevalence of winter-type seasonal pattern appears to vary with latitude. age, and sex. Prevalence increases with higher latitudes. Age is also a strong pre- dictor of seasonality, with younger persons at higher risk for winter depressive epi- sodes. Specify it:In partial remission: Symptoms of the immediately previous manic, hypomanic, or depressive episode are present, but full criteria are not met, or there is a period lasting less than 2 months without any significant symptoms of a manic, hypomanic, or major depressive episode following the end of such an episode. In full remission: During the past 2 months, no significant signs or symptoms of the disturbance were present. Specify current severity:Severity is based on the number of criterion symptoms, the severity of those symptoms, and the degree of functional disability. Mild: Few. if any, symptoms in excess of those required to meet the diagnostic criteria are present, the intensity of the symptoms is distressing but manageable, and the symptoms result in minor impairment in social or occupational functioning. Moderate: The number of symptoms, intensity of symptoms, and/or functional impair- ment are between those specified for “mild” and “severe." Severe: The number of symptoms is substantially in excess of those required to make the diagnosis, the intensity of the symptoms is seriously distressing and unmanage- able, and the symptoms markedly interfere with social and occupational functioning. Depressive disorders include disruptive mood dysregulation disorder, major depressive disorder (including major depressive episode), persistent depressive disorder (dysthymia), premenstrual dysphoric disorder, substance/medication-induced depres- sive disorder, depressive disorder due to another medical condition, other specified de- pressive disorder, and unspecified depressive disorder. Unlike in DSM-IV, this chapter ”Depressive Disorders” has been separated from the previous chapter ”Bipolar and Re- lated Disorders.” The common feature of all of these disorders is the presence of sad, empty, or irritable mood, accompanied by somatic and cognitive changes that signifi- cantly affect the individual’s capacity to function. What differs among them are issues of duration, timing, or presumed etiology. In order to address concerns about the potential for the overdiagnosis of and treatment for bipolar disorder in children, a new diagnosis, disruptive mood dysregulation disorder, referring to the presentation of children with persistent irritability and frequent episodes of extreme behavioral dyscontrol, is added to the depressive disorders for children up to 12 years of age. Its placement in this chapter reflects the finding that children with this symptom pattern typically develop unipolar depressive disorders or anxiety disorders, rather than bipolar disorders, as they mature into adolescence and adulthood. Major depressive disorder represents the classic condition in this group of disorders. It is characterized by discrete episodes of at least 2 weeks’ duration (although most episodes last considerably longer) involving clear-cut changes in affect, cognition, and neurovege- tative functions and inter-episode remissions. A diagnosis based on a single episode is possible, although the disorder is a recurrent one in the majority of cases. Careful consid- eration is given to the delineation of normal sadness and grief from a major depressive ep- isode. Bereavement may induce great suffering, but it does not typically induce an episode of major depressive disorder. When they do occur together, the depressive symptoms and functional impairment tend to be more severe and the prognosis is worse compared with bereavement that is not accompanied by major depressive disorder. Bereavement—related depression tends to occur in persons with other vulnerabilities to depressive disorders, and recovery may be facilitated by antidepressant treatment. A more chronic form of depression, persistent depressive disorder (dysthymia), can be diagnosed when the mood disturbance continues for at least 2 years in adults or 1 year in children. This diagnosis, new in DSM-S, includes both the DSM-IV diagnostic categories of chronic major depression and dysthymia. After careful scientific review of the evidence, premenstrual dysphoric disorder has been moved from an appendix of DSM-IV (“Criteria Sets and Axes Provided for Further Study”) to Section II of DSM-S. Almost 20 years of additional of research on this condition has confirmed a specific and treatment-responsive form of depressive disorder that begins sometime following ovulation and remits within a few days of menses and has a marked impact on functioning. A large number of substances of abuse, some prescribed medications, and several medical conditions can be associated with depression—like phenomena. This fact is recog- nized in the diagnoses of substance/medication-induced depressive disorder and depres- sive disorder due to another medical condition. Diagnostic Criteria 296.99 (F34.8)A. Severe recurrent temper outbursts manifested verbally (e.g., verbal rages) and/or be- haviorally (e.g., physical aggression toward people or property) that are grossly out of proportion in intensity or duration to the situation or provocation. . The temper outbursts are inconsistent with developmental level.. The temper outbursts occur, on average, three or more times per week. . The mood between temper outbursts is persistently irritable or angry most of the day, nearly every day, and is observable by others (e.g., parents, teachers, peers). E. Criteria A—D have been present for 12 or more months. Throughout that time, the indi- vidual has not had a period lasting 3 or more consecutive months without all of the symptoms in Criteria A—D. F. Criteria A and D are present in at least two of three settings (i.e., at home, at school, with peers) and are severe in at least one of these. G. The diagnosis should not be made for the first time before age 6 years or after age 18 years. H. By history or observation, the age at onset of Criteria A—E is before 10 years. I. There has never been a distinct period lasting more than 1 day during which the full symptom criteria. except duration, for a manic or hypomanic episode have been met. Note: Developmentally appropriate mood elevation, such as occurs in the context of a highly positive event or its anticipation, should not be considered as a symptom of ma- nia or hypomania. J. The behaviors do not occur exclusively during an episode of major depressive disorder and are not better explained by another mental disorder (e.g., autism spectrum disor- der, posttraumatic stress disorder, separation anxiety disorder, persistent depressive disorder [dysthymia]). Note: This diagnosis cannot coexist with oppositional defiant disorder, intermittent ex- plosive disorder, or bipolar disorder, though it can coexist with others, including major depressive disorder, attention-deficit/hyperactivity disorder, conduct disorder, and substance use disorders. Individuals whose symptoms meet criteria for both disruptive diagnosis of disruptive mood dysregulation disorder. If an individual has ever experi- enced a manic or hypomanic episode, the diagnosis of disruptive mood dysregulation disorder should not be assigned. K. The symptoms are not attributable to the physiological effects of a substance or to an- other medical or neurological condition. The core feature of disruptive mood dysregulation disorder is chronic, severe persistent ir- ritability. This severe irritability has two prominent clinical manifestations, the first of which is frequent temper outbursts. These outbursts typically occur in response to frus- tration and can be verbal or behavioral (the latter in the form of aggression against prop- erty, self, or others). They must occur frequently (i.e., on average, three or more times per week) (Criterion C) over at least 1 year in at least two settings (Criteria E and F), such as in the home and at school, and they must be developmentally inappropriate (Criterion B). The second manifestation of severe irritability consists of chronic, persistently irritable or angry mood that is present between the severe temper outbursts. This irritable or angry mood must be characteristic of the child, being present most of the day, nearly every day, and noticeable by others in the child’s environment (Criterion D). The clinical presentation of disruptive mood dysregulation disorder must be carefully distinguished from presentations of other, related conditions, particularly pediatric bi- polar disorder. In fact, disruptive mood dysregulation disorder was added to DSM-S to address the considerable concern about the appropriate classification and treatment of children who present with chronic, persistent irritability relative to children who present with classic (i.e., episodic) bipolar disorder. Some researchers view severe, non-episodic irritability as characteristic of bipolar dis- order in children, although both DSM-IV and DSM-S require that both children and adults have distinct episodes of mania or hypomania to qualify for the diagnosis of bipolar I dis- order. During the latter decades of the 20th century, this contention by researchers that severe, nonepisodic irritability is a manifestation of pediatric mania coincided with an up- surge in the rates at which clinicians assigned the diagnosis of bipolar disorder to their pediatric patients. This sharp increase in rates appears to be attributable to clinicians com- bining at least two clinical presentations into a single category. That is, both classic, epi- sodic presentations of mania and non-episodic presentations of severe irritability have been labeled as bipolar disorder in children. In DSM-5, the term bipolar disorder is explicitly reserved for episodic presentations of bipolar symptoms. DSM-IV did not include a diagno- sis designed to capture youths whose hallmark symptoms consisted of very severe, non- episodic irritability, whereas DSM-S, with the inclusion of disruptive mood dysregulation disorder, provides a distinct category for such presentations. Disruptive mood dysregulation disorder is common among children presenting to pedi- atric mental health clinics. Prevalence estimates of the disorder in the community are un- clear. Based on rates of chronic and severe persistent irritability, which is the core feature of the disorder, the overall 6-month to 1-year period-prevalence of disruptive mood dys- regulation disorder among children and adolescents probably falls in the 2%—5% range. However, rates are expected to be higher in males and school-age children than in females and adolescents. The onset of disruptive mood dysregulation disorder must be before age 10 years, and the diagnosis should not be applied to children with a developmental age of less than 6 years. It is unknown whether the condition presents only in this age-delimited fashion. Because the symptoms of disruptive mood dysregulation disorder are likely to change as children mature, use of the diagnosis should be restricted to age groups similar to those in which validity has been established (7—18 years). Approximately half of children with severe, chronic irritability will have a presentation that continues to meet criteria for the condition 1 year later. Rates of conversion from severe, nonepisodic irritability to bipolar disorder are very low. Instead, children with chronic irritability are at risk to develop unipolar de- pressive and/ or anxiety disorders in adulthood. dysregulation disorder. Rates of bipolar disorder generally are very low prior to adoles- cence (<1%), with a steady increase into early adulthood (1%—2% prevalence). Disruptive mood dysregulation disorder is more common than bipolar disorder prior to adolescence, and symptoms of the condition generally become less common as children transition into adulthood. Temperamental. Children with chronic irritability typically exhibit complicated psy- chiatric histories. In such children, a relatively extensive history of chronic irritability is common, typically manifesting before full criteria for the syndrome are met. Such predi- agnostic presentations may have qualified for a diagnosis of oppositional defiant disorder. Many children with disruptive mood dysregulation disorder have symptoms that also order, with such diagnoses often being present from a relatively early age. For some chil- dren, the criteria for major depressive disorder may also be met. Genetic and physiological. In terms of familial aggregation and genetics, it has been suggested that children presenting with chronic, non-episodic irritability can be differen- tiated from children with bipolar disorder in their family-based risk. However, these two groups do not differ in familial rates of anxiety disorders, unipolar depressive disorders, or substance abuse. Compared with children with pediatric bipolar disorder or other men- tal illnesses, those with disruptive mood dysregulation disorder exhibit both commonal- ities and differences in information—processing deficits. For example, face-emotion labeling deficits, as well as perturbed decision making and cognitive control, are present in children with bipolar disorder and chronically irritable children, as well as in children with some other psychiatric conditions. There is also evidence for disorder-specific dys- function, such as during tasks assessing attention deployment in response to emotional stimuli, which has demonstrated unique signs of dysfunction in children with chronic ir- ritability. Children presenting to clinics with features of disruptive mood dysregulation disorder are predominantly male. Among community samples, a male preponderance appears to be supported. This difference in prevalence between males and females differentiates disrup- tive mood dysregulation disorder from bipolar disorder, in which there is an equal gender prevalence. In general, evidence documenting suicidal behavior and aggression, as well as other se- vere functional consequences, in disruptive mood dysregulation disorder should be noted when evaluating children with chronic irritability. Chronic, severe irritability, such as is seen in disruptive mood dysregulation disorder, is associated with marked disruption in a child’s family and peer relationships, as well as in school performance. Because of their extremely low frustration tolerance, such children generally have difficulty succeeding in school; they are often unable to participate in the activities typically enjoyed by healthy children; their family life is severely disrupted by their outbursts and irritability; and they have trouble initiating or sustaining friendships. Levels of dysfunction in children with bipolar disorder and disruptive mood dysregulation disorder are generally comparable. Both conditions cause severe disruption in the lives of the affected individual and their families. In both disruptive mood dysregulation disorder and pediatric bipolar disorder, dangerous behavior, suicidal ideation or suicide attempts, severe aggression, and psychiatric hospitalization are common. Because chronically irritable children and adolescents typically present with complex histo- ries, the diagnosis of disruptive mood dysregulation disorder must be made while consid- ering the presence or absence of multiple other conditions. Despite the need to consider many other syndromes, differentiation of disruptive mood dysregulation disorder from bi- polar disorder and oppositional defiant disorder requires particularly careful assessment. Bipolar disorders. The central feature differentiating disruptive mood dysregulation disor- der and bipolar disorders in children involves the longitudinal course of the core symptoms. In children, as in adults, bipolar I disorder and bipolar H disorder manifest as an episodic illness with discrete episodes of mood perturbation that can be differentiated from the child’s typical presentation. The mood perturbation that occurs during a manic episode is distinctly different from the child’s usual mood. In addition, during a manic episode, the change in mood must be accompanied by the onset, or worsening, of associated cognitive, behavioral, and physical symptoms (e.g., distractibility, increased goal-directed activity), which are also present to a de- gree that is distinctly different from the child’s usual baseline. Thus, in the case of a manic ep- isode, parents (and, depending on developmental level, children) should be able to identify a distinct time period during which the child’s mood and behavior were markedly different from usual. In contrast, the irritability of dismptive mood dysregulation disorder is persistent and is present over many months; while it may wax and wane to a certain degree, severe ini- tability is characteristic of the child with disruptive mood dysregulation disorder. Thus, while bipolar disorders are episodic conditions, disruptive mood dysregulation disorder is not. In fact, the diagnosis of disruptive mood dysregulation disorder cannot be assigned to a child or who has ever had a manic or hypomanic episode lasting more than 1 day. Another central is the presence of elevated or expansive mood and grandiosity. These symptoms are common features of mania but are not characteristic of disruptive mood dysregulation disorder. Oppositional defiant disorder. While symptoms of oppositional defiant disorder typi- cally do occur in children with disruptive mood dysregulation disorder, mood symptoms of disruptive mood dysregulation disorder are relatively rare in children with opposi- tional defiant disorder. The key features that warrant the diagnosis of disruptive mood fiant disorder are the presence of severe and frequently recurrent outbursts and a persis- tent disruption in mood between outbursts. In addition, the diagnosis of disruptive mood dysregulation disorder requires severe impairment in at least one setting (i.e., home, school, or among peers) and mild to moderate impairment in a second setting. For this rea- son, while most children whose symptoms meet criteria for disruptive mood dysregula- disorder, the reverse is not the case. That is, in only approximately 15% of individuals with be met. Moreover, even for children in whom criteria for both disorders are met, only the diagnosis of disruptive mood dysregulation disorder should be made. Finally, both the prominent mood symptoms in disruptive mood dysregulation disorder and the high risk for depressive and anxiety disorders in follow-up studies justify placement of disruptive mood dysregulation disorder among the depressive disorders in DSM-5. (Oppositional defiant disorder is included in the chapter "Disruptive, Impulse-Control, and Conduct Disorders") This reflects the more prominent mood component among individuals with disruptive mood dysregulation disorder, as compared with individuals with oppositional defiant disorder. Nevertheless, it also should be noted that disruptive mood dysregulation disorder appears to carry a high risk for behavioral problems as well as mood problems. Attention-deficit/hyperactivity disorder, major depressive disorder, anxiety disorders, and autism spectrum disorder. Unlike children diagnosed with bipolar disorder or op- positional defiant disorder, a child whose symptoms meet criteria for disruptive mood dysregulation disorder also can receive a comorbid diagnosis of ADHD, major depressive disorder, and/ or anxiety disorder. However, children whose irritability is present only in the context of a major depressive episode or persistent depressive disorder (dysthymia) should receive one of those diagnoses rather than disruptive mood dysregulation disor- der. Children with disruptive mood dysregulation disorder may have symptoms that also meet criteria for an anxiety disorder and can receive both diagnoses, but children whose ir- ritability is manifest only in the context of exacerbation of an anxiety disorder should re- ceive the relevant anxiety disorder diagnosis rather than disruptive mood dysregulation disorder. In addition, children with autism spectrum disorders frequently present with temper outbursts when, for example, their routines are disturbed. In that instance, the temper outbursts would be considered secondary to the autism spectrum disorder, and the child should not receive the diagnosis of disruptive mood dysregulation disorder. Intermittent explosive disorder. Children with symptoms suggestive of intermittent explosive disorder present with instances of severe temper outbursts, much like children with disruptive mood dysregulation disorder. However, unlike disruptive mood dysreg- ulation disorder, intermittent explosive disorder does not require persistent disruption in mood between outbursts. In addition, intermittent explosive disorder requires only 3 months of active symptoms, in contrast to the 12-month requirement for disruptive mood dys- regulation disorder. Thus, these two diagnoses should not be made in the same child. For children with outbursts and intercurrent, persistent irritability, only the diagnosis of dis- ruptive mood dysregulation disorder should be made. Rates of comorbidity in disruptive mood dysregulation disorder are extremely high. It is rare to find individuals whose symptoms meet criteria for disruptive mood dysregulation disorder alone. Comorbidity between disruptive mood dysregulation disorder and other the strongest overlap is with oppositional defiant disorder. Not only is the overall rate of comorbidity high in disruptive mood dysregulation disorder, but also the range of comor- bid illnesses appears particularly diverse. These children typically present to the clinic with a wide range of disruptive behavior, mood, anxiety, and even autism spectrum symptoms and diagnoses. However, children with disruptive mood dysregulation disor- der should not have symptoms that meet criteria for bipolar disorder, as in that context, only the bipolar disorder diagnosis should be made. If children have symptoms that meet mood dysregulation disorder, only the diagnosis of disruptive mood dysregulation disor- der should be assigned. Also, as noted earlier, the diagnosis of disruptive mood dysregu- lation disorder should not be assigned if the symptoms occur only in an anxiety- provoking context, when the routines of a child with autism spectrum disorder or obses- sive-compulsive disorder are disturbed, or in the context of a major depressive episode. A. Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure. Note: Do not include symptoms that are clearly attributable to another medical condition. 1. Depressed mood most of the day, nearly every day, as indicated by either subjec- tive report (e.g., feels sad, empty. hopeless) or observation made by others (e.g., appears tearful). (Note: In children and adolescents. can be irritable mood.) 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day. nearly every day (as indicated by either subjective account or observation). 3. Significant weight loss when not dieting or weight gain (e.g., a change of more than 5% of body weight in a month), or decrease or increase in appetite nearly every day. (Note: In children, consider failure to make expected weight gain.) 4. Insomnia or hypersomnia nearly every day. 5. Psychomotor agitation or retardation nearly every day (observable by others, not merely subjective feelings of restlessness or being slowed down). 6. Fatigue or loss of energy nearly every day.7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delu- sional) nearly every day (not merely seIf-reproach or guilt about being sick). 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (ei- ther by subjective account or as observed by others). 9. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation with- out a specific plan, or a suicide attempt or a specific plan for committing suicide. B. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. C. The episode is not attributable to the physiological effects of a substance or to another medical condition. Note: Criteria A—C represent a major depressive episode.Note: Responses to a significant loss (e.g., bereavement, financial ruin, losses from a nat- ural disaster, a serious medical illness or disability) may include the feelings of intense sad- ness, rumination about the loss, insomnia, poor appetite, and weight loss noted in Criterion A, which may resemble a depressive episode. Although such symptoms may be understand- able or considered appropriate to the loss, the presence of a major depressive episode in addition to the normal response to a significant loss should also be carefully considered. This decision inevitably requires the exercise of clinical judgment based on the individual’s history and the cultural norms for the expression of distress in the context of loss.1 D. The occurrence of the major depressive episode is not better explained by schizoaf- fective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or other specified and unspecified schizophrenia spectrum and other psychotic disorders. E. There has never been a manic episode or a hypomanic episode. Note: This exclusion does not apply if all of the manic-Iike or hypomanic-Iike episodes are substance-induced or are attributable to the physiological effects of another med- ical condition. 1In distinguishing grief from a major depressive episode (MDE), it is useful to consider that in grief the predominant affect is feelings of emptiness and loss, while in MDE it is persistent depressed mood and the inability to anticipate happiness or pleasure. The dysphoria in grief is likely to decrease in intensity over days to weeks and occurs in waves, the so-Called pangs of grief. These waves tend to be associated with thoughts or reminders of the deceased. The depressed mood of MDE is more persistent and not tied to specific thoughts or preoccupations. The pain of grief may be accompanied by positive emotions and humor that are uncharacteristic of the pervasive unhappiness and misery characteristic of MDE. The thought content associated with grief generally features a preoccupation with thoughts and memories of the deceased, rather than the self—critical or pessimistic ruminations seen in MDE. In grief, self—esteem is gener- ally preserved, whereas in MDE feelings of worthlessness and self—loathing are common. If self- derogatory ideation is present in grief, it typically involves perceived failings vis-a-vis the deceased (e.g., not visiting frequently enough, not telling the deceased how much he or she was loved). If a bereaved individual thinks about death and dying, such thoughts are generally focused on the deceased and possibly about "joining" the deceased, whereas in MDE such thoughts are focused on ending one’s own life because of feeling worthless, undeserving of life, or unable to cope with the pain of depression. The diagnostic code for major depressive disorder is based on whether this is a single or recurrent episode, current severity, presence of psychotic features, and remission status. Current severity and psychotic features are only indicated it full criteria are currently met for a major depressive episode. Remission specifiers are only indicated if the full criteria are not currently met for a major depressive episode. Codes are as follows: Mild (p. 188) 296.21 (F320) 296.31 (F330)Moderate (p. 188) 296.22 (F321) 296.32 (F33.1)Severe (p. 188) 296.23 (F322) 296.33 (F332)With psychotic features“ (p. 186) 296.24 (F323) 296.34 (F333)In partial remission (p. 188) 296.25 (F32.4) 296.35 (F33.41)In full remission (p. 188) 296.26 (F325) 296.36 (F33.42)Unspecified 296.20 (F329) 296.30 (F33.9) ‘For an episode to be considered recurrent, there must be an interval of at least 2 consecutive months between separate episodes in which criteria are not met for a major depressive episode. The defini- tions of specifiers are found on the indicated pages. "If psychotic features are present, code the "with psychotic features" specifier irrespective of epi- sode severity. In recording the name of a diagnosis, terms should be listed in the following order: major depressive disorder, single or recurrent episode, severity/psychotic/remission specifiers, followed by as many of the following specifiers without codes that apply to the current episode. With anxious distress (p. 184)With mixed features (pp. 184—185)With melancholic features (p. 185)With atypical features (pp. 185—186)With mood-congruent psychotic features (p. 186)With mood-incongruent psychotic features (p. 186)With catatonia (p. 186). Coding note: Use additional code 293.89 (F06.1). With peripartum onset (pp. 186—187)With seasonal pattern (recurrent episode only) (pp. 187—188)The criterion symptoms for major depressive disorder must be present nearly every day to be considered present, with the exception of weight change and suicidal ideation. De- pressed mood must be present for most of the day, in addition to being present nearly ev- ery day. Often insomnia or fatigue is the presenting complaint, and failure to probe for accompanying depressive symptoms will result in underdiagnosis. Sadness may be de- demeanor. With individuals who focus on a somatic complaint, clinicians should de- termine whether the distress from that complaint is associated with specific depressive symptoms. Fatigue and sleep disturbance are present in a high proportion of cases; psy- chomotor disturbances are much less common but are indicative of greater overall sever- ity, as is the presence of delusional or near-delusional guilt. The essential feature of a major depressive episode is a period of at least 2 weeks during which there is either depressed mood or the loss of interest or pleasure in nearly all activi- ties (Criterion A). In children and adolescents, the mood may be irritable rather than sad. The individual must also experience at least four additional symptoms drawn from a list that includes changes in appetite or weight, sleep, and psychomotor activity; decreased en- ergy; feelings of worthlessness or guilt; difficulty thinking, concentrating, or making deci- sions; or recurrent thoughts of death or suicidal ideation or suicide plans or attempts. To count toward a major depressive episode, a symptom must either be newly present or must have clearly worsened compared with the person’s pre-episode status. The symptoms must persist for most of the day, nearly every day, for at least 2 consecutive weeks. The ep- isode must be accompanied by clinically significant distress or impairment in social, occu- pational, or other important areas of functioning. For some individuals with milder episodes, functioning may appear to be normal but requires markedly increased effort. The mood in a major depressive episode is often described by the person as depressed, sad, hopeless, discouraged, or "down in the dumps" (Criterion A1). In some cases, sadness may be denied at first but may subsequently be elicited by interview (e.g., by pointing out that the individual looks as if he or she is about to cry). In some individuals who complain of feeling ”blah,” having no feelings, or feeling anxious, the presence of a depressed mood can be inferred from the person’s facial expression and demeanor. Some individuals em— phasize somatic complaints (e.g., bodily aches and pains) rather than reporting feelings of sadness. Many individuals report or exhibit increased irritability (e.g., persistent anger, a tendency to respond to events with angry outbursts or blaming others, an exaggerated sense of frustration over minor matters). In children and adolescents, an irritable or cranky mood may develop rather than a sad or dejected mood. This presentation should be dif- ferentiated from a pattern of irritability when frustrated. Loss of interest or pleasure is nearly always present, at least to some degree. Individ- uals may report feeling less interested in hobbies, “not caring anymore,” or not feeling any enjoyment in activities that were previously considered pleasurable (Criterion A2). Family members often notice social withdrawal or neglect of pleasurable avocations (e.g., a for- merly avid golfer no longer plays, a child who used to enjoy soccer finds excuses not to practice). In some individuals, there is a significant reduction from previous levels of sex- ual interest or desire. Appetite change may involve either a reduction or increase. Some depressed individ- uals report that they have to force themselves to eat. Others may eat more and may crave specific foods (e.g., sweets or other carbohydrates). When appetite changes are severe (in either direction), there may be a significant loss or gain in weight, or, in children, a failure to make expected weight gains may be noted (Criterion A3). Sleep disturbance may take the form of either difficulty sleeping or sleeping exces- sively (Criterion A4). When insomnia is present, it typically takes the form of middle in- somnia (i.e., waking up during the night and then having difficulty returning to sleep) or terminal insomnia (i.e., waking too early and being unable to return to sleep). Initial in- somnia (i.e., difficulty falling asleep) may also occur. Individuals who present with over- daytime sleep. Sometimes the reason that the individual seeks treatment is for the dis- turbed sleep. Psychomotor changes include agitation (e.g., the inability to sit still, pacing, hand- wringing; or pulling or rubbing of the skin, clothing, or other objects) or retardation (e.g., slowed speech, thinking, and body movements; increased pauses before answering; speech that is decreased in volume, inflection, amount, or variety of content, or muteness) (Criterion A5). The psychomotor agitation or retardation must be severe enough to be ob- servable by others and not represent merely subjective feelings. Decreased energy, tiredness, and fatigue are common (Criterion A6). A person may re- port sustained fatigue without physical exertion. Even the smallest tasks seem to require substantial effort. The efficiency with which tasks are accomplished may be reduced. For example, an individual may complain that washing and dressing in the morning are ex- hausting and take twice as long as usual. The sense of worthlessness or guilt associated with a major depressive episode may in- clude unrealistic negative evaluations of one’s worth or guilty preoccupations or rumina- tions over minor past failings (Criterion A7). Such individuals often misinterpret neutral or trivial day-to—day events as evidence of personal defects and have an exaggerated sense of responsibility for untoward events. The sense of worthlessness or guilt may be of delu- sional proportions (e.g., an individual who is convinced that he or she is personally re- sponsible for world poverty). Blaming oneself for being sick and for failing to meet occupational or interpersonal responsibilities as a result of the depression is very common and, unless delusional, is not considered sufficient to meet this criterion. Many individuals report impaired ability to think, concentrate, or make even minor decisions (Criterion A8). They may appear easily distracted or complain of memory diffi— culties. Those engaged in cognitively demanding pursuits are often unable to function. In children, a precipitous drop in grades may reflect poor concentration. In elderly individ- uals, memory difficulties may be the chief complaint and may be mistaken for early signs of a dementia (”pseudodementia”). When the major depressive episode is successfully treated, the memory problems often fully abate. However, in some individuals, particu- larly elderly persons, a major depressive episode may sometimes be the initial presenta- tion of an irreversible dementia. Thoughts of death, suicidal ideation, or suicide attempts (Criterion A9) are common. They may range from a passive wish not to awaken in the morning or a belief that others would be better off if the individual were dead, to transient but recurrent thoughts of com- mitting suicide, to a specific suicide plan. More severely suicidal individuals may have put their affairs in order (e.g., updated wills, settled debts), acquired needed materials (e.g., a rope or a gun), and chosen a location and time to accomplish the suicide. Motivations for suicide may include a desire to give up in the face of perceived insurmountable obstacles, an intense wish to end what is perceived as an unending and excruciatingly painful emo- tional state, an inability to foresee any enjoyment in life, or the wish to not be a burden to others. The resolution of such thinking may be a more meaningful measure of diminished suicide risk than denial of further plans for suicide. The evaluation of the symptoms of a major depressive episode is especially difficult when they occur in an individual who also has a general medical condition (e.g., cancer, stroke, myocardial infarction, diabetes, pregnancy). Some of the criterion signs and symp- toms of a major depressive episode are identical to those of general medical conditions (e.g., weight loss with untreated diabetes; fatigue with cancer; hypersomnia early in preg- nancy; insomnia later in pregnancy or the postpartum). Such symptoms count toward a major depressive diagnosis except when they are clearly and fully attributable to a general medical condition. Nonvegetative symptoms of dysphoria, anhedonia, guilt or worthless- ness, impaired concentration or indecision, and suicidal thoughts should be assessed with particular care in such cases. Definitions of major depressive episodes that have been mod- ified to include only these nonvegetative symptoms appear to identify nearly the same in- dividuals as do the full criteria. Major depressive disorder is associated with high mortality, much of which is accounted for by suicide; however, it is not the only cause. For example, depressed individuals ad- mitted to nursing homes have a markedly increased likelihood of death in the first year. In- dividuals frequently present with tearfulness, irritability, brooding, obsessive rumination, anxiety, phobias, excessive worry over physical health, and complaints of pain (e.g., head- aches; joint, abdominal, or other pains). In children, separation anxiety may occur. Although an extensive literature exists describing neuroanatomical, neuroendocrino- logical, and neurophysiological correlates of major depressive disorder, no laboratory test has yielded results of sufficient sensitivity and specificity to be used as a diagnostic tool for this disorder. Until recently, hypothalamic-pituitary-adrenal axis hyperactivity had been the most extensively investigated abnormality associated with major depressive episodes, and it appears to be associated with melancholia, psychotic features, and risks for eventual suicide. Molecular studies have also implicated peripheral factors, including genetic vari- ants in neurotrophic factors and pro-inflammatory cytokines. Additionally, functional cific neural systems supporting emotion processing, reward seeking, and emotion regula- tion in adults with major depression. Twelve—month prevalence of major depressive disorder in the United States is approximately 7%, with marked differences by age group such that the prevalence in 18- to 29-year-old indi- viduals is threefold higher than the prevalence in individuals age 60 years or older. Females ex- perience 1.5— to 3-fold higher rates than males beginning in early adolescence. Major depressive disorder may first appear at any age, but the likelihood of onset in- creases markedly with puberty. In the United States, incidence appears to peak in the 205; however, first onset in late life is not uncommon. The course of major depressive disorder is quite variable, such that some individuals rarely, if ever, experience remission (a period of 2 or more months with no symptoms, or only one or two symptoms to no more than a mild degree), while others experience many years with few or no symptoms between discrete episodes. It is important to distinguish individuals who present for treatment during an exacerbation of a chronic depressive ill- ness from those whose symptoms developed recently. Chronicity of depressive symptoms substantially increases the likelihood of underlying personality, anxiety, and substance use disorders and decreases the likelihood that treatment will be followed by full symp- tom resolution. It is therefore useful to ask individuals presenting with depressive symp- toms to identify the last period of at least 2 months during which they were entirely free of depressive symptoms. Recovery typically begins within 3 months of onset for two in five individuals with ma- jor depression and within 1 year for four in five individuals. Recency of onset is a strong determinant of the likelihood of near-term recovery, and many individuals who have been depressed only for several months can be expected to recover spontaneously. Features as- sociated with lower recovery rates, other than current episode duration, include psychotic features, prominent anxiety, personality disorders, and symptom severity. The risk of recurrence becomes progessively lower over time as the duration of re- mission increases. The risk is higher in individuals whose preceding episode was severe, in younger individuals, and in individuals who have already experienced multiple epi- sodes. The persistence of even mild depressive symptoms during remission is a powerful predictor of recurrence. Many bipolar illnesses begin with one or more depressive episodes, and a substantial proportion of individuals who initially appear to have major depressive disorder will prove, in time, to instead have a bipolar disorder. This is more likely in individuals with onset of the illness in adolescence, those with psychotic features, and those with a family history of bipolar illness. The presence of a "with mixed features” specifier also increases the risk for future manic or hypomanic diagnosis. Major depressive disorder, particularly with psychotic features, may also transition into schizophrenia, a change that is much more frequent than the reverse. ders, there appear to be no clear differences by gender in phenomenology, course, or treat- ment response. Similarly, there are no clear effects of current age on the course or treatment response of major depressive disorder. Some symptom differences exist, though, such that hypersomnia and hyperphagia are more likely in younger individuals, and melancholic symptoms, particularly psychomotor disturbances, are more common in older individuals. The likelihood of suicide attempts lessens in middle and late life, although the risk of com- pleted suicide does not. Depressions with earlier ages at onset are more familial and more likely to involve personality disturbances. The course of major depressive disorder within individuals does not generally change with aging. Mean times to recovery appear to be sta— ble over long periods, and the likelihood of being in an episode does not generally increase or decrease with time. Temperamental. Neuroticism (negative affectivity) is a well-established risk factor for the onset of major depressive disorder, and high levels appear to render individuals more likely to develop depressive episodes in response to stressful life events. Environmental. Adverse childhood experiences, particularly when there are multiple experiences of diverse types, constitute a set of potent risk factors for major depressive dis- order. Stressful life events are well recognized as precipitants of major depressive epi— sodes, but the presence or absence of adverse life events near the onset of episodes does not appear to provide a useful guide to prognosis or treatment selection. Genetic and physiological. First—degree family members of individuals with major de~ pressive disorder have a risk for major depressive disorder two- to fourfold higher than that of the general population. Relative risks appear to be higher for early-onset and re- current forms. Heritability is approximately 40%, and the personality trait neuroticism ac- counts for a substantial portion of this genetic liability. Course modifiers. Essentially all major nonmood disorders increase the risk of an indi- vidual developing depression. Major depressive episodes that develop against the back- ground of another disorder often follow a more refractory course. Substance use, anxiety, and borderline personality disorders are among the most common of these, and the pre- senting depressive symptoms may obscure and delay their recognition. However, sus- tained clinical improvement in depressive symptoms may depend on the appropriate treatment of underlying illnesses. Chronic or disabling medical conditions also increase risks for major depressive episodes. Such prevalent illnesses as diabetes, morbid obesity, and cardiovascular disease are often complicated by depressive episodes, and these epi- sodes are more likely to become chronic than are depressive episodes in medically healthy individuals. Surveys of major depressive disorder across diverse cultures have shown sevenfold dif- ferences in 12-month prevalence rates but much more consistency in female-to-male ratio, mean ages at onset, and the degree to which presence of the disorder raises the likelihood of comorbid substance abuse. While these findings suggest substantial cultural differences in the expression of major depressive disorder, they do not permit simple linkages be- tween particular cultures and the likelihood of specific symptoms. Rather, clinicians should be aware that in most countries the majority of cases of depression go unrecog- nized in primary care settings and that in many cultures, somatic symptoms are very likely to constitute the presenting complaint. Among the Criterion A symptoms, insomnia and loss of energy are the most uniformly reported. Although the most reproducible finding in the epidemiology of major depressive disorder has been a higher prevalence in females, there are no clear differences between genders in symptoms, course, treatment response, or functional consequences. In women, the risk for suicide attempts is higher, and the risk for suicide completion is lower. The disparity in suicide rate by gender is not as great among those with depressive disorders as it is in the population as a whole. The possibility of suicidal behavior exists at all times during major depressive episodes. The most consistently described risk factor is a past history of suicide attempts or threats, but it should be remembered that most completed suicides are not preceded by unsuccess- ful attempts. Other features associated with an increased risk for completed suicide include male sex, being single or living alone, and having prominent feelings of hopeless- ness. The presence of borderline personality disorder markedly increases risk for future suicide attempts. Many of the functional consequences of major depressive disorder derive from individual symptoms. Impairment can be very mild, such that many of those who interact with the af- fected individual are unaware of depressive symptoms. Impairment may, however, range to complete incapacity such that the depressed individual is unable to attend to basic self- care needs or is mute or catatonic. Among individuals seen in general medical settings, those with major depressive disorder have more pain and physical illness and greater de- creases in physical, social, and role functioning. Manic episodes with irritable mood or mixed episodes. Major depressive episodes with prominent irritable mood may be difficult to distinguish from manic episodes with irritable mood or from mixed episodes. This distinction requires a careful clinical evalua- tion of the presence of manic symptoms. Mood disorder due to another medical condition. A major depressive episode is the appropriate diagnosis if the mood disturbance is not judged, based on individual history, physical examination, and laboratory findings, to be the direct pathophysiological conse- quence of a specific medical condition (e.g., multiple sclerosis, stroke, hypothyroidism). Substance/medication-induced depressive or bipolar disorder. This disorder is distin- guished from major depressive disorder by the fact that a substance (e.g., a drug of abuse, a medication, a toxin) appears to be etiologically related to the mood disturbance. For ex- ample, depressed mood that occurs only in the context of withdrawal from cocaine would be diagnosed as cocaine-induced depressive disorder. Attention-deficit/hyperactivity disorder. Distractibility and low frustration tolerance sode; if the criteria are met for both, attention-deficit/hyperactivity disorder may be diag— nosed in addition to the mood disorder. However, the clinician must be cautious not to overdiagnose a major depressive episode in children with attention-deficit/hyperactivity disorder whose disturbance in mood is characterized by irritability rather than by sadness or loss of interest. Adjustment disorder with depressed mood. A major depressive episode that occurs in response to a psychosocial stressor is distinguished from adjustment disorder with de- pressed mood by the fact that the full criteria for a major depressive episode are not met in adjustment disorder. Sadness. Finally, periods of sadness are inherent aspects of the human experience. These periods should not be diagnosed as a major depressive episode unless criteria are met for severity (i.e., five out of nine symptoms), duration (i.e., most of the day, nearly ev- ery day for at least 2 weeks), and clinically significant distress or impairment. The diagno- sis other specified depressive disorder may be appropriate for presentations of depressed mood with clinically significant impairment that do not meet criteria for duration or se- verity. Other disorders with which major depressive disorder frequently co-occurs are substance— related disorders, panic disorder, obsessive-compulsive disorder, anorexia nervosa, buli- mia nervosa, and borderline personality disorder. Diagnostic Criteria 300.4 (F34.1)This disorder represents a consolidation of DSM-IV-defined chronic major depressive dis- order and dysthymic disorder. A. Depressed mood for most of the day, for more days than not, as indicated by either subjective account or observation by others, for at least 2 years. Note: In children and adolescents, mood can be irritable and duration must be at least 1 year. B. Presence, while depressed, of two (or more) of the following: Poor appetite or overeating.Insomnia or hypersomnia.Low energy or fatigue.Low self-esteem.Poor concentration or difficulty making decisions.Feelings of hopelessness.C. During the 2-year period (1 year for children or adolescents) of the disturbance, the individ- ual has never been without the symptoms in Criteria A and B for more than 2 months at a time. D. Criteria for a major depressive disorder may be continuously present for 2 years. E. There has never been a manic episode or a hypomanic episode. and criteria have never been met for cyclothymic disorder. F. The disturbance is not better explained by a persistent schizoaffective disorder, schizophrenia, delusional disorder, or other specified or unspecified schizophrenia spectrum and other psychotic disorder. G. The symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g. hypothyroidism). H. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Note: Because the criteria for a major depressive episode include four symptoms that are absent from the symptom list for persistent depressive disorder (dysthymia), a very limited number of individuals will have depressive symptoms that have persisted longer than 2 years but will not meet criteria for persistent depressive disorder. If full criteria for a major de— pressive episode have been met at some point during the current episode of illness, they should be given a diagnosis of major depressive disorder. Otherwise, a diagnosis of other specified depressive disorder or unspecified depressive disorder is warranted. Specify it:With anxious distress (p. 184)With mixed features (pp. 184—185)With melancholic features (p. 185)With atypical features (pp. 185—186)With mood-congruent psychotic features (p. 186)With mood-incongruent psychotic features (p. 186)With peripartum onset (pp. 186—187)Specify it:In partial remission (p. 188)In full remission (p. 188)Specify if:Early onset: If onset is before age 21 years.Late onset: If onset is at age 21 years or older. Specify if (for most recent 2 years of persistent depressive disorder): With pure dysthymic syndrome: Full criteria for a major depressive episode have not been met in at least the preceding 2 years. With persistent major depressive episode: Full criteria for a major depressive epi- sode have been met throughout the preceding 2-year period. With intermittent major depressive episodes, with current episode: Full criteria for a major depressive episode are currently met. but there have been periods of at least 8 weeks in at least the preceding 2 years with symptoms below the threshold for a full major depressive episode. With intermittent major depressive episodes, without current episode: Full crite- ria for a major depressive episode are not currently met, but there has been one or more major depressive episodes in at least the preceding 2 years. Specify current severity:Mild (p. 188)Moderate (p. 188)Severe (p. 188)The essential feature of persistent depressive disorder (dysthymia) is a depressed mood that occurs for most of the day, for more days than not, for at least 2 years, or at least 1 year for children and adolescents (Criterion A). This disorder represents a consolidation of DSM-IV-defined chronic major depressive disorder and dysthymic disorder. Major de- pression may precede persistent depressive disorder, and major depressive episodes may occur during persistent depressive disorder. Individuals whose symptoms meet major de- pressive disorder criteria for 2 years should be given a diagnosis of persistent depressive disorder as well as major depressive disorder. Individuals with persistent depressive disorder describe their mood as sad or "down in the dumps.” During periods of depressed mood, at least two of the six symptoms from Criterion B are present. Because these symptoms have become a part of the individual’s day-to-day experience, particularly in the case of early onset (e.g., "I’ve always been this way”), they may not be reported unless the individual is directly prompted. During the 2-year period (1 year for children or adolescents), any symptom-free intervals last no longer than 2 months (Criterion C). Persistent depressive disorder is effectively an amalgam of DSM-IV dysthymic disorder and chronic major depressive episode. The 12—month prevalence in the United States is approxi- mately 0.5% for persistent depressive disorder and 1.5% for chronic major depressive disorder. Persistent depressive disorder often has an early and insidious onset (i.e., in childhood, adolescence, or early adult life) and, by definition, a chronic course. Among individuals with both persistent depressive disorder and borderline personality disorder, the covari- ance of the corresponding features over time suggests the operation of a common mecha- nism. Early onset (i.e., before age 21 years) is associated with a higher likelihood of comorbid personality disorders and substance use disorders. When symptoms rise to the level of a major depressive episode, they are likely to sub- sequently revert to a lower level. However, depressive symptoms are much less likely to resolve in a given period of time in the context of persistent depressive disorder than they are in a major depressive episode. Temperamental. Factors predictive of poorer long—term outcome include higher levels of neuroticism (negative affectivity), greater symptom severity, poorer global functioning, and presence of anxiety disorders or conduct disorder. Environmental. Childhood risk factors include parental loss or separation.Genetic and physiological. There are no clear differences in illness development, course, order. Earlier findings pertaining to either disorder are therefore likely to apply to per- sistent depressive disorder. It is thus likely that individuals with persistent depressive disorder will have a higher proportion of first-degree relatives with persistent depressive disorder than do individuals with major depressive disorder, and more depressive disor- ders in general. A number of brain regions (e.g., prefrontal cortex, anterior cingulate, amygdala, hip- pocampus) have been implicated in persistent depressive disorder. Possible polysomno— graphic abnormalities exist as well. The degree to which persistent depressive disorder impacts social and occupational func- tioning is likely to vary widely, but effects can be as great as or greater than those of major depressive disorder. Major depressive disorder. If there is a depressed mood plus two or more symptoms meeting criteria for a persistent depressive episode for 2 years or more, then the diagnosis of persistent depressive disorder is made. The diagnosis depends on the 2—year duration, which distinguishes it from episodes of depression that do not last 2 years. If the symptom criteria are sufficient for a diagnosis of a major depressive episode at any time during this pe- riod, then the diagnosis of major depression should be noted, but it is coded not as a separate diagnosis but rather as a specifier with the diagnosis of persistent depressive disorder. If the individual’s symptoms currently meet full criteria for a major depressive episode, then the specifier of "with intermittent major depressive episodes, with current episode” would be made. If the major depressive episode has persisted for at least a 2—year duration and re— mains present, then the specifier ”with persistent major depressive episode” is used. When full major depressive episode criteria are not currently met but there has been at least one previous episode of major depression in the context of at least 2 years of persistent depres- sive symptoms, then the specifier of ”with intermittent major depressive episodes, without current episode" is used. If the individual has not experienced an episode of major depres- sion in the last 2 years, then the specifier "with pure dysthymic syndrome" is used. Psychotic disorders. Depressive symptoms are a common associated feature of chronic psychotic disorders (e.g., schizoaffective disorder, schizophrenia, delusional disorder). A separate diagnosis of persistent depressive disorder is not made if the symptoms occur only during the course of the psychotic disorder (including residual phases). Depressive or bipolar and related disorder due to another medical condition. Persistent order due to another medical condition. The diagnosis is depressive or bipolar and related disorder due to another medical condition if the mood disturbance is judged, based on his- tory, physical examination, or laboratory findings, to be attributable to the direct patho- physiological effects of a specific, usually chronic, medical condition (e.g., multiple sclerosis). If it is judged that the depressive symptoms are not attributable to the physiolog- ical effects of another medical condition, then the primary mental disorder (e.g., persistent depressive disorder) is recorded, and the medical condition is noted as a concomitant med- ical condition (e.g., diabetes mellitus). Substance/medication-induced depressive or bipolar disorder. A substance/medi— cation-induced depressive or bipolar and related disorder is distinguished from persis- tent depressive disorder when a substance (e.g., a drug of abuse, a medication, a toxin) is judged to be etiologically related to the mood disturbance. Personality disorders. Often, there is evidence of a coexisting personality disturbance. When an individual’s presentation meets the criteria for both persistent depressive disor- der and a personality disorder, both diagnoses are given. In comparison to individuals with major depressive disorder, those with persistent de- pressive disorder are at higher risk for psychiatric comorbidity in general, and for anxiety disorders and substance use disorders in particular. Early-onset persistent depressive dis- order is strongly associated with DSM-IV Cluster B and C personality disorders. Diagnostic Criteria 625.4 (N94.3)A. In the majority of menstrual cycles. at least five symptoms must be present in the final week before the onset of menses, start to improve within a few days after the onset of menses, and become minimal or absent in the week postmenses. B. One (or more) of the following symptoms must be present: 1. Marked affective lability (e.g., mood swings; feeling suddenly sad or tearful, or in- creased sensitivity to rejection). 2. Marked irritability or anger or increased interpersonal conflicts.3. Marked depressed mood, feelings of hopelessness, or seIf-deprecating thoughts. 4. Marked anxiety, tension, and/or feelings of being keyed up or on edge. C. One (or more) of the following symptoms must additionally be present, to reach a total of five symptoms when combined with symptoms from Criterion B above. . Decreased interest in usual activities (e.g., work, school, friends, hobbies). . Subjective difficulty in concentration.. Lethargy, easy fatigability, or marked lack of energy.. Marked change in appetite; overeating; or specific food cravings. . Hypersomnia or insomnia.. A sense of being overwhelmed or out of control. . Physical symptoms such as breast tenderness or swelling, joint or muscle pain, a sensation of “bloating,” or weight gain. Note: The symptoms in Criteria A—C must have been met for most menstrual cycles that occurred in the preceding year. D. The symptoms are associated with clinically significant distress or interference with work, school, usual social activities, or relationships with others (e.g., avoidance of so- cial activities; decreased productivity and efficiency at work, school, or home). E. The disturbance is not merely an exacerbation of the symptoms of another disorder, such as major depressive disorder, panic disorder, persistent depressive disorder (dysthymia), or a personality disorder (although it may co-occur with any of these dis- orders). F. Criterion A should be confirmed by prospective daily ratings during at least two symptom- atic cycles. (Note: The diagnosis may be made provisionally prior to this confirmation.) G. The symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication, other treatment) or another medical condition (e.g., hy- perthyroidism). If symptoms have not been confirmed by prospective daily ratings of at least two symp- tomatic cycles, "provisional" should be noted after the name of the diagnosis (i.e., "pre- menstrual dysphoric disorder, provisional"). The essential features of premenstrual dysphoric disorder are the expression of mood la- bility, irritability, dysphoria, and anxiety symptoms that occur repeatedly during the pre- menstrual phase of the cycle and remit around the onset of menses or shortly thereafter. These symptoms may be accompanied by behavioral and physical symptoms. Symptoms must have occurred in most of the menstrual cycles during the past year and must have an adverse effect on work or social functioning. The intensity and / or expressivity of the ac- companying symptoms may be closely related to social and cultural background charac- teristics of the affected female, family perspectives, and more specific factors such as religious beliefs, social tolerance, and female gender role issues. Typically, symptoms peak around the time of the onset of menses. Although it is not uncommon for symptoms to linger into the first few days of menses, the individual must have a symptom-free period in the follicular phase after the menstrual period begins. While the core symptoms include mood and anxiety symptoms, behavioral and somatic symptoms commonly also occur. However, the presence of physical and/ or behavioral symptoms in the absence of mood and/ or anxious symptoms is not sufficient for a diag- nosis. Symptoms are of comparable severity (but not duration) to those of another mental disorder, such as a major depressive episode or generalized anxiety disorder. In order to confirm a provisional diagnosis, daily prospective symptom ratings are required for at least two symptomatic cycles. Delusions and hallucinations have been described in the late luteal phase of the menstrual cycle but are rare. The premenstrual phase has been considered by some to be a risk period for suicide. Twelve-month prevalence of premenstrual dysphoric disorder is between 1.8% and 5.8% of menstruating women. Estimates are substantially inflated if they are based on retro- spective reports rather than prospective daily ratings. However, estimated prevalence based on a daily record of symptoms for 1—2 months may be less representative, as indi- viduals with the most severe symptoms may be unable to sustain the rating process. The most rigorous estimate of premenstrual dysphoric disorder is 1.8% for women whose symptoms meet the full criteria without functional impairment and 1.3% for women whose symptoms meet the current criteria with functional impairment and without co-oc- curring symptoms from another mental disorder. Onset of premenstrual dysphoric disorder can occur at any point after menarche. Inci- dence of new cases over a 40-month follow-up period is 2.5% (95% confidence interval = 1.7—3.7). Anecdotally, many individuals, as they approach menopause, report that symp- toms worsen. Symptoms cease after menopause, although cyclical hormone replacement can trigger the re-expression of symptoms. Environmental. Environmental factors associated with the expression of premenstrual dysphoric disorder include stress, history of interpersonal trauma, seasonal changes, and sociocultural aspects of female sexual behavior in general, and female gender role in par- ticular. Genetic and physiological. Heritability of premenstrual dysphoric disorder is unknown. However, for premenstrual symptoms, estimates for heritability range between 30% and 80%, with the most stable component of premenstrual symptoms estimated to be about 50% heritable. Course modifiers. Women who use oral contraceptives may have fewer premenstrual complaints than do women who do not use oral contraceptives. Premenstrual dysphoric disorder is not a culture-bound syndrome and has been observed in individuals in the United States, Europe, India, and Asia. It is unclear as to whether rates differ by race. Nevertheless, frequency, intensity, and expressivity of symptoms and help- seeking patterns may be significantly influenced by cultural factors. As indicated earlier, the diagnosis of premenstrual dysphoric disorder is appropriately confirmed by 2 months of prospective symptom ratings. A number of scales, including the Daily Rating of Severity of Problems and the Visual Analogue Scales for Premenstrual Mood Symptoms, have undergone validation and are commonly used in clinical trials for premenstrual dysphoric disorder. The Premenstrual Tension Syndrome Rating Scale has a self—report and an observer version, both of which have been validated and used widely to measure illness severity in women who have premenstrual dysphoric disorder. Symptoms must be associated with clinically meaningful distress and/ or an obvious and marked impairment in the ability to function socially or occupationally in the week prior to menses. Impairment in social functioning may be manifested by marital discord and problems with children, other family members, or friends. Chronic marital or job prob- lems should not be confused with dysfunction that occurs only in association with pre- menstrual dysphoric disorder. Premenstrual syndrome. Premenstrual syndrome differs from premenstrual dysphoric disorder in that a minimum of five symptoms is not required, and there is no stipulation of affective symptoms for individuals who have premenstrual syndrome. This condition may be more common than premenstrual dysphoric disorder, although the estimated prevalence of premenstrual syndrome varies. While premenstrual syndrome shares the feature of symptom expression during the premenstrual phase of the menstrual cycle, it is generally considered to be less severe than premenstrual dysphoric disorder. The pres- ence of physical or behavioral symptoms in the premenstruum, without the required affective symptoms, likely meets criteria for premenstrual syndrome and not for premen- strual dysphoric disorder. Dysmenorrhea. Dysmenorrhea is a syndrome of painful menses, but this is distinct from a syndrome characterized by affective changes. Moreover, symptoms of dysmenorrhea begin with the onset of menses, whereas symptoms of premenstrual dysphoric disorder, by defini- tion, begin before the onset of menses, even if they linger into the first few days of menses. Bipolar disorder, major depressive disorder, and persistent depressive disorder (dysthymia). Many women with (either naturally occurring or substance/ medication- that they have premenstrual dysphoric disorder. However, when they chart symptoms, they realize that the symptoms do not follow a premenstrual pattern. Women with an- are unrelated to menstrual cycle phase. However, because the onset of menses constitutes a memorable event, they may report that symptoms occur only during the premenstruum or that symptoms worsen premenstrually. This is one of the rationales for the requirement that symptoms be confirmed by daily prospective ratings. The process of differential di- agnosis, particularly if the clinician relies on retrospective symptoms only, is made more difficult because of the overlap between symptoms of premenstrual dysphoric disorder and some other diagnoses. The overlap of symptoms is particularly salient for differenti- ating premenstrual dysphoric disorder from major depressive episodes, persistent de- pressive disorder, bipolar disorders, and borderline personality disorder. However, the rate of personality disorders is no higher in individuals with premenstrual dysphoric dis- order than in those without the disorder. Use of hormonal treatments. Some women who present with moderate to severe pre- menstrual symptoms may be using hormonal treatments, including hormonal contracep- tives. If such symptoms occur after initiation of exogenous hormone use, the symptoms may be due to the use of hormones rather than to the underlying condition of premen- strual dysphoric disorder. If the woman stops hormones and the symptoms disappear, this is consistent with substance/medication-induced depressive disorder. A major depressive episode is the most frequently reported previous disorder in individuals presenting with premenstrual dysphoric disorder. A wide range of medical (e.g., migraine, asthma, allergies, seizure disorders) or other mental disorders (e.g., depressive and bipolar disorders, anxiety disorders, bulimia nervosa, substance use disorders) may worsen in the premenstrual phase; however, the absence of a symptom-free period during the postmen- strual interval obviates a diagnosis of premenstrual dysphoric disorder. These conditions are better considered premenstrual exacerbation of a current mental or medical disorder. Al- though the diagnosis of premenstrual dysphoric disorder should not be assigned in situa— tions in which an individual only experiences a premenstrual exacerbation of another mental or physical disorder, it can be considered in addition to the diagnosis of another men- tal or physical disorder if the individual experiences symptoms and changes in level of func- tioning that are characteristic of premenstrual dysphoric disorder and markedly different from the symptoms experienced as part of the ongoing disorder. A. A prominent and persistent disturbance in mood that predominates in the clinical pic- ture and is characterized by depressed mood or markedly diminished interest or plea- sure in all, or almost all, activities. B. There is evidence from the history, physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or withdrawal or after exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by a depressive disorder that is not substance/ medication-induced. Such evidence of an independent depressive disorder could in- clude the following: The symptoms preceded the onset of the substance/medication use; the symptoms persist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence suggesting the existence of an independent non-substance/medication-induced depressive disorder (e.g., a his- tory of recurrent non-substance/medication-related episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Note: This diagnosis should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and when they are sufficiently severe to warrant clinical attention. Coding note: The |CD-9-CM and |CD-10-CM codes for the [specific substance/medica- tion]-induced depressive disorders are indicated in the table below. Note that the |CD-10- CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the substance- induced depressive disorder, the 4th position character is “1 and the clinician should record “mild [substance] use disordef’ before the substance-induced depressive disorder (e.g., “mild cocaine use disorder with cocaine-induced depressive disorder”). It a moderate or se- vere substance use disorder is comorbid with the substance-induced depressive disorder, the 4th position character is “,"2 and the clinician should record “moderate [substance] use disorder” or “severe [substance] use disorder," depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one- time heavy use of the substance), then the 4th position character is “9," and the clinician should record only the substance-induced depressive disorder. With use disorder, Without disorder, moderate useAlcohol 291.89 F1014 F1024 F10.94Phencyclidine 292.84 F1614 F1624 F1694Other hallucinogen 292.84 F1614 F1624 F1694Inhalant 292.84 F1814 F1824 F1894Opioid 292.84 F11.14 F1124 F1194Sedative, hypnotic, or anxiolytic 292.84 F13.14 F1324 F1394Amphetamine (or other 292.84 F1514 F1524 F1594Cocaine 292.84 F14.14 F1424 F1494Other (or unknown) substance 292.84 F1914 F1924 F1994Specify it (see Table 1 in the chapter “Substance-Related and Addictive Disorders" tor di- agnoses associated with substance class): With onset during intoxication: If criteria are met for intoxication with the substance and the symptoms develop during intoxication. With onset during withdrawal: If criteria are met for withdrawal from the substance and the symptoms develop during, or shortly after, withdrawal. lCD-9-CM. The name of the substance/medication-induced depressive disorder begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the depressive symptoms. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., dexamethasone), the code for "other substance" should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category ”unknown substance” should be used. The name of the disorder is followed by the specification of onset (i.e., onset during in- toxication, onset during withdrawal). Unlike the recording procedures for ICD-lO-CM, which combine the substance-induced disorder and substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of depressive symptoms occurring during withdrawal in a man with a severe cocaine use disorder, the diagnosis is 292.84 cocaine-induced depressive disorder, with onset during withdrawal. An additional diagnosis of 304.20 severe cocaine use dis- order is also given. When more than one substance is judged to play a significant role in the development of depressive mood symptoms, each should be listed separately (e.g., 292.84 methylphenidate-induced depressive disorder, with onset during withdrawal; 292.84 dexamethasone-induced depressive disorder, with onset during intoxication). |CD-10-CM. The name of the substance/medication-induced depressive disorder begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the depressive symptoms. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class and presence or absence of a comorbid sub- stance use disorder. For substances that do not fit into any of the classes (e.g., dexameth- asone), the code for “other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category ”unknown substance” should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word ”with," followed by the name of the substance-induced de- pressive disorder, followed by the specification of onset (i.e., onset during intoxication, onset during withdrawal). For example, in the case of depressive symptoms occurring during with- drawal in a man with a severe cocaine use disorder, the diagnosis is F1424 severe cocaine use disorder with cocaine-induced depressive disorder, with onset during withdrawal. A separate diagnosis of the comorbid severe cocaine use disorder is not given. If the substance-induced depressive disorder occurs without a comorbid substance use disorder (e.g., after a one—time heavy use of the substance), no accompanying substance use disorder is noted (e.g., F1694 phencyclidine-induced depressive disorder, with onset during intoxication). When more than one substance is judged to play a significant role in the development of depressive mood symptoms, each should be listed separately (e.g., F1524 severe methylphenidate use disorder with methylphenidate-induced depressive disorder, with onset during withdrawal; F1994 dexamethasone-induced depressive disorder, with onset during intoxication). The diagnostic features of substance/medication-induced depressive disorder include the symptoms of a depressive disorder, such as major depressive disorder; however, the de- pressive symptoms are associated with the ingestion, injection, or inhalation of a sub- stance (e.g., drug of abuse, toxin, psychotropic medication, other medication), and the depressive symptoms persist beyond the expected length of physiological effects, intoxi- cation, or withdrawal period. As evidenced by clinical history, physical examination, or laboratory findings, the relevant depressive disorder should have developed during or within 1 month after use of a substance that is capable of producing the depressive disor- der (Criterion B1). In addition, the diagnosis is not better explained by an independent depressive disorder. Evidence of an independent depressive disorder includes the de- pressive disorder preceded the onset of ingestion or withdrawal from the substance; the depressive disorder persists beyond a substantial period of time after the cessation of sub- stance use; or other evidence suggests the existence of an independent non-substance/ medication-induced depressive disorder (Criterion C). This diagnosis should not be made when symptoms occur exclusively during the course of a delirium (Criterion D). The de- pressive disorder associated with the substance use, intoxication, or withdrawal must cause clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning to qualify for this diagnosis (Criterion E). Some medications (e.g., stimulants, steroids, L-dopa, antibiotics, central nervous system drugs, dermatological agents, chemotherapeutic drugs, immunological agents) can induce depressive mood disturbances. Clinical judgment is essential to determine whether the medication is truly associated with inducing the depressive disorder or whether a primary depressive disorder happened to have its onset while the person was receiving the treatment. For example, a depressive episode that developed within the first several weeks of beginning alpha—methyldopa (an antihypertensive agent) in an individ- ual with no history of major depressive disorder would qualify for the diagnosis of med- ication-induced depressive disorder. In some cases, a previously established condition (e.g., major depressive disorder, recurrent) can recur while the individual is coincidentally taking a medication that has the capacity to cause depressive symptoms (e.g., L-dopa, oral contraceptives). In such cases, the clinician must make a judgment as to whether the med- ication is causative in this particular situation. A substance/medication-induced depressive disorder is distinguished from a primary depressive disorder by considering the onset, course, and other factors associated with the substance use. There must be evidence from the history, physical examination, or labora— tory findings of substance use, abuse, intoxication, or withdrawal prior to the onset of the depressive disorder. The withdrawal state for some substances can be relatively pro- tracted, and thus intense depressive symptoms can last for a long period after the cessation of substance use. In a nationally representative U.S. adult population, the lifetime prevalence of substance/ medication-induced depressive disorder is 0.26%. A depressive disorder associated with the use of substance (i.e., alcohol, illicit drugs, or a set while the individual is using the substance or during withdrawal, if there is a with— drawal syndrome associated with the substance. Most often, the depressive disorder has its onset within the first few weeks or 1 month of use of the substance. Once the substance is discontinued, the depressive symptoms usually remit within days to several weeks, de- pending on the half—life of the substance/medication and the presence of a withdrawal syndrome. If symptoms persist 4 weeks beyond the expected time course of withdrawal of a particular substance/medication, other causes for the depressive mood symptoms should be considered. Although there are a few prospective controlled trials examining the association of de— pressive symptoms with use of a medication, most reports are from postmarketing sur- veillance studies, retrospective observational studies, or case reports, making evidence of causality difficult to determine. Substances implicated in medication-induced depressive disorder, with varying degrees of evidence, include antiviral agents (efavirenz), cardio- vascular agents (clonidine, guanethidine, methyldopa, reserpine), retinoic acid deriva- tives (isotretinoin), antidepressants, anticonvulsants, anti-migraine agents (triptans), antipsychotics, hormonal agents (corticosteroids, oral contraceptives, gonadotropin- releasing hormone agonists, tamoxifen), smoking cessation agents (varenicline), and im- munological agents (interferon). However, other potential substances continue to emerge as new compounds are synthesized. A history of such substance use may help increase di- agnostic certainty. Temperamental. Factors that appear to increase the risk of substance/medication- induced depressive disorder can be conceptualized as pertaining to the specific type of drug or to a group of individuals with underlying alcohol or drug use disorders. Risk fac- tors common to all drugs include history of major depressive disorder, history of drug- induced depression, and psychosocial stressors. Environmental. There are also risks factors pertaining to a specific type of medication (e.g., increased immune activation prior to treatment for hepatitis C associated with inter- lents) of corticosteroids or high plasma concentrations of efavirenz; and high estrogen/ progesterone content in oral contraceptives. Course modifiers. In a representative US. adult population, compared with individuals with major depressive disorder who did not have a substance use disorder, individuals with substance-induced depressive disorder were more likely to be male, to be black, to have at most a high school diploma, to lack insurance, and to have lower family income. They were also more likely to report higher family history of substance use disorders and antisocial behavior, higher 12-month history of stressful life events, and a greater number of DSM-IV major depressive disorder criteria. They were more likely to report feelings of worthlessness, insomnia/hypersomnia, and thoughts of death and suicide attempts, but less likely to report depressed mood and parental loss by death before age 18 years. Determination of the substance of use can sometimes be made through laboratory assays of the suspected substance in the blood or urine to corroborate the diagnosis. and behavior from the person’s baseline, is usually temporally associated with initiation of a substance, and must be distinguished from the underlying primary mental disorders. In regard to the treatment-emergent suicidality associated with antidepressants, a US. 99,839 participants enrolled in 372 randomized clinical trials of antidepressants in trials for mental disorders. The analyses showed that when the data were pooled across all adult age groups, there was no perceptible increased risk of suicidal behavior or ideation. How- ever, in age-stratified analyses, the risk for patients ages 18—24 years was elevated, albeit not significantly (odds ratio [OR] = 1.55; 95% confidence interval [CI] = 0.91—2.70). The FDA meta-analyses reveal an absolute risk of suicide in patients taking investigational an- tidepressants of 0.01%. In conclusion, suicide is clearly an extremely rare treatment-emer- gent phenomenon, but the outcome of suicide was serious enough to prompt the FDA to issue an expanded black-box warning in 2007 regarding the importance of careful moni- toring of treatment-emergent suicidal ideation in patients receiving antidepressants. Substance intoxication and withdrawal. Depressive symptoms occur commonly in sub- stance intoxication and substance withdrawal, and the diagnosis of the substance-specific intoxication or withdrawal will usually suffice to categorize the symptom presentation. A diagnosis of substance-induced depressive disorder should be made instead of a diag- nosis of substance intoxication or substance withdrawal when the mood symptoms are sufficiently severe to warrant independent clinical attention. For example, dysphoric mood is a characteristic feature of cocaine withdrawal. Substance/ medication-induced depressive disorder should be diagnosed instead of cocaine withdrawal only if the mood disturbance is substantially more intense or longer lasting than what is usually encountered with cocaine withdrawal and is sufficiently severe to be a separate focus of attention and treatment. Primary depressive disorder. A substance/medication-induced depressive disorder is distinguished from a primary depressive disorder by the fact that a substance is judged to be etiologically related to the symptoms, as described earlier (see section "Development and Course” for this disorder). Depressive disorder due to another medical condition. Because individuals with other medical conditions often take medications for those conditions, the clinician must consider the possibility that the mood symptoms are caused by the physiological consequences of the med- ical condition rather than the medication, in which case depressive disorder due to another medical condition is diagnosed. The history often provides the primary basis for such a judg- ment. At times, a change in the treatment for the other medical condition (e.g., medication sub- stitution or discontinuation) may be needed to determine empirically whether the medication is the causative agent. If the clinician has ascertained that the disturbance is a function of both another medical condition and substance use or withdrawal, both diagnoses (i.e., depressive disorder due to another medical condition and substance/ medication-induced depressive disorder) may be given. When there is insufficient evidence to determine Whether the depres- sive symptoms are associated with substance (including a medication) ingestion or with- drawal or with another medical condition or are primary (i.e., not a function of either a substance or another medical condition), a diagnosis of other specified depressive disorder or unspecified depressive disorder would be indicated. Compared with individuals with major depressive disorder and no comorbid substance use disorder, those with substance/medication-induced depressive disorder have higher rates of comorbidity with any DSM-IV mental disorder; are more likely to have specific DSM-IV disorders of pathological gambling and paranoid, histrionic, and antisocial per- sonality disorders; and are less likely to have persistent depressive disorder (dysthymia). Compared with individuals with major depressive disorder and a comorbid substance use disorder, individuals with substance/medication-induced depressive disorder are more likely to have alcohol use disorder, any other substance use disorder, and histrionic per- sonality disorder; however, they are less likely to have persistent depressive disorder. Due to Another Medical ConditionA. A prominent and persistent period of depressed mood or markedly diminished interest or pleasure in all, or almost all, activities that predominates in the clinical picture. 8. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct pathophysiological consequence of another medical condi- tion. C. The disturbance is not better explained by another mental disorder (e.g., adjustment disorder, with depressed mood, in which the stressor is a serious medical condition). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Coding note: The |CD-9-CM code for depressive disorder due to another medical condi- tion is 293.83, which is assigned regardless of the specifier. The ICD-10-CM code de- pends on the specifier (see below). Depressive Disorder Due to Another Medical Condition 181Specify if: (F06.31) With depressive features: Full criteria are not met for a major depressive episode. ‘ (F06.32) With major depressive—llke episode: FuII criteria are met (except Criterion C) for a major depressive episode.(F06.34) With mixed features: Symptoms of mania or hypomania are also present but do not predominate in the clinical picture. Coding note: Include the name of the other medical condition in the name of the mental dis- order (e.g., 293.83 [F0631] depressive disorder due to hypothyroidism, with depressive fea- tures). The other medical condition should also be coded and listed separately immediately before the depressive disorder due to the medical condition (e.g., 244.9 [E039] hypothyroid- ism; 293.83 [F0631] depressive disorder due to hypothyroidism, with depressive features). The essential feature of depressive disorder due to another medical condition is a promi- nent and persistent period of depressed mood or markedly diminished interest or plea- sure in all, or almost all, activities that predominates in the clinical picture (Criterion A) and that is thought to be related to the direct physiological effects of another medical con- dition (Criterion B). In determining whether the mood disturbance is due to a general medical condition, the clinician must first establish the presence of a general medical con— dition. Further, the clinician must establish that the mood disturbance is etiologically re- lated to the general medical condition through a physiological mechanism. A careful and comprehensive assessment of multiple factors is necessary to make this judgment. Al- though there are no infallible guidelines for determining whether the relationship between the mood disturbance and the general medical condition is etiological, several considerations provide some guidance in this area. One consideration is the presence of a temporal association between the onset, exacerbation, or remission of the general medical condition and that of the mood disturbance. A second consideration is the presence of fea— tures that are atypical of primary Mood Disorders (e.g., atypical age at onset or course or absence of family history). Evidence from the literature that suggests that there can be a di- rect association between the general medical condition in question and the development of mood symptoms can provide a useful context in the assessment of a particular situation. Etiology (i.e., a causal relationship to another medical condition based on best clinical ev- idence) is the key variable in depressive disorder due to another medical condition. The listing of the medical conditions that are said to be able to induce major depression is never complete, and the clinician’s best judgment is the essence of this diagnosis. There are clear associations, as well as some neuroanatomical correlates, of depression with stroke, Huntington’s disease, Parkinson’s disease, and traumatic brain injury. Among the neuroendocrine conditions most closely associated with depression are Cushing’s dis- ease and hypothyroidism. There are numerous other conditions thought to be associated with depression, such as multiple sclerosis. However, the literature’s support for a causal association is greater with some conditions, such as Parkinson’s disease and Huntington’s disease, than with others, for which the differential diagnosis may be adjustment disorder, with depressed mood. Following stroke, the onset of depression appears to be very acute, occurring within 1 day or a few days of the cerebrovascular accident (CVA) in the largest case series. However, in some cases, onset of the depression is weeks to months following the CVA. In the largest series, the duration of the major depressive episode following stroke was 9—11 months on average. Similarly, in Huntington’s disease the depressive state comes quite early in the course of the illness. With Parkinson’s disease and Huntington’s disease, it often precedes the major motor impairments and cognitive impairments associated with each condition. This is more prominently the case for Huntington’s disease, in which depression is con- sidered to be the first neuropsychiatric symptom. There is some observational evidence that depression is less common as the dementia of Huntington’s disease progresses. The risk of acute onset of a major depressive disorder following a CVA (within 1 day to a week of the event) appears to be strongly correlated with lesion location, with greatest risk associated with left frontal strokes and least risk apparently associated with right frontal lesions in those individuals who present within days of the stroke. The association with frontal regions and laterality is not observed in depressive states that occur in the 2—6 months following stroke. Gender differences pertain to those associated with the medical condition (e.g., systemic lupus erythematosus is more common in females; stroke is somewhat more common in middle-age males compared with females). Diagnostic markers pertain to those associated with the medical condition (e.g., steroid levels in blood or urine to help corroborate the diagnosis of Cushing’s disease, which can be associated with manic or depressive syndromes). There are no epidemiological studies that provide evidence to differentiate the risk of sui- cide from a major depressive episode due to another medical condition compared with the risk from a major depressive episode in general. There are case reports of suicides in association with major depressive episodes associated with another medical condition. There is a clear association between serious medical illnesses and suicide, particularly shortly after onset or diagnosis of the illness. Thus, it would be prudent to assume that the risk of suicide for major depressive episodes associated with medical conditions is not less than that for other forms of major depressive episode, and might even be greater. Functional Consequences of Depressive DisorderDue to Another Medical ConditionFunctional consequences pertain to those associated with the medical condition. In gen- eral, it is believed, but not established, that a major depressive episode induced by Cush- ing’s disease will not recur if the Cushing’s disease is cured or arrested. However, it is also suggested, but not established, that mood syndromes, including depressive and manic/ hypomanic ones, may be episodic (i.e., recurring) in some individuals with static brain in- juries and other central nervous system diseases. Depressive disorders not due to another medical condition. Determination of whether a medical condition accompanying a depressive disorder is causing the disorder depends on a) the absence of an episode(s) of depressive episodes prior to the onset of the medical condition, b) the probability that the associated medical condition has a potential to pro- mote or cause a depressive disorder, and c) a course of the depressive symptoms shortly after the onset or worsening of the medical condition, especially if the depressive symp- toms remit near the time that the medical disorder is effectively treated or remits. Medication-induced depressive disorder. An important caveat is that some medical con- ditions are treated with medications (e.g., steroids or alpha-interferon) that can induce depres- sive or manic symptoms. In these cases, clinical judgment, based on all the evidence in hand, is the best way to try to separate the most likely and/ or the most important of two etiological fac- tors (i.e., association with the medical condition vs. a substance-induced syndrome). Adjustment disorders. It is important to differentiate a depressive episode from an ad- justment disorder, as the onset of the medical condition is in itself a life stressor that could bring on either an adjustment disorder or an episode of major depression. The major dif- ferentiating elements are the pervasiveness the depressive picture and the number and quality of the depressive symptoms that the patient reports or demonstrates on the mental status examination. The differential diagnosis of the associated medical conditions is rel- evant but largely beyond the scope of the present manual. Conditions comorbid with depressive disorder due to another medical condition are those associated with the medical conditions of etiological relevance. It has been noted that de- lirium can occur before or along with depressive symptoms in individuals with a variety of medical conditions, such as Cushing’s disease. The association of anxiety symptoms, usually generalized symptoms, is common in depressive disorders, regardless of cause. 311 (F32.8)This category applies to presentations in which symptoms characteristic of a depressive disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the depressive disorders diagnostic class. The other specified depressive disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific depressive disorder. This is done by recording “other specified depressive disordef‘ followed by the specific reason (e.g., “short-duration depressive episode"). Examples of presentations that can be specified using the “other specified" designation include the following: 1. Recurrent brief depression: Concurrent presence of depressed mood and at least four other symptoms of depression for 2—13 days at least once per month (not associ- ated with the menstrual cycle) for at least 12 consecutive months in an individual and does not currently meet active or residual criteria for any psychotic disorder. 2. Short-duration depressive episode (4—13 days): Depressed affect and at least four of the other eight symptoms of a major depressive episode associated with clinically significant distress or impairment that persists for more than 4 days, but less than 14 days, bipolar disorder, does not currently meet active or residual criteria for any psychotic dis- order, and does not meet criteria for recurrent brief depression. 3. Depressive episode with insufficient symptoms: Depressed affect and at least one of the other eight symptoms of a major depressive episode associated with clinically whose presentation has never met criteria for any other depressive or bipolar disorder, does not currently meet active or residual criteria for any psychotic disorder, and does not meet criteria for mixed anxiety and depressive disorder symptoms. 311 (F32.9)This category applies to presentations in which symptoms characteristic of a depressive dis- order that cause clinically significant distress or impairment in social, occupational, or other im- portant areas of functioning predominate but do not meet the full criteria for any of the disorders in the depressive disorders diagnostic class. The unspecified depressive disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific depressive disorder, and includes presentations for which there is insut— ficient information to make a more specific diagnosis (e.g., in emergency room settings). Specify it:With anxious distress: Anxious distress is defined as the presence of at least two of the following symptoms during the majority of days of a major depressive episode or persistent depressive disorder (dysthymia): 1. Feeling keyed up or tense. 2. Feeling unusually restless.3. Difficulty concentrating because of worry.4. Fear that something awful may happen.5. Feeling that the individual might lose control of himself or herself. Specify current severity:Mild: Two symptoms.Moderate: Three symptoms.Moderate-severe: Four or five symptoms.Severe: Four or five symptoms and with motor agitation.Note: Anxious distress has been noted as a prominent feature of both bipolar and ma- jor depressive disorder in both primary care and specialty mental health settings. High levels of anxiety have been associated with higher suicide risk, longer duration of ill- ness, and greater likelihood of treatment nonresponse. As a result, it is clinically useful to specify accurately the presence and severity levels of anxious distress for treatment planning and monitoring of response to treatment. With mixed features:A. At least three of the following manic/hypomanic symptoms are present nearly every day during the majority of days of a major depressive episode: 1. Elevated, expansive mood. Inflated self-esteem or grandiosity.More talkative than usual or pressure to keep talking.Flight of ideas or subjective experience that thoughts are racing. Increase in energy or goal-directed activity (either socially, at work or school. or sexually). 6. Increased or excessive involvement in activities that have a high potential for painful consequences (e.g., engaging in unrestrained buying sprees. sexual in- discretions, foolish business investments). 7. Decreased need for sleep (feeling rested despite sleeping less than usual; to be contrasted with insomnia). B. Mixed symptoms are observable by others and represent a change from the per- son’s usual behavior. C. For individuals whose symptoms meet full criteria for either mania or hypomania, the diagnosis should be bipolar | or bipolar II disorder. D. The mixed symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication or other treatment). Note: Mixed features associated with a major depressive episode have been found to be a significant risk factor for the development of bipolar I or bipolar II disorder. As a result, it is clinically useful to note the presence of this specifier for treatment planning and monitoring of response to treatment. With melancholic features:A. One of the following is present during the most severe period of the current epi- sode: 1. Loss of pleasure in all, or almost all, activities. 2. Lack of reactivity to usually pleasurable stimuli (does not feel much better, even temporarily, when something good happens). B. Three (or more) of the following: 1. A distinct quality of depressed mood characterized by profound despondency, despair, and/or moroseness or by so-called empty mood. Depression that is regularly worse in the morning.EarIy-morning awakening (i.e., at least 2 hours before usual awakening). Marked psychomotor agitation or retardation.Significant anorexia or weight loss.6. Excessive or inappropriate guilt.Note: The specifier “with melancholic features" is applied if these features are present at the most severe stage of the episode. There is a near-complete absence of the ca- pacity for pleasure, not merely a diminution. A guideline for evaluating the lack of reac- tivity of mood is that even highly desired events are not associated with marked brightening of mood. Either mood does not brighten at all, or it brightens only partially (e.g., up to 20%—40% of normal for only minutes at a time). The “distinct quality‘ of mood that is characteristic of the “with melancholic features" specifier is experienced as qual- itatively different from that during a nonmelancholic depressive episode. A depressed mood that is described as merely more severe, longer lasting, or present without a rea- son is not considered distinct in quality. Psychomotor changes are nearly always pres- ent and are observable by others. Melancholic features exhibit only a modest tendency to repeat across episodes in the same individual. They are more frequent in inpatients, as opposed to outpatients; are less likely to occur in milder than in more severe major depressive episodes; and are more likely to occur in those with psychotic features. With atypical features: This specifier can be applied when these features predomi- nate during the majority of days of the current or most recent major depressive episode or persistent depressive disorder. A. Mood reactivity (i.e., mood brightens in response to actual or potential positive events). B. Two (or more) of the following: 1. Significant weight gain or increase in appetite. 2. Hypersomnia.3. Leaden paralysis (i.e., heavy, leaden feelings in arms or legs). 4. A Iong-standing pattern of interpersonal rejection sensitivity (not limited to epi- sodes of mood disturbance) that results in significant social or occupational im- pairment. C. Criteria are not met for “with melancholic features" or “with catatonia” during the same episode. Note: “Atypical depression” has historical significance (i.e., atypical in contradistinction to the more classical agitated, “endogenous" presentations of depression that were the ical presentation as the term might imply. Mood reactivity is the capacity to be cheered up when presented with positive events (e.g., a visit from children, compliments from others). Mood may become euthymic (not sad) even for extended periods of time if the external circumstances remain favorable. weight gain. Hypersomnia may include either an extended period of nighttime sleep or daytime napping that totals at least 10 hours of sleep per day (or at least 2 hours more than when not depressed). Leaden paralysis is defined as feeling heavy, leaden, or weighted down, usually in the arms or legs. This sensation is generally present for at least an hour a day but often lasts for many hours at a time. Unlike the other atypical features, pathological sensitivity to perceived interpersonal rejection is a trait that has an early onset and persists throughout most of adult life. Rejection sensitivity occurs both when the person is and is not depressed, though it may be exacerbated during depressive periods. With psychotic features: Delusions and/or hallucinations are present.With mood-congruent psychotic features: The content of all delusions and hal- lucinations is consistent with the typical depressive themes of personal inade- quacy, guilt, disease, death, nihilism. or deserved punishment. With mood-incongruent psychotic features: The content of the delusions or hal- lucinations does not involve typical depressive themes of personal inadequacy, guilt, disease, death, nihilism, or deserved punishment, or the content is a mixture of mood-incongruent and mood-congruent themes. With catatonia: The catatonia specifier can apply to an episode of depression if cata- tonic features are present during most of the episode. See criteria for catatonia asso- ciated with a mental disorder (for a description of catatonia, see the chapter “Schizophrenia Spectrum and Other Psychotic Disorders"). With peripartum onset: This specifier can be applied to the current or, it full criteria are not currently met for a major depressive episode, most recent episode of major de- pression if onset of mood symptoms occurs during pregnancy or in the 4 weeks follow- ing delivery. Note: Mood episodes can have their onset either during pregnancy or postpartum. Although the estimates differ according to the period of Iollow-up after delivery, be- tween 3% and 6% of women will experience the onset of a major depressive epi- sode during pregnancy or in the weeks or months following delivery. Fifty percent of “postpartum" major depressive episodes actually begin prior to delivery. Thus, these episodes are referred to collectively as peripartum episodes. Women with attacks. Prospective studies have demonstrated that mood and anxiety symptoms during pregnancy, as well as the “baby blues," increase the risk for a postpartum major depressive episode. Peripartum-onset mood episodes can present either with or without psychotic features. Infanticide is most often associated with postpartum psychotic episodes that are characterized by command hallucinations to kill the infant or delusions that the infant is possessed, but psychotic symptoms can also occur in severe postpar- tum mood episodes without such specific delusions or hallucinations. Postpartum mood (major depressive or manic) episodes with psychotic features appear to occur in from 1 in 500 to 1 in 1,000 deliveries and may be more common in primiparous women. The risk of postpartum episodes with psychotic features is particularly increased for women with prior postpartum mood episodes but is also elevated for those with a prior history of a depressive or bipolar disorder (especially bipolar | disorder) and those with a family history of bipolar disorders. Once a woman has had a postpartum episode with psychotic features, the risk of recurrence with each subsequent delivery is between 30% and 50%. Postpartum episodes must be differentiated from delirium occurring in the postpartum period, which is distinguished by a fluctuating level of awareness or attention. The postpar- tum period is unique with respect to the degree of neuroendocrine alterations and psychosocial adjustments, the potential impact of breast—feeding on treatment planning, and the Iong-term implications of a history of postpartum mood disorder on subsequent family planning. With seasonal pattern: This specifier applies to recurrent major depressive disorder. A. There has been a regular temporal relationship between the onset of major depres- sive episodes in major depressive disorder and a particular time of the year (e.g., in the fall or winter). Note: Do not include cases in which there is an obvious effect of seasonally related psychosocial stressors (e.g., regularly being unemployed every winter). B. Full remissions (or a change from major depression to mania or hypomania) also occur at a characteristic time of the year (e.g., depression disappears in the spring). C. In the last 2 years, two major depressive episodes have occurred that demonstrate the temporal seasonal relationships defined above and no nonseasonal major de- pressive episodes have occurred during that same period. D. Seasonal major depressive episodes (as described above) substantially outnum- ber the nonseasonal major depressive episodes that may have occurred over the individual’s lifetime. Note: The specifier “with seasonal pattern" can be applied to the pattern of major de- pressive episodes in major depressive disorder. recurrent. The essential feature is the onset and remission of major depressive episodes at characteristic times of the year. In most cases, the episodes begin in tall or winter and remit in spring. Less commonly, there may be recurrent summer depressive episodes. This pattern of onset and remis- sion of episodes must have occurred during at least a 2-year period. without any non- seasonal episodes occurring during this period. In addition, the seasonal depressive the individual’s lifetime. This specifier does not apply to those situations in which the pattern is better ex- plained by seasonally linked psychosocial stressors (e.g., seasonal unemployment or school schedule). Major depressive episodes that occur in a seasonal pattern are often characterized by prominent energy, hypersomnia, overeating, weight gain, and a crav- ing for carbohydrates. It is unclear whether a seasonal pattern is more likely in recur- rent major depressive disorder or in bipolar disorders. However, within the bipolar disorders group, a seasonal pattern appears to be more likely in bipolar II disorder than in bipolar | disorder. In some individuals, the onset of manic or hypomanic episodes may also be linked to a particular season. The prevalence of winter-type seasonal pattern appears to vary with latitude. age, and sex. Prevalence increases with higher latitudes. Age is also a strong predictor of seasonality, with younger persons at higher risk for winter depressive episodes. Specify it:In partial remission: Symptoms of the immediately previous major depressive episode are present, but full criteria are not met, or there is a period lasting less than 2 months without any significant symptoms of a major depressive episode following the end of such an episode. In full remission: During the past 2 months, no significant signs or symptoms of the disturbance were present. Specify current severity:Severity is based on the number of criterion symptoms, the severity of those symptoms, and the degree of functional disability. Mild: Few, if any, symptoms in excess of those required to make the diagnosis are present, the intensity of the symptoms is distressing but manageable, and the symp- toms result in minor impairment in social or occupational functioning. Moderate: The number of symptoms. intensity of symptoms, and/or functional impair- ment are between those specified for “mild” and “severe.” Severe: The number of symptoms is substantially in excess of that required to make the diagnosis, the intensity of the symptoms is seriously distressing and unmanage- able, and the symptoms markedly interfere with social and occupational functioning. Anxiety d isorders include disorders that share features of excessive fear and anxi- ety and related behavioral disturbances. Fear is the emotional response to real or per- ceived imminent threat, whereas anxiety is anticipation of future threat. Obviously, these two states overlap, but they also differ, with fear more often associated with surges of au- tonomic arousal necessary for fight or flight, thoughts of immediate danger, and escape behaviors, and anxiety more often associated with muscle tension and vigilance in prep— aration for future danger and cautious or avoidant behaviors. Sometimes the level of fear or anxiety is reduced by pervasive avoidance behaviors. Panic attacks feature prominently within the anxiety disorders as a particular type of fear response. Panic attacks are not lim- ited to anxiety disorders but rather can be seen in other mental disorders as well. The anxiety disorders differ from one another in the types of objects or situations that induce fear, anxiety, or avoidance behavior, and the associated cognitive ideation. Thus, while the anxiety disorders tend to be highly comorbid with each other, they can be dif- ferentiated by close examination of the types of situations that are feared or avoided and the content of the associated thoughts or beliefs. cessive or persisting beyond developmentally appropriate periods. They differ from tran- sient fear or anxiety, often stress—induced, by being persistent (e.g., typically lasting 6 months or more), although the criterion for duration is intended as a general guide with allowance for some degree of flexibility and is sometimes of shorter duration in children (as in sepa- ration anxiety disorder and selective mutism). Since individuals with anxiety disorders typically overestimate the danger in situations they fear or avoid, the primary determina- tion of whether the fear or anxiety is excessive or out of proportion is made by the clinician, taking cultural contextual factors into account. Many of the anxiety disorders develop in childhood and tend to persist if not treated. Most occur more frequently in females than in males (approximately 2:1 ratio). Each anxiety disorder is diagnosed only when the symp— toms are not attributable to the physiological effects of a substance/medication or to another medical condition or are not better explained by another mental disorder. The chapter is arranged developmentally, with disorders sequenced according to the typical age at onset. The individual with separation anxiety disorder is fearful or anxious about separation from attachment figures to a degree that is developmentally inappro- priate. There is persistent fear or anxiety about harm coming to attachment figures and events that could lead to loss of or separation from attachment figures and reluctance to go away from attachment figures, as well as nightmares and physical symptoms of distress. Al- though the symptoms often develop in childhood, they can be expressed throughout adult— hood as well. Selective mutism is characterized by a consistent failure to speak in social situations in which there is an expectation to speak (e.g., school) even though the individual speaks in other situations. The failure to speak has significant consequences on achievement in aca- demic or occupational settings or otherwise interferes with normal social communication. Individuals with specific phobia are fearful or anxious about or avoidant of circum- scribed objects or situations. A specific cognitive ideation is not featured in this disorder, as it is in other anxiety disorders. The fear, anxiety, or avoidance is almost always imme- diately induced by the phobic situation, to a degree that is persistent and out of proportion to the actual risk posed. There are various types of specific phobias: animal; natural envi- ronment; blood—injection—injury; situational; and other situations. In social anxiety disorder (social phobia), the individual is fearful or anxious about or avoidant of social interactions and situations that involve the possibility of being scruti- nized. These include social interactions such as meeting unfamiliar people, situations in which the individual may be observed eating or drinking, and situations in which the in- dividual performs in front of others. The cognitive ideation is of being negatively evalu- ated by others, by being embarrassed, humiliated, or rejected, or offending others. In panic disorder, the individual experiences recurrent unexpected panic attacks and is behavior in maladaptive ways because of the panic attacks (e.g., avoidance of exercise or of unfamiliar locations). Panic attacks are abrupt surges of intense fear or intense discomfort that reach a peak within minutes, accompanied by physical and / or cognitive symptoms. Limited—symptom panic attacks include fewer than four symptoms. Panic attacks may be expected, such as in response to a typically feared object or situation, or unexpected, meaning that the panic attack occurs for no apparent reason. Panic attacks function as a marker and prognostic factor for severity of diagnosis, course, and comorbidity across an array of dis- orders, including, but not limited to, the anxiety disorders (e.g., substance use, depressive and psychotic disorders). Panic attack may therefore be used as a descriptive specifier for any anxiety disorder as well as other mental disorders. Individuals with agoraphobia are fearful and anxious about two or more of the follow- ing situations: using public transportation; being in open spaces; being in enclosed places; standing in line or being in a crowd; or being outside of the home alone in other situations. The individual fears these situations because of thoughts that escape might be difficult or help might not be available in the event of developing panic-like symptoms or other inca- pacitating or embarrassing symptoms. These situations almost always induce fear or anx- iety and are often avoided and require the presence of a companion. The key features of generalized anxiety disorder are persistent and excessive anxiety and worry about various domains, including work and school performance, that the indi- vidual finds difficult to control. In addition, the individual experiences physical symptoms, centrating or mind going blank; irritability; muscle tension; and sleep disturbance. Substance/ medication-induced anxiety disorder involves anxiety due to substance in- toxication or withdrawal or to a medication treatment. In anxiety disorder due to another medical condition, anxiety symptoms are the physiological consequence of another med- ical condition. Disorder-specific scales are available to better characterize the severity of each anxiety disorder and to capture change in severity over time. For ease of use, particularly for in- dividuals with more than one anxiety disorder, these scales have been developed to have the same format (but different focus) across the anxiety disorders, with ratings of behav- ioral symptoms, cognitive ideation symptoms, and physical symptoms relevant to each disorder. Diagnostic Criteria 309.21 (F93.0)A. Developmentally inappropriate and excessive fear or anxiety concerning separation from those to whom the individual is attached, as evidenced by at least three of the following: 1. Recurrent excessive distress when anticipating or experiencing separation from home or from major attachment figures. 2. Persistent and excessive worry about losing major attachment figures or about pos- sible harm to them, such as illness, injury, disasters, or death. 3. Persistent and excessive worry about experiencing an untoward event (e.g., getting lost, being kidnapped, having an accident, becoming ill) that causes separation from a major attachment figure. 4. Persistent reluctance or refusal to go out, away from home, to school, to work, or elsewhere because of fear of separation. 5. Persistent and excessive tear of or reluctance about being alone or without major attachment figures at home or in other settings. 6. Persistent reluctance or refusal to sleep away from home or to go to sleep without being near a major attachment figure. Repeated nightmares involving the theme of separation.8. Repeated complaints of physical symptoms (e.g., headaches, stomachaches, nau- sea, vomiting) when separation from major attachment figures occurs or is antici- pated. B. The fear. anxiety, or avoidance is persistent, lasting at least 4 weeks in children and adolescents and typically 6 months or more in adults. C. The disturbance causes clinically significant distress or impairment in social, aca- demic, occupational, or other important areas of functioning. D. The disturbance is not better explained by another mental disorder, such as refusing to leave home because of excessive resistance to change in autism spectrum disorder; delusions or hallucinations concerning separation in psychotic disorders; refusal to go having an illness in illness anxiety disorder. The essential feature of separation anxiety disorder is excessive fear or anxiety concerning separation from home or attachment figures. The anxiety exceeds what may be expected given the person’s developmental level (Criterion A). Individuals with separation anxiety disorder have symptoms that meet at least three of the following criteria: They experience recurrent excessive distress when separation from home or major attachment figures is an— ticipated or occurs (Criterion A1). They worry about the well-being or death of attachment figures, particularly when separated from them, and they need to know the whereabouts of their attachment figures and want to stay in touch with them (Criterion A2). They also worry about untoward events to themselves, such as getting lost, being kidnapped, or having an accident, that would keep them from ever being reunited with their major at- tachment figure (Criterion A3). Individuals with separation anxiety disorder are reluctant or refuse to go out by themselves because of separation fears (Criterion A4). They have figures at home or in other settings. Children with separation anxiety disorder may be un- able to stay or go in a room by themselves and may display "clinging” behavior, staying close to or ”shadowing" the parent around the house, or requiring someone to be with them when going to another room in the house (Criterion A5). They have persistent reluc- tance or refusal to go to sleep without being near a major attachment figure or to sleep away from home (Criterion A6). Children with this disorder often have difficulty at bed- time and may insist that someone stay with them until they fall asleep. During the night, they may make their way to their parents’ bed (or that of a significant other, such as a sib- ling). Children may be reluctant or refuse to attend camp, to sleep at friends’ homes, or to go on errands. Adults may be uncomfortable when traveling independently (e.g., sleeping in a hotel room). There may be repeated nightmares in which the content expresses the in- dividual’s separation anxiety (e.g., destruction of the family through fire, murder, or other catastrophe) (Criterion A7). Physical symptoms (e.g., headaches, abdominal complaints, nausea, vomiting) are common in children when separation from major attachment fig- ures occurs or is anticipated (Criterion A8). Cardiovascular symptoms such as palpitations, dizziness, and feeling faint are rare in younger children but may occur in adolescents and adults. The disturbance must last for a period of at least 4 weeks in children and adolescents younger than 18 years and is typically 6 months or longer in adults (Criterion B). However, the duration criterion for adults should be used as a general guide, with allowance for some degree of flexibility. The disturbance must cause clinically significant distress or im- pairment in social, academic, occupational, or other important areas of functioning (Cri- terion C). When separated from major attachment figures, children with separation anxiety disorder may exhibit social withdrawal, apathy, sadness, or difficulty concentrating on work or play. Depending on their age, individuals may have fears of animals, monsters, the dark, muggers, burglars, kidnappers, car accidents, plane travel, and other situations that are perceived as presenting danger to the family or themselves. Some individuals become homesick and uncomfortable to the point of misery when away from home. Separation anxiety disorder in children may lead to school refusal, which in turn may lead to academic difficulties and social isolation. When extremely upset at the prospect of separation, chil- dren may show anger or occasionally aggression toward someone who is forcing separa- tion. When alone, especially in the evening or the dark, young children may report unusual perceptual experiences (e.g., seeing people peering into their room, frightening creatures reaching for them, feeling eyes staring at them). Children with this disorder may be de- scribed as demanding, intrusive, and in need of constant attention, and, as adults, may ap- pear dependent and overprotective. The individual’s excessive demands often become a source of frustration for family members, leading to resentment and conflict in the family. The 12-month prevalence of separation anxiety disorder among adults in the United States is 0.9%—1.9%. In children, 6- to 12-month prevalence is estimated to be approximately 4%. In adolescents in the United States, the 12-month prevalence is 1.6%. Separation anxiety is the most prevalent anxiety disorder in children younger than 12 years. In clinical sam- ples of children, the disorder is equally common in males and females. In the community, the disorder is more frequent in females. Periods of heightened separation anxiety from attachment figures are part of normal early development and may indicate the development of secure attachment relationships (e.g., around 1 year of age, when infants may suffer from stranger anxiety). Onset of separation anxiety disorder may be as early as preschool age and may occur at any time during child- hood and more rarely in adolescence. Typically there are periods of exacerbation and re- mission. In some cases, both the anxiety about possible separation and the avoidance of situations involving separation from the home or nuclear family (e.g., going away to col- lege, moving away from attachment figures) may persist through adulthood. However, the majority of children with separation anxiety disorder are free of impairing anxiety dis- orders over their lifetimes. Many adults with separation anxiety disorder do not recall a childhood onset of separation anxiety disorder, although they may recall symptoms. The manifestations of separation anxiety disorder vary with age. Younger children are more reluctant to go to school or may avoid school altogether. Younger children may not express worries or specific fears of definite threats to parents, home, or themselves, and the anxiety is manifested only when separation is experienced. As children age, worries emerge; these are often worries about specific dangers (e.g., accidents, kidnapping, mug- ging, death) or vague concerns about not being reunited with attachment figures. In adults, separation anxiety disorder may limit their ability to cope with changes in circumstances (e.g., moving, getting married). Adults with the disorder are typically overconcemed about their offspring and spouses and experience marked discomfort when separated from them. They may also experience significant disruption in work or social experiences because of needing to continuously check on the whereabouts of a significant other. Environmental. Separation anxiety disorder often develops after life stress, especially a loss (e.g., the death of a relative or pet; an illness of the individual or a relative; a change of schools;parenta1 divorce; a move to a new neighborhood; immigration; a disaster that in- volved periods of separation from attachment figures). In young adults, other examples of life stress include leaving the parental home, entering into a romantic relationship, and be- coming a parent. Parental overprotection and intrusiveness may be associated with sepa- ration anxiety disorder. Genetic and physiological. Separation anxiety disorder in children may be heritable. Heritability was estimated at 73% in a community sample of 6-year-old twins, with higher rates in girls. Children with separation anxiety disorder display particularly enhanced sensitivity to respiratory stimulation using COz-enriched air. There are cultural variations in the degree to which it is considered desirable to tolerate separation, so that demands and opportunities for separation between parents and chil- dren are avoided in some cultures. For example, there is wide variation across countries and cultures with respect to the age at which it is expected that offspring should leave the parental home. It is important to differentiate separation anxiety disorder from the high value some cultures place on strong interdependence among family members. Girls manifest greater reluctance to attend or avoidance of school than boys. Indirect ex- pression of fear of separation may be more common in males than in females, for example, by limited independent activity, reluctance to be away from home alone, or distress when spouse or offspring do things independently or when contact with spouse or offspring is not possible. Separation anxiety disorder in children may be associated with an increased risk for sui- cide. In a community sample, the presence of mood disorders, anxiety disorders, or sub- stance use has been associated with suicidal ideation and attempts. However, this association is not specific to separation anxiety disorder and is found in several anxiety disorders. Functional Consequences of Separatlon Anxiety DisorderIndividuals with separation anxiety disorder often limit independent activities away from home or attachment figures (e.g., in children, avoiding school, not going to camp, having difficulty sleeping alone; in adolescents, not going away to college; in adults, not leaving the parental home, not traveling, not working outside the home). Generalized anxiety disorder. Separation anxiety disorder is distinguished from gener- alized anxiety disorder in that the anxiety predominantly concerns separation from attach- ment figures, and if other worries occur, they do not predominate the clinical picture. Panic disorder. Threats of separation may lead to extreme anxiety and even a panic at- tack. In separation anxiety disorder, in contrast to panic disorder, the anxiety concerns the possibility of being away from attachment figures and worry about untoward events be- falling them, rather than being incapacitated by an unexpected panic attack. Agoraphobia. Unlike individuals with agoraphobia, those with separation anxiety dis- order are not anxious about being trapped or incapacitated in situations from which es- cape is perceived as difficult in the event of panic-like symptoms or other incapacitating symptoms. Conduct disorder. School avoidance (truancy) is common in conduct disorder, but anx- iety about separation is not responsible for school absences, and the child or adolescent usually stays away from, rather than returns to, the home. Social anxiety disorder. School refusal may be due to social anxiety disorder (social pho- bia). In such instances, the school avoidance is due to fear of being judged negatively by oth- ers rather than to worries about being separated from the attachment figures. Posttraumatic stress disorder. Fear of separation from loved ones is common after trau- matic events such as a disasters, particularly when periods of separation from loved ones were experienced during the traumatic event. In posttraumatic stress disorder (PTSD), the central symptoms concern intrusions about, and avoidance of, memories associated with the traumatic event itself, whereas in separation anxiety disorder, the worries and avoid- ance concern the well-being of attachment figures and separation from them. Illness anxiety disorder. Individuals with illness anxiety disorder worry about specific illnesses they may have, but the main concern is about the medical diagnosis itself, not about being separated from attachment figures. Bereavement. Intense yearning or longing for the deceased, intense sorrow and emo- tional pain, and preoccupation with the deceased or the circumstances of the death are ex- pected responses occurring in bereavement, whereas fear of separation from other attachment figures is central in separation anxiety disorder. Depressive and bipolar disorders. These disorders may be associated with reluctance to leave home, but the main concern is not worry or fear of untoward events befalling at- tachment figures, but rather low motivation for engaging with the outside world. How- ever, individuals with separation anxiety disorder may become depressed while being separated or in anticipation of separation. Oppositional defiant disorder. Children and adolescents with separation anxiety disor- der may be oppositional in the context of being forced to separate from attachment figures. Oppositional defiant disorder should be considered only when there is persistent opposi- tional behavior unrelated to the anticipation or occurrence of separation from attachment figures. Psychotic disorders. Unlike the hallucinations in psychotic disorders, the unusual per- ceptual experiences that may occur in separation anxiety disorder are usually based on a misperception of an actual stimulus, occur only in certain situations (e.g., nighttime), and are reversed by the presence of an attachment figure. Personality disorders. Dependent personality disorder is characterized by an indis- criminate tendency to rely on others, whereas separation anxiety disorder involves con- cern about the firoximity and safety of main attachment figures. Borderline personality disorder is characterized by fear of abandonment by loved ones, but problems in identity, self—direction, interpersonal functioning, and impulsivity are additionally central to that disorder, whereas they are not central to separation anxiety disorder. In children, separation anxiety disorder is highly comorbid with generalized anxiety dis- order and specific phobia. In adults, common comorbidities include specific phobia, PTSD, panic disorder, generalized anxiety disorder, social anxiety disorder, agoraphobia, obsessive-compulsive disorder, and personality disorders. Depressive and bipolar disor- ders are also comorbid with separation anxiety disorder in adults. Diagnostic Criteria 312.23 (F94.0)A. Consistent failure to speak in specific social situations in which there is an expectation for speaking (e.g., at school) despite speaking in other situations. B. The disturbance interferes with educational or occupational achievement or with social communication. C. The duration of the disturbance is at least 1 month (not limited to the first month of school). D. The failure to speak is not attributable to a lack of knowledge of, or comfort with, the spoken language required in the social situation. E. The disturbance is not better explained by a communication disorder (e.g., childhood- onset fluency disorder) and does not occur exclusively during the course of autism spectrum disorder, schizophrenia, or another psychotic disorder. When encountering other individuals in social interactions, children with selective mut- ism do not initiate speech or reciprocally respond when spoken to by others. Lack of speech occurs in social interactions with Children or adults. Children with selective mut- ism will speak in their home in the presence of immediate family members but often not even in front of close friends or second-degree relatives, such as grandparents or cousins. The disturbance is often marked by high social anxiety. Children with selective mutism of- ten refuse to speak at school, leading to academic or educational impairment, as teachers often find it difficult to assess skills such as reading. The lack of speech may interfere with social communication, although children with this disorder sometimes use nonspoken or nonverbal means (e.g., grunting, pointing, writing) to communicate and may be willing or eager to perform or engage in social encounters when speech is not required (e.g., nonver- bal parts in school plays). Associated features of selective mutism may include excessive shyness, fear of social em- barrassment, social isolation and withdrawal, clinging, compulsive traits, negativism, temper tantrums, or mild oppositional behavior. Although children with this disorder generally have normal language skills, there may occasionally be an associated commu- nication disorder, although no particular association with a specific communication dis- order has been identified. Even when these disorders are present, anxiety is present as well. In clinical settings, children with selective mutism are almost always given an addi— tional diagnosis of another anxiety disorder—most commonly, social anxiety disorder (so- cial phobia). Selective mutism is a relatively rare disorder and has not been included as a diagnostic cat— egory in epidemiological studies of prevalence of childhood disorders. Point prevalence using various clinic or school samples ranges between 0.03% and 1% depending on the set- ting (e.g., clinic vs. school vs. general population) and ages of the individuals in the sample. The prevalence of the disorder does not seem to vary by sex or race/ethnicity. The disor- der is more likely to manifest in young children than in adolescents and adults. The onset of selective mutism is usually before age 5 years, but the disturbance may not come to clinical attention until entry into school, where there is an increase in social inter- action and performance tasks, such as reading aloud. The persistence of the disorder is variable. Although clinical reports suggest that many individuals ”outgrow” selective mutism, the longitudinal course of the disorder is unknown. In some cases, particularly in individuals with social anxiety disorder, selective mutism may disappear, but symptoms of social anxiety disorder remain. Temperamental. Temperamental risk factors for selective mutism are not well identi- fied. Negative affectivity (neuroticism) or behavioral inhibition may play a role, as may parental history of shyness, social isolation, and social anxiety. Children with selective mutism may have subtle receptive language difficulties compared with their peers, al- though receptive language is still within the normal range. Environmental. Social inhibition on the part of parents may serve as a model for social reticence and selective mutism in children. Furthermore, parents of children with selective mutism have been described as overprotective or more controlling than parents of chil- dren with other anxiety disorders or no disorder. Genetic and physiological factors. Because of the significant overlap between selective mutism and social anxiety disorder, there may be shared genetic factors between these conditions. Children in families who have immigrated to a country where a different language is spo- ken may refuse to speak the new language because of lack of knowledge of the language. If comprehension of the new language is adequate but refusal to speak persists, a diagno— sis of selective mutism may be warranted. Functional Consequences of Selective MutismSelective mutism may result in social impairment, as children may be too anxious to en- gage in reciprocal social interaction with other children. As children with selective mutism mature, they may face increasing social isolation. In school settings, these children may suffer academic impairment, because often they do not communicate with teachers re- garding their academic or personal needs (e.g., not understanding a class assignment, not asking to use the restroom). Severe impairment in school and social functioning, including that resulting from teasing by peers, is common. In certain instances, selective mutism may serve as a compensatory strategy to decrease anxious arousal in social encounters. Communication disorders. Selective mutism should be distinguished from speech dis- turbances that are better explained by a communication disorder, such as language disorder, speech sound disorder (previously phonological disorder), childhood-onset fluency disorder (stuttering), or pragmatic (social) communication disorder. Unlike selec- tive mutism, the speech disturbance in these conditions is not restricted to a specific social situation. Neurodevelopmental disorders and schizophrenia and other psychotic disorders.Individuals with an autism spectrum disorder, schizophrenia or another psychotic disor- der, or severe intellectual disability may have problems in social communication and be unable to speak appropriately in social situations. In contrast, selective mutism should be diagnosed only when a child has an established capacity to speak in some social situations (e.g., typically at home). Social anxiety disorder (social phobia). The social anxiety and social avoidance in so- cial anxiety disorder may be associated with selective mutism. In such cases, both diagno- ses may be given. The most common comorbid conditions are other anxiety disorders, most commonly so- cial anxiety disorder, followed by separation anxiety disorder and specific phobia. Oppo- sitional behaviors have been noted to occur in children with selective mutism, although oppositional behavior may be limited to situations requiring speech. Communication de- lays or disorders also may appear in some children with selective mutism. A. Marked fear or anxiety about a specific object or situation (e.g., flying, heights, animals, receiving an injection, seeing blood). Note: In children, the fear or anxiety may be expressed by crying, tantrums, freezing, or clinging. B. The phobic object or situation almost always provokes immediate fear or anxiety. C. The phobic object or situation is actively avoided or endured with intense fear or anxiety. D. The fear or anxiety is out of proportion to the actual danger posed by the specific object or situation and to the sociocultural context. E. The fear, anxiety, or avoidance is persistent, typically lasting for 6 months or more. F. The fear, anxiety, or avoidance causes clinically significant distress or impairment in social, occupational, or other important areas of functioning. G. The disturbance is not better explained by the symptoms of another mental disorder, including tear, anxiety, and avoidance of situations associated with panic-Iike symptoms obsessions (as in obsessive-compulsive disorder); reminders of traumatic events (as in aration anxiety disorder); or social situations (as in social anxiety disorder). Specify if:Code based on the phobic stimulus: 300.29 (F40.218) Animal (e.g.. spiders, insects, dogs). 300.29 (F40.228) Natural environment (e.g., heights, storms, water).300.29 (F40.23x) Blood-injection-iniury (e.g., needles, invasive medical procedures).Coding note: Select specific tCD-10-CM code as follows: F40.230 tear of blood; F40.231 fear of injections and transfusions; F40.232 tear of other medical care; or F40.233 fear of injury.300.29 (F40.248) Situational (e.g.. airplanes, elevators, enclosed places).300.29 (F4o.298) Other (e.g., situations that may lead to choking or vomiting; in chil- dren, e.g., loud sounds or costumed characters). Coding note: When more than one phobic stimulus is present, code all |CD-10-CM codes that apply (e.g., for fear of snakes and flying, F40.218 specific phobia, animal, and F40.248 specific phobia, situational).It is common for individuals to have multiple specific phobias. The average individual with specific phobia fears three objects or situations, and approximately 75% of individuals with specific phobia fear more than one situation or object. In such cases, multiple specific phobia diagnoses, each with its own diagnostic code reflecting the phobic stimulus, would need to be given. For example, if an individual fears thunderstorms and flying, then two diagnoses would be given: specific phobia, natural environment, and specific phobia, situational. A key feature of this disorder is that the fear or anxiety is circumscribed to the presence of a particular situation or object (Criterion A), which may be termed the phobic stimulus. The cat— egories of feared situations or objects are provided as specifiers. Many individuals fear objects or situations from more than one category, or phobic stimulus. For the diagnosis of specific phobia, the response must differ from normal, transient fears that commonly occur in the pop— ulation. To meet the criteria for a diagnosis, the fear or anxiety must be intense or severe (i.e., ”marked") (Criterion A). The amount of fear experienced may vary with proximity to the feared object or situation and may occur in anticipation of or in the actual presence of the object or situation. Also, the fear or anxiety may take the form of a full or limited symptom panic at- tack (i.e., expected panic attack). Another characteristic of specific phobias is that fear or anxi- ety is evoked nearly every time the individual comes into contact with the phobic stimulus (Criterion B). Thus, an individual who becomes anxious only occasionally upon being con- fronted with the situation or object (e.g., becomes anxious when flying only on one out of every five airplane flights) would not be diagnosed with specific phobia. However, the degree of fear or anxiety expressed may vary (from anticipatory anxiety to a full panic attack) across different occasions of encountering the phobic object or situation because of various contextual factors such as the presence of others, duration of exposure, and other threatening elements such as turbulence on a flight for individuals who fear flying. Fear and anxiety are often expressed dif- ferently between children and adults. Also, the fear or anxiety occurs as soon as the phobic ob- ject or situation is encountered (i.e., immediately rather than being delayed). The individual actively avoids the situation, or if he or she either is unable or decides not to avoid it, the situation or object evokes intense fear or anxiety (Criterion C). Active avoidance means the individual intentionally behaves in ways that are designed to prevent or minimize contact with phobic objects or situations (e.g., takes tunnels instead of bridges on daily commute to work for fear of heights; avoids entering a dark room for fear of spi- ders; avoids accepting a job in a locale where a phobic stimulus is more common). Avoid- ance behaviors are often obvious (e.g., an individual who fears blood refusing to go to the doctor) but are sometimes less obvious (e.g., an individual who fears snakes refusing to look at pictures that resemble the form or shape of snakes). Many individuals with specific ways designed to avoid the phobic object or situation as much as possible (e.g., an indi- vidual diagnosed with specific phobia, animal, who moves to reside in an area devoid of the particular feared animal). Therefore, they no longer experience fear or anxiety in their daily life. In such instances, avoidance behaviors or ongoing refusal to engage in activities that would involve exposure to the phobic object or situation (e.g., repeated refusal to ac- cept offers for work—related travel because of fear of flying) may be helpful in confirming the diagnosis in the absence of overt anxiety or panic. The fear or anxiety is out of proportion to the actual danger that the object or situation poses, or more intense than is deemed necessary (Criterion D). Although individuals with specific phobia often recognize their reactions as disproportionate, they tend to overesti- mate the danger in their feared situations, and thus the judgment of being out of propor- tion is made by the clinician. The individual’s sociocultural context should also be taken into account. For example, fears of the dark may be reasonable in a context of ongoing violence, and fear of insects may be more disproportionate in settings where insects are consumed in the diet. The fear, anxiety, or avoidance is persistent, typically lasting for 6 months or more (Criterion E), which helps distinguish the disorder from transient fears that are common in the population, particularly among children. However, the duration criterion should be used as a general guide, with allowance for some degree of flexibility. The specific phobia must cause clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning in order for the disorder to be diag- nosed (Criterion F). Individuals with specific phobia typically experience an increase in physiological arousal in anticipation of or during exposure to a phobic object or situation. However, the physi- ological response to the feared situation or object varies. Whereas individuals with situa- tional, natural environment, and animal specific phobias are likely to show sympathetic nervous system arousal, individuals with blood-injection-injury specific phobia often demonstrate a vasovagal fainting or near-fainting response that is marked by initial brief acceleration of heart rate and elevation of blood pressure followed by a deceleration of heart rate and a drop in blood pressure. Current neural systems models for specific phobia emphasize the amygdala and related structures, much as in other anxiety disorders. In the United States, the 12-month community prevalence estimate for specific phobia is approximately 7%—9%. Prevalence rates in European countries are largely similar to those in the United States (e.g., about 6%), but rates are generally lower in Asian, African, and Latin American countries (2%—4%). Prevalence rates are approximately 5% in children and are approximately 16% in 13— to 17-year-olds. Prevalence rates are lower in older individ- uals (about 3%—5%), possibly reflecting diminishing severity to subclinical levels. Females are more frequently affected than males, at a rate of approximately 2:1, although rates vary across different phobic stimuli. That is, animal, natural environment, and situational spe- cific phobias are predominantly experienced by females, whereas blood-injection-injury phobia is experienced nearly equally by both genders. Specific phobia sometimes develops following a traumatic event (e.g., being attacked by an animal or stuck in an elevator), observation of others going through a traumatic event (e.g., watching someone drown), an unexpected panic attack in the to be feared situation (e.g., an unexpected panic attack while on the subway), or informational transmission (e.g., ex- tensive media coverage of a plane crash). However, many individuals with specific phobia are unable to recall the specific reason for the onset of their phobias. Specific phobia usu- ally develops in early childhood, with the majority of cases developing prior to age 10 years. The median age at onset is between 7 and 11 years, with the mean at about 10 years. Situational specific phobias tend to have a later age at onset than natural environment, an- imal, or blood-injection-injury specific phobias. Specific phobias that develop in child- hood and adolescence are likely to wax and wane during that period. However, phobias that do persist into adulthood are unlikely to remit for the majority of individuals. When specific phobia is being diagnosed in children, two issues should be considered. First, young children may express their fear and anxiety by crying, tantrums, freezing, or clinging. Second, young children typically are not able to understand the concept of avoidance. Therefore, the clinician should assemble additional information from parents, teachers, or others who know the child well. Excessive fears are quite common in young children but are usually transitory and only mildly impairing and thus considered devel- opmentally appropriate. In such cases a diagnosis of specific phobia would not be made. When the diagnosis of specific phobia is being considered in a child, it is important to assess the degree of impairment and the duration of the fear, anxiety, or avoidance, and whether it is typical for the child’s particular developmental stage. Although the prevalence of specific phobia is lower in older populations, it remains one of the more commonly experienced disorders in late life. Several issues should be con- sidered when diagnosing specific phobia in older populations. First, older individuals may be more likely to endorse natural environment specific phobias, as well as phobias of falling. Second, specific phobia (like all anxiety disorders) tends to co-occur with medical concerns in older individuals, including coronary heart disease and chronic obstructive pulmonary disease. Third, older individuals may be more likely to attribute the symptoms of anxiety to medical conditions. Fourth, older individuals may be more likely to manifest anxiety in an atypical manner (e.g., involving symptoms of both anxiety and depression) and thus be more likely to warrant a diagnosis of unspecified anxiety disorder. Addition— ally, the presence of specific phobia in older adults is associated with decreased quality of life and may serve as a risk factor for major neurocognitive disorder. Although most specific phobias develop in childhood and adolescence, it is possible for a specific phobia to develop at any age, often as the result of experiences that are traumatic. For example, phobias of choking almost always follow a near-choking event at any age. Temperamental. Temperamental risk factors for specific phobia, such as negative affec- tivity (neuroticism) or behavioral inhibition, are risk factors for other anxiety disorders as well. Environmental. Environmental risk factors for specific phobias, such as parental over- protectiveness, parental loss and separation, and physical and sexual abuse, tend to pre- dict other anxiety disorders as well. As noted earlier, negative or traumatic encounters with the feared object or situation sometimes (but not always) precede the development of specific phobia. Genetic and physiological. There may be a genetic susceptibility to a certain category of specific phobia (e.g., an individual with a first-degree relative with a specific phobia of an- imals is significantly more likely to have the same specific phobia than any other category of phobia). Individuals with blood-injection-injury phobia show a unique propensity to vasovagal syncope (fainting) in the presence of the phobic stimulus. In the United States, Asians and Latinos report significantly lower rates of specific phobia than non-Latino whites, African Americans, and Native Americans. In addition to having lower prevalence rates of specific phobia, some countries outside of the United States, par- ticularly Asian and African countries, show differing phobia content, age at onset, and gender ratios. Individuals with specific phobia are up to 60% more likely to make a suicide attempt than are individuals without the diagnosis. However, it is likely that these elevated rates are primarily due to comorbidity with personality disorders and other anxiety disorders. Functional Consequences of Specific PhobiaIndividuals with specific phobia show similar patterns of impairment in psychosocial functioning and decreased quality of life as individuals with other anxiety disorders and alcohol and substance use disorders, including impairments in occupational and inter- personal functioning. In older adults, impairment may be seen in caregiving duties and volunteer activities. Also, fear of falling in older adults can lead to reduced mobility and reduced physical and social functioning, and may lead to receiving formal or informal home support. The distress and impairment caused by specific phobias tend to increase with the number of feared objects and situations. Thus, an individual who fears four ob- jects or situations is likely to have more impairment in his or her occupational and social roles and a lower quality of life than an individual who fears only one object or situation. Individuals with blood-injection-injury specific phobia are often reluctant to obtain med- ical care even when a medical concern is present. Additionally, fear of vomiting and chok- ing may substantially reduce dietary intake. Agoraphobia. Situational specific phobia may resemble agoraphobia in its clinical pre- sentation, given the overlap in feared situations (e.g., flying, enclosed places, elevators). If an individual fears only one of the agoraphobia situations, then specific phobia, situa— tional, may be diagnosed. If two or more agoraphobic situations are feared, a diagnosis of agoraphobia is likely warranted. For example, an individual who fears airplanes and ele- vators (which overlap with the "public transportation” agoraphobic situation) but does not fear other agoraphobic situations would be diagnosed with specific phobia, situa- tional, whereas an individual who fears airplanes, elevators, and crowds (which overlap with two agoraphobic situations, ”using public transportation" and ”standing in line and or being in a crowd”) would be diagnosed with agoraphobia. Criterion B of agoraphobia (the situations are feared or avoided ”because of thoughts that escape might be difficult or help might not be available in the event of developing panic-like symptoms or other inca- from specific phobia. If the situations are feared for other reasons, such as fear of being harmed directly by the object or situations (e.g., fear of the plane crashing, fear of the an- imal biting), a specific phobia diagnosis may be more appropriate. Social anxiety disorder. It the situations are feared because of negative evaluation, so- cial anxiety disorder should be diagnosed instead of specific phobia. Separation anxiety disorder. It the situations are feared because of separation from a primary caregiver or attachment figure, separation anxiety disorder should be diagnosed instead of specific phobia. Panic disorder. Individuals with specific phobia may experience panic attacks when con- fronted with their feared situation or object. A diagnosis of specific phobia would be given if the panic attacks only occurred in response to the specific object or situation, whereas a di- agnosis of panic disorder would be given if the individual also experienced panic attacks that were unexpected (i.e., not in response to the specific phobia object or situation). Obsessive-compulsive disorder. If an individual’s primary fear or anxiety is of an ob- ject or situation as a result of obsessions (e.g., fear of blood due to obsessive thoughts about contamination from blood-borne pathogens [i.e., HIV]; fear of driving due to obsessive im- ages of harming others), and if other diagnostic criteria for obsessive-compulsive disorder are met, then obsessive-compulsive disorder should be diagnosed. Trauma- and stressor-related disorders. If the phobia develops following a traumatic event, posttraumatic stress disorder (PTSD) should be considered as a diagnosis. How- ever, traumatic events can precede the onset of PTSD and specific phobia. In this case, a di- agnosis of specific phobia would be assigned only if all of the criteria for PTSD are not met. Eating disorders. A diagnosis of specific phobia is not given if the avoidance behavior is exclusively limited to avoidance of food and food-related cues, in which case a diagnosis of anorexia nervosa or bulimia nervosa should be considered. Schizophrenia spectmm and other psychotic disorders. When the fear and avoidance are due to delusional thinking (as in schizophrenia or other schizophrenia spectrum and other psychotic disorders), a diagnosis of specific phobia is not warranted. Specific phobia is rarely seen in medical-clinical settings in the absence of other psycho- pathology and is more frequently seen in nonmedical mental health settings. Specific pho- bia is frequently associated with a range of other disorders, especially depression in older adults. Because of early onset, specific phobia is typically the temporally primary disorder. Individuals with specific phobia are at increased risk for the development of other dis- orders, including other anxiety disorders, depressive and bipolar disorders, substance- related disorders, somatic symptom and related disorders, and personality disorders (par- ticularly dependent personality disorder). Diagnostic Criteria 300.23 (F40.10)A. Marked tear or anxiety about one or more social situations in which the individual is exposed to possible scrutiny by others. Examples include social interactions (e.g., hav- ing a conversation, meeting unfamiliar people), being observed (e.g., eating or drink- ing), and performing in front of others (e.g., giving a speech). Note: In children, the anxiety must occur in peer settings and not just during interac- tions with adults. B. The individual fears that he or she will act in a way or show anxiety symptoms that will be negatively evaluated (i.e., will be humiliating or embarrassing; will lead to rejection or offend others). C. The social situations almost always provoke tear or anxiety. Note: In children, the fear or anxiety may be expressed by crying, tantrums, freezing, clinging, shrinking, or failing to speak in social situations. D. The social situations are avoided or endured with intense fear or anxiety. E. The fear or anxiety is out of proportion to the actual threat posed by the social situation and to the sociocultural context. F. The fear, anxiety, or avoidance is persistent, typically lasting for 6 months or more. G. The fear, anxiety, or avoidance causes clinically significant distress or impairment in social, occupational, or other important areas of functioning. H. The fear, anxiety, or avoidance is not attributable to the physiological effects of a sub- stance (e.g., a drug of abuse, a medication) or another medical condition. I. The fear. anxiety, or avoidance is not better explained by the symptoms of another mental disorder, such as panic disorder, body dysmorphic disorder, or autism spectrum disorder. J. If another medical condition (e.g., Parkinson’s disease, obesity, disfigurement from bums or injury) is present, the fear, anxiety, or avoidance is clearly unrelated or is excessive. Specify if:Performance only: If the fear is restricted to speaking or performing in public. Individuals with the performance only type of social anxiety disorder have performance fears that are typically most impairing in their professional lives (e.g., musicians, dancers, performers, athletes) or in roles that require regular public speaking. Performance fears may also manifest in work, school, or academic settings in which regular public presenta- tions are required. Individuals with performance only social anxiety disorder do not fear or avoid nonperformance social situations. The essential feature of social anxiety disorder is a marked, or intense, fear or anxiety of so- cial situations in which the individual may be scrutinized by others. In children the fear or anxiety must occur in peer settings and not just during interactions with adults (Criterion A). When exposed to such social situations, the individual fears that he or she will be neg- atively evaluated. The individual is concerned that he or she will be judged as anxious, weak, crazy, stupid, boring, intimidating, dirty, or unlikable. The individual fears that he or she will act or appear in a certain way or show anxiety symptoms, such as blushing, trembling, sweating, stumbling over one’s words, or staring, that will be negatively eval- uated by others (Criterion B). Some individuals fear offending others or being rejected as a result. Fear of offending others—for example, by a gaze or by showing anxiety symp- toms—may be the predominant fear in individuals from cultures with strong collectivistic orientations. An individual with fear of trembling of the hands may avoid drinking, eat- ing, writing, or pointing in public; an individual with fear of sweating may avoid shaking hands or eating spicy foods; and an individual with fear of blushing may avoid public per- formance, bright lights, or discussion about intimate topics. Some individuals fear and avoid urinating in public restrooms when other individuals are present (i.e., paruresis, or "shy bladder syndrome”). The social situations almost always provoke fear or anxiety (Criterion C). Thus, an in- dividual who becomes anxious only occasionally in the social situation(s) would not be di- agnosed with social anxiety disorder. However, the degree and type of fear and anxiety may vary (e.g., anticipatory anxiety, a panic attack) across different occasions. The antici- patory anxiety may occur sometimes far in advance of upcoming situations (e.g., worrying every day for weeks before attending a social event, repeating a speech for days in advance). In children, the fear or anxiety may be expressed by crying, tantrums, freezing, clinging, or shrinking in social situations. The individual will often avoid the feared social situations. Alternatively, the situations are endured with intense fear or anxiety (Criterion D). Avoid- ance can be extensive (e.g., not going to parties, refusing school) or subtle (e.g., overpre- paring the text of a speech, diverting attention to others, limiting eye contact). The fear or anxiety is judged to be out of proportion to the actual risk of being nega- tively evaluated or to the consequences of such negative evaluation (Criterion E). Some- times, the anxiety may not be judged to be excessive, because it is related to an actual danger (e.g., being bullied or tormented by others). However, individuals with social anx- iety disorder often overestimate the negative consequences of social situations, and thus the judgment of being out of proportion is made by the clinician. The individual’s socio- cultural context needs to be taken into account when this judgment is being made. For ex- ample, in certain cultures, behavior that might otherwise appear socially anxious may be considered appropriate in social situations (e.g., might be seen as a sign of respect). The duration of the disturbance is typically at least 6 months (Criterion F). This dura- tion threshold helps distinguish the disorder from transient social fears that are com— mon, particularly among children and in the community. However, the duration criterion should be used as a general guide, with allowance for some degree of flexibility. The fear, anxiety, and avoidance must interfere significantly with the individual’s normal routine, occupational or academic functioning, or social activities or relationships, or must cause clinically significant distress or impairment in social, occupational, or other important ar- eas of functioning (Criterion G). For example, an individual who is afraid to speak in pub- lic would not receive a diagnosis of social anxiety disorder if this activity is not routinely encountered on the job or in classroom work, and if the individual is not significantly dis- tressed about it. However, if the individual avoids, or is passed over for, the job or educa- tion he or she really wants because of social anxiety symptoms, Criterion G is met. Individuals with social anxiety disorder may be inadequately assertive or excessively sub- missive or, less commonly, highly controlling of the conversation. They may show overly rigid body posture or inadequate eye contact, or speak with an overly soft voice. These in— dividuals may be shy or withdrawn, and they may be less open in conversations and dis- close little about themselves. They may seek employment in jobs that do not require social contact, although this is not the case for individuals with social anxiety disorder, perfor- mance only. They may live at home longer. Men may be delayed in marrying and having a family, Whereas women who would want to work outside the home may live a life as homemaker and mother. Self—medication with substances is common (e.g., drinking be- fore going to a party). Social anxiety among older adults may also include exacerbation of symptoms of medical illnesses, such as increased tremor or tachycardia. Blushing is a hall- mark physical response of social anxiety disorder. The 12-month prevalence estimate of social anxiety disorder for the United States is ap- proximately 7%. Lower 12-month prevalence estimates are seen in much of the world us- ing the same diagnostic instrument, clustering around 0.5%—2.0%,' median prevalence in Europe is 2.3%. The 12-month prevalence rates in children and adolescents are comparable to those in adults. Prevalence rates decrease with age. The 12-month prevalence for older adults ranges from 2% to 5%. In general, higher rates of social anxiety disorder are found in females than in males in the general population (with odds ratios ranging from 1.5 to 2.2), and the gender difference in prevalence is more pronounced in adolescents and young adults. Gender rates are equivalent or slightly higher for males in clinical samples, and it is assumed that gender roles and social expectations play a significant role in ex- plaining the heightened help-seeking behavior in male patients. Prevalence in the United States is higher in American Indians and lower in persons of Asian, Latino, African Amer- ican, and Afro-Caribbean descent compared with non-Hispanic whites. Median age at Onset of social anxiety disorder in the United States is 13 years, and 75% of individuals have an age at onset between 8 and 15 years. The disorder sometimes emerges out of a childhood history of social inhibition or shyness in US. and European studies. On- set can also occur in early childhood. Onset of social anxiety disorder may follow a stress- ful or humiliating experience (e.g., being bullied, vomiting during a public speech), or it may be insidious, developing slowly. First onset in adulthood is relatively rare and is more likely to occur after a stressful or humiliating event or after life changes that require new social roles (e.g., marrying someone from a different social class, receiving a job promo- tion). Social anxiety disorder may diminish after an individual with fear of dating marries and may reemerge after divorce. Among individuals presenting to clinical care, the disor— der tends to be particularly persistent. Adolescents endorse a broader pattern of fear and avoidance, including of dating, compared with younger children. Older adults express social anxiety at lower levels but across a broader range of situations, whereas younger adults express higher levels of so- cial anxiety for specific situations. In older adults, social anxiety may concern disability due to declining sensory functioning (hearing, vision) or embarrassment about one’s ap- pearance (e.g., tremor as a symptom of Parkinson’s disease) or functioning due to medical conditions, incontinence, or cognitive impairment (e.g., forgetting people’s names). In the community approximately 30% of individuals with social anxiety disorder experience re- mission of symptoms within 1 year, and about 50% experience remission within a few years. For approximately 60% of individuals without a specific treatment for social anxiety disorder, the course takes several years or longer. Detection of social anxiety disorder in older adults may be challenging because of sev- eral factors, including a focus on somatic symptoms, comorbid medical illness, limited insight, changes to social environment or roles that may obscure impairment in social functioning, or reticence about describing psychological distress. Temperamental. Underlying traits that predispose individuals to social anxiety disor- der include behavioral inhibition and fear of negative evaluation. Environmental. There is no causative role of increased rates of childhood maltreatment or other early—onset psychosocial adversity in the development of social anxiety disorder. How- ever, childhood maltreatment and adversity are risk factors for social anxiety disorder. Genetic and physiological. Traits predisposing individuals to social anxiety disorder, such as behavioral inhibition, are strongly genetically influenced. The genetic influence is subject to gene-environment interaction; that is, children with high behavioral inhibition are more susceptible to environmental influences, such as socially anxious modeling by parents. Also, social anxiety disorder is heritable (but performance-only anxiety less so). First—degree relatives have a two to six times greater chance of having social anxiety dis- order, and liability to the disorder involves the interplay of disorder-specific (e.g., fear of negative evaluation) and nonspecific (e.g., neuroticism) genetic factors. The syndrome of taijin kyofusho (e.g., in Japan and Korea) is often characterized by social- evaluative concerns, fulfilling criteria for social anxiety disorder, that are associated with the fear that the individual makes other people uncomfortable (e.g., "My gaze upsets peo- ple so they look away and avoid me”), a fear that is at times experienced with delusional intensity. This symptom may also be found in non-Asian settings. Other presentations of taijin kyofusho may fulfill criteria for body dysmorphic disorder or delusional disorder. Immigrant status is associated with significantly lower rates of social anxiety disorder in both Latino and non—Latino white groups. Prevalence rates of social anxiety disorder may not be in line with self—reported social anxiety levels in the same culture—that is, societies with strong collectivistic orientations may report high levels of social anxiety but low prev- alence of social anxiety disorder. Females with social anxiety disorder report a greater number of social fears and comorbid depressive, bipolar, and anxiety disorders, whereas males are more likely to fear dating, have oppositional defiant disorder or conduct disorder, and use alcohol and illicit drugs to relieve symptoms of the disorder. Paruresis is more common in males. Functional Consequences of Social Anxiety DisorderSocial anxiety disorder is associated with elevated rates of school dropout and with de- creased well-being, employment, workplace productivity, socioeconomic status, and quality of life. Social anxiety disorder is also associated with being single, unmarried, or divorced and with not having children, particularly among men. In older adults, there may be impair- ment in caregiving duties and volunteer activities. Social anxiety disorder also impedes lei- sure activities. Despite the extent of distress and social impairment associated with social anxiety disorder, only about half of individuals with the disorder in Western societies ever seek treatment, and they tend to do so only after 15—20 years of experiencing symptoms. Not being employed is a strong predictor for the persistence of social anxiety disorder. Normative shyness. Shyness (i.e., social reticence) is a common personality trait and is not by itself pathological. In some societies, shyness is even evaluated positively. How- ever, when there is a significant adverse impact on social, occupational, and other impor- tant areas of functioning, a diagnosis of social anxiety disorder should be considered, and when full diagnostic criteria for social anxiety disorder are met, the disorder should be di- agnosed. Only a minority (12%) of self—identified shy individuals in the United States have symptoms that meet diagnostic criteria for social anxiety disorder. Agoraphobia. Individuals with agoraphobia may fear and avoid social situations (e.g., go ing to a movie) because escape might be difficult or help might not be available in the event of incapacitation or panic-like symptoms, whereas individuals with social anxiety disorder are most fearful of scrutiny by others. Moreover, individuals with social anxiety disorder are likely to be calm When left entirely alone, which is often not the case in agoraphobia. Panic disorder. Individuals with social anxiety disorder may have panic attacks, but the concern is about fear of negative evaluation, whereas in panic disorder the concern is about the panic attacks themselves. Generalized anxiety disorder. Social worries are common in generalized anxiety disorder, but the focus is more on the nature of ongoing relationships rather than on fear of negative evaluation. Individuals with generalized anxiety disorder, particularly children, may have ex- cessive worries about the quality of their social performance, but these worries also pertain to nonsocial performance and when the individual is not being evaluated by others. In social anx- iety disorder, the worries focus on social performance and others’ evaluation. Separation anxiety disorder. Individuals with separation anxiety disorder may avoid social settings (including school refusal) because of concerns about being separated from attachment figures or, in children, about requiring the presence of a parent when it is not developmentally appropriate. Individuals with separation anxiety disorder are usually comfortable in social settings when their attachment figure is present or when they are at home, whereas those with social anxiety disorder may be uncomfortable when social sit- uations occur at\home or in the presence of attachment figures. Specific phobias. Individuals with specific phobias may fear embarrassment or humil- iation (e.g., embarrassment about fainting when they have their blood drawn), but they do not generally fear negative evaluation in other social situations. Selective mutism. Individuals with selective mutism may fail to speak because of fear of negative evaluation, but they do not fear negative evaluation in social situations where no speaking is required (e.g., nonverbal play). Major depressive disorder. Individuals with major depressive disorder may be con- cerned about being negatively evaluated by others because they feel they are bad or not worthy of being liked. In contrast, individuals with social anxiety disorder are worried about being negatively evaluated because of certain social behaviors or physical symptoms. Body dysmorphic disorder. Individuals with body dysmorphic disorder are preoccu- pied with one or more perceived defects or flaws in their physical appearance that are not observable or appear slight to others; this preoccupation often causes social anxiety and avoidance. If their social fears and avoidance are caused only by their beliefs about their appearance, a separate diagnosis of social anxiety disorder is not warranted. Delusional disorder. Individuals with delusional disorder may have nonbizarre delu- sions and / or hallucinations related to the delusional theme that focus on being rejected by or offending others. Although extent of insight into beliefs about social situations may vary, many individuals with social anxiety disorder have good insight that their beliefs are out of proportion to the actual threat posed by the social situation. Autism spectrum disorder. Social anxiety and social communication deficits are hall- marks of autism spectrum disorder. Individuals with social anxiety disorder typically have adequate age-appropriate social relationships and social communication capacity, although they may appear to have impairment in these areas when first interacting with unfamiliar peers or adults. Personality disorders. Given its frequent onset in childhood and its persistence into and through adulthood, social anxiety disorder may resemble a personality disorder. The most apparent overlap is with avoidant personality disorder. Individuals with avoidant person- ality disorder have a broader avoidance pattern than those with social anxiety disorder. Nonetheless, social anxiety disorder is typically more comorbid with avoidant personality disorder than with other personality disorders, and avoidant personality disorder is more comorbid with social anxiety disorder than with other anxiety disorders. Other mental disorders. Social fears and discomfort can occur as part of schizophrenia, but other evidence for psychotic symptoms is usually present. In individuals with an eat- ing disorder, it is important to determine that fear of negative evaluation about eating disorder symptoms or behaviors (e.g., purging and vomiting) is not the sole source of so- cial anxiety before applying a diagnosis of social anxiety disorder. Similarly, obsessive- compulsive disorder may be associated with social anxiety, but the additional diagnosis of social anxiety disorder is used only when social fears and avoidance are independent of the foci of the obsessions and compulsions. Other medical conditions. Medical conditions may produce symptoms that may be em- barrassing (e.g. trembling in Parkinson’s disease). When the fear of negative evaluation due to other medical conditions is excessive, a diagnosis of social anxiety disorder should be considered. Oppositional defiant disorder. Refusal to speak due to opposition to authority figures should be differentiated from failure to speak due to fear of negative evaluation. Social anxiety disorder is often comorbid with other anxiety disorders, major depressive disorder, and substance use disorders, and the onset of social anxiety disorder generally precedes that of the other disorders, except for specific phobia and separation anxiety dis- order. Chronic social isolation in the course of a social anxiety disorder may result in major depressive disorder. Comorbidity with depression is high also in older adults. Substances may be used as self-medication for social fears, but the symptoms of substance intoxica- tion or withdrawal, such as trembling, may also be a source of (further) social fear. Social anxiety disorder is frequently comorbid with bipolar disorder or body dysmorphic disor- der; for example, an individual has body dysmorphic disorder concerning a preoccupa- tion with a slight irregularity of her nose, as well as social anxiety disorder because of a severe fear of sounding unintelligent. The more generalized form of social anxiety disor- der, but not social anxiety disorder, performance only, is often comorbid with avoidant personality disorder. In children, comorbidities with high-functioning autism and selec- tive mutism are common. Diagnostic Criteria 300.01 (F41.0)A. Recurrent unexpected panic attacks. A panic attack is an abrupt surge of intense fear or intense discomfort that reaches a peak within minutes, and during which time four (or more) of the following symptoms occur: Note: The abrupt surge can occur from a calm state or an anxious state. Palpitations, pounding heart, or accelerated heart rate.Trembling or shaking.Sensations of shortness of breath or smothering.Feelings of choking.Chest pain or discomfort.Nausea or abdominal distress.Feeling dizzy, unsteady. light-headed. or faint.Chills or heat sensations.Paresthesias (numbness or tingling sensations)._ Derealization (feelings of unreality) or depersonalization (being detached from one- self). Fear of losing control or “going crazy.” 13. Fear of dying. Note: Culture-specitic symptoms (e.g., tinnitus, neck soreness, headache, uncontrol- lable screaming or crying) may be seen. Such symptoms should not count as one of the four required symptoms. B. At least one of the attacks has been followed by 1 month (or more) of one or both of the following: 1. Persistent concern or worry about additional panic attacks or their consequences (e.g., losing control, having a heart attack, “going crazy”). 2. A significant maladaptive change in behavior related to the attacks (e.g., behaviors designed to avoid having panic attacks, such as avoidance of exercise or unfamiliar situations). C. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., hyperthyroidism, car- diopulmonary disorders). D. The disturbance is not better explained by another mental disorder (e.g., the panic at- tacks do not occur only in response to feared social situations, as in social anxiety dis- order; in response to circumscribed phobic objects or situations, as in specific phobia; in response to obsessions, as in obsessive-compulsive disorder; in response to re- minders of traumatic events, as in posttraumatic stress disorder; or in response to sep- aration from attachment figures, as in separation anxiety disorder). Panic disorder refers to recurrent unexpected panic attacks (Criterion A). A panic attack is an abrupt surge of intense fear or intense discomfort that reaches a peak within minutes, and during which time four or more of a list of 13 physical and cognitive symptoms occur. The term recurrent literally means more than one unexpected panic attack. The term unex— pected refers to a panic attack for which there is no obvious cue or trigger at the time of oc- currence—that is, the attack appears to occur from out of the blue, such as when the individual is relaxing or emerging from sleep (nocturnal panic attack). In contrast, expected panic attacks are attacks for which there is an obvious cue or trigger, such as a situation in which panic attacks typically occur. The determination of whether panic attacks are ex- pected or unexpected is made by the clinician, who makes this judgment based on a com- bination of careful questioning as to the sequence of events preceding or leading up to the attack and the individual’s own judgment of whether or not the attack seemed to occur for no apparent reason. Cultural interpretations may influence the assignment of panic at- tacks as expected or unexpected (see section ”Culture-Related Diagnostic Issues" for this disorder). In the United States and Europe, approximately one-half of individuals with panic disorder have expected panic attacks as well as unexpected panic attacks. Thus, the presence of expected panic attacks does not rule out the diagnosis of panic disorder. For more details regarding expected versus unexpected panic attacks, see the text accompa- nying panic attacks (pp. 214—217). The frequency and severity of panic attacks vary widely. In terms of frequency, there may be moderately frequent attacks (e.g., one per week) for months at a time, or short bursts of more frequent attacks (e.g., daily) separated by weeks or months without any at- tacks or with less frequent attacks (e.g., two per month) over many years. Persons who have infrequent panic attacks resemble persons with more frequent panic attacks in terms of panic attack symptoms, demographic characteristics, comorbidity with other disorders, family history, and biological data. In terms of severity, individuals with panic disorder four symptoms) attacks, and the number and type of panic attack symptoms frequently differ from one panic attack to the next. However, more than one unexpected full—symp- tom panic attack is required for the diagnosis of panic disorder. The worries about panic attacks or their consequences usually pertain to physical con- cerns, such as worry that panic attacks reflect the presence of life-threatening illnesses (e.g., cardiac disease, seizure disorder); social concerns, such as embarrassment or fear of being judged negatively by others because of visible panic symptoms; and concerns about mental functioning, such as "going crazy" or losing control (Criterion B). The maladaptive changes in behavior represent attempts to minimize or avoid panic attacks or their conse- quences. Examples include avoiding physical exertion, reorganizing daily life to ensure that help is available in the event of a panic attack, restricting usual daily activities, and avoiding agoraphobia-type situations, such as leaving home, using public transportation, or shopping. If agoraphobia is present, a separate diagnosis of agoraphobia is given. One type of unexpected panic attack is a nocturnal panic attack (i.e., waking from sleep in a state of panic, which differs from panicking after fully waking from sleep). In the United States, this type of panic attack has been estimated to occur at least one time in roughly one-quarter to one-third of individuals with panic disorder, of whom the majority also have daytime panic attacks. In addition to worry about panic attacks and their conse- quences, many individuals with panic disorder report constant or intermittent feelings of anxiety that are more broadly related to health and mental health concerns. For example, individuals with panic disorder often anticipate a catastrophic outcome from a mild phys- ical symptom or medication side effect (e.g., thinking that they may have heart disease or that a headache means presence of a brain tumor). Such individuals often are relatively in- tolerant of medication side effects. In addition, there may be pervasive concerns about abilities to complete daily tasks or withstand daily stressors, excessive use of drugs (e.g., alcohol, prescribed medications or illicit drugs) to control panic attacks, or extreme behav- iors aimed at controlling panic attacks (e.g., severe restrictions on food intake or avoidance of specific foods or medications because of concerns about physical symptoms that pro- voke panic attacks). In the general population, the 12-month prevalence estimate for panic disorder across the United States and several European countries is about 2%—3% in adults and adolescents. In the United States, significantly lower rates of panic disorder are reported among Latinos, African Americans, Caribbean blacks, and Asian Americans, compared with non-Latino whites; American Indians, by contrast, have significantly higher rates. Lower estimates have been reported for Asian, African, and Latin American countries, ranging from 0.1% to 0.8%. Females are more frequently affected than males, at a rate of approximately 2:1. The gender differentiation occurs in adolescence and is already observable before age 14 years. Although panic attacks occur in children, the overall prevalence of panic disorder is low before age 14 years (<0.4%). The rates of panic disorder show a gradual increase during ad- olescence, particularly in females, and possibly following the onset of puberty, and peak dur- ing adulthood. The prevalence rates decline in older individuals (i.e., 0.7% in adults over the age of 64), possibly reflecting diminishing severity to subclinical levels. The median age at onset for panic disorder in the United States is 20—24 years. A small number of cases begin in childhood, and onset after age 45 years is unusual but can occur. The usual course, if the disorder is untreated, is chronic but waxing and waning. Some in- dividuals may have episodic outbreaks with years of remission in between, and others may have continuous severe symptomatology. Only a minority of individuals have full remission without subsequent relapse within a few years. The course of panic disorder typically is complicated by a range of other disorders, in particular other anxiety disor- ders, depressive disorders, and substance use disorders (see section ”Comorbidity" for this disorder). Although panic disorder is very rare in childhood, first occurrence of "fearful spells" is often dated retrospectively back to childhood. As in adults, panic disorder in adolescents tends to have a chronic course and is frequently comorbid with other anxiety, depressive, and bipolar disorders. To date, no differences in the clinical presentation between adoles- cents and adults have been found. However, adolescents may be less worried about addi- tional panic attacks than are young adults. Lower prevalence of panic disorder in older adults appears to be attributable to age-related ”dampening” of the autonomic nervous system response. Many older individuals with "panicky feelings" are observed to have a ”hybrid” of limited-symptom panic attacks and generalized anxiety. Also, older adults tend to attribute their panic attacks to certain stressful situations, such as a medical pro- cedure or social setting. Older individuals may retrospectively endorse explanations for the panic attack\(which would preclude the diagnosis of panic disorder), even if an attack might actually have been unexpected in the moment (and thus qualify as the basis for a panic disorder diagnosis). This may result in under-endorsement of unexpected panic at- tacks in older individuals. Thus, careful questioning of older adults is required to assess whether panic attacks were expected before entering the situation, so that unexpected panic attacks and the diagnosis of panic disorder are not overlooked. While the low rate of panic disorder in children could relate to difficulties in symptom reporting, this seems unlikely given that children are capable of reporting intense fear or panic in relation to separation and to phobic objects or phobic situations. Adolescents might be less willing than adults to openly discuss panic attacks. Therefore, clinicians should be aware that unexpected panic attacks do occur in adolescents, much as they do in adults, and be attuned to this possibility when encountering adolescents presenting with episodes of intense fear or distress. Temperamental. Negative affectivity (neuroticism) (i.e., proneness to experiencing neg- ative emotions) and anxiety sensitivity (i.e., the disposition to believe that symptoms of anxiety are harmful) are risk factors for the onset of panic attacks and, separately, for worry about panic, although their risk status for the diagnosis of panic disorder is un- known. History of "fearful spells" (i.e., limited-symptom attacks that do not meet full cri- teria for a panic attack) may be a risk factor for later panic attacks and panic disorder. Although separation anxiety in childhood, especially when severe, may precede the later development of panic disorder, it is not a consistent risk factor. Environmental. Reports of childhood experiences of sexual and physical abuse are more common in panic disorder than in certain other anxiety disorders. Smoking is a risk factor for panic attacks and panic disorder. Most individuals report identifiable stressors in the months before their first panic attack (e.g., interpersonal stressors and stressors related to physical well-being, such as negative experiences with illicit or prescription drugs, dis- ease, or death in the family). Genetic and physiological. It is believed that multiple genes confer vulnerability to panic disorder. However, the exact genes, gene products, or functions related to the genetic re- gions implicated remain unknown. Current neural systems models for panic disorder em— phasize the amygdala and related structures, much as in other anxiety disorders. There is an increased risk for panic disorder among offspring of parents with anxiety, depressive, and bipolar disorders. Respiratory disturbance, such as asthma, is associated with panic disorder, in terms of past history, comorbidity, and family history. The rate of fears about mental and somatic symptoms of anxiety appears to vary across cultures and may influence the rate of panic attacks and panic disorder. Also, cultural ex- pectations may influence the classification of panic attacks as expected or unexpected. For example, a Vietnamese individual who has a panic attack after walking out into a windy environment (tru’ng gié; ”hit by the wind") may attribute the panic attack to exposure to wind as a result of the cultural syndrome that links these two experiences, resulting in clas- sification of the panic attack as expected. Various other cultural syndromes are associated with panic disorder, including ataque de nervios (”attack of nerves”) among Latin Ameri- cans and khyfil attacks and ”soul loss” among Cambodians. Atuque de nervios may involve trembling, uncontrollable screaming or crying, aggressive or suicidal behavior, and deper- sonalization or derealization, which may be experienced longer than the few minutes typical of panic attacks. Some clinical presentations of utaque de nervios fulfill criteria for condi- tions other than panic attack (e.g., other specified dissociative disorder). These syndromes impact the symptoms and frequency of panic disorder, including the individual’s attribu- tion of unexpectedness, as cultural syndromes may create fear of certain situations, rang- ing from interpersonal arguments (associated with ataque de nervias), to types of exertion (associated with khyril attacks), to atmospheric wind (associated with trting gié attacks). Clarification of the details of cultural attributions may aid in distinguishing expected and unexpected panic attacks. For more information regarding cultural syndromes, refer to the ”Glossary of Cultural Concepts of Distress" in the Appendix. The specific worries about panic attacks or their consequences are likely to vary from one culture to another (and across different age groups and gender). For panic disorder, U.S. community samples of non—Latino whites have significantly less functional impair- ment than African Americans. There are also higher rates of objectively defined severity in non—Latino Caribbean blacks with panic disorder, and lower rates of panic disorder over- all in both African American and Afro—Caribbean groups, suggesting that among individ- uals of African descent, the criteria for panic disorder may be met only when there is substantial severity and impairment. The clinical features of panic disorder do not appear to differ between males and females. There is some evidence for sexual dimorphism, with an association between panic disor- der and the catechol-O-methyltransferase (COMT) gene in females only. Agents with disparate mechanisms of action, such as sodium lactate, caffeine, isoprotere- nol, yohimbine, carbon dioxide, and cholecystokinin, provoke panic attacks in individuals with panic disorder to a much greater extent than in healthy control subjects (and in some cases, than in individuals with other anxiety, depressive, or bipolar disorders without panic attacks). Also, for a proportion of individuals with panic disorder, panic attacks are related to hypersensitive medullary carbon dioxide detectors, resulting in hypocapnia and other respiratory irregularities. However, none of these laboratory findings are consid— ered diagnostic of panic disorder. Panic attacks and a diagnosis of panic disorder in the past 12 months are related to a higher rate of suicide attempts and. suicidal ideation in the past 12 months even when comorbid— ity and a history of childhood abuse and other suicide risk factors are taken into account. Functional Consequences of Panic DisorderPanic disorder is associated with high levels of social, occupational, and physical disabil- ity; considerable economic costs; and the highest number of medical visits among the anx- iety disorders, although the effects are strongest with the presence of agoraphobia. Individuals with panic disorder may be frequently absent from work or school for doctor and emergency room visits, which can lead to unemployment or dropping out of school. In older adults, impairment may be seen in caregiving duties or volunteer activities. Full- symptom panic attacks typically are associated with greater morbidity (e.g., greater health care utilization, more disability, poorer quality of life) than limited-symptom attacks. Other specified anxiety disorder or unspecified anxiety disorder. Panic disorder should not be diagnosed if full-symptom (unexpected) panic attacks have never been experienced. In the case of only limited—symptom unexpected panic attacks, an other specified anxiety dis- order or unspecified anxiety disorder diagnosis should be considered. Anxiety disorder due to another medical condition. Panic disorder is not diagnosed if the panic attacks are judged to be a direct physiological consequence of another medical condition. Examples of medical conditions that can cause panic attacks include hyperthy- roidism, hyperparathyroidism, pheochromocytoma, vestibular dysfunctions, seizure dis- orders, and cardiopulmonary conditions (e.g., arrhythmias, supraventricular tachycardia, asthma, chronic obstructive pulmonary disease [COPD]). Appropriate laboratory tests (e.g., serum calcium levels for hyperparathyroidism; Holter monitor for arrhythmias) or physical examinations (e.g., for cardiac conditions) may be helpful in determining the eti- ological role of another medical condition. Substance/medication-induced anxiety disorder. Panic disorder is not diagnosed if the panic attacks are judged to be a direct physiological consequence of a substance. In- toxication with central nervous system stimulants (e.g., cocaine, amphetamines, caffeine) or cannabis and withdrawal from central nervous system depressants (e.g., alcohol, bar- biturates) can precipitate a panic attack. However, if panic attacks continue to occur out- side of the context of substance use (e.g., long after the effects of intoxication or withdrawal have ended), a diagnosis of panic disorder should be considered. In addition, because with increased substance use, especially for purposes of self—medication, a detailed history should be taken to determine if the individual had panic attacks prior to excessive sub- stance use. If this is the case, a diagnosis of panic disorder should be considered in addition to a diagnosis of substance use disorder. Features such as onset after age 45 years or the presence of atypical symptoms during a panic attack (e.g., vertigo, loss of consciousness, loss of bladder or bowel control, slurred speech, amnesia) suggest the possibility that an- other medical condition or a substance may be causing the panic attack symptoms. Other mental disorders with panic attacks as an associated feature (e.g., other anxiety disorders and psychotic disorders). Panic attacks that occur as a symptom of other anx- iety disorders are expected (e.g., triggered by social situations in social anxiety disorder, by phobic objects or situations in specific phobia or agoraphobia, by worry in generalized anx- iety disorder, by separation from home or attachment figures in separation anxiety disorder) and thus would not meet criteria for panic disorder. (Note: Sometimes an unexpected panic attack is associated with the onset of another anxiety disorder, but then the attacks become expected, whereas panic disorder is characterized by recurrent unexpected panic attacks.) If the panic attacks occur only in response to specific triggers, then only the relevant anxiety disorder is assigned. However, if the individual experiences unexpected panic attacks as well and shows persistent concern and worry or behavioral change because of the attacks, then an additional diagnosis of panic disorder should be considered. Panic disorder infrequently occurs in clinical settings in the absence of other psychopa- thology. The prevalence of panic disorder is elevated in individuals with other disorders, particularly other anxiety disorders (and especially agoraphobia), major depression, bipo- lar disorder, and possibly mild alcohol use disorder. While panic disorder often has an ear- lier age at onset than the comorbid disorder(s), onset sometimes occurs after the comorbid disorder and may be seen as a severity marker of the comorbid illness. Reported lifetime rates of comorbidity between major depressive disorder and panic disorder vary widely, ranging from 10% to 65% in individuals with panic disorder. In ap- proximately one-third of individuals with both disorders, the depression precedes the on— set of panic disorder. In the remaining two-thirds, depression occurs coincident with or following the onset of panic disorder. A subset of individuals with panic disorder develop a substance-related disorder, which for some represents an attempt to treat their anxiety with alcohol or medications. Comorbidity with other anxiety disorders and illness anxiety disorder is also common. Panic disorder is significantly comorbid with numerous general medical symptoms and conditions, including, but not limited to, dizziness, cardiac arrhythmias, hyperthy- roidism, asthma, COPD, and irritable bowel syndrome. However, the nature of the asso- ciation (e.g., cause and effect) between panic disorder and these conditions remains unclear. Although mitral valve prolapse and thyroid disease are more common among in- dividuals with panic disorder than in the general population, the differences in prevalence are not consistent. Note: Symptoms are presented for the purpose of identifying a panic attack; however, panic attack is not a mental disorder and cannot be coded. Panic attacks can occur in the context of any anxiety disorder as well as other mental disorders (e.g., depressive disor- ders, posttraumatic stress disorder, substance use disorders) and some medical condi- tions (e.g., cardiac, respiratory, vestibular, gastrointestinal). When the presence of a panic attack is identified, it should be noted as a specifier (e.g., “posttraumatic stress disorder with panic attacks”). For panic disorder, the presence of panic attack is contained within the criteria for the disorder and panic attack is not used as a specifier. An abrupt surge of intense fear or intense discomfort that reaches a peak within minutes, and during which time four (or more) of the following symptoms occur: Note: The abrupt surge can occur from a calm state or an anxious state. 1. Palpitations, pounding heart, or accelerated heart rate.2. Sweating.3. Trembling or shaking.4. Sensations of shortness of breath or smothering.5. Feelings of choking.6. Chest pain or discomfort.7. Nausea or abdominal distress.8. Feeling dizzy, unsteady, light-headed, or taint.9. Chilis or heat sensations.10. Paresthesias (numbness or tingling sensations).11. Derealization (feelings of unreality) or depersonalization (being detached from oneself). 12. Fear of losing control or "going crazy.” 13. Fear of dying. Note: Culture—specific symptoms (e.g., tinnitus, neck soreness, headache, uncontrollable screaming or crying) may be seen. Such symptoms should not count as one of the four required symptoms. The essential feature of a panic attack is an abrupt surge of intense fear or intense discomfort that reaches a peak within minutes and during which time four or more of 13 physical and cog- nitive symptoms occur. Eleven of these 13 symptoms are physical (e.g., palpitations, sweat- ing), while two are cognitive (i.e., fear of losing control or going crazy, fear of dying). ”Fear of going crazy” is a colloquialism often used by individuals with panic attacks and is not in- tended as a pejorative or diagnostic term. The term within minutes means that the time to peak intensity is literally only a few minutes. A panic attack can arise from either a calm state or an anxious state, and time to peak intensity should be assessed independently of any preceding anxiety. That is, the start of the panic attack is the point at which there is an abrupt increase in discomfort rather than the point at which anxiety first developed. Likewise, a panic attack can return to either an anxious state or a calm state and possibly peak again. A panic attack is dis- tinguished from ongoing anxiety by its time to peak intensity, which occurs within minutes; its discrete nature; and its typically greater severity. Attacks that meet all other criteria but have fewer than four physical and / or cognitive symptoms are referred to as limited—symptom attacks. There are two characteristic types of panic attacks: expected and unexpected. Expected panic attacks are attacks for which there is an obvious cue or trigger, such as situations in which panic attacks have typically occurred. Unexpected panic attacks are those for which there is no obvious cue or trigger at the time of occurrence (e.g., when relaxing or out of sleep [nocturnal panic attack]). The determination of whether panic attacks are expected or unexpected is made by the clinician, who makes this judgment based on a combination of careful questioning as to the sequence of events preceding or leading up to the attack and the individual’s own judgment of whether or not the attack seemed to occur for no ap- parent reason. Cultural interpretations may influence their determination as expected or unexpected. Culture-specific symptoms (e.g., tinnitus, neck soreness, headache, uncon- trollable screaming or crying) may be seen; however, such symptoms should not count as one of the four required symptoms. Panic attacks can occur in the context of any mental disorder (e.g., anxiety disorders, depressive disorders, bipolar disorders, eating disorders, obsessive-compulsive and related disorders, personality disorders, psychotic disorders, substance use disorders) and some medical conditions (e.g., cardiac, respiratory, vestibu- lar, gastrointestinal), with the majority never meeting criteria for panic disorder. Recur- rent unexpected panic attacks are required for a diagnosis of panic disorder. One type of unexpected panic attack is a nocturnal panic attack (i.e., waking from sleep in a state of panic), which differs from panicking after fully waking from sleep. Panic attacks are related to a higher rate of suicide attempts and suicidal ideation even when comorbid- ity and other suicide risk factors are taken into account. In the general population, 12-month prevalence estimates for panic attacks in the United States is 11.2% in adults. Twelve-month prevalence estimates do not appear to differ sig- nificantly among African Americans, Asian Americans, and Latinos. Lower 12-month prevalence estimates for European countries appear to range from 2.7% to 3.3%. Females are more frequently affected than males, although this gender difference is more pro- nounced for panic disorder. Panic attacks can occur in children but are relatively rare until the age of puberty, when the prevalence rates increase. The prevalence rates decline in older individuals, possibly reflecting diminishing severity to subclinical levels. The mean age at onset for panic attacks in the United States is approximately 22—23 years among adults. However, the course of panic attacks is likely influenced by the course of any co-occurring mental disorder(s) and stressful life events. Panic attacks are uncommon, and unexpected panic attacks are rare, in preadolescent children. Adolescents might be less willing than adults to openly discuss panic attacks, even though they present with ep- isodes of intense fear or discomfort. Lower prevalence of panic attacks in older individuals may be related to a weaker autonomic response to emotional states relative to younger in- dividuals. Older individuals may be less inclined to use the word ”fear” and more inclined to use the word ”discomfort” to describe panic attacks. Older individuals with ”panicky feelings” may have a hybrid of limited-symptom attacks and generalized anxiety. In addition, older individuals tend to attribute panic attacks to certain situations that are stressful (e.g., medical procedures, social settings) and may retrospectively endorse expla- nations for the panic attack even if it was unexpected in the moment. This may result in un- der-endorsement of unexpected panic attacks in older individuals. Temperamental. Negative affectivity (neuroticism) (i.e., proneness to experiencing neg- ative emotions) and anxiety sensitivity (i.e., the disposition to believe that symptoms of anxiety are harmful) are risk factors for the onset of panic attacks. History of "fearful spells” (i.e., limited-symptom attacks that do not meet full criteria for a panic attack) may be a risk factor for later panic attacks. Environmental. Smoking is a risk factor for panic attacks. Most individuals report iden- tifiable stressors in the months before their first panic attack (e.g., interpersonal stressors and stressors related to physical well-being, such as negative experiences with illicit or prescription drugs, disease, or death in the family). Cultural interpretations may influence the determination of panic attacks as expected or unexpected. Culture-specific symptoms (e.g., tinnitus, neck soreness, headache, and un- controllable screaming or crying) may be seen; however, such symptoms should not count as one of the four required symptoms. Frequency of each of the 13 symptoms varies cross- culturally (e.g., higher rates of paresthesias in African Americans and of dizziness in sev- eral Asian groups). Cultural syndromes also influence the cross-cultural presentation of panic attacks, resulting in different symptom profiles across different cultural groups. Ex- amples include khyfil (wind) attacks, a Cambodian cultural syndrome involving dizziness, tinnitus, and neck soreness; and triing gié (wind-related) attacks, a Vietnamese cultural syndrome associated with headaches. Ataque de nervios (attack of nerves) is a cultural syn- drome among Latin Americans that may involve trembling, uncontrollable screaming or crying, aggressive or suicidal behavior, and depersonalization or derealization, and which may be experienced for longer than only a few minutes. Some clinical presentations of ataque de nervios fulfill criteria for conditions other than panic attack (e.g., other specified dissociative disorder). Also, cultural expectations may influence the classification of panic attacks as expected or unexpected, as cultural syndromes may create fear of certain situa- tions, ranging from interpersonal arguments (associated with atuque de nervios), to types of exertion (associated with khyfil attacks), to atmospheric wind (associated with tning gié at- tacks). Clarification of the details of cultural attributions may aid in distinguishing ex- pected and unexpected panic attacks. For more information about cultural syndromes, see ”Glossary of Cultural Concepts of Distress" in the Appendix to this manual. Panic attacks are more common in females than in males, but clinical features or symp- toms of panic attacks do not differ between males and females. Physiological recordings of naturally occurring panic attacks in individuals with panic disorder indicate abrupt surges of arousal, usually of heart rate, that reach a peak within minutes and subside within minutes, and for a proportion of these individuals the panic attack may be preceded by cardiorespiratory instabilities. Functional Consequences of Panic AttacksIn the context of\co-occurring mental disorders, including anxiety disorders, depressive disorders, bipolar disorder, substance use disorders, psychotic disorders, and personality disorders, panic attacks are associated with increased symptom severity, higher rates of comorbidity and suicidality, and poorer treatment response. Also, full-symptom panic at- tacks typically are associated with greater morbidity (e.g., greater health care utilization, more disability, poorer quality of life) than limited—symptom attacks. Other paroxysmal episodes (e.g., “anger attacks”). Panic attacks should not be diag- nosed if the episodes do not involve the essential feature of an abrupt surge of intense fear or intense discomfort, but rather other emotional states (e.g., anger, grief). Anxiety disorder due to another medical condition. Medical conditions that can cause or be misdiagnosed as panic attacks include hyperthyroidism, hyperparathyroidism, pheo- chromocytoma, vestibular dysfunctions, seizure disorders, and cardiopulmonary con- ditions (e.g., arrhythmias, supraventricular tachycardia, asthma, chronic obstructive pulmonary disease). Appropriate laboratory tests (e.g., serum calcium levels for hyperpara- thyroidism; Holter monitor for arrhythmias) or physical examinations (e.g., for cardiac con- ditions) may be helpful in determining the etiological role of another medical condition. Substance/medication-induced anxiety disorder. Intoxication with central nervous system stimulants (e.g., cocaine, amphetamines, caffeine) or cannabis and withdrawal from central nervous system depressants (e.g., alcohol, barbiturates) can precipitate a panic attack. A detailed history should be taken to determine if the individual had panic attacks prior to excessive substance use. Features such as onset after age 45 years or the presence of atypical symptoms during a panic attack (e.g., vertigo, loss of consciousness, loss of bladder or bowel control, slurred speech, or amnesia) suggest the possibility that a medical condition or a substance may be causing the panic attack symptoms. Panic disorder. Repeated unexpected panic attacks are required but are not sufficient for the diagnosis of panic disorder (i.e., full diagnostic criteria for panic disorder must be met). Panic attacks are associated with increased likelihood of various comorbid mental dis- orders, including anxiety disorders, depressive disorders, bipolar disorders, impulse- control disorders, and substance use disorders. Panic attacks are associated with increased likelihood of later developing anxiety disorders, depressive disorders, bipolar disorders, and possibly other disorders. Diagnostic Criteria 300.22 (F40.00)A. Marked tear or anxiety about two (or more) of the following five situations: Using public transportation (e.g., automobiles, buses, trains, ships, planes).Being in open spaces (e.g., parking lots, marketplaces, bridges).Being in enclosed places (e.g., shops, theaters, cinemas).Standing in line or being in a crowd.5. Being outside of the home alone.B. The individual tears or avoids these situations because of thoughts that escape might be difficult or help might not be available in the event of developing panic-like symp- toms or other incapacitating or embarrassing symptoms (e.g., fear of falling in the el- derly; fear of incontinence). C. The agoraphobic situations almost always provoke fear or anxiety. D. The agoraphobic situations are actively avoided, require the presence of a companion, or are endured with intense tear or anxiety. E. The fear or anxiety is out of proportion to the actual danger posed by the agoraphobic situations and to the sociocultural context. F. The fear, anxiety, or avoidance is persistent, typically lasting for 6 months or more. G. The fear, anxiety. or avoidance causes clinically significant distress or impairment in social, occupational, or other important areas of functioning. H. If another medical condition (e.g., inflammatory bowel disease, Parkinson’s disease) is present, the fear, anxiety, or avoidance is clearly excessive. l. The fear, anxiety, or avoidance is not better explained by the symptoms of another men- tal disorder—for example, the symptoms are not confined to specific phobia, situational type; do not involve only social situations (as in social anxiety disorder); and are not re- lated exclusively to obsessions (as in obsessive-compulsive disorder), perceived defects or flaws in physical appearance (as in body dysmorphic disorder), reminders of traumatic events (as in posttraumatic stress disorder), or fear of separation (as in separation anx- iety disorder). Note: Agoraphobia is diagnosed irrespective of the presence of panic disorder. If an indi- vidual’s presentation meets criteria for panic disorder and agoraphobia, both diagnoses should be assigned. The essential feature of agoraphobia is marked, or intense, fear or anxiety triggered by the real or anticipated exposure to a wide range of situations (Criterion A). The diagnosis re- quires endorsement of symptoms occurring in at least two of the following five situations: 1) using public transporation, such as automobiles, buses, trains, ships, or planes; 2) being in open spaces, such as parking lots, marketplaces, or bridges; 3) being in enclosed spaces, such as shops, theaters, or cinemas; 4) standing in line or being in a crowd; or 5) being out- side of the home alone. The examples for each situation are not exhaustive; other situations may be feared. When experiencing fear and anxiety cued by such situations, individuals typically experience thoughts that something terrible might happen (Criterion B). Individ- uals frequently believe that escape from such situations might be difficult (e.g., ”can’t get out of here”) or that help might be unavailable (e.g., ”there is nobody to help me") when panic-like symptoms or other incapacitating or embarrassing symptoms occur. ”Panic-like symptoms” refer to any of the 13 symptoms included in the criteria for panic attack, such as dizziness, faintness, and fear of dying. “Other incapacitating or embarrassing symptoms” include symptoms such as vomiting and inflammatory bowel symptoms, as well as, in older adults, a fear of falling or, in children, a sense of disorientation and getting lost. The amount of fear experienced may vary with proximity to the feared situation and may occur in anticipation of or in the actual presence of the agoraphobic situation. Also, the fear or anxiety may take the form of a full— or limited-symptom panic attack (i.e., an ex- pected panic attack). Fear or anxiety is evoked nearly every time the individual comes into contact with the feared situation (Criterion C). Thus, an individual who becomes anxious only occasionally in an agoraphobic situation (e.g., becomes anxious when standing in line on only one out of every five occasions) would not be diagnosed with agoraphobia. The in- dividual actively avoids the situation or, if he or she either is unable or decides not to avoid it, the situation evokes intense fear or anxiety (Criterion D). Active avoidance means the in- dividual is currently behaving in ways that are intentionally designed to prevent or min- imize contact with agoraphobic situations. Avoidance can be behavioral (e.g., changing daily routines, choosing a job nearby to avoid using public transportation, arranging for food delivery to avoid entering shops and supermarkets) as well as cognitive (e.g., using distraction to getthrough agoraphobic situations) in nature. The avoidance can become so severe that the person is completely homebound. Often, an individual is better able to con- front a feared situation when accompanied by a companion, such as a partner, friend, or health professional. The fear, anxiety, or avoidance must be out of proportion to the actual danger posed by the agoraphobic situations and to the sociocultural context (Criterion E). Differentiating clinically significant agoraphobic fears from reasonable fears (e.g., leaving the house dur- ing a bad storm) or from situations that are deemed dangerous (e.g., walking in a parking lot or using public transportation in a high-crime area) is important for a number of reasons. First, what constitutes avoidance may be difficult to judge across cultures and sociocultural contexts (e.g., it is socioculturally appropriate for orthodox Muslim women in certain parts of the world to avoid leaving the house alone, and thus such avoidance would not be con- sidered indicative of agoraphobia). Second, older adults are likely to overattribute their fears to age—related constraints and are less likely to judge their fears as being out of pro- portion to the actual risk. Third, individuals with agoraphobia are likely to overestimate danger in relation to panic-like or other bodily symptoms. Agoraphobia should be diag- nosed only if the fear, anxiety, or avoidance persists (Criterion F) and if it causes clinically significant distress or impairment in social, occupational, or other important areas of func- tioning (Criterion G). The duration of "typically lasting for 6 months or more“ is meant to exclude individuals with short-lived, transient problems. However, the duration criterion should be used as a general guide, with allowance for some degree of flexibility. In its most severe forms, agoraphobia can cause individuals to become completely home- bound, unable to leave their home and dependent on others for services or assistance to pro- vide even for basic needs. Demoralization and depressive symptoms, as well as abuse of alcohol and sedative medication as inappropriate self-medication strategies, are common. Every year approximately 1.7% of adolescents and adults have a diagnosis of agoraphobia. Females are twice as likely as males to experience agoraphobia. Agoraphobia may occur in childhood, but incidence peaks in late adolescence and early adulthood. Twelve-month prevalence in individuals older than 65 years is 0.4%. Prevalence rates do not appear to vary systematically across cultural/racial groups. The percentage of individuals with agoraphobia reporting panic attacks or panic disorder preceding the onset of agoraphobia ranges from 30% in community samples to more than 50% in clinic samples. The majority of individuals with panic disorder show signs of anx- iety and agoraphobia before the onset of panic disorder. In two-thirds of all cases of agoraphobia, initial onset is before age 35 years. There is a substantial incidence risk in late adolescence and early adulthood, with indications for a second high incidence risk phase after age 40 years. First onset in childhood is rare. The overall mean age at onset for agoraphobia is 17 years, although the age at onset without preceding panic attacks or panic disorder is 25—29 years. The course of agoraphobia is typically persistent and chronic. Complete remission is rare (10%), unless the agoraphobia is treated. With more severe agoraphobia, rates of full remission decrease, whereas rates of relapse and chronicity increase. A range of other dis- orders, in particular other anxiety disorders, depressive disorders, substance use disor- ders, and personality disorders, may complicate the course of agoraphobia. The long-term course and outcome of agoraphobia are associated with substantially elevated risk of sec- ondary major depressive disorder, persistent depressive disorder (dysthymia), and sub- stance use disorders. The clinical features of agoraphobia are relatively consistent across the lifespan, although the type of agoraphobic situations triggering fear, anxiety, or avoidance, as well as the type of cognitions, may vary. For example, in children, being outside of the home alone is the most fre- quent situation feared, whereas in older adults, being in shops, standing in line, and being in open spaces are most often feared. Also, cognitions often pertain to becoming lost (in children), to experiencing panic-like symptoms (in adults), to falling (in older adults). The low prevalence of agoraphobia in children could reflect difficulties in symptom re— porting, and thus assessments in young children may require solicitation of information from multiple sources, including parents or teachers. Adolescents, particularly males, may be less willing than adults to openly discuss agoraphobic fears and avoidance; how- ever, agoraphobia can occur prior to adulthood and should be assessed in children and adolescents. In older adults, comorbid somatic symptom disorders, as well as motor dis- turbances (e.g., sense of falling or having medical complications), are frequently men- tioned by individuals as the reason for their fear and avoidance. In these instances, care is to be taken in evaluating whether the fear and avoidance are out of proportion to the real danger involved. Temperamental. Behavioral inhibition and neurotic disposition (i.e., negative affectivity [neuroticism] and anxiety sensitivity) are closely associated with agoraphobia but are rel- evant to most anxiety disorders (phobic disorders, panic disorder, generalized anxiety dis- order). Anxiety sensitivity (the disposition to believe that symptoms of anxiety are harmful) is also characteristic of individuals with agoraphobia. Environmental. Negative events in childhood (e.g., separation, death of parent) and other stressful events, such as being attacked or mugged, are associated with the onset of agorapho- bia. Furthermore, individuals with agoraphobia describe the family climate and child-rearing behavior as being characterized by reduced warmth and increased overprotection. Genetic and physiological. Heritability for agoraphobia is 61%. Of the various phobias, agoraphobia has the strongest and most specific association with the genetic factor that represents proneness to phobias. Females have different patterns of comorbid disorders than males. Consistent with gender differences in the prevalence of mental disorders, males have higher rates of comorbid substance use disorders. Functional Consequences of AgoraphobiaAgoraphobia is associated with considerable impairment and disability in terms of role functioning, work productivity, and disability days. Agoraphobia severity is a strong de- terminant of the degree of disability, irrespective of the presence of comorbid panic disor- der, panic attacks, and other comorbid conditions. More than one-third of individuals with agoraphobia are completely homebound and unable to work. When diagnostic criteria for agoraphobia and another disorder are fully met, both diagnoses should be assigned, unless the fear, anxiety, or avoidance of agoraphobia is attributable to the other disorder. Weighting of criteria and clinical judgment may be helpful in some cases. Specific phobia, situational type. Differentiating agoraphobia from situational specific phobia can be challenging in some cases, because these conditions share several symptom characteristics and criteria. Specific phobia, situational type, should be diagnosed versus ago- raphobia if the fear, anxiety, or avoidance is limited to one of the agoraphobic situations. Requiring fears from two or more of the agoraphobic situations is a robust means for differen- tiating agoraphobia from specific phobias, particularly the situational subtype. Additional dif- ferentiating features include the cognitive ideation. Thus, if the situation is feared for reasons other than panic-like symptoms or other incapacitating or embarrassing symptoms (e.g., fears of being directly harmed by the situation itself, such as fear of the plane crashing for individ- uals who fear flying), then a diagnosis of specific phobia may be more appropriate. Separation anxiety disorder. Separation anxiety disorder can be best differentiated from agoraphobia by examining cognitive ideation. In separation anxiety disorder, the thoughts are about detachment from significant others and the home environment (i.e., parents or other attachment figures), whereas in agoraphobia the focus is on panic-like symptoms or other incapacitating or embarrassing symptoms in the feared situations. Social anxiety disorder (social phobia). Agoraphobia should be differentiated from so- cial anxiety disorder based primarily on the situational clusters that trigger fear, anxiety, or avoidance and the cognitive ideation. In social anxiety disorder, the focus is on fear of being negatively evaluated. Panic disorder. When criteria for panic disorder are met, agoraphobia should not be di— agnosed if the avoidance behaviors associated with the panic attacks do not extend to avoid- ance of two or more agoraphobic situations. Acute stress disorder and posttraumatic stress disorder. Acute stress disorder and ing whether the fear, anxiety, or avoidance is related only to situations that remind the individual of a traumatic event. If the fear, anxiety, or avoidance is restricted to trauma re- minders, and if the avoidance behavior does not extend to two or more agoraphobic situ- ations, then a diagnosis of agoraphobia is not warranted. Major depressive disorder. In major depressive disorder, the individual may avoid leav- ing home because of apathy, loss of energy, low self—esteem, and anhedonia. If the avoid- ance is unrelated to fears of panic-like or other incapacitating or embarrassing symptoms, then agoraphobia should not be diagnosed. Other medical conditions. Agoraphobia is not diagnosed if the avoidance of situations is judged to be a physiological consequence of a medical condition. This determination is based on history, laboratory findings, and a physical examination. Other relevant medical conditions may include neurodegenerative disorders with associated motor disturbances (e.g., Parkinson’s disease, multiple sclerosis), as well as cardiovascular disorders. Individ- uals with certain medical conditions may avoid situations because of realistic concerns about being incapacitated (e.g., fainting in an individual with transient ischemic attacks) or being embarrassed (e.g., diarrhea in an individual with Crohn’s disease). The diagnosis of agoraphobia should be given only when the fear or avoidance is clearly in excess of that usually associated with these medical conditions. The majority of individuals with agoraphobia also have other mental disorders. The most frequent additional diagnoses are other anxiety disorders (e.g., specific phobias, panic dis- order, social anxiety disorder), depressive disorders (major depressive disorder), PTSD, and alcohol use disorder. Whereas other anxiety disorders (e.g., separation anxiety disor- der, specific phobias, panic disorder) frequently precede onset of agoraphobia, depressive disorders and substance use disorders typically occur secondary to agoraphobia. Diagnostic Criteria 300.02 (F41.1)A. Excessive anxiety and worry (apprehensive expectation), occurring more days than not for at least 6 months, about a number of events or activities (such as work or school performance). B. The individual finds it difficult to control the worry. C. The anxiety and worry are associated with three (or more) of the following six symp- past 6 months): Note: Only one item is required in children.Restlessness or feeling keyed up or on edge.Being easily fatigued.Difficulty concentrating or mind going blank.Muscle tension.Sleep disturbance (difficulty falling or staying asleep, or restless, unsatisfying sleep). D. The anxiety, worry, or physical symptoms cause clinically significant distress or impair- ment in social, occupational, or other important areas of functioning. E. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., hyperthyroidism). F. The disturbance is not better explained by another mental disorder (e.g., anxiety or worry about having panic attacks in panic disorder, negative evaluation in social anxi- ety disorder [social phobia], contamination or other obsessions in obsessive-compul- sive disorder, separation from attachment figures in separation anxiety disorder, reminders of traumatic events in posttraumatic stress disorder. gaining weight in an- orexia nervosa, physical complaints in somatic symptom disorder, perceived appear- ance flaws in body dysmorphic disorder, having a serious illness in illness anxiety disorder. or the content of delusional beliefs in schizophrenia or delusional disorder). The essential feature of generalized anxiety disorder is excessive anxiety and worry (ap- prehensive expectation) about a number of events or activities. The intensity, duration, or frequency of the anxiety and worry is out of proportion to the actual likelihood or impact of the anticipated event. The individual finds it difficult to control the worry and to keep worrisome thoughts from interfering with attention to tasks at hand. Adults with gener- alized anxiety disorder often worry about everyday, routine life circumstances, such as possible job responsibilities, health and finances, the health of family members, misfor- tune to their children, or minor matters (e.g., doing household chores or being late for ap- pointments). Children with generalized anxiety disorder tend to worry excessively about their competence or the quality of their performance. During the course of the disorder, the focus of worry may shift from one concern to another. Several features distinguish generalized anxiety disorder from nonpathological anxiety.First, the worries associated with generalized anxiety disorder are excessive and typically in- terfere significantly with psychosocial functioning, whereas the worries of everyday life are not excessive and are perceived as more manageable and may be put off when more pressing matters arise. Second, the worries associated with generalized anxiety disorder are more pervasive, pronounced, and distressing; have longer duration; and frequently occur without precipitants. The greater the range of life circumstances about which a person worries (e.g., finances, children’s safety, job performance), the more likely his or her symp- toms are to meet criteria for generalized anxiety disorder. Third, everyday worries are much less likely to be accompanied by physical symptoms (e.g., restlessness or feeling keyed up or on edge). Individuals with generalized anxiety disorder report subjective distress due to constant worry and related impairment in social, occupational, or other important areas of functioning. The anxiety and worry are accompanied by at least three of the following additional symptoms: restlessness or feeling keyed up or on edge, being easily fatigued, difficulty concentrating or mind going blank, irritability, muscle tension, and disturbed sleep, al— though only one additional symptom is required in children. Associated with muscle tension, there may be trembling, twitching, feeling shaky, and muscle aches or soreness. Many individuals with generalized anxiety disorder also expe- rience somatic symptoms (e.g., sweating, nausea, diarrhea) and an exaggerated startle re- sponse. Symptoms of autonomic hyperarousal (e.g., accelerated heart rate, shortness of breath, dizziness) are less prominent in generalized anxiety disorder than in other anxiety disorders, such as panic disorder. Other conditions that may be associated with stress (e.g., irritable bowel syndrome, headaches) frequently accompany generalized anxiety disorder. The 12-month prevalence of generalized anxiety disorder is 0.9% among adolescents and 2.9% among adults in the general community of the United States. The 12-month preva- lence for the disorder in other countries ranges from 0.4% to 3.6%. The lifetime morbid risk is 9.0%. Females are twice as likely as males to experience generalized anxiety disorder. The prevalence of the diagnosis peaks in middle age and declines across the later years of life. Individuals of European descent tend to experience generalized anxiety disorder more frequently than do individuals of non-European descent (i.e., Asian, African, Native American and Pacific Islander). Furthermore, individuals from developed countries are more likely than individuals from nondeveloped countries to report that they have expe- rienced symptoms that meet criteria for generalized anxiety disorder in their lifetime. Many individuals with generalized anxiety disorder report that they have felt anxious and nervous all of their lives. The median age at onset for generalized anxiety disorder is 30 years; however, age at onset is spread over a very broad range. The median age at onset is later than that for the other anxiety disorders. The symptoms of excessive worry and anx- iety may occur early in life but are then manifested as an anxious temperament. Onset of the disorder rarely occurs prior to adolescence. The symptoms of generalized anxiety dis— order tend to be chronic and wax and wane across the lifespan, fluctuating between syn- dromal and subsyndromal forms of the disorder. Rates of full remission are very low. The clinical expression of generalized anxiety disorder is relatively consistent across the lifespan. The primary difference across age groups is in the content of the individual’s worry. Children and adolescents tend to worry more about school and sporting perfor- mance, whereas older adults report greater concern about the well-being of family or their own physical heath. Thus, the content of an individual’s worry tends to be age appropri- ate. Younger adults experience greater severity of symptoms than do older adults. The earlier in life individuals have symptoms that meet criteria for generalized anxiety disorder, the more comorbidity they tend to have and the more impaired they are likely to be. The advent of chronic physical disease can be a potent issue for excessive worry in the elderly. In the frail elderly, worries about safety—and especially about falling—may limit activities. In those with early cognitive impairment, what appears to be excessive worry about, for example, the whereabouts of things is probably better regarded as realistic given the cognitive impairment. In children and adolescents with generalized anxiety disorder) the anxieties and wor- ries often concern the quality of their performance or competence at school or in sporting events, even when their performance is not being evaluated by others. There may be ex- cessive concerns about punctuality. They may also worry about catastrophic events, such as earthquakes or nuclear war. Children with the disorder may be overly conforming, per- fectionist, and unsure of themselves and tend to redo tasks because of excessive dissatis- faction with less-than-perfect performance. They are typically overzealous in seeking other things they are worried about. Generalized anxiety disorder may be overdiagnosed in children. When this diagnosis is being considered in children, a thorough evaluation for the presence of other childhood anxiety disorders and other mental disorders should be done to determine whether the worries may be better explained by one of these disorders. Separation anxiety disorder, so- cial anxiety disorder (social phobia), and obsessive-compulsive disorder are often accom- panied by worries that may mimic those described in generalized anxiety disorder. For example, a child with social anxiety disorder may be concerned about school performance because of fear of humiliation. Worries about illness may also be better explained by sep- aration anxiety disorder or obsessive-compulsive disorder. Temperamental. Behavioral inhibition, negative affectivity (neuroticism), and harm avoidance have been associated with generalized anxiety disorder. Environmental. Although childhood adversities and parental overprotection have been associated with generalized anxiety disorder, no environmental factors have been identi- fied as specific to generalized anxiety disorder or necessary or sufficient for making the di- agnosis. Genetic and physiological. One-third of the risk of experiencing generalized anxiety disorder is genetic, and these genetic factors overlap with the risk of neuroticism and are shared with other anxiety and mood disorders, particularly major depressive disorder. There is considerable cultural variation in the expression of generalized anxiety disorder. For example, in some cultures, somatic symptoms predominate in the expression of the disorder, Whereas in other cultures cognitive symptoms tend to predominate. This differ- ence may be more evident on initial presentation than subsequently, as more symptoms are reported over time. There is no information as to whether the propensity for excessive worrying is related to culture, although the topic being worried about can be culture spe- cific. It is important to consider the social and cultural context when evaluating whether worries about certain situations are excessive. In clinical settings, generalized anxiety disorder is diagnosed somewhat more frequently in females than in males (about 55%—60% of those presenting with the disorder are female). In epidemiological studies, approximately two-thirds are female. Females and males who experience generalized anxiety disorder appear to have similar symptoms but demonstrate different patterns of comorbidity consistent with gender differences in the prevalence of disorders. In females, comorbidity is largely confined to the anxiety disor- ders and unipolar depression, whereas in males, comorbidity is more likely to extend to the substance use disorders as well. Excessive worrying impairs the individual’s capacity to do things quickly and efficiently, whether at home or at work. The worrying takes time and energy; the associated symp- toms of muscle tension and feeling keyed up or on edge, tiredness, difficulty concentrat- ing, and disturbed sleep contribute to the impairment. Importantly the excessive worrying may impair the ability of individuals with generalized anxiety disorder to encourage con- fidence in their children. Generalized anxiety disorder is associated with significant disability and distress that is independent of comorbid disorders, and most non-instit'utionalized adults with the disorder are moderately to seriously disabled. Generalized anxiety disorder accounts for 110 mil- lion disability days per annum in the US. population. Anxiety disorder due to another medical condition. The diagnosis of anxiety disorder associated with another medical condition should be assigned if the individual’s anxiety and worry are judged, based on history, laboratory findings, or physical examination, to be a physiological effect of another specific medical condition (e.g., pheochromocytoma, hyperthyroidism). Substance/medication-induced anxiety disorder. A substance/medication-induced anxiety disorder is distinguished from generalized anxiety disorder by the fact that a sub- stance or medication (e.g., a drug of abuse, exposure to a toxin) is judged to be etiologically related to the anxiety. For example, severe anxiety that occurs only in the context of heavy coffee consumption would be diagnosed as caffeine-induced anxiety disorder. Social anxiety disorder. Individuals with social anxiety disorder often have anticipa- tory anxiety that is focused on upcoming social situations in which they must perform or be evaluated by others, whereas individuals with generalized anxiety disorder worry, whether or not they are being evaluated. Obsessive-compulsive disorder. Several features distinguish the excessive worry of generalized anxiety disorder from the obsessional thoughts of obsessive-compulsive dis- order. In generalized anxiety disorder the focus of the worry is about forthcoming prob- lems, and it is the excessiveness of the worry about future events that is abnormal. In obsessive-compulsive disorder, the obsessions are inappropriate ideas that take the form of intrusive and unwanted thoughts, urges, or images. Posttraumatic stress disorder and adjustment disorders. Anxiety is invariably pres- ent in posttraumatic stress disorder. Generalized anxiety disorder is not diagnosed if the anxiety and worry are better explained by symptoms of posttraumatic stress disorder. Anxiety may also be present in adjustment disorder, but this residual category should be used only when the criteria are not met for any other disorder (including generalized anx- iety disorder). Moreover, in adjustment disorders, the anxiety occurs in response to an identifiable stressor within 3 months of the onset of the stressor and does not persist for more than 6 months after the termination of the stressor or its consequences. Depressive, bipolar, and psychotic disorders. Generalized anxiety/worry is a common associated feature of depressive, bipolar, and psychotic disorders and should not be di- agnosed separately if the excessive worry has occurred only during the course of these conditions. Individuals whose presentation meets criteria for generalized anxiety disorder are likely to have met, or currently meet, criteria for other anxiety and unipolar depressive disor- ders. The neuroticism or emotional liability that underpins this pattern of comorbidity is associated with temperamental antecedents and genetic and environmental risk factors shared between these disorders, although independent pathways are also possible. Co- morbidity with substance use, conduct, psychotic, neurodevelopmental, and neurocogni- tive disorders is less common. A. Panic attacks or anxiety is predominant in the clinical picture. B. There is evidence from the history. physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or withdrawal or after exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by an anxiety disorder that is not substance/ medication-induced. Such evidence of an independent anxiety disorder could include the following: The symptoms precede the onset of the substance/medication use; the symptoms persist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence suggesting the existence of an independent non-substance/medication-induced anxiety disorder (e.g., a history of recurrent non-substance/medication-related episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Note: This diagnosis should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and they are sufficiently severe to warrant clinical attention. Coding note: The |CD-9-CM and |CD-10-CM codes for the [specific substance/medica- tion]-induced anxiety disorders are indicated in the table below. Note that the |CD-10-CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the sub- stance-induced anxiety disorder, the 4th position character is “1 and the clinician should record “mild [substance] use disorder" before the substance-induced anxiety disorder (e.g., “mild cocaine use disorder with cocaine-induced anxiety disorder'). It a moderate or severe substance use disorder is comorbid with the substance-induced anxiety disorder, the 4th position character is “,"2 and the clinician should record “moderate [substance] use disorder” or “severe [substance] use disorder," depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one- time heavy use of the substance), then the 4th position character is “9," and the clinician should record only the substance-induced anxiety disorder. With use disorder, Without disorder, moderate useAlcohol 291.89 F10.180 F10.280 F10.980Caffeine 292.89 F15.180 F15.280 F15.980Cannabis 292.89 F12.180 F12.280 F12.980Phencyclidine 292.89 F16.180 F16.280 F16.980Other hallucinogen 292.89 F16.180 F16.280 F16.980Inhalant 292.89 F18.180 F18.280 F18.980Opioid 292.89 F11.188 F11.288 F11.988Sedative, hypnotic, or anxiolytic 292.89 F13.180 F13.280 F13.980Amphetamine (or other 292.89 F15.180 F15.280 F15.980Cocaine 292.89 F14.180 F14.280 F14.980Other (or unknown) substance 292.89 F19.180 F19.280 F19.980Specify it (see Table 1 in the chapter “Substance-Fielated and Addictive Disorders" tor di- agnoses associated with substance class): With onset during intoxication: This specifier applies if criteria are met for intoxica- tion with the substance and the symptoms develop during intoxication. With onset during withdrawai: This specifier applies if criteria are met for withdrawal from the substance and the symptoms develop during, or shortly after, withdrawal. With onset after medication use: Symptoms may appear either at initiation of medi- cation or after a modification or change in use. |CD-9-CM. The name of the substance/medication-induced anxiety disorder begins with the specific substance (e.g., cocaine, salbutamol) that is presumed to be causing the anxiety symptoms. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., salbutamol), the code for "other substance" should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is un- known, the category ”unknown substance” should be used. The name of the disorder is followed by the specification of onset (i.e., onset during in- toxication, onset during withdrawal, with onset during medication use). Unlike the record- ing procedures for ICD-lO-CM, which combine the substance-induced disorder and substance use disorder into a single code, for ICD—9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of anxiety symptoms occurring dur- ing withdrawal in a man with a severe lorazepam use disorder, the diagnosis is 292.89 loraz- epam-induced anxiety disorder, with onset during withdrawal. An additional diagnosis of 304.10 severe lorazepam use disorder is also given. When more than one substance is judged to play a significant role in the development of anxiety symptoms, each should be listed sep- arately (e.g., 292.89 methylphenidate-induced anxiety disorder, with onset during intoxica- tion; 292.89 salbutamol-induced anxiety disorder, with onset after medication use). |CD-10-CM. The name of the substance/medication-induced anxiety disorder begins with the specific substance (e.g., cocaine, salbutamol) that is presumed to be causing the anxiety symptoms. The diagnostic code is selected from the table included in the criteria set, Which is based on the drug class and presence or absence of a comorbid substance use disorder. For substances that do not fit into any of the classes (e.g., salbutamol), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category “unknown substance” should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word ”with,” followed by the name of the substance-induced anxiety disorder, followed by the specification of onset (i.e., onset during intoxication, onset during withdrawal, with onset during medication use). For example, in the case of anxiety symptoms occurring during withdrawal in a man with a severe lorazepam use dis- order, the diagnosis is F13.280 severe lorazepam use disorder with lorazepam-induced anxiety disorder, with onset during withdrawal. A separate diagnosis of the comorbid se- vere lorazepam use disorder is not given. If the substance-induced anxiety disorder occurs without a comorbid substance use disorder (e.g., after a one-time heavy use of the substance), no accompanying substance use disorder is noted (e.g., F16.980 psilocybin—induced anxi- ety disorder, with onset during intoxication). When more than one substance is judged to play a significant role in the development of anxiety symptoms, each should be listed sep- arately (e.g., F15.280 severe methylphenidate use disorder with methylphenidate—induced anxiety disorder, with onset during intoxication; F19.980 salbutamol-induced anxiety dis- order, with onset after medication use). The essential features of substance/medication-induced anxiety disorder are prominent symptoms of panic or anxiety (Criterion A) that are judged to be due to the effects of a sub- stance (e.g., a drug of abuse, a medication, or a toxin exposure). The panic or anxiety symp- after exposure to a medication, and the substances or medications must be capable of pro— ducing the symptoms (Criterion B2). Substance/medication-induced anxiety disorder due to a prescribed treatment for a mental disorder or another medical condition must have its onset while the individual is receiving the medication (or during withdrawal, if a withdrawal is associated with the medication). Once the treatment is discontinued, the panic or anxiety symptoms will usually improve or remit within days to several weeks to a month (depending on the half-life of the substance/ medication and the presence of with- drawal). The diagnosis of substance/medication-induced anxiety disorder should not be given if the onset of the panic or anxiety symptoms precedes the substance/ medication in- toxication or withdrawal, or if the symptoms persist for a substantial period of time (i.e., usually longer than 1 month) from the time of severe intoxication or withdrawal. If the panic or anxiety symptoms persist for substantial periods of time, other causes for the symptoms should be considered. The substance/medication-induced anxiety disorder diagnosis should be made in- stead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A are predominant in the clinical picture and are sufficiently severe to warrant independent clinical attention. Panic or anxiety can occur in association with intoxication with the following classes of sub- stances: alcohol, caffeine, cannabis, phencyclidine, other hallucinogens, inhalants, stimu— lants (including cocaine), and other (or unknown) substances. Panic or anxiety can occur in association with withdrawal from the following classes of substances: alcohol; opioids; sed- atives, hypnotics, and anxiolytics; stimulants (including cocaine); and other (or unknown) substances. Some medications that evoke anxiety symptoms include anesthetics and anal- gesics, sympathomimetics or other bronchodilators, anticholinergics, insulin, thyroid prep- arations, oral contraceptives, antihistamines, antiparkinsonian medications, corticosteroids, antihypertensive and cardiovascular medications, anticonvulsants, lithium carbonate, an- tipsychotic medications, and antidepressant medications. Heavy metals and toxins (e.g., organophosphate insecticide, nerve gases, carbon monoxide, carbon dioxide, volatile sub- stances such as gasoline and paint) may also cause panic or anxiety symptoms. The prevalence of substance/medication-induced anxiety disorder is not clear. General population data suggest that it may be rare, with a 12-month prevalence of approximately 0.002%. However, in clinical populations, the prevalence is likely to be higher. Laboratory assessments (e.g., urine toxicology) may be useful to measure substance intox- ication as part of an assessment for substance/medication-induced anxiety disorder. Substance intoxication and substance withdrawal. Anxiety symptoms commonly oc- cur in substance intoxication and substance withdrawal. The diagnosis of the substance— specific intoxication or substance-specific withdrawal will usually suffice to categorize the symptom presentation. A diagnosis of substance/medication-induced anxiety disorder should be made in addition to substance intoxication or substance withdrawal when the panic or anxiety symptoms are predominant in the clinical picture and are sufficiently se- vere to warrant independent clinical attention. For example, panic or anxiety symptoms are characteristic of alcohol withdrawal. Anxiety disorder (i.e., not induced by a substance/medication). Substance/medication- induced anxiety disorder is judged to be etiologically related to the substance/medication. Substance/medication-induced anxiety disorder is distinguished from a primary anxiety disorder based on the onset, course, and other factors with respect to substances/medica- tions. For drugs of abuse, there must be evidence from the history, physical examination, or laboratory findings for use, intoxication, or withdrawal. Substance/medication-induced anxiety disorders arise only in association with intoxication or withdrawal states, whereas primary anxiety disorders may precede the onset of substance/medication use. The pres- ence of features that are atypical of a primary anxiety disorder, such as atypical age at onset (e.g., onset of panic disorder after age 45 years) or symptoms (e.g., atypical panic attack symptoms such as true vertigo, loss of balance, loss of consciousness, loss of bladder con- trol, headaches, slurred speech) may suggest a substance/medication-induced etiology. A primary anxiety disorder diagnosis is warranted if the panic or anxiety symptoms persist for a substantial period of time (about 1 month or longer) after the end of the substance in- toxication or acute withdrawal or there is a history of an anxiety disorder. Delirium. If panic or anxiety symptoms occur exclusively during the course of delirium, they are considered to be an associated feature of the delirium and are not diagnosed sep- arately. Anxiety disorder due to another medical condition. If the panic or anxiety symptoms are attributed to the physiological consequences of another medical condition (i.e., rather than to the medication taken for the medical condition), anxiety disorder due to another medical condition should be diagnosed. The history often provides the basis for such a judgment. At times, a change in the treatment for the other medical condition (e.g., med- ication substitution or discontinuation) may be needed to determine whether the medica- tion is the causative agent (in which case the symptoms may be better explained by substance/medication-induced anxiety disorder). If the disturbance is attributable to both another medical condition and substance use, both diagnoses (i.e., anxiety disorder due to given. When there is insufficient evidence to determine whether the panic or anxiety symp- toms are attributable to a substance/medication or to another medical condition or are pri- mary (i.e., not attributable to either a substance or another medical condition), a diagnosis of other specified or unspecified anxiety disorder would be indicated. Diagnostic Criteria 293.84 (F06.4)A. Panic attacks or anxiety is predominant in the clinical picture. B. There is evidence from the history, physical examination, or laboratory findings that the dis- turbance is the direct pathophysiological consequence of another medical condition. C. The disturbance is not better explained by another mental disorder. D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social. occupa- tional, or other important areas of functioning. Coding note: Include the name of the other medical condition within the name of the men- tal disorder (e.g.. 293.84 [F06.4] anxiety disorder due to pheochromocytoma). The other medical condition should be coded and listed separately immediately before the anxiety disorder due to the medical condition (e.g., 227.0 [D3500] pheochromocytoma; 293.84 [F06.4] anxiety disorder due to pheochromocytoma. The essential feature of anxiety disorder due to another medical condition is clinically signifi- cant anxiety that is judged to be best explained as a physiological effect of another medical con- dition. Symptoms can include prominent anxiety symptoms or panic attacks (Criterion A). The judgment that the symptoms are best explained by the associated physical condition must be based on evidence from the history, physical examination, or laboratory findings (Criterion B). Additionally, it must be judged that the symptoms are not better accounted for by another mental disorder, in particular, adjustment disorder, with anxiety, in which the stressor is the medical condition (Criterion C). In this case, an individual with adjustment disorder is espe- cially distressed about the meaning or the consequences of the associated medical condition. By contrast, there is often a prominent physical component to the anxiety (e.g., shortness of breath) when the anxiety is due to another medical condition. The diagnosis is not made if the anxiety symptoms occur only during the course of a delirium (Criterion D). The anxiety symp- toms must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion E). In determining whether the anxiety symptoms are attributable to another medical con- dition, the clinician must first establish the presence of the medical condition. Further- more, it must be established that anxiety symptoms can be etiologically related to the is the best explanation for the symptoms in a specific individual. A careful and compre- Anxiety Disorder Due to Another Medical Condition 231 hensive assessment of multiple factors is necessary to make this judgment. Several aspects of the clinical presentation should be considered: 1) the presence of a clear temporal asso- ciation between the onset, exacerbation, or remission of the medical condition and the anx- iety symptoms; 2) the presence of features that are atypical of a primary anxiety disorder (e.g., atypical age at onset or course); and 3) evidence in the literature that a known phys- iological mechanism (e.g., hyperthyroidism) causes anxiety. In addition, the disturbance must not be better explained by a primary anxiety disorder, a substance/medication- induced anxiety disorder, or another primary mental disorder (e.g., adjustment disorder). A number of medical conditions are known to include anxiety as a symptomatic manifes- tation. Examples include endocrine disease (e.g., hyperthyroidism, pheochromocytoma, hypoglycemia, hyperadrenocortisolism), cardiovascular disorders (e.g., congestive heart failure, pulmonary embolism, arrhythmia such as atrial fibrillation), respiratory illness (e.g., chronic obstructive pulmonary disease, asthma, pneumonia), metabolic distur— bances (e.g., vitamin B12 deficiency, porphyria), and neurological illness (e.g., neoplasms, vestibular dysfunction, encephalitis, seizure disorders). Anxiety due to another medical condition is diagnosed when the medical condition is known to induce anxiety and when the medical condition preceded the onset of the anxiety. The prevalence of anxiety disorder due to another medical condition is unclear. There ap- pears to be an elevated prevalence of anxiety disorders among individuals with a variety of medical conditions, including asthma, hypertension, ulcers, and arthritis. However, this increased prevalence may be due to reasons other than the anxiety disorder directly caus- ing the medical condition. The development and course of anxiety disorder due to another medical condition gen- erally follows the course of the underlying illness. This diagnosis is not meant to include primary anxiety disorders that arise in the context of chronic medical illness. This is im- portant to consider with older adults, who may experience chronic medical illness and then develop independent anxiety disorders secondary to the chronic medical illness. Laboratory assessments and/ or medical examinations are necessary to confirm the diag- nosis of the associated medical condition. Delirium. A separate diagnosis of anxiety disorder due to another medical condition is not given if the anxiety disturbance occurs exclusively during the course of a delirium. However, a diagnosis of anxiety disorder due to another medical condition may be given in addition to a diagnosis of major neurocognitive disorder (dementia) if the etiology of anxiety is judged to be a physiological consequence of the pathological process causing the neurocognitive disorder and if anxiety is a prominent part of the clinical presentation. Mixed presentation of symptoms (e.g., mood and anxiety). If the presentation includes a mix of different types of symptoms, the specific mental disorder due to another medical condition depends on which symptoms predominate in the clinical picture. Substance/medication-induced anxiety disorder. If there is evidence of recent or pro- longed substance use (including medications with psychoactive effects), withdrawal from a substance, or exposure to a toxin, a substance/medication-induced anxiety disorder should be considered. Certain medications are known to increase anxiety (e.g., corticoste- roids, estrogens, metoclopramide), and when this is the case, the medication may be the most likely etiology, although it may be difficult to distinguish whether the anxiety is at- tributable to the medications or to the medical illness itself. When a diagnosis of substance- induced anxiety is being made in relation to recreational or nonprescribed drugs, it may be useful to obtain a urine or blood drug screen or other appropriate laboratory evaluation. Symptoms that occur during or shortly after (i.e., within 4 weeks of) substance intoxication or withdrawal or after medication use may be especially indicative of a substance/ medi- cation-induced anxiety disorder, depending on the type, duration, or amount of the sub- stance used. If the disturbance is associated with both another medical condition and substance use, both diagnoses (i.e., anxiety disorder due to another medical condition and substance/medication-induced anxiety disorder) can be given. Features such as onset af- ter age 45 years or the presence of atypical symptoms during a panic attack (e.g., vertigo, loss of consciousness, loss of bladder or bowel control, slurred speech, amnesia) suggest the possibility that another medical condition or a substance may be causing the panic at- tack symptoms. Anxiety disorder (not due to a known medical condition). Anxiety disorder due to an- panic disorder and generalized anxiety disorder). In other anxiety disorders, no specific and direct causative physiological mechanisms associated with another medical condition can be demonstrated. Late age at onset, atypical symptoms, and the absence of a personal or family history of anxiety disorders suggest the need for a thorough assessment to rule out the diagnosis of anxiety disorder due to another medical condition. Anxiety disorders can exacerbate or pose increased risk for medical conditions such as cardiovascular events and myocardial infarction and should not be diagnosed as anxiety disorder due to another medical condition in these cases. Illness anxiety disorder. Anxiety disorder due to another medical condition should be distinguished from illness anxiety disorder. Illness anxiety disorder is characterized by worry about illness, concern about pain, and bodily preoccupations. In the case of illness anxiety disorder, individuals may or may not have diagnosed medical conditions. Al- though an individual with illness anxiety disorder and a diagnosed medical condition is likely to experience anxiety about the medical condition, the medical condition is not physiologically related to the anxiety symptoms. Adjustment disorders. Anxiety disorder due to another medical condition should be distinguished from adjustment disorders, with anxiety, or with anxiety and depressed mood. Adjustment disorder is warranted when individuals experience a maladaptive re- sponse to the stress of having another medical condition. The reaction to stress usually concerns the meaning or consequences of the stress, as compared with the experience of anxiety or mood symptoms that occur as a physiological consequence of the other medical condition. In adjustment disorder, the anxiety symptoms are typically related to coping with the stress of having a general medical condition, whereas in anxiety disorder due to another medical condition, individuals are more likely to have prominent physical symp- toms and to be focused on issues other than the stress of the illness itself. Associated feature of another mental disorder. Anxiety symptoms may be an associ- ated feature of another mental disorder (e.g., schizophrenia, anorexia nervosa). Other specified or unspecified anxiety disorder. This diagnosis is given if it cannot be determined whether the anxiety symptoms are primary, substance-induced, or associated with another medical condition. 300.09 (F41.8)This category applies to presentations in which symptoms characteristic of an anxiety dis- order that cause clinically significant distress or impairment in social. occupational, or oth- er important areas of functioning predominate but do not meet the full criteria for any of the disorders in the anxiety disorders diagnostic class. The other specified anxiety disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific anxiety disorder. This is done by recording “other specified anxiety disorder” followed by the specific reason (e.g., “generalized anxiety not occurring more days than not"). Examples of presentations that can be specified using the “other specified" designation include the following: 1. Limited-symptom attacks. 2. Generalized anxiety not occurring more days than not.3. Khyél cap (wind attacks): See “Glossary of Cultural Concepts of Distress" in the Ap- pendix. 4. Ataque de nervios (attack of nerves): See “Glossary of Cultural Concepts of Distress" in the Appendix. 300.00 (F41.9)This category applies to presentations in which symptoms characteristic of an anxiety dis- order that cause clinically significant distress or impairment in social, occupational, or oth- er important areas of functioning predominate but do not meet the full criteria for any of the disorders in the anxiety disorders diagnostic class. The unspecified anxiety disorder cate- gory is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific anxiety disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). .. r.,,__.... .0. W .._,. W disorder (OCD), body dysmorphic disorder, hoarding disorder, trichotillomania (hair- pulling disorder), excoriation (skin—picking) disorder, substance/medication-induced ob- sessive-compulsive and related disorder, obsessive-compulsive and related disorder due to another medical condition, and other specified obsessive—compulsive and related dis— order and unspecified obsessive-compulsive and related disorder (e.g., body-focused re- petitive behavior disorder, obsessional jealousy). OCD is characterized by the presence of obsessions and / or compulsions. Obsessions are recurrent and persistent thoughts, urges, or images that are experienced as intrusive and unwanted, whereas compulsions are repetitive behaviors or mental acts that an indi- vidual feels driven to perform in response to an obsession or according to rules that must be applied rigidly. Some other obsessive-compulsive and related disorders are also char- acterized by preoccupations and by repetitive behaviors or mental acts in response to the preoccupations. Other obsessive-compulsive and related disorders are characterized pri- marily by recurrent body-focused repetitive behaviors (e.g., hair pulling, skin picking) and repeated attempts to decrease or stop the behaviors. The inclusion of a chapter on obsessive-compulsive and related disorders in DSM-5 re- flects the increasing evidence of these disorders’ relatedness to one another in terms of a range of diagnostic validators as well as the clinical utility of grouping these disorders in the same chapter. Clinicians are encouraged to screen for these conditions in individuals who present with one of them and be aware of overlaps between these conditions. At the same time, there are important differences in diagnostic validators and treatment ap- proaches across these disorders. Moreover, there are close relationships between the anx- iety disorders and some of the obsessive-compulsive and related disorders (e.g., 0CD), which is reflected in the sequence of DSM-5 chapters, with obsessive—compulsive and re- lated disorders following anxiety disorders. The obsessive-compulsive and related disorders differ from developmentally norma- appropriate periods. The distinction between the presence of subclinical symptoms and a clinical disorder requires assessment of a number of factors, including the individual’s level of distress and impairment in functioning. The chapter begins with 0CD. It then covers body dysmorphic disorder and hoarding disorder, which are characterized by cognitive symptoms such as perceived defects or flaws in physical appearance or the perceived need to save possessions, respectively. The disorder, which are characterized by recurrent body-focused repetitive behaviors. Finally, it covers substance/medication-induced obsessive-compulsive and related disorder, obsessive-compulsive and related disorder due to another medical condition, and other sive and related disorder. While the specific content of obsessions and compulsions varies among individuals, certain symptom dimensions are common in 0CD, including those of cleaning (contami- ing, ordering, and counting compulsions); forbidden or taboo thoughts (e.g., aggressive, sexual, and religious obsessions and related compulsions); and harm (e.g., fears of harm to oneself or others and related checking compulsions). The tic-related specifier of 0CD is used when an individual has a current or past history of a tic disorder. Body dysmorphic disorder is characterized by preoccupation with one or more per- ceived defects or flaws in physical appearance that are not observable or appear only slight to others, and by repetitive behaviors (e.g., mirror checking, excessive grooming, skin picking, or reassurance seeking) or mental acts (e.g., comparing one’s appearance with that of other people) in response to the appearance concerns. The appearance preoccupations are not better explained by concerns with body fat or weight in an individual with an eat- ing disorder. Muscle dysmorphia is a form of body dysmorphic disorder that is character— ized by the belief that one’s body build is too small or is insufficiently muscular. Hoarding disorder is characterized by persistent difficulty discarding or parting with possessions, regardless of their actual value, as a result of a strong perceived need to save the items and to distress associated with discarding them. Hoarding disorder differs from normal collecting. For example, symptoms of hoarding disorder result in the accumula- tion of a large number of possessions that congest and clutter active living areas to the ex- tent that their intended use is substantially compromised. The excessive acquisition form of hoarding disorder, which characterizes most but not all individuals with hoarding dis- order, consists of excessive collecting, buying, or stealing of items that are not needed or for which there is no available space. Trichotillomania (hair-pulling disorder) is characterized by recurrent pulling out of one's hair resulting in hair loss, and repeated attempts to decrease or stop hair pulling. Excoriation (skin-picking) disorder is characterized by recurrent picking of one’s skin re- sulting in skin lesions and repeated attempts to decrease or stop skirt picking. The body- focused repetitive behaviors that characterize these two disorders are not triggered by ob- sessions or preoccupations; however, they may be preceded or accompanied by various emotional states, such as feelings of anxiety or boredom. They may also be preceded by an increasing sense of tension or may lead to gratification, pleasure, or a sense of relief when the hair is pulled out or the skin is picked. Individuals with these disorders may have vary- ing degrees of conscious awareness of the behavior while engaging in it, with some indi- viduals displaying more focused attention on the behavior (with preceding tension and subsequent relief) and other individuals displaying more automatic behavior (with the be- haviors seeming to occur without full awareness). symptoms that are due to substance intoxication or withdrawal or to a medication. Obses- sive-compulsive and related disorder due to another medical condition involves symptoms characteristic of obsessive-compulsive and related disorders that are the direct pathophysio- logical consequence of a medical disorder. Other specified obsessive-compulsive and related disorder and unspecified obsessive-compulsive and related disorder consist of symptoms that do not meet criteria for a specific obsessive—compulsive and related disorder because of atypical presentation or uncertain etiology; these categories are also used for other specific syndromes that are not listed in Section [I and when insufficient information is available to di- agnose the presentation as another obsessive—compulsive and related disorder. Examples of specific syndromes not listed in Section II, and therefore diagnosed as other specified obses— sive-compulsive and related disorder or as unspecified obsessive—compulsive and related disorder include body—focused repetitive behavior disorder and obsessional jealousy. sight as the basis for specifiers; in each of these disorders, insight ranges from ”good or fair insight” to ”poor insight" to "absent insight/delusional beliefs” with respect to disorder- related beliefs. For individuals whose obsessive-compulsive and related disorder symp- toms warrant the “with absent insight/delusional beliefs” specifier, these symptoms should not be diagnosed as a psychotic disorder. Diagnostic Criteria 300.3 (F42)A. Presence of obsessions, compulsions, or both:Obsessions are defined by (1) and (2): 1. Recurrent and persistent thoughts, urges, or images that are experienced, at some time during the disturbance. as intrusive and unwanted, and that in most individuals cause marked anxiety or distress. 2. The individual attempts to ignore or suppress such thoughts, urges, or images, or to neutralize them with some other thought or action (i.e., by performing a compulsion). Compulsions are defined by (1) and (2): 1. Repetitive behaviors (e.g., hand washing, ordering, checking) or mental acts (e.g., praying, counting, repeating words silently) that the individual feels driven to per- form in response to an obsession or according to rules that must be applied rigidly. 2. The behaviors or mental acts are aimed at preventing or reducing anxiety or dis- tress, or preventing some dreaded event or situation; however, these behaviors or mental acts are not connected in a realistic way with what they are designed to neu- tralize or prevent, or are clearly excessive. Note: Young children may not be able to articulate the aims of these behaviors or mental acts. B. The obsessions or compulsions are time-consuming (e.g., take more than 1 hour per day) or cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. C. The obsessive-compulsive symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. D. The disturbance is not better explained by the symptoms of another mental disorder (e.g.. excessive worries. as in generalized anxiety disorder; preoccupation with ap- pearance, as in body dysmorphic disorder; difficulty discarding or parting with posses- sions, as in hoarding disorder; hair pulling, as in trichotillomania [hair-pulling disorder]; skin picking, as in excoriation [skin-picking] disorder; stereotypies, as in stereotypic movement disorder; ritualized eating behavior, as in eating disorders; preoccupation with substances or gambling, as in substance-related and addictive disorders; preoc- cupation with having an illness, as in illness anxiety disorder; sexual urges or fantasies, as in paraphilic disorders; impulses, as in disruptive, impulse-control, and conduct dis- orders; guilty ruminations, as in major depressive disorder; thought insertion or delu- sional preoccupations, as in schizophrenia spectrum and other psychotic disorders; or repetitive patterns of behavior, as in autism spectrum disorder). Specify it:With good or fair insight: The individual recognizes that obsessive-compulsive dis- order beliefs are definitely or probably not true or that they may or may not be true. With poor insight: The individual thinks obsessive-compulsive disorder beliefs are probably true. With absent insightldeiuslonai beiiets: The individual is completely convinced that obsessive-compulsive disorder beliefs are true. Specify it:Tic-related: The individual has a current or past history of a tie disorder. Many individuals with obsessive-compulsive disorder (OCD) have dysfunctional beliefs.These beliefs can include an inflated sense of responsibility and the tendency to overesti- mate threat; perfectionism and intolerance of uncertainty; and over—importance of thoughts (e.g., believing that having a forbidden thought is as bad as acting on it) and the need to control thoughts. Individuals with OCD vary in the degree of insight they have about the accuracy of the beliefs that underlie their obsessive-compulsive symptoms. Many individuals have good or fair insight (e.g., the individual believes that the house definitely will not, probably will not, or may or may not burn down if the stove is not checked 30 times). Some have poor insight (e.g., the individual believes that the house will probably burn down if the stove is not checked 30 times), and a few (4% or less) have absent insight/delusional beliefs (e.g., the in- dividual is convinced that the house will burn down if the stove is not checked 30 times). Insight can vary within an individual over the course of the illness. Poorer insight has been linked to worse long-term outcome. Up to 30% of individuals with OCD have a lifetime tic disorder. This is most common in males with onset of 0CD in childhood. These individuals tend to differ from those with- out a history of tic disorders in the themes of their 0CD symptoms, comorbidity, course, and pattern of familial transmission. The characteristic symptoms of 0CD are the presence of obsessions and compulsions (Cri- terion A). Obsessions are repetitive and persistent thoughts (e.g., of contamination), images (e.g., of violent or horrific scenes), or urges (e.g., to stab someone). Importantly, obsessions are not pleasurable or experienced as voluntary: they are intrusive and unwanted and cause marked distress or anxiety in most individuals. The individual attempts to ignore or suppress these obsessions (e.g., avoiding triggers or using thought suppression) or to neu- tralize them with another thought or action (e.g., performing a compulsion). Compulsions (or rituals) are repetitive behaviors (e.g., washing, checking) or mental acts (e.g., counting, repeating words silently) that the individual feels driven to perform in response to an obsession or according to rules that must be applied rigidly. Most individuals with OCD have both obsessions and compulsions. Compulsions are typically performed in response to an obsession (e.g., thoughts of contamination leading to washing rituals or that some- thing is incorrect leading to repeating rituals until it feels "just right”). The aim is to reduce the distress triggered by obsessions or to prevent a feared event (e.g., becoming ill). How- ever, these compulsions either are not connected in a realistic way to the feared event (e.g., arranging items symmetrically to prevent harm to a loved one) or are clearly excessive (e.g., showering for hours each day). Compulsions are not done for pleasure, although some individuals experience relief from anxiety or distress. Criterion B emphasizes that obsessions and compulsions must be time-consuming (e.g., more than 1 hour per day) or cause clinically significant distress or impairment to warrant a diagnosis of OCD. This criterion helps to distinguish the disorder from the occasional in— trusive thoughts or repetitive behaviors that are common in the general population (e.g., double-checking that a door is locked). The frequency and severity of obsessions and com- pulsions vary across individuals with 0CD (e.g., some have mild to moderate symptoms, spending 1—3 hours per day obsessing or doing compulsions, whereas others have nearly constant intrusive thoughts or compulsions that can be incapacitating). The specific content of obsessions and compulsions varies between individuals. However, certain themes, or dimensions, are common, including those of cleaning (contamination obsessions and cleaning compulsions); symmetry (symmetry obsessions and repeating, ordering, and counting compulsions); forbidden or taboo thoughts (e.g., aggressive, sexual, or religious obsessions and related compulsions); and harm (e.g., fears of harm to oneself or others and checking compulsions). Some individuals also have difficulties discarding and accumulate (hoard) objects as a consequence of typical obsessions and compulsions, such as fears of harming others. These themes occur across different cultures, are rela— tively consistent over time in adults with the disorder, and may be associated with differ- ent neural substrates. Importantly, individuals often have symptoms in more than one dimension. Individuals with 0CD experience a range of affective responses when confronted with situations that trigger obsessions and compulsions. For example, many individuals expe- rience marked anxiety that can include recurrent panic attacks. Others report strong feel- ings of disgust. While performing compulsions, some individuals report a distressing sense of "incompleteness” or uneasiness until things look, feel, or sound ”just right.” It is common for individuals with the disorder to avoid people, places, and things that trigger obsessions and compulsions. For example, individuals with contamination con- cerns might avoid public situations (e.g., restaurants, public restrooms) to reduce ex- posure to feared contaminants; individuals with intrusive thoughts about causing harm might avoid social interactions. The 12-month prevalence of 0CD in the United States is 1.2%, with a similar prevalence in— ternationally 0.1%—1.8%). Females are affected at a slightly higher rate than males in adulthood, although males are more commonly affected in childhood. In the United States, the mean age at onset of OCD is 19.5 years, and 25% of cases start by age 14 years. Onset after age 35 years is unusual but does occur. Males have an earlier age at onset than females: nearly 25% of males have onset before age 10 years. The onset of symptoms is typically gradual; however, acute onset has also been reported. If 0CD is untreated, the course is usually chronic, often with waxing and waning symp- toms. Some individuals have an episodic course, and a minority have a deteriorating course. Without treatment, remission rates in adults are low (e.g., 20% for those reevalu- ated 40 years later). Onset in childhood or adolescence can lead to a lifetime of OCD. How- ever, 40% of individuals with onset of 0CD in childhood or adolescence may experience remission by early adulthood. The course of 0CD is often complicated by the co—occurrence of other disorders (see section ”Comorbidity" for this disorder). Compulsions are more easily diagnosed in children than obsessions are because com- pulsions are observable. However, most children have both obsessions and compulsions (as do most adults). The pattern of symptoms in adults can be stable over time, but it is more variable in children. Some differences in the content of obsessions and compulsions adult samples. These differences likely reflect content appropriate to different develop- mental stages (e.g., higher rates of sexual and religious obsessions in adolescents than in children; higher rates of harm obsessions [e.g., fears of catastrophic events, such as death or illness to self or loved ones] in children and adolescents than in adults). Temperamental. Greater internalizing symptoms, higher negative emotionality, and behavioral inhibition in childhood are possible temperamental risk factors. Environmental. Physical and sexual abuse in childhood and other stressful or traumatic events have been associated with an increased risk for developing OCD. Some children may develop the sudden onset of obsessive-compulsive symptoms, which has been asso- ciated with different environmental factors, including various infectious agents and a post-infectious autoimmune syndrome. Genetic and physiological. The rate of 0CD among first-degree relatives of adults with OCD is approximately two times that among first-degree relatives of those without the disorder; however, among first-degree relatives of individuals with onset of 0CD in child- hood or adolescence, the rate is increased 10-fold. Familial transmission is due in part to genetic factors (e.g., a concordance rate of 0.57 for monozygotic vs. 0.22 for dizygotic twins). Dysfunction in the orbitofrontal cortex, anterior cingulate cortex, and striatum have been most strongly implicated. 0CD occurs across the world. There is substantial similarity across cultures in the gender distribution, age at onset, and comorbidity of OCD. Moreover, around the globe, there is a similar symptom structure involving cleaning, symmetry, hoarding, taboo thoughts, or fear of harm. However, regional variation in symptom expression exists, and cultural factors may shape the content of obsessions and compulsions. Males have an earlier age at onset of OCD than females and are more likely to have co- morbid tic disorders. Gender differences in the pattern of symptom dimensions have been reported, with, for example, females more likely to have symptoms in the cleaning dimen- sion and males more likely to have symptoms in the forbidden thoughts and symmetry di- mensions. Onset or exacerbation of 0CD, as well as symptoms that can interfere with the mother-infant relationship (e.g., aggressive obsessions leading to avoidance of the infant), have been reported in the peripartum period. Suicidal thoughts occur at some point in as many as about half of individuals with OCD. Suicide attempts are also reported in up to one-quarter of individuals with 0CD; the pres- ence of comorbid major depressive disorder increases the risk. 0CD is associated with reduced quality of life as well as high levels of social and occupa- tional impairment. Impairment occurs across many different domains of life and is asso- ciated with symptom severity. Impairment can be caused by the time spent obsessing and doing compulsions. Avoidance of situations that can trigger obsessions or compulsions can also severely restrict functioning. In addition, specific symptoms can create specific obstacles. For example, obsessions about harm can make relationships with family and friends feel hazardous; the result can be avoidance of these relationships. Obsessions about symmetry can derail the timely completion of school or work projects because the project never feels “just right,” potentially resulting in school failure or job loss. Health consequences can also occur. For example, individuals with contamination concerns may avoid doctors’ offices and hospitals (e.g., because of fears of exposure to germs) or develop dermatological problems (e.g., skin lesions due to excessive washing). Sometimes the symptoms of the disorder interfere with its own treatment (e.g., when medications are con- sidered contaminated). When the disorder starts in childhood or adolescence, individuals may experience developmental difficulties. For example, adolescents may avoid socializ- ing with peers; young adults may struggle when they leave home to live independently. The result can be few significant relationships outside the family and a lack of autonomy and financial independence from their family of origin. In addition, some individuals with OCD try to impose rules and prohibitions on family members because of their disorder (e.g., no one in the family can have visitors to the house for fear of contamination), and this can lead to family dysfunction. Anxiety disorders. Recurrent thoughts, avoidant behaviors, and repetitive requests for reassurance can also occur in anxiety disorders. However, the recurrent thoughts that are present in generalized anxiety disorder (i.e., worries) are usually about real-life concerns, whereas the obsessions of OCD usually do not involve real-life concerns and can include content that is odd, irrational, or of a seemingly magical nature; moreover, compulsions are often present and usually linked to the obsessions. Like individuals with 0CD, indi— viduals with specific phobia can have a fear reaction to specific objects or situations; how- ever, in specific phobia the feared object is usually much more circumscribed, and rituals are not present. In social anxiety disorder (social phobia), the feared objects or situations are limited to social interactions, and avoidance or reassurance seeking is focused on re— ducing this social fear. Major depressive disorder. OCD can be distinguished from the rumination of major depressive disorder, in which thoughts are usually mood-congruent and not necessarily experienced as intrusive or distressing; moreover, ruminations are not linked to compul— sions, as is typical in OCD. Other obsessive-compulsive and related disorders. In body dysmorphic disorder, the obsessions and compulsions are limited to concerns about physical appearance; and in trichotillomania (hair-pulling disorder), the compulsive behavior is limited to hair pulling in the absence of obsessions. Hoarding disorder symptoms focus exclusively on the per- sistent difficulty discarding or parting with possessions, marked distress associated with discarding items, and excessive accumulation of objects. However, if an individual has ob— sessions that are typical of 0CD (e.g., concerns about incompleteness or harm), and these obsessions lead to compulsive hoarding behaviors (e.g., acquiring all objects in a set to at- tain a sense of completeness or not discarding old newspapers because they may contain information that could prevent harm), a diagnosis of OCD should be given instead. Eating disorders. OCD can be distinguished from anorexia nervosa in that in OCD the obsessions and compulsions are not limited to concerns about weight and food. Tics (in tic disorder) and stereotyped movements. A tic is a sudden, rapid, recurrent, nonrhythmic motor movement or vocalization (e.g., eye blinking, throat clearing). A ste— reotyped movement is a repetitive, seemingly driven, nonfunctional motor behavior (e.g., head banging, body rocking, self—biting). Tics and stereotyped movements are typically less complex than compulsions and are not aimed at neutralizing obsessions. However, distinguishing between complex tics and compulsions can be difficult. Whereas compul- sions are usually preceded by obsessions, tics are often preceded by premonitory sensory urges. Some individuals have symptoms of both OCD and a tic disorder, in which case both diagnoses may be warranted. Psychotic disorders. Some individuals with 0CD have poor insight or even delusional 0CD beliefs. However, they have obsessions and compulsions (distinguishing their condition from delusional disorder) and do not have other features of schizophrenia or schizoaffective disorder (e.g., hallucinations or formal thought disorder). Other compulsive-like behaviors. Certain behaviors are sometimes described as ”com- pulsive,” including sexual behavior (in the case of paraphilias), gambling (i.e., gambling disorder), and substance use (e.g., alcohol use disorder). However, these behaviors differ from the compulsions of OCD in that the person usually derives pleasure from the activity and may wish to resist it only because of its deleterious consequences. Obsessive-compulsive personality disorder. Although obsessive-compulsive person- ality disorder and 0CD have similar names, the clinical manifestations of these disorders are quite different. Obsessive-compulsive personality disorder is not characterized by in- trusive thoughts, images, or urges or by repetitive behaviors that are performed in re- sponse to these intrusions; instead, it involves an enduring and pervasive maladaptive pattern of excessive perfectionism and rigid control. If an individual manifests symptoms of both OCD and obsessive-compulsive personality disorder, both diagnoses can be given. Individuals with OCD often have other psychopathology. Many adults with the disorder have a lifetime diagnosis of an anxiety disorder (76%; e.g., panic disorder, social anxiety disorder, generalized anxiety disorder, specific phobia) or a depressive or bipolar disorder (63% for any depressive or bipolar disorder, with the most common being major depres- sive disorder [41%]). Onset of OCD is usually later than for most comorbid anxiety disor- ders (with the exception of separation anxiety disorder) and PTSD but often precedes that of depressive disorders. Comorbid obsessive-compulsive personality disorder is also common in individuals with OCD (e.g., ranging from 23% to 32%). Up to 30% of individuals with OCD also have a lifetime tic disorder. A comorbid tic disorder is most common in males with onset of 0CD in childhood. These individuals tend to differ from those without a history of tic disorders in the themes of their OCD symptoms, comorbidity, course, and pattern of familial transmission. A triad of OCD, tic disorder, and attention-deficit/hyperactivity disorder can also be seen in children. Disorders that occur more frequently in individuals with OCD than in those without the disorder include several obsessive-compulsive and related disorders such as body dysmorphic disorder, trichotillomania (hair-pulling disorder), and excoriation (skin—pick- ing) disorder. Finally, an association between OCD and some disorders characterized by impulsivity, such as oppositional defiant disorder, has been reported. OCD is also much more common in individuals with certain other disorders than would be expected based on its prevalence in the general population; when one of those other disorders is diagnosed, the individual should be assessed for 0CD as well. For ex- ample, in individuals with schizophrenia or schizoaffective disorder, the prevalence of 0CD is approximately 12%. Rates of 0CD are also elevated in bipolar disorder; eating dis- orders, such as anorexia nervosa and bulimia nervosa; and Tourette’s disorder. Diagnostic Criteria 300.7 (F45.22)A. Preoccupation with one or more perceived defects or flaws in physical appearance that are not observable or appear slight to others. B. At some point during the course of the disorder, the individual has performed repetitive behaviors (e.g., mirror checking, excessive grooming, skin picking, reassurance seek- ing) or mental acts (e.g., comparing his or her appearance with that of others) in re- sponse to the appearance concerns. C. The preoccupation causes clinically significant distress or impairment in social, occu- pational, or other important areas of functioning. D. The appearance preoccupation is not better explained by concerns with body fat or weight in an individual whose symptoms meet diagnostic criteria for an eating disorder. Specify it:With muscle dysmorphia: The individual is preoccupied with the idea that his or her body build is too small or insufficiently muscular. This specifier is used even if the indi- vidual is preoccupied with other body areas, which is often the case. Specify it:Indicate degree of insight regarding body dysmorphic disorder beliefs (e.g., “I look ugly" or “I look deformed"). With good or fair insight: The individual recognizes that the body dysmorphic disor- der beliefs are definitely or probably not true or that they may or may not be true. With poor insight: The individual thinks that the body dysmorphic disorder beliefs are probably true. With absent insight/delusionai beliefs: The individual is completely convinced that the body dysmorphic disorder beliefs are true. Individuals with body dysmorphic disorder (formerly known as dysmorphophobia) are pre- occupied with one or more perceived defects or flaws in their physical appearance, which they believe look ugly, unattractive, abnormal, or deformed (Criterion A). The perceived flaws are not observable or appear only slight to other individuals. Concerns range from looking ”unattractive" or "not right” to looking ”hideous" or ”like a monster.” Preoccu- pations can focus on one or many body areas, most commonly the skin (e.g., perceived acne, scars, lines, wrinkles, paleness), hair (e.g., ”thinning" hair or ”excessive” body or fa— cial hair), or nose (e.g., size or shape). However, any body area can be the focus of concern (e.g., eyes, teeth, weight, stomach, breasts, legs, face size or shape, lips, chin, eyebrows, genitals). Some individuals are concerned about perceived asymmetry of body areas. The preoccupations are intrusive, unwanted, time-consuming (occurring, on average, 3—8 hours per day), and usually difficult to resist or control. Excessive repetitive behaviors or mental acts (e.g., comparing) are performed in re— sponse to the preoccupation (Criterion B). The individual feels driven to perform these be- haviors, which are not pleasurable and may increase anxiety and dysphoria. They are typically time-consuming and difficult to resist or control. Common behaviors are com- paring one's appearance with that of other individuals; repeatedly checking perceived grooming (e.g., combing, styling, shaving, plucking, or pulling hair); camouflaging (e.g., repeatedly applying makeup or covering disliked areas with such things as a hat, clothing, makeup, or hair); seeking reassurance about how the perceived flaws look; touching dis- liked areas to check them; excessively exercising or weight lifting; and seeking cosmetic procedures. Some individuals excessively tan (e.g., to darken ”pale” skin or diminish per- ceived acne), repeatedly change their clothes (e.g., to camouflage perceived defects), or compulsively shop (e.g., for beauty products). Compulsive skin picking intended to improve perceived skin defects is common and can cause skin damage, infections, or ruptured blood vessels. The preoccupation must cause clinically significant distress or im- pairment in social, occupational, or other important areas of functioning (Criterion C); usually both are present. Body dysmorphic disorder must be differentiated from an eating disorder. Muscle dysmorphia, a form of body dysmorphic disorder occurring almost exclusively in males, consists of preoccupation with the idea that one’s body is too small or insuffi- ciently lean or muscular. Individuals with this form of the disorder actually have a nor- mal-looking body or are even very muscular. They may also be preoccupied with other body areas, such as skin or hair. A majority (but not all) diet, exercise, and/ or lift weights excessively, sometimes causing bodily damage. Some use potentially dangerous anabolic- androgenic steroids and other substances to try to make their body bigger and more mus- cular. Body dysmorphic disorder by proxy is a form of body dysmorphic disorder in which individuals are preoccupied with defects they perceive in another person’s appear- ance. Insight regarding body dysmorphic disorder beliefs can range from good to absent/ delusional (i.e., delusional beliefs consisting of complete conviction that the individual’s view of their appearance is accurate and undistorted). On average, insight is poor; one- third or more of individuals currently have delusional body dysmorphic disorder beliefs. Individuals with delusional body dysmorphic disorder tend to have greater morbidity in some areas (e.g., suicidality), but this appears accounted for by their tendency to have more severe body dysmorphic disorder symptoms. Many individuals with body dysmorphic disorder have ideas or delusions of reference, believing that other people take special notice of them or mock them because of how they look. Body dysmorphic disorder is associated with high levels of anxiety, social anxiety, social avoidance, depressed mood, neuroticism, and perfectionism as well as low extro- version and low self—esteem. Many individuals are ashamed of their appearance and their excessive focus on how they look, and are reluctant to reveal their concerns to others. A majority of individuals receive cosmetic treatment to try to improve their perceived de- fects. Dermatological treatment and surgery are most common, but any type (e.g., dental, electrolysis) may be received. Occasionally, individuals may perform surgery on them- selves. Body dysmorphic disorder appears to respond poorly to such treatments and sometimes becomes worse. Some individuals take legal action or are violent toward the clinician because they are dissatisfied with the cosmetic outcome. Body dysmorphic disorder has been associated with executive dysfunction and visual processing abnormalities, with a bias for analyzing and encoding details rather than ho— listic or configural aspects of visual stimuli. Individuals with this disorder tend to have a bias for negative and threatening interpretations of facial expressions and ambiguous sce- narios. The point prevalence among US. adults is 2.4% (2.5% in females and 2.2% in males). Out- side the United States (i.e., Germany), current prevalence is approximately 1.7%—1.8%, with a gender distribution similar to that in the United States. The current prevalence is 9%—15% among dermatology patients, 7%—8% among US. cosmetic surgery patients, 3%— 16% among international cosmetic surgery patients (most studies), 8% among adult orth- odontia patients, and 10% among patients presenting for oral or maxillofacial surgery. The mean age at disorder onset is 16—17 years, the median age at onset is 15 years, and the most common age at onset is 12—13 years. Two-thirds of individuals have disorder onset before age 18. Subclinical body dysmorphic disorder symptoms begin, on average, at age 12 or 13 years. Subclinical concerns usually evolve gradually to the full disorder, although some individuals experience abrupt onset of body dysmorphic disorder. The disorder appears to usually be chronic, although improvement is likely when evidence-based treatment is received. The disorder’s clinical features appear largely similar in children/ adolescents and adults. Body dysmorphic disorder occurs in the elderly, but little is known about the disorder in this age group. Individuals with disorder onset before age 18 years are more likely to attempt suicide, have more comorbidity, and have gradual (rather than acute) disorder onset than those with adult-onset body dysmorphic disorder. Environmental. \ Body dysmorphic disorder has been associated with high rates of child- hood neglect and abuse. Genetic and physiological. The prevalence of body dysmorphic disorder is elevated in first-degree relatives of individuals with obsessive-compulsive disorder (OCD). Body dysmorphic disorder has been reported internationally. It appears that the disorder values and preferences may influence symptom content to some degree. Taijin kyofusho, included in the traditional Japanese diagnostic system, has a subtype similar to body dys- morphic disorder: shubo—kyofu (”the phobia of a deformed body”). Females and males appear to have more similarities than differences in terms of most clin- ical features— for example, disliked body areas, types of repetitive behaviors, symptom severity, suicidality, comorbidity, illness course, and receipt of cosmetic procedures for body dysmorphic disorder. However, males are more likely to have genital preoccupa- tions, and females are more likely to have a comorbid eating disorder. Muscle dysmorphia occurs almost exclusively in males. Rates of suicidal ideation and suicide attempts are high in both adults and children/ado- lescents with body dysmorphic disorder. Furthermore, risk for suicide appears high in ad- olescents. A substantial proportion of individuals attribute suicidal ideation or suicide attempts primarily to their appearance concerns. Individuals with body dysmorphic dis- order have many risk factors for completed suicide, such as high rates of suicidal ideation and suicide attempts, demographic characteristics associated with suicide, and high rates of comorbid major depressive disorder. Nearly all individuals with body dysmorphic disorder experience impaired psychosocial functioning because of their appearance concerns. Impairment can range from moderate (e.g., avoidance of some social situations) to extreme and incapacitating (e.g., being com- pletely housebound). On average, psychosocial functioning and quality of life are mark— edly poor. More severe body dysmorphic disorder symptoms are associated with poorer functioning and quality of life. Most individuals experience impairment in their job, aca- demic, or role functioning (e.g., as a parent or caregiver), which is often severe (e.g., per- forming poorly, missing school or work, not working). About 20% of youths with body dysmorphic disorder report dropping out of school primarily because of their body dys- morphic disorder symptoms. Impairment in social functioning (e.g., social activities, rela- tionships, intimacy), including avoidance, is common. Individuals may be housebound because of their body dysmorphic disorder symptoms, sometimes for years. A high pro- portion of adults and adolescents have been psychiatrically hospitalized. Normal appearance concerns and cleady noticeable physical defects. Body dysmor- sive appearance-related preoccupations and repetitive behaviors that are time-consuming, are usually difficult to resist or control, and cause clinically significant distress or impair- ment in functioning. Physical defects that are clearly noticeable (i.e., not slight) are not diagnosed as body dysmorphic disorder. However, skin picking as a symptom of body dysmorphic disorder can cause noticeable skin lesions and scarring; in such cases, body dys- morphic disorder should be diagnosed. Eating disorders. In an individual with an eating disorder, concerns about being fat are considered a symptom of the eating disorder rather than body dysmorphic disorder. However, weight concerns may occur in body dysmorphic disorder. Eating disorders and body dysmorphic disorder can be comorbid, in which case both should be diagnosed. Other obsessive-compulsive and related disorders. The preoccupations and repetitive behaviors of body dysmorphic disorder differ from obsessions and compulsions in 0CD in that the former focus only on appearance. These disorders have other differences, such as poorer insight in body dysmorphic disorder. When skin picking is intended to improve the appearance of perceived skin defects, body dysmorphic disorder, rather than excoria- tion (skin-picking) disorder, is diagnosed. When hair removal (plucking, pulling, or other types of removal) is intended to improve perceived defects in the appearance of facial or body hair, body dysmorphic disorder is diagnosed rather than trichotillomania (hair- pulling disorder). Illness anxiety disorder. Individuals with body dysmorphic disorder are not preoccu- pied with having or acquiring a serious illness and do not have particularly elevated levels of somatization. Major depressive disorder. The prominent preoccupation with appearance and exces- pressive disorder. However, major depressive disorder and depressive symptoms are common in individuals with body dysmorphic disorder, often appearing to be secondary to the distress and impairment that body dysmorphic disorder causes. Body dysmorphic morphic disorder are met. ‘ Anxiety disorders. Social anxiety and avoidance are common in body dysmorphic dis- order. However, unlike social anxiety disorder (social phobia), agoraphobia, and avoidant personality disorder, body dysmorphic disorder includes prominent appearance-related preoccupation, which may be delusional, and repetitive behaviors, and the social anxiety and avoidance are due to concerns about perceived appearance defects and the belief or fear that other people will consider these individuals ugly, ridicule them, or reject them be- cause of their physical features. Unlike generalized anxiety disorder, anxiety and worry in body dysmorphic disorder focus on perceived appearance flaws. Psychotic disorders. Many individuals with body dysmorphic disorder have delu- sional appearance beliefs (i.e., complete conviction that their view of their perceived de- fects is accurate), which is diagnosed as body dysmorphic disorder, with absent insight/ delusional beliefs, not as delusional disorder. Appearance-related ideas or delusions of reference are common in body dysmorphic disorder; however, unlike schizophrenia or schizoaffective disorder, body dysmorphic disorder involves prominent appearance pre- occupations and related repetitive behaviors, and disorganized behavior and other psy— chotic symptoms are absent (except for appearance beliefs, which may be delusional). Other disorders and symptoms. Body dysmorphic disorder should not be diagnosed if the preoccupation is limited to discomfort with or a desire to be rid of one's primary and / or secondary sex characteristics in an individual with gender dysphoria or if the preoccu- pation focuses on the belief that one emits a foul or offensive body odor as in olfactory reference syndrome (which is not a DSM-5 disorder). Body identity integrity disorder (apotemnophilia) (which is not a DSM-5 disorder) involves a desire to have a limb ampu- tated to correct an experience of mismatch between a person’s sense of body identity and his or her actual anatomy. However, the concern does not focus on the limb’s appearance, as it would in body dysmorphic disorder. Karo, a culturally related disorder that usually occurs in epidemics in Southeastern Asia, consists of a fear that the penis (labia, nipples, or breasts in females) is shrinking or retracting and will disappear into the abdomen, often accompanied by a belief that death will result. Koro differs from body dysmorphic disor- der in several ways, including a focus on death rather than preoccupation with perceived ugliness. Dysmorphic concern (which is not a DSM-5 disorder) is a much broader construct than, and is not equivalent to, body dysmorphic disorder. It involves symptoms reflecting an overconcern with slight or imagined flaws in appearance. Major depressive disorder is the most common comorbid disorder, with onset usually af- ter that of body dysmorphic disorder. Comorbid social anxiety disorder (social phobia), OCD, and substance-related disorders are also common.Diagnostic Criteria 300.3 (F42)A. Persistent difficulty discarding or parting with possessions, regardless of their actual value. B. This difficulty is due to a perceived need to save the items and to distress associated with discarding them. C. The difficulty discarding possessions results in the accumulation of possessions that use. If living areas are uncluttered, it is only because of the interventions of third parties (e.g., family members, cleaners, authorities). D. The hoarding causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning (including maintaining a safe environ- ment for self and others). E. The hoarding is not attributable to another medical condition (e.g., brain injury, cere- brovascular disease, Prader-Willi syndrome). F. The hoarding is not better explained by the symptoms of another mental disorder (e.g., obsessions in obsessive-compulsive disorder, decreased energy in major depressive disorder, delusions in schizophrenia or another psychotic disorder, cognitive deficits in major neurocognitive disorder, restricted interests in autism spectrum disorder). Specify it:With excessive acqulsition: If difficulty discarding possessions is accompanied by ex- cessive acquisition of items that are not needed or for which there is no available space. Specify it:With good or fair insight: The individual recognizes that hoarding-related beliefs and behaviors (pertaining to difficulty discarding items, clutter, or excessive acquisition) are problematic. With poor insight: The individual is mostly convinced that hoarding-related beliefs and behaviors (pertaining to difficulty discarding items, clutter. or excessive acquisi- tion) are not problematic despite evidence to the contrary. With absent insight/delusional beliefs: The individual is completely convinced that hoarding-related beliefs and behaviors (pertaining to difficulty discarding items, clutter, or excessive acquisition) are not problematic despite evidence to the contrary. With excessive acquisition. Approximately 80%—90% of individuals with hoarding disorder display excessive acquisition. The most frequent form of acquisition is excessive buying, followed by acquisition of free items (e.g., leaflets, items discarded by others). Stealing is less common. Some individuals may deny excessive acquisition when first as- sessed, yet it may appear later during the course of treatment. Individuals with hoarding disorder typically experience distress if they are unable to or are prevented from acquiring items. The essential feature of hoarding disorder is persistent difficulties discarding or parting with possessions, regardless of their actual value (Criterion A). The term persistent indi- to excessive clutter, such as inheriting property. The difficulty in discarding possessions noted in Criterion A refers to any form of discarding, including throwing away, selling, giving away, or recycling. The main reasons given for these difficulties are the perceived utility or aesthetic value of the items or strong sentimental attachment to the possessions. Some individuals feel responsible for the fate of their possessions and often go to great lengths to avoid being wasteful. Fears of losing important information are also common. The most commonly saved items are newspapers, magazines, old clothing, bags, books, mail, and paperwork, but virtually any item can be saved. The nature of items is not lim- ited to possessions that most other people would define as useless or of limited value. Many individuals collect and save large numbers of valuable things as well, which are of- ten found in piles mixed with other less valuable items. Individuals with hoarding disorder purposefully save possessions and experience dis- tress when facing the prospect of discarding them (Criterion B). This criterion emphasizes that the saving of possessions is intentional, which discriminates hoarding disorder from other forms of psychopathology that are characterized by the passive accumulation of items or the absence of distress when possessions are removed. Individuals accumulate large numbers of items that fill up and clutter active living ar- eas to the extent that their intended use is no longer possible (Criterion C). For example, the individual may not be able to cook in the kitchen, sleep in his or her bed, or sit in a chair. If the space can be used, it is only with great difficulty. Clutter is defined as a large group of usually unrelated or marginally related objects piled together in a disorganized fashion in spaces designed for other purposes (e.g., tabletops, floor, hallway). Criterion C emphasizes the ”active" living areas of the home, rather than more peripheral areas, such as garages, attics, or basements, that are sometimes cluttered in homes of individuals with- out hoarding disorder. However, individuals with hoarding disorder often have posses— sions that spill beyond the active living areas and can occupy and impair the use of other spaces, such as vehicles, yards, the workplace, and friends’ and relatives’ houses. In some cases, living areas may be uncluttered because of the intervention of third parties (e.g., family members, cleaners, local authorities). Individuals who have been forced to clear the lack of clutter is due to a third-party intervention. Hoarding disorder contrasts with normative collecting behavior, which is organized and systematic, even if in some cases the actual amount of possessions may be similar to the amount accumulated by an indi- vidual with hoarding disorder. Normative collecting does not produce the clutter, dis- tress, or impairment typical of hoarding disorder. Symptoms (i.e., difficulties discarding and / or clutter) must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning, in- cluding maintaining a safe environment for self and others (Criterion D). In some cases, particularly when there is poor insight, the individual may not report distress, and the im— pairment may be apparent only to those around the individual. However, any attempts to discard or clear the possessions by third parties result in high levels of distress. Other common features of hoarding disorder include indecisiveness, perfectionism, avoidance, procrastination, difficulty planning and organizing tasks, and distractibility. Some individuals with hoarding disorder live in unsanitary conditions that may be a log- ical consequence of severely cluttered spaces and/ or that are related to planning and or- ganizing difficulties. Animal hoarding can be defined as the accumulation of a large number of animals and a failure to provide minimal standards of nutrition, sanitation, and veter- inary care and to act on the deteriorating condition of the animals (including disease, star- vation, or death) and the environment (e.g., severe overcrowding, extremely unsanitary conditions). Animal hoarding may be a special manifestation of hoarding disorder. Most individuals who hoard animals also hoard inanimate objects. The most prominent differ- ences between animal and object hoarding are the extent of unsanitary conditions and the poorer insight in animal hoarding. Nationally representative prevalence studies of hoarding disorder are not available. Com— munity surveys estimate the point prevalence of clinically significant hoarding in the United States and Europe to be approximately 2%—6%. Hoarding disorder affects both males and females, but some epidemiological studies have reported a significantly greater prevalence among males. This contrasts with clinical samples, which are predominantly female. Hoarding symptoms appear to be almost three times more prevalent in older adults (ages 55—94 years) compared with younger adults (ages 34—44 years). Hoarding appears to begin early in life and spans well into the late stages. Hoarding symp- toms may first emerge around ages 11—15 years, start interfering with the individual’s ev- eryday functioning by the mid—ZOs, and cause clinically significant impairment by the mid-30s. Participants in clinical research studies are usually in their 505. Thus, the severity of hoarding increases with each decade of life. Once symptoms begin, the course of hoard- ing is often chronic, with few individuals reporting a waxing and waning course. Pathological hoarding in children appears to be easily distinguished from develop- mentally adaptive saving and collecting behaviors. Because children and adolescents typically do not control their living environment and discarding behaviors, the possible intervention of third parties (e.g., parents keeping the spaces usable and thus reducing in- terference) should be considered when making the diagnosis. Temperamental. Indecisiveness is a prominent feature of individuals with hoarding dis- order and their first-degree relatives. Environmental. Individuals with hoarding disorder often retrospectively report stressful and traumatic life events preceding the onset of the disorder or causing an exacerbation. Genetic and physiological. Hoarding behavior is familial, with about 50% of individu- als who hoard reporting having a relative who also hoards. Twin studies indicate that ap- proximately 50% of the variability in hoarding behavior is attributable to additive genetic factors. While most of the research has been done in Western, industrialized countries and urban communities, the available data from non-Westem and developing countries suggest that hoarding is a universal phenomenon with consistent clinical features. The key features of hoarding disorder (i.e., difficulties discarding, excessive amount of clutter) are generally comparable in males and females, but females tend to display more excessive acquisition, particularly excessive buying, than do males. Functional Consequences of Hoarding DisorderClutter impairs basic activities, such as moving through the house, cooking, cleaning, per- sonal hygiene, and even sleeping. Appliances may be broken, and utilities such as water and electricity may be disconnected, as access for repair work may be difficult. Quality of life is often considerably impaired. In severe cases, hoarding can put individuals at risk for fire, falling (especially elderly individuals), poor sanitation, and other health risks. Hoard- ing disorder is associated with occupational impairment, poor physical health, and high social service utilization. Family relationships are frequently under great strain. Conflict with neighbors and local authorities is common, and a substantial proportion of individ- uals with severe hoarding disorder have been involved in legal eviction proceedings, and some have a history of eviction. Other medical conditions. Hoarding disorder is not diagnosed if the symptoms are judged to be a direct consequence of another medical condition (Criterion E), such as trau- matic brain injury, surgical resection for treatment of a tumor or seizure control, cerebro- vascular disease, infections of the central nervous system (e.g., herpes simplex encephalitis), or neurogenetic conditions such as Prader-Willi syndrome. Damage to the anterior ven- tromedial prefrontal and cingulate cortices has been particularly associated with the ex- cessive accumulation of objects. In these individuals, the hoarding behavior is not present prior to the onset of the brain damage and appears shortly after the brain damage occurs. Some of these individuals appear to have little interest in the accumulated items and are able to discard them easily or do not care if others discard them, whereas others appear to be very reluctant to discard anything. Neurodevelopmental disorders. Hoarding disorder is not diagnosed if the accumula- tion of objects is judged to be a direct consequence of a neurodevelopmental disorder, such as autism spectrum disorder or intellectual disability (intellectual developmental disorder). Schizophrenia spectrum and other psychotic disorders. Hoarding disorder is not di— agnosed if the accumulation of objects is judged to be a direct consequence of delusions or negative symptoms in schizophrenia spectrum and other psychotic disorders. Major depressive episode. Hoarding disorder is not diagnosed if the accumulation of objects is judged to be a direct consequence of psychomotor retardation, fatigue, or loss of energy during a major depressive episode. Obsessive-compulsive disorder. Hoarding disorder is not diagnosed if the symptoms are judged to be a direct consequence of typical obsessions or compulsions, such as fears of contamination, harm, or feelings of incompleteness in obsessive-compulsive disorder (OCD). Feelings of incompleteness (e.g., losing one’s identity, or having to document and preserve all life experiences) are the most frequent OCD symptoms associated with this form of hoarding. The accumulation of objects can also be the result of persistently avoid- ing onerous rituals (e.g., not discarding objects in order to avoid endless washing or check- ing rituals). \ In OCD, the behavior is generally unwanted and highly distressing, and the individual ex- periences no pleasure or reward from it. Excessive acquisition is usually not present; if exces- sive acquisition is present, items are acquired because of a specific obsession (e.g., the need to buy items that have been accidentally touched in order to avoid contaminating other people), not because of a genuine desire to possess the items. Individuals who hoard in the context of OCD are also more likely to accumulate bizarre items, such as trash, feces, urine, nails, hair, used diapers, or rotten food. Accumulation of such items is very unusual in hoarding disorder. When severe hoarding appears concurrently with other typical symptoms of 0CD but is judged to be independent from these symptoms, both hoarding disorder and 0CD may be diagnosed. Neurocognitive disorders. Hoarding disorder is not diagnosed if the accumulation of objects is judged to be a direct consequence of a degenerative disorder, such as neurocog- nitive disorder associated with frontotemporal lobar degeneration or Alzheimer’s disease. Typically, onset of the accumulating behavior is gradual and follows onset of the neuro- cognitive disorder. The accumulating behavior may be accompanied by self—neglect and severe domestic squalor, alongside other neuropsychiatric symptoms, such as disinhibi- tion, gambling, rituals/stereotypies, tics, and self—injurious behaviors. Approximately 75% of individuals with hoarding disorder have a comorbid mood or anx- iety disorder. The most common comorbid conditions are major depressive disorder (up to 50% of cases), social anxiety disorder (social phobia), and generalized anxiety disorder. Approximately 20% of individuals with hoarding disorder also have symptoms that meet diagnostic criteria for OCD. These comorbidities may often be the main reason for consul- tation, because individuals are unlikely to spontaneously report hoarding symptoms, and these symptoms are often not asked about in routine clinical interviews. Diagnostic Criteria 312.39 (F63.2)A. Recurrent pulling out of one’s hair, resulting in hair loss. B. Repeated attempts to decrease or stop hair pulling.C. The hair pulling causes clinically significant distress or impairment in social. occupa- tional, or other important areas of functioning. D. The hair pulling or hair loss is not attributable to another medical condition (e.g., a der- matological condition). E. The hair pulling is not better explained by the symptoms of another mental disorder (e.g., attempts to improve a perceived defect or flaw in appearance in body dysmorphic disorder). The essential feature of trichotillomania (hair-pulling disorder) is the recurrent pulling out of one’s own hair (Criterion A). Hair pulling may occur from any region of the body in which hair grows; the most common sites are the scalp, eyebrows, and eyelids, while less common sites are axillary, facial, pubic, and peri-rectal regions. Hair-pulling sites may vary over time. Hair pulling may occur in brief episodes scattered throughout the day or during less frequent but more sustained periods that can continue for hours, and such hair pulling may endure for months or years. Criterion A requires that hair pulling lead to hair loss, although individuals with this disorder may pull hair in a widely distributed pattern (i.e., pulling single hairs from all over a site) such that hair loss may not be clearly visible. Alternatively, individuals may attempt to conceal or camouflage hair loss (e.g., by using makeup, scarves, or wigs). Individuals with trichotillomania have made repeated at- tempts to decrease or stop hair pulling (Criterion B). Criterion C indicates that hair pulling causes clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning. The term distress includes negative affects that may be experi- enced by individuals with hair pulling, such as feeling a loss of control, embarrassment, and shame. Significant impairment may occur in several different areas of functioning (e.g., social, occupational, academic, and leisure), in part because of avoidance of work, school, or other public situations. Hair pulling may be accompanied by a range of behaviors or rituals involving hair. Thus, individuals may search for a particular kind of hair to pull (e.g., hairs with a specific tex- ture or color), may try to pull out hair in a specific way (e.g., so that the root comes out in- tact), or may visually examine or tactilely or orally manipulate the hair after it has been pulled (e.g., rolling the hair between the fingers, pulling the strand between the teeth, bit- ing the hair into pieces, or swallowing the hair). be triggered by feelings of anxiety or boredom, may be preceded by an increasing sense of tension (either immediately before pulling out the hair or when attempting to resist the urge to pull), or may lead to gratification, pleasure, or a sense of relief when the hair is pulled out. Hair-pulling behavior may involve varying degrees of conscious awareness, with some individuals displaying more focused attention on the hair pulling (with pre- ceding tension and subsequent relief), and other individuals displaying more automatic behavior (in which the hair pulling seems to occur without full awareness). Many individ- uals report a mix of both behavioral styles. Some individuals experience an "itch-like” or tingling sensation in the scalp that is alleviated by the act of pulling hair. Pain does not usually accompany hair pulling. Patterns of hair loss are highly variable. Areas of complete alopecia, as well as areas of thinned hair density, are common. When the scalp is involved, there may be a predilection for pulling out hair in the crown or parietal regions. There may be a pattern of nearly com- plete baldness except for a narrow perimeter around the outer margins of the scalp, par- ticularly at the nape of the neck (”tonsure trichotillomania”). Eyebrows and eyelashes may be completely absent. Hair pulling does not usually occur in the presence of other individuals, except imme— diate family members. Some individuals have urges to pull hair from other individuals and may sometimes try to find opportunities to do so surreptitiously. Some individuals may pull hairs from pets, dolls, and other fibrous materials (e.g., sweaters or carpets). Some individuals may deny their hair pulling to others. The majority of individuals with trichotillomania also have one or more other body-focused repetitive behaviors, including skin picking, nail biting, and lip chewing. In the general population, the 12—month prevalence estimate for trichotillomania in adults and adolescents is 1%—2%. Females are more frequently affected than males, at a ratio of approximately 10:1. This estimate likely reflects the true gender ratio of the condition, al- titudes regarding appearance (e.g., acceptance of normative hair 1055 among males). Among children with trichotillomania, males and females are more equally represented. Hair pulling may be seen in infants, and this behavior typically resolves during early devel- opment. Onset of hair pulling in trichotillomania most commonly coincides with, or follows the onset of, puberty. Sites of hair pulling may vary over time. The usual course of trichotillo- mania is chronic, with some waxing and waning if the disorder is untreated. Symptoms may possibly worsen in females accompanying hormonal changes (e.g., menstruation, perimeno— pause). For some individuals, the disorder may come and go for weeks, months, or years at a time. A minority of individuals remit without subsequent relapse within a few years of onset. Genetic and physiological. There is evidence for a genetic vulnerability to trichotillo— mania. The disorder is more common in individuals with obsessive-compulsive disorder (OCD) and their first-degree relatives than in the general population. Trichotillomania appears to manifest similarly across cultures, although there is a paucity of data from non-Westem regions. Most individuals with trichotillomania admit to hair pulling; thus, dermatopathological diagnosis is rarely required. Skin biopsy and dermoscopy (or trichoscopy) of trichotillo- mania are able to differentiate the disorder from other causes of alopecia. In trichotil- lomania, dermoscopy shows a range of characteristic features, including decreased hair density, short vellus hair, and broken hairs with different shaft lengths. Trichotillomania is associated with distress as well as with social and occupational impair- ment. There may be irreversible damage to hair growth and hair quality. Infrequent med- ical consequences of trichotillomania include digit purpura, musculoskeletal injury (e.g., carpal tunnel syndrome; back, shoulder and neck pain), blepharitis, and dental damage (e.g., worn or broken teeth due to hair biting). Swallowing of hair (trichophagia) may lead to trichobezoars, with subsequent anemia, abdominal pain, hematemesis, nausea and vomiting, bowel obstruction, and even perforation. Normative hair removal/manipulation. Trichotillomania should not be diagnosed when hair removal is performed solely for cosmetic reasons (i.e., to improve one’s physical ap- pearance). Many individuals twist and play with their hair, but this behavior does not usu- ally qualify for a diagnosis of trichotillomania. Some individuals may bite rather than pull hair; again, this does not qualify for a diagnosis of trichotillomania. Other obsessive—compulsive and related disorders. Individuals with OCD and sym- metry concerns may pull out hairs as part of their symmetry rituals, and individuals with body dysmorphic disorder may remove body hair that they perceive as ugly, asymmetri- cal, or abnormal; in such cases a diagnosis of trichotillomania is not given. The description related disorder excludes individuals who meet diagnostic criteria for trichotillomania. Neurodevelopmental disorders. In neurodevelopmental disorders, hair pulling may meet the definition of stereotypies (e.g., in stereotypic movement disorder). Tics (in tic dis- orders) rarely lead to hair pulling. Psychotic disorder. Individuals with a psychotic disorder may remove hair in response to a delusion or hallucination. Trichotillomania is not diagnosed in such cases. Another medical condition. Trichotillomania is not diagnosed if the hair pulling or hair loss is attributable to another medical condition (e.g., inflammation of the skin 01‘ other der- matological conditions). Other causes of scarring alopecia (e.g., alopecia areata, androgenic alopecia, telogen effluvium) or nonscarring alopecia (e.g., chronic discoid lupus erythema- tosus, lichen planopilaris, central centrifugal cicatricial alopecia, pseudopelade, folliculitis decalvans, dissecting folliculitis, acne keloidalis nuchae) should be considered in individu- als with hair loss who deny hair pulling. Skirt biopsy or dermoscopy can be used to differ- entiate individuals with trichotillomania from those with dermatological disorders. Substance-related disorders. Hair-pulling symptoms may be exacerbated by certain substances—for example, stimulants—but it is less likely that substances are the primary cause of persistent hair pulling. Trichotillomania is often accompanied by other mental disorders, most commonly major depressive disorder and excoriation (skin-picking) disorder. Repetitive body-focused symptoms other than hair pulling or skin picking (e.g. nail biting) occur in the majority of individuals with trichotillomania and may deserve an additional diagnosis of other spec- ified obsessive-compulsive and related disorder (i.e., body-focused repetitive behavior disorder). Diagnostic Criteria 698.4 (L98.1)A. Recurrent skin picking resulting in skin lesions.B. Repeated attempts to decrease or stop skin picking.C. The skin picking causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. D. The skin picking is not attributable to the physiological effects of a substance (e.g., co- caine) or another medical condition (e.g., scabies). E. The skin picking is not better explained by symptoms of another mental disorder (e.g., delusions or tactile hallucinations in a psychotic disorder, attempts to improve a per- ceived detect or flaw in appearance in body dysmorphic disorder, stereotypies in ste- reotypic movement disorder, or intention to harm oneself in nonsuicidal self-injury). The essential feature of excoriation (skin-picking) disorder is recurrent picking at one’s own skin (Criterion A). The most commonly picked sites are the face, arms, and hands, but many individuals pick from multiple body sites. Individuals may pick at healthy skin, at minor skin irregularities, at lesions such as pimples or calluses, or at scabs from previous picking. Most individuals pick with their fingernails, although many use tweezers, pins, or other objects. In addition to skin picking, there may be skin rubbing, squeezing, lancing, and biting. Individuals with excoriation disorder often spend significant amounts of time on their picking behavior, sometimes several hours per day, and such skin picking may endure for months or years. Criterion A requires that skin picking lead to skin lesions, al- though individuals with this disorder often attempt to conceal or camouflage such lesions (e.g., with makeup or clothing). Individuals with excoriation disorder have made repeated attempts to decrease or stop skin picking (Criterion B). ment in social, occupational, or other important areas of functioning. The term distress in- cludes negative affects that may be experienced by individuals with skin picking, such as feeling a loss of control, embarrassment, and shame. Significant impairment may occur in several different areas of functioning (e.g., social, occupational, academic, and leisure), in part because of avoidance of social situations. Skin picking may be accompanied by a range of behaviors or rituals involving skin or scabs. Thus, individuals may search for a particular kind of scab to pull, and they may examine, play with, or mouth or swallow the skin after it has been pulled. Skin picking may also be pre- ceded or accompanied by various emotional states. Skin picking may be triggered by feelings of anxiety or boredom, may be preceded by an increasing sense of tension (either immedi- ately before picking the skin or when attempting to resist the urge to pick), and may lead to gratification, pleasure, or a sense of relief when the skin or scab has been picked. Some indi- viduals report picking in response to a minor skin irregularity or to relieve an uncomfortable bodily sensation. Pain is not routinely reported to accompany skin picking. Some individuals engage in skin picking that is more focused (i.e., with preceding tension and subsequent re- lief), whereas others engage in more automatic picking (i.e., when skin picking occurs with- out preceding tension and without full awareness), and many have a mix of both behavioral styles. Skin picking does not usually occur in the presence of other individuals, except im- mediate family members. Some individuals report picking the skin of others. In the general population, the lifetime prevalence for excoriation disorder in adults is 1.4% or somewhat higher. Three-quarters or more of individuals with the disorder are female. This likely reflects the true gender ratio of the condition, although it may also reflect dif- ferential treatment seeking based on gender or cultural attitudes regarding appearance. Although individuals with excoriation disorder may present at various ages, the skin pick- ing most often has onset during adolescence, commonly coinciding with or following the onset of puberty. The disorder frequently begins with a dermatological condition, such as acne. Sites of skin picking may vary over time. The usual course is chronic, with some waxing and waning if untreated. For some individuals, the disorder may come and go for weeks, months, or years at a time. Genetic and physiological. Excoriation disorder is more common in individuals with general population. Most individuals with excoriation disorder admit to skin picking; therefore, dermato- pathological diagnosis is rarely required. However, the disorder may have characteristic features on histopathology. Excoriation disorder is associated with distress as well as with social and occupational im- pairment. The majority of individuals with this condition spend at least 1 hour per day picking, thinking about picking, and resisting urges to pick. Many individuals report avoiding social or entertainment events as well as going out in public. A majority of indi- viduals with the disorder also report experiencing work interference from skin picking on at least a daily or weekly basis. A significant proportion of students with excoriation disor- der report having missed school, having experienced difficulties managing responsibilities at school, or having had difficulties studying because of skin picking. Medical complica- tions of skin picking include tissue damage, scarring, and infection and can be life-threaten- ing. Rarely, synovitis of the wrists due to chronic picking has been reported. Skin picking often results in significant tissue damage and scarring. It frequently requires antibiotic treat- ment for infection, and on occasion it may require surgery. Psychotic disorder. Skin picking may occur in response to a delusion (i.e., parasitosis) or tactile hallucination (i.e., formication) in a psychotic disorder. In such cases, excoriation disorder should not be diagnosed. Other obsessive-compulsive and related disorders. Excessive washing compulsions in response to contamination obsessions in individuals with 0CD may lead to skin lesions, and skin picking may occur in individuals with body dysmorphic disorder who pick their skin solely because of appearance concerns; in such cases, excoriation disorder should not be diagnosed. The description of body-focused repetitive behavior disorder in other spec- meet diagnostic criteria for excoriation disorder. Neurodevelopmental disorders. While stereotypic movement disorder may be charac- terized by repetitive self—injurious behavior, onset is in the early developmental period. For example, individuals with the neurogenetic condition Prader-Willi syndrome may have early onset of skin picking, and their symptoms may meet criteria for stereotypic movement disorder. While tics in individuals with Tourette’s disorder may lead to self- injury, the behavior is not tic-like in excoriation disorder. Somatic symptom and related disorders. Excoriation disorder is not diagnosed if the skin lesion is primarily attributable to deceptive behaviors in factitious disorder. Other disorders. Excoriation disorder is not diagnosed if the skin picking is primarily attributable to the intention to harm oneself that is characteristic of nonsuicidal self-injury. Other medical conditions. Excoriation disorder is not diagnosed if the skin picking is primarily attributable to another medical condition. For example, scabies is a dermatolog- ical condition invariably associated with severe itching and scratching. However, excori- condition. For example, acne may lead to some scratching and picking, which may also be associated with comorbid excoriation disorder. The differentiation between these two clinical situations (acne with some scratching and picking vs. acne with comorbid excori- ation disorder) requires an assessment of the extent to which the individual’s skin picking has become independent of the underlying dermatological condition. Substance/medication-induced disorders. Skin-picking symptoms may also be induced by certain substances (e.g., cocaine), in which case excoriation disorder should not be di- agnosed. If such skin picking is clinically significant, then a diagnosis of substance/med- ication-induced obsessive-compulsive and related disorder should be considered. Excoriation disorder is often accompanied by other mental disorders. Such disorders in- clude OCD and trichotillomania (hair-pulling disorder), as well as major depressive dis- order. Repetitive body-focused symptoms other than skin picking and hair pulling (e.g., nail biting) occur in many individuals with excoriation disorder and may deserve an ad- ditional diagnosis of other specified obsessive-compulsive and related disorder (i.e., body-focused repetitive behavior disorder). A. Obsessions, compulsions. skin picking, hair pulling, other body-tocused repetitive be- haviors, or other symptoms characteristic of the obsessive-compulsive and related dis- orders predominate in the clinical picture. B. There is evidence from the history, physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or withdrawal or after exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by an obsessive-compulsive and related disor- der that is not substance/medication-induced. Such evidence of an independent ob- sessive-compulsive and related disorder could include the following: The symptoms precede the onset of the substance/medication use; the symptoms persist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence suggesting the exis- tence of an independent non-substance/medication-induced obsessive-compul- sive and related disorder (e.g., a history of recurrent non-substance/medication- related episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Note: This diagnosis should be made in addition to a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and are sufficiently severe to warrant clinical attention. Coding note: The lCD-Q-CM and ICD-10-CM codes for the [specific substance/medica- tion]-induced obsessive-compulsive and related disorders are indicated in the table below. Note that the |CD-10-CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the substance-induced obsessive-compulsive and related disorder, the 4th position character is “1’ and the clinician should record “mild [substance] use disorder" before the substance-induced obsessive-compulsive and related disorder (e.g., “mild co- caine use disorder with cocaine-induced obsessive-compulsive and related disorder"). It a moderate or severe substance use disorder is comorbid with the substance-induced ob- sessive-compulsive and related disorder, the 4th position character is ‘,"2 and the clinician should record “moderate [substance] use disorder” or “severe [substance] Use disorder," depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one—time heavy use of the substance), then the 4th position character is “9,” and the clinician should record only the substance-induced ob- sessive-oompulsive and related disorder. With use disorder, Without disorder, moderate useAmphetamine (or other 292.89 F15.188 F15.288 F15.988Cocaine 292.89 F14.188 Fl 4.288 F14.988Other (or unknown) substance 292.89 F19.188 F19.288 F19.988Specify it (see Table 1 in the chapter “Su bstance-Related and Addictive Disorders” for di- agnoses associated with substance class): With onset during intoxication: If the criteria are met for intoxication with the sub- stance and the symptoms develop during intoxication. Witii onset during withd rawai: If criteria are met for withdrawal from the substance and the symptoms develop during, or shorfly after, withdrawal. Witli onset after medication use: Symptoms may appear either at initiation of medi- cation or after a modification or change in use. ICD-9-CM. The name of the substance/ medication—induced obsessive—compulsive and related disorderbegins With the specific substance (e.g., cocaine) that is presumed to be causing the obsessive—compulsive and related symptoms. The diagnostic code is selected from the table included in the criteria set, Which is based on the drug class. For substances that do not fit into any ofthe classes, the code for "other sub stance" should be used; and in cases in Which a substance isjudged to be an etiological factor but the specific class ofsub stance is unknown, the category "unknown substance" should be used. The name ofthe disord er is follow ed by the specification ofonset (i.e., onset during in toxication, onset during Withdraw a1, With onset after med ication use). Unlike the record ing procedures for ICD—IO—CM, Which combine the substance—induced disorder and substance use disorder into a single code, for ICD—9—CM a separate diagnostic code is given for the substance use disorder. For example, in the case ofrepetitive behaviors oc curring during intoxication in a man With a severe cocaine use disorder, the diagno sis is 292.89 cocaine—induced obsessive—compulsive and related disorder, With onset during in toxication. An additional diagnosis of 304.20 severe cocaine use disorder is also given. When more than one substance is jud ged to play a significant role in the development of the obsessive—compulsive and related disorder, each should be listed separately. |CD-10-CM. The name ofthe substance/ medication—induced obsessive—compulsive and re lated disorder begins With the specific substance (e.g., cocaine) that is presumed to be causing the obsessive—compulsive and related symptoms. The diagnostic code is selected from the ta ble included in the criteria set, Which is based on the drug class and presence or absence ofa comorbid substance use disorder. For substances that do not fit into any of the classes, the code for "other substance" With no comorbid substance use should be used; and in cases in Which a sub stance isjudged to be an etiological factorbut the specific class ofsub stance is un known, the category "unknown substance" With no comorbid substance use should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word "with," followed by the name of the substance-induced ob- sessive-compulsive and related disorder, followed by the specification of onset (i.e., onset dur- ing intoxication, onset during withdrawal, with onset after medication use). For example, in the case of repetitive behaviors occurring during intoxication in a man with a severe cocaine use disorder, the diagnosis is F14.288 severe cocaine use disorder with cocaine-induced obses- sive—compulsive and related disorder, with onset during intoxication. A separate diagnosis of the comorbid severe cocaine use disorder is not given. If the substance-induced obsessive- compulsive and related disorder occurs without a comorbid substance use disorder (e.g., after a one-time heavy use of the substance), no accompanying substance use disorder is noted (e.g., F15.988 amphetamine—induced obsessive—compulsive and related disorder, with onset during intoxication). When more than one substance is judged to play a significant role in the devel- opment of the obsessive—compulsive and related disorder, each should be listed separately. The essential features of substance/medication-induced obsessive-compulsive and related disorder are prominent symptoms of an obsessive—compulsive and related disorder (Criterion A) that are judged to be attributable to the effects of a substance (e.g., drug of abuse, medica- tion). The obsessive-compulsive and related disorder symptoms must have developed during or soon after substance intoxication or withdrawal or after exposure to a medication or toxin, and the substance/medication must be capable of producing the symptoms (Criterion B). Sub- stance/medication—induced obsessive-compulsive and related disorder due to a prescribed treatment for a mental disorder or general medical condition must have its onset while the in- dividual is receiving the medication. Once the treatment is discontinued, the obsessive-com- pulsive and related disorder symptoms will usually improve or remit within days to several weeks to 1 month (depending on the half-life of the substance/medication). The diagnosis of given if onset of the obsessive-compulsive and related disorder symptoms precedes the sub- stance intoxication or medication use, or if the symptoms persist for a substantial period of time, usually longer than 1 month, from the time of severe intoxication or withdrawal. If the obsessive—compulsive and related disorder symptoms persist for a substantial period of time, other causes for the symptoms should be considered. The substance/ medication-induced ob- sessive-compulsive and related disorder diagnosis should be made in addition to a diagnosis of substance intoxication only when the symptoms in Criterion A predominate in the clinical picture and are sufficiently severe to warrant independent clinical attention Obsessions, compulsions, hair pulling, skin picking, or other body-focused repetitive be- haviors can occur in association with intoxication with the following classes of substances: stimulants (including cocaine) and other (or unknown) substances. Heavy metals and tox- ins may also cause obsessive-compulsive and related disorder symptoms. Laboratory as- sessments (e.g., urine toxicology) may be useful to measure substance intoxication as part of an assessment for obsessive-compulsive and related disorders. In the general population, the very limited data that are available indicate that substance- induced obsessive-compulsive and related disorder is very rare. Substance intoxication. Obsessive-compulsive and related disorder symptoms may oc~ cur in substance intoxication. The diagnosis of the substance-specific intoxication will usu- ally suffice to categorize the symptom presentation. A diagnosis of an obsessive-compulsive and related disorder should be made in addition to substance intoxication when the symp- toms are judged to be in excess of those usually associated with intoxication and are suf- ficiently severe to warrant independent clinical attention. Obsessive-compulsive and related disorder (i.e., not induced by a substance). Sub- stance/ medication-induced obsessive-compulsive and related disorder is judged to be etiologically related to the substance/medication. Substance/medication-induced obses- sive-compulsive and related disorder is distinguished from a primary obsessive-compul- sive and related disorder by considering the onset, course, and other factors with respect to substances/ medications. For drugs of abuse, there must be evidence from the history, physical examination, or laboratory findings for use or intoxication. Substance/medica— tion-induced obsessive-compulsive and related disorder arises only in association with in- toxication, whereas a primary obsessive-compulsive and related disorder may precede the onset of substance/medication use. The presence of features that are atypical of a primary obsessive-compulsive and related disorder, such as atypical age at onset of symptoms, may suggest a substance-induced etiology. A primary obsessive-compulsive and related disorder diagnosis is warranted if the symptoms persist for a substantial period of time (about 1 month or longer) after the end of the substance intoxication or the individual has a history of an obsessive-compulsive and related disorder. Obsessive-compulsive and related disorder due to another medical condition. If the obsessive-compulsive and related disorder symptoms are attributable to another medical condition (i.e., rather than to the medication taken for the other medical condition), obses- sive-compulsive and related disorder due to another medical condition should be diag- nosed. The history often provides the basis for judgment. At times, a change in the treatment for the other medical condition (e.g., medication substitution or discontinua- tion) may be needed to determine whether or not the medication is the causative agent (in which case the symptoms may be better explained by substance/medication-induced ob- sessive-compulsive and related disorder). If the disturbance is attributable to both another medical condition and substance use, both diagnoses (i.e., obsessive-compulsive and related disorder due to another medical condition and substance/medication-induced obsessive- compulsive and related disorder) may be given. When there is insufficient evidence to de- termine whether the symptoms are attributable to either a substance/medication or an- other medical condition or are primary (i.e., attributable to neither a substance/medication nor another medical condition), a diagnosis of other specified or unspecified obsessive- compulsive and related disorder would be indicated. Delirium. If obsessive-compulsive and related disorder symptoms occur exclusively during the course of delirium, they are considered to be an associated feature of the delir- ium and are not diagnosed separately. Due to Another Medical ConditionDiagnostic Criteria 294.8 (F06.8)A. Obsessions, compulsions. preoccupations with appearance, hoarding, skin picking, hair pulling, other body-focused repetitive behaviors, or other symptoms characteristic of obsessive-compulsive and related disorder predominate in the clinical picture. B. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct pathophysiological consequence of another medical condition. C. The disturbance is not better explained by another mental disorder. Obsessive-Compulsive and Related Disorder Due to Another Medical Condition 261 D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Specify it:With obsessive-compulsive disorder—like symptoms: It obsessive-compulsive dis- order—like symptoms predominate in the clinical presentation. With appearance preoccupations: If preoccupation with perceived appearance de- fects or flaws predominates in the clinical presentation. With hoarding symptoms: It hoarding predominates in the clinical presentation. With hair-pulling symptoms: If hair pulling predominates in the clinical presentation. With skin-picking symptoms: It skin picking predominates in the clinical presenta- tion. Coding note: Include the name of the other medical condition in the name of the mental disorder (e.g., 294.8 [F06.8] obsessive-compulsive and related disorder due to cerebral infarction). The other medical condition should be coded and listed separately immediately before the obsessive-compulsive and related disorder due to the medical condition (e.g., 438.89 [l69.398] cerebral infarction; 294.8 [F06.8] obsessive-compulsive and related dis- order due to cerebral infarction). The essential feature of obsessive-compulsive and related disorder due to another medical condition is clinically significant obsessive-compulsive and related symptoms that are judged to be best explained as the direct pathophysiological consequence of another med— ical condition. Symptoms can include prominent obsessions, compulsions, preoccu- pations with appearance, hoarding, hair pulling, skin picking, or other body-focused repetitive behaviors (Criterion A). The judgment that the symptoms are best explained by the associated medical condition must be based on evidence from the history, physical ex- amination, or laboratory findings (Criterion B). Additionally, it must be judged that the symptoms are not better explained by another mental disorder (Criterion C). The diagno- sis is not made if the obsessive-compulsive and related symptoms occur only during the course of a delirium (Criterion D). The obsessive—compulsive and related symptoms must cause clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning (Criterion E). In determining whether the obsessive-compulsive and related symptoms are attribut— able to another medical condition, a relevant medical condition must be present. Further- more, it must be established that obsessive-compulsive and related symptoms can be etiologically related to the medical condition through a pathophysiological mechanism and that this best explains the symptoms in the individual. Although there are no infallible guidelines for determining whether the relationship between the obsessive-compulsive and related symptoms and the medical condition is etiological, considerations that may provide some guidance in making this diagnosis include the presence of a clear temporal association between the onset, exacerbation, or remission of the medical condition and the obsessive-compulsive and related symptoms; the presence of features that are atypical of a primary obsessive—compulsive and related disorder (e.g., atypical age at onset or course); and evidence in the literature that a known physiological mechanism (e.g., striatal dam- age) causes obsessive-compulsive and related symptoms. In addition, the disturbance cannot be better explained by a primary obsessive-compulsive and related disorder, a sub- stance/medication-induced obsessive-compulsive and related disorder, or another men- tal disorder. There is some controversy about whether obsessive-compulsive and related disorders can be attributed to Group A streptococcal infection. Sydenham’s chorea is the neurolog- ical manifestation of rheumatic fever, which is in turn due to Group A streptococcal in- fection. Sydenham’s chorea is characterized by a combination of motor and nonmotor features. Nonmotor features include obsessions, compulsions, attention deficit, and emo- tional lability. Although individuals with Sydenham’s chorea may present with non- neuropsychiatric features of acute rheumatic fever, such as carditis and arthritis, they may present with obsessive-compulsive disorder—like symptoms; such individuals should be diagnosed with obsessive-compulsive and related disorder due to another medical condition. Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infec- tions (PANDAS) has been identified as another post-infectious autoimmune disorder characterized by the sudden onset of obsessions, compulsions, and/ or tics accompanied by a variety of acute neuropsychiatric symptoms in the absence of chorea, carditis, or ar- thritis, after Group A streptococcal infection. Although there is a body of evidence that supports the existence of PANDAS, it remains a controversial diagnosis. Given this ongo- ing controversy, the description of PANDAS has been modified to eliminate etiological factors and to designate an expanded clinical entity: pediatric acute-onset neuropsychiat- ric syndrome (PANS) or idiopathic childhood acute neuropsychiatric symptoms (CANS), which deserves further study. A number of other medical disorders are known to include obsessive-compulsive and re- lated symptoms as a manifestation. Examples include disorders leading to striatal dam- age, such as cerebral infarction. The development and course of obsessive-compulsive and related disorder due to another medical condition generally follows the course of the underlying illness. Laboratory assessments and/ or medical examinations are necessary to confirm the diag- nosis of another medical condition. Delirium. A separate diagnosis of obsessive-compulsive and related disorder due to an- other medical condition is not given if the disturbance occurs exclusively during the course of a delirium. However, a diagnosis of obsessive—compulsive and related disorder due to another medical condition may be given in addition to a diagnosis of major neuro- cognitive disorder (dementia) if the etiology of the obsessive-compulsive symptoms is judged to be a physiological consequence of the pathological process causing the dementia and if obsessive-compulsive symptoms are a prominent part of the clinical presentation. Mixed presentation of symptoms (e.g., mood and obsessive-compulsive and related disorder symptoms). If the presentation includes a mix of different types of symptoms, the specific mental disorder due to another medical condition depends on which symp- toms predominate in the clinical picture. Substance/medication-induced obsessive-compulsive and related disorders. If there is evidence of recent or prolonged substance use (including medications with psychoac— tive effects), withdrawal from a substance, or exposure to a toxin, a substance/ medication— induced obsessive-compulsive and related disorder should be considered. When a sub- stance/medication-induced obsessive—compulsive and related disorder is being diag- nosed in relation to drugs of abuse, it may be useful to obtain a urine or blood drug screen or other appropriate laboratory evaluation. Symptoms that occur during or shortly after (i.e., within 4 weeks of) substance intoxication or withdrawal or after medication use may be especially indicative of a substance/medication—induced obsessive-compulsive and re— lated disorder, depending on the type, duration, or amount of the substance used. Obsessive-compulsive and related disorders (primary). Obsessive-compulsive and re- lated disorder due to another medical condition should be distinguished from a primary obsessive-compulsive and related disorder. In primary mental disorders, no specific and direct causative physiological mechanisms associated with a medical condition can be demonstrated. Late age at onset or atypical symptoms suggest the need for a thorough as- sessment to rule out the diagnosis of obsessive-compulsive and related disorder due to an- other medical condition. Illness anxiety disorder. Illness anxiety disorder is characterized by a preoccupation with having or acquiring a serious illness. In the case of illness anxiety disorder, individuals may or may not have diagnosed medical conditions. Associated feature of another mental disorder. Obsessive-compulsive and related symp- toms may be an associated feature of another mental disorder (e.g., schizophrenia, an- orexia nervosa). compulsive and related disorder. These diagnoses are given if it is unclear whether the obsessive-compulsive and related symptoms are primary, substance-induced, or due to another medical condition. 300.3 (F42)This category applies to presentations in which symptoms characteristic of an obsessive- social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the obsessive-compulsive and related disorders diagnostic class. The other specified obsessive-compulsive and related disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific obsessive-compulsive and re- lated disorder. This is done by recording “other specified obsessive-compulsive and relat- ed disorder” followed by the specific reason (e.g.. “body-tocused repetitive behavior disorder”). Examples of presentations that can be specified using the "other specified" designation include the following: 1. Body dysmorphic—like disorder with actual flaws: This is similar to body dysmor- phic disorder except that the defects or flaws in physical appearance are clearly ob- servable by others (i.e., they are more noticeable than “slight"). In such cases, the preoccupation with these flaws is clearly excessive and causes significant impairment or distress. 2. Body dysmorphic—like disorder without repetitive behaviors: Presentations that meet body dysmorphic disorder except that the individual has not performed repetitive behaviors or mental acts in response to the appearance concerns. 3. Body-focused repetitive behavior disorder: This is characterized by recurrent body- tocused repetitive behaviors (e.g., nail biting, lip biting, cheek chewing) and repeated attempts to decrease or stop the behaviors. These symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning and are not better explained by trichotillomania (hair-pulling disorder), excoriation (skin- picking) disorder. stereotypic movement disorder, or nonsuicidal self-injury. 4. Obsessional iealousy: This is characterized by nondelusional preoccupation with a partner’s perceived infidelity. The preoccupations may lead to repetitive behaviors or mental acts in response to the infidelity concerns; they cause clinically significant dis- tress or impairment in social, occupational, or other important areas of functioning; and they are not better explained by another mental disorder such as delusional disorder, jealous type, or paranoid personality disorder. 5. Shubo-kyofu: A variant of taijin kyofusho (see ”Glossary of Cultural Concepts of Dis- tress" in the Appendix) that is similar to body dysmorphic disorder and is characterized by excessive fear of having a bodily deformity. 6. Koro: Related to dhat syndrome (see “Glossary of Cultural Concepts of Distress” in the Appendix), an episode of sudden and intense anxiety that the penis (or the vulva and nipples in females) will recede into the body, possibly leading to death. 7. Jikoshu-kyofu: A variant of taijin kyofusho (see “Glossary of Cultural Concepts of Dis- tress” in the Appendix) characterized by fear of having an offensive body odor (also termed olfactory reference syndrome). 300.3 (F42)This category applies to presentations in which symptoms characteristic of an obsessive- social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the obsessive-compulsive and related disorders diagnostic class. The unspecified obsessive-compulsive and related disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific obsessive-compulsive and related disorder, and includes presen- tations in which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). a traumatic or stressful event is listed explicitly as a diagnostic criterion. These include reactive attachment disorder, disinhibited social engagement disorder, posttraumatic stress disor— der (PTSD), acute stress disorder, and adjustment disorders. Placement of this chapter reflects the close relationship between these diagnoses and disorders in the surrounding chapters on anxiety disorders, obsessive-compulsive and related disorders, and dissociative disorders. Psychological distress following exposure to a traumatic or stressful event is quite vari- able. In some cases, symptoms can be well understood within an anxiety- or fear-based context. It is clear, however, that many individuals who have been exposed to a traumatic or stressful event exhibit a phenotype in which, rather than anxiety- or fear-based symp- toms, the most prominent clinical characteristics are anhedonic and dysphoric symptoms, externalizing angry and aggressive symptoms, or dissociative symptoms. Because of these variable expressions of clinical distress following exposure to catastrophic or aversive events, the aforementioned disorders have been grouped under a separate category: trauma- and stressor—related disorders. Furthermore, it is not uncommon for the clinical pic- ture to include some combination of the above symptoms (with or without anxiety- or fear-based symptoms). Such a heterogeneous picture has long been recognized in adjust- ment disorders, as well. Social neglect—that is, the absence of adequate caregiving during childhood—is a diagnostic requirement of both reactive attachment disorder and disin- hibited social engagement disorder. Although the two disorders share a common etiology, the former is expressed as an internalizing disorder with depressive symptoms and with- drawn behavior, while the latter is marked by disinhibition and externalizing behavior. Diagnostic Criteria 313.89 (F94.1)A. A consistent pattern of inhibited, emotionally withdrawn behavior toward adult caregiv- ers, manifested by both of the following: 1. The child rarely or minimally seeks comfort when distressed. 2. The child rarely or minimally responds to comfort when distressed. B. A persistent social and emotional disturbance characterized by at least two of the following: 1. Minimal social and emotional responsiveness to others. 2. Limited positive affect.3. Episodes of unexplained irritability, sadness, or fearfulness that are evident even during nonthreatening interactions with adult caregivers. C. The child has experienced a pattern of extremes of insufficient care as evidenced by at least one of the following: 1. Social neglect or deprivation in the form of persistent lack of having basic emotional needs for comfort, stimulation, and affection met by caregiving adults. 2. Repeated changes of primary caregivers that limit opportunities to form stable at- tachments (e.g., frequent changes in foster care). 3. Rearing in unusual settings that severely limit opportunities to form selective at- tachments (e.g., institutions with high chiId-to-caregiver ratios). D. The care in Criterion C is presumed to be responsible for the disturbed behavior in Cri- terion A (e.g., the disturbances in Criterion A began following the lack of adequate care in Criterion C). E. The criteria are not met for autism spectrum disorder. F. The disturbance is evident before age 5 years.G. The child has a developmental age of at least 9 months. Specify it:Persistent: The disorder has been present for more than 12 months. Specify current severity:Reactive attachment disorder is specified as severe when a child exhibits all symp- toms of the disorder, with each symptom manifesting at relatively high levels. Reactive attachment disorder of infancy or early childhood is characterized by a pattern of markedly disturbed and developmentally inappropriate attachment behaviors, in which a child rarely or minimally turns preferentially to an attachment figure for comfort, support, protection, and nurturance. The essential feature is absent or grossly underdeveloped at- tachment between the child and putative caregiving adults. Children with reactive attach- ment disorder are believed to have the capacity to form selective attachments. However, because of limited opportunities during early development, they fail to show the behavioral manifestations of selective attachments. That is, when distressed, they show no consistent effort to obtain comfort, support, nurturance, or protection from caregivers. Furthermore, when distressed, children with this disorder do not respond more than minimally to com- forting efforts of caregivers. Thus, the disorder is associated with the absence of expected comfort seeking and response to comforting behaviors. As such, children with reactive attachment disorder show diminished or absent expression of positive emotions during routine interactions with caregivers. In addition, their emotion regulation capacity is com- promised, and they display episodes of negative emotions of fear, sadness, or irritability that are not readily explained. A diagnosis of reactive attachment disorder should not be made in children who are developmentally unable to form selective attachments. For this reason, the child must have a developmental age of at least 9 months. Because of the shared etiological association with social neglect, reactive attachment dis- order often co-occurs with developmental delays, especially in delays in cognition and language. Other associated features include stereotypies and other signs of severe neglect (e.g., malnutrition or signs of poor care). The prevalence of reactive attachment disorder is unknown, but the disorder is seen rela- tively rarely in clinical settings. The disorder has been found in young children exposed to severe neglect before being placed in foster care or raised in institutions. However, even in populations of severely neglected children, the disorder is uncommon, occurring in less than 10% of such children. Conditions of social neglect are often present in the first months of life in children diag- nosed with reactive attachment disorder, even before the disorder is diagnosed. The clin- ical features of the disorder manifest in a similar fashion between the ages of 9 months and 5 years. That is, signs of absent-to-minimal attachment behaviors and associated emotion- ally aberrant behaviors are evident in children throughout this age range, although differ- ing cognitive and motor abilities may affect how these behaviors are expressed. Without remediation and recovery through normative caregiving environments, it appears that signs of the disorder may persist, at least for several years. It is unclear whether reactive attachment disorder occurs in older children and, if so, how it differs from its presentation in young children. Because of this, the diagnosis should be made with caution in children older than 5 years. Environmental. Serious social neglect is a diagnostic requirement for reactive attach- ment disorder and is also the only known risk factor for the disorder. However, the ma- jority of severely neglected children do not develop the disorder. Prognosis appears to depend on the quality of the caregiving environment following serious neglect. cultures around the world. However, caution should be exercised in making the diagnosis of reactive attachment disorder in cultures in which attachment has not been studied. Reactive attachment disorder significantly impairs young children’s abilities to relate in- terpersonally to adults or peers and is associated with functional impairment across many domains of early childhood. Autism spectrum disorder. Aberrant social behaviors manifest in young children with reactive attachment disorder, but they also are key features of autism spectrum disorder. Specifically, young children with either condition can manifest dampened expression of positive emotions, cognitive and language delays, and impairments in social reciprocity. As a result, reactive attachment disorder must be differentiated from autism spectrum dis- order. These two disorders can be distinguished based on differential histories of neglect and on the presence of restricted interests or ritualized behaviors, specific deficit in social communication, and selective attachment behaviors. Children with reactive attachment disorder have experienced a history of severe social neglect, although it is not always pos— sible to obtain detailed histories about the precise nature of their experiences, especially in initial evaluations. Children with autistic spectrum disorder will only rarely have a history of social neglect. The restricted interests and repetitive behaviors characteristic of autism spectrum disorder are not a feature of reactive attachment disorder. These clinical features manifest as excessive adherence to rituals and routines; restricted, fixated interests; and unusual sensory reactions. However, it is important to note that children with either con- dition can exhibit stereotypic behaviors such as rocking or flapping. Children with either disorder also may exhibit a range of intellectual functioning, but only children with autis- tic spectrum disorder exhibit selective impairments in social communicative behaviors, such as intentional communication (i.e., impairment in communication that is deliberate, goal-directed, and aimed at influencing the behavior of the recipient). Children with reac— tive attachment disorder show social communicative functioning comparable to their overall level of intellectual functioning. Finally, children with autistic spectrum disorder regularly show attachment behavior typical for their developmental level. In contrast, children with reactive attachment disorder do so only rarely or inconsistently, if at all. Intellectual disability (intellectual developmental disorder). Developmental delays of- ten accompany reactive attachment disorder, but they should not be confused with the disorder. Children with intellectual disability should exhibit social and emotional skills comparable to their cognitive skills and do not demonstrate the profound reduction in positive affect and emotion regulation difficulties evident in children with reactive attach- ment disorder. In addition, developmentally delayed children who have reached a cogni- tive age of 7—9 months should demonstrate selective attachments regardless of their chronological age. In contrast, children with reactive attachment disorder show lack of preferred attachment despite having attained a developmental age of at least 9 months. Depressive disorders. Depression in young children is also associated with reductions in positive affect. There is limited evidence, however, to suggest that children with depres— sive disorders have impairments in attachment. That is, young children who have been di- agnosed with depressive disorders still should seek and respond to comforting efforts by caregivers. Conditions associated with neglect, including cognitive delays, language delays, and ste- reotypies, often co-occur with reactive attachment disorder. Medical conditions, such as severe malnutrition, may accompany signs of the disorder. Depressive symptoms also may co-occur with reactive attachment disorder. Diagnostic Criteria 313.89 (F94.2)A. A pattern of behavior in which a child actively approaches and interacts with unfamiliar adults and exhibits at least two of the following: 1. Reduced or absent reticence in approaching and interacting with untamiliar adults. 2. Overly familiar verbal or physical behavior (that is not consistent with culturally sanctioned and with age-appropriate social boundaries). 3. Diminished or absent checking back with adult caregiver after venturing away, even in unfamiliar settings. 4. Willingness to go off with an unfamiliar adult with minimal or no hesitation. B. The behaviors in Criterion A are not limited to impulsivity (as in attention-deficit/hyper- activity disorder) but include socially disinhiblted behavior. C. The child has experienced a pattern of extremes of insufficient care as evidenced by at least one of the following: 1. Social neglect or deprivation in the form of persistent lack of having basic emotional needs for comfort, stimulation, and affection met by caregiving adults. 2. Repeated changes of primary caregivers that limit opportunities to form stable at- tachments (e.g., frequent changes in foster care). 3. Hearing in unusual settings that severely limit opportunities to form selective at- tachments (e.g., institutions with high chiId-to-caregiver ratios). D. The care in Criterion C is presumed to be responsible forthe disturbed behavior in Cri- terion A (e.g.} the disturbances in Criterion A began following the pathogenic care in Criterion C).E. The child has a developmental age of at least 9 months. Specify if:Persistent: The disorder has been present for more than 12 months. Specify current severity:Disinhibited social engagement disorder is specified as severe when the child exhibits all symptoms of the disorder. with each symptom manifesting at relatively high levels. The essential feature of disinhibited social engagement disorder is a pattern of behavior that involves culturally inappropriate, overly familiar behavior with relative strangers (Criterion A). This overly familiar behavior violates the social boundaries of the culture. A diagnosis of disinhibited social engagement disorder should not be made before children are developmentally able to form selective attachments. For this reason, the child must have a developmental age of at least 9 months. Because of the shared etiological association with social neglect, disinhibited social en- gagement disorder may co-occur with developmental delays, especially cognitive and lan- guage delays, stereotypies, and other signs of severe neglect, such as malnutrition or poor care. However, signs of the disorder often persist even after these other signs of neglect are no longer present. Therefore, it is not uncommon for children with the disorder to present with no current signs of neglect. Moreover, the condition can present in children who show no signs of disordered attachment. Thus, disinhibited social engagement disorder may be seen in children with a history of neglect who lack attachments or whose attach- ments to their caregivers range from disturbed to secure. The prevalence of disinhibited social attachment disorder is unknown. Nevertheless, the disorder appears to be rare, occurring in a minority of children, even those who have been severely neglected and subsequently placed in foster care or raised in institutions. In such high-risk populations, the condition occurs in only about 20% of children. The condition is seen rarely in other clinical settings. Conditions of social neglect are often present in the first months of life in children diag- nosed with disinhibited social engagement disorder, even before the disorder is diag- nosed. However, there is no evidence that neglect beginning after age 2 years is associated with manifestations of the disorder. If neglect occurs early and signs of the disorder appear, clinical features of the disorder are moderately stable over time, particularly if conditions of neglect persist. Indiscriminate social behavior and lack of reticence with un- familiar adults in toddlerhood are accompanied by attention-seeking behaviors in pre- schoolers. When the disorder persists into middle childhood, clinical features manifest as verbal and physical overfamiliarity as well as inauthentic expression of emotions. These signs appear particularly apparent when the child interacts with adults. Peer relationships are most affected in adolescence, with both indiscriminate behavior and conflicts appar- ent. The disorder has not been described in adults. Disinhibited social engagement disorder has been described from the second year of life through adolescence. There are some differences in manifestations of the disorder from early childhood through adolescence. At the youngest ages, across many cultures, children show reticence when interacting with strangers. Young children with the disorder fail to show reticence to approach, engage with, and even accompany adults. In preschool children, verbal and social intrusiveness appear most prominent, often accompanied by attention-seeking behavior. Verbal and physical overfamiliarity continue through middle childhood, accompanied by inauthentic expressions of emotion. In adolescence, indis- criminate behavior extends to peers. Relative to healthy adolescents, adolescents with the disorder have more "superficial” peer relationships and more peer conflicts. Adult man- ifestations of the disorder are unknown. Environmental. Serious social neglect is a diagnostic requirement for disinhibited social engagement disorder and is also the only known risk factor for the disorder. However, the majority of severely neglected children do not develop the disorder. Neurobiological vul- nerability may differentiate neglected children who do and do not develop the disorder. However, no clear link with any specific neurobiological factors has been established. The 2 years. Prognosis is only modestly associated with quality of the caregiving environment following serious neglect. In many cases, the disorder persists, even in children whose caregiving environment becomes markedly improved. Course modifiers. Caregiving quality seems to moderate the course of disinhibited so- cial engagement disorder. Nevertheless, even after placement in normative caregiving environments, some children show persistent signs of the disorder, at least through ado- lescence. relate interpersonally to adults and peers.Attention-deficit/hyperactivity disorder. Because of social impulsivity that sometimes accompanies attention-deficit/hyperactivity disorder (ADHD), it is necessary to differ- entiate the two disorders. Children with disinhibited social engagement disorder may be distinguished from those with ADHD because the former do not show difficulties with at- tention or hyperactivity. Limited research has examined the issue of disorders comorbid with disinhibited social engagement disorder. Conditions associated with neglect, including cognitive delays, language delays, and stereotypies, may co-occur with disinhibited social engagement dis- order. In addition, children may be diagnosed with ADHD and disinhibited social engage- ment disorder concurrently. Diagnostic Criteria 309.81 (F43.10)Note: The following criteria apply to adults, adolescents, and children older than 6 years. For children 6 years and younger, see corresponding criteria below. A. Exposure to actual or threatened death, serious injury, or sexual violence in one (or more) of the following ways: 1. Directly experiencing the traumatic event(s).Witnessing, in person, the event(s) as it occurred to others. Learning that the traumatic event(s) occurred to a close family member or close friend. In cases of actual or threatened death of a family member or friend, the event(s) must have been violent or accidental. Experiencing repeated or extreme exposure to aversive details of the traumatic event(s) (e.g., first responders collecting human remains; police officers repeatedly exposed to details of child abuse). Note: Criterion A4 does not apply to exposure through electronic media, television, movies, or pictures, unless this exposure is work related. B. Presence of one (or more) of the following intrusion symptoms associated with the traumatic event(s), beginning after the traumatic event(s) occurred: 1. Recurrent, involuntary, and intrusive distressing memories of the traumatic event(s). Note: In children older than 6 years, repetitive play may occur in which themes or aspects of the traumatic event(s) are expressed. . Recurrent distressing dreams in which the content and/or affect of the dream are related to the traumatic event(s). Note: In children, there may be frightening dreams without recognizable content. Dissociative reactions (e.g., flashbacks) in which the individual feels or acts as if the traumatic event(s) were recurring. (Such reactions may occur on a continuum, with the most extreme expression being a complete loss of awareness of present surroundings.) Note: In children, trauma-specitic reenactment may occur in play.Intense or prolonged psychological distress at exposure to internal or external cues that symbolize or resemble an aspect of the traumatic event(s). Marked physiological reactions to internal or external cues that symbolize or re- semble an aspect of the traumatic event(s). C. Persistent avoidance of stimuli associated with the traumatic event(s), beginning after the traumatic event(s) occurred, as evidenced by one or both of the following: 1. Avoidance of or efforts to avoid distressing memories, thoughts, or feelings about or closely associated with the traumatic event(s). Avoidance of or efforts to avoid external reminders (people, places, conversations, activities, objects, situations) that arouse distressing memories, thoughts, or feel- ings about or closely associated with the traumatic event(s). D. Negative alterations in cognitions and mood associated with the traumatic event(s), beginning or worsening after the traumatic event(s) occurred, as evidenced by two (or more) of the following: 1. Inability to remember an important aspect of the traumatic event(s) (typically due to dis- sociative amnesia and not to other factors such as head injury. alcohol, or drugs). 2. Persistent and exaggerated negative beliefs or expectations about oneself, others, or the world (e.g., “I am bad,” "No one can be trusted," “The world is completely dangerous," “My whole nervous system is permanently ruined"). Persistent, distorted cognitions about the cause or consequences of the traumatic event(s) that lead the individual to blame himself/herself or others. Persistent negative emotional state (e.g., fear, horror, anger, guilt, or shame). Markedly diminished interest or participation in significant activities.Feelings of detachment or estrangement from others.Persistent inability to experience positive emotions (e.g., inability to experience happiness, satisfaction, or loving feelings). . Marked alterations in arousal and reactivity associated with the traumatic event(s). be- ginning or worsening after the traumatic event(s) occurred, as evidenced by two (or more) of the following: 1. Irritable behavior and angry outbursts (with little or no provocation) typically ex- pressed as verbal or physical aggression toward people or objects. Reckless or seIf-destructive behavior.Exaggerated startle response.Problems with concentration.Sleep disturbance (e.g., difficulty falling or staying asleep or restless sleep). Duration of the disturbance (Criteria B, C, D, and E) is more than 1 month. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. The disturbance is not attributable to the physiological effects of a substance (e.g., medication, alcohol) or another medical condition. Specify whether:With dissociative symptoms: The individual's symptoms meet the criteria for post- traumatic stress disorder, and in addition. in response to the stressor, the individual ex- periences persistent or recurrent symptoms of either of the following: 1. Depersonalization: Persistent or recurrent experiences of feeling detached from, and as if one were an outside observer of, one‘s mental processes or body (e.g., feeling as though one were in a dream; feeling a sense of unreality of self or body or of time moving slowly). 2. Derealization: Persistent or recurrent experiences of unreality of surroundings (e.g., the world around the individual is experienced as unreal, dreamlike. distant, or distorted). Note: To use this subtype. the dissociative symptoms must not be attributable to the physiological effects of a substance (e.g., blackouts, behavior during alcohol intoxica- tion) or another medical condition (e.g., complex partial seizures). Specify it:With delayed expression: If the full diagnostic criteria are not met until at least 6 months after the event (although the onset and expression of some symptoms may be immediate). In children 6 years and younger, exposure to actual or threatened death, serious injury, or sexual violence in one (or more) of the following ways: 1. Directly experiencing the traumatic event(s). 2. Witnessing, in person. the event(s) as it occurred to others, especially primary care- givers. Note: Witnessing does not include events that are witnessed only in electronic me- dia, television, movies, or pictures. 3. Learning that the traumatic event(s) occurred to a parent or caregiving figure. B. Presence of one (or more) of the following intrusion symptoms associated with the traumatic event(s), beginning after the traumatic event(s) occurred: 1. Recurrent, involuntary, and intrusive distressing memories of the traumatic event(s). Note: Spontaneous and intrusive memories may not necessarily appear distress- ing and may be expressed as play reenactment. 2. Recurrent distressing dreams in which the content and/or affect of the dream are related to the traumatic event(s). Note: It may not be possible to ascertain that the frightening content is related to the traumatic event. 3. Dissociative reactions (e.g., flashbacks) in which the child feels or acts as if the traumatic event(s) were recurring. (Such reactions may occur on a continuum, with the most extreme expression being a complete loss of awareness of present sur- roundings.) Such trauma-specitic reenactment may occur in play. 4. Intense or prolonged psychological distress at exposure to internal or external cues that symbolize or resemble an aspect of the traumatic event(s). 5. Marked physiological reactions to reminders of the traumatic event(s). C. One (or more) of the following symptoms, representing either persistent avoidance of stimuli associated with the traumatic event(s) or negative alterations in cognitions and mood associated with the traumatic event(s), must be present, beginning after the event(s) or worsening after the event(s): Persistent Avoidance of Stimuli 1. Avoidance of or efforts to avoid activities, places, or physical reminders that arouse recollections of the traumatic event(s). 2. Avoidance of or efforts to avoid people, conversations, or interpersonal situations that arouse recollections of the traumatic event(s). 3. Substantially increased frequency of negative emotional states (e.g., fear, guilt, sadness, shame, contusion). 4. Markedly diminished interest or participation in significant activities, including con- striction of play. 5. Socially withdrawn behavior.6. Persistent reduction in expression of positive emotions.D. Alterations in arousal and reactivity associated with the traumatic event(s), beginning or worsening after the traumatic event(s) occurred. as evidenced by two (or more) of the following: 1. Irritable behavior and angry outbursts (with little or no provocation) typically ex- pressed as verbal or physical aggression toward people or objects (including ex- treme temper tantrums). Exaggerated startle response.Problems with concentration.5. Sleep disturbance (e.g., difficulty falling or staying asleep or restless sleep). E. The duration of the disturbance is more than 1 month. F. The disturbance causes clinically significant distress or impairment in relationships with parents, siblings, peers, or other caregivers or with school behavior. G. The disturbance is not attributable to the physiological effects of a substance (e.g., medication or alcohol) or another medical condition. Specify whether:With dissociative symptoms: The individual’s symptoms meet the criteria for post- traumatic stress disorder, and the individual experiences persistent or recurrent symp- toms of either of the following: 1. Depersonalization: Persistent or recurrent experiences of feeling detached from, and as if one were an outside observer of, one's mental processes or body (e.g., feeling as though one were in a dream; feeling a sense of unreality of self or body or of time moving slowly). 2. Derealization: Persistent or recurrent experiences of unreality of surroundings (e.g., the world around the individual is experienced as unreal, dreamlike, distant, or distorted). Note: To use this subtype, the dissociative symptoms must not be attributable to the physiological effects of a substance (e.g., blackouts) or another medical condition (e.g., complex partial seizures). Specify it:With delayed expression: It the full diagnostic criteria are not met until at least 6 months after the event (although the onset and expression of some symptoms may be immediate). The essential feature of posttraumatic stress disorder (PTSD) is the development of char- acteristic symptoms following exposure to one or more traumatic events. Emotional re- actions to the traumatic event (e.g., fear, helplessness, horror) are no longer a part of Criterion A. The clinical presentation of PTSD varies. In some individuals, fear-based re- experiencing, emotional, and behavioral symptoms may predominate. In others, anhe- donic or dysphoric mood states and negative cognitions may be most distressing. In some other individuals, arousal and reactive-externalizing symptoms are prominent, while in others, dissociative symptoms predominate. Finally, some individuals exhibit combina- tions of these symptom patterns. The directly experienced traumatic events in Criterion A include, but are not limited to, exposure to war as a combatant or civilian, threatened or actual physical assault (e.g., physical attack, robbery, mugging, childhood physical abuse), threatened or actual sexual violence (e.g., forced sexual penetration, alcohol/drug-facilitated sexual penetration, abu- sive sexual contact, noncontact sexual abuse, sexual trafficking), being kidnapped, being taken hostage, terrorist attack, torture, incarceration as a prisoner of war, natural or hu- man-made disasters, and severe motor vehicle accidents. For children, sexually violent violence or injury. A life-threatening illness or debilitating medical condition is not neces- sarily considered a traumatic event. Medical incidents that qualify as traumatic events in- volve sudden, catastrophic events (e.g., waking during surgery, anaphylactic shock). Witnessed events include, but are not limited to, observing threatened or serious injury, unnatural death, physical or sexual abuse of another person due to violent assault, domes- tic violence, accident, war or disaster, or a medical catastrophe in one’s child (e.g., a life- threatening hemorrhage). Indirect exposure through learning about an event is limited to experiences affecting close relatives or friends and experiences that are Violent or acciden- tal (e.g., death due to natural causes does not qualify). Such events include violent per- sonal assault, suicide, serious accident, and serious injury. The disorder may be especially severe or long-Iasting when the stressor is interpersonal and intentional (e.g., torture, sex- ual violence). The traumatic event can be reexperienced in various ways. Commonly, the individual has recurrent, involuntary, and intrusive recollections of the event (Criterion B1). Intrusive recollections in PTSD are distinguished from depressive rumination in that they apply only to involuntary and intrusive distressing memories. The emphasis is on recurrent memories of the event that usually include sensory, emotional, or physiological behavioral components. A common reexperiencing symptom is distressing dreams that replay the event itself or that are representative or thematically related to the major threats involved in the traumatic event (Criterion B2). The individual may experience dissociative states that last from a few seconds to several hours or even days, during which components of the event are relived and the individual behaves as if the event were occurring at that mo- ment (Criterion B3). Such events occur on a continuum from brief visual or other sensory intrusions about part of the traumatic event without loss of reality orientation, to complete loss of awareness of present surroundings. These episodes, often referred to as ”flash- backs,” are typically brief but can be associated with prolonged distress and heightened arousal. For young children, reenactment of events related to trauma may appear in play or in dissociative states. Intense psychological distress (Criterion B4) or physiological re- activity (Criterion B5) often occurs when the individual is exposed to triggering events that resemble or symbolize an aspect of the traumatic event (e.g., windy days after a hurricane; seeing someone who resembles one’s perpetrator). The triggering cue could be a physical sensation (e.g., dizziness for survivors of head trauma; rapid heartbeat for a previously traumatized child), particularly for individuals with highly somatic presentations. Stimuli associated with the trauma are persistently (e.g., always or almost always) avoided. The individual commonly makes deliberate efforts to avoid thoughts, memories, feelings, or talking about the traumatic event (e.g., utilizing distraction techniques to avoid internal reminders) (Criterion C1) and to avoid activities, objects, situations, or people who arouse recollections of it (Criterion C2). Negative alterations in cognitions or mood associated with the event begin or worsen after exposure to the event. These negative alterations can take various forms, including an inability to remember an important aspect of the traumatic event; such amnesia is typically due to dissociative amnesia and is not due to head injury, alcohol, or drugs (Criterion D1). Another form is persistent (i.e., always or almost always) and exaggerated negative ex- pectations regarding important aspects of life applied to oneself, others, or the future (e.g., ifest as a negative change in perceived identity since the trauma (e.g., ”I can’t trust anyone ever again”; Criterion D2). Individuals with PTSD may have persistent erroneous cogni- tions about the causes of the traumatic event that lead them to blame themselves or others (e.g., ”It’s all my fault that my uncle abused me”) (Criterion D3). A persistent negative mood state (e.g., fear, horror, anger, guilt, shame) either began or worsened after exposure to the event (Criterion D4). The individual may experience markedly diminished interest or participation in previously enjoyed activities (Criterion D5), feeling detached or es- tranged from other people (Criterion D6), or a persistent inability to feel positive emotions (especially happiness, joy, satisfaction, or emotions associated with intimacy, tenderness, and sexuality) (Criterion D7). Individuals with PTSD may be quick tempered and may even engage in aggressive verbal and / or physical behavior with little or no provocation (e.g., yelling at people, get- ting into fights, destroying objects) (Criterion E1). They may also engage in reckless or self- destructive behavior such as dangerous driving, excessive alcohol or drug use, or self- injurious or suicidal behavior (Criterion E2). PTSD is often characterized by a heightened sensitivity to potential threats, including those that are related to the traumatic experience (e.g., following a motor vehicle accident, being especially sensitive to the threat potentially caused by cars or trucks) and those not related to the traumatic event (e.g., being fearful of suffering a heart attack) (Criterion E3). Individuals with PTSD may be very reactive to un- expected stimuli, displaying a heightened startle response, or jumpiness, to loud noises or unexpected movements (e.g., jumping markedly in response to a telephone ringing) (Cri- terion E4). Concentration difficulties, including difficulty remembering daily events (e.g., forgetting one’s telephone number) or attending to focused tasks (e.g., following a conver- sation for a sustained period of time), are commonly reported (Criterion E5). Problems with sleep onset and maintenance are common and may be associated with nightmares and safety concerns or with generalized elevated arousal that interferes with adequate sleep (Criterion E6). Some individuals also experience persistent dissociative symptoms of de- tachment from their bodies (depersonalization) or the world around them (derealization); this is reflected in the ”with dissociative symptoms” specifier. Developmental regression, such as loss of language in young children, may occur. Audi— tory pseudo-hallucinations, such as having the sensory experience of hearing one’s thoughts spoken in one or more different voices, as well as paranoid ideation, can be pres- ent. Following prolonged, repeated, and severe traumatic events (e.g., childhood abuse, torture), the individual may additionally experience difficulties in regulating emotions or maintaining stable interpersonal relationships, or dissociative symptoms. When the trau- matic event produces violent death, symptoms of both problematic bereavement and PTSD may be present. In the United States, projected lifetime risk for PTSD using DSM-IV criteria at age 75 years is 8.7%. Twelve—month prevalence among U.S. adults is about 3.5%. Lower estimates are seen in Europe and most Asian, African, and Latin American countries, clustering around 0.5"o—1.0%. Although different groups have different levels of exposure to traumatic events, the conditional probability of developing PTSD following a similar level of expo- sure may also vary across cultural groups. Rates of PTSD are higher among veterans and others whose vocation increases the risk of traumatic exposure (e.g., police, firefighters, emergency medical personnel). Highest rates (ranging from one-third to more than one— half of those exposed) are found among survivors of rape, military combat and captivity, and ethnically or politically motivated internment and genocide. The prevalence of PTSD may vary across development; children and adolescents, including preschool children, generally have displayed lower prevalence following exposure to serious traumatic events; however, this may be because previous criteria were insufficiently developmen- tally informed. The prevalence of full-threshold PTSD also appears to be lower among older adults compared with the general population; there is evidence that subthreshold presentations are more common than full PTSD in later life and that these symptoms are associated with substantial clinical impairment. Compared with US. non-Latino whites, higher rates of PTSD have been reported among US. Latinos, African Americans, and American Indians, and lower rates have been reported among Asian Americans, after ad- justment for traumatic exposure and demographic variables. PTSD can occur at any age, beginning after the first year of life. Symptoms usually begin within the first 3 months after the trauma, although there may be a delay of months, or even years, before criteria for the diagnosis are met. There is abundant evidence for what DSM-IV called ”delayed onset” but is now called "delayed expression," with the recogni- tion that some symptoms typically appear immediately and that the delay is in meeting full criteria. Frequently, an individual’s reaction to a trauma initially meets criteria for acute stress disorder in the immediate aftermath of the trauma. The symptoms of PTSD and the rela- tive predominance of different symptoms may vary over time. Duration of the symptoms also varies, with complete recovery within 3 months occurring in approximately one—half of adults, while some individuals remain symptomatic for longer than 12 months and sometimes for more than 50 years. Symptom recurrence and intensification may occur in response to reminders of the original trauma, ongoing life stressors, or newly experienced traumatic events. For older individuals, declining health, worsening cognitive function- ing, and social isolation may exacerbate PTSD symptoms. The clinical expression of reexperiencing can vary across development. Young children may report new onset of frightening dreams without content specific to the traumatic event. Before age 6 years (see criteria for preschool subtype), young children are more likely to ex- press reexperiencing symptoms through play that refers directly or symbolically to the trauma. They may not manifest fearful reactions at the time of the exposure or during reex- periencing. Parents may report a wide range of emotional or behavioral changes in young children. Children may focus on imagined interventions in their play or storytelling. In ad- dition to avoidance, children may become preoccupied with reminders. Because of young children’s limitations in expressing thoughts or labeling emotions, negative alterations in mood or cognition tend to involve primarily mood changes. Children may experience co- occurring traumas (e.g., physical abuse, witnessing domestic violence) and in chronic cir- cumstances may not be able to identify onset of symptomatology. Avoidant behavior may be associated with restricted play or exploratory behavior in young children; reduced par- ticipation in new activities in school-age children; or reluctance to pursue developmental op- portunities in adolescents (e.g., dating, driving). Older children and adolescents may judge themselves as cowardly. Adolescents may harbor beliefs of being changed in ways that make them socially undesirable and estrange them from peers (e.g., ”Now I’ll never fit in”) and lose aspirations for the future. Irritable or aggressive behavior in children and adoles- cents can interfere with peer relationships and school behavior. Reckless behavior may lead to accidental injury to self or others, thrill-seeking, or high-risk behaviors. Individuals who continue to experience PTSD into older adulthood may express fewer symptoms of hy- perarousal, avoidance, and negative cognitions and mood compared with younger adults with PTSD, although adults exposed to traumatic events during later life may display more avoidance, hyperarousal, sleep problems, and crying spells than do younger adults exposed to the same traumatic events. In older individuals, the disorder is associated with negative health perceptions, primary care utilization, and suicidal ideation. Risk (and protective) factors are generally divided into pretraumatic, peritraumatic, and posttraumatic factors. Temperamental. These include childhood emotional problems by age 6 years (e.g., prior traumatic exposure, externalizing or anxiety problems) and prior mental disorders (e.g., panic disorder, depressive disorder, PTSD, or obsessive-compulsive disorder [OCD]). Environmental. These include lower socioeconomic status; lower education; exposure to prior trauma (especially during childhood); childhood adversity (e.g., economic depriva- tion, family dysfunction, parental separation or death); cultural characteristics (e.g., fatal- and a family psychiatric history. Social support prior to event exposure is protective. Genetic and physiological. These include female gender and younger age at the time of trauma exposure (for adults). Certain genotypes may either be protective or increase risk of PTSD after exposure to traumatic events. Environmental. These include severity (dose) of the trauma (the greater the magnitude of trauma, the greater the likelihood of PTSD), perceived life threat, personal injury, in- nessed threat to a caregiver in children), and, for military personnel, being a perpetrator, witnessing atrocities, or killing the enemy. Finally, dissociation that occurs during the trauma and persists afterward is a risk factor. Temperamental. These include negative appraisals, inappropriate coping strategies, and development of acute stress disorder. Environmental. These include subsequent exposure to repeated upsetting reminders, subse— quent adverse life events, and financial or other trauma-related losses. Social support (includ- ing family stability, for children) is a protective factor that moderates outcome after trauma. The risk of onset and severity of PTSD may differ across cultural groups as a result of vari- ation in the type of traumatic exposure (e.g., genocide), the impact on disorder severity of the meaning attributed to the traumatic event (e.g., inability to perform funerary rites after a mass killing), the ongoing sociocultural context (e.g., residing among unpunished per- petrators in postconflict settings), and other cultural factors (e.g., acculturative stress in immigrants). The relative risk for PTSD of particular exposures (e.g., religious persecu- tion) may vary across cultural groups. The clinical expression of the symptoms or symp- tom clusters of PTSD may vary culturally, particularly with respect to avoidance and numbing symptoms, distressing dreams, and somatic symptoms (e.g., dizziness, short- ness of breath, heat sensations). Cultural syndromes and idioms of distress influence the expression of PTSD and the range of comorbid disorders in different cultures by providing behavioral and cognitive templates that link traumatic exposures to specific symptoms. For example, panic attack symptoms may be salient in PTSD among Cambodians and Latin Americans because of the association of traumatic exposure with panic-like khytil attacks and atuque de nervios. Comprehensive evaluation of local expressions of PTSD should include assessment of cul- tural concepts of distress (see the chapter "Cultural Formulation" in Section III). PTSD is more prevalent among females than among males across the lifespan. Females in the general population experience PTSD for a longer duration than do males. At least some of the increased risk for PTSD in females appears to be attributable to a greater likelihood of exposure to traumatic events, such as rape, and other forms of interpersonal violence. Within populations exposed specifically to such stressors, gender differences in risk for PTSD are attenuated or nonsignificant.Traumatic events such as childhood abuse increase a person’s suicide risk. PTSD is associated with suicidal ideation and suicide attempts, and presence of the disorder may indicate which individuals with ideation eventually make a suicide plan or actually attempt suicide. PTSD is associated with high levels of social, occupational, and physical disability, as well as considerable economic costs and high levels of medical utilization. Impaired function- ing is exhibited across social, interpersonal, developmental, educational, physical health, and occupational domains. In community and veteran samples, PTSD is associated with poor social and family relationships, absenteeism from work, lower income, and lower ed- ucational and occupational success. Adjustment disorders. In adjustment disorders, the stressor can be of any severity or type rather than that required by PTSD Criterion A. The diagnosis of an adjustment dis- order is used when the response to a stressor that meets PTSD Criterion A does not meet all other PTSD criteria (or criteria for another mental disorder). An adjustment disorder is also diagnosed when the symptom pattern of PTSD occurs in response to a stressor that does not meet PTSD Criterion A (e.g., spouse leaving, being fired). Other posttraumatic disorders and conditions. Not all psychopathology that occurs in individuals exposed to an extreme stressor should necessarily be attributed to PTSD. The diagnosis requires that trauma exposure precede the onset or exacerbation of pertinent symptoms. Moreover, if the symptom response pattern to the extreme stressor meets cri- teria for another mental disorder, these diagnoses should be given instead of, or in addi- tion to, PTSD. Other diagnoses and conditions are excluded if they are better explained by PTSD (e.g., symptoms of panic disorder that occur only after exposure to traumatic re- minders). If severe, symptom response patterns to the extreme stressor may warrant a sep- arate diagnosis (e.g., dissociative amnesia). Acute stress disorder. Acute stress disorder is distinguished from PTSD because the symptom pattern in acute stress disorder is restricted to a duration of 3 days to 1 month following exposure to the traumatic event. Anxiety disorders and obsessive-compulsive disorder. In OCD, there are recurrent intrusive thoughts, but these meet the definition of an obsession. In addition, the intrusive thoughts are not related to an experienced traumatic event, compulsions are usually pres- ent, and other symptoms of PTSD or acute stress disorder are typically absent. Neither the arousal and dissociative symptoms of panic disorder nor the avoidance, irritability, and anxiety of generalized anxiety disorder are associated with a specific traumatic event. The symptoms of separation anxiety disorder are clearly related to separation from home or family, rather than to a traumatic event. Major depressive disorder. Major depression may or may not be preceded by a trau- matic event and should be diagnosed if other PTSD symptoms are absent. Specifically, ma- jor depressive disorder does not include any PTSD Criterion B or C symptoms. Nor does it include a number of symptoms from PTSD Criterion D or E. Personality disorders. Interpersonal difficulties that had their onset, or were greatly ex- acerbated, after exposure to a traumatic event may be an indication of PTSD, rather than a personality disorder, in which such difficulties would be expected independently Of any traumatic exposure. Dissociative disorders. Dissociative amnesia, dissociative identity disorder, and de- personalization-derealization disorder may or may not be preceded by exposure to a trau- matic event or may or may not have co—occurring PTSD symptoms. When full PTSD criteria are also met, however, the I’ISD ”with dissociative symptoms” subtype should be considered. Conversion disorder (functional neurological symptom disorder). New onset of somatic symptoms within the context of posttraumatic distress might be an indication of PTSD rather than conversion disorder (functional neurological symptom disorder). Psychotic disorders. Flashbacks in PTSD must be distinguished from illusions, halluci- nations, and other perceptual disturbances that may occur in schizophrenia, brief psy- chotic disorder, and other psychotic disorders; depressive and bipolar disorders with orders due to another medical condition. Traumatic brain injury. When a brain injury occurs in the context of a traumatic event (e.g., traumatic accident, bomb blast, acceleration/ deceleration trauma), symptoms of PTSD may appear. An event causing head trauma may also constitute a psychological traumatic event, and tramautic brain injury (TBI)—related neurocognitive symptoms are not mutually exclusive and may occur concurrently. Symptoms previously termed postcancussive (e.g., headaches, dizziness, sensitivity to light or sound, irritability, concentration deficits) can occur in brain- injured and non-brain—injured populations, including individuals with PTSD. Because symp- toms of PTSD and TBI-related neurocognitive symptoms can overlap, a differential diagnosis between PTSD and neurocognitive disorder symptoms attributable to TBI may be possible based on the presence of symptoms that are distinctive to each presentation. Whereas reexpe- riencing and avoidance are characteristic of PTSD and not the effects of TBI, persistent disori- entation and confusion are more specific to TBI (neurocognitive effects) than to PTSD. Individuals with PTSD are 80% more likely than those without PTSD to have symptoms that meet diagnostic criteria for at least one other mental disorder (e.g., depressive, bipo- lar, anxiety, or substance use disorders). Comorbid substance use disorder and conduct disorder are more common among males than among females. Among US. military per- sonnel and combat veterans who have been deployed to recent wars in Afghanistan and Iraq, co-occurrence of PTSD and mild TBI is 48%. Although most young children with PTSD also have at least one other diagnosis, the patterns of comorbidity are different than in adults, with oppositional defiant disorder and separation anxiety disorder predominat- ing. Finally, there is considerable comorbidity between PTSD and major neurocognitive disorder and some overlapping symptoms between these disorders. Diagnostic Criteria 308.3 (F43.0)A. Exposure to actual or threatened death, serious injury. or sexual violation in one (or more) of the following ways: 1. Directly experiencing the traumatic event(s). 2. Witnessing, in person, the event(s) as it occurred to others. 3. Learning that the event(s) occurred to a close family member or close friend. Note: In cases of actual or threatened death of a family member or friend, the event(s) must have been violent or accidental. 4. Experiencing repeated or extreme exposure to aversive details of the traumatic event(s) (e.g., first responders collecting human remains, police officers repeatedly exposed to details of child abuse). Note: This does not apply to exposure through electronic media, television, mov- ies, or pictures, unless this exposure is work related. B. Presence of nine (or more) of the following symptoms from any of the five categories of intrusion, negative mood, dissociation, avoidance, and arousal, beginning or wors- ening after the traumatic event(s) occurred: 1. Recurrent, involuntary, and intrusive distressing memories of the traumatic event(s). Note: In children, repetitive play may occur in which themes or aspects of the traumatic event(s) are expressed. 2. Recurrent distressing dreams in which the content and/or affect of the dream are related to, the event(s). Note: In children, there may be frightening dreams without recognizable content. 3. Dissociative reactions (e.g., flashbacks) in which the individual feels or acts as if the traumatic event(s) were recurring. (Such reactions may occur on a continuum, with the most extreme expression being a complete loss of awareness of present surroundings.) Note: In children, trauma-specitic reenactment may occur in play. 4. Intense or prolonged psychological distress or marked physiological reactions in re- sponse to internal or external cues that symbolize or resemble an aspect of the traumatic event(s). 5. Persistent inability to experience positive emotions (e.g., inability to experience happiness, satisfaction, or loving feelings). 6. An altered sense of the reality of one's surroundings or oneself (e.g., seeing oneself from another's perspective, being in a daze, time slowing). 7. Inability to remember an important aspect of the traumatic event(s) (typically due to dissociative amnesia and not to other factors such as head injury. alcohol, or drugs). 8. Efforts to avoid distressing memories, thoughts, or feelings about or closely asso- ciated with the traumatic event(s). 9. Efforts to avoid external reminders (people. places, conversations, activities, ob- jects, situations) that arouse distressing memories, thoughts, or feelings about or closely associated with the traumatic event(s). 10. Sleep disturbance (e.g., difficulty falling or staying asleep, restless sleep). 11. Irritable behavior and angry outbursts (with little or no provocation), typically ex- pressed as verbal or physical aggression toward people or objects. 12. Hypervigilance.13. Problems with concentration.14. Exaggerated startle response.C. Duration of the disturbance (symptoms in Criterion B) is 3 days to 1 month after trauma exposure. Note: Symptoms typically begin immediately after the trauma. but persistence for at least 3 days and up to a month is needed to meet disorder criteria. D. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. E. The disturbance is not attributable to the physiological effects of a substance (e.g., medication or alcohol) or another medical condition (e.g., mild traumatic brain injury) and is not better explained by brief psychotic disorder. The essential feature of acute stress disorder is the development of characteristic symp- toms lasting from 3 days to 1 month following exposure to one or more traumatic events. Traumatic events that are experienced directly include, but are not limited to, exposure to war as a combatant or civilian, threatened or actual violent personal assault (e.g., sexual violence, physical attack, active combat, mugging, childhood physical and / or sexual vio- lence, being kidnapped, being taken hostage, terrorist attack, torture), natural or human- made disasters (e.g., earthquake, hurricane, airplane crash), and severe accident (e.g., severe motor vehicle, industrial accident). For children, sexually traumatic events may include inappropriate sexual experiences without violence or injury. A life-threatening illness or debilitating medical condition is not necessarily considered a traumatic event. Medical incidents that qualify as traumatic events involve sudden, catastrophic events (e.g., waking during surgery, anaphylactic shock). Stressful events that do not possess the severe and traumatic components of events encompassed by Criterion A may lead to an adjust- ment disorder but not to acute stress disorder. The clinical presentation of acute stress disorder may vary by individual but typically involves an anxiety response that includes some form of reexperiencing of or reactivity to the traumatic event. In some individuals, a dissociative or detached presentation can pre- dominate, although these individuals typically will also display strong emotional or phys- iological reactivity in response to trauma reminders. In other individuals, there can be a strong anger response in which reactivity is characterized by irritable or possibly aggres- sive responses. The full symptom picture must be present for at least 3 days after the trau- matic event and can be diagnosed only up to 1 month after the event. Symptoms that occur immediately after the event but resolve in less than 3 days would not meet criteria for acute stress disorder. Witnessed events include, but are not limited to, observing threatened or serious in- jury, unnatural death, physical or sexual violence inflicted on another individual as a re- sult of violent assault, severe domestic violence, severe accident, war, and disaster; it may also include witnessing a medical catastrophe (e.g., a life-threatening hemorrhage) involv- ing one’s child. Events experienced indirectly through learning about the event are limited to close relatives or close friends. Such events must have been violent or accidental—death due to natural causes does not qualify—and include violent personal assault, suicide, se- rious accident, or serious injury. The disorder may be especially severe when the stressor is interpersonal and intentional (e.g., torture, rape). The likelihood of developing this dis- order may increase as the intensity of and physical proximity to the stressor increase. The traumatic event can be reexperienced in various ways. Commonly, the individual has recurrent and intrusive recollections of the event (Criterion Bl). The recollections are spontaneous or triggered recurrent memories of the event that usually occur in response to a stimulus that is reminiscent of the traumatic experience (e.g., the sound of a backfiring car triggering memories of gunshots). These intrusive memories often include sensory (e.g., sensing the intense heat that was perceived in a house fire), emotional (e.g., experi- encing the fear of believing that one was about to be stabbed), or physiological (e.g., expe- riencing the shortness of breath that one suffered during a near-drowning) components. Distressing dreams may contain themes that are representative of or thematically re- lated to the major threats involved in the traumatic event. (For example, in the case of a motor vehicle accident survivor, the distressing dreams may involve crashing cars gener- ally; in the case of a combat soldier, the distressing dreams may involve being harmed in ways other than combat.) Dissociative states may last from a few seconds to several hours, or even days, during which components of the event are relived and the individual behaves as though experi- encing the event at that moment. While dissociative responses are common during a trau- matic event, only dissociative responses that persist beyond 3 days after trauma exposure are considered for the diagnosis of acute stress disorder. For young children, reenactment of events related to trauma may appear in play and may include dissociative moments (e.g., a child who survives a motor vehicle accident may repeatedly crash toy cars during play in a focused and distressing manner). These episodes, often referred to as flashbacks, are typically brief but involve a sense that the traumatic event is occurring in the present rather than being remembered in the past and are associated with significant distress. Some individuals with the disorder do not have intrusive memories of the event itself, they are exposed to triggering events that resemble or symbolize an aspect of the traumatic event (e.g., windy days for children after a hurricane, entering an elevator for a male or fe- male who was raped in an elevator, seeing someone who resembles one’s perpetrator). The triggering cue could be a physical sensation (e.g., a sense of heat for a burn victim, diz- ziness for survivors of head trauma), particularly for individuals with highly somatic pre- sentations. The individual may have a persistent inability to feel positive emotions (e.g., happiness, joy, satisfaction, or emotions associated with intimacy, tenderness, or sexual- ity) but can experience negative emotions such as fear, sadness, anger, guilt, or shame. Alterations in awareness can include depersonalization, a detached sense of oneself (e.g., seeing oneself from the other side of the room), or derealization, having a distorted view of one’s surroundings (e.g., perceiving that things are moving in slow motion, seeing things in a daze, not being aware of events that one would normally encode). Some individuals also report an inability to remember an important aspect of the traumatic event that was presumably encoded. This symptom is attributable to dissociative amnesia and is not at- tributable to head injury, alcohol, or drugs. Stimuli associated with the trauma are persistently avoided. The individual may refuse to discuss the traumatic experience or may engage in avoidance strategies to minimize awareness of emotional reactions (e.g., excessive alcohol use when reminded of the ex- perience). This behavioral avoidance may include avoiding watching news coverage of the traumatic experience, refusing to return to a workplace where the trauma occurred, or avoiding interacting with others who shared the same traumatic experience. It is very common for individuals with acute stress disorder to experience problems with sleep onset and maintenance, which may be associated with nightmares or with gen- eralized elevated arousal that prevents adequate sleep. Individuals with acute stress dis- behavior with little provocation. Acute stress disorder is often characterized by a height- ened sensitivity to potential threats, including those that are related to the traumatic ex- perience (e.g., a motor vehicle accident victim may be especially sensitive to the threat potentially caused by any cars or trucks) or those not related to the traumatic event (e.g., fear of having a heart attack). Concentration difficulties, including difficulty remembering daily events (e.g., forgetting one’s telephone number) or attending to focused tasks (e.g., following a conversation for a sustained period of time), are commonly reported. Individ- uals with acute stress disorder may be very reactive to unexpected stimuli, displaying a heightened startle response or jumpiness to loud noises or unexpected movements (e.g., the individual may jump markedly in the response to a telephone ringing). Individuals with acute stress disorder commonly engage in catastrophic or extremely neg- ative thoughts about their role in the traumatic event, their response to the traumatic ex- perience, or the likelihood of future harm. For example, an individual with acute stress disorder may feel excessively guilty about not having prevented the traumatic event or about not adapting to the experience more successfully. Individuals with acute stress dis- order may also interpret their symptoms in a catastrophic manner, such that flashback memories or emotional numbing may be interpreted as a sign of diminished mental ca- pacity. It is common for individuals with acute stress disorder to experience panic attacks in the initial month after trauma exposure that may be triggered by trauma reminders or may apparently occur spontaneously. Additionally, individuals with acute stress disorder may display chaotic or impulsive behavior. For example, individuals may drive reck- lessly, make irrational decisions, or gamble excessively. In children, there may be sig- nificant separation anxiety, possibly manifested by excessive needs for attention from caregivers. In the case of bereavement following a death that occurred in traumatic cir- cumstances, the symptoms of acute stress disorder can involve acute grief reactions. In such cases, reexperiencing, dissociative, and arousal symptoms may involve reactions to the loss, such as intrusive memories of the circumstances of the individual’s death, disbe- lief that the individual has died, and anger about the death. Postconcussive symptoms (e.g., headaches, dizziness, sensitivity to light or sound, irritability, concentration deficits), which occur frequently following mild traumatic brain injury, are also frequently seen in individuals with acute stress disorder. Postconcussive symptoms are equally common in brain-injured and non—brain-injured populations, and the frequent occurrence of postcon- cussive symptoms could be attributable to acute stress disorder symptoms. The prevalence of acute stress disorder in recently trauma-exposed populations (i.e., within 1 month of trauma exposure) varies according to the nature of the event and the context in which it is assessed. In both US. and non-U.S. populations, acute stress disorder tends to be identified in less than 20% of cases following traumatic events that do not in- volve interpersonal assault; 13%—21% of motor vehicle accidents, 14% of mild traumatic brain injury, 19% of assault, 10% of severe burns, and 6%—12% of industrial accidents. Higher rates (i.e., 20%—50%) are reported following interpersonal traumatic events, in- cluding assault, rape, and witnessing a mass shooting. Acute stress disorder cannot be diagnosed unti13 days after a traumatic event. Although acute stress disorder may progress to posttraumatic stress disorder (PTSD) after 1 month, it may also be a transient stress response that remits within 1 month of trauma exposure and does not result in PTSD. Approximately half of individuals who eventually develop PTSD initially present with acute stress disorder. Symptom worsening during the initial month can occur, often as a result of ongoing life stressors or further traumatic events. The forms of reexperiencing can vary across development. Unlike adults or adoles- cents, young children may report frightening dreams without content that clearly reflects aspects of the trauma (e.g., waking in fright in the aftermath of the trauma but being unable to relate the content of the dream to the traumatic event). Children age 6 years and younger are more likely than older children to express reexperiencing symptoms through play that refers directly or symbolically to the trauma. For example, a very young child who sur- vived a fire may draw pictures of flames. Young children also do not necessarily manifest fearful reactions at the time of the exposure or even during reexperiencing. Parents typi- cally report a range of emotional expressions, such as anger, shame, or withdrawal, and even excessively bright positive affect, in young children who are traumatized. Although children may avoid reminders of the trauma, they sometimes become preoccupied with reminders (e.g., a young child bitten by a dog may talk about dogs constantly yet avoid g0- ing outside because of fear of coming into contact with a dog). Temperamental. Risk factors include prior mental disorder, high levels of negative af- fectivity (neuroticism), greater perceived severity of the traumatic event, and an avoidant coping style. Catastrophic appraisals of the traumatic experience, often characterized by exaggerated appraisals of future harm, guilt, or hopelessness, are strongly predictive of acute stress disorder. Environmental. First and foremost, an individual must be exposed to a traumatic event to be at risk for acute stress disorder. Risk factors for the disorder include a history of prior trauma. Genetic and physiological. Females are at greater risk for developing acute stress dis- order. \ Elevated reactivity, as reflected by acoustic startle response, prior to trauma exposure increases the risk for developing acute stress disorder. The profile of symptoms of acute stress disorder may vary cross-culturally, particularly with respect to dissociative symptoms, nightmares, avoidance, and somatic symptoms (e.g., dizziness, shortness of breath, heat sensations). Cultural syndromes and idioms of distress shape the local symptom profiles of acute stress disorder. Some cultural groups may display variants of dissociative responses, such as possession or trancelike behaviors in the initial month after trauma exposure. Panic symptoms may be salient in acute stress disorder among Cambodians because of the association of traumatic exposure with panic- like khyfil attacks, and ataque de nervios among Latin Americans may also follow a traumatic exposure. Acute stress disorder is more prevalent among females than among males. Sex-linked neu- robiological differences in stress response may contribute to females’ increased risk for acute stress disorder. The increased risk for the disorder in females may be attributable in part to a greater likelihood of exposure to the types of traumatic events with a high con- ditional risk for acute stress disorder, such as rape and other interpersonal violence. Functional Consequences of Acute Stress DisorderImpaired functioning in social, interpersonal, or occupational domains has been shown across survivors of accidents, assault, and rape who develop acute stress disorder. The ex- treme levels of anxiety that may be associated with acute stress disorder may interfere with sleep, energy levels, and capacity to attend to tasks. Avoidance in acute stress dis- order can result in generalized withdrawal from many situations that are perceived as potentially threatening, which can lead to nonattendance of medical appointments, avoid- ance of driving to important appointments, and absenteeism from work. Adjustment disorders. In acute stress disorder, the stressor can be of any severity rather than of the severity and type required by Criterion A of acute stress disorder. The diagnosis of an adjustment disorder is used when the response to a Criterion A event does not meet the cri- teria for acute stress disorder (or another specific mental disorder) and when the symptom pat- tern of acute stress disorder occurs in response to a stressor that does not meet Criterion A for exposure to actual or threatened death, serious injury, or sexual violence (e.g., spouse leaving, being fired). For example, severe stress reactions to life—threatening illnesses that may include some acute stress disorder symptoms may be more appropriately described as an adjustment disorder. Some forms of acute stress response do not include acute stress disorder symptoms and may be characterized by anger, depression, or guilt. These responses are more appro- priately described as primarily an adjustment disorder. Depressive or anger responses in an adjustment disorder may involve rumination about the traumatic event, as opposed to invol- untary and intrusive distressing memories in acute stress disorder. Panic disorder. Spontaneous panic attacks are very common in acute stress disorder. However, panic disorder is diagnosed only if panic attacks are unexpected and there is anxiety about future attacks or maladaptive changes in behavior associated with fear of dire consequences of the attacks. Dissociative disorders. Severe dissociative responses (in the absence of characteristic acute stress disorder symptoms) may be diagnosed as derealization/depersonalization disorder. If severe amnesia of the trauma persists in the absence of characteristic acute stress disorder symptoms, the diagnosis of dissociative amnesia may be indicated. Posttraumatic stress disorder. Acute stress disorder is distinguished from PTSD because the symptom pattern in acute stress disorder must occur within 1 month of the traumatic event and resolve within that 1-month period. If the symptoms persist for more than 1 month and meet criteria for PTSD, the diagnosis is changed from acute stress disorder to PTSD. Obsessive-compulsive disorder. In obsessive-compulsive disorder, there are recurrent intrusive thoughts, but these meet the definition of an obsession. In addition, the intrusive thoughts are not related to an experienced traumatic event, compulsions are usually pres- ent, and other symptoms of acute stress disorder are typically absent. Psychotic disorders. Flashbacks in acute stress disorder must be distinguished from il- lusions, hallucinations, and other perceptual disturbances that may occur in schizophre- nia, other psychotic disorders, depressive or bipolar disorder with psychotic features, a delirium, substance/medication—induced disorders, and psychotic disorders due to an- other medical condition. Acute stress disorder flashbacks are distinguished from these other perceptual disturbances by being directly related to the traumatic experience and by occurring in the absence of other psychotic or substance—induced features. Traumatic brain injury. When a brain injury occurs in the context of a traumatic event (e.g., traumatic accident, bomb blast, acceleration/deceleration trauma), symptoms of acute stress disorder may appear. An event causing head trauma may also constitute a psychological traumatic event, and tramautic brain injury (TBI)—related neurocognitive symptoms are not mutually exclusive and may occur concurrently. Symptoms previously termed postconcussive (e.g., headaches, dizziness, sensitivity to light or sound, irritability, concentration deficits) can occur in brain-injured and non—brain injured populations, in- cluding individuals with acute stress disorder. Because symptoms of acute stress disorder and TBI-related neurocognitive symptoms can overlap, a differential diagnosis between acute stress disorder. and neurocognitive disorder symptoms attributable to TBI may be possible based on the presence of symptoms that are distinctive to each presenta- tion. Whereas reexperiencing and avoidance are characteristic of acute stress disorder and not the effects of TBI, persistent disorientation and confusion are more specific to TBI (neu- rocognitive effects) than to acute stress disorder. Furthermore, differential is aided by the fact that symptoms of acute stress disorder persist for up to only 1 month following trauma exposure. A. The development of emotional or behavioral symptoms in response to an identifiable stressor(s) occurring within 3 months of the onset of the stressor(s). B. These symptoms or behaviors are clinically significant, as evidenced by one or both of the following: 1. Marked distress that is out of proportion to the severity or intensity of the stressor, taking into account the external context and the cultural factors that might influence symptom severity and presentation. 2. Significant impairment in social, occupational, or other important areas of functioning. C. The stress-related disturbance does not meet the criteria for another mental disorder and is not merely an exacerbation of a preexisting mental disorder. D. The symptoms do not represent normal bereavement.E. Once the stressor or its consequences have terminated, the symptoms do not persist for more than an additional 6 months. Specify whether: 309.0 (F43.21) With depressed mood: Low mood, tearfulness, or feelings of hope- lessness are predominant. 309.24 (F43.22) With anxiety: Nervousness, worry, jitteriness, or separation anxiety is predominant. 309.28 (F43.23) With mixed anxiety and depressed mood: A combination of de- pression and anxiety is predominant. 309.3 (F43.24) With disturbance of conduct: Disturbance of conduct is predominant. 309.4 (F4325) With mixed disturbance of emotions and conduct: Both emotional symptoms (e.g., depression, anxiety) and a disturbance of conduct are predominant. 309.9 (F43.20) Unspecified: For maladaptive reactions that are not classifiable as one of the specific subtypes of adjustment disorder. The presence of emotional or behavioral symptoms in response to an identifiable stressor is the essential feature of adjustment disorders (Criterion A). The stressor may be a single event (e.g., a termination of a romantic relationship), or there may be multiple stressors (e.g., marked business difficulties and marital problems). Stressors may be recurrent (e.g., associated with seasonal business crises, unfulfilling sexual relationships) or continuous (e.g., a persistent painful illness with increasing disability, living in a crime-ridden neigh- borhood). Stressors may affect a single individual, an entire family, or a larger group or community (e.g., a natural disaster). Some stressors may accompany specific developmen- tal events (e.g., going to school, leaving a parental home, reentering a parental home, get- ting married, becoming a parent, failing to attain occupational goals, retirement). Adjustment disorders may be diagnosed following the death of a loved one when the intensity, quality, or persistence of grief reactions exceeds what normally might be ex- pected, when cultural, religious, or age-appropriate norms are taken into account. A more specific set of bereavement-related symptoms has been designated persistent complex be— reavement disorder. Adjustment disorders are associated with an increased risk of suicide attempts and completed suicide. Adjustment disorders are common, although prevalence may vary widely as a function of the population studied and the assessment methods used. The percentage of individuals in outpatient mental health treatment with a principal diagnosis of an adjustment disorder ranges from approximately 5% to 20%. In a hospital psychiatric consultation setting, it is often the most common diagnosis, frequently reaching 50%. By definition, the disturbance in adjustment disorders begins within 3 months of onset of a stressor and lasts no longer than 6 months after the stressor or its consequences have ceased. If the stressor is an acute event (e.g., being fired from a job), the onset of the dis- turbance is usually immediate (i.e., within a few days) and the duration is relatively brief (i.e., no more than a few months). If the stressor or its consequences persist, the adjustment disorder may also continue to be present and become the persistent form. Environmental. Individuals from disadvantaged life circumstances experience a high rate of stressors and may be at increased risk for adjustment disorders. The context of the individual’s cultural setting should be taken into account in making the clinical judgment of whether the individual’s response to the stressor is maladaptive or whether the associated distress is in excess of what would be expected. The nature, mean- ing, and experience of the stressors and the evaluation of the response to the stressors may vary across cultures. Functional Consequences of Adjustment DisordersThe subjective distress or impairment in functioning associated with adjustment disorders is frequently manifested as decreased performance at work or school and temporary changes in social relationships. An adjustment disorder may complicate the course of ill- ness in individuals who have a general medical condition (e.g., decreased compliance with the recommended medical regimen; increased length of hospital stay). Major depressive disorder. If an individual has symptoms that meet criteria for a major depressive disorder in response to a stressor, the diagnosis of an adjustment disorder is not applicable. The symptom profile of major depressive disorder differentiates it from ad- justment disorders. Posttraumatic stress disorder and acute stress disorder. In adjustment disorders, the stressor can be of any severity rather than of the severity and type required by Criterion A of acute stress disorder and posttraumatic stress disorder (PTSD). In distinguishing ad- justment disorders from these two posttraumatic diagnoses, there are both timing and symptom profile considerations. Adjustment disorders can be diagnosed immediately and persist up to 6 months after exposure to the traumatic event, whereas acute stress dis- order can only occur between 3 days and 1 month of exposure to the stressor, and PTSD cannot be diagnosed until at least 1 month has passed since the occurrence of the traumatic stressor. The required symptom profile for PTSD and acute stress disorder differentiates them from the adjustment disorders. With regard to symptom profiles, an adjustment dis- of either acute stress disorder or PTSD that do not meet or exceed the diagnostic threshold for either disorder. An adjustment disorder should also be diagnosed for individuals who have not been exposed to a traumatic event but who otherwise exhibit the full symptom pro- file of either acute stress disorder or PTSD. Personality disorders. With regard to personality disorders, some personality features may be associated with a vulnerability to situational distress that may resemble an adjust- ment disorder. The lifetime history of personality functioning will help inform the in- terpretation of distressed behaviors to aid in distinguishing a long-standing personality disorder from an adjustment disorder. In addition to some personality disorders incurring vulnerability to distress, stressors may also exacerbate personality disorder symptoms. In the presence of a personality disorder, if the symptom criteria for an adjustment disorder are met, and the stress-related disturbance exceeds what may be attributable to maladap- tive personality disorder symptoms (i.e., Criterion C is met), then the diagnosis of an ad- justment disorder should be made. Psychological factors affecting other medical conditions. In psychological factors af- fecting other medical conditions, specific psychological entities (e.g., psychological symp- toms, behaviors, other factors) exacerbate a medical condition. These psychological factors can precipitate, exacerbate, or put an individual at risk for medical illness, or they can worsen an existing condition. In contrast, an adjustment disorder is a reaction to the stressor (e.g., having a medical illness). Normative stress reactions. When bad things happen, most people get upset. This is not an adjustment disorder. The diagnosis should only be made when the magnitude of the distress (e.g., alterations in mood, anxiety, or conduct) exceeds what would normally be expected (which may vary in different cultures) or when the adverse event precipitates functional impairment. Adjustment disorders can accompany most mental disorders and any medical disorder. Adjustment disorders can be diagnosed in addition to another mental disorder only if the latter does not explain the particular symptoms that occur in reaction to the stressor. For example, an individual may develop an adjustment disorder, with depressed mood, after losing a job and at the same time have a diagnosis of obsessive-compulsive disorder. Or, long as the criteria for both are met. Adjustment disorders are common accompaniments of medical illness and may be the major psychological response to a medical disorder. 309.89 (F43.8)This category applies to presentations in which symptoms characteristic of a trauma- and stressor-related disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the trauma- and stressor-related disorders diagnostic class. The other specified trauma- and stressor-related disorder category is used in situa- tions in which the clinician chooses to communicate the specific reason that the presenta- tion does not meet the criteria for any specific trauma- and stressor-related disorder. This the specific reason (e.g., “persistent complex bereavement disorder”). Examples of presentations that can be specified using the “other specified" designation include the following: 1 . Adjustment-Iike disorders with delayed onset of symptoms that occur more than 3 months after the stressor. 2. Adiustment-like disorders with prolonged duration of more than 6 months with- out prolonged duration of stressor. 3. Ataque de nervios: See “Glossary of Cultural Concepts of Distress" in the Appendix. 4. Other cultural syndromes: See “Glossary of Cultural Concepts of Distress" in the Ap- pendix. 5. Persistent complex bereavement disorder: This disorder is characterized by severe and persistent grief and mourning reactions (see the chapter "Conditions for Further 309.9 (F43.9)This category applies to presentations in which symptoms characteristic of a trauma- and stressor-related disorder that cause clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning predominate but do not meet the full cri- teria for any of the disorders in the trauma- and stressor-related disorders diagnostic class. The unspecified trauma- or stressor-related disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific trauma- and stressor-related disorder, and includes presentations in which there is insuffi- cient information to make a more specific diagnosis (e.g., in emergency room settings). «.5 M» fissociativeDissociative d isorde rs are characterized by a disruption of and / or discontinuity in the normal integration of consciousness, memory, identity, emotion, perception, body representation, motor control, and behavior. Dissociative symptoms can potentially dis- rupt every area of psychological functioning. This chapter includes dissociative identity disorder, dissociative amnesia, depersonalization/derealization disorder, other specified dissociative disorder, and unspecified dissociative disorder. Dissociative symptoms are experienced as a) unbidden intrusions into awareness and behavior, with accompanying losses of continuity in subjective experience (i.e., “positive” dissociative symptoms such as fragmentation of identity, depersonalization, and dereal- ization) and / or b) inability to access information or to control mental functions that nor- mally are readily amenable to access or control (i.e., "negative” dissociative symptoms such as amnesia). The dissociative disorders are frequently found in the aftermath of trauma, and many of the symptoms, including embarrassment and confusion about the symptoms or a desire to hide them, are influenced by the proximity to trauma. In DSM-5, the dissociative disor- ders are placed next to, but are not part of, the trauma- and stressor—related disorders, re- flecting the close relationship between these diagnostic classes. Both acute stress disorder and posttraumatic stress disorder contain dissociative symptoms, such as amnesia, flash- backs, numbing, and depersonalization/derealization. Depersonalization/derealization disorder is characterized by clinically significant persis- tent or recurrent depersonalization (i.e., experiences of unreality or detachment from one’s mind, self, or body) and/ or derealization (i.e., experiences of unreality or detachment from one's surroundings). These alterations of experience are accompanied by intact reality testing. There is no evidence of any distinction between individuals with predominantly depersonalization versus derealization symptoms. Therefore, individuals with this disor- der can have depersonalization, derealization, or both. Dissociative amnesia is characterized by an inability to recall autobiographical informa- tion. This amnesia may be localized (i.e., an event or period of time), selective (i.e., a specific aspect of an event), or generalized (i.e., identity and life history). Dissociative amnesia is fun- damentally an inability to recall autobiographical information that is inconsistent with nor- mal forgetting. It may or may not involve purposeful travel or bewildered wandering (i.e., fugue). Although some individuals with amnesia promptly notice that they have ”lost time” or that they have a gap in their memory, most individuals with dissociative disorders are ini- tially unaware of their amnesias. For them, awareness of amnesia occurs only when personal identity is lost or when circumstances make these individuals aware that autobiographical information is missing (e.g., when they discover evidence of events they cannot recall or when others tell them or ask them about events they cannot recall). Until and unless this hap- pens, these individuals have ”amnesia for their amnesia.” Amnesia is experienced as an es- sential feature of dissociative amnesia; individuals may experience localized or selective amnesia most commonly, or generalized amnesia rarely. Dissociative fugue is rare in per— sons with dissociative amnesia but common in dissociative identity disorder. Dissociative identity disorder is characterized by a) the presence of two or more distinct personality states or an experience of possession and b) recurrent episodes of amnesia. The fragmentation of identity may vary with culture (e.g., possession-form presentations) and cir- cumstance. Thus, individuals may experience discontinuities in identity and memory that may not be immediately evident to others or are obscured by attempts to hide dysfunction. In- dividuals with dissociative identity disorder experience a) recurrent, inexplicable intrusions into their conscious functioning and sense of self (e.g., voices; dissociated actions and speech; intrusive thoughts, emotions, and impulses), b) alterations of sense of self (e.g., attitudes, pref- erences, and feeling like one’s body or actions are not one’s own), c) odd changes of perception (e.g., depersonalization or derealization, such as feeling detached from one’s body while cut- ting), and d) intermittent functional neurological symptoms. Stress often produces transient exacerbation of dissociative symptoms that makes them more evident. The residual category of other specified dissociative disorder has seven examples: chronic or recurrent mixed dissociative symptoms that approach, but fall short of, the diagnostic cri- teria for dissociative identity disorder; dissociative states secondary to brainwashing or thought reform; two acute presentations, of less than 1 month’s duration, of mixed dissociative symptoms, one of which is also marked by the presence of psychotic symptoms; and three sin- gle-symptom dissociative presentations—dissociative trance, dissociative stupor or coma, and Ganser’s syndrome (the giving of approximate and vague answers).Diagnostic Criteria 300.14 (F44.81)A. Disruption of identity characterized by two or more distinct personality states, which may be described in some cultures as an experience of possession. The disruption in identity involves marked discontinuity in sense of self and sense of agency, accompa- nied by related alterations in attect, behavior, consciousness, memory, perception, cognition, and/or sensory-motor functioning. These signs and symptoms may be ob- served by others or reported by the individual. B. Recurrent gaps in the recall of everyday events, important personal information, and/ or traumatic events that are inconsistent with ordinary forgetting. C. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. D. The disturbance is not a normal part of a broadly accepted cultural or religious practice. Note: In children, the symptoms are not better explained by imaginary playmates or other fantasy play. E. The symptoms are not attributable to the physiological el'Iects of a substance (e.g., (e.g., complex partial seizures). The defining feature of dissociative identity disorder is the presence of two or more dis- tinct personality states or an experience of possession (Criterion A). The overtness or covertness of these personality states, however, varies as a function of psychological motivation, current level of stress, culture, internal conflicts and dynamics, and emotional resilience. Sustained periods of identity disruption may occur when psychosocial pres- sures are severe and / or prolonged. In many possession-form cases of dissociative identity disorder, and in a small proportion of non—possession-form cases, manifestations of alter- nate identities are highly overt. Most individuals with non-possession—form dissociative identity disorder do not overtly display their discontinuity of identity for long periods of time; only a small minority present to clinical attention with observable alternation of identities. When alternate personality states are not directly observed, the disorder can be identified by two clusters of symptoms: 1) sudden alterations or discontinuities in sense of self and sense ofagency (Criterion A), and 2) recurrent dissociative amnesias (Criterion B). Criterion A symptoms are related to discontinuities of experience that can affect any aspect of an individual’s functioning. Individuals with dissociative identity disorder may report the feeling that they have suddenly become depersonalized observers of their ”own" speech and actions, which they may feel powerless to stop (sense of self). Such in- dividuals may also report perceptions of voices (e.g., a child’s voice; crying; the voice of a spiritual being). In some cases, voices are experienced as multiple, perplexing, indepen- dent thought streams over which the individual experiences no control. Strong emotions, impulses, and even speech or other actions may suddenly emerge, without a sense of per— sonal ownership or control (sense of agency). These emotions and impulses are frequently reported as ego-dystonic and puzzling. Attitudes, outlooks, and personal preferences (e.g., about food, activities, dress) may suddenly shift and then shift back. Individuals may report that their bodies feel different (e.g., like a small child, like the opposite gender, huge and muscular). Alterations in sense of self and loss of personal agency may be accompa- nied by a feeling that these attitudes, emotions, and behaviors—even one’s body—are ”not mine" and / or are "not under my control." Although most Criterion A symptoms are subjective, many of these sudden discontinuities in speech, affect, and behavior can be wit- nessed by family, friends, or the clinician. Non—epileptic seizures and other conversion symptoms are prominent in some presentations of dissociative identity disorder, espe- cially in some non—Western settings. The dissociative amnesia of individuals with dissociative identity disorder manifests in three primary ways: as 1) gaps in remote memory of personal life events (e.g., periods of childhood or adolescence; some important life events, such as the death of a grandparent, getting married, giving birth); 2) lapses in dependable memory (e.g., of what happened today, of well-leamed skills such as how to do their job, use a computer, read, drive); and 3) discovery of evidence of their everyday actions and tasks that they do not recollect do- ing (e.g., finding unexplained objects in their shopping bags or among their possessions; ”coming to” in the midst of doing something). Dissociative fugues, wherein the person discovers dissociated travel, are common. Thus, individuals with dissociative identity dis- order may report that they have suddenly found themselves at the beach, at work, in a night- club, or somewhere at home (e.g., in the closet, on a bed or sofa, in the corner) with no memory of how they came to be there. Amnesia in individuals with dissociative identity dis- order is not limited to stressful or traumatic events; these individuals often cannot recall everyday events as well. Individuals with dissociative identity disorder vary in their awareness and attitude to- ward their amnesias. It is common for these individuals to minimize their amnestic symp- toms. Some of their amnestic behaviors may be apparent to others—as when these persons do not recall something they were witnessed to have done or said, when they cannot remember their own name, or when they do not recognize their spouse, children, or close friends. Possession-form identities in dissociative identity disorder typically manifest as be- haviors that appear as if a "spirit,” supernatural being, or outside person has taken control, such that the individual begins speaking or acting in a distinctly different manner. For ex- ample, an individual’s behavior may give the appearance that her identity has been replaced by the "ghost” of a girl who committed suicide in the same community years before, speaking and acting as though she were still alive. Or an individual may be ”taken over" by a demon or deity, resulting in profound impairment, and demanding that the in- dividual or a relative be punished for a past act, followed by more subtle periods of iden- tity alteration. However, the majority of possession states around the world are normal, usually part of spiritual practice, and do not meet criteria for dissociative identity disor- der. The identities that arise during possession-form dissociative identity disorder present recurrently, are unwanted and involuntary, cause clinically significant distress or impair- ment (Criterion C), and are not a normal part of a broadly accepted cultural or religious practice (Criterion D). Individuals with dissociative identity disorder typically present with comorbid depression, anxiety, substance abuse, self—injury, non-epileptic seizures, or another common symp- tom. They often conceal, or are not fully aware of, disruptions in consciousness, amnesia, or other dissociative symptoms. Many individuals with dissociative identity disorder re- port dissociative flashbacks during which they undergo a sensory reliving of a previous event as though it were occurring in the present, often with a change of identity, a partial or complete loss of contact with or disorientation to current reality during the flashback, and a subsequent amnesia for the content of the flashback. Individuals with the disorder typically report multiple types of interpersonal maltreatment during childhood and adult- hood. Nonmaltreatment forms of overwhelming early life events, such as multiple long, painful, early-life medical procedures, also may be reported. Self-mutilation and suicidal behavior are frequent. On standardized measures, these individuals report higher levels of hypnotizability and dissociativity compared with other clinical groups and healthy con- trol subjects. Some individuals experience transient psychotic phenomena or episodes. Several brain regions have been implicated in the pathophysiology of dissociative identity disorder, including the orbitofrontal cortex, hippocampus, parahippocampal gyrus, and amygdala. The 12-month prevalence of dissociative identity disorder among adults in a small U.S. community study was 1.5%. The prevalence across genders in that study was 1.6% for males and 1.4% for females. Dissociative identity disorder is associated with overwhelming experiences, traumatic events, and / or abuse occurring in childhood. The full disorder may first manifest at al- most any age (from earliest childhood to late life). Dissociation in children may generate problems with memory, concentration, attachment, and traumatic play. Nevertheless, chil- dren usually do not present with identity changes; instead they present primarily with over- lap and interference among mental states (Criten'on A phenomena), with symptoms related to discontinuities of experience. Sudden changes in identity during adolescence may ap- pear to be just adolescent turmoil or the early stages of another mental disorder. Older individuals may present to treatment with what appear to be late-life mood disorders, ob- sessive-compulsive disorder, paranoia, psychotic mood disorders, or even cognitive dis- orders due to dissociative amnesia. In some cases, disruptive affects and memories may increasingly intrude into awareness with advancing age. moval from the traumatizing situation (e.g., through leaving home); 2) the individual's children reaching the same age at which the individual was originally abused or trauma- tized; 3) later traumatic experiences, even seemingly inconsequential ones, like a minor motor vehicle accident; or 4) the death of, or the onset of a fatal illness in, their abuser(s). Environmental. Interpersonal physical and sexual abuse is associated with an increased risk of dissociative identity disorder. Prevalence of childhood abuse and neglect in the United States, Canada, and Europe among those with the disorder is about 90%. Other forms of traumatizing experiences, including childhood medical and surgical procedures, war, childhood prostitution, and terrorism, have been reported. Course modifiers. Ongoing abuse, later-life retraumatization, comorbidity with mental disorders, severe medical illness, and delay in appropriate treatment are associated with poorer prognosis. Many features of dissociative identity disorder can be influenced by the individual’s cul- tural background. Individuals with this disorder may present with prominent medically unexplained neurological symptoms, such as non—epileptic seizures, paralyses, or sensory loss, in cultural settings where such symptoms are common. Similarly, in settings where normative possession is common (e.g., rural areas in the developing world, among certain religious groups in the United States and Europe), the fragmented identities may take the form of possessing spirits, deities, demons, animals, or mythical figures. Acculturation or prolonged intercultural contact may shape the characteristics of the other identities (e.g., identities in India may speak English exclusively and wear Western clothes). Possession- sion states in that the former is involuntary, distressing, uncontrollable, and often recur- rent or persistent; involves conflict between the individual and his or her surrounding family, social, or work milieu; and is manifested at times and in places that violate the norms of the culture or religion. Females with dissociative identity disorder predominate in adult clinical settings but not in child clinical settings. Adult males with dissociative identity disorder may deny their symptoms and trauma histories, and this can lead to elevated rates of false negative di- agnosis. Females with dissociative identity disorder present more frequently with acute dissociative states (e.g., flashbacks, amnesia, fugue, functional neurological [conversion] symptoms, hallucinations, self—mutilation). Males commonly exhibit more criminal or vi— olent behavior than females; among males, common triggers of acute dissociative states in- clude combat, prison conditions, and physical or sexual assaults. Over 70% of outpatients with dissociative identity disorder have attempted suicide; mul- tiple attempts are common, and other self-injurious behavior is frequent. Assessment of suicide risk may be complicated when there is amnesia for past suicidal behavior or when the presenting identity does not feel suicidal and is unaware that other dissociated iden- tities do. Impairment varies widely, from apparently minimal (e.g., in high-functioning profession- als) to profound. Regardless of level of disability, individuals with dissociative identity disorder commonly minimize the impact of their dissociative and posttraumatic symp- toms. The symptoms of higher-functioning individuals may impair their relational, mar- ital, family, and parenting functions more than their occupational and professional life (although the latter also may be affected). With appropriate treatment, many impaired in- dividuals show marked improvement in occupational and personal functioning. How- ever, some remain highly impaired in most activities of living. These individuals may only respond to treatment very slowly, with gradual reduction in or improved tolerance of their dissociative and posttraumatic symptoms. Long-term supportive treatment may slowly increase these individuals’ ability to manage their symptoms and decrease use of more restrictive levels of care. Other specified dissociative disorder. The core of dissociative identity disorder is the division of identity, with recurrent disruption of conscious functioning and sense of self. This central feature is shared with one form of other specified dissociative disorder, which may be distinguished from dissociative identity disorder by the presence of chronic or re- disorder or are not accompanied by recurrent amnesia. Major depressive disorder. Individuals with dissociative identity disorder are often de- pressed, and their symptoms may appear to meet the criteria for a major depressive episode. major depressive disorder. Other specified depressive disorder in individuals with dissocia- tive identity disorder often has an important feature: the depressed mood and cognitionsfluc- tuate because they are experienced in some identity states but not others. Bipolar disorders. Individuals with dissociative identity disorder are often misdiag- nosed with a bipolar disorder, most often bipolar II disorder. The relatively rapid shifts in mood in individuals with this disorder—typically within minutes or hours, in contrast to the slower mood changes typically seen in individuals with bipolar disorders—are due to the rapid, subjective shifts in mood commonly reported across dissociative states, some- times accompanied by fluctuation in levels of activation. Furthermore, in dissociative identity disorder, elevated or depressed mood may be displayed in conjunction with overt identities, so one or the other mood may predominate for a relatively long period of time (often for days) or may shift within minutes. Posttraumatic stress disorder. Some traumatized individuals have both posttraumatic stress disorder (PTSD) and dissociative identity disorder. Accordingly, it is crucial to dis- tinguish between individuals with PTSD only and individuals who have both PTSD and dissociative identity disorder. This differential diagnosis requires that the clinician estab- lish the presence or absence of dissociative symptoms that are not characteristic of acute stress disorder or PTSD. Some individuals with PTSD manifest dissociative symptoms that also occur in dissociative identity disorder: 1) amnesia for some aspects of trauma, 2) dis- sociative flashbacks (i.e., reliving of the trauma, with reduced awareness of one’s current orientation), and 3) symptoms of intrusion and avoidance, negative alterations in cogni- tion and mood, and hyperarousal that are focused around the traumatic event. On the other hand, individuals with dissociative identity disorder manifest dissociative symptoms that are not a manifestation of PTSD: 1) amnesias for many everyday (i.e., nontraumatic) events, 2) dissociative flashbacks that may be followed by amnesia for the content of the flashback, 3) disruptive intrusions (unrelated to traumatic material) by dissociated identity states into the individual’s sense of self and agency, and 4) infrequent, full-blown changes among different identity states. Psychotic disorders. Dissociative identity disorder may be confused with schizophre- nia or other psychotic disorders. The personified, internally communicative inner voices of dissociative identity disorder, especially of a child (e.g., ”I hear a little girl crying in a closet and an angry man yelling at her"), may be mistaken for psychotic hallucinations. Dissociative experiences of identity fragmentation or possession, and of perceived loss of control over thoughts, feelings, impulses, and acts, may be confused with signs of formal thought disorder, such as thought insertion or withdrawal. Individuals with dissociative identity disorder may also report visual, tactile, olfactory, gustatory, and somatic halluci- nations, which are usually related to posttraumatic and dissociative factors, such as partial flashbacks. Individuals with dissociative identity disorder experience these symptoms as caused by alternate identities, do not have delusional explanations for the phenomena, and often describe the symptoms in a personified way (e.g., ”I feel like someone else wants to cry with my eyes”). Persecutory and derogatory internal voices in dissociative identity disorder associated with depressive symptoms may be misdiagnosed as major depression with psychotic features. Chaotic identity change and acute intrusions that disrupt thought processes may be distinguished from brief psychotic disorder by the predominance of dis- sociative symptoms and amnesia for the episode, and diagnostic evaluation after cessation of the crisis can help confirm the diagnosis. Substance/medication-induced disorders. Symptoms associated with the physiological effects of a substance can be distinguished from dissociative identity disorder if the sub- stance in question is judged to be etiologically related to the disturbance. Personality disorders. Individuals with dissociative identity disorder often present identi- ties that appear to encapsulate a variety of severe personality disorder feahires, suggesting a differential diagnosis of personality disorder, especially of the borderline type. Importantly, however, the individual’s longitudinal variability in personality style (due to inconsistency among identities) differs from the pervasive and persistent dysfimction in affect management and interpersonal relationships typical of those with personality disorders. Conversion disorder (functional neurological symptom disorder). This disorder may be distinguished from dissociative identity disorder by the absence of an identity disruption characterized by two or more distinct personality states or an experience of possession. Dissociative amnesia in conversion disorder is more limited and circumscribed (e.g., am- nesia for a non-epileptic seizure). Seizure disorders. Individuals with dissociative identity disorder may present with sei- zurelike symptoms and behaviors that resemble complex partial seizures with temporal lobe foci. These include déja vu, jamais vu, depersonalization, derealization, out—of—body experiences, amnesia, disruptions of consciousness, hallucinations, and other intrusion phenomena of sensation, affect, and thought. Normal electroencephalographic findings, including telemetry, differentiate non—epileptic seizures from the seizurelike symptoms of dissociative identity disorder. Also, individuals with dissociative identity disorder obtain very high dissociation scores, whereas individuals with complex partial seizures do not. Factitious disorder and malingering. Individuals who feign dissociative identity disor- der do not report the subtle symptoms of intrusion characteristic of the disorder; instead they tend to overreport well-publicized symptoms of the disorder, such as dissociative amnesia, while underreporting less-publicized comorbid symptoms, such as depression. Individuals who feign dissociative identity disorder tend to be relatively undisturbed by or may even seem to enjoy ”having” the disorder. In contrast, individuals with genuine dissociative identity disorder tend to be ashamed of and overwhelmed by their symptoms and to underreport their symptoms or deny their condition. Sequential observation, cor- roborating history, and intensive psychometric and psychological assessment may be helpful in assessment. Individuals who malinger dissociative identity disorder usually create limited, stereo- typed alternate identities, with feigned amnesia, related to the events for which gain is sought. For example, they may present an ”all-good” identity and an "all-bad” identity in hopes of gaining exculpation for a crime. Many individuals with dissociative identity disorder present with a comorbid disorder. If not assessed and treated specifically for the dissociative disorder, these individuals often receive prolonged treatment for the comorbid diagnosis only, with limited overall treat- ment response and resultant demoralization, and disability. Individuals with dissociative identity disorder usually exhibit a large number of co- morbid disorders. In particular, most develop PTSD. Other disorders that are highly co- morbid with dissociative identity disorder include depressive disorders, trauma- and stressor-related disorders, personality disorders (especially avoidant and borderline per- sonality disorders), conversion disorder (functional neurological symptom disorder), somatic symptom disorder, eating disorders, substance-related disorders, obsessive- compulsive disorder, and sleep disorders. Dissociative alterations in identity, memory, and consciousness may affect the symptom presentation of comorbid disorders. Diagnostic Criteria 300.12 (F44.0)A. An inability to recall important autobiographical information, usually of a traumatic or stressful nature, that is inconsistent with ordinary forgetting. Note: Dissociative amnesia most often consists of localized or selective amnesia tor a specific event or events; or generalized amnesia for identity and life history. B. The symptoms cause clinically significant distress or impairment in social, occupa— tional, or other important areas of functioning. C. The disturbance is not attributable to the physiological effects of a substance (e.g., al- cohol or other drug of abuse, a medication) or a neurological or other medical condition (e.g., partial complex seizures, transient global amnesia, sequelae of a closed head in- jury/traumatic brain injury, other neurological condition). D. The disturbance is not better explained by dissociative identity disorder, posttraumatic stress disorder, acute stress disorder, somatic symptom disorder, or major or mild neu- rocognitive disorder. Coding note: The code for dissociative amnesia without dissociative fugue is 300.12 (F44.0). The code for dissociative amnesia with dissociative fugue is 300.13 (F44.1). Specify it: 300.13 (F44.1) With dissociative fugue: Apparently purposeful travel or bewildered wandering that is associated with amnesia for identity or for other important autobio- graphical information. The defining characteristic of dissociative amnesia is an inability to recall important auto- ily would be readily remembered (Criterion A). Dissociative amnesia differs from the permanent amnesias due to neurobiological damage or toxicity that prevent memory stor- age or retrieval in that it is always potentially reversible because the memory has been suc- cessfully stored. Localized amnesia, a failure to recall events during a circumscribed period of time, is the most common form of dissociative amnesia. Localized amnesia may be broader than am- nesia for a single traumatic event (e.g., months or years associated with child abuse or in— tense combat). In selective amnesia, the individual can recall some, but not all, of the events during a circumscribed period of time. Thus, the individual may remember part of a trau- matic event but not other parts. Some individuals report both localized and selective am- nesias. Generalized amnesia, a complete loss of memory for one’s life history, is rare. Individuals with generalized amnesia may forget personal identity. Some lose previous knowledge about the world (i.e., semantic knowledge) and can no longer access well-learned skills (i.e., procedural knowledge). Generalized amnesia has an acute onset; the perplexity, dis- orientation, and purposeless wandering of individuals with generalized amnesia usually bring them to the attention of the police or psychiatric emergency services. Generalized amnesia may be more common among combat veterans, sexual assault victims, and indi- viduals experiencing extreme emotional stress or conflict. Individuals with dissociative amnesia are frequently unaware (or only partially aware) of their memory problems. Many, especially those with localized amnesia, minimize the importance of their memory loss and may become uncomfortable when prompted to ad- dress it. In systematized amnesia, the individual loses memory for a specific category of in- formation (e.g., all memories relating to one’s family, a particular person, or childhood sexual abuse). In continuous amnesia, an individual forgets each new event as it occurs. Many individuals with dissociative amnesia are chronically impaired in their ability to form and sustain satisfactory relationships. Histories of trauma, child abuse, and victim- ization are common. Some individuals with dissociative amnesia report dissociative flash- backs (i.e., behavioral reexperiencing of traumatic events). Many have a history of self- mutilation, suicide attempts, and other high-risk behaviors. Depressive and functional neurological symptoms are common, as are depersonalization, auto-hypnotic symptoms, and high hypnotizability. Sexual dysfunctions are common. Mild traumatic brain injury may precede dissociative amnesia. The 12-month prevalence for dissociative amnesia among adults in a small U.S. commu- nity study was 1.8% (1.0% for males; 2.6% for females). Onset of generalized amnesia is usually sudden. Less is known about the onset of localized and selective amnesias because these amnesias are seldom evident, even to the individual. Although overwhelming or intolerable events typically precede localized amnesia, its on- set may be delayed for hours, days, or longer. Individuals may report multiple episodes of dissociative amnesia. A single episode may predispose to future episodes. In between episodes of amnesia, the individual may or may not appear to be acutely symptomatic. The duration of the forgotten events can range from minutes to decades. Some episodes of dissociative amnesia resolve rapidly (e.g., when the person is removed from combat or some other stressful situation), whereas other episodes persist for long periods of time. Some individuals may gradually recall the dis- sociated memories years later. Dissociative capacities may decline with age, but not al- ways. As the amnesia remits, there may be considerable distress, suicidal behavior, and symptoms of posttraumatic stress disorder (PTSD). Dissociative amnesia has been observed in young children, adolescents, and adults. Children may be the most difficult to evaluate because they often have difficulty under- standing questions about amnesia, and interviewers may find it difficult to formulate child- friendly questions about memory and amnesia. Observations of apparent dissociative am- nesia are often difficult to differentiate from inattention, absorption, anxiety, oppositional behavior, and learning disorders. Reports from several different sources (e.g., teacher, therapist, case worker) may be needed to diagnose amnesia in children. Environmental. Single or repeated traumatic experiences (e.g., war, childhood maltreat- ment, natural disaster, internment in concentration camps, genocide) are common ante- cedents. Dissociative amnesia is more likely to occur with 1) a greater number of adverse childhood experiences, particularly physical and/ or sexual abuse, 2) interpersonal vio- lence; and 3) increased severity, frequency, and violence of the trauma. Genetic and physiological. There are no genetic studies of dissociative amnesia. Stud- ies of dissociation report significant genetic and environmental factors in both clinical and nonclinical samples. Course modifiers. Removal from the traumatic circumstances underlying the dissociative amnesia (e.g., combat) may bring about a rapid return of memory. The memory loss of indi- viduals with dissociative fugue may be particularly refractory. Onset of PTSD symptoms may decrease localized, selective, or systematized amnesia. The returning memory, however, may be experienced as flashbacks that alternate with amnesia for the content of the flashbacks. In Asia, the Middle East, and Latin America, non-epileptic seizures and other functional neurological symptoms may accompany dissociative amnesia. In cultures with highly re- strictive social traditions, the precipitants of dissociative amnesia often do not involve frank trauma. Instead, the amnesia is preceded by severe psychological stresses or con- flicts (e.g., marital conflict, other family disturbances, attachment problems, conflicts due to restriction or oppression). Suicidal and other self-destructive behaviors are common in individuals with dissociative amnesia. Suicidal behavior may be a particular risk when the amnesia remits suddenly and overwhelms the individual with intolerable memories. Functional Consequences of Dissociative AmnesiaThe impairment of individuals with localized, selective, or systematized dissociative am- nesia ranges from limited to severe. Individuals with chronic generalized dissociative am- nesia usually have impairment in all aspects of functioning. Even when these individuals "re-learn" aspects of their life history, autobiographical memory remains very impaired. Most become vocationally and interpersonally disabled.Dissociative identity disorder. Individuals with dissociative amnesia may report de- personalization and auto-hypnotic symptoms. Individuals with dissociative identity dis- order report pervasive discontinuities in sense of self and agency, accompanied by many other dissociative symptoms. The amnesias of individuals with localized, selective, and/ or systematized dissociative amnesias are relatively stable. Amnesias in dissociative iden- tity disorder include amnesia for everyday events, finding of unexplained possessions, sudden fluctuations in skills and knowledge, major gaps in recall of life history, and brief amnesic gaps in interpersonal interactions. Posttraumatic stress disorder. Some individuals with PTSD cannot recall part or all of a specific traumatic event (e.g., a rape Victim with depersonalization and/ or derealization symptoms who cannot recall most events for the entire day of the rape). When that amne- sia extends beyond the immediate time of the trauma, a comorbid diagnosis of dissociative amnesia is warranted. Neurocognitive disorders. In neurocognitive disorders, memory loss for personal infor- mation is usually embedded in cognitive, linguistic, affective, attentional, and behavioral disturbances. In dissociative amnesia, memory deficits are primarily for autobiographical information; intellectual and cognitive abilities are preserved. Substance-related disorders. In the context of repeated intoxication with alcohol or other substances/medications, there may be episodes of ”black outs” or periods for which the individual has no memory. To aid in distinguishing these episodes from dissociative am- nesia, a longitudinal history noting that the amnestic episodes occur only in the context of intoxication and do not occur in other situations would help identify the source as sub- stance-induced; however the distinction may be difficult when the individual with dis- sociative amnesia may also misuse alcohol or other substances in the context of stressful situations that may also exacerbate dissociative symptoms. Some individuals with comor- lems solely to the substance use. Prolonged use of alcohol or other substances may result in a substance-induced neurocognitive disorder that may be associated with impaired cog- nitive function, but in this context the protracted history of substance use and the persis- tent deficits associated with the neurocognitive disorder would serve to distinguish it from dissociative amnesia, where there is typically no evidence of persistent impairment in intellectual functioning. Posttraumatic amnesia due to brain injury. Amnesia may occur in the context of a trau- matic brain injury (TBI) when there has been an impact to the head or other mechanisms of rapid movement or displacement of the brain within the skull TBI. Other characteristics of TBI include loss of consciousness, disorientation and confusion, or, in more severe cases, neurological signs (e.g., abnormalities on neuroimaging, a new onset of seizures or a marked worsening of a preexisting seizure disorder, visual field cuts, anosmia). A neurocognitive disorder attributable to TBI must present either immediately after brain injury occurs or im- mediately after the individual recovers consciousness after the injury, and persist past the acute post-injury period. The cognitive presentation of a neurocognitive disorder following TBI is variable and includes difficulties in the domains of complex attention, executive func- tion, learning and memory as well as slowed speed of information processing and distur- bances in social cognition. These additional features help distinguish it from dissociative amnes1a. Seizure disorders. Individuals with seizure disorders may exhibit complex behavior dur- ing seizures or post—ictally with subsequent amnesia. Some individuals with a seizure disorder engage in nonpurposive wandering that is limited to the period of seizure activity. Con- versely, behavior during a dissociative fugue is usually purposeful, complex, and goal- directed and may last for days, weeks, or longer. Occasionally, individuals with a seizure dis- order will report that earlier autobiographical memories have been ”wiped out” as the seizure disorder progresses. Such memory loss is not associated with traumatic circumstances and ap— pears to occur randomly. Serial electroencephalogram usually show abnormalities. Telemet- ric electroencephalographic monitoring usually shows an association between the episodes of amnesia and seizure activity. Dissociative and epileptic amnesias may coexist. Catatonic stupor. Mutism in catatonic stupor may suggest dissociative amnesia, but fail- ure of recall is absent. Other catatonic symptoms (e.g., rigidity, posturing, negativism) are usually present. Factitious disorder and malingering. There is no test, battery of tests, or set of procedures that invariably distinguishes dissociative amnesia from feigned amnesia. Individuals with factitious disorder or malingering have been noted to continue their deception even during hypnotic or barbiturate-facilitated interviews. Feigned amnesia is more common in individ- uals with 1) acute, florid dissociative amnesia; 2) financial, sexual, or legal problems; or 3) a wish to escape stressful circumstances. True amnesia can be associated with those same cir- cumstances. Many individuals who malinger confess spontaneously or when confronted. Normal and age-related changes in memory. Memory decrements in major and mild neurocognitive disorders differ from those of dissociative amnesia, which are usually as— sociated with stressful events and are more specific, extensive, and / or complex. As dissociative amnesia begins to remit, a wide variety of affective phenomena may sur- face: dysphoria, grief, rage, shame, guilt, psychological conflict and turmoil, and suicidal and homicidal ideation, impulses, and acts. These individuals may have symptoms that der, with depressed mood; or adjustment disorder, with mixed disturbance of emotions and conduct. Many individuals with dissociative amnesia develop PTSD at some point during their life, especially when the traumatic antecedents of their amnesia are brought into conscious awareness. Many individuals with dissociative amnesia have symptoms that meet diagnostic cri- teria for a comorbid somatic symptom or related disorder (and Vice versa), including so- disorder). Many individuals with dissociative amnesia have symptoms that meet diagnos- tic criteria for a personality disorder, especially dependent, avoidant, and borderline. Diagnostic Criteria 300.6 (F48.1)A. The presence of persistent or recurrent experiences of depersonalization, derealiza- tion, or both: 1. Depersonalization: Experiences of unreality, detachment, or being an outside ob- server with respect to one's thoughts. teelings, sensations, body, or actions (e.g., perceptual alterations, distorted sense of time, unreal or absent self, emotional and/ or physical numbing). 2. Derealization: Experiences of unreality or detachment with respect to surround- ings (e.g., individuals or objects are experienced as unreal, dreamlike, foggy, life- less, or visually distorted). B. During the depersonalization or derealization experiences, reality testing remains intact. C. The symptoms cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. D. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, medication) or another medical condition (e.g., seizures). E. The disturbance is not better explained by another mental disorder, such as schizo- phrenia, panic disorder, major depressive disorder. acute stress disorder, posttrau- matic stress disorder, or another dissociative disorder. The essential features of depersonalization/derealization disorder are persistent or recur- rent episodes of depersonalization, derealization, or both. Episodes of depersonalization are characterized by a feeling of unreality or detachment from, or unfamiliarity with, one’s whole self or from aspects of the self (Criterion A1). The individual may feel detached from his or her entire being (e.g., ”I am no one,” ”I have no self”). He or she may also feel subjectively detached from aspects of the self, including feelings (e.g., hypoemotionality: ”I know I have feelings but I don’t feel them"), thoughts (e.g., ”My thoughts don’t feel like my own,” ”head\filled with cotton”), whole body or body parts, or sensations (e.g., touch, proprioception, hunger, thirst, libido). There may also be a diminished sense of agency (e.g., feeling robotic, like an automaton; lacking control of one’s speech or movements). The depersonalization experience can sometimes be one of a split self, with one part ob- serving and one participating, known as an ”out-of—body experience" in its most extreme form. The unitary symptom of ”depersonalization” consists of several symptom factors: anomalous body experiences (i.e., unreality of the self and perceptual alterations); emo- tional or physical numbing; and temporal distortions with anomalous subjective recall. Episodes of derealization are characterized by a feeling of unreality or detachment from, or unfamiliarity with, the world, be it individuals, inanimate objects, or all surround- ings (Criterion A2). The individual may feel as if he or she were in a fog, dream, or bubble, or as if there were a veil or a glass wall between the individual and world around. Surround- ings may be experienced as artificial, colorless, or lifeless. Derealization is commonly ac- companied by subjective visual distortions, such as blurriness, heightened acuity, widened or narrowed visual field, two-dimensionality or flatness, exaggerated three-dimensional- ity, or altered distance or size of objects (i.e., macropsia or rnicropsia). Auditory distortions can also occur, whereby voices or sounds are muted or heightened. In addition, Criterion C requires the presence of clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning, and Criteria D and E describe exclusionary diagnoses. Individuals with depersonalization/derealization disorder may have difficulty describ- ing their symptoms and may think they are ”crazy” or “going crazy”. Another common experience is the fear of irreversible brain damage. A commonly associated symptom is a subjectively altered sense of time (i.e., too fast or too slow), as well as a subjective difficulty in vividly recalling past memories and owning them as personal and emotional. Vague so— matic symptoms, such as head fullness, tingling, or lightheadedness, are not uncommon. Individuals may suffer extreme rumination or obsessional preoccupation (e.g., constantly obsessing about whether they really exist, or checking their perceptions to determine whether they appear real). Varying degrees of anxiety and depression are also common as- sociated features. Individuals with the disorder have been found to have physiological hyporeactivity to emotional stimuli. Neural substrates of interest include the hypotha- lamic-pituitary-adrenocortical axis, inferior parietal lobule, and prefrontal cortical-lirnbic circuits. Transient depersonalization/ derealization symptoms lasting hours to days are common in the general population. The 12-month prevalence of depersonalization/derealization disorder is thought to be markedly less than for transient symptoms, although precise es- timates for the disorder are unavailable. In general, approximately one-half of all adults have experienced at least one lifetime episode of depersonalization/ derealization. How- ever, symptomatology that meets full criteria for depersonalization/derealization disor- der is markedly less common than transient symptoms. Lifetime prevalence in US. and non-U.S. countries is approximately 2% (range of 0.8% to 2.8%). The gender ratio for the disorder is 1:1. The mean age at onset of depersonalization/ derealization disorder is 16 years, although the the symptoms. Less than 20% of individuals experience onset after age 20 years and only 5% after age 25 years. Onset in the fourth decade of life or later is highly unusual. Onset can range from extremely sudden to gradual. Duration of depersonalization/derealization disorder episodes can vary greatly, from brief (hours or days) to prolonged (weeks, months, or years). Given the rarity of disorder onset after age 40 years, in such cases the in- dividual should be examined more closely for underlying medical conditions (e.g., brain lesions, seizure disorders, sleep apnea). The course of the disorder is often persistent. About one-third of cases involve discrete episodes; another third, continuous symptoms from the start; and still another third, an initially episodic course that eventually becomes continuous. While in some individuals the intensity of symptoms can wax and wane considerably, others report an unwavering level of intensity that in extreme cases can be constantly pres- ent for years or decades. Internal and external factors that affect symptom intensity vary between individuals, yet some typical patterns are reported. Exacerbations can be trig- gered by stress, worsening mood or anxiety symptoms, novel or overstimulating settings, and physical factors such as lighting or lack of sleep. Temperamental. Individuals with depersonalization/derealization disorder are charac- terized by harm—avoidant temperament, immature defenses, and both disconnection and overconnection schemata. Immature defenses such as idealization/devaluation, projec- tion and acting out result in denial of reality and poor adaptation. Cognitive disconnection schemata reflect defectiveness and emotional inhibition and subsume themes of abuse, ne- glect, and deprivation. Overconnection schemata involve impaired autonomy with themes of dependency, vulnerability, and incompetence. Environmental. There is a clear association between the disorder and childhood interper- sonal traumas in a substantial portion of individuals, although this association is not as prev- alent or as extreme in the nature of the traumas as in other dissociative disorders, such as dissociative identity disorder. In particular, emotional abuse and emotional neglect have been most strongly and consistently associated with the disorder. Other stressors can include phys- ical abuse; witnessing domestic violence; growing up with a seriously impaired, mentally ill parent; or unexpected death or suicide of a family member or close friend. Sexual abuse is a much less common antecedent but can be encountered. The most common proximal precipi- tants of the disorder are severe stress (interpersonal, financial, occupational), depression, anx- iety (particularly panic attacks), and illicit drug use. Symptoms may be specifically induced by substances such as tetrahydrocannabinol, hallucinogens, ketamine, MDMA (3,4-methylene— dioxymethamphetamine; ”ecstasy”) and salvia. Marijuana use may precipitate new-onset panic attacks and depersonalization/derealization symptoms simultaneously. Volitionally induced experiences of depersonalization/ derealization can be a part of med- itative practices that are prevalent in many religions and cultures and should not be diag- nosed as a disorder. However, there are individuals who initially induce these states related practices. Symptoms of depersonalization/ derealization disorder are highly distressing and are as- sociated with major morbidity. The affectively flattened and robotic demeanor that these individuals often demonstrate may appear incongruent with the extreme emotional pain reported by those with the disorder. Impairment is often experienced in both interpersonal and occupational spheres, largely due to the hypoemotionality with others, subjective diffi- culty in focusing and retaining information, and a general sense of disconnectedness from life. Illness anxiety disorder. Although individuals with depersonalization/derealization dis- order can present with vague somatic complaints as well as fears of permanent brain dam- age, the diagnosis of depersonalization/derealization disorder is characterized by the presence of a constellation of typical depersonalization/derealization symptoms and the ab- sence of other manifestations of illness anxiety disorder. Major depressive disorder. Feelings of numbness, deadness, apathy, and being in a dream are not uncommon in major depressive episodes. However, in depersonalization/ derealization disorder, such symptoms are associated with further symptoms of the dis- order. If the depersonalization/ derealization clearly precedes the onset of a major depres- sive episode or clearly continues after its resolution, the diagnosis of depersonalization/ derealization disorder applies. Obsessive-compulsive disorder. Some individuals with depersonalization/ dereal- ization disorder can become obsessively preoccupied with their subjective experience or develop rituals checking on the status of their symptoms. However, other symptoms of obsessive-compulsive disorder unrelated to depersonalization/derealization are not present. Other dissociative disorders. In order to diagnose depersonalization/ derealization disorder, the symptoms should not occur in the context of another dissociative disorder, such as dissociative identity disorder. Differentiation from dissociative amnesia and con- version disorder (functional neurological symptom disorder) is simpler, as the symptoms of these disorders do not overlap with those of depersonalization/ derealization disorder. Anxiety disorders. Depersonalization/derealization is one of the symptoms of panic at- tacks, increasingly common as panic attack severity increases. Therefore, depersonal— ization/derealization disorder should not be diagnosed when the symptoms occur only during panic attacks that are part of panic disorder, social anxiety disorder, or specific phobia. In addition, it is not uncommon for depersonalization/derealization symptoms to first begin in the context of new-onset panic attacks or as panic disorder progresses and worsens. In such presentations, the diagnosis of depersonalization/ derealization disorder can be made if 1) the depersonalization/ derealization component of the presentation is very prominent from the start, clearly exceeding in duration and intensity the occurrence of actual panic attacks; or 2) the depersonalization/ derealization continues after panic dis- order has remitted or has been successfully treated. Psychotic disorders. The presence of intact reality testing specifically regarding the depersonalization/derealization symptoms is essential to differentiating depersonal- ization/derealization disorder from psychotic disorders. Rarely, positive-symptom schizophrenia can pose a diagnostic challenge when nihilistic delusions are present. For example, an individual may complain that he or she is dead or the world is not real; this could be either a subjective experience that the individual knows is not true or a delusional conviction. Substance/medication-induced disorders. Depersonalization/derealization associated with the physiological effects of substances during acute intoxication or withdrawal is not diagnosed as depersonalization/derealization disorder. The most common precipitating substances are the illicit drugs marijuana, hallucinogens, ketamine, ecstasy, and salvia. In about 15% of all cases of depersonalization/derealization disorder, the symptoms are pre- cipitated by ingestion of such substances. If the symptoms persist for some time in the ab- sence of any further substance or medication use, the diagnosis of depersonalization/ derealization disorder applies. This diagnosis is usually easy to establish since the vast ma- jority of individuals with this presentation become highly phobic and aversive to the trig- gering substance and do not use it again. Mental disorders due to another medical condition. Features such as onset after age 40 years or the presence of atypical symptoms and course in any individual suggest the possibility of an underlying medical condition. In such cases, it is essential to conduct a thorough medical and neurological evaluation, which may include standard laboratory studies, Viral titers, an electroencephalogram, vestibular testing, visual testing, sleep stud- ies, and/ or brain imaging. When the suspicion of an underlying seizure disorder proves difficult to confirm, an ambulatory electroencephalogram may be indicated; although temporal lobe epilepsy is most commonly implicated, parietal and frontal lobe epilepsy may also be associated. In a convenience sample of adults recruited for a number of depersonalization research studies, lifetime comorbidities were high for unipolar depressive disorder and for any anxiety disorder, with a significant proportion of the sample having both disorders. Comor- bidity with posttraumatic stress disorder was low. The three most commonly co-occurring personality disorders were avoidant, borderline, and obsessive-compulsive. 300.15 (F44.89)This category applies to presentations in which symptoms characteristic of a dissociative disorder that cause clinically significant distress or impairment in social. occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the dissociative disorders diagnostic class. The other specified dissocia- tive disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific disso- ciative disorder. This is done by recording “other specified dissociative disorder” followed by the specific reason (e.g., “dissociative trance"). Examples of presentations that can be specified using the “other specified" designation include the following: 1. Chronic and recurrent syndromes of mixed dissociative symptoms: This cate- gory includes identity disturbance associated with less-than-marked discontinuities in sense of self and agency, or alterations of identity or episodes of possession in an in- dividual who reports no dissociative amnesia. 2. Identity disturbance due to proionged and intense coerclve persuasion: Individ- uals who have been subjected to intense coercive persuasion (e.g., brainwashing, thought reform, indoctrination while captive, torture, long-term political imprisonment, recruitment by sects/cults or by terror organizations) may present with prolonged changes in. or conscious questioning of, their identity. 3. Acute dissociative reactions to stressfui events: This category is for acute, tran- sient conditions that typically last less than 1 month, and sometimes only a few hours or days. These conditions are characterized by constriction of consciousness; deper- sonalization; derealization; perceptual disturbances (e.g., time slowing. macropsia); micro-amnesias; transient stupor; and/or alterations in sensory-motor functioning (e.g., analgesia, paralysis). 4. Dissociative trance: This condition is characterized by an acute narrowing or com— plete loss of awareness of immediate surroundings that manifests as profound unre- sponsiveness or insensitivity to environmental stimuli. The unresponsiveness may be accompanied by minor stereotyped behaviors (e.g., finger movements) of which the in- dividual is unaware and/or that he or she cannot control, as well as transient paralysis or loss of consciousness. The dissociative trance is not a normal part of a broadly ac- cepted collective cultural or religious practice. 300.15 (F44.9)This category applies to presentations in which symptoms characteristic of a dissociative disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any 01 the disorders in the dissociative disorders diagnostic class. The unspecified dissociative disorder category is used in situations in which the clinician chooses not to specify the rea- son that the criteria are not met for a specific dissociative disorder, and includes presen- tations for which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). Somatic, T‘_Somatic sym ptom d isorder and other disorders with prominent somatic symp- toms constitute a new category in DSM-S called somatic symptom and related disorders. This chapter includes the diagnoses of somatic symptom disorder, illness anxiety disorder, con- version disorder (functional neurological symptom disorder), psychological factors affect- ing other medical conditions, factitious disorder, other specified somatic symptom and related disorder, and unspecified somatic symptom and related disorder. All of the disor- ders in this chapter share a common feature: the prominence of somatic symptoms associ— ated with significant distress and impairment. Individuals with disorders with prominent somatic symptoms are commonly encountered in primary care and other medical settings but are less commonly encountered in psychiatric and other mental health settings. These reconceptualized diagnoses, based on a reorganization of DSM-IV somatoform disorder di- agnoses, are more useful for primary care and other medical (nonpsychiatric) clinicians. The major diagnosis in this diagnostic class, somatic symptom disorder, emphasizes diagnosis made on the basis of positive symptoms and signs (distressing somatic symp- toms plus abnormal thoughts, feelings, and behaviors in response to these symptoms) rather than the absence of a medical explanation for somatic symptoms. A distinctive char- acteristic of many individuals with somatic symptom disorder is not the somatic symp- toms per se, but instead the way they present and interpret them. Incorporating affective, cognitive, and behavioral components into the criteria for somatic symptom disorder pro— Vides a more comprehensive and accurate reflection of the true clinical picture than can be achieved by assessing the somatic complaints alone. The principles behind the changes in the somatic symptom and related diagnoses from DSM-IV are crucial in understanding the DSM-S diagnoses. The DSM-IV term somatoform disorders was confusing and is replaced by somatic symptom and related disorders. In DSM-IV there was a great deal of overlap across the somatoform disorders and a lack of clarity about the boundaries of diagnoses. Although individuals with these disorders primarily present in medical rather than mental health settings, nonpsychiatric physicians found the DSM-IV somatoform diagnoses difficult to understand and use. The current DSM-S clas- sification recognizes this overlap by reducing the total number of disorders as well as their subcategories. The previous criteria overemphasized the centrality of medically unexplained symptoms. Such symptoms are present to various degrees, particularly in conversion disorder, but so- matic symptom disorders can also accompany diagnosed medical disorders. The reli- ability of determining that a somatic symptom is medically unexplained is limited, and grounding a diagnosis on the absence of an explanation is problematic and reinforces mind-body dualism. It is not appropriate to give an individual a mental disorder diagnosis solely because a medical cause cannot be demonstrated. Furthermore, the presence of a medical diagnosis does not exclude the possibility of a comorbid mental disorder, includ- ing a somatic symptom and related disorder. Perhaps because of the predominant focus on lack of medical explanation, individuals regarded these diagnoses as pejorative and de- meaning, implying that their physical symptoms were not ”real." The new classification defines the major diagnosis, somatic symptom disorder, on the basis of positive symptoms (distressing somatic symptoms plus abnormal thoughts, feelings, and behaviors in response to these symptoms). However, medically unexplained symptoms remain a key feature in order) because it is possible to demonstrate definitively in such disorders that the symp- toms are not consistent with medical pathophysiology. It is important to note that some other mental disorders may initially manifest with pri- marily somatic symptoms (e.g., major depressive disorder, panic disorder). Such diagno- ses may account for the somatic symptoms, or they may occur alongside one of the somatic symptom and related disorders in this chapter. There is also considerable medical comor- bidity among somatizing individuals. Although somatic symptoms are frequently associ— ated with psychological distress and psychopathology, some somatic symptom and related disorders can arise spontaneously, and their causes can remain obscure. Anxiety ders. The somatic component adds severity and complexity to depressive and anxiety dis- orders and results in higher severity, functional impairment, and even refractoriness to traditional treatments. In rare instances, the degree of preoccupation may be so severe as to warrant consideration of a delusional disorder diagnosis. A number of factors may contribute to somatic symptom and related disorders. These include genetic and biological vulnerability (e.g., increased sensitivity to pain), early trau- matic experiences (e.g., violence, abuse, deprivation), and learning (e.g., attention ob- tained from illness, lack of reinforcement of nonsomatic expressions of distress), as well as cultural/social norms that devalue and stigmatize psychological suffering as compared with physical suffering. Differences in medical care across cultures affect the presentation, recognition, and management of these somatic presentations. Variations in symptom pre- sentation are likely the result of the interaction of multiple factors within cultural con- texts that affect how individuals identify and classify bodily sensations, perceive illness, and seek medical attention for them. Thus, somatic presentations can be viewed as expres- sions of personal suffering inserted in a cultural and social context. All of these disorders are characterized by the prominent focus on somatic concerns and their initial presentation mainly in medical rather than mental health care settings. 50- matic symptom disorder offers a more clinically useful method of characterizing individ- uals who may have been considered in the past for a diagnosis of somatization disorder. Furthermore, approximately 75% of individuals previously diagnosed with hypochon- driasis are subsumed under the diagnosis of somatic symptom disorder. However, about 25% of individuals with hypochondriasis have high health anxiety in the absence of so- matic symptoms, and many such individuals’ symptoms would not qualify for an anxiety disorder diagnosis. The DSM-5 diagnosis of ilhiess anxiety disorder is for this latter group of individuals. Illness anxiety disorder can be considered either in this diagnostic section or as an anxiety disorder. Because of the strong focus on somatic concerns, and because ill- ness anxiety disorder is most often encountered in medical settings, for utility it is listed with the somatic symptom and related disorders. In conversion disorder, the essential fea— ture is neurological symptoms that are found, after appropriate neurological assessment, to be incompatible with neurological pathophysiology. Psychological factors affecting other medical conditions is also included in this chapter. Its essential feature is the pres- ence of one or more clinically significant psychological or behavioral factors that adversely affect a medical condition by increasing the risk for suffering, death, or disability. Like the other somatic symptom and related disorders, factitious disorder embodies persistent problems related to illness perception and identity. In the great majority of reported cases of factitious disorder, both imposed on self and imposed on another, individuals present with somatic symptoms and medical disease conviction. Consequently, DSM-5 factitious disorder is included among the somatic symptom and related disorders. Other specified order include conditions for which some, but not all, of the criteria for somatic symptom disorder or illness anxiety disorder are met, as well as pseudocyesis. . Somatic Symptom DisorderDiagnostic Criteria 300.82 (F45.1)A. One or more somatic symptoms that are distressing or result in significant disruption of daily life. B. Excessive thoughts. feelings. or behaviors related to the somatic symptoms or associ- ated health concerns as manifested by at least one of the following: 1. Disproportionate and persistent thoughts about the seriousness of one’s symptoms. 2. Persistently high level of anxiety about health or symptoms. 3. Excessive time and energy devoted to these symptoms or health concerns. C. Although any one somatic symptom may not be continuously present. the state of be- ing symptomatic is persistent (typically more than 6 months). Specify it:With predominant pain (previously pain disorder): This specifier is for individuals whose somatic symptoms predominantly involve pain. Specify if:Persistent: A persistent course is characterized by severe symptoms, marked impair- ment, and long duration (more than 6 months). Specify current severity:Mild: Only one of the symptoms specified in Criterion B is fulfilled. Moderate: Two or more of the symptoms specified in Criterion B are fulfilled. Severe: Two or more of the symptoms specified in Criterion B are fulfilled, plus there are multiple somatic complaints (or one very severe somatic symptom). Individuals with somatic symptom disorder typically have multiple, current, somatic symp- toms that are distressing or result in significant disruption of daily life (Criterion A), al- though sometimes only one severe symptom, most commonly pain, is present. Symptoms may be specific (e.g., localized pain) or relatively nonspecific (e.g., fatigue). The symptoms nify serious disease. Somatic symptoms without an evident medical explanation are not sufficient to make this diagnosis. The individual’s suffering is authentic, whether or not it is medically explained. The symptoms may or may not be associated with another medical condition. The di- agnoses of somatic symptom disorder and a concurrent medical illness are not mutually exclusive, and these frequently occur together. For example, an individual may become se- riously disabled by symptoms of somatic symptom disorder after an uncomplicated myo- cardial infarction even if the myocardial infarction itself did not result in any disability. If another medical condition or high risk for developing one is present (e.g., strong family history), the thoughts, feelings, and behaviors associated with this condition are excessive (Criterion B). Individuals with somatic symptom disorder tend to have very high levels of worry about illness (Criterion B). They appraise their bodily symptoms as unduly threatening, harmful, or troublesome and often think the worst about their health. Even when there is evidence to the contrary, some patients still fear the medical seriousness of their symp- toms. In severe somatic symptom disorder, health concerns may assume a central role in the individual’s life, becoming a feature of his or her identity and dominating interper- sonal relationships. Individuals typically experience distress that is principally focused on somatic symp- toms and their significance. When asked directly about their distress, some individuals de- scribe it in relation to other aspects of their lives, while others deny any source of distress other than the somatic symptoms. Health—related quality of life is often impaired, both physically and mentally. In severe somatic symptom disorder, the impairment is marked, and when persistent, the disorder can lead to invalidism. There is often a high level of medical care utilization, which rarely alleviates the individ- ual’s concerns. Consequently, the patient may seek care from multiple doctors for the same symptoms. These individuals often seem unresponsive to medical interventions, and new interventions may only exacerbate the presenting symptoms. Some individuals with the dis- order seem unusually sensitive to medication side effects. Some feel that their medical as- sessment and treatment have been inadequate. Cognitive features include attention focused on somatic symptoms, attribution of normal bodily sensations to physical illness (possibly with catastrophic interpretations), worry about illness, and fear that any physical activity may damage the body. The relevant as- sociated behavioral features may include repeated bodily checking for abnormalities, re— peated seeking of medical help and reassurance, and avoidance of physical activity. These behavioral features are most pronounced in severe, persistent somatic symptom disorder. These features are usually associated with frequent requests for medical help for different somatic symptoms. This may lead to medical consultations in which individuals are so fo- cused on their concerns about somatic symptom(s) that they cannot be redirected to other matters. Any reassurance by the doctor that the symptoms are not indicative of serious physical illness tends to be short-lived and/ or is experienced by the individuals as the doctor not taking their symptoms with due seriousness. As the focus on somatic symp- toms is a primary feature of the disorder, individuals with somatic symptom disorder typ- ically present to general medical health services rather than mental health services. The suggestion of referral to a mental health specialist may be met with surprise or even frank refusal by individuals with somatic symptom disorder. Since somatic symptom disorder is associated with depressive disorders, there is an in- creased suicide risk. It is not known whether somatic symptom disorder is associated with suicide risk independent of its association with depressive disorders. The prevalence of somatic symptom disorder is not known. However, the prevalence of somatic symptom disorder is expected to be higher than that of the more restrictive DSM- IV somatization disorder (<1%) but lower than that of undifferentiated somatoform dis- order (approximately 19%). The prevalence of somatic symptom disorder in the general adult population may be around 5%—7%. Females tend to report more somatic symptoms than do males, and the prevalence of somatic symptom disorder is consequently likely to be higher in females. In older individuals, somatic symptoms and concurrent medical illnesses are common, and a focus on Criterion B is crucial for making the diagnosis. Somatic symptom disorder may be underdiagnosed in older adults either because certain somatic symptoms (e.g., pain, fatigue) are considered part of normal aging or because illness worry is considered tions than do younger people. Concurrent depressive disorder is common in older people who present with numerous somatic symptoms. In children, the most common symptoms are recurrent abdominal pain, headache, fa- tigue, and nausea. A single prominent symptom is more common in children than in adults. While young children may have somatic complaints, they rarely worry about ”ill- ness” per se prior to adolescence. The parents’ response to the symptom is important, as this may determine the level of associated distress. It is the parent who may determine the interpretation of symptoms and the associated time off school and medical help seeking. Temperamental. The personality trait of negative affectivity (neuroticism) has been identi- fied as an independent correlate/ risk factor of a high number of somatic symptoms. Comorbid anxiety or depression is common and may exacerbate symptoms and impairment. Environmental. Somatic symptom disorder is more frequent in individuals with few years of education and low socioeconomic status, and in those who have recently experienced stressful life events. Course modifiers. Persistent somatic symptoms are associated with demographic fea- tures (female sex, older age, fewer years of education, lower socioeconomic status, un- employment), a reported history of sexual abuse or other childhood adversity, concurrent chronic physical illness or psychiatric disorder (depression, anxiety, persistent depressive disorder [dysthymia], panic), social stress, and reinforcing social factors such as illness benefits. Cognitive factors that affect clinical course include sensitization to pain, height- ened attention to bodily sensations, and attribution of bodily symptoms to a possible med- ical illness rather than recognizing them as a normal phenomenon or psychological stress. Somatic symptoms are prominent in various ”culture—bound syndromes.” High numbers of somatic symptoms are found in population-based and primary care studies around the world, with a similar pattern of the most commonly reported somatic symptoms, impair- ment, and treatment seeking. The relationship between number of somatic symptoms and illness worry is similar in different cultures, and marked illness worry is associated with impairment and greater treatment seeking across cultures. The relationship between nu- merous somatic symptoms and depression appears to be very similar around the world and between different cultures within one country. Despite these similarities, there are differences in somatic symptoms among cultures and ethnic groups. The description of somatic symptoms varies with linguistic and other local cultural factors. These somatic presentations have been described as ”idioms of dis- tress” because somatic symptoms may have special meanings and shape patient-clinician interactions in the particular cultural contexts. ”Burnout,” the sensation of heaviness or the complaints of ”gas”; too much heat in the body; or burning in the head are examples of symptoms that are common in some cultures or ethnic groups but rare in others. Explan- atory models also vary, and somatic symptoms may be attributed variously to particular family, work, or environmental stresses; general medical illness; the suppression of feel- ings of anger and resentment; or certain culture-specific phenomena, such as semen 1055. There may also be differences in medical treatment seeking among cultural groups, in ad- dition to differences due to variable access to medical care services. Seeking treatment for multiple somatic symptoms in general medical clinics is a worldwide phenomenon and occurs at similar rates among ethnic groups in the same country. Functional Consequences of Somatic Symptom DisorderThe disorder is associated with marked impairment of health status. Many individuals with severe somatic symptom disorder are likely to have impaired health status scores more than 2 standard deviations below population norms. If the somatic symptoms are consistent with another mental disorder (e.g., panic disorder), and the diagnostic criteria for that disorder are fulfilled, then that mental disorder should be considered as an alternative or additional diagnosis. A separate diagnosis of somatic symptom disorder is not made if the somatic symptoms and related thoughts, feelings, or behaviors occur only during major depressive episodes. If, as commonly occurs, the crite- ria for both somatic symptom disorder and another mental disorder diagnosis are ful- filled, then both should be coded, as both may require treatment. Other medical conditions. The presence of somatic symptoms of unclear etiology is not in itself sufficient to make the diagnosis of somatic symptom disorder. The symptoms of many individuals with disorders like irritable bowel syndrome or fibromyalgia would not satisfy the criterion necessary to diagnose somatic symptom disorder (Criterion B). Con- versely, the presence of somatic symptoms of an established medical disorder (e.g., diabe- tes or heart disease) does not exclude the diagnosis of somatic symptom disorder if the criteria are otherwise met. Panic disorder. In panic disorder, somatic symptoms and anxiety about health tend to occur in acute episodes, whereas in somatic symptom disorder, anxiety and somatic symp- toms are more persistent. Generalized anxiety disorder. Individuals with generalized anxiety disorder worry about multiple events, situations, or activities, only one of which may involve their health. The main focus is not usually somatic symptoms or fear of illness as it is in somatic symptom disorder. Depressive disorders. Depressive disorders are commonly accompanied by somatic symptoms. However, depressive disorders are differentiated from somatic symptom dis- order by the core depressive symptoms of low (dysphoric) mood and anhedonia. Illness anxiety disorder. If the individual has extensive worries about health but no or minimal somatic symptoms, it may be more appropriate to consider illness anxiety disorder. Conversion disorder (functional neurological symptom disorder). In conversion disor- der, the presenting symptom is loss of function (e.g., of a limb), whereas in somatic symp— tom disorder, the focus is on the distress that particular symptoms cause. The features listed under Criterion B of somatic symptom disorder may be helpful in differentiating the two disorders. Delusional disorder. In somatic symptom disorder, the individual’s beliefs that somatic symptoms might reflect serious underlying physical illness are not held with delusional intensity. Nonetheless, the individual’s beliefs concerning the somatic symptoms can be firmly held. In contrast, in delusional disorder, somatic subtype, the somatic symptom be- liefs and behavior are stronger than those found in somatic symptom disorder. Body dysmorphic disorder. In body dysmorphic disorder, the individual is excessively concerned about, and preoccupied by, a perceived defect in his or her physical features. In contrast, in somatic symptom disorder, the concern about somatic symptoms reflects fear of underlying illness, not of a defect in appearance. Obsessive—compulsive disorder. In somatic symptom disorder, the recurrent ideas about somatic symptoms or illness are less intrusive, and individuals with this disorder do not exhibit the associated repetitive behaviors aimed at reducing anxiety that occur in obses- sive—compulsive disorder. Somatic symptom disorder is associated with high rates of comorbidity with medical dis- orders as well as anxiety and depressive disorders. When a concurrent medical illness is present, the degree of impairment is more marked than would be expected from the phys- symptom disorder, the disorder should be diagnosed; however, in view of the frequent co- morbidity, especially with anxiety and depressive disorders, evidence for these concur- rent diagnoses should be sought. Diagnostic Criteria 300.7 (F45.21)A. Preoccupation with having or acquiring a serious illness.B. Somatic symptoms are not present or, if present, are only mild in intensity. If another medical condition is present or there is a high risk for developing a medical condition (e.g., strong family history is present), the preoccupation is clearly excessive or dispro- portionate. C. There is a high level of anxiety about health, and the individual is easily alarmed about personal health status. D. The individual performs excessive health-related behaviors (e.g., repeatedly checks his or her body for signs of illness) or exhibits maladaptive avoidance (e.g., avoids doc- tor appointments and hospitals). E. Illness preoccupation has been present for at least 6 months, but the specific illness that is feared may change over that period of time. F. The illness-related preoccupation is not better explained by another mental disorder, such as somatic symptom disorder, panic disorder, generalized anxiety disorder, body dysmor- phic disorder, obsessive-compulsive disorder, or delusional disorder, somatic type. Specify whether:Care-seeking type: Medical care, including physician visits or undergoing tests and procedures, is frequently used. Care—avoidant type: Medical care is rarely used.Most individuals with hypochondriasis are now classified as having somatic symptom disorder; however, in a minority of cases, the diagnosis of illness anxiety disorder applies instead. Illness anxiety disorder entails a preoccupation with having or acquiring a seri- ous, undiagnosed medical illness (Criterion A). Somatic symptoms are not present or, if present, are only mild in intensity (Criterion B). A thorough evaluation fails to identify a serious medical condition that accounts for the individual’s concerns. While the concern may be derived from a nonpathological physical sign or sensation, the individual’s dis- tress emanates not primarily from the physical complaint itself but rather from his or her anxiety about the meaning, significance, or cause of the complaint (i.e., the suspected med- ical diagnosis). If a physical sign or symptom is present, it is often a normal physiological sensation (e.g., orthostatic dizziness), a benign and self—limited dysfunction (e.g., transient tinnitus), or a bodily discomfort not generally considered indicative of disease (e.g., belch- ing). If a diagnosable medical condition is present, the individual’s anxiety and preoccu- pation are clearly excessive and disproportionate to the severity of the condition (Criterion B). Empirical evidence and existing literature pertain to previously defined DSM hypo- chondriasis, and it is unclear to what extent and how precisely they apply to the descrip- tion of this new diagnosis. The preoccupation with the idea that one is sick is accompanied by substantial anxiety about health and disease (Criterion C). Individuals with illness anxiety disorder are easily alarmed about illness, such as by hearing about someone else falling ill or reading a health- related news story. Their concerns about undiagnosed disease do not respond to appro— priate medical reassurance, negative diagnostic tests, or benign course. The physician’s at- tempts at reassurance and symptom palliation generally do not alleviate the individual’s concerns and may heighten them. Illness concerns assume a prominent place in the indi- vidual’s life, affecting daily activities, and may even result in invalidism. Illness becomes a central feature of the individual’s identity and self—image, a frequent topic of social dis- course, and a characteristic response to stressful life events. Individuals with the disorder often examine themselves repeatedly (e.g., examining one’s throat in the mirror) (Crite- rion D). They research their suspected disease excessively (e.g., on the Internet) and re- peatedly seek reassurance from family, friends, or physicians. This incessant worrying often becomes frustrating for others and may result in considerable strain within the family. In some cases, the anxiety leads to maladaptive avoidance of situations (e.g., visiting sick family members) or activities (e.g., exercise) that these individuals fear might jeopardize their health. Because they believe they are medically ill, individuals with illness anxiety disorder are encountered far more frequently in medical than in mental health settings. The majority of individuals with illness anxiety disorder have extensive yet unsatisfactory medical care, though some may be too anxious to seek medical attention. They generally have elevated rates of medical utilization but do not utilize mental health services more than the general population. They often consult multiple physicians for the same problem and obtain re- peatedly negative diagnostic test results. At times, medical attention leads to a paradoxical exacerbation of anxiety or to iatrogenic complications from diagnostic tests and proce- dures. Individuals with the disorder are generally dissatisfied with their medical care and find it unhelpful, often feeling they are not being taken seriously by physicians. At times, these concerns may be justified, since physicians sometimes are dismissive or respond with frustration or hostility. This response can occasionally result in a failure to diagnose a medical condition that is present. Prevalence estimates of illness anxiety disorder are based on estimates of the DSM-III and DSM-IV diagnosis hypochondriasis. The 1- to 2-year prevalence of health anxiety and/ or disease conviction in community surveys and population—based samples ranges from 1.3% to 10%. In ambulatory medical populations, the 6-month/1-year prevalence rates are be- tween 3% and 8%. The prevalence of the disorder is similar in males and females. The development and course of illness anxiety disorder are unclear. Illness anxiety disor- der is generally thought to be a chronic and relapsing condition with an age at onset in early and middle adulthood. In population-based samples, health-related anxiety in- creases with age, but the ages of individuals with high health anxiety in medical settings do not appear to differ from those of other patients in those settings. In older individuals, health—related anxiety often focuses on memory loss; the disorder is thought to be rare in children. Environmental. Illness anxiety disorder may sometimes be precipitated by a major life stress or a serious but ultimately benign threat to the individual's health. A history of child- hood abuse or of a serious childhood illness may predispose to development of the disor- der in adulthood. Course modifiers. Approximately one-third to one-half of individuals with illness anx- iety disorder have a transient form, which is associated with less psychiatric comorbidity, more medical comorbidity, and less severe illness anxiety disorder. The diagnosis should be made with caution in individuals whose ideas about disease are congruent with widely held, culturally sanctioned beliefs. Little is known about the phe- nomenology of the disorder across cultures, although the prevalence appears to be similar across different countries with diverse cultures. Functional Consequences of Illness Anxiety Disorder function and health-related quality of life. Health concerns often interfere with interper- sonal relationships, disrupt family life, and damage occupational performance. Other medical conditions. The first differential diagnostic consideration is an underly- ing medical condition, including neurological or endocrine conditions, occult malignan- cies, and other diseases that affect multiple body systems. The presence of a medical condition does not rule out the possibility of coexisting illness anxiety disorder. If a med- ical condition is present, the health-related anxiety and disease concerns are clearly dis- proportionate to its seriousness. Transient preoccupations related to a medical condition do not constitute illness anxiety disorder. Adjustment disorders. Health-related anxiety is a normal response to serious illness and is not a mental disorder. Such nonpathological health anxiety is clearly related to the medical condition and is typically time-limited. If the health anxiety is severe enough, an adjustment disorder may be diagnosed. However, only when the health anxiety is of suf- ficient duration, severity, and distress can illness anxiety disorder be diagnosed. Thus, the diagnosis requires the continuous persistence of disproportionate health—related anxiety for at least 6 months. Somatic symptom disorder. Somatic symptom disorder is diagnosed when significant somatic symptoms are present. In contrast, individuals with illness anxiety disorder have minimal somatic symptoms and are primarily concerned with the idea they are ill. Anxiety disorders. In generalized anxiety disorder, individuals worry about multiple events, situations, or activities, only one of which may involve health. In panic disorder, the individual may be concerned that the panic attacks reflect the presence of a medical ill- ness; however, although these individuals may have health anxiety, their anxiety is typi- cally very acute and episodic. In illness anxiety disorder, the health anxiety and fears are more persistent and enduring. Individuals with illness anxiety disorder may experience panic attacks that are triggered by their illness concerns. Obsessive-compulsive and related disorders. Individuals with illness anxiety disor- compulsive behaviors (e.g., seeking reassurance). However, in illness anxiety disorder, the preoccupations are usually focused on having a disease, whereas in obsessive-compulsive disorder (OCD), the thoughts are intrusive and are usually focused on fears of getting a disease in the future. Most individuals with 0CD have obsessions or compulsions involv- ing other concerns in addition to fears about contracting disease. In body dysmorphic dis- order, concerns are limited to the individual’s physical appearance, which is viewed as defective or flawed. Major depressive disorder. Some individuals with a major depressive episode rumi- nate about their health and worry excessively about illness. A separate diagnosis of illness anxiety disorder is not made if these concerns occur only during major depressive epi- sodes. However, if excessive illness worry persists after remission of an episode of major depressive disorder, the diagnosis of illness anxiety disorder should be considered. Psychotic disorders. Individuals with illness anxiety disorder are not delusional and can acknowledge the possibility that the feared disease is not present. Their ideas do not attain the rigidity and intensity seen in the somatic delusions occurring in psychotic dis- orders (e.g., schizophrenia; delusional disorder, somatic type; major depressive disorder, with psychotic features). True somatic delusions are generally more bizarre (e.g., that an organ is rotting or dead) than the concerns seen in illness anxiety disorder. The concerns seen in illness anxiety disorder, though not founded in reality, are plausible. Because ilhiess anxiety disorder is a new disorder, exact comorbidities are unknown. Hy- pochondriasis co—occurs with anxiety disorders (in particular, generalized anxiety disor- der, panic disorder, and OCD) and depressive disorders. Approximately two-thirds of individuals with illness anxiety disorder are likely to have at least one other comorbid ma- jor mental disorder. Individuals with illness anxiety disorder may have an elevated risk for somatic symptom disorder and personality disorders. A. One or more symptoms of altered voluntary motor or sensory function. B. Clinical findings provide evidence of incompatibility between the symptom and recog- nized neurological or medical conditions. C. The symptom or deficit is not better explained by another medical or mental disorder. D. The symptom or deticit causes clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning or warrants medical evaluation. Coding note: The |CD-9-CM code for conversion disorder is 300.11, which is assigned regardless of the symptom type. The |CD-10-CM code depends on the symptom type (see below). Specify symptom type: (F44.4) Wlth weakness or paralysis (F44.4) With abnormal movement (e.g., tremor, dystonic movement, myoclonus, gait (F44.4) With swallowing symptoms (F44.4) With speech symptom (e.g., dysphonia, slurred speech) (F44.5) With attacks or seizures (F44.6) With anesthesia or sensory loss (F44.6) With special sensory symptom (e.g., visual, olfactory, or hearing distur- (F44.7) With mixed symptoms Specify if:Acute episode: Symptoms present for less than 6 months.Persistent: Symptoms occurring for 6 months or more.Specify it:Many clinicians use the alternative names of "functional" (referring to abnormal central nervous system functioning) or ”psychogenic” (referring to an assumed etiology) to de- scribe the symptoms of conversion disorder (functional neurological symptom disor- der). In conversion disorder, there may be one or more symptoms of various types. Motor symptoms include weakness or paralysis; abnormal movements, such as tremor or dys- tonic movements; gait abnormalities; and abnormal limb posturing. Sensory symptoms include altered, reduced, or absent skin sensation, vision, or hearing. Episodes of abnor- mal generalized limb shaking with apparent impaired or loss of consciousness may resem- ble epileptic seizures (also called psychogenic or non-epileptic seizures). There may be episodes of unresponsiveness resembling syncope or coma. Other symptoms include re- duced or absent speech volume (dysphonia/aphonia), altered articulation (dysarthria), a sensation of a lump in the throat (globus), and diplopia. Although the diagnosis requires that the symptom is not explained by neurological disease, it should not be made simply because results from investigations are normal or because the symptom is ”bizarre.” There must be clinical findings that show clear evidence of incompatibility with neurological disease. Internal inconsistency at examination is one way to demonstrate incompatibility (i.e., demonstrating that physical signs elicited through one examination method are no longer positive when tested a different way). Ex- amples of such examination findings include ' Hoover’s sign, in which weakness of hip extension returns to normal strength with con— tralateral hip flexion against resistance. 0 Marked weakness of ankle plantar-flexion when tested on the bed in an individual who is able to walk on tiptoes; 0 Positive findings on the tremor entrainment test. On this test, a unilateral tremor may be identified as functional if the tremor changes when the individual is distracted away from it. This may be observed if the individual is asked to copy the examiner in making a rhythmical movement with their unaffected hand and this causes the functional tremor to change such that it copies or “entrains” to the rhythm of the unaffected hand or the functional tremor is suppressed, or no longer makes a simple rhythmical move- ment. 0 In attacks resembling epilepsy or syncope ("psychogenic” non-epileptic attacks), the occurrence of closed eyes with resistance to opening or a normal simultaneous electro- encephalogram (although this alone does not exclude all forms of epilepsy or syncope). 0 For visual symptoms, a tubular visual field (i.e., tunnel vision). It is important to note that the diagnosis of conversion disorder should be based on the overall clinical picture and not on a single clinical finding. A number of associated features can support the diagnosis of conversion disorder. There may be a history of multiple similar somatic symptoms. Onset may be associated with stress or trauma, either psychological or physical in nature. The potential etiological rele- vance of this stress or trauma may be suggested by a close temporal relationship. However, while assessment for stress and trauma is important, the diagnosis should not be withheld if none is found. Conversion disorder is often associated with dissociative symptoms, such as deperson- alization, derealization, and dissociative amnesia, particularly at symptom onset or during attacks. The diagnosis of conversion disorder does not require the judgment that the symptoms are not intentionally produced (i.e., not feigned), as the definite absence of feigning may not be reliably discerned. The phenomenon of la belle indifférence (i.e., lack of concern about the nature or implications of the symptom) has been associated with conversion disorder but it is not specific for conversion disorder and should not be used to make the diagnosis. Similarly the concept of secondary gain (i.e., when individuals derive external benefits such as money or release from responsibilities) is also not specific to conversion disorder and particularly in the context of definite evidence for feigning, the diagnoses that should be considered instead would include factitious disorder or malingering (see the section ”Dif- ferential Diagnosis” for this disorder). Transient conversion symptoms are common, but the precise prevalence of the disorder is unknown. This is partly because the diagnosis usually requires assessment in secondary care, where it is found in approximately 5% of referrals to neurology clinics. The incidence of individual persistent conversion symptoms is estimated to be 2—5/ 100,000 per year. Onset has been reported throughout the life course. The onset of non-epileptic attacks peaks in the third decade, and motor symptoms have their peak onset in the fourth decade. The symptoms can be transient or persistent. The prognosis may be better in younger chil— dren than in adolescents and adults. Temperamental. Maladaptive personality traits are commonly associated with conver- sion disorder. Environmental. There may be a history of childhood abuse and neglect. Stressful life events are often, but not always, present. Genetic and physiological. The presence of neurological disease that causes similar symp- toms is a risk factor (e.g., non-epileptic seizures are more common in patients who also have epilepsy). Course modifiers. Short duration of symptoms and acceptance of the diagnosis are pos— itive prognostic factors. Maladaptive personality traits, the presence of comorbid physical disease, and the receipt of disability benefits may be negative prognostic factors. Changes resembling conversion (and dissociative) symptoms are common in certain culturally sanctioned rituals. If the symptoms are fully explained within the particular cultural context and do not result in clinically significant distress or disability, then the di- agnosis of conversion disorder is not made. Conversion disorder is two to three times more common in females. Functional Consequences of Conversion DisorderIndividuals withconversion symptoms may have substantial disability. The severity of dis- ability can be similar to that experienced by individuals with comparable medical diseases. If another mental disorder better explains the symptoms, that diagnosis should be made. However the diagnosis of conversion disorder may be made in the presence of another mental disorder. Neurological disease. The main differential diagnosis is neurological disease that might better explain the symptoms. After a thorough neurological assessment, an unexpected neurological disease cause for the symptoms is rarely found at follow up. However, reas- sessment may be required if the symptoms appear to be progressive. Conversion disorder may coexist with neurological disease. Somatic symptom disorder. Conversion disorder may be diagnosed in addition to so- matic symptom disorder. Most of the somatic symptoms encountered in somatic symptom disorder cannot be demonstrated to be clearly incompatible with pathophysiology (e.g., pain, fatigue), whereas in conversion disorder, such incompatibility is required for the di- agnosis. The excessive thoughts, feelings, and behaviors characterizing somatic symptom disorder are often absent in conversion disorder. Factitious disorder and malingering. The diagnosis of conversion disorder does not re- quire the judgment that the symptoms are not intentionally produced (i.e., not feigned), because assessment of conscious intention is unreliable. However definite evidence of feigning (e.g., clear evidence that loss of function is present during the examination but not at home) would suggest a diagnosis of factitious disorder if the individual’s apparent aim is to assume the sick role or malingering if the aim is to obtain an incentive such as money. Dissociative disorders. Dissociative symptoms are common in individuals with con- version disorder. If both conversion disorder and a dissociative disorder are present, both diagnoses should be made. Body dysmorphic disorder. Individuals with body dysmorphic disorder are exces- symptoms of sensory or motor functioning in the affected body part. Depressive disorders. In depressive disorders, individuals may report general heavi- ness of their limbs, whereas the weakness of conversion disorder is more focal and prom- inent. Depressive disorders are also differentiated by the presence of core depressive symptoms. Panic disorder. Episodic neurological symptoms (e.g., tremors and paresthesias) can occur in both conversion disorder and panic attacks. In panic attacks, the neurological symptoms are typically transient and acutely episodic with characteristic cardiorespira- tory symptoms. Loss of awareness with amnesia for the attack and violent limb move- ments occur in non-epileptic attacks, but not in panic attacks. Anxiety disorders, especially panic disorder, and depressive disorders commonly co—occur with conversion disorder. Somatic symptom disorder may co-occur as well. Psychosis, sub- stance use disorder, and alcohol misuse are uncommon. Personality disorders are more common in individuals with conversion disorder than in the general population. Neuro- logical or other medical conditions commonly coexist with conversion disorder as well. A. A medical symptom or condition (other than a mental disorder) is present. B. Psychological or behavioral factors adversely affect the medical condition in one of the following ways: 1. The factors have influenced the course of the medical condition as shown by a close temporal association between the psychological factors and the development or exacerbation of, or delayed recovery from, the medical condition. 2. The factors interfere with the treatment of the medical condition (e.g., poor adher- ence). 3. The factors constitute additional weII-established health risks for the individual. 4. The factors influence the underlying pathophysiology, precipitating or exacerbating symptoms or necessitating medical attention. C. The psychological and behavioral factors in Criterion B are not better explained by an- other mental disorder (e.g., panic disorder, major depressive disorder, posttraumatic stress disorder). Specify current severity:Mild: Increases medical risk (e.g.. inconsistent adherence with antihypertension treat- ment). Moderate: Aggravates underlying medical condition (e.g., anxiety aggravating asthma).Severe: Results in medical hospitalization or emergency room visit.Extreme: Results in severe, life-threatening risk (e.g., ignoring heart attack symp- toms). The essential feature of psychological factors affecting other medical conditions is the presence of one or more clinically significant psychological or behavioral factors that ad- versely affect a medical condition by increasing the risk for suffering, death, or disability (Criterion B). These factors can adversely affect the medical condition by influencing its course or treatment, by constituting an additional well—established health risk factor, or by influencing the underlying pathophysiology to precipitate or exacerbate symptoms or to necessitate medical attention. Psychological or behavioral factors include psychological distress, patterns of interper- sonal interaction, coping styles, and maladaptive health behaviors, such as denial of symp- toms or poor adherence to medical recommendations. Common clinical examples are anxiety-exacerbating asthma, denial of need for treatment for acute chest pain, and manip- ulation of insulin by an individual with diabetes wishing to lose weight. Many different psychological factors have been demonstrated to adversely influence medical conditions— for example, symptoms of depression or anxiety, stressful life events, relationship style, personality traits, and coping styles. The adverse effects can range from acute, with imme- diate medical consequences (e.g., Takotsubo cardiomyopathy) to chronic, occurring over a long period of time (e.g., chronic occupational stress increasing risk for hypertension). Af- fected medical conditions can be those with clear pathophysiology (e.g., diabetes, cancer, coronary disease), functional syndromes (e.g., migraine, irritable bowel syndrome, fibro- myalgia), or idiopathic medical symptoms (e.g., pain, fatigue, dizziness). This diagnosis should be reserved for situations in which the effect of the psychological factor on the medical condition is evident and the psychological factor has clinically sig- nificant effects ori the course or outcome of the medical condition. Abnormal psychologi- cal or behavioral symptoms that develop in response to a medical condition are more properly coded as an adjustment disorder (a clinically significant psychological response to an identifiable stressor). There must be reasonable evidence to suggest an association between the psychological factors and the medical condition, although it may often not be possible to demonstrate direct causality or the mechanisms underlying the relationship. The prevalence of psychological factors affecting other medical conditions is unclear. In US. private insurance billing data, it is a more common diagnosis than somatic symptom disorders. Psychological factors affecting other medical conditions can occur across the lifespan. Par- ticularly with young children, corroborative history from parents or school can assist the di- agnostic evaluation. Some conditions are characteristic of particular life stages (e.g., in older individuals, the stress associated with acting as a caregiver for an ill spouse or partner). on medical conditions, such as those in language and communication style, explanatory models of illness, patterns of seeking health care, service availability and organization, doctor-patient relationships and other healing practices, family and gender roles, and at- titudes toward pain and death. Psychological factors affecting other medical conditions must be differentiated from culturally specific behaviors such as using faith or spiritual healers or other variations in illness management that are acceptable within a culture and represent an attempt to help the medical condition rather than interfere with it. These local practices may complement rather than obstruct evidence-based interventions. If they do not adversely affect outcomes, they should not be pathologized as psychological factors affecting other medical conditions. Functional Consequences of Psychological FactorsPsychological and behavioral factors have been demonstrated to affect the course of many medical diseases. Mental disorder due to another medical condition. A temporal association between symptoms of a mental disorder and those of a medical condition is also characteristic of a mental disorder due to another medical condition, but the presumed causality is in the op- posite direction. In a mental disorder due to another medical condition, the medical condition is judged to be causing the mental disorder through a direct physiological mech- anism. In psychological factors affecting other medical conditions, the psychological or be- havioral factors are judged to affect the course of the medical condition. Adjustment disorders. Abnormal psychological or behavioral symptoms that develop in response to a medical condition are more properly coded as an adjustment disorder (a clin- ically significant psychological response to an identifiable stressor). For example, an indi- vidual with angina that is precipitated whenever he becomes enraged would be diagnosed as having psychological factors affecting other medical conditions, whereas an individual with angina who developed maladaptive anticipatory anxiety would be diagnosed as hav- ing an adjustment disorder with anxiety. In clinical practice, however, psychological fac- tors and a medical condition are often mutually exacerbating (e.g., anxiety as both a precipitant and a consequence of angina), in which case the distinction is arbitrary. Other mental disorders frequently result in medical complications, most notably substance use disorders (e.g., alcohol use disorder, tobacco use disorder). If an individual has a coexisting major mental disorder that adversely affects or causes another medical condition, diagno- ses of the mental disorder and the medical condition are usually sufficient. Psychological factors affecting other medical conditions is diagnosed when the psychological traits or behaviors do not meet criteria for a mental diagnosis. Somatic symptom disorder. Somatic symptom disorder is characterized by a combina- tion of distressing somatic symptoms and excessive or maladaptive thoughts, feelings, and behavior in response to these symptoms or associated health concerns. The individual may or may not have a diagnosable medical condition. In contrast, in psychological factors affecting other medical conditions, the psychological factors adversely affect a medical condition; the individual’s thoughts, feelings, and behavior are not necessarily excessive. The difference is one of emphasis, rather than a clear-cut distinction. In psychological fac- tors affecting other medical conditions, the emphasis is on the exacerbation of the medical condition (e.g., an individual with angina that is precipitated whenever he becomes anx- ious). In somatic symptom disorder, the emphasis is on maladaptive thoughts, feelings, and behavior (e.g., an individual with angina who worries constantly that she will have a heart attack, takes her blood pressure multiple times per day, and restricts her activities). Illness anxiety disorder. Illness anxiety disorder is characterized by high illness anxiety that is distressing and / or disruptive to daily life with minimal somatic symptoms. The fo- cus of clinical concern is the individual's worry about having a disease; in most cases, no serious disease is present. In psychological factors affecting other medical conditions, anx- iety may be a relevant psychological factor affecting a medical condition, but the clinical concern is the adverse effects on the medical condition. By definition, the diagnosis of psychological factors affecting other medical conditions entails a relevant psychological or behavioral syndrome or trait and a comorbid medical condition. Diagnostic Criteria 300.19 (F68.10)A. Falsification of physical or psychological signs or symptoms, or induction of injury or disease, associated with identified deception. B. The individual presents himself or herself to others as ill, impaired, or injured. C. The deceptive behavior is evident even in the absence of obvious external rewards. D. The behavior is not better explained by another mental disorder. such as delusional disorder or another psychotic disorder. Recurrent episodes (two or more events of falsification of illness and/or induction of A. Falsification of physical or psychological signs or symptoms, or induction of injury or disease, in another, associated with identified deception. B. The individual presents another individual (victim) to others as ill, impaired, or injured. C. The deceptive behavior is evident even in the absence of obvious external rewards. D. The behavior is not better explained by another mental disorder, such as delusional disorder or another psychotic disorder. Note: The perpetrator, not the victim, receives this diagnosis.Recurrent episodes (two or more events of falsification of illness and/or induction of When an individual falsifies illness in another (e.g., children, adults, pets), the diagnosis is factitious disorder imposed on another. The perpetrator, not the victim, is given the diag- nosis. The victim may be given an abuse diagnosis (e.g., 995.54 [T74.12X]; see the chapter ”Other Conditions That May Be a Focus of Clinical Attention”). The essential feature of factitious disorder is the falsification of medical or psychological signs and symptoms in oneself or others that are associated with the identified deception. Indi- viduals with factitious disorder can also seek treatment for themselves or another following induction of injury or disease. The diagnosis requires demonstrating that the individual is taking surreptitious actions to misrepresent, simulate, or cause signs or symptoms of ill- ness or injury in the absence of obvious external rewards. Methods of illness falsification can include exaggeration, fabrication, simulation, and induction. While a preexisting med— ical condition may be present, the deceptive behavior or induction of injury associated with deception causes others to view such individuals (or another) as more ill or impaired, and this can lead to excessive clinical intervention. Individuals with factitious disorder might, for example, report feelings of depression and suicidality following the death of a spouse despite the death not being true or the individual’s not having a spouse; decep- tively report episodes of neurological symptoms (e.g., seizures, dizziness, or blacking out); manipulate a laboratory test (e.g., by adding blood to urine) to falsely indicate an abnor- mality; falsify medical records to indicate an illness; ingest a substance (e.g., insulin or warfarin) to induce an abnormal laboratory result or illness; or physically injure them- selves or induce illness in themselves or another (e.g., by injecting fecal material to produce an abscess or to induce sepsis). Individuals with factitious disorder imposed on self or factitious disorder imposed on an- other are at risk for experiencing great psychological distress or functional impairment by causing harm to themselves and others. Family, friends, and health care professionals are also often adversely affected by their behavior. Factitious disorders have similarities to substance use disorders, eating disorders, impulse-control disorders, pedophilic disorder, and some other established disorders related to both the persistence of the behavior and the intentional efforts to conceal the disordered behavior through deception. Whereas some aspects of factitious disorders might represent criminal behavior (e.g., factitious dis- order imposed on another, in which the parent’s actions represent abuse and maltreat- ment of a child), such criminal behavior and mental illness are not mutually exclusive. The diagnosis of factitious disorder emphasizes the objective identification of falsification of signs and symptoms of illness, rather than an inference about intent or possible underly- ing motivation. Moreover, such behaviors, including the induction of injury or disease, are associated with deception. The prevalence of factitious disorder is unknown, likely because of the role of deception in this population. Among patients in hospital settings, it is estimated that about 1% of indi- viduals have presentations that meet the criteria for factitious disorder. The course of factitious disorder is usually one of intermittent episodes. Single episodes and episodes that are characterized as persistent and unremitting are both less common. Onset is usually in early adulthood, often after hospitalization for a medical condition or a mental disorder. When imposed on another, the disorder may begin after hospitalization of the individual’s child or other dependent. In individuals with recurrent episodes of fal- sification of signs and symptoms of illness and / or induction of injury, this pattern of suc- cessive deceptive contact with medical personnel, including hospitalizations, may become lifelong. Caregivers who lie about abuse injuries in dependents solely to protect themselves from lia- bility are not diagnosed with factitious disorder imposed on another because protection from liability is an external reward (Criterion C, the deceptive behavior is evident even in the ab- sence of obvious external rewards). Such caregivers who, upon observation, analysis of med- ical records, and / or interviews with others, are found to lie more extensively than needed for immediate self—protection are diagnosed with factitious disorder imposed on another. Somatic symptom disorder. In somatic symptom disorder, there may be excessive at- tention and treatment seeking for perceived medical concerns, but there is no evidence that the individual is providing false information or behaving deceptively. Malingerlng. Malingering is differentiated from factitious disorder by the intentional re- porting of symptoms for personal gain (e.g., money, time off work). In contrast, the diag- nosis of factitious disorder requires the absence of obvious rewards. Conversion disorder (functional neurological symptom disorder). Conversion disorder is characterized by neurological symptoms that are inconsistent with neurological patho- physiology. Factitious disorder with neurological symptoms is distinguished from con- version disorder by evidence of deceptive falsification of symptoms. Borderiine personality disorder. Deliberate physical self-harm in the absence of suicidal intent can also occur in association with other mental disorders such as borderline person- ality disorder. Factitious disorder requires that the induction of injury occur in association with deception. Medical condition or mental disorder not associated with intentional symptom falsifi- cation. Presentation of signs and symptoms of illness that do not conform to an identi- fiable medical condition or mental disorder increases the likelihood of the presence of a factitious disorder. However, the diagnosis of factitious disorder does not exclude the presence of true medical condition or mental disorder, as comorbid illness often occurs in the individual along with factitious disorder. For example, individuals who might manip- ulate blood sugar levels to produce symptoms may also have diabetes. 300.89 (F45.8)This category applies to presentations in which symptoms characteristic of a somatic cial, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the somatic symptom and related disorders diagnos- tic class. Examples of presentations that can be specified using the “other specified" designation include the following: 1. Brief somatic symptom disorder: Duration of symptoms is less than 6 months. 2. Brief illness anxiety disorder: Duration of symptoms is less than 6 months. 3. Illness anxiety disorder without excessive health-related behaviors: Criterion D for illness anxiety disorder is not met. 4. Pseudocyesis: A false belief of being pregnant that is associated with objective signs and reported symptoms of pregnancy. 300.82 (F45.9)This category applies to presentations in which symptoms characteristic of a somatic cial, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the somatic symptom and related disorders diagnos- tic class. The unspecified somatic symptom and related disorder category should not be used unless there are decidedly unusual situations where there is insufficient information to make a more specific diagnosis. , FeedingaEating Disorde?Feed | rig an d eati ng disorders are characterized by a persistent disturbance of eat- ing or eating-related behavior that results in the altered consumption or absorption of food and that significantly impairs physical health or psychosocial functioning. Diagnos- tic criteria are provided for pica, rumination disorder, avoidant/restrictive food intake disorder, anorexia nervosa, bulimia nervosa, and binge-eating disorder. The diagnostic criteria for rumination disorder, avoidant/restrictive food intake dis- order, anorexia nervosa, bulimia nervosa, and binge-eating disorder result in a classifica- tion scheme that is mutually exclusive, so that during a single episode, only one of these diagnoses can be assigned. The rationale for this approach is that, despite a number of common psychological and behavioral features, the disorders differ substantially in clin- ical course, outcome, and treatment needs. A diagnosis of pica, however, may be assigned in the presence of any other feeding and eating disorder. Some individuals with disorders described in this chapter report eating-related symp- toms resembling those typically endorsed by individuals with substance use disorders, such as craving and patterns of compulsive use. This resemblance may reflect the involve- ment of the same neural systems, including those implicated in regulatory self-control and reward, in both groups of disorders. However, the relative contributions of shared and distinct factors in the development and perpetuation of eating and substance use disor- ders remain insufficiently understood. Finally, obesity is not included in DSM-5 as a mental disorder. Obesity (excess body fat) results from the long—term excess of energy intake relative to energy expenditure. A range of genetic, physiological, behavioral, and environmental factors that vary across individ- uals contributes to the development of obesity; thus, obesity is not considered a mental disorder. However, there are robust associations between obesity and a number of mental disorders (e.g., binge-eating disorder, depressive and bipolar disorders, schizophrenia). The side effects of some psychotropic medications contribute importantly to the develop- ment of obesity, and obesity may be a risk factor for the development of some mental dis- orders (e.g., depressive disorders). A. Persistent eating of nonnutritive, nonfood substances over a period of at least 1 month. B. The eating of nonnutritive, nontood substances is inappropriate to the developmental level of the individual. . The eating behavior is not part of a culturally supported or socially normative practice. . If the eating behavior occurs in the context of another mental disorder (e.g., intellectual disability [intellectual developmental disorder], autism spectrum disorder, schizophre- nia) or medical condition (including pregnancy), it is sufficiently severe to warrant ad- ditional clinical attention. Coding note: The |CD-9-CM code for pica is 307.52 and is used for children or adults. The ICD-10-CM codes for pica are (F98.3) in children and (F50.8) in adults. Specify it:In remission: After full criteria for pica were previously met. the criteria have not been met for a sustained period of time. The essential feature of pica is the eating of one or more nonnutritive, nonfood substances on a persistent basis over a period of at least 1 month (Criterion A) that is severe enough to warrant clinical attention. Typical substances ingested tend to vary with age and availability and might include paper, soap, cloth, hair, string, wool, soil, chalk, talcum powder, paint, gum, metal, pebbles, charcoal or coal, ash, clay, starch, or ice. The term nonfood is included because the di- agnosis of pica does not apply to ingestion of diet products that have minimal nutritional con- tent. There is typically no aversion to food in general. The eating of nonnutritive, nonfood substances must be developmentally inappropriate (Criterion B) and not part of a culturally supported or socially normative practice (Criterion C). A minimum age of 2 years is suggested for a pica diagnosis to exclude developmentally normal mouthing of objects by infants that re- sults in ingestion. The eating of nonnutritive, nonfood substances can be an associated feature of other mental disorders (e.g., intellectual disability [intellectual developmental disorder], autism spectrum disorder, schizophrenia). If the eating behavior occurs exclusively in the con- text of another mental disorder, a separate diagnosis of pica should be made only if the eating behavior is sufficiently severe to warrant additional clinical attention (Criterion D). Although deficiencies in vitamins or minerals (e.g., zinc, iron) have been reported in some instances, often no specific biological abnormalities are found. In some cases, pica comes to clinical attention only following general medical complications (e.g., mechanical bowel problems; intestinal obstruction, such as that resulting from a bezoar; intestinal perfora- tion; infections such as toxoplasmosis and toxocariasis as a result of ingesting feces or dirt; poisoning, such as by ingestion of lead-based paint). The prevalence of pica is unclear. Among individuals with intellectual disability, the prev- alence of pica appears to increase with the severity of the condition. Onset of pica can occur in childhood, adolescence, or adulthood, although childhood onset is most commonly reported. Pica can occur in otherwise normally developing children, whereas in adults, it appears more likely to occur in the context of intellectual disability or other mental disorders. The eating of nonnutritive, nonfood substances may also manifest in pregnancy, when specific cravings (e.g., chalk or ice) might occur. The diagnosis of pica during pregnancy is only appropriate if such cravings lead to the ingestion of nonnutri- tive, nonfood substances to the extent that the eating of these substances poses potential medical risks. The course of the disorder can be protracted and can result in medical emer- gencies (e.g., intestinal obstruction, acute weight loss, poisoning). The disorder can poten- tially be fatal depending on substances ingested. Environmental. Neglect, lack of supervision, and developmental delay can increase the risk for this condition. In some populations, the eating of earth or other seemingly nonnutritive substances is believed to be of spiritual, medicinal, or other social value, or may be a culturally supported or socially normative practice. Such behavior does not warrant a diagnosis of pica (Criterion C). Pica occurs in both males and females. It can occur in females during pregnancy; however, little is known about the course of pica in the postpartum period. Abdominal flat plate radiography, ultrasound, and other scanning methods may reveal obstructions related to pica. Blood tests and other laboratory tests can be used to ascertain levels of poisoning or the nature of infection. Functional Consequences of PicaPica can significantly impair physical functioning, but it is rarely the sole cause of impair- ment in social functioning. Pica often occurs with other disorders associated with im- paired social functioning. Eating of nonnutritive, nonfood substances may occur during the course of other mental disorders (e.g., autism spectrum disorder, schizophrenia) and in Kleine-Levin syndrome. In any such instance, an additional diagnosis of pica should be given only if the eating be- havior is sufficiently persistent and severe to warrant additional clinical attention. Anorexia nervosa. Pica can usually be distinguished from the other feeding and eating disorders by the consumption of nonnutritive, nonfood substances. It is important to note, however, that some presentations of anorexia nervosa include ingestion of nonnutritive, nonfood substances, such as paper tissues, as a means of attempting to control appetite. In such cases, when the eating of nonnutritive, nonfood substances is primarily used as a means of weight control, anorexia nervosa should be the primary diagnosis. Factitious disorder. Some individuals with factitious disorder may intentionally ingest foreign objects as part of the pattern of falsification of physical symptoms. In such in— stances, there is an element of deception that is consistent with deliberate induction of in- jury or disease. Nonsuicidal seIf-injury and nonsuicidal seIf-injury behaviors in personality disorders.Some individuals may swallow potentially harmful items (e.g., pins, needles, knives) in the context of maladaptive behavior patterns associated with personality disorders or nonsuicidal self-injury. Disorders most commonly comorbid with pica are autism spectrum disorder and intellec- tual disability (intellectual developmental disorder), and, to a lesser degree, schizophrenia and obsessive-compulsive disorder. Pica can be associated with trichotillomania (hair— pulling disorder) and excoriation (skin-picking) disorder. In comorbid presentations, the hair or skin is typically ingested. Pica can also be associated with avoidant/ restrictive food intake disorder, particularly in individuals with a strong sensory component to their pre- sentation. When an individual is known to have pica, assessment should include con- sideration of the possibility of gastrointestinal complications, poisoning, infection, and nutritional deficiency. Diagnostic Criteria 307.53 (F9821)A. Repeated regurgitation of food over a period of at least 1 month. Regurgitated food may be re-chewed, re-swallowed, or spit out. B. The repeated regurgitation is not attributable to an associated gastrointestinal or other medical condition (e.g.. gastroesophageal reflux, pyloric stenosis). C. The eating disturbance does not occur exclusively during the course of anorexia nervosa, bulimia nervosa, binge-eating disorder, or avoidant/restrictive food intake disorder. D. It the symptoms occur in the context of another mental disorder (e.g., intellectual dis- ability [intellectual developmental disorder] or another neurodevelopmental disorder), they are sufficiently severe to warrant additional clinical attention. Specify it:In remission: After full criteria for rumination disorder were previously met, the criteria have not been met for a sustained period of time. The essential feature of rumination disorder is the repeated regurgitation of food occur- ring after feeding or eating over a period of at least 1 month (Criterion A). Previously swal- lowed food that may be partially digested is brought up into the mouth without apparent nausea, involuntary retching, or disgust. The food may be re-chewed and then ejected from the mouth or re—swallowed. Regurgitation in rumination disorder should be fre- quent, occurring at least several times per week, typically daily. The behavior is not better explained by an associated gastrointestinal or other medical condition (e.g., gastroesoph- ageal reflux, pyloric stenosis) (Criterion B) and does not occur exclusively during the course of anorexia nervosa, bulimia nervosa, binge-eating disorder, or avoidant/restric- tive food intake disorder (Criterion C). If the symptoms occur in the context of another mental disorder (e.g., intellectual disability [intellectual developmental disorder], neuro- developmental disorder), they must be sufficiently severe to warrant additional clinical attention (Criterion D) and should represent a primary aspect of the individual’s presen- tation requiring intervention. The disorder may be diagnosed across the life span, par- ticularly in individuals who also have intellectual disability. Many individuals with rumination disorder can be directly observed engaging in the behavior by the clinician. In other instances diagnosis can be made on the basis of self—report or corroborative informa- tion from parents or caregivers. Individuals may describe the behavior as habitual or out- side of their control. Infants with rumination disorder display a characteristic position of straining and arching the back with the head held back, making sucking movements with their tongue. They may give the impression of gaining satisfaction from the activity. They may be irritable and hungry between episodes of regurgitation. Weight loss and failure to make expected weight gains are common features in infants with rumination disorder. Malnutrition may occur despite the infant’s apparent hunger and the ingestion of relatively large amounts of food, particularly in severe cases, when regurgitation immediately follows each feeding episode and regurgitated food is expelled. Malnutrition might also occur in older children and adults, particularly when the regurgitation is accompanied by restriction of intake. Adolescents and adults may attempt to disguise the regurgitation behavior by placing a hand over the mouth or coughing. Some will avoid eating with others because of the ac- knowledged social undesirability of the behavior. This may extend to an avoidance of eat- ing prior to social situations, such as work or school (e.g., avoiding breakfast because it may be followed by regurgitation). Prevalence data for rumination disorder are inconclusive, but the disorder is commonly reported to be higher in certain groups, such as individuals with intellectual disability. Onset of rumination disorder can occur in infancy, childhood, adolescence, or adulthood. The age at onset in infants is usually between ages 3 and 12 months. In infants, the disorder frequently remits spontaneously, but its course can be protracted and can result in medical emergencies (e.g., severe malnutrition). It can potentially be fatal, particularly in infancy. Rumination disorder can have an episodic course or occur continuously until treated. In infants, as well as in older individuals with intellectual disability (intellectual developmen- tal disorder) or other neurodevelopmental disorders, the regurgitation and rumination be- havior appears to have a self—soothing or self—stimulating function, similar to that of other repetitive motor behaviors such as head banging. Environmental. Psychosocial problems such as lack of stimulation, neglect, stressful life situations, and problems in the parent—child relationship may be predisposing factors in infants and young children. Functional Consequences of Rumination DisorderMalnutrition secondary to repeated regurgitation may be associated with growth delay and have a negative effect on development and learning potential. Some older individuals with rumination disorder deliberately restrict their food intake because of the social un- desirability of regurgitation. They may therefore present with weight loss or low weight. In older children, adolescents, and adults, social functioning is more likely to be adversely affected. Gastrointestinal conditions. It is important to differentiate regurgitation in rumination disorder from other conditions characterized by gastroesophageal reflux or vomiting. Con- ditions such as gastroparesis, pyloric stenosis, hiatal hernia, and Sandifer syndrome in in- fants should be ruled out by appropriate physical examinations and laboratory tests. Anorexia nervosa and bulimia nervosa. Individuals with anorexia nervosa and bulimia nervosa may also engage in regurgitation with subsequent spitting out of food as a means of disposing of ingested calories because of concerns about weight gain. Regurgitation with associated rumination can occur in the context of a concurrent medical condition or another mental disorder (e.g., generalized anxiety disorder). When the regur- gitation occurs in this context, a diagnosis of rumination disorder is appropriate only when the severity of the disturbance exceeds that routinely associated with such conditions or disorders and warrants additional clinical attention. Diagnostic Criteria 307.59 (F50.8)A. An eating orfeeding disturbance (e.g., apparent lack of interest in eating or food; avoid- ance based on the sensory characteristics of food; concern about aversive conse- quences of eating) as manifested by persistent failure to meet appropriate nutritional and/or energy needs associated with one (or more) of the following: 1. Significant weight loss (or failure to achieve expected weight gain or faltering growth in children). 2. Significant nutritional deficiency.3. Dependence on enteral feeding or oral nutritional supplements.4. Marked interference with psychosocial functioning.B. The disturbance is not better explained by lack of available food or by an associated culturally sanctioned practice. C. The eating disturbance does not occur exclusively during the course of anorexia ner- vosa or bulimia nervosa, and there is no evidence of a disturbance in the way in which one’s body weight or shape is experienced. D. The eating disturbance is not attributable to a concurrent medical condition or not bet- ter explained by another mental disorder. When the eating disturbance occurs in the context of another condition or disorder, the severity of the eating disturbance exceeds that routinely associated with the condition or disorder and warrants additional clinical attention. Specify it:In remission: After full criteria for avoidant/restrictive food intake disorder were previ- ously met, the criteria have not been met for a sustained period of time. Avoidant/restrictive food intake disorder replaces and extends the DSM-IV diagnosis of feeding disorder of infancy or early childhood. The main diagnostic feature of avoidant/ restrictive food intake disorder is avoidance or restriction of food intake (Criterion A) manifested by clinically significant failure to meet requirements for nutrition or insuffi- cient energy intake through oral intake of food. One or more of the following key features must be present: significant weight loss, significant nutritional deficiency (or related health impact), dependence on enteral feeding or oral nutritional supplements, or marked interference with psychosocial functioning. The determination of whether weight loss is significant (Criterion A1) is a clinical judgment; instead of losing weight, children and ad- along their developmental trajectory. ' Determination of significant nutritional deficiency (Criterion A2) is also based on clin- ical assessment (e.g., assessment of dietary intake, physical examination, and laboratory testing), and related impact on physical health can be of a similar severity to that seen in anorexia nervosa (e.g., hypothermia, bradycardia, anemia). In severe cases, particularly in infants, malnutrition can be life threatening. "Dependence” on enteral feeding or oral nu- tritional supplements (Criterion A3) means that supplementary feeding is required to sus- tain adequate intake. Examples of individuals requiring supplementary feeding include infants with failure to thrive who require nasogastric tube feeding, children with neuro- developmental disorders who are dependent on nutritionally complete supplements, and in the absence of an underlying medical condition. Inability to participate in normal social activities, such as eating with others, or to sustain relationships as a result of the distur- bance would indicate marked interference with psychosocial functioning (Criterion A4). food intake related to lack of availability of food or to cultural practices (e.g., religious fast- ing or normal dieting) (Criterion B), nor does it include developmentally normal behaviors (e.g., picky eating in toddlers, reduced intake in older adults). The disturbance is not better medical factors or mental disorders (Criterion D). In some individuals, food avoidance or restriction may be based on the sensory char- acteristics of qualities of food, such as extreme sensitivity to appearance, color, smell, texture, temperature, or taste. Such behavior has been described as ”restrictive eating,” "selective eating," ”choosy eating,” ”perseverant eating, chronic food refusal,” and “food neophobia” and may manifest as refusal to eat particular brands of foods or to tol- erate the smell of food being eaten by others. Individuals with heightened sensory sensi- tivities associated with autism may show similar behaviors. sociated with food intake following, or in anticipation of, an aversive experience, such as choking; a traumatic investigation, usually involving the gastrointestinal tract (e.g., esoph— agoscopy); or repeated vomiting. The termsfunctional dysphagia and globus hystericus have also been used for such conditions. Several features may be associated with food avoidance or reduced food intake, including a lack of interest in eating or food, leading to weight loss or faltering growth. Very young infants may present as being too sleepy, distressed, or agitated to feed. Infants and young children may not engage with the primary caregiver during feeding or communicate hun- ger in favor of other activities. In older children and adolescents, food avoidance or restric- tion may be associated with more generalized emotional difficulties that do not meet diagnostic criteria for an anxiety, depressive, or bipolar disorder, sometimes called ”food avoidance emotional disorder.” Food avoidance or restriction associated with insufficient intake or lack of interest in eat- ing most commonly develops in infancy or early childhood and may persist in adulthood. Likewise, avoidance based on sensory characteristics of food tends to arise in the first de- cade of life but may persist into adulthood. Avoidance related to aversive consequences can arise at any age. The scant literature regarding long—term outcomes suggests that food avoidance or restriction based on sensory aspects is relatively stable and long-standing, but when persisting into adulthood, such avoidance / restriction can be associated with rel- atively normal functioning. There is currently insufficient evidence directly linking avoid- ant/restrictive food intake disorder and subsequent onset of an eating disorder. Infants with avoidant/ restrictive food intake disorder may be irritable and difficult to console during feeding, or may appear apathetic and withdrawn. In some instances, par- ent-child interaction may contribute to the infant’s feeding problem (e.g., presenting food inappropriately, or interpreting the infant’s behavior as an act of aggression or rejection). Inadequate nutritional intake may exacerbate the associated features (e.g., irritability, de- velopmental lags) and further contribute to feeding difficulties. Associated factors include to feeding. Coexisting parental psychopathology, or child abuse or neglect, is suggested if feeding and weight improve in response to changing caregivers. In infants, children, and prepubertal adolescents, avoidant/ restrictive food intake disorder may be associated with growth delay, and the resulting malnutrition negatively affects development and learning potential. In older children, adolescents, and adults, social functioning tends to be ad- versely affected. Regardless of the age, family function may be affected, with heightened stress at mealtimes and in other feeding or eating contexts involving friends and relatives. in adults, and there may be a long delay between onset and clinical presentation. Triggers for presentation vary considerably and include physical, social, and emotional difficulties. Temperamental. Anxiety disorders, autism spectrum disorder, obsessive-compulsive disorder, and attention-deficit/hyperactivity disorder may increase risk for avoidant or restrictive feeding or eating behavior characteristic of the disorder. Environmental. Environmental risk factors for avoidant/ restrictive food intake disor- der include familial anxiety. Higher rates of feeding disturbances may occur in children of mothers with eating disorders. Genetic and physiological. History of gastrointestinal conditions, gastroesophageal re- flux disease, vomiting, and a range of other medical problems has been associated with feeding and eating behaviors characteristic of avoidant/restrictive food intake disorder. Presentations similar to avoidant/restrictive food intake disorder occur in various popu- lations, including in the United States, Canada, Australia, and Europe. Avoidant/restrictive food intake disorder should not be diagnosed when avoidance of food intake is solely re- lated to specific religious or cultural practices. Avoidant/restrictive food intake disorder is equally common in males and females in in- fancy and early childhood, but avoidant/restrictive food intake disorder comorbid with autism spectrum disorder has a male predominance. Food avoidance or restriction related to altered sensory sensitivities can occur in some physiological conditions, most notably pregnancy, but is not usually extreme and does not meet full criteria for the disorder. Diagnostic markers include malnutrition, low weight, growth delay, and the need for ar- tificial nutrition in the absence of any clear medical condition other than poor intake. Functionai Consequences of AvoidanthestrictiveAssociated developmental and functional limitations include impairment of physical de- function. Appetite loss preceding restricted intake is a nonspecific symptom that can accompany a number of mental diagnoses. Avoidant/restrictive food intake disorder can be diagnosed concurrently with the disorders below if all criteria are met, and the eating disturbance re- quires specific clinical attention. Other medical conditions (e.g., gastrointestinal disease, food allergies and intoler- ances, occult malignancies). Restriction of food intake may occur in other medical condi- tions, especially those with ongoing symptoms such as vomiting, loss of appetite, nausea, ab- dominal pain, or diarrhea. A diagnosis of avoidant/ restrictive food intake disorder requires that the disturbance of intake is beyond that directly accounted for by physical symptoms con- sistent with a medical condition; the eating disturbance may also persist after being triggered by a medical condition and following resolution of the medical condition. Underlying medical or comorbid mental conditions may complicate feeding and eating. Because older individuals, postsurgical patients, and individuals receiving chemotherapy often lose their appetite, an additional diagnosis of avoidant/restrictive food intake dis— order requires that the eating disturbance is a primary focus for intervention. Specific neurological/neuromuscular, structural, or congenital disorders and condi- tions associated with feeding difficulties. Feeding difficulties are common in a number of congenital and neurological conditions often related to problems with oral/esophageal/ pharyngeal structure and function, such as hypotonia of musculature, tongue protrusion, and unsafe swallowing. Avoidant/ restrictive food intake disorder can be diagnosed in in- dividuals with such presentations as long as all diagnostic criteria are met. Reactive attachment disorder. Some degree of withdrawal is characteristic of reactive attachment disorder and can lead to a disturbance in the caregiver-child relationship that can affect feeding and the child’s intake. Avoidant/restrictive food intake disorder should be diagnosed concurrently only if all criteria are met for both disorders and the feeding disturbance is a primary focus for intervention. Autism spectrum disorder. Individuals with autism spectrum disorder often present with rigid eating behaviors and heightened sensory sensitivities. However, these features do not always result in the level of impairment that would be required for a diagnosis of avoidant/ restrictive food intake disorder. Avoidant/restrictive food intake disorder should be diagnosed concurrently only if all criteria are met for both disorders and when the eat- ing disturbance requires specific treatment. Specific phobia, social anxiety disorder (social phobia), and other anxiety disorders. Specific phobia, other type, specifies ”situations that may lead to choking or vomiting” and can represent the primary trigger for the fear, anxiety, or avoidance required for diagnosis. ficult when a fear of choking or vomiting has resulted in food avoidance. Although avoid- ance or restriction of food intake secondary to a pronounced fear of choking or vomiting can be conceptualized as specific phobia, in situations when the eating problem becomes the primary focus of clinical attention, avoidant/ restrictive food intake disorder becomes the appropriate diagnosis. In social anxiety disorder, the individual may present with a fear of being observed by others while eating, Which can also occur in avoidant/ restrictive food intake disorder. Anorexia nervosa. Restriction of energy intake relative to requirements leading to sig- nificantly low body weight is a core feature of anorexia nervosa. However, individuals with anorexia nervosa also display a fear of gaining weight or of becoming fat, or persis- tent behavior that interferes with weight gain, as well as specific disturbances in relation to perception and experience of their own body weight and shape. These features are not present in avoidant/ restrictive food intake disorder, and the two disorders should not be diagnosed concurrently. Differential diagnosis between avoidant/restrictive food intake disorder and anorexia nervosa may be difficult, especially in late childhood and early ad- olescence, because these disorders may share a number of common symptoms (e.g., food avoidance, low weight). Differential diagnosis is also potentially difficult in individuals with anorexia nervosa who deny any fear of fatness but nonetheless engage in persistent behaviors that prevent weight gain and who do not recognize the medical seriousness of their low weight—a presentation sometimes termed ”non-fat phobic anorexia nervosa." Full consideration of symptoms, course, and family history is advised, and diagnosis may be best made in the context of a clinical relationship over time. In some individuals, avoid- ant/restrictive food intake disorder might precede the onset of anorexia nervosa. Obsessive-compulsive disorder. Individuals with obsessive-compulsive disorder may present with avoidance or restriction of intake in relation to preoccupations with food or ritualized eating behavior. Avoidant/restrictive food intake disorder should be diagnosed concurrently only if all criteria are met for both disorders and when the aberrant eating is a major aspect of the clinical presentation requiring specific intervention. Major depressive disorder. In major depressive disorder, appetite might be affected to such an extent that individuals present with significantly restricted food intake, usually in relation to overall energy intake and often associated with weight loss. Usually appetite loss and related reduction of intake abate with resolution of mood problems. Avoidant/ restrictive food intake disorder should only be used concurrently if full criteria are met for both disorders and when the eating disturbance requires specific treatment. Schizophrenia spectrum disorders. Individuals with schizophrenia, delusional disor- der, or other psychotic disorders may exhibit odd eating behaviors, avoidance of specific foods because of delusional beliefs, or other manifestations of avoidant or restrictive in- take. In some cases, delusional beliefs may contribute to a concern about negative conse- quences of ingesting certain foods. Avoidant/ restrictive food intake disorder should be used concurrently only if all criteria are met for both disorders and when the eating dis- turbance requires specific treatment. Factitious disorder or factitious disorder imposed on another. Avoidant/restrictive der imposed on another. In order to assume the sick role, some individuals with factitious disorder may intentionally describe diets that are much more restrictive than those they are actually able to consume, as well as complications of such behavior, such as a need for enteral feedings or nutritional supplements, an inability to tolerate a normal range of foods, and/ or an inability to participate normally in age-appropriate situations involving food. The presentation may be impressively dramatic and engaging, and the symptoms re- ported inconsistently. In factitious disorder imposed on another, the caregiver describes symptoms consistent with avoidant/restrictive food intake disorder and may induce physical symptoms such as failure to gain weight. As with any diagnosis of factitious dis- order imposed on another, the caregiver receives the diagnosis rather than the affected in- dividual, and diagnosis should be made only on the basis of a careful, comprehensive assessment of the affected individual, the caregiver, and their interaction. The most commonly observed disorders comorbid with avoidant/restrictive food intake disorder are anxiety disorders, obsessive-compulsive disorder, and neurodevelopmental disorders (specifically autism spectrum disorder, attention-deficit/hyperactivity disor- der, and intellectual disability [intellectual developmental disorder]). A. Restriction of energy intake relative to requirements, leading to a significantly low body weight in the context of age, sex, developmental trajectory, and physical health. Sig- nificantly low weight is defined as a weight that is less than minimally normal or, for children and adolescents, less than that minimally expected. B. Intense fear of gaining weight or of becoming fat, or persistent behavior that interferes with weight gain, even though at a significantly low weight. C. Disturbance in the way in which one’s body weight or shape is experienced, undue in- fluence of body weight or shape on seIf-evaluation, or persistent lack of recognition of the seriousness of the current low body weight. Coding note: The |CD-9-CM code for anorexia nervosa is 307.1, which is assigned re- gardless of the subtype. The lCD-10-CM code depends on the subtype (see below). Specify whether: (F50.01) Restricting type: During the last 3 months, the individual has not engaged in re- current episodes of binge eating or purging behavior (i.e., self—induced vomiting or the mis- use of laxatives, diuretics, or enemas). This subtype describes presentations in which weight loss is accomplished primarily through dieting, fasting, and/or excessive exercise. (F50.02) Binge-eating/purging type: During the last 3 months, the individual has en- gaged in recurrent episodes of binge eating or purging behavior (i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas). Specify if:In partial remission: Al'ter full criteria for anorexia nervosa were previously met, Cri- terion A (low body weight) has not been met for a sustained period, but either Criterion B (intense fear of gaining weight or becoming fat or behavior that interferes with weight gain) or Criterion C (disturbances in seIf-perception of weight and shape) is still met. In full remission: After full criteria for anorexia nervosa were previously met, none of the criteria have been met for a sustained period of time. Specify current severity:The minimum level of severity is based, for adults, on current body mass index (BMI) (see below) or, for children and adolescents, on BMI percentile. The ranges below are derived cents, corresponding BMI percentiles should be used. The level of severity may be in— creased to reflect clinical symptoms, the degree of functional disability, and the need for supervision. Mild: BM|217 kg/m2Moderate: BMI 16—16.99 kg/m2Severe: BMI 15—15.99 kg/m2Extreme: BMI < 15 kg/m2Most individuals with the binge-eating/purging type of anorexia nervosa who binge eat also purge through self—induced vomiting or the misuse of laxatives, diuretics, or enemas. Some individuals with this subtype of anorexia nervosa do not binge eat but do regularly purge after the consumption of small amounts of food. Crossover between the subtypes over the course of the disorder is not uncommon; therefore, subtype description should be used to describe current symptoms rather than longitudinal course. There are three essential features of anorexia nervosa: persistent energy intake restriction; intense fear of gaining weight or of becoming fat, or persistent behavior that interferes with weight gain; and a disturbance in self—perceived weight or shape. The individual main- tains a body weight that is below a minimally normal level for age, sex, developmental tra- jectory, and physical health (Criterion A). Individuals’ body weights frequently meet this criterion following a significant weight loss, but among children and adolescents, there may alternatively be failure to make expected weight gain or to maintain a normal devel- opmental trajectory (i.e., while growing in height) instead of weight loss. Criterion A requires that the individual’s weight be significantly low (i.e., less than minimally normal or, for children and adolescents, less than that minimally expected). Weight assessment can be challenging because normal weight range differs among indi- viduals, and different thresholds have been published defining thinness or underwzeight status. Body mass index (BMI; calculated as weight 1n kilograms /he1ght1n mezters 2') 1s a useful measure to assess body weight for height. For adults, a BMI of 18.5 kg/m 2has been employed by the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO) as the lower limit of2 normal body weight. Therefore, most adults with a BMI greater than or equal to 18.5 kg/m2 would not be considered tzo have a significantly low body weight. On the other hand, a BMI of lower than 17.0 kg/m 2has been considered by the WHO to indiczate moderate or severe thinness; therefore, an individual with a BMI less than 17. 0 kg/m 2would likely be considzered to have a significantly low weight An adult with a BMI between 17. 0 and 18.5 kg/mz, or even above 18.5 kg/m ,might be consid- ered to have a significantly low weight if clinical history or other physiological informa- tion supports this judgment. For children and adolescents, determining a BMI-for-age percentile is useful (see, e.g., the CDC BMI percentile calculator for children and teenagers. As for adults, it is not pos- sible to provide definitive standards for judging whether a child’s or an adolescent’s weight is significantly low, and variations in developmental trajectories among youth limit the utility of simple numerical guidelines. The CDC has used a BMI-for-age below the 5th per- centile as suggesting underweight; however, children and adolescents with a BMI above this benchmark may be judged to be significantly underweight in light of failure to main- tain their expected growth trajectory. In summary, in determining whether Criterion A is met, the clinician should consider available numerical guidelines, as well as the individual’s body build, weight history, and any physiological disturbances. Individuals with this disorder typically display an intense fear of gaining weight or of becoming fat (Criterion B). This intense fear of becoming fat is usually not alleviated by weight loss. In fact, concern about weight gain may increase even as weight falls. Younger individuals with anorexia nervosa, as well as some adults, may not recognize or acknowl- edge a fear of weight gain. In the absence of another explanation for the significantly low weight, clinician inference drawn from collateral history, observational data, physical and laboratory findings, or longitudinal course either indicating a fear of weight gain or sup- porting persistent behaviors that prevent it may be used to establish Criterion B. The experience and significance of body weight and shape are distorted in these indi- viduals (Criterion C). Some individuals feel globally overweight. Others realize that they are thin but are still concerned that certain body parts, particularly the abdomen, buttocks, and thighs, are ”too fat." They may employ a variety of techniques to evaluate their body size or weight, including frequent weighing, obsessive measuring of body parts, and per- sistent use of a mirror to check for perceived areas of ”fat.” The self-esteem of individuals with anorexia nervosa is highly dependent on their perceptions of body shape and weight. Weight loss is often viewed as an impressive achievement and a sign of extraordinary self- discipline, whereas weight gain is perceived as an unacceptable failure of self—control. Al- though some individuals with this disorder may acknowledge being thin, they often do not recognize the serious medical implications of their malnourished state. Often, the individual is brought to professional attention by family members after marked weight loss (or failure to make expected weight gains) has occurred. If individuals seek help on their own, it is usually because of distress over the somatic and psychological sequelae of starvation. It is rare for an individual with anorexia nervosa to complain of weight loss per se. In fact, individuals with anorexia nervosa frequently either lack insight into or deny the problem. It is therefore often important to obtain information from family members or other sources to evaluate the history of weight loss and other features of the illness. The semi-starvation of anorexia nervosa, and the purging behaviors sometimes associated with it, can result in significant and potentially life-threatening medical conditions. The nutritional compromise associated with this disorder affects most major organ systems and can produce a variety of disturbances. Physiological disturbances, including amenor- rhea and vital sign abnormalities, are common. While most of the physiological distur- bances associated with malnutrition are reversible with nutritional rehabilitation, some, including loss of bone mineral density, are often not completely reversible. Behaviors such as self—induced vomiting and misuse of laxatives, diuretics, and enemas may cause a num- ber of disturbances that lead to abnormal laboratory findings; however, some individuals with anorexia nervosa exhibit no laboratory abnormalities. When seriously underweight, many individuals with anorexia nervosa have depressive signs and symptoms such as depressed mood, social withdrawal, irritability, insomnia, and diminished interest in sex. Because these features are also observed in individuals without anorexia nervosa who are significantly undernourished, many of the depressive features may be secondary to the physiological sequelae of semi-starvation, although they may also be sufficiently severe to warrant an additional diagnosis of major depressive disorder. Obsessive-compulsive features, both related and unrelated to food, are often prominent. Most individuals with anorexia nervosa are preoccupied with thoughts of food. Some col- lect recipes or hoard food. Observations of behaviors associated with other forms of star- vation suggest that obsessions ancl compulsions related to food may be exacerbated by undemutrition. When individuals with anorexia nervosa exhibit obsessions and compul- sions that are not related to food, body shape, or weight, an additional diagnosis of obses- sive-compulsive disorder (OCD) may be warranted. Other features sometimes associated with anorexia nervosa include concerns about eating in public, feelings of ineffectiveness, a strong desire to control one’s environment, inflexible thinking, limited social spontaneity, and overly restrained emotional ex- pression. Compared with individuals with anorexia nervosa, restricting type, those with binge-eating/purging type have higher rates of impulsivity and are more likely to abuse alcohol and other drugs. A subgroup of individuals with anorexia nervosa show excessive levels of physical ac- tivity. Increases in physical activity often precede onset of the disorder, and over the course of the disorder increased activity accelerates weight loss. During treatment, exces- sive activity may be difficult to control, thereby jeopardizing weight recovery. Individuals with anorexia nervosa may misuse medications, such as by manipulating dosage, in order to achieve weight loss or avoid weight gain. Individuals with diabetes mellitus may omit or reduce insulin doses in order to minimize carbohydrate metabolism. The 12-month prevalence of anorexia nervosa among young females is approximately 0.4%. Less is known about prevalence among males, but anorexia nervosa is far less com— mon in males than in females, with clinical populations generally reflecting approximately a 10:1 female-to-male ratio. Anorexia nervosa commonly begins during adolescence or young adulthood. It rarely be- gins before puberty or after age 40, but cases of both early and late onset have been de- scribed. The onset of this disorder is often associated with a stressful life event, such as leaving home for college. The course and outcome of anorexia nervosa are highly variable. Younger individuals may manifest atypical features, including denying "fear of fat.” Older individuals more likely have a longer duration of illness, and their clinical presentation may include more signs and symptoms of long-standing disorder. Clinicians should not exclude anorexia nervosa from the differential diagnosis solely on the basis of older age. Many individuals have a period of changed eating behavior prior to full criteria for the disorder being met. Some individuals with anorexia nervosa recover fully after a single episode, with some exhibiting a fluctuating pattern of weight gain followed by relapse, and others experiencing a chronic course over many years. Hospitalization may be re— quired to restore weight and to address medical complications. Most individuals with an- orexia nervosa experience remission within 5 years of presentation. Among individuals admitted to hospitals, overall remission rates may be lower. The crude mortality rate (CMR) for anorexia nervosa is approximately 5% per decade. Death most commonly results from medical complications associated with the disorder itself or from suicide. Temperamental. Individuals who develop anxiety disorders or display obsessional traits in childhood are at increased risk of developing anorexia nervosa. Environmental. Historical and cross-cultural variability in the prevalence of anorexia nervosa supports its association with cultures and settings in which thinness is valued. Oc- cupations and avocations that encourage thinness, such as modeling and elite athletics, are also associated with increased risk. Genetic and physiological. There is an increased risk of anorexia nervosa and bulimia nervosa among first-degree biological relatives of individuals with the disorder. An in— creased risk of bipolar and depressive disorders has also been found among first-degree relatives of individuals with anorexia nervosa, particularly relatives of individuals with the binge—eating/purging type. Concordance rates for anorexia nervosa in monozygotic twins are significantly higher than those for dizygotic twins. A range of brain abnormali- tional magnetic resonance imaging, positron emission tomography). The degree to which these findings reflect changes associated with malnutrition versus primary abnormalities associated with the disorder is unclear. Anorexia nervosa occurs across culturally and socially diverse populations, although available evidence suggests cross-cultural variation in its occurrence and presentation. Anorexia ner- vosa is probably most prevalent in post-industrialized, high-income countries such as in the United States, many European countries, Australia, New Zealand, and Japan, but its incidence in most low- and middle-income countries is uncertain. Whereas the prevalence of anorexia nervosa appears comparatively low among Latinos, African Americans, and Asians in the United States, clinicians should be aware that mental health service utilization among individ- uals with an eating disorder is significantly lower in these ethnic groups and that the low rates may reflect an ascertainment bias. The presentation of weight concerns among individuals with eating and feeding disorders varies substantially across cultural contexts. The absence of an expressed intense fear of weight gain, sometimes referred to as ”fat phobia,” appears to be relatively more common in populations in Asia, where the rationale for dietary restriction is commonly related to a more culturally sanctioned complaint such as gastrointestinal discom- fort. Within the United States, presentations without a stated intense fear of weight gain may be comparatively more common among Latino groups. The following laboratory abnormalities may be observed in anorexia nervosa; their pres- ence may serve to increase diagnostic confidence. Hematology. Leukopenia is common, with the loss of all cell types but usually with ap- parent lymphocytosis. Mild anemia can occur, as well as thrombocytopenia and, rarely, bleeding problems. Serum chemistry. Dehydration may be reflected by an elevated blood urea nitrogen level. Hypercholesterolemia is common. Hepatic enzyme levels may be elevated. Hypo- magnesemia, hypozincemia, hypophosphatemia, and hyperamylasemia are occasionally observed. Self-induced vomiting may lead to metabolic alkalosis (elevated serum bicarbon- ate), hypochloremia, and hypokalernia; laxative abuse may cause a mild metabolic acidosis. Endocrine. Serum thyroxine (T4) levels are usually in the low-normal range; triiodothy- ronine (T3) levels are decreased, while reverse T3 levels are elevated. Females have low se- rum estrogen levels, whereas males have low levels of serum testosterone. Electrocardiography. Sinus bradycardia is common, and, rarely, arrhythmias are noted. Significant prolongation of the QTc interval is observed in some individuals. Bone mass. Low bone mineral density, with specific areas of osteopenia or osteoporo- sis, is often seen. The risk of fracture is significantly elevated. Electroencephalography. Diffuse abnormalities, reflecting a metabolic encephalopa- thy, may result from significant fluid and electrolyte disturbances. Resting energy expenditure. There is often a significant reduction in resting energy ex— penditure. Physical signs and symptoms. Many of the physical signs and symptoms of anorexia nervosa are attributable to starvation. Amenorrhea is commonly present and appears to be an indicator of physiological dysfunction. If present, amenorrhea is usually a conse- quence of the weight loss, but in a minority of individuals it may actually precede the weight loss. In prepubertal females, menarche may be delayed. In addition to amenorrhea, there may be complaints of constipation, abdominal pain, cold intolerance, lethargy, and excess energy. The most remarkable finding on physical examination is emaciation. Commonly, there is also significant hypotension, hypothermia, and bradycardia. Some individuals develop lanugo, a fine downy body hair. Some develop peripheral edema, especially during weight restoration or upon cessation of laxative and diuretic abuse. Rarely, petechiae or ecchymoses, usually on the extremities, may indicate a bleeding diathesis. Some individ- uals evidence a yellowing of the skin associated with hypercarotenemia. As may be seen in individuals with bulimia nervosa, individuals with anorexia nervosa who self-induce vomiting may have hypertrophy of the salivary glands, particularly the parotid glands, as well as dental enamel erosion. Some individuals may have scars or calluses on the dorsal surface of the hand from repeated contact with the teeth while inducing vomiting. Suicide risk is elevated in anorexia nervosa, with rates reported as 12 per 100,000 per year. Comprehensive evaluation of individuals with anorexia nervosa should include assess- ment of suicide—related ideation and behaviors as well as other risk factors for suicide, in— cluding a history of suicide attempt(s). Functional Consequences of Anorexia NervosaIndividuals with anorexia nervosa may exhibit a range of functional limitations associated with the disorder. While some individuals remain active in social and professional func- tioning, others demonstrate significant social isolation and / or failure to fulfill academic or career potential. Other possible causes of either significantly low body weight or significant weight loss should be considered in the differential diagnosis of anorexia nervosa, especially when the presenting features are atypical (e.g., onset after age 40 years). Medical conditions (e.g., gastrointestinal disease, hyperthyroidism, occult malignan- cies, and acquired immunodeficiency syndrome [AIDS]). Serious weight loss may oc- cur in medical conditions, but individuals with these disorders usually do not also mani- fest a disturbance in the way their body weight or shape is experienced or an intense fear of weight gain or persist in behaviors that interfere with appropriate weight gain. Acute weight loss associated with a medical condition can occasionally be followed by the onset or recurrence of anorexia nervosa, which can initially be masked by the comorbid medical condition. Rarely, anorexia nervosa develops after bariatric surgery for obesity. Major depressive disorder. In major depressive disorder, severe weight loss may occur, but most individuals with major depressive disorder do not have either a desire for exces- sive weight loss or an intense fear of gaining weight. Schizophrenia. Individuals with schizophrenia may exhibit odd eating behavior and oc- casionally experience significant weight loss, but they rarely show the fear of gaining weight and the body image disturbance required for a diagnosis of anorexia nervosa. Substance use disorders. Individuals with substance use disorders may experience low weight due to poor nutritional intake but generally do not fear gaining weight and do not manifest body image disturbance. Individuals who abuse substances that reduce appetite (e.g., cocaine, stimulants) and who also endorse fear of weight gain should be carefully evaluated for the possibility of comorbid anorexia nervosa, given that the substance use may represent a persistent behavior that interferes with weight gain (Criterion B). Social anxiety disorder (social phobia), obsessive-compulsive disorder, and body dys- morphic disorder. Some of the features of anorexia nervosa overlap with the criteria for social phobia, OCD, and body dysmorphic disorder. Specifically, individuals may feel hu- miliated or embarrassed to be seen eating in public, as in social phobia; may exhibit obses- sions and compulsions related to food, as in 0CD; or may be preoccupied with an imagined defect in bodily appearance, as in body dysmorphic disorder. If the individual with anorexia nervosa has social fears that are limited to eating behavior alone, the diagnosis of social pho- bia should not be made, but social fears unrelated to eating behavior (e.g., excessive fear of speaking in public) may warrant an additional diagnosis of social phobia. Similarly, an ad— ditional diagnosis of 0CD should be considered only if the individual exhibits obsessions and compulsions unrelated to food (e.g., an excessive fear of contamination), and an addi- tional diagnosis of body dysmorphic disorder should be considered only if the distortion is unrelated to body shape and size (e.g., preoccupation that one’s nose is too big). Bulimia nervosa. Individuals with bulimia nervosa exhibit recurrent episodes of binge eating, engage in inappropriate behavior to avoid weight gain (e.g., self—induced vomit- ing), and are overly concerned with body shape and weight. However, unlike individuals with anorexia nervosa, binge-eating/purging type, individuals with bulimia nervosa main— tain body weight at or above a minimally normal level. Avoidant/restrictive food intake disorder. Individuals with this disorder may exhibit significant weight loss or significant nutritional deficiency, but they do not have a fear of gaining weight or of becoming fat, nor do they have a disturbance in the way they expe- rience their body shape and weight. Bipolar, depressive, and anxiety disorders commonly co-occur with anorexia nervosa. Many individuals with anorexia nervosa report the presence of either an anxiety disorder or symptoms prior to onset of their eating disorder. OCD is described in some individuals with anorexia nervosa, especially those with the restricting type. Alcohol use disorder and other substance use disorders may also be comorbid with anorexia nervosa, especially among those with the binge-eating/purging type. Diagnostic Criteria 307.51 (F50.2)A. Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following: 1. Eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than what most individuals would eat in a similar period of time under similar circumstances. 2. A sense of lack of control over eating during the episode (e.g., a feeling that one cannot stop eating or control what or how much one is eating). B. Recurrent inappropriate compensatory behaviors in order to prevent weight gain, such as selt-induced vomiting; misuse of laxatives, diuretics, or other medications; fasting; or excessive exercise. C. The binge eating and inappropriate compensatory behaviors both occur, on average, at least once a week for 3 months. D. Self-evaluation is unduly influenced by body shape and weight. E. The disturbance does not occur exclusively during episodes of anorexia nervosa. Specify it:In partial remission: After full criteria for bulimia nervosa were previously met, some, but not all, of the criteria have been met for a sustained period of time. In full remission: After full criteria for bulimia nervosa were previously met. none of the criteria have been met for a sustained period of time. Specify current severity:The minimum level of severity is based on the frequency of inappropriate compensatory behaviors (see below). The level of severity may be increased to reflect other symptoms and the degree of functional disability. Mild: An average of 1—3 episodes of inappropriate compensatory behaviors per week. Moderate: An average 014—7 episodes of inappropriate compensatory behaviors per week. Severe: An average of 8—13 episodes of inappropriate compensatory behaviors per week. Extreme: An average of 14 or more episodes of inappropriate compensatory behav- iors per week. There are three essential features of bulimia nervosa: recurrent episodes of binge eating (Criterion A), recurrent inappropriate compensatory behaviors to prevent weight gain (Criterion B), and self—evaluation that is unduly influenced by body shape and weight (Criterion D). To qualify for the diagnosis, the binge eating and inappropriate compensa- tory behaviors must occur, on average, at least once per week for 3 months (Criterion C). An ”episode of binge eating” is defined as eating, in a discrete period of time, an amount of food that is definitely larger than most individuals would eat in a similar period of time under similar circumstances (Criterion A1). The context in which the eating occurs may affect the clinician’s estimation of whether the intake is excessive. For example, a quantity of food that might be regarded as excessive for a typical meal might be consid- ered normal during a celebration or holiday meal. A ”discrete period of time” refers to a limited period, usually less than 2 hours. A single episode of binge eating need not be re- stricted to one setting. For example, an individual may begin a binge in a restaurant and then continue to eat on returning home. Continual snacking on small amounts of food throughout the day would not be considered an eating binge. An occurrence of excessive food consumption must be accompanied by a sense of lack of control (Criterion A2) to be considered an episode of binge eating. An indicator of loss of control is the inability to refrain from eating or to stop eating once started. Some indi- viduals describe a dissociative quality during, or following, the binge-eating episodes. The impairment in control associated with binge eating may not be absolute; for example, an individual may continue binge eating while the telephone is ringing but will cease if a roommate or spouse unexpectedly enters the room. Some individuals report that their binge-eating episodes are no longer characterized by an acute feeling of loss of control but rather by a more generalized pattern of uncontrolled eating. If individuals report that they have abandoned efforts to control their eating, loss of control should be considered as present. Binge eating can also be planned in some instances. The type of food consumed during binges varies both across individuals and for a given individual. Binge eating appears to be characterized more by an abnormality in the amount of food consumed than by a craving for a specific nutrient. However, during binges, individuals tend to eat foods they would otherwise avoid. Individuals with bulimia nervosa are typically ashamed of their eating problems and attempt to conceal their symptoms. Binge eating usually occurs in secrecy or as inconspic- uously as possible. The binge eating often continues until the individual is uncomfortably, or even painfully, full. The most common antecedent of binge eating is negative affect. to body weight, body shape, and food; and boredom. Binge eating may minimize or mit- igate factors that precipitated the episode in the short-term, but negative self-evaluation and dysphoria often are the delayed consequences. Another essential feature of bulimia nervosa is the recurrent use of inappropriate com— pensatory behaviors to prevent weight gain, collectively referred to as purge behaviors or purging (Criterion B). Many individuals with bulimia nervosa employ several methods to compensate for binge eating. Vomiting is the most common inappropriate compensatory behavior. The immediate effects of vomiting include relief from physical discomfort and re- duction of fear of gaining weight. In some cases, vomiting becomes a goal in itself, and the individual will binge eat in order to vomit or will vomit after eating a small amount of food. Individuals with bulimia nervosa may use a variety of methods to induce vomiting, includ- ing the use of fingers or instruments to stimulate the gag reflex. Individuals generally become adept at inducing vomiting and are eventually able to vomit at will. Rarely, indi- viduals consume syrup of ipecac to induce vomiting. Other purging behaviors include the misuse of laxatives and diuretics. A number of other compensatory methods may also be used in rare cases. Individuals with bulimia nervosa may misuse enemas following epi- sodes of binge eating, but this is seldom the sole compensatory method employed. Individ- uals with this disorder may take thyroid hormone in an attempt to avoid weight gain. Individuals with diabetes mellitus and bulimia nervosa may omit or reduce insulin doses in order to reduce the metabolism of food consumed during eating binges. Individuals with bulimia nervosa may fast for a day or more or exercise excessively in an attempt to prevent weight gain. Exercise may be considered excessive when it significantly interferes with im- portant activities, when it occurs at inappropriate times or in inappropriate settings, or when the individual continues to exercise despite injury or other medical complications. Individuals with bulimia nervosa place an excessive emphasis on body shape or weight in their self-evaluation, and these factors are typically extremely important in determining self—esteem (Criterion D). Individuals with this disorder may closely resemble those with anorexia nervosa in their fear of gaining weight, in their desire to lose weight, and in the level of dissatisfaction with their bodies. However, a diagnosis of bulimia nervosa should not be given when the disturbance occurs only during episodes of anorexia nervosa (Cri- terion E). Individuals with bulimia nervosa typically are within the normal weight or overweight range (body mass index [BMI] 2 18.5 and < 30 in adults). The disorder occurs but is un- common among obese individuals. Between eating binges, individuals with bulimia ner- (”diet") foods while avoiding foods that they perceive to be fattening or likely to trigger a binge. Menstrual irregularity or amenorrhea often occurs among females with bulimia ner- vosa; it is uncertain whether such disturbances are related to weight fluctuations, to nu- tritional deficiencies, or to emotional distress. The fluid and electrolyte disturbances resulting from the purging behavior are sometimes sufficiently severe to constitute med- ically serious problems. Rare but potentially fatal complications include esophageal tears, gastric rupture, and cardiac arrhythmias. Serious cardiac and skeletal myopathies have been reported among individuals following repeated use of syrup of ipecac to induce vom- iting. Individuals who chronically abuse laxatives may become dependent on their use to stimulate bowel movements. Gastrointestinal symptoms are commonly associated with bulimia nervosa, and rectal prolapse has also been reported among individuals with this disorder. Twelve-month prevalence of bulimia nervosa among young females is 1%—1.5%. Point prevalence is highest among young adults since the disorder peaks in older adolescence and young adulthood. Less is known about the point prevalence of bulimia nervosa in males, but bulimia nervosa is far less common in males than it is in females, with an ap- proximately 10:1 female-to-male ratio. Bulimia nervosa commonly begins in adolescence or young adulthood. Onset before pu- berty or after age 40 is uncommon. The binge eating frequently begins during or after an episode of dieting to lose weight. Experiencing multiple stressful life events also can pre- cipitate onset of bulimia nervosa. clinic samples. The course may be chronic or intermittent, with periods of remission alternating with recurrences of binge eating. However, over longer-term follow-up, the symptoms of many individuals appear to diminish with or without treatment, although treatment clearly impacts outcome. Periods of remission longer than 1 year are associated with better long-term outcome. individuals with bulimia nervosa. The CMR (crude mortality rate) for bulimia nervosa is nearly 2% per decade. Diagnostic cross-over from initial bulimia nervosa to anorexia nervosa occurs in a mi- nority of cases (10%—15%). Individuals who do experience cross-over to anorexia nervosa commonly will revert back to bulimia nervosa or have multiple occurrences of cross-overs between these disorders. A subset of individuals with bulimia nervosa continue to binge eat but no longer engage in inappropriate compensatory behaviors, and therefore their symptoms meet criteria for binge-eating disorder or other specified eating disorder. Diag- nosis should be based on the current (i.e., past 3 months) clinical presentation. Temperamental. Weight concerns, low self—esteem, depressive symptoms, social anxi- ety disorder, and overanxious disorder of childhood are associated with increased risk for the development of bulimia nervosa. Environmental. Internalization of a thin body ideal has been found to increase risk for developing weight concerns, which in turn increase risk for the development of bulimia nervosa. Individuals who experienced childhood sexual or physical abuse are at increased risk for developing bulimia nervosa. Genetic and physiological. Childhood obesity and early pubertal maturation increase risk for bulimia nervosa. Familial transmission of bulimia nervosa may be present, as well as genetic vulnerabilities for the disorder. Course modifiers. Severity of psychiatric comorbidity predicts worse long—term outcome of bulimia nervosa. Bulimia nervosa has been reported to occur with roughly similar frequencies in most in- dustrialized countries, including the United States, Canada, many European countries, Australia, Japan, New Zealand, and South Africa. In clinical studies of bulimia nervosa in the United States, individuals presenting with this disorder are primarily white. However, the disorder also occurs in other ethnic groups and with prevalence comparable to esti- mated prevalences observed in white samples. Bulimia nervosa is far more common in females than in males. Males are especially under- represented in treatment-seeking samples, for reasons that have not yet been systemati- cally examined. No specific diagnostic test for bulimia nervosa currently exists. However, several labora- tory abnormalities may occur as a consequence of purging and may increase diagnostic certainty. These include fluid and electrolyte abnormalities, such as hypokalemia (which can provoke cardiac arrhythmias), hypochloremia, and hyponatremia. The loss of gastric acid through vomiting may produce a metabolic alkalosis (elevated serum bicarbonate), and the frequent induction of diarrhea or dehydration through laxative and diuretic abuse can cause metabolic acidosis. Some individuals with bulimia nervosa exhibit mildly ele— vated levels of serum amylase, probably reflecting an increase in the salivary isoenzyme. Physical examination usually yields no physical findings. However, inspection of the mouth may reveal significant and permanent loss of dental enamel, especially from lin- gual surfaces of the front teeth due to recurrent vomiting. These teeth may become chipped and appear ragged and ”moth—eaten.” There may also be an increased frequency of dental caries. In some individuals, the salivary glands, particularly the parotid glands, may become notably enlarged. Individuals who induce vomiting by manually stimulating the gag reflex may develop calluses or scars on the dorsal surface of the hand from re- peated contact with the teeth. Serious cardiac and skeletal myopathies have been reported among individuals following repeated use of syrup of ipecac to induce vomiting. Suicide risk is elevated in bulimia nervosa. Comprehensive evaluation of individuals with this disorder should include assessment of suicide-related ideation and behaviors as well as other risk factors for suicide, including a history of suicide attempts. Functional Consequences of Bulimia NervosaIndividuals with bulimia nervosa may exhibit a range of functional limitations associated with the disorder. A minority of individuals report severe role impairment, with the so— cial-life domain most likely to be adversely affected by bulimia nervosa. Anorexia nervosa, binge-eating/purging type. Individuals whose binge-eating behav- ior occurs only during episodes of anorexia nervosa are given the diagnosis anorexia ner- vosa, binge-eating/purging type, and should not be given the additional diagnosis of bulimia nervosa. For individuals with an initial diagnosis of anorexia nervosa who binge and purge but whose presentation no longer meets the full criteria for anorexia nervosa, binge-eating/purging type (e.g., when weight is normal), a diagnosis of bulimia ner- 3 months. Binge-eating disorder. Some individuals binge eat but do not engage in regular inap- propriate compensatory behaviors. In these cases, the diagnosis of binge-eating disorder should be considered. Kleine-Levin syndrome. In certain neurological or other medical conditions, such as Kleine-Levin syndrome, there is disturbed eating behavior, but the characteristic psycho- logical features of bulimia nervosa, such as overconcern with body shape and weight, are not present. Major depressive disorder, with atypical features. Overeating is common in major de- pressive disorder, with atypical features, but individuals with this disorder do not engage in inappropriate compensatory behaviors and do not exhibit the excessive concern with body shape and weight characteristic of bulimia nervosa. If criteria for both disorders are met, both diagnoses should be given. Borderline personality disorder. Binge-eating behavior is included in the impulsive be- havior criterion that is part of the definition of borderline personality disorder. If the cri- teria for both borderline personality disorder and bulimia nervosa are met, both diagnoses should be given. Comorbidity with mental disorders is common in individuals with bulimia nervosa, with morbidities. Comorbidity is not limited to any particular subset but rather occurs across a wide range of mental disorders. There is an increased frequency of depressive symptoms (e.g., low self-esteem) and bipolar and depressive disorders (particularly depressive dis- orders) in individuals with bulimia nervosa. In many individuals, the mood disturbance begins at the same time as or following the development of bulimia nervosa, and individ- uals often ascribe their mood disturbances to the bulimia nervosa. However, in some in- dividuals, the mood disturbance clearly precedes the development of bulimia nervosa. There may also be an increased frequency of anxiety symptoms (e.g., fear of social situa- tions) or anxiety disorders. These mood and anxiety disturbances frequently remit follow- ing effective treatment of the bulimia nervosa. The lifetime prevalence of substance use, particularly alcohol or stimulant use, is at least 30% among individuals with bulimia ner- vosa. Stimulant use often begins in an attempt to control appetite and weight. A substan- tial percentage of individuals with bulimia nervosa also have personality features that meet criteria for one or more personality disorders, most frequently borderline personality disorder. Diagnostic Criteria 307.51 (F50.8)A. Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following: 1. Eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than what most people would eat in a similar period of time under similar circumstances. 2. A sense of lack of control over eating during the episode (e.g., a feeling that one cannot stop eating or control what or how much one is eating). B. The binge-eating episodes are associated with three (or more) of the following: Eating much more rapidly than normal.Eating until feeling uncomfortably full.Eating large amounts of food when not feeling physically hungry. Eating alone because of feeling embarrassed by how much one is eating. Feeling disgusted with oneself, depressed, or very guilty aftenNard.@PWP.‘ . Marked distress regarding binge eating is present.. The binge eating occurs, on average, at least once a week for 3 months. . The binge eating is not associated with the recurrent use of inappropriate compensa- tory behavior as in bulimia nervosa and does not occur exclusively during the course of bulimia nervosa or anorexia nervosa. Specify it:In partial remission: After full criteria for binge-eating disorder were previously met, binge eating occurs at an average frequency of less than one episode per week for a sustained period of time. In full remission: After full criteria for binge-eating disorder were previously met, none of the criteria have been met for a sustained period of time. Specify current severity:The minimum level of severity is based on the frequency of episodes of binge eating (see below). The level of severity may be increased to reflect other symptoms and the degree of functional disability. Mild: 1—3 binge-eating episodes per week.Moderate: 4—7 binge-eating episodes per week.Severe: 8—13 binge-eating episodes per week.Extreme: 14 or more binge-eating episodes per week.The essential feature of binge-eating disorder is recurrent episodes binge eating that must occur, on average, at least once per week for 3 months (Criterion D). An ”episode of binge eating" is defined as eating, in a discrete period of time, an amount of food that is defi- nitely larger than most people would eat in a similar period of time under similar circum- stances (Criterion A1). The context in which the eating occurs may affect the clinician’s estimation of whether the intake is excessive. For example, a quantity of food that might be regarded as excessive for a typical meal might be considered normal during a celebration or holiday meal. A ”discrete period of time” refers to a limited period, usually less than 2 hours. A single episode of binge eating need not be restricted to one setting. For example, an individual may begin a binge in a restaurant and then continue to eat on returning home. Continual snacking on small amounts of food throughout the day would not be con- sidered an eating binge. An occurrence of excessive food consumption must be accompanied by a sense of lack of control (Criterion A2) to be considered an episode of binge eating. An indicator of loss of control is the inability to refrain from eating or to stop eating once started. Some indi- viduals describe a dissociative quality during, or following, the binge-eating episodes. The impairment in control associated with binge eating may not be absolute; for example, an individual may continue binge eating while the telephone is ringing but will cease if a roommate or spouse unexpectedly enters the room. Some individuals report that their binge-eating episodes are no longer characterized by an acute feeling of loss of control but rather by a more generalized pattern of uncontrolled eating. If individuals report that they have abandoned efforts to control their eating, loss of control may still be considered as present. Binge eating can also be planned in some instances. The type of food consumed during binges varies both across individuals and for a given individual. Binge eating appears to be characterized more by an abnormality in the amount of food consumed than by a craving for a specific nutrient. of the following features: eating much more rapidly than normal; eating until feeling un- comfortably full; eating large amounts of food when not feeling physically hungry; eating alone because of feeling embarrassed by how much one is eating; and feeling disgusted with oneself, depressed, or very guilty afterward (Criterion B). Individuals with binge—eating disorder are typically ashamed of their eating problems and attempt to conceal their symptoms. Binge eating usually occurs in secrecy or as incon- spicuously as possible. The most common antecedent of binge eating is negative affect. to body weight, body shape, and food; and boredom. Binge eating may minimize or mit- igate factors that precipitated the episode in the short-term, but negative self-evaluation and dysphoria often are the delayed consequences. Binge-eating disorder occurs in normal—weight/overweight and obese individuals. It is re- liably associated with overweight and obesity in treatment-seeking individuals. Never- theless, binge-eating disorder is distinct from obesity. Most obese individuals do not engage in recurrent binge eating. In addition, compared with weight-matched obese indi- viduals without binge-eating disorder, those with the disorder consume more calories in laboratory studies of eating behavior and have greater functional impairment, lower qual- ity of life, more subjective distress, and greater psychiatric comorbidity. Twelve-month prevalence of binge-eating disorder among U.S. adult (age 18 or older) fe- males and males is 1.6% and 0.8%, respectively. The gender ratio is far less skewed in binge- eating disorder than in bulimia nervosa. Binge-eating disorder is as prevalent among fe- males from racial or ethnic minority groups as has been reported for white females. The disorder is more prevalent among individuals seeking weight—loss treatment than in the general population. Little is known about the development of binge-eating disorder. Both binge eating and associated with increased body fat, weight gain, and increases in psychological symptoms. Binge eating is common in adolescent and college-age samples. Loss-of-control eating or episodic binge eating may represent a prodromal phase of eating disorders for some indi- viduals. Dieting follows the development of binge eating in many individuals with binge- eating disorder. (This is in contrast to bulimia nervosa, in which dysfunctional dieting usually precedes the onset of binge eating.) Binge-eating disorder typically begins in ad- olescence or young adulthood but can begin in later adulthood. Individuals with binge- eating disorder who seek treatment usually are older than individuals with either bulimia nervosa or anorexia nervosa who seek treatment. Remission rates in both natural course and treatment outcome studies are higher for binge-eating disorder than for bulimia nervosa or anorexia nervosa. Binge-eating disorder appears to be relatively persistent, and the course is comparable to that of bulimia nervosa in terms of severity and duration. Crossover from binge-eating disorder to other eating disorders is uncommon. Genetic and physiological. Binge—eating disorder appears to run in families, which may reflect additive genetic influences. Binge-eating disorder occurs with roughly similar frequencies in most industrialized countries, including the United States, Canada, many European countries, Australia, and New Zealand. In the United States, the prevalence of binge-eating disorder appears com- parable among non-Latino whites, Latinos, Asians, and African Americans. Functionai Consequences of Binge-Eating DisorderBinge-eating disorder is associated with a range of functional consequences, including so- cial role adjustment problems, impaired health-related quality of life and life satisfaction, increased medical morbidity and mortality, and associated increased health care utiliza- tion compared with body mass index (BMI)—matched control subjects. It may also be as- sociated with an increased risk for weight gain and the development of obesity. Bulimia nervosa. Binge-eating disorder has recurrent binge eating in common with bu- limia nervosa but differs from the latter disorder in some fundamental respects. In terms of clinical presentation, the recurrent inappropriate compensatory behavior (e.g., purging, driven exercise) seen in bulimia nervosa is absent in binge-eating disorder. Unlike in- dividuals with bulimia nervosa, individuals with binge-eating disorder typically do not show marked or sustained dietary restriction designed to influence body weight and shape between binge-eating episodes. They may, however, report frequent attempts at dieting. Binge-eating disorder also differs from bulimia nervosa in terms of response to treat- ment. Rates of improvement are consistently higher among individuals with binge-eating disorder than among those with bulimia nervosa. Obesity. Binge—eating disorder is associated with overweight and obesity but has several key features that are distinct from obesity. First, levels of overvaluation of body weight and shape are higher in obese individuals with the disorder than in those without the disorder. Second, rates of psychiatric comorbidity are significantly higher among obese individuals with the disorder compared with those without the disorder. Third, the long-term successful outcome of evidence-based psychological treatments for binge- eating disorder can be contrasted with the absence of effective long-term treatments for obesity. Bipolar and depressive disorders. Increases in appetite and weight gain are included in the criteria for major depressive episode and in the atypical features specifiers for de- pressive and bipolar disorders. Increased eating in the context of a major depressive epi- sode may or may not be associated with loss of control. If the full criteria for both disorders are met, both diagnoses can be given. Binge eating and other symptoms of disordered eat- ing are seen in association with bipolar disorder. If the full criteria for both disorders are met, both diagnoses should be given. Borderline personality disorder. Binge eating is included in the impulsive behavior cri- terion that is part of the definition of borderline personality disorder. If the full criteria for both disorders are met, both diagnoses should be given. Binge-eating disorder is associated with significant psychiatric comorbidity that is com- parable to that of bulimia nervosa and anorexia nervosa. The most common comorbid dis- orders are bipolar disorders, depressive disorders, anxiety disorders, and, to a lesser degree, substance use disorders. The psychiatric comorbidity is linked to the severity of binge eating and not to the degree of obesity. 307.59 (F50.8)This category applies to presentations in which symptoms characteristic of a feeding and eating disorder that cause clinically significant distress or impairment in social, occupation- al, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the feeding and eating disorders diagnostic class. The other spec- ified feeding or eating disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific feeding and eating disorder. This is done by recording “other specified feeding or eating disorder” followed by the specific reason (e.g., “bulimia nervosa of low frequency”). Examples of presentations that can be specified using the “other specified" designation include the following: 1. Atypical anorexia nervosa: All of the criteria for anorexia nervosa are met, except that despite significant weight loss, the individual’s weight is within or above the normal range. 2. Bulimia nervosa (of low frequency andlor limited duration): All of the criteria for bulimia nervosa are met, except that the binge eating and inappropriate compensatory behaviors occur, on average, less than once a week and/or for less than 3 months. 3. BInge—eating disorder (of low frequency andlor limited duration): All of the criteria for binge-eating disorder are met, except that the binge eating occurs, on average, less than once a week and/or for less than 3 months. 4. Purging disorder: Recurrent purging behavior to influence weight or shape (e.g., selt- induced vomiting; misuse of laxatives, diuretics, or other medications) in the absence of binge eating. 5. Night eating syndrome: Recurrent episodes of night eating, as manifested by eating after awakening from sleep or by excessive food consumption after the evening meal. There is awareness and recall of the eating. The night eating is not better explained by external influences such as changes in the individual’s sleep-wake cycle or by local so- cial norms. The night eating causes significant distress andlor impairment in function- ing. The disordered pattern of eating is not better explained by binge-eating disorder or another mental disorder, including substance use, and is not attributable to another medical disorder or to an effect of medication. 307.50 (F50.9)This category applies to presentations in which symptoms characteristic of a feeding and eating disorder that cause clinically significant distress or impairment in social, occupation- al, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the feeding and eating disorders diagnostic class. The unspecified feeding and eating disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific feeding and eating dis- order, and includes presentations in which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). Elimination disorders all involve the inappropriate elimination of urine or feces and are usually first diagnosed in childhood or adolescence. This group of disorders in- cludes enuresis, the repeated voiding of urine into inappropriate places, and encopresis, the repeated passage of feces into inappropriate places. Subtypes are provided to differentiate nocturnal from diurnal (i.e., during waking hours) voiding for enuresis and the presence or absence of constipation and overflow incontinence for encopresis. Although there are min- imum age requirements for diagnosis of both disorders, these are based on developmental age and not solely on chronological age. Both disorders may be voluntary or involuntary. Although these disorders typically occur separately, co-occurrence may also be observed. Diagnostic Criteria 307.6 (F98.0)A. Repeated voiding of urine into bed or clothes, whether involuntary or intentional. B. The behavior is clinically significant as manifested by either a frequency of at least twice a week for at least 3 consecutive months or the presence of clinically significant distress or impairment in social, academic (occupational), or other important areas of functioning. C. Chronological age is at least 5 years (or equivalent developmental level). D. The behavior is not attributable to the physiological effects of a substance (e.g., a di- uretic, an antipsychotic medication) or another medical condition (e.g., diabetes, spina bifida, a seizure disorder). Specify whether:Nocturnal only: Passage of urine only during nighttime sleep.Diurnal only: Passage of urine during waking hours.Nocturnal and diurnal: A combination of the two subtypes above. The nocturnal—only subtype of enuresis, sometimes referred to as monosymptomutic enu re- sis, is the most common subtype and involves incontinence only during nighttime sleep, typically during the first one—third of the night. The diurnal-only subtype occurs in the absence of noctumal enuresis and may be referred to simply as urinary incontinence. Indi- viduals with this subtype can be divided into two groups. Individuals with ”urge incon- tinence” have sudden urge symptoms and detrusor instability, whereas individuals with ”voiding postponement” consciously defer micturition urges until incontinence results. The nocturnal-and-diumal subtype is also known as nonmonosymptomutz'c enuresis.The essential feature of enuresis is repeated voiding of urine during the day or at night into bed or clothes (Criterion A). Most often the voiding is involuntary, but occasionally it may be intentional. To qualify for a diagnosis of enuresis, the voiding of urine must occur at tress or impairment in social, academic (occupational), or other important areas of func- tioning (Criterion B). The individual must have reached an age at which continence is expected (i.e., a chronological age of at least 5 years or, for children with developmental delays, a mental age of at least 5 years) (Criterion C). The urinary incontinence is not at- tributable to the physiological effects of a substance (e.g., a diuretic, an antipsychotic med- ication) or another medical condition (e.g., diabetes, spina bifida, a seizure disorder) (Criterion D). During nocturnal enuresis, occasionally the voiding takes place during rapid eye movement (REM) sleep, and the child may recall a dream that involved the act of urinating. During day- time (diurnal) enuresis, the child defers voiding until incontinence occurs, sometimes because of a reluctance to use the toilet as a result of social anxiety or a preoccupation with school or play activity. The enuretic event most commonly occurs in the early afternoon on school days and may be associated with symptoms of disruptive behavior. The enuresis commonly per- sists after appropriate treatment of an associated infection. The prevalence of enuresis is 5%—10% among 5-year-olds, 3%—5% among 10-year-olds, and around 1% among individuals 15 years or older. Two types of course of enuresis have been described: a ”primary" type, in which the indi— vidual has never established urinary continence, and a I“secondary” type, in which the dis- turbance develops after a period of established urinary continence. There are no differences in prevalence of comorbid mental disorders between the two types. By definition, primary enuresis begins at age 5 years. The most common time for the onset of secondary enuresis is between ages 5 and 8 years, but it may occur at any time. After age 5 years, the rate of spon- taneous remission is 5%—10% per year. Most children with the disorder become continent by adolescence, but in approximately 1% of cases the disorder continues into adulthood. Diurnal enuresis is uncommon after age 9 years. While occasional diurnal incontinence is not uncommon in middle childhood, it is substantially more common in those who also have persistent nocturnal enuresis. When enuresis persists into late childhood or adoles— cence, the frequency of incontinence may increase, whereas continence in early childhood is usually associated with a declining frequency of wet nights. Environmental. A number of predisposing factors for enuresis have been suggested, in- cluding delayed or lax toilet training and psychosocial stress. Genetic and physiological. Enuresis has been associated with delays in the develop- ment of normal circadian rhythms of urine production, with resulting nocturnal polyuria or abnormalities of central vasopressin receptor sensitivity, and reduced functional blad- der capacities with bladder hyperreactivity (unstable bladder syndrome). Nocturnal en- uresis is a genetically heterogeneous disorder. Heritability has been shown in family, twin, and segregation analyses. Risk for childhood nocturnal enuresis is approximately 3.6 times higher in offspring of enuretic mothers and 10.1 times higher in the presence of paternal urinary incontinence. The risk magnitudes for nocturnal enuresis and diurnal incontinence are similar. Enuresis has beeh reported in a variety of European, African, and Asian countries as well as in the United States. At a national level, prevalence rates are remarkably similar, and there is great similarity in the developmental trajectories found in different countries. There are very high rates of enuresis in orphanages and other residential institutions, likely related to the mode and environment in which toilet training occurs. Noctumal enuresis is more common in males. Diurnal incontinence is more common in fe- males. The relative risk of having a child who develops enuresis is greater for previously enuretic fathers than for previously enuretic mothers. Functional Consequences of EnuresisThe amount of impairment associated with enuresis is a function of the limitation on the child’s social activities (e.g., ineligibility for sleep-away camp) or its effect on the child’s self—esteem, the degree of social ostracism by peers, and the anger, punishment, and rejec- tion on the part of caregivers. Neurogenic bladder or another medical condition. The diagnosis of enuresis is not made in the presence of a neurogenic bladder or another medical condition that causes polyuria or urgency (e.g., untreated diabetes mellitus or diabetes insipidus) or during an acute urinary tract infection. However, a diagnosis is compatible with such conditions if urinary inconti- nence was regularly present prior to the development of another medical condition or if it per- sists after the institution of appropriate treatment of the medical condition. Medication side effects. Enuresis may occur during treatment with antipsychotic med- ications, diuretics, or other medications that may induce incontinence. In this case, the di- agnosis should not be made in isolation but may be noted as a medication side effect. However, a diagnosis of enuresis may be made if urinary incontinence was regularly pres- ent prior to treatment with the medication. Although most children with enuresis do not have a comorbid mental disorder, the prevalence of comorbid behavioral symptoms is higher in children with enuresis than in children without enuresis. Developmental delays, including speech, language, learning, and motor skills delays, are also present in a portion of children with enuresis. Encopresis, sleepwalking, and sleep terror disorder may be present. Urinary tract infections are more common in children with enuresis, especially the diurnal subtype, than in those who are continent. Diagnostic Criteria 307.7 (F98.1)A. Repeated passage of feces into inappropriate places (e.g., clothing, floor), whether in- voluntary or intentional. B. At least one such event occurs each month for at least 3 months. 0. Chronological age is at least 4 years (or equivalent developmental level). D. The behavior is not attributable to the physiological effects of a substance (e.g., laxa- tives) or another medical condition except through a mechanism involving constipation. Specify whether:With constipation and overflow incontinence: There is evidence of constipation on physical examination or by history. Without constipation and overflow incontinence: There is no evidence of constipa- tion on physical examination or by history. Feces in the with constipation and overflow incontinence subtype are characteristically (but not invariably) poorly formed, and leakage can be infrequent to continuous, occur- ring mostly during the day and rarely during sleep. Only part of the feces is passed during toileting, and the incontinence resolves after treatment of the constipation. In the without constipation and overflow incontinence subtype, feces are likely to be of normal form and consistency, and soiling is intermittent. Feces may be deposited in a prominent location. This is usually associated with the presence of oppositional defiant disorder or conduct disorder or may be the consequence of anal masturbation. Soiling without constipation appears to be less common than soiling with constipation. The essential feature of encopresis is repeated passage of feces into inappropriate places (e.g., clothing or floor) (Criterion A). Most often the passage is involuntary but occasionally may be intentional. The event must occur at least once a month for at least 3 months (Criterion B), and the chronological age of the child must be at least 4 years (or for children with developmental delays, the mental age must be at least 4 years) (Criterion C). The fecal incontinence must not be exclusively attributable to the physiological effects of a substance (e.g., laxatives) or another medical condition except through a mechanism involving constipation (Criterion D). When the passage of feces is involuntary rather than intentional, it is often related to constipation, impaction, and retention with subsequent overflow. The constipation may develop for psychological reasons (e.g., anxiety about defecating in a particular place, a more general pattern of anxious or oppositional behavior), leading to avoidance of defeca- tion. Physiological predispositions to constipation include ineffectual straining or paradox- ical defecation dynamics, with contraction rather than relaxation of the external sphincter or pelvic floor during straining for defecation. Dehydration associated with a febrile ill- ness, hypothyroidism, or a medication side effect can also induce constipation. Once con- stipation has developed, it may be complicated by an anal fissure, painful defecation, and further fecal retention. The consistency of the stool may vary. In some individuals the stool may be of normal or near-normal consistency. In other individuals—such as those with overflow incontinence secondary to fecal retention—it may be liquid. The child with encopresis often feels ashamed and may wish to avoid situations (e.g., camp, school) that might lead to embarrassment. The amount of impairment is a function of the effect on the child‘s self-esteem, the degree of social ostracism by peers, and the an- ger, punishment, and rejection on the part of caregivers. Smearing feces may be deliberate or accidental, resulting from the child’s attempt to clean or hide feces that were passed in— voluntarily. When the incontinence is clearly deliberate, features of oppositional defiant disorder or conduct disorder may also be present. Many children with encopresis and in the bladder or ureters that may lead to chronic urinary infections, the symptoms of which may remit with treatment of the constipation. It is estimated that approximately 1% of 5-year-olds have encopresis, and the disorder is more common in males than in females. Encopresis is not diagnosed until a child has reached a chronological age of at least 4 years (or for children with developmental delays, a mental age of at least 4 years). Inadequate, inconsistent toilet training and psychosocial stress (e.g., entering school, the birth of a sib- ling) may be predisposing factors. Two types of course have been described: a "primary” type, in which the individual has never established fecal continence, and a ”secondary" type, in which the disturbance develops after a period of established fecal continence. En- copresis can persist, with intermittent exacerbations, for years. Genetic and physiological. Painful defecation can lead to constipation and a cycle of with- holding behaviors that make encopresis more likely. Use of some medications (e.g., anti- convulsants, cough suppressants) may increase constipation and make encopresis more likely. In addition to physical examination, gastrointestinal imaging (e.g., abdominal radiograph) may be informative to assess retained stool and gas in the colon. Additional tests, such as barium enema and anorectal manography, may be used to help exclude other medical conditions, such as Hirschsprung’s disease. A diagnosis of encopresis in the presence of another medical condition is appropriate only if the mechanism involves constipation that cannot be explained by other medical condi- tions. Fecal incontinence related to other medical conditions (e.g., chronic diarrhea, spina bifida, anal stenosis) would not warrant a DSM-S diagnosis of encopresis. Urinary tract infections can be comorbid with encopresis and are more common in females. This category applies to presentations in which symptoms characteristic of an elimination disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the elimination disorders diagnostic class. The other specified elimination disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific elimination disorder. This is done by recording “other specified elimination disorder" followed by the specific reason (e.g., “Iow-frequency enuresis"). Coding note: Code 788.39 (N39.498) for other specified elimination disorder with urinary symptoms; 787.60 (R15.9) for other specified elimination disorder with fecal symptoms. This category applies to presentations in which symptoms characteristic of an elimination disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the elimination disorders diagnostic class. The unspecified elimination dis- order category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific elimination disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis (e.g., in emer- gency room settings). Coding note: Code 788.30 (R32) for unspecified elimination disorder with urinary symp— toms; 787.60 (R15.9) for unspecified elimination disorder with fecal symptoms. The DSM-5 C I ass Ifl cation of sleep-wake disorders is intended for use by general mental health and medical clinicians (those caring for adult, geriatric, and pediatric pa- tients). Sleep-wake disorders encompass 10 disorders or disorder groups: insomnia disor- der, hypersomnolence disorder, narcolepsy, breathing-related sleep disorders, circadian rhythm sleep-wake disorders, non—rapid eye movement (N REM) sleep arousal disorders, nightmare disorder, rapid eye movement (REM) sleep behavior disorder, restless legs syn- drome, and substance/medication-induced sleep disorder. Individuals with these disor- ders typically present with sleep-wake complaints of dissatisfaction regarding the quality, timing, and amount of sleep. Resulting daytime distress and impairment are core features shared by all of these sleep-wake disorders. The organization of this chapter is designed to facilitate differential diagnosis of sleep- wake complaints and to clarify when referral to a sleep specialist is appropriate for further assessment and treatment planning. The DSM-S sleep disorders nosology uses a simple, clinically useful approach, while also reflecting scientific advances in epidemiology, ge- netics, pathophysiology, assessment, and interventions research since DSM-IV. In some cases (e.g., insomnia disorder), a ”lumping” approach has been adopted, whereas in oth- ers (e.g., narcolepsy), a ”splitting” approach has been taken, reflecting the availability of validators derived from epidemiological, neurobiological, and interventions research. Sleep disorders are often accompanied by depression, anxiety, and cognitive changes that must be addressed in treatment planning and management. Furthermore, persistent sleep disturbances (both insomnia and excessive sleepiness) are established risk factors for the subsequent development of mental illnesses and substance use disorders. They may also represent a prodromal expression of an episode of mental illness, allowing the possi- bility of early intervention to preempt or to attenuate a full-blown episode. The differential diagnosis of sleep-wake complaints necessitates a multidimensional approach, with consideration of possibly coexisting medical and neurological conditions. Coexisting clinical conditions are the rule, not the exception. Sleep disturbances furnish a clinically useful indicator of medical and neurological conditions that often coexist with depression and other common mental disorders. Prominent among these comorbidities are breathing—related sleep disorders, disorders of the heart and lungs (e.g., congestive heart failure, chronic obstructive pulmonary disease), neurodegenerative disorders (e.g., Alzheimer’s disease), and disorders of the musculoskeletal system (e.g., osteoarthritis). sleep (e.g., prolonged apneas or electrocardiographic arrhythmias during REM sleep; con- fusional arousals in patients with dementing illness; seizures in persons with complex partial seizures). REM sleep behavior disorder is often an early indicator of neurodegen- erative disorders (alpha synucleinopathies) like Parkinson’s disease. For all of these rea- sons—related to differential diagnosis, clinical comorbidity, and facilitation of treatment planning—sleep disorders are included in DSM-S. The approach taken to the classification of sleep-wake disorders in DSM-S can be under- stood within the context of ”lumping versus splitting.” DSM-IV represented an effort to simplify sleep-wake disorders classification and thus aggregated diagnoses under broader, less differentiated labels. At the other pole, the International Classification of Sleep Disorders, 2nd Edition (ICSD—Z) elaborated numerous diagnostic subtypes. DSM-IV was prepared for use by mental health and general medical clinicians who are not experts in sleep medicine. ICSD-2 reflected the science and opinions of the sleep specialist community and was pre- pared for use by specialists. The weight of available evidence supports the superior performance characteristics (interrater reliability, as well as convergent, discriminant, and face validity) of simpler, less- differentiated approaches to diagnosis of sleep-wake disorders. The text accompanying each set of diagnostic criteria provides linkages to the corresponding disorders included in ICSD-Z. The DSM-5 sleep-Wake disorders classification also specifies corresponding non- psychiatric listings (e.g., neurology codes) from the International Classification of Diseases (ICD). The field of sleep disorders medicine has progressed in this direction since the publi- cation of DSM-IV. The use of biological validators is now embodied in the DSM—5 classi- fication of sleep-wake disorders, particularly for disorders of excessive sleepiness, such as narcolepsy; for breathing-related sleep disorders, for which formal sleep studies (i.e., polysomnography) are indicated; and for restless legs syndrome, which can often coexist with periodic limb movements during sleep, detectable via polysomnography. Diagnostic Criteria 780.52 (647.00)A. A predominant complaint of dissatisfaction with sleep quantity or quality, associated with one (or more) of the following symptoms: 1. Difficulty initiating sleep. (In children, this may manifest as difficulty initiating sleep without caregiver intervention.) 2. Difficulty maintaining sleep, characterized by frequent awakenings or problems re- turning to sleep after awakenings. (In children, this may manifest as difficulty return- ing to sleep without caregiver intervention.) 3. EarIy-morning awakening with inability to return to sleep. . The sleep disturbance causes clinically significant distress or impairment in social, oc- cupational, educational, academic, behavioral, or other important areas of functioning. . The sleep difficulty occurs at least 3 nights per week. . The sleep difficulty is present for at least 3 months. The sleep difficulty occurs despite adequate opportunity for sleep.The insomnia is not better explained by and does not occur exclusively during the course of another sleep-wake disorder (e.g., narcolepsy, a breathing-related sleep dis- order, a circadian rhythm sleep-wake disorder, a parasomnia). G. The insomnia is not attributable to the physiological eftects of a substance (e.g., a drug of abuse, a medication). H. Coexisting mental disorders and medical conditions do not adequately explain the pre- dominant complaint of insomnia. Specify it:With non-sleep disorder mental comorbidity, including substance use disordersCoding note: The code 780.52 (647.00) applies to all three specifiers. Code also the relevant associated mental disorder, medical condition, or other sleep disorder imme- diately after the code for insomnia disorder in order to indicate the association. Specify if:Episodic: Symptoms last at least 1 month but less than 3 months. Persistent: Symptoms last 3 months or longer.Recurrent: Two (or more) episodes within the space of 1 year. Note: Acute and short-term insomnia (i.e., symptoms lasting less than 3 months but oth- erwise meeting all criteria with regard to frequency, intensity, distress, and/or impairment) should be coded as an other specified insomnia disorder. Note. The diagnosis of insomnia disorder is given whether it occurs as an independent condition or is comorbid with another mental disorder (e.g., major depressive disorder), medical condition (e.g., pain), or another sleep disorder (e.g., a breathing-related sleep dis- order). For instance, insomnia may develop its own course with some anxiety and depres- sive features but in the absence of criteria being met for any one mental disorder. Insomnia may also manifest as a clinical feature of a more predominant mental disorder. Persistent insomnia may even be a risk factor for depression and is a common residual symptom af- ter treatment for this condition. With comorbid insomnia and a mental disorder, treatment may also need to target both conditions. Given these different courses, it is often impossi- ble to establish the precise nature of the relationship between these clinical entities, and this relationship may change over time. Therefore, in the presence of insomnia and a co— morbid disorder, it is not necessary to make a causal attribution between the two condi- tions. Rather, the diagnosis of insomnia disorder is made with concurrent specification of the clinically comorbid conditions. A concurrent insomnia diagnosis should only be con- sidered when the insomnia is sufficiently severe to warrant independent clinical attention; otherwise, no separate diagnosis is necessary. The essential feature of insomnia disorder is dissatisfaction with sleep quantity or quality with complaints of difficulty initiating or maintaining sleep. The sleep complaints are ac- companied by clinically significant distress or impairment in social, occupational, or other important areas of functioning. The sleep disturbance may occur during the course of an- other mental disorder or medical condition, or it may occur independently. Different manifestations of insomnia can occur at different times of the sleep period. Sleep— onset insomnia (or initial insomnia) involves difficulty initiating sleep at bedtime. Sleep mainte- the night. late insomnia involves early-morning awakening with an inability to return to sleep. Difficulty maintaining sleep is the most common single symptom of insomnia, followed by difficulty falling asleep, while a combination of these symptoms is the most common presen— tation overall. The specific type of sleep complaint often varies over time. Individuals who complain of difficulty falling asleep at one time may later complain of difficulty maintaining sleep, and vice versa. Symptoms of difficulty falling asleep and difficulty maintaining sleep can be quantified by the individual’s retrospective seIf—report, sleep diaries, or other methods, such as actigraphy or polysomnography, but the diagnosis of insomnia disorder is based on the individual’s subjective perception of sleep or a caretaker’s report. Nonrestoratz've sleep, a complaint of poor sleep quality that does not leave the individual rested upon awakening despite adequate duration, is a common sleep complaint usually occurring in association with difficulty initiating or maintaining sleep, or less frequently in isolation. This complaint can also be reported in association with other sleep disorders (e.g., breathing-related sleep disorder). When a complaint of nonrestorative sleep occurs in isolation (i.e., in the absence of difficulty initiating and/ or maintaining sleep) but all di- agnostic criteria with regard to frequency, duration, and daytime distress and impairments are otherwise met, a diagnosis of other specified insomnia disorder or unspecified insom- nia disorder is made. Aside from the frequency and duration criteria required to make the diagnosis, addi- tional criteria are useful to quantify insomnia severity. These quantitative criteria, while arbitrary, are provided for illustrative purpose only. For instance, difficulty initiating sleep is defined by a subjective sleep latency greater than 20—30 minutes, and difficulty maintain~ ing sleep is defined by a subjective time awake after sleep onset greater than 20—30 min- utes. Although there is no standard definition of early-morning awakening, this symptom involves awakening at least 30 minutes before the scheduled time and before total sleep time reaches 61/2 hours. It is essential to take into account not only the final awakening time but also the bedtime on the previous evening. Awakening at 4:00 A.M. does not have the same clinical significance in those who go to bed at 9:00 PM. as in those who go to bed at 1 1:00 PM. Such a symptom may also reflect an age-dependent decrease in the ability to sus- tain sleep or an age-dependent shift in the timing of the main sleep period. Insomnia disorder involves daytime impairments as well as nighttime sleep difficulties. These include fatigue or, less commonly, daytime sleepiness; the latter is more common among older individuals and when insomnia is comorbid with another medical condition (e.g., chronic pain) or sleep disorder (e.g., sleep apnea). Impairment in cognitive performance may include difficulties with attention, concentration and memory, and even with performing simple manual skills. Associated mood disturbances are typically described as irritability or mood lability and less commonly as depressive or anxiety symptoms. Not all individuals with nighttime sleep disturbances are distressed or have functional impairment. For example, sleep continuity is often interrupted in healthy older adults who nevertheless identify themselves as good sleepers. A diagnosis of insomnia disorder should be reserved for those individuals with significant daytime distress or impairment related to their nighttime sleep difficulties. Insomnia is often associated with physiological and cognitive arousal and conditioning factors that interfere with sleep. A preoccupation with sleep and distress due to the inabil— ity to sleep may lead to a vicious cycle: the more the individual strives to sleep, the more frustration builds and further impairs sleep. Thus, excessive attention and efforts to sleep, which override normal sleep-onset mechanisms, may contribute to the development of in- somnia. Individuals with persistent insomnia may also acquire maladaptive sleep habits (e.g., spending excessive time in bed; following an erratic sleep schedule; napping) and cognitions (e.g., fear of sleeplessness; apprehensions of daytime impairments; clock mon- itoring) during the course of the disorder. Engaging in such activities in an environment in which the individual has frequently spent sleepless nights may further compound the con- ditioned arousal and perpetuate sleep difficulties. Conversely, the individual may fall asleep more easily when not trying to do so. Some individuals also report better sleep when away from their own bedrooms and their usual routines. Insomnia may be accompanied by a variety of daytime complaints and symptoms, in- cluding fatigue, decreased energy, and mood disturbances. Symptoms of anxiety or de— pression that do not meet criteria for a specific mental disorder may be present, as well as an excessive focus on the perceived effects of sleep loss on daytime functioning. Individuals with insomnia may have elevated scores on self—report psychological or personality inventories with profiles indicating mild depression and anxiety, a worrisome cognitive style, an emotion-focused and intemalizing style of conflict resolution, and a so- matic focus. Patterns of neurocognitive impairment among individuals with insomnia dis- order are inconsistent, although there may be impairments in performing tasks of higher complexity and those requiring frequent changes in performance strategy. Individuals with insomnia often require more effort to maintain cognitive performance. Population-based estimates indicate that about one-third of adults report insomnia symp- toms, 10%—15% experience associated daytime impairments, and 6%—10% have symptoms that meet criteria for insomnia disorder. Insomnia disorder is the most prevalent of all sleep disorders. In primary care settings, approximately 10%—20% of individuals complain of significant insomnia symptoms. Insomnia is a more prevalent complaint among fe- males than among males, with a gender ratio of about 1.44:1. Although insomnia can be a symptom or an independent disorder, it is most frequently observed as a comorbid con- dition with another medical condition or mental disorder. For instance, 40%—50% of indi- viduals with insomnia also present with a comorbid mental disorder. The onset of insomnia symptoms can occur at any time during life, but the first episode is more common in young adulthood. Less frequently, insomnia begins in childhood or ad- olescence. In women, new-onset insomnia may occur during menopause and persist even after other symptoms (e.g., hot flashes) have resolved. Insomnia may have a late-life onset, which is often associated with the onset of other health-related conditions. Insomnia can be situational, persistent, or recurrent. Situational or acute insomnia usu- ally lasts a few days or a few weeks and is often associated with life events or rapid changes in sleep schedules or environment. It usually resolves once the initial precipitating event subsides. For some individuals, perhaps those more vulnerable to sleep disturbances, in- somnia may persist long after the initial triggering event, possibly because of conditioning factors and heightened arousal. The factors that precipitate insomnia may differ from those that perpetuate it. For example, an individual who is bedridden with a painful injury and has difficulty sleeping may then develop negative associations for sleep. Conditioned arousal may then persist and lead to persistent insomnia. A similar course may develop in the context of an acute psychological stress or a mental disorder. For instance, insomnia that occurs during an episode of major depressive disorder can become a focus of attention, with consequent negative conditioning, and persist even after resolution of the depressive episode. In some cases, insomnia may also have an insidious onset without any identifi- able precipitating factor. The course of insomnia may also be episodic, with recurrent episodes of sleep difficul- ties associated with the occurrence of stressful events. Chronicity rates range from 45% to 75% for follow-ups of 1—7 years. Even when the course of the insomnia has become chronic, there is night—to—night variability in sleep patterns, with an occasional restful night’s sleep interspersed with several nights of poor sleep. The characteristics of insomnia may also change over time. Many individuals with insomnia have a history of ”light” or easily disturbed sleep prior to onset of more persistent sleep problems. Insomnia complaints are more prevalent among middle-age and older adults. The type of insomnia symptom changes as a function of age, with difficulties initiating sleep being quently among middle-age and older individuals. Difficulties initiating and maintaining sleep can also occur in children and adolescents, but there are more limited data on prevalence, risk factors, and comorbidity during these developmental phases of the lifespan. Sleep difficulties in childhood can result from con- ditioning factors (e.g., a child who does not learn to fall asleep or return to sleep without the presence of a parent) or from the absence of consistent sleep schedules and bedtime routines. Insomnia in adolescence is often triggered or exacerbated by irregular sleep sched- ules (e.g., phase delay). In both children and adolescents, psychological and medical fac- tors can contribute to insomnia. The increased prevalence of insomnia in older adults is partly explained by the higher incidence of physical health problems with aging. Changes in sleep patterns associated with the normal developmental process must be differentiated from those exceeding age-related changes. Although polysomnography is of limited value in the routine evaluation of in- somnia, it may be more useful in the differential diagnosis among older adults because the etiologies of insomnia (e.g., sleep apnea) are more often identifiable in older individuals. While the risk and prognostic factors discussed in this section increase vulnerability to in- somnia, sleep disturbances are more likely to occur when predisposed individuals are ex- posed to precipitating events, such as major life events (e.g., illness, separation) or less severe but more chronic daily stress. Most individuals resume normal sleep patterns after the initial triggering event has disappeared, but others—perhaps those more vulnerable to insomnla—continue experiencing persistent sleep difficulties. Perpetuating factors such as poor sleep habits, irregular sleep scheduling, and the fear of not sleeping feed into the in- somnia problem and may contribute to a Vicious cycle that may induce persistent insomnia. Temperamental. Anxiety or worry-prone personality or cognitive styles, increased arousal predisposition, and tendency to repress emotions can increase vulnerability to insomnia. Environmental. Noise, light, uncomfortably high or low temperature, and high altitude may also increase vulnerability to insomnia. Genetic and physiological. Female gender and advancing age are associated with in- creased vulnerability to insomnia. Disrupted sleep and insomnia display a familial dispo- sition. The prevalence of insomnia is higher among monozygotic twins relative to dizygotic twins; it is also higher in first-degree family members compared with the general population. The extent to which this link is inherited through a genetic predisposition, learned by observations of parental models, or established as a by-product of another psy- chopathology remains undetermined. Course modifiers. Deleterious course modifiers include poor sleep hygiene practices (e.g., excessive caffeine use, irregular sleep schedules). Insomnia is a more prevalent complaint among females than among males, with first onset often associated with the birth of a new child or with menopause. Despite higher preva- lence among older females, polysomnographic studies suggest better preservation of sleep continuity and slow-wave sleep in older females than in older males. Polysomnography usually shows impairments of sleep continuity (e.g., increased sleep la- tency and time awake after sleep onset and decreased sleep efficiency [percentage of time in bed asleep] and may show increased stage 1 sleep and decreased stages 3 and 4 sleep. The severity of these sleep impairments does not always match the individual’s clinical presentation or subjective complaint of poor sleep, as individuals with insomnia often un- derestimate sleep duration and overestimate wakefulness relative to polysomnography. Quantitative electroencephalographic analyses may indicate that individuals with insom- nia have greater high—frequency electroencephalography power relative to good sleepers both around the sleep onset period and during non—rapid eye movement sleep, a feature suggestive of increased cortical arousal. Individuals with insomnia disorder may have a tive sleep laboratory measures compared with individuals without sleep disorders. Other laboratory measures show evidence, although not consistently, of increased arousal and a generalized activation of the hypothalamic-pituitary-adrenal axis (e.g., in- creased cortisol levels, heart rate variability, reactivity to stress, metabolic rate). In general, findings are consistent with the hypothesis that increased physiological and cognitive arousal plays a significant role in insomnia disorder. Individuals with insomnia disorder may appear either fatigued or haggard or, con- versely, overaroused and ”wired.” However, there are no consistent or characteristic abnormalities on physical examination. There may be an increased incidence of stress- related psychophysiological symptoms (e.g., tension headache, muscle tension or pain, gastrointestinal symptoms). Functional Consequences of Insomnia DisorderInterpersonal, social, and occupational problems may develop as a result of insomnia or excessive concern with sleep, increased daytime irritability, and poor concentration. De- creased attention and concentration are common and may be related to higher rates of ac- cidents observed in insomnia. Persistent insomnia is also associated with long-term consequences, including increased risks of major depressive disorder, hypertension, and quality of life; and increased economic burden. Normal sleep variations. Normal sleep duration varies considerably across individuals. sleep duration. Short sleepers differ from individuals with insomnia disorder by the lack of difficulty falling or staying asleep and by the absence of characteristic daytime symptoms (e.g., fatigue, concentration problems, irritability). However, some short sleepers may desire or attempt to sleep for a longer period of time and, by prolonging time in bed, may create an insomnia-like sleep pattern. Clinical insomnia also should be distinguished from normal, age—related sleep changes. Insomnia must also be distinguished from sleep deprivation due to inadequate opportunity or circumstance for sleep resulting, for example, from an emer- gency or from professional or family obligations forcing the individual to stay awake. Situational/acute insomnia. Situational/acute insomnia is a condition lasting a few days to a few weeks, often associated with life events or with changes in sleep schedules. These fere with social, personal, and occupational functioning. When such symptoms are fre- quent enough and meet all other criteria except for the 3-month duration, a diagnosis of other specified insomnia disorder or unspecified insomnia disorder is made. Delayed sleep phase and shift work types of circadian rhythm sleep-wake disorder. Individuals with the delayed sleep phase type of circadian rhythm sleep-wake disorder re- port sleep-onset insomnia only when they try to sleep at socially normal times, but they do delayed and coincide with their endogenous circadian rhythm. Shift work type differs from insomnia disorder by the history of recent shift work. Restless legs syndrome. Restless legs syndrome often produces difficulties initiating and maintaining sleep. However, an urge to move the legs and any accompanying unpleas- ant leg sensations are features that differentiate this disorder from insomnia disorder. Breathing-related sleep disorders. Most individuals with a breathing—related sleep dis- order have a history of loud snoring, breathing pauses during sleep, and excessive daytime sleepiness. Nonetheless, as many as 50% of individuals with sleep apnea may also report insomnia symptoms, a feature that is more common among females and older adults. Narcolepsy. Narcolepsy may cause insomnia complaints but is distinguished from in- somnia disorder by the predominance of symptoms of excessive daytime sleepiness, cat- aplexy, sleep paralysis, and sleep—related hallucinations. Parasomnias. Parasomnias are characterized by a complaint of unusual behavior or events during sleep that may lead to intermittent awakenings and difficulty resuming sleep. However, it is these behavioral events, rather than the insomnia per se, that dominate the clinical picture. Substance/medication-induced sleep disorder, insomnia type. Substance/medication— induced sleep disorder, insomnia type, is distinguished from insomnia disorder by the fact that a substance (i.e., a drug of abuse, a medication, or exposure to a toxin) is judged to be etiologically related to the insomnia (see ”Substance/Medication-Induced Sleep Disor- der” later in this chapter). For example, insomnia occurring only in the context of heavy coffee consumption would be diagnosed as caffeine-induced sleep disorder, insomnia type, with onset during intoxication. Insomnia is a common comorbidity of many medical conditions, including diabetes, cor- onary heart disease, chronic obstructive pulmonary disease, arthritis, fibromyalgia, and other chronic pain conditions. The risk relationship appears to be bidirectional: insomnia increases the risk of medical conditions, and medical problems increase the risk of insom- nia. The direction of the relationship is not always clear and may change over time; for this reason, comorbid insomnia is the preferred terminology in the presence of coexisting in- somnia with another medical condition (or mental disorder). Individuals with insomnia disorder frequently have a comorbid mental disorder, par- ticularly bipolar, depressive, and anxiety disorders. Persistent insomnia represents a risk factor or an early symptom of subsequent bipolar, depressive, anxiety, and substance use disorders. Individuals with insomnia may misuse medications or alcohol to help with nighttime sleep, anxiolytics to combat tension or anxiety, and caffeine or other stimulants to combat excessive fatigue. In addition to worsening the insomnia, this type of substance use may in some cases progress to a substance use disorder. Relationship to International Classification ofThere are several distinct insomnia phenotypes relating to the perceived source of the in- somnia that are recognized by the International Classification of Sleep Disorders, 2nd Edition (ICSD—Z). These include psychophysiologicul insomnia, idiopathic insomnia, sleep—stute mispercep- tion, and inadequate sleep hygiene. Despite their clinical appeal and heuristic value, there is limited evidence to support these distinct phenotypes. Diagnostic Criteria 780.54 (647.10)A. Self—reported excessive sleepiness (hypersomnolence) despite a main sleep period lasting at least 7 hours, with at least one of the following symptoms: 1. Recurrent periods of sleep or lapses into sleep within the same day. 2. A prolonged main sleep episode of more than 9 hours per day that is nonrestorative (i.e., unretreshing). 3. Difficulty being fully awake after abrupt awakening.B. The hypersomnolence occurs at least three times per week, for at least 3 months. C. The hypersomnolence is accompanied by significant distress or impairment in cogni- tive, social, occupational, or other important areas of functioning. D. The hypersomnolence is not better explained by and does not occur exclusively during the course of another sleep disorder (e.g., narcolepsy, breathing-related sleep disor- der, circadian rhythm sleep-wake disorder, or a parasomnia). E. The hypersomnolence is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication). F. Coexisting mental and medical disorders do not adequately explain the predominant complaint of hypersomnolence. Specify it:With mental disorder, including substance use disordersCoding note: The code 780.54 (647.10) applies to all three specifiers. Code also the relevant associated mental disorder, medical condition, or other sleep disorder im- mediately after the code for hypersomnolence disorder in order to indicate the associ- ation. Specify if:Acute: Duration of less than 1 month.Subacute: Duration of 1—3 months.Persistent: Duration of more than 3 months.Specify current severity:Specify severity based on degree of difficulty maintaining daytime alertness as manifested by the occurrence of multiple attacks of irresistible sleepiness within any given day occur- ring, for example, while sedentary, driving, visiting with friends, or working. Mild: Difficulty maintaining daytime alertness 1—2 days/week.Moderate: Difficulty maintaining daytime alertness 3—4 days/week.Severe: Difficulty maintaining daytime alertness 5—7 days/week.Hypersomnolence is a broad diagnostic term and includes symptoms of excessive quantity of sleep (e.g., extended nocturnal sleep or involuntary daytime sleep), deteriorated quality of wakefulness (i.e., sleep propensity during wakefulness as shown by difficulty awaken- ing or inability to remain awake when required), and sleep inertia (i.e., a period of im- paired performance and reduced vigilance following awakening from the regular sleep episode or from a nap) (Criterion A). Individuals with this disorder fall asleep quickly and have a good sleep efficiency (>90%). They may have difficulty waking up in the morning, sometimes appearing confused, combative, or ataxic. This prolonged impairment of alert- ness at the sleep—wake transition is often referred to as sleep inertia (i.e., sleep drunkenness). It can also occur upon awakening from a daytime nap. During that period, the individual appears awake, but there is a decline in motor dexterity, behavior may be very inappro- priate, and memory deficits, disorientation in time and space, and feelings of grogginess may occur. This period may last some minutes to hours. The persistent need for sleep can lead to automatic behavior (usually of a very routine, low-complexity type) that the individual carries out with little or no subsequent recall. For example, individuals may find themselves having driven several miles from where they thought they were, unaware of the ”automatic” driving they did in the preceding minutes. For some individuals with hypersomnolence disorder, the major sleep episode (for most individuals, nocturnal sleep) has a duration of 9 hours or more. However, the sleep is often nonrestorative and is followed by difficulty awakening in the morning. For other individ- uals with hypersomnolence disorder, the major sleep episode is of normal nocturnal sleep duration (6—9 hours). In these cases, the excessive sleepiness is characterized by several un- intentional daytime naps. These daytime naps tend to be relatively long (often lasting 1 hour or more), are experienced as nonrestorative (i.e., unrefreshing), and do not lead to improved alertness. Individuals with hypersomnolence have daytime naps nearly everyday regard- less of the nocturnal sleep duration. Subjective sleep quality may or may not be reported as good. Individuals typically feel sleepiness developing over a period of time, rather than experiencing a sudden sleep ”attack.” Unintentional sleep episodes typically occur in low- stimulation and low-activity situations (e.g., while attending lectures, reading, watching television, or driving long distances), but in more severe cases they can manifest in high- attention situations such as at work, in meetings, or at social gatherings. Nonrestorative sleep, automatic behavior, difficulties awakening in the morning, and sleep inertia, although common in hypersomnolence disorder, may also be seen in a variety of conditions, including narcolepsy. Approximately 80% of individuals with hyper- somnolence report that their sleep is nonrestorative, and as many have difficulties awak- ening in the morning. Sleep inertia, though less common (i.e., observed in 36%—50% of individuals with hypersomnolence disorder), is highly specific to hypersomnolence. Short naps (i.e., duration of less than 30 minutes) are often unrefreshing. Individuals with hy- persomnolence often appear sleepy and may even fall asleep in the clinician’s waiting area. A subset of individuals with hypersomnolence disorder have a family history of hy- persomnolence and also have symptoms of autonomic nervous system dysfunction, in— cluding recurrent vascular-type headaches, reactivity of the peripheral vascular system (Raynaud’s phenomenon), and fainting. Approximately 5%—10% of individuals who consult in sleep disorders clinics with com- plaints of daytime sleepiness are diagnosed as having hypersomnolence disorder. It is es- timated that about 1% of the European and US. general population has episodes of sleep inertia. Hypersomnolence occurs with relatively equal frequency in males and females. Hypersomnolence disorder has a persistent course, with a progressive evolution in the se— verity of symptoms. In most extreme cases, sleep episodes can last up to 20 hours. How- ever, the average nighttime sleep duration is around 9% hours. While many individuals with hypersomnolence are able to reduce their sleep time during working days, weekend and holiday sleep is greatly increased (by up to 3 hours). Awakenings are very difficult and accompanied by sleep inertia episodes in nearly 40% of cases. Hypersomnolence fully manifests in most cases in late adolescence or early adulthood, with a mean age at onset of 17—24 years. Individuals with hypersomnolence disorder are diagnosed, on average, 10—15 years after the appearance of the first symptoms. Pediatric cases are rare. Hypersomnolence has a progressive onset, with symptoms beginning between ages 15 and 25 years, with a gradual progression over weeks to months. For most individuals, the course is then persistent and stable, unless treatment is initiated. The development of other sleep disorders (e.g., breathing-related sleep disorder) may worsen the degree of sleepi- ness. Although hyperactivity may be one of the presenting signs of daytime sleepiness in children, voluntary napping increases with age. This normal phenomenon is distinct from hypersomnolence. Environmental. Hypersomnolence can be increased temporarily by psychological stress and alcohol use, but they have not been documented as environmental precipitating factors. Viral infections have been reported to have preceded or accompanied hyper- somnolence in about 10% of cases. Viral infections, such as HIV pneumonia, infectious mononucleosis, and Guillain-Barré syndrome, can also evolve into hypersomnolence within months after the infection. Hypersomnolence can also appear within 6—18 months follow- ing a head trauma. Genetic and physiological. Hypersomnolence may be familial, with an autosomal- dominant mode of inheritance. Nocturnal polysomnography demonstrates a normal to prolonged sleep duration, short sleep latency, and normal to increased sleep continuity. The distribution of rapid eye movement (REM) sleep is also normal. Sleep efficiency is mostly greater than 90%. Some individuals with hypersomnolence disorder have increased amounts of slow-wave sleep. The multiple sleep latency test documents sleep tendency, typically indicated by mean sleep latency values of less than 8 minutes. In hypersomnolence disorder, the mean sleep latency is typically less than 10 minutes and frequently 8 minutes or less. Sleep—onset REM periods (SOREMPs; i.e., the occurrence of REM sleep within 20 minutes of sleep onset) may be present but occur less than two times in four to five nap opportunities. Functional Consequences of Hypersomnoience DisorderThe low level of alertness that occurs while an individual fights the need for sleep can lead to reduced efficiency, diminished concentration, and poor memory during daytime activ- ities. Hypersomnolence can lead to significant distress and dysfunction in work and social relationships. Prolonged nocturnal sleep and difficulty awakening can result in difficulty in meeting morning obligations, such as arriving at work on time. Unintentional daytime sleep episodes can be embarrassing and even dangerous, if, for instance, the individual is driving or operating machinery when the episode occurs. Normative variation in sleep. ”Normal” sleep duration varies considerably in the general population. ”Long sleepers" (i.e., individuals who require a greater than average amount of sleep) do not have excessive sleepiness, sleep inertia, or automatic behavior when they obtain their required amount of nocturnal sleep. Sleep is reported to be refreshing. If social or occupational demands lead to shorter nocturnal sleep, daytime symptoms may appear. In hypersomnolence disorder, by contrast, symptoms of excessive sleepiness occur regard- less of nocturnal sleep duration. An inadequate amount of nocturnal sleep, or behaviorally induced insuflicient sleep syndrome, can produce symptoms of daytime sleepiness very similar to those of hypersomnolence. An average sleep duration of fewer than 7 hours per night strongly suggests inadequate nocturnal sleep, and an average of more than 9—10 hours of sleep per 24—hour period suggests hypersomnolence. Individuals with inadequate noctur- nal sleep typically ”catch up” with longer sleep durations on days when they are free from social or occupational demands or on vacations. Unlike hypersomnolence, insufficient nocturnal sleep is unlikely to persist unabated for decades. A diagnosis of hypersomno- lence disorder should not be made if there is a question regarding the adequacy of noctur- nal sleep duration. A diagnostic and therapeutic trial of sleep extension for 10—14 days can often clarify the diagnosis. Poor sleep quality and fatigue. Hypersomnolence disorder should be distinguished from excessive sleepiness related to insufficient sleep quantity or quality and fatigue (i.e., tiredness not necessarily relieved by increased sleep and unrelated to sleep quantity or quality). Excessive sleepiness and fatigue are difficult to differentiate and may overlap considerably. Breathing-related sleep disorders. Individuals with hypersomnolence and breathing- related sleep disorders may have similar patterns of excessive sleepiness. Breathing- related sleep disorders are suggested by a history of loud snoring, pauses in breathing during sleep, brain injury, or cardiovascular disease and by the presence of obesity, oro- pharyngeal anatomical abnormalities, hypertension, or heart failure on physical examina— tion. Polysomnographic studies can confirm the presence of apneic events in breathing— related sleep disorder (and their absence in hypersomnolence disorder). Circadian rhythm sleep-wake disorders. Circadian rhythm sleep-wake disorders are often characterized by daytime sleepiness. A history of an abnormal sleep-wake schedule (with shifted or irregular hours) is present in individuals with a circadian rhythm sleep- wake disorder. Parasomnias. Parasomnias rarely produce the prolonged, undisturbed nocturnal sleep or daytime sleepiness characteristic of hypersomnolence disorder. Other mental disorders. Hypersomnolence disorder must be distinguished from mental disorders that include hypersomnolence as an essential or associated feature. In particular, complaints of daytime sleepiness may occur in a major depressive episode, with atypical fea- tures, and in the depressed phase of bipolar disorder. Assessment for other mental disorders is essential before a diagnosis of hypersomnolence disorder is considered. A diagnosis of hyper- somnolence disorder can be made in the presence of another current or past mental disorder. Hypersomnolence can be associated with depressive disorders, bipolar disorders (during a depressive episode), and major depressive disorder, with seasonal pattern. Many individu- als with hypersomnolence disorder have symptoms of depression that may meet criteria for a depressive disorder. This presentation may be related to the psychosocial consequences of persistent increased sleep need. Individuals with hypersomnolence disorder are also at risk for substance-related disorders, particularly related to self—medication with stimulants. This general lack of specificity may contribute to very heterogeneous profiles among indi- viduals whose symptoms meet the same diagnostic criteria for hypersomnolence disorder. Neurodegenerative conditions, such as Alzheimer’s disease, Parkinson’s disease, and mul- tiple system atrophy, may also be associated with hypersomnolence. Relationship to Internatlonai Classification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-2), differentiates nine subtypes of ”hypersomnias of central origin,” including recurrent hypersomnia (Kleine- Levin syndrome).A. Recurrent periods of an irrepressible need to sleep. Iapsing into sleep, or napping oc- curring within the same day. These must have been occurring at least three times per week over the past 3 months. B. The presence of at least one of the following: 1. Episodes of cataplexy, defined as either (a) or (b), occurring at least a few times per month: a. In individuals with Iong-standing disease, brief (seconds to minutes) episodes of sudden bilateral loss of muscle tone with maintained consciousness that are precipitated by laughter or joking. b. In children or in individuals within 6 months of onset, spontaneous grimaces or jaw-opening episodes with tongue thrusting or a global hypotonia, without any obviods emotional triggers. 2. Hypocretin deficiency, as measured using cerebrospinal fluid (CSF) hypocretin-1 immunoreactivity values (less than or equal to one-third of values obtained in healthy subjects tested using the same assay, or less than or equal to 110 pg/mL). Low CSF levels of hypocretin-1 must not be obsen/ed in the context of acute brain injury, inflammation. or infection. 3. Nocturnal sleep polysomnography showing rapid eye movement (REM) sleep Ia- tency less than or equal to 15 minutes, or a multiple sleep latency test showing a mean sleep latency less than or equal to 8 minutes and two or more sleep-onset REM periods.Specify whether: 347.00 (647.419) Narcolepsy without cataplexy but with hypocretin deficiency: Cri- terion B requirements of low CSF hypocretin-1 levels and positive polysomnography/ multiple sleep latency test are met. but no cataplexy is present (Criterion B1 not met). 347.01 (647.411) Narcolepsy with cataplexy but without hypocretin deficiency:In this rare subtype (less than 5% of narcolepsy cases), Criterion B requirements of cataplexy and positive polysomnography/rnultiple sleep latency test are met, but CSF hypocretin-1 levels are normal (Criterion B2 not met). 347.00 (647.419) Autosomal dominant cerebellar ataxia, deafness, and narco- lepsy: This subtype is caused by exon 21 DNA (cytosine-5)-methyltransferase-1 mu- tations and is characterized by Iate-onset (age 30—40 years) narcolepsy (with low or intermediate CSF hypocretin-1 levels), deafness, cerebellar ataxia, and eventually de- mentia. 347.00 (647.419) Autosomal dominant narcolepsy, obesity, and type 2 diabetes: Narcolepsy, obesity, and type 2 diabetes and low CSF hypocretin-1 levels have been described in rare cases and are associated with a mutation in the myelin oligodendro- cyte glycoprotein gene. 347.10 (647.429) Narcolepsy secondary to another medical condition: This sub- type is for narcolepsy that develops secondary to medical conditions that cause infec- tious (e.g., Whipple‘s disease. sarcoidosis), traumatic, or tumoral destruction of hypocretin neurons. Coding note (for |CD-9-CM code 347.10 only): Code first the underlying medical con- dition (e.g., 040.2 Whipple’s disease; 347.10 narcolepsy secondary to Whipple’s dis- ease). Specify current severity:Mild: Infrequent cataplexy (less than once per week), need for naps only once or twice per day, and less disturbed nocturnal sleep. Moderate: Cataplexy once daily or every few days, disturbed nocturnal sleep, and need for multiple naps daily. Severe: Drug-resistant cataplexy with multiple attacks daily, nearly constant sleepi- ness, and disturbed nocturnal sleep (i.e., movements, insomnia, and vivid dreaming). In narcolepsy without cataplexy but with hypocretin deficiency, unclear ”cataplexy-like” symptoms may be reported (e.g., the symptoms are not triggered by emotions and are un- usually long lasting). In extremely rare cases, cerebrospinal fluid (CSF) levels of hypocre— tin-1 are low, and polysomnographic/multiple sleep latency test (MSLT) results are negative: repeating the test is advised before establishing the subtype diagnosis. In narco- lepsy with cataplexy but without hypocretin deficiency, test results for human leukocyte antigen (HLA) DQBl‘06202 may be negative. Seizures, falls of other origin, and conversion disorder (functional neurological symptom disorder) should be excluded. In narcolepsy secondary to infectious (e.g., Whipple’s disease, sarcoidosis), traumatic, or tumoral de- struction of hypocretin neurons, test results for HLA DQB1‘06202 may be positive and may result from the insult triggering the autoimmune process. In other cases, the destruction of hypocretin neurons may be secondary to trauma or hypothalamic surgery. Head trauma or infections of the central nervous system can, however, produce transitory decreases in CSF hypocretin-l levels without hypocretin cell loss, complicating the diagnosis. The essential features of sleepiness in narcolepsy are recurrent daytime naps or lapses into sleep. Sleepiness typically occurs daily but must occur at a minimum three times a week for at least 3 months (Criterion A). Narcolepsy generally produces cataplexy, which most commonly presents as brief episodes (seconds to minutes) of sudden, bilateral loss of mus- cle tone precipitated by emotions, typically laughing and joking. Muscles affected may include those of the neck, jaw, arms, legs, or whole body, resulting in head bobbing, jaw dropping, or complete falls. Individuals are awake and aware during cataplexy. To meet Criterion B1(a), cataplexy must be triggered by laughter or joking and must occur at least a few times per month when the condition is untreated or in the past. Cataplexy should not be confused with ”weakness” occurring in the context of athletic activities (physiological) or exclusively after unusual emotional triggers such as stress or anxiety (suggesting possible psychopathology). Episodes lasting hours or days, or those not triggered by emotions, are unlikely to be cataplexy, nor is rolling on the floor while laugh- ing hysterically. In children close to onset, genuine cataplexy can be atypical, affecting primarily the face, causing grimaces or jaw opening with tongue thrusting (”cataplectic faces”). Alter- natively, cataplexy may present as low-grade continuous hypotonia, yielding a wobbling walk. In these cases, Criterion Bl (b) can be met in children or in individuals within 6 months of a rapid onset. Narcolepsy-cataplexy nearly always results from the loss of hypothalamic hypocretin (orexin)—producing cells, causing hypocretin deficiency (less than or equal to one-third of control values, or 110 pg/mL in most laboratories). Cell loss is likely autoimmune, and ap- proximately 99% of affected individuals carry HLA-DQB1*06:02 (vs. 12%—38% of control subjects). Thus, checking for the presence of DQB1*06:02 prior to a lumbar puncture for eval- uation of CSF hypocretin-l immunoreactivity may be useful. Rarely, low CSF levels of hypo- cretin-I occur without cataplexy, notably in youths who may develop cataplexy later. CSF hypocretin-l measurement represents the gold standard, excepting associated severe con- ditions (neurological, inflammatory, infectious, trauma) that can interfere with the assay. confirm the diagnosis (Criterion B3). These tests must be performed after the individual has stopped all psychotropic medications, following 2 weeks of adequate sleep time (as documented with sleep diaries, actigraphy). Short rapid eye movement (REM) latency (sleep-onset REM period, REM latency less than or equal to 15 minutes) during polysom- nography is sufficient to confirm the diagnosis and meets Criterion B3. Alternatively, the MSLT result must be positive, showing a mean sleep latency of less than or equal to 8 min- utes and two or more sleep-onset REM periods in four to five naps. When sleepiness is severe, automatic behaviors may occur, with the individual continuing his or her activities in a semi-automatic, hazelike fashion without memory or conscious- ness. Approximately 20%—60% of individuals experience vivid hypnagogic hallucinations before or upon falling asleep or hypnopompic hallucinations just after awakening. These hallucinations are distinct from the less Vivid, nonhallucinatory dreamlike mentation at sleep onset that 6ccurs in normal sleepers. Nightmares and vivid dreaming are also fre- quent in narcolepsy, as is REM sleep behavior disorder. Approximately 20%—60% of indi- viduals experience sleep paralysis upon falling asleep or awakening, leaving them awake but unable to move or speak. However, many normal sleepers also report sleep paralysis, especially with stress or sleep deprivation. Nocturnal eating may occur. Obesity is com- mon. Nocturnal sleep disruption with frequent long or short awakenings is common and can be disabling. Individuals may appear sleepy or fall asleep in the waiting area or during clinical ex- amination. During cataplexy, individuals may slump in a chair and have slurred speech or drooping eyelids. If the clinician has time to check reflexes during cataplexy (most attacks are less than 10 seconds), reflexes are abolished—an important finding distinguishing gen— uine cataplexy from conversion disorder. Narcolepsy-cataplexy affects 0.02%—0.04% of the general population in most countries. Narcolepsy affects both genders, with possibly a slight male preponderance. Onset is typically in children and adolescents/young adults but rarely in older adults. Two peaks of onset are suggested, at ages 15—25 years and ages 30—35 years. Onset can be abrupt or progressive (over years). Severity is highest when onset is abrupt in children, and then decreases with age or with treatment, so that symptoms such as cataplexy can oc- casionally disappear. Abrupt onset in young, prepubescent children can be associated with obesity and premature puberty, a phenotype more frequently observed since 2009. In adolescents, onset is more difficult to pinpoint. Onset in adults is often unclear, with some individuals reporting having had excessive sleepiness since birth. Once the disorder has manifested, the course is persistent and lifelong. In 90% of cases, the first symptom to manifest is sleepiness or increased sleep, followed by cataplexy (within 1 year in 50% of cases, within 3 years in 85%). Sleepiness, hypnagogic hallucinations, vivid dreaming, and REM sleep behavior disorder (excessive movements during REM sleep) are early symptoms. Excessive sleep rapidly progresses to an inability to stay awake during the day, and to maintain good sleep at night, without a clear increase in total 24—hour sleep needs. In the first months, cataplexy may be atypical, especially in children. Sleep paralysis usually develops around puberty in children with prepubertal onset. Exacerbations of symptoms suggest lack of compliance with medications or devel- opment of a concurrent sleep disorder, notably sleep apnea. Young children and adolescents with narcolepsy often develop aggression or behav- ioral problems secondary to sleepiness and / or nighttime sleep disruption. Workload and social pressure increase through high school and college, reducing available sleep time at night. Pregnancy does not seem to modify symptoms consistently. After retirement, indi- viduals typically have more opportunity for napping, reducing the need for stimulants. Maintaining a regular schedule benefits individuals at all ages.Temperamental. Parasomnias, such as sleepwalking, bruxism, REM sleep behavior dis- order, and enuresis, may be more common in individuals who develop narcolepsy. Indi- viduals commonly report that they need more sleep than other family members. Environmental. Group A streptococcal throat infection, influenza (notably pandemicHINI 2009), or other winter infections are likely triggers of the autoimmune process, pro- ducing narcolepsy a few months later. Head trauma and abrupt changes in sleep-wake patterns (e.g., job changes, stress) may be additional triggers. Genetic and physiological. Monozygotic twins are 25%—32% concordant for narcolepsy. The prevalence of narcolepsy is 1%—2% in first-degree relatives (a 10- to 40-fold increase overall). Narcolepsy is strongly associated with DQBI‘06202 (99% vs. 12%—38% in control subjects of various ethnic groups; 25% in the general US. population). DQB1*03:01 in- creases, while DQB1‘O5:01, DQBI‘06:01, and DQB1*06:03 reduce risk in the presence of DQBI‘06202, but the effect is small. Polymorphisms within the T-cell receptor alpha gene and other immune modulating genes also modulate risk slightly. Narcolepsy has been described in all ethnic groups and in many cultures. Among African Americans, more cases present without cataplexy or with atypical cataplexy, complicating diagnosis, especially in the presence of obesity and obstructive sleep apnea. Functional imaging suggests impaired hypothalamic responses to humorous stimuli.Nocturnal polysomnography followed by an MSLT is used to confirm the diagnosis of narcolepsy, especially when the disorder is first being diagnosed and before treatment has begun, and if hypocretin deficiency has not been documented biochemically. The poly- somnography/MSLT should be performed after the individual is no longer taking any psychotropic drugs and after regular sleep-wake patterns, without shift work or sleep de- privation, have been documented. A sleep-onset REM period during the polysomnography (REM sleep latency less than or equal to 15 minutes) is highly specific (approximately 1% positive in control subjects) but moderately sensitive (approximately 50%). A positive MSLT result displays an aver- age sleep latency of less than or equal to 8 minutes, and sleep-onset REM periods in two or more naps on a four- or five-nap test. The MSLT result is positive in 90%—95% of individ- uals with narcolepsy versus 2%—4% of control subjects or individuals with other sleep dis- orders. Additional polysomnographic findings often include frequent arousals, decreased sleep efficiency, and increased stage 1 sleep. Periodic limb movements (found in about 40% of individuals with narcolepsy) and sleep apnea are often noted. Hypocretin deficiency is demonstrated by measuring CSF hypocretin-l immunoreac- tivity. The test is particularly useful in individuals with suspected conversion disorder and those without typical cataplexy, or in treatment-refractory cases. The diagnostic value of the test is not affected by medications, sleep deprivation, or circadian time, but the find- ings are uninterpretable when the individual is severely ill with a concurrent infection or head trauma or is comatose. CSF cytology, protein, and glucose are within normal range even when sampled within weeks of rapid onset. CSF hypocretin-l in these incipient cases is typically already very diminished or undetectable. Functional Consequences of NarcolepsyDriving and working are impaired, and individuals with narcolepsy should avoid jobs that place themselves (e.g., working with machinery) or others (e.g., bus driver, pilot) in danger. Once the narcolepsy is controlled with therapy, patients can usually drive, al- though rarely long distances alone. Untreated individuals are also at risk for social isola- tion and accidental injury to themselves or others. Social relations may suffer as these individuals strive to avert cataplexy by exerting control over emotions. Other hypersomnias. Hypersomnolence and narcolepsy are similar with respect to the degree of daytime sleepiness, age at onset, and stable course over time but can be distin- guished based on distinctive clinical and laboratory features. Individuals with hypersom- nolence typically have longer and less disrupted nocturnal sleep, greater difficulty awakening, more persistent daytime sleepiness (as opposed to more discrete ”sleep at- tacks" in narcolepsy), longer and less refreshing daytime sleep episodes, and little or no dreaming during daytime naps. By contrast, individuals with narcolepsy have cataplexy and recurrent intrusions of elements of REM sleep into the transition between sleep and wakefulness (e.g., sleep-related hallucinations and sleep paralysis). The MSLT typically demonstrates shorter sleep latencies (i.e., greater physiological sleepiness) as well as the presence of multiple sleep-onset REM periods in individuals with narcolepsy. Sleep deprivation and insufficient nocturnal sleep. Sleep deprivation and insufficient nocturnal sleep are common in adolescents and shift workers. In adolescents, difficulties falling asleep at night are common, causing sleep deprivation. The MSLT result may be positive if conducted while the individual is sleep deprived or while his or her sleep is phase delayed. Sleep apnea syndromes. Sleep apneas are especially likely in the presence of obesity. Because obstructive sleep apnea is more frequent than narcolepsy, cataplexy may be over- looked (or absent), and the individual is assumed to have obstructive sleep apnea unre- sponsive to usual therapies. Major depressive disorder. Narcolepsy or hypersomnia may be associated or confused with depression. Cataplexy is not present in depression. The MSLT results are most often normal, and there is dissociation between subjective and objective sleepiness, as measured by the mean sleep latency during the MSLT. Conversion disorder (functional neurological symptom disorder). Atypical features, such as long-lasting cataplexy or unusual triggers, may be present in conversion disorder (functional neurological symptom disorder). Individuals may report sleeping and dream- ing, yet the MSLT does not show the characteristic sleep-onset REM period. Full-blown, long-lasting pseudocataplexy may occur during consultation, allowing the examining physician enough time to verify reflexes, which remain intact. Attention-deficit/hyperactivity disorder or other behavioral problems. In children and adolescents, sleepiness can cause behavioral problems, including aggressiveness and in- attention, leading to a misdiagnosis of attention-deficit/hyperactivity disorder. Seizures. In young children, cataplexy can be misdiagnosed as seizures. Seizures are not commonly triggered by emotions, and when they are, the trigger is not usually laughing or joking. During a seizure, individuals are more likely to hurt themselves when falling. Sei- zures characterized by isolated atonia are rarely seen in isolation of other seizures, and they also have signatures on the electroencephalogram. Chorea and movement disorders. In young children, cataplexy can be misdiagnosed as chorea or pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections, especially in the context of a strep throat infection and high antistreptolysin 0 antibody levels. Some children may have an overlapping movement disorder close to on— set of the cataplexy. Schizophrenia. In the presence of florid and vivid hypnagogic hallucinations, individuals may think these experiences are real—a feature that suggests schizophrenia. Similarly, with stimulant treatment, persecutory delusions may develop. If cataplexy is present, the clinician should first assume that these symptoms are secondary to narcolepsy before con- sidering a co-occurring diagnosis of schizophrenia. Narcolepsy can co—occur with bipolar, depressive, and anxiety disorders, and in rare cases with schizophrenia. Narcolepsy is also associated with increased body mass index or obe- sity, especially when the narcolepsy is untreated. Rapid weight gain is common in young children with a sudden disease onset. Comorbid sleep apnea should be considered if there is a sudden aggravation of preexisting narcolepsy. Relationship to International Classification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-Z), differentiates five subtypes of narcolepsy. The breathing-related sleep disorders category encompasses three relatively distinct dis- orders: obstructive sleep apnea hypopnea, central sleep apnea, and sleep-related hypo- ventilation. Diagnostic Criteria 327.23 (647.33)A. Either (1) or (2): 1. Evidence by polysomnography of at least five obstructive apneas or hypopneas per hour of sleep and either of the following sleep symptoms: a. Nocturnal breathing disturbances: snoring, snorting/gasping, or breathing pauses during sleep. b. Daytime sleepiness, fatigue, or unrefreshing sleep despite sufficient opportuni- ties to sleep that is not better explained by another mental disorder (including a sleep disorder) and is not attributable to another medical condition. 2. Evidence by polysomnography 0t 15 or more obstructive apneas andlor hypopneas per hour of sleep regardless of accompanying symptoms. Specify current severity:Mild: Apnea hypopnea index is less than 15.Moderate: Apnea hypopnea index is 15-30.Severe: Apnea hypopnea index is greater than 30.Disease severity is measured by a count of the number of apneas plus hypopneas per hour of sleep (apnea hypopnea index) using polysomnography or other overnight monitoring. Overall severity is also informed by levels of nocturnal desaturation and sleep fragmen- tation (measured by brain cortical arousal frequency and sleep stages) and degree of as- sociated symptoms and daytime impairment. However, the exact number and thresholds may vary according to the specific measurement techniques used, and these numbers may change over time. Regardless of the apnea hypopnea index (count) per se, the disorder is considered to be more severe when apneas and hypopneas are accompanied by significant oxygen hemoglobin desaturation (e.g., when more than 10% of the sleep time is spent at desaturation levels of less than 90%) or when sleep is severely fragmented as shown by an elevated arousal index (arousal index greater than 30) or reduced stages in deep sleep (e.g., percentage stage N3 [slow-wave sleep] less than 5%). Obstructive sleep apnea hypopnea is the most common breathing-related sleep disorder. It is characterized by repeated episodes of upper (pharyngeal) airway obstruction (apneas and hypopneas) during sleep. Apnea refers to the total absence of airflow, and hypopnea re- fers to a reduction in airflow. Each apnea or hypopnea represents a reduction in breathing of at least 10 seconds in duration in adults or two missed breaths in children and is typi- cally associated with drops in oxygen saturation of 3% or greater and / or an electroenceph— alographic arousal. Both sleep-related (nocturnal) and wake-time symptoms are common. The cardinal symptoms of obstructive sleep apnea hypopnea are snoring and daytime sleepiness. Obstructive sleep apnea hypopnea in adults is diagnosed on the basis of polysom- nographic findings and symptoms. The diagnosis is based on symptoms of 1) nocturnal breathing disturbances (i.e., snoring, snorting/gasping, breathing pauses during sleep), or 2) daytime sleepiness, fatigue, or unrefreshing sleep despite sufficient opportunities to sleep that are not better explained by another mental disorder and not attributable to an- other medical condition, along with 3) evidence by polysomnography of five or more ob- structive apneas or hypopneas per hour of sleep (Criterion A1). Diagnosis can be made in the absence of these symptoms if there is evidence by polysomnography of 15 or more ob- structive apneas and / or hypopneas per hour of sleep (Criterion A2). Specific attention to disturbed sleep occurring in association with snoring or breathing pauses and physical findings that increase risk of obstructive sleep apnea hypopnea (e.g., central obesity, crowded pharyngeal airway, elevated blood pressure) is needed to reduce the chance of misdiagnosing this treatable condition. Because of the frequency of nocturnal awakenings that occur with obstructive sleep apnea hypopnea, individuals may report symptoms of insomnia. Other common, though non— specific, symptoms of obstructive sleep apnea hypopnea are heartburn, nocturia, morning headaches, dry mouth, erectile dysfunction, and reduced libido. Rarely, individuals may complain of difficulty breathing while lying supine or sleeping. Hypertension may occur in more than 60% of individuals with obstructive sleep apnea hypopnea. Obstructive sleep apnea hypopnea is a very common disorder, affecting at least 1%—2% of children, 2%—15% of middle-age adults, and more than 20% of older individuals. In the general community, prevalence rates of undiagnosed obstructive sleep apnea hypopnea may be very high in elderly individuals. Since the disorder is strongly associated with obe- sity, increases in obesity rates are likely to be accompanied by an increased prevalence of this disorder. Prevalence may be particularly high among males, older adults, and certain racial/ethnic groups. In adults, the male-to—female ratio of obstructive sleep apnea hypop- nea ranges from 2:1 to 4:1. Gender differences decline in older age, possibly because of an increased prevalence in females after menopause. There is no gender difference among prepubertal children. The age distribution of obstructive sleep apnea hypopnea likely follows a J-shaped distri- bution. There is a peak in children ages 3—8 years when the nasopharynx may be compro- mised by a relatively large mass of tonsillar tissue compared with the size of the upper airway. With growth of the airway and regression of lymphoid tissue during later child- hood, there is reduction in prevalence. Then, as obesity prevalence increases in midlife and females enter menopause, obstructive sleep apnea hypopnea again increases. The course in older age is unclear; the disorder may level off after age 65 years, but in other individ- uals, prevalence may increase with aging. Because there is some age dependency of the oc- currence of apneas and hypopneas, polysomnographic results must be interpreted in light of other clinical data. In particular, significant clinical symptoms of insomnia or hyper- somnia should be investigated regardless of the individual’s age. Obstructive sleep apnea hypopnea usually has an insidious onset, gradual progression, and persistent course. Typically the loud snoring has been present for many years, often since childhood, but an increase in its severity may lead the individual to seek evaluation. Weight gain may precipitate an increase in symptoms. Although obstructive sleep apnea hypopnea can occur at any age, it most commonly manifests among individuals ages 40—60 years. Over 4—5 years, the average apnea hypopnea index increases in adults and older individuals by ap— proximately two apneas/hypopneas per hour. The apnea hypopnea index is increased and in- cident obstructive sleep apnea hypopnea is greater among individuals who are older, who are male, or who have a higher baseline body mass index (BMI) or increase their BMI over time. Spontaneous resolution of obstructive sleep apnea hypopnea has been reported with weight loss, particularly after bariatric surgery. In children, seasonal variation in obstructive sleep ap- nea hypopnea has been observed, as has improvement with overall growth. In young children, the signs and symptoms of obstructive sleep apnea hypopnea may be more subtle than in adults, making diagnosis more difficult to establish. Polysomnography is useful in confirming diagnosis. Evidence of fragmentation of sleep on the polysomnogram may not be as apparent as in studies of older individuals, possibly because of the high homeo- static drive in young individuals. Symptoms such as snoring are usually parent—reported and thus have reduced sensitivity. Agitated arousals and unusual sleep postures, such as sleeping on the hands and knees, may occur. Nocturnal enuresis also may occur and should raise the suspicion of obstructive sleep apnea hypopnea if it recurs in a child who was previously dry at night. Children may also manifest excessive daytime sleepiness, although this is not as com- mon or pronounced as in adults. Daytime mouth breathing, difficulty in swallowing, and poor speech articulation are also common features in children. Children younger than 5 years more often present with nighttime symptoms, such as observed apneas or labored breathing, than with behavioral symptoms (i.e., the nighttime symptoms are more noticeable and more often bring the child to clinical attention). In children older than 5 years, daytime symptoms such as sleepiness and behavioral problems (e.g., impulsivity and hyperactivity), attention-deficit/ hyperactivity disorder, learning difficulties, and morning headaches are more often the focus of concern. Children with obstructive sleep apnea hypopnea also may present with failure to thrive and developmental delays. In young children, obesity is a less common risk factor, while delayed growth and "failure to thrive" may be present. Genetic and physiological. The major risk factors for obstructive sleep apnea hypopnea are obesity and male gender. Others include maxillary-mandibular retrognathia or micro— gnathia, positive family history of sleep apnea, genetic syndromes that reduce upper airway patency (e.g., Down’s syndrome, Treacher Collin’s syndrome), adenotonsillar hy- pertrophy (especially in young children), menopause (in females), and various endocrine syndromes (e.g., acromegaly). Compared with premenopausal females, males are at in- creased risk for obstructive sleep apnea hypopnea, possibly reflecting the influences of sex hormones on ventilatory control and body fat distribution, as well as because of gender differences in airway structure. Medications for mental disorders and medical conditions that tend to induce somnolence may worsen the course of apnea symptoms if these med- ications are not managed carefully. Obstructive sleep apnea hypopnea has a strong genetic basis, as evidenced by the sig- nificant familial aggregation of the apnea hypopnea index. The prevalence of obstructive sleep apnea hypbpnea is approximately twice as high among the first—degree relatives of probands with obstructive sleep apnea hypopnea as compared with members of control families. One-third of the variance in the apnea hypopnea index is explained by shared fa- milial factors. Although genetic markers with diagnostic or prognostic value are not yet available for use, eliciting a family history of obstructive sleep apnea hypopnea should in- crease the clinical suspicion for the disorder. There is a potential for sleepiness and fatigue to be reported differently across cultures. In some groups, snoring may be considered a sign of health and thus may not trigger con- cerns. Individuals of Asian ancestry may be at increased risk for obstructive sleep apnea hypopnea despite relatively low BMI, possibly reflecting the influence of craniofacial risk factors that narrow the nasopharynx. Polysomnography provides quantitative data on frequency of sleep-related respiratory disturbances and associated changes in oxygen saturation and sleep continuity. Polysom— labored breathing, partial obstructive hypoventilation with cyclical desaturations, hyper- capnia and paradoxical movements. Apnea hypopnea index levels as low as 2 are used to define thresholds of abnormality in children. Arterial blood gas measurements while the individual is awake are usually normal, but some individuals can have waking hypoxemia or hypercapnia. This pattern should alert the clinician to the possibility of coexisting lung disease or hypoventilation. Imaging procedures may reveal narrowing of the upper airway. Cardiac testing may show evidence of impaired ventricular function. Individuals with severe noctumal oxygen desaturation may also have el- evated hemoglobin or hematocrit values. Validated sleep measures (e.g., multiple sleep la— tency test [MSLT], maintenance of wakefulness test) may identify sleepiness. More than 50% of individuals with moderate to severe obstructive sleep apnea hypopnea report symptoms of daytime sleepiness. A twofold increased risk of occupational accidents has been reported in association with symptoms of snoring and sleepiness. Motor vehicle crashes also have been reported to be as much as sevenfold higher among individuals with elevated apnea hypopnea index values. Clinicians should be cognizant of state govern- ment requirements for reporting this disorder, especially in relationship to commercial drivers. Reduced scores on measures of health-related quality of life are common in individ- uals with obstructive sleep apnea hypopnea, with the largest decrements observed in the physical and vitality subscales. Primary snoring and other sleep disorders. Individuals with obstructive sleep apnea hypopnea must be differentiated from individuals with primary snoring (i.e., otherwise nography). Individuals with obstructive sleep apnea hypopnea may additionally report nocturnal gasping and choking. The presence of sleepiness or other daytime symptoms not explained by other etiologies suggests the diagnosis of obstructive sleep apnea hypop— nea, but this differentiation requires polysomnography. Definitive differential diagnosis between hypersomnia, central sleep apnea, sleep-related hypoventilation, and obstructive sleep apnea hypopnea also requires polysomnographic studies. Obstructive sleep apnea hypopnea must be differentiated from other causes of sleepi- ness, such as narcolepsy, hypersomnia, and circadian rhythm sleep disorders. Obstructive sleep apnea hypopnea can be differentiated from narcolepsy by the absence of cataplexy, sleep-related hallucinations, and sleep paralysis and by the presence of loud snoring, gasping during sleep, or observed apneas in sleep. Daytime sleep episodes in narcolepsy are characteristically shorter, more refreshing, and more often associated with dreaming. gen desaturation during nocturnal polysomnographic studies. Narcolepsy results in mul- tiple sleep-onset rapid eye movement (REM) periods during the MSLT. Narcolepsy, like obstructive sleep apnea hypopnea, may be associated with obesity, and some individuals have concurrent narcolepsy and obstructive sleep apnea hypopnea. A diagnosis of narco- lepsy does not exclude the diagnosis of obstructive sleep apnea hypopnea, as the two con- ditions may co—occur. Insomnia disorder. For individuals complaining of difficulty initiating or maintaining sleep or early-moming awakenings, insomnia disorder can be differentiated from obstruc- tive sleep apnea hypopnea by the absence of snoring and the absence of the history, signs, and symptoms characteristic of the latter disorder. However, insomnia and obstructive sleep apnea hypopnea may coexist, and if so, both disorders may need to be addressed concurrently to improve sleep. Panic attacks. Nocturnal panic attacks may include symptoms of gasping or choking during sleep that may be difficult to distinguish clinically from obstructive sleep apnea hy- popnea. However, the lower frequency of episodes, intense autonomic arousal, and lack of popnea. Polysomnography in individuals with nocturnal panic attacks does not reveal the typical pattern of apneas or oxygen desaturation characteristic of obstructive sleep apnea hypopnea. Individuals with obstructive sleep apnea hypopnea do not provide a history of daytime panic attacks. Attention-deficit/hyperactivity disorder. Attention—deficit/hyperactivity disorder in chil— dren may include symptoms of inattention, academic impairment, hyperactivity, and in- ternalizing behaviors, all of which may also be symptoms of childhood obstructive sleep apnea hypopnea. The presence of other symptoms and signs of childhood obstructive sleep apnea hypopnea (e.g., labored breathing or snoring during sleep and adenotonsillar hypertrophy) would suggest the presence of obstructive sleep apnea hypopnea. Obstruc- co-occur, and there may be causal links between them; therefore, risk factors such as en- larged tonsils, obesity, or a family history of sleep apnea may help alert the clinician to their co-occurrence. Substance/medication-induced insomnia or hypersomnia. Substance use and substance withdrawal (including medications) can produce insomnia or hypersomnia. A careful his- tory is usually sufficient to identify the relevant substance/medication, and follow-up shows improvement of the sleep disturbance after discontinuation of the substance/med- ication. In other cases, the use of a substance/ medication (e.g., alcohol, barbiturates, ben- zodiazepines, tobacco) has been shown to exacerbate obstructive sleep apnea hypopnea. An individual with symptoms and signs consistent with obstructive sleep apnea hypop- nea should receive that diagnosis, even in the presence of concurrent substance use that is exacerbating the condition. Systemic hypertension, coronary artery disease, heart failure, stroke, diabetes, and increased mortality are consistently associated with obstructive sleep apnea hypopnea. Risk esti- mates vary from 30% to as much as 300% for moderate to severe obstructive sleep apnea hypopnea. Evidence of pulmonary hypertension and right heart failure (e.g., cor pulmo- nale, ankle edema, hepatic congestion) are rare in obstructive sleep apnea hypopnea and pulmonary comorbidities. Obstructive sleep apnea hypopnea also may occur with in- creased frequency in association with a number of medical or neurological conditions (e.g., cerebrovascular disease, Parkinson’s disease). Physical findings reflect the co-occurrence of these conditions. As many as one-third of individuals referred for evaluation of obstructive sleep apnea hypopnea report symptoms of depression, with as many of 10% having depression scores consistent with moderate to severe depression. Severity of obstructive sleep apnea hypop- nea, as measured by the apnea hypopnea index, has been found to be correlated with se- verity of symptoms of depression. This association may be stronger in males than in females. Reiationship to International Classification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-Z), differentiates 11 sub- types of ”sleep-related breathing disorders,” including primary central sleep apnea, ob- structive sleep apnea, and sleep-related hypoventilation. A. Evidence by polysomnography of five or more central apneas per hour of sleep. B. The disorder is not better explained by another current sleep disorder. Specify whether: 327.21 (647.31) Idiopathic central sleep apnea: Characterized by repeated epi- sodes of apneas and hypopneas during sleep caused by variability in respiratory effort but without evidence of airway obstruction. 786.04 (R063) Cheyne-Stokes breathing: A pattern of periodic crescendo- a frequency of at least five events per hour, accompanied by frequent arousal. 780.57 (647.37) Central sleep apnea comorbid with opioid use: The pathogenesis of this subtype is attributed to the effects of opioids on the respiratory rhythm genera- tors in the medulla as well as the differential effects on hypoxic versus hypercapnic re- spiratory drive. Coding note (for 780.57 [647.37] code only): When an opioid use disorder is present, first code the opioid use disorder: 305.50 (F1 1.10) mild opioid use disorder or 304.00 (F1 1.20) moderate or severe opioid use disorder; then code 780.57 (647.37) central sleep apnea comorbid with opioid use. When an opioid use disorder is not present (e.g., after a one- time heavy use of the substance), code only 780.57 (647.37) central sleep apnea comor- bid with opioid use. Note: See the section “Diagnostic Features” in text.Specify current severity:Severity of central sleep apnea is graded according to the frequency of the breathing disturbances as well as the extent of associated oxygen desaturation and sleep frag- mentation that occur as a consequence of repetitive respiratory disturbances. Idiopathic central sleep apnea and Cheyne-Stokes breathing are characterized by increased gain of the ventilatory control system, also referred to as high loop gain, which leads to in- stability in ventilation and PaCOz levels. This instability is termed periodic breathing and can be recognized by hyperventilation alternating with hypoventilation. Individuals with these disorders typically have pC02 levels while awake that are slightly hypocapneic or normocapneic. Central sleep apnea may also manifest during initiation of treatment of ob- structive sleep apnea hypopnea or may occur in association with obstructive sleep apnea hypopnea syndrome (termed complex sleep apnea). The occurrence of central sleep apnea in association with obstructive sleep apnea is also considered to be due to high loop gain. In contrast, the pathogenesis of central sleep apnea comorbid with opioid use has been at- tributed to the effects of opioids on the respiratory rhythm generators in the medulla as well as to its differential effects on hypoxic versus hypercapneic respiratory drive. These individuals may have elevated pC02 levels while awake. Individuals receiving chronic methadone maintenance therapy have been noted to have increased somnolence and de- pression, although the role of breathing disorders associated with opioid medication in caus- ing these problems has not been studied. An increase in the central apnea index (i.e., number of central apneas per hour of sleep) re- flects an increase in severity of central sleep apnea. Sleep continuity and quality may be markedly impaired with reductions in restorative stages of non—rapid eye movement (REM) sleep (i.e., decreased slow-wave sleep [stage N3]). In individuals with severe Cheyne- Stokes breathing, the pattern can also be observed during resting wakefulness, a finding that is thought to be a poor prognostic marker for mortality. Central sleep apnea disorders are characterized by repeated episodes of apneas and hy- popneas during sleep caused by variability in respiratory effort. These are disorders of ventilatory control in which respiratory events occur in a periodic or intermittent pattern. Idiopathic central sleep apnea is characterized by sleepiness, insomnia, and awakenings due to dyspnea in association with five or more central apneas per hour of sleep. Central sleep apnea occurring in individuals with heart failure, stroke, or renal failure typically have a breathing pattern called Cheyne-Stokes breathing, which is characterized by a pattern of and hypopneas occurring at a frequency of at least five events per hour that are accompa- nied by frequent arousals. Central and obstructive sleep apneas may coexist; the ratio of central to obstructive apneas/hypopneas may be used to identify which condition is pre- dominant. Alterations in neuromuscular control of breathing can occur in association with med- ications or substances used in individuals with mental health conditions, which can cause or exacerbate impairments of respiratory rhythm and ventilation. Individuals taking these medications have a sleep-related breathing disorder that could contribute to sleep distur- bances and symptoms such as sleepiness, confusion, and depression. Specifically, chronic use of long—acting opioid medications is often associated with impairment of respiratory con- trol leading to central sleep apnea. Individuals with central sleep apnea hypopneas can manifest with sleepiness or insomnia. There can be complaints of sleep fragmentation, including awakening with dyspnea. Some individuals are asymptomatic. Obstructive sleep apnea hypopnea can coexist with Cheyne—Stokes breathing, and thus snoring and abruptly terminating apneas may be ob- served during sleep. The prevalence of idiopathic central sleep apnea is unknown but thought to be rare. The prevalence of Cheyne-Stokes breathing is high in individuals with depressed cardiac ven- tricular ejection fraction. In individuals with an ejection fraction of less than 45%, the prev- alence has been reported to be 20% or higher. The male-to-female ratio for prevalence is even more highly skewed toward males than for obstructive sleep apnea hypopnea. Prev- alence increases with age, and most patients are older than 60 years. Cheyne-Stokes breath- ing occurs in approximately 20% of individuals with acute stroke. Central sleep apnea comorbid with opioid use occurs in approximately 30% of individuals taking chronic opi- nance therapy. The onset of Cheyne-Stokes breathing appears tied to the development of heart failure. The Cheyne-Stokes breathing pattern is associated with oscillations in heart rate, blood pres- sure and oxygen desaturation, and elevated sympathetic nervous system activity that can promote progression of heart failure. The clinical significance of Cheyne-Stokes breathing in the setting of stroke is not known, but Cheyne-Stokes breathing may be a transient find- ing that resolves with time after acute stroke. Central sleep apnea comorbid with opioid use has been documented with chronic use (i.e., several months). Genetic and physiological. Cheyne-Stokes breathing is frequently present in individu- als with heart failure. The coexistence of atrial fibrillation further increases risk, as do older age and male gender. Cheyne—Stokes breathing is also seen in association with acute stroke and possibly renal failure. The underlying ventilatory instability in the setting of heart fail- ure has been attributed to increased ventilatory chemosensitivity and hyperventilation due to pulmonary vascular congestion and circulatory delay. Central sleep apnea is seen in individuals taking long-acting opioids. Physical findings seen in individuals with a Cheyne-Stokes breathing pattern relate to its risk factors. Findings consistent with heart failure, such as jugular venous distension, S3 heart sound, lung crackles, and lower extremity edema, may be present. Polysomnogra- phy is used to characterize the breathing characteristics of each breathing-related sleep disorder subtype. Central sleep apneas are recorded when periods of breathing cessation for longer than 10 seconds occur. Cheyne-Stokes breathing is characterized by a pattern of and hypopneas occurring at a frequency of at least five events per hour that are accompa- nied by frequent arousals. The cycle length of Cheyne-Stokes breathing (or time from end of one central apnea to the end of the next apnea) is about 60 seconds. Functional Consequences of Central Sleep ApneaIdiopathic central sleep apnea has been reported to cause symptoms of disrupted sleep, in- cluding insomnia and sleepiness. Cheyne-Stokes breathing with comorbid heart failure has been associated with excessive sleepiness, fatigue, and insomnia, although many in— dividuals may be asymptomatic. Coexistence of heart failure and Cheyne-Stokes breath- ing may be associated with increased cardiac arrhythmias and increased mortality or cardiac transplantation. Individuals with central sleep apnea comorbid with opioid use may present with symptoms of sleepiness or insomnia. disorders, other sleep disorders, and medical conditions and mental disorders that cause sleep fragmentation, sleepiness, and fatigue. This is achieved using polysomnography. Other breathing-related sleep disorders and sleep disorders. Central sleep apnea can be distinguished from obstructive sleep apnea hypopnea by the presence of at least five central apneas per hour of sleep. These conditions may co-occur, but central sleep apnea is considered to predominate when the ratio of central to obstructive respiratory events ex- ceeds 50%. Cheyne-Stokes breathing can be distinguished from other mental disorders, including other sleep disorders, and other medical conditions that cause sleep fragmentation, sleep- iness, and fatigue based on the presence of a predisposing condition (e.g., heart failure or stroke) and signs and polysomnographic evidence of the characteristic breathing pattern. from insomnia due to other medical conditions. High-altitude periodic breathing has a pattern that resembles Cheyne-Stokes breathing but has a shorter cycle time, occurs only at high altitude, and is not associated with heart failure. Central sleep apnea comorbid with opioid use can be differentiated from other types of breathing-related sleep disorders based on the use of long-acting opioid medications in conjunction with polysomnographic evidence of central apneas and periodic or ataxic breathing. It can be distinguished from insomnia due to drug or substance use based on polysomnographic evidence of central sleep apnea. Central sleep apnea disorders are frequently present in users of long-acting opioids, such as methadone. Individuals taking these medications have a sleep-related breathing disor- der that could contribute to sleep disturbances and symptoms such as sleepiness, confu- sion, and depression. While the individual is asleep, breathing patterns such as central apneas, periodic apneas, and ataxic breathing may be observed. Obstructive sleep apnea hypopnea may coexist with central sleep apnea, and features consistent with this condi- tion can also be present (see ”Obstructive Sleep Apnea Hypopnea" earlier in this chapter). Cheyne-Stokes breathing is more commonly observed in association with conditions that include heart failure, stroke, and renal failure and is seen more frequently in individuals with atrial fibrillation. Individuals with Cheyne-Stokes breathing are more likely to be older, to be male, and to have lower weight than individuals with obstructive sleep apnea hypopnea. A. Polysomnograpy demonstrates episodes of decreased respiration associated with eI- evated 002 levels. (Note: In the absence of objective measurement of 002, persistent low levels of hemoglobin oxygen saturation unassociated with apneic/hypopneic events may indicate hypoventilation.) B. The disturbance is not better explained by another current sleep disorder. Specify whether: 327.24 (647.34) Idiopathic hypoventilation: This subtype is not attributable to any readily identified condition. 327.25 (647.35) Congenital central alveolar hypoventilation: This subtype is a rare congenital disorder in which the individual typically presents in the perinatal period with shallow breathing, or cyanosis and apnea during sleep. 327.26 (647.36) Comorbid sleep-related hypoventilation: This subtype occurs as a consequence of a medical condition, such as a pulmonary disorder (e.g., interstitial lung disease, chronic obstructive pulmonary disease) or a neuromuscular or chest wall disorder (e.g., muscular dystrophies, postpolio syndrome, cervical spinal cord injury, kyphoscoliosis), or medications (e.g., benzodiazepines. opiates). It also occurs with obesity (obesity hypoventilation disorder). where it reflects a combination of increased work of breathing due to reduced chest wall compliance and ventilation-perfusion mis- match and variably reduced ventilatory drive. Such individuals usually are character- ized by body mass index of greater than 30 and hypercapnia during wakefulness (with a p002 of greater than 45), without other evidence of hypoventilation. Specify current severity:Severity is graded according to the degree of hypoxemia and hypercarbia present dur- ing sleep and evidence of end organ impairment due to these abnormalities (e.g., right- sided heart failure). The presence of blood gas abnormalities during wakefulness is an indicator of greater severity. Regarding obesity hypoventilation disorder, the prevalence of obesity hypoventilation in the general population is not known but is thought to be increasing in association with the increased prevalence of obesity and extreme obesity. Sleep-related hypoventilation can occur independently or, more frequently, comorbid with medical or neurological disorders, medication use, or substance use disorder. Al- though symptoms are not mandatory to make this diagnosis, individuals often report excessive daytime sleepiness, frequent arousals and awakenings during sleep, morning headaches, and insomnia complaints. Individuals with sleep—related hypoventilation can present with sleep-related complaints of insomnia or sleepiness. Episodes of orthopnea can occur in individuals with diaphragm weakness. Headaches upon awakening may be present. During sleep, episodes of shallow breathing may be observed, and obstructive sleep apnea hypopnea or central sleep apnea may coexist. Consequences of ventilatory insufficiency, including pulmonary hyperten- sion, cor pulmonale (right heart failure), polycythemia, and neurocognitive dysfunction, can be present. With progression of ventilatory insufficiency, blood gas abnormalities ex- tend into wakefulness. Features of the medical condition causing sleep-related hypoven- tilation can also be present. Episodes of hypoventilation may be associated with frequent arousals or bradytachycardia. Individuals may complain of excessive sleepiness and in- somnia or morning headaches or may present with findings of neurocognitive dysfunction or depression. Hypoventilation may not be present during wakefulness. Idiopathic sleep-related hypoventilation in adults is very uncommon. The prevalence of congenital central alveolar hypoventilation is unknown, but the disorder is rare. Comor- bid sleep-related hypoventilation (i.e., hypoventilation comorbid with other conditions, such as chronic obstructive pulmonary disease [COPD], neuromuscular disorders, or obe- sity) is more common. Idiopathic sleep-related hypoventilation is thought to be a slowly progressive disorder of respiratory impairment. When this disorder occurs comorbidly with other disorders (e.g., COPD, neuromuscular disorders, obesity), disease severity reflects the severity of the un- derlying condition, and the disorder progresses as the condition worsens. Complications such as pulmonary hypertension, cor pulmonale, cardiac dysrhythmias, polycythemia, neurocognitive dysfunction, and worsening respiratory failure can develop with increas- ing severity of blood gas abnormalities. Congenital central alveolar hypoventilation usually manifests at birth with shallow, erratic, or absent breathing. This disorder can also manifest during infancy, childhood, and adulthood because of variable penetrance of the PHOXZB mutation. Children with congenital central alveolar hypoventilation are more likely to have disorders of the auto- nomic nervous system, Hirschsprung’s disease, neural crest tumors, and characteristic box- shaped face (i.e., the face is short relative to its width). Environmental. Ventilatory drive can be reduced in individuals using central nervous system depressants, including benzodiazepines, opiates, and alcohol. Genetic and physiological. Idiopathic sleep-related hypoventilation is associated with reduced ventilatory drive due to a blunted chemoresponsiveness to C02 (reduced respi- ratory drive; i.e., “won’t breathe”), reflecting underlying neurological deficits in centers governing the control of ventilation. More commonly, sleep-related hypoventilation is co- morbid with another medical condition, such as a pulmonary disorder, a neuromuscular or chest wall disorder, or hypothyroidism, or with use of medications (e.g., benzodiaze- pines, opiates). In these conditions, the hypoventilation may be a consequence of in- creased work of breathing and / or impairment of respiratory muscle function (i.e., ”can’t breathe") or reduced respiratory drive (i.e., ”won’t breathe"). Neuromuscular disorders influence breathing through impairment of respiratory mo- tor innervation or respiratory muscle function. They include conditions such as amyo- trophic lateral sclerosis, spinal cord injury, diaphragmatic paralysis, myasthenia gravis, Lambert-Eaton syndrome, toxic or metabolic myopathies, postpolio syndrome, and Char- cot-Marie-Tooth syndrome. Congenital central alveolar hypoventilation is a genetic disorder attributable to muta- tions of PHOXZB, a gene that is crucial for the development of the embryonic autonomic nervous system and neural crest derivatives. Children with congenital central alveolar hy- poventilation show blunted ventilatory responses to hypercapnia, especially in non—rapid eye movement sleep. Gender distributions for sleep-related hypoventilation occurring in association with co- morbid conditions reflect the gender distributions of the comorbid conditions. For exam- ple, COPD is more frequently present in males and with increasing age. Sleep-related hypoventilation is diagnosed using polysomnography showing sleep-related hypoxemia and hypercapnia that is not better explained by another breathing-related sleep disorder. The documentation of increased arterial pCOz levels to greater than 55 mmHg 50 mmHg) during sleep in comparison to awake supine values, for 10 minutes or longer, is the gold standard for diagnosis. However, obtaining arterial blood gas determinations dur- ing sleep is impractical, and non-invasive measures of pC02 have not been adequately val- idated during sleep and are not widely used during polysomnography in adults. Prolonged and sustained decreases in oxygen saturation (oxygen saturation of less than 90% for more than 5 minutes with a nadir of at least 85%, or oxygen saturation of less than 90% for at least 30% of sleep time) in the absence of evidence of upper airway obstruction are often used as an indication of sleep-related hypoventilation; however, this finding is not specific, as there are other potential causes of hypoxemia, such as that due to lung disease. The consequences of sleep-related hypoventilation are related to the effects of chronic ex- posure to hypercapnia and hypoxemia. These blood gas derangements cause vasocon- striction of the pulmonary vasculature leading to pulmonary hypertension, which, if severe, can result in right-sided heart failure (cor pulmonale). Hypoxemia can lead to dys- function of organs such as the brain, blood, and heart, leading to outcomes such as cog- nitive dysfunction, polycythemia, and cardiac arrhythmias. Hypercapnia can depress ventilatory drive, leading to progressive respiratory failure. Other medical conditions affecting ventilation. In adults, the idiopathic variety of sleep- related hypoventilation is very uncommon and is determined by excluding the presence of lung diseases, skeletal malformations, neuromuscular disorders, and other medical and neurological disorders or medications that affect ventilation. Sleep—related hypoventila- tion must be distinguished from other causes of sleep-related hypoxemia, such as that due to lung disease. Other breathing-related sleep disorders. Sleep-related hypoventilation can be distin- features and findings on polysomnography. Sleep-related hypoventilation typically shows more sustained periods of oxygen desaturation rather that the periodic episodes seen in obstructive sleep apnea hypopnea and central sleep apnea. Obstructive sleep apnea hy- popnea and central sleep apnea also show a pattern of discrete episodes of repeated air- flow decreases that can be absent in sleep-related hypoventilation. Sleep-related hypoventilation often occurs in association with a pulmonary disorder (e.g., in- terstitial lung disease, COPD), with a neuromuscular or chest wall disorder (e.g., muscular dystrophies, post—polio syndrome, cervical spinal cord injury, obesity, kyphoscoliosis), or, most relevant to the mental health provider, with medication use (e.g., benzodiazepines, opi- ates). Congenital central alveolar hypoventilation often occurs in association with autonomic dysfunction and may occur in association with Hirschsprung’s disease. COPD, a disorder of lower airway obstruction usually associated with cigarette smoking, can result in sleep- related hypoventilation and hypoxemia. The presence of coexisting obstructive sleep apnea hypopnea is thought to exacerbate hypoxemia and hypercapnia during sleep and wakeful- ness. The relationship between congenital central alveolar hypoventilation and idiopathic sleep-related hypoventilation is unclear; in some individuals, idiopathic sleep-related hy— poventilation may represent cases of late-onset congenital central alveolar hypoventilation. Relationship to Internationai Ciassification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-Z), combines sleep- related hypoventilation and sleep-related hypoxemia under the category of sleep-related hypoventilation/hypoxemic syndromes. This approach to classification reflects the fre- quent co-occurrence of disorders that lead to hypoventilation and hypoxemia. In contrast, the classification used in DSM-5 reflects evidence that there are distinct sleep-related pathogenetic processes leading to hypoventilation. A. A persistent or recurrent pattern of sleep disruption that is primarily due to an alteration of the circadian system or to a misalignment between the endogenous circadian rhythm and the sleep—wake schedule required by an individual’s physical environment or social or professional schedule. B. The sleep disruption leads to excessive sleepiness or insomnia, or both. C. The sleep disturbance causes clinically significant distress or impairment in social, oc- cupational, and other important areas of functioning. Coding note: For |CD-9-CM. code 307.45 for all subtypes. For |CD-10-CM. code is based on subtype. Specify whether: 307.45 (647.21) Delayed sleep phase type: A pattern of delayed sleep onset and awakening times, with an inability to fall asleep and awaken at a desired or convention- ally acceptable earlier time. Specify if:Familial: A family history of delayed sleep phase is present. Specify if:Overlapping with non-24-hour sleep-wake type: Delayed sleep phase type may overlap with another circadian rhythm sleep-wake disorder, non-24-hour sleep-wake type. 307.45 (647.22) Advanced sleep phase type: A pattern of advanced sleep onset and awakening times, with an inability to remain awake or asleep until the desired or con- ventionally acceptable later sleep or wake times. Specify if:Familial: A family history of advanced sleep phase is present. 307.45 (647.23) Irregular sleep—wake type: A temporally disorganized sleep-wake pattern, such that the timing of sleep and wake periods is variable throughout the 24- hour period. 307.45 (647.24) Non-24-hour sleep—wake type: A pattern of sleep-wake cycles that is not synchronized to the 24-hour environment, with a consistent daily drift (usually to later and later times) of sleep onset and wake times. 307.45 (647.26) Shift work type: Insomnia during the major sleep period and/or ex- cessive sleepiness (including inadvertent sleep) during the major awake period asso- ciated with a shift work schedule (i.e., requiring unconventional work hours). 307.45 (647.20) Unspecified typeSpecify it:Episodic: Symptoms last at least 1 month but less than 3 months. Persistent: Symptoms last 3 months or longer.Recurrent: Two or more episodes occur within the space of 1 year. The delayed sleep phase type is based primarily on a history of a delay in the timing of the major sleep period (usually more than 2 hours) in relation to the desired sleep and wake— up time, resulting in symptoms of insomnia and excessive sleepiness. When allowed to set their own schedule, individuals with delayed sleep phase type exhibit normal sleep qual- ity and duration for age. Symptoms of sleep—onset insomnia, difficulty waking in the morning, and excessive early day sleepiness are prominent. Common associated features of delayed sleep phase type include a history of mental dis- orders or a concurrent mental disorder. Extreme and prolonged difficulty awakening with morning confusion is also common. Psychophysiological insomnia may develop as a re- sult of maladaptive behaviors that impair sleep and increase arousal because of repeated attempts to fall asleep at an earlier time. Prevalence of delayed sleep phase type in the general population is approximately 0.17% but appears to be greater than 7% in adolescents. Although the prevalence of familial de- layed sleep phase type has not been established, a family history of delayed sleep phase is present in individuals with delayed sleep phase type. Course is persistent, lasting longer than 3 months, with intermittent exacerbations through- out adulthood. Although age at onset is variable, symptoms begin typically in adolescence and early adulthood and persist for several months to years before diagnosis is estab- lished. Severity may decrease with age. Relapse of symptoms is common. Clinical expression may vary across the lifespan depending on social, school, and work obligations. Exacerbation is usually triggered by a change in work or school schedule that requires an early rise time. Individuals who can alter their work schedules to accommo- date the delayed circadian sleep and wake timing can experience remission of symptoms. Increased prevalence in adolescence may be a consequence of both physiological and be- havioral factors. Hormonal changes may be involved specifically, as delayed sleep phase is as- sociated with the onset of puberty. Thus, delayed sleep phase type in adolescents should be differentiated from the common delay in the tinting of circadian rhythms in this age group. In the familial form, the course is persistent and may not improve significantly with age. Genetic and physiological. Predisposing factors may include a longer than average cir- cadian period, changes in light sensitivity, and impaired homeostatic sleep drive. Some in- dividuals with delayed sleep phase type may be hypersensitive to evening light, which can serve as a delay signal to the circadian clock, or they may be hyposensitive to morning light such that its phase-advancing effects are reduced. Genetic factors may play a role in the pathogenesis of familial and sporadic forms of delayed sleep phase type, including mutations in circadian genes (e.g., PER3, CKIe). Confirmation of the diagnosis includes a complete history and use of a sleep diary or actigra— phy (i.e., a wrist-worn motion detector that monitors motor activity for prolonged periods and can be used as a proxy for sleep-wake patterns for at least 7 days). The period covered should include weekends, when social and occupational obligations are less strict, to ensure that the individual exhibits a consistently delayed sleep-wake pattern. Biomarkers such as salivary dim light melatonin onset should be obtained only when the diagnosis is unclear. Functional Consequences of Delayed Sleep Phase TypeExcessive early day sleepiness is prominent. Extreme and prolonged difficulty awakening with morning confusion (i.e., sleep inertia) is also common. The severity of insomnia and pends on the occupational and social demands on the individual. Normative variations in sleep. Delayed sleep phase type must be distinguished from personal, social, or occupational distress (most commonly seen in adolescents and young adults). Other sleep disorders. Insomnia disorder and other circadian rhythm sleep-wake dis- orders should be included in the differential. Excessive sleepiness may also be caused by other sleep disturbances, such as breathing-related sleep disorders, insomnias, sleep- related movement disorders, and medical, neurological, and mental disorders. Overnight polysomnography may help in evaluating for other comorbid sleep disorders, such as sleep apnea. The circadian nature of delayed sleep phase type, however, should differen- tiate it from other disorders with similar complaints. Delayed sleep phase type is strongly associated with depression, personality disorder, and somatic symptom disorder or illness anxiety disorder. In addition, comorbid sleep disor- ders, such as insomnia disorder, restless legs syndrome, and sleep apnea, as well as depres- sive and bipolar disorders and anxiety disorders, can exacerbate symptoms of insomnia and excessive sleepiness. Delayed sleep phase type may overlap with another circadian rhythm sleep-wake disorder, non-24—hour sleep-wake type. Sighted individuals with non- 24-hour sleep-wake type disorder commonly also have a history of delayed circadian sleep phase. Advanced sleep phase type may be documented with the specified ”familial." Although the prevalence of familial advanced sleep phase type has not been established, a family history of advanced sleep phase is present in individuals with advanced sleep phase type. In this type, specific mutations demonstrate an autosomal dominant mode of inheritance. In the familial form, onset of symptoms may occur earlier (during childhood and early adulthood), the course is persistent, and the severity of symptoms may increase with age. Advanced sleep phase type is characterized by sleep-wake times that are several hours earlier than desired or conventional times. Diagnosis is based primarily on a history of an advance in the timing of the major sleep period (usually more than 2 hours) in relation to the desired sleep and wake—up time, with symptoms of early morning insomnia and ex- cessive daytime sleepiness. When allowed to set their schedule, individuals with ad- vanced sleep phase type will exhibit normal sleep quality and duration for age. Individuals with advanced sleep phase type are ”morning types,” having earlier sleep— wake times, with the timing of circadian biomarkers such as melatonin and core body tem- perature rhythms occurring 2—4 hours earlier than normal. When required to keep a con- ventional schedule requiring a delay of bedtime, these individuals will continue to have an early rise time, leading to persistent sleep deprivation and daytime sleepiness. Use of hyp- notics or alcohol to combat sleep-maintenance insomnia and stimulants to reduce daytime sleepiness may lead to substance abuse in these individuals. The estimated prevalence of advanced sleep phase type is approximately 1% in middle— age adults. Sleep-wake times and circadian phase advance in older individuals, probably accounting for increased prevalence in this population. Onset is usually in late adulthood. In the familial form, onset can be earlier. The course is typ- ically persistent, lasting more than 3 months, but the severity may increase depending on work and social schedules. The advanced sleep phase type is more common in older adults. Clinical expression may vary across the lifespan depending on social, school, and work obligations. Individuals who can alter their work schedules to accommodate the advanced circadian sleep and wake timing can experience remission of symptoms. Increasing age tends to advance the sleep phase, however, it is unclear whether the common age-associ- ated advanced sleep phase type is due solely to a change in circadian timing (as seen in the familial form) or also to age-related changes in the homeostatic regulation of sleep, result- ing in earlier awakening. Severity, remission, and relapse of symptoms suggest lack of ad- herence to behavioral and environmental treatments designed to control sleep and wake structure and light exposure. Environmental. Decreased late afternoon/early evening exposure to light and / or expo- sure to early morning light due to early morning awakening can increase the risk of ad- vanced sleep phase type by advancing circadian rhythms. By going to bed early, these individuals are not exposed to light in the phase delay region of the curve, resulting in per- petuation of advanced phase. In familial advanced sleep phase type, a shortening of the endogenous circadian period can result in an advanced sleep phase, although circadian pe- riod does not appear to systematically decrease with age. Genetic and physiological. Advanced sleep phase type has demonstrated an autoso- mal dominant mode of inheritance, including a PERZ gene mutation causing hypophos- phorylation of the PERZ protein and a missense mutation in CKI. vances to light than do Caucasians, possibly increasing the risk for development of ad- vanced sleep phase type in this population. A sleep diary and actigraphy may be used as diagnostic markers, as described earlier for delayed sleep phase type. Functional Consequences of Advanced Sieep Phase TypeExcessive sleepiness associated with advanced sleep phase can have a negative effect on cognitive performance, social interaction, and safety. Use of wake-promoting agents to substance abuse. Other sleep disorders. Behavioral factors such as irregular sleep schedules, voluntary early awakening, and exposure to light in the early morning should be considered, partic- ularly in older adults. Careful attention should be paid to rule out other sleep-wake dis- orders, such as insomnia disorder, and other mental disorders and medical conditions that can cause early morning awakening. Depressive and bipolar disorders. Because early morning awakening, fatigue, and sleep- iness are prominent features of major depressive disorder, depressive and bipolar disor- ders must also be considered. Medical conditions and mental disorders with the symptom of early morning awakening, such as insomnia, can co-occur with the advance sleep phase type. The diagnosis of irregular sleep-wake type is based primarily on a history of symptoms of insomnia at night (during the usual sleep period) and excessive sleepiness (napping) dur- ing the day. Irregular sleep-wake type is characterized by a lack of discernable sleep-wake circadian rhythm. There is no major sleep period, and sleep is fragmented into at least three periods during the 24—hour day. Individuals with irregular sleep-wake type typically present with insomnia or excessive sleepiness, depending on the time of day. Sleep and wake periods across 24 hours are frag- mented, although the longest sleep period tends to occur between 2:00 AM. and 6:00 AM. and is usually less than 4 hours. A history of isolation or reclusion may occur in association with the disorder and contribute to the symptoms via a lack of external stimuli to help en— train a normal pattern. Individuals or their caregivers report frequent naps throughout the day. Irregular sleep-wake type is most commonly associated with neurodegenerative dis- orders, such as major neurocognitive disorder, and many neurodevelopmental disorders in children. Prevalence of irregular sleep-wake type in the general population is unknown. The course of irregular sleep-wake type is persistent. Age at onset is variable, but the dis- order is more common in older adults. Temperamental. Neurodegenerative disorders, such as Alzheimer’s disease, Parkinson’s disease, and Huntington’s disease, and neurodevelopmental disorders in children in- crease the risk for irregular sleep-wake type. Environmental. Decreased exposure to environmental light and structured daytime ac- tivity can be associated with a low-amplitude circadian rhythm. Hospitalized individuals are especially prone to such weak external entraining stimuli, and even outside the hospi— tal setting, individuals with major neurocognitive disorder (i.e., dementia) are exposed to significantly less bright light. irregular sleep-wake pattern.Lack of a clearly discernible major sleep and wake period in irregular sleep-wake type re- sults in insomnia or excessive sleepiness, depending on the time of day. Disruption of the caregiver’s sleep also often occurs and is an important consideration. Normative variations in sleep. Irregular sleep-wake type should be distinguished from a voluntary irregular sleep-wake schedule and poor sleep hygiene, which can result in in- somnia and excessive sleepiness. Other medical conditions and mental disorders. Other causes of insomnia and daytime sleepiness, including comorbid medical conditions and mental disorders or medication, should be considered. Irregular sleep-wake type is often comorbid with neurodegenerative and neurodevelop- mental disorders, such as major neurocognitive disorder, intellectual disability (intellec- tual developmental disorder), and traumatic brain injury. It is also comorbid with other medical conditions and mental disorders in which there is social isolation and/ or lack of light and structured activities. The diagnosis of non-24-hour sleep-wake type is based primarily on a history of symp- toms of insomnia or excessive sleepiness related to abnormal synchronization between the 24-hour light—dark cycle and the endogenous circadian rhythm. Individuals typically pre- sent with periods of insomnia, excessive sleepiness, or both, which alternate with short asymptomatic periods. Starting with the asymptomatic period, when the individual's sleep phase is aligned to the external environment, sleep latency will gradually increase and the individual will complain of sleep-onset insomnia. As the sleep phase continues to drift so that sleep time is now in the daytime, the individual will have trouble staying awake during the day and will complain of sleepiness. Because the circadian period is not aligned to the external 24—hour environment, symptoms will depend on when an individ- ual tries to sleep in relation to the circadian rhythm of sleep propensity. Non-24-hour sleep-wake type is most common among blind or visually impaired individ- uals who have decreased light perception. In sighted individuals, there is often a history of delayed sleep phase and of decreased exposure to light and structured social and physical activity. Sighted individuals with non-24-hour sleep-wake type also demonstrate in- creased sleep duration. Prevalence of non-24—hour sleep-wake type in the general population is unclear, but the disorder appears rare in sighted individuals. The prevalence in blind individuals is esti- mated to be 50%. Course of non-24-hour sleep—wake type is persistent, with intermittent remission and ex- acerbations due to changes in work and social schedules throughout the lifespan. Age at onset is variable, depending on the onset of visual impairment. In sighted individuals, be- cause of the overlap with delayed sleep phase type, non-24—hour sleep-wake type may de- velop in adolescence or early adulthood. Remission and relapse of symptoms in blind and sighted individuals largely depend on adherence to treatments designed to control sleep and wake structure and light exposure. Clinical expression may vary across the lifespan depending on social, school, and work obligations. In adolescents and adults, irregular sleep-wake schedules and exposure to light or lack of light at critical times of the day can exacerbate the effects of sleep loss and disrupt circadian entrainment. Consequently, symptoms of insomnia, daytime sleepiness, and school, professional, and interpersonal functioning may worsen. Environmental. In sighted individuals, decreased exposure or sensitivity to light and so- cial and physical activity cues may contribute to a free-running circadian rhythm. With the high frequency of mental disorders involving social isolation and cases of non-24—hour sleep-wake typexdeveloping after a change in sleep habits (e.g., night shift work, job loss), behavioral factors in combination with physiological tendency may precipitate and per- petuate this disorder in sighted individuals. Hospitalized individuals with neurological and psychiatric disorders can become insensitive to social cues, predisposing them to the de- velopment of non—24-hour sleep-wake type. Genetic and physiological. Blindness is a risk factor for non-24-hour sleep-wake type. Non-24—hour sleep-wake type has been associated with traumatic brain injury. Diagnosis is confirmed by history and sleep diary or actigraphy for an extended period. Sequential measurement of phase markers (e.g., melatonin) can help determine circadian phase in both sighted and blind individuals. Complaints of insomnia (sleep onset and sleep maintenance), excessive sleepiness, or both are prominent. The unpredictability of sleep and wake times (typically a daily delay drift) results in an inability to attend school or maintain a steady job and may increase potential for social isolation. Circadian rhythm sleep-wake disorders. In sighted individuals, non-24—hour sleep-wake type should be differentiated from delayed sleep phase type, as individuals with delayed sleep phase type may display a similar progressive delay in sleep period for several days. Depressive disorders. Depressive symptoms and depressive disorders may result in similar circadian dysregulation and symptoms. Blindness is often comorbid with non-24—hour sleep-wake type, as are depressive and bi- polar disorders with social isolation. Diagnosis is primarily based on a history of the individual working outside of the normal 8:00 AM. to 6:00 PM. daytime window (particularly at night) on a regularly scheduled (i.e., non-overtime) basis. Symptoms of excessive sleepiness at work, and impaired sleep at home, on a persistent basis are prominent. Presence of both sets of symptoms are usually required for a diagnosis of shift work type. Typically, when the individual reverts to a day- work routine, symptoms resolve. Although the etiology is slightly different, individuals to those experienced by individuals with shift work type who work rotating shifts. The prevalence of shift work type is unclear, but the disorder is estimated to affect 5%—10% of the night worker population (16%—20% of the workforce). Prevalence rises with advance- ment into middle-age and beyond (Drake et a1. 2004). Shift work type can appear in individuals of any age but is more prevalent in individuals older than 50 years and typically worsens with the passage of time if the disruptive work hours persist. Although older adults may show similar rates of circadian phase adjust- ment to a change in routine as do younger adults, they appear to experience significantly more sleep disruption as a consequence of the circadian phase shift. Temperamental. Predisposing factors include a morning-type disposition, a need for long (i.e., more than 8 hours) sleep durations in order to feel well rested, and strong com- peting social and domestic needs (e.g., parents of young children). Individuals who are able to commit to a nocturnal lifestyle, with few competing day-oriented demands, appear at lower risk for shift work type. Genetic and physiological. Because shift workers are more likely than day workers to be obese, obstructive sleep apnea may be present and may exacerbate the symptoms. A history and sleep diary or actigraphy may be useful in diagnosis, as discussed earlier for delayed sleep phase type. Functional Consequences of Shift Work TypeIndividuals with shift work type not only may perform poorly at work but also appear to be at risk for accidents both at work and on the drive home. They may also be at risk for poor mental health (e.g., alcohol use disorder, substance use disorder, depression) and physical health (e.g., gastrointestinal disorders, cardiovascular disease, diabetes, cancer). Individuals with a history of bipolar disorder are particularly Vulnerable to shift work typebrelated episodes of mania resulting from missed nights of sleep. Shift work type of- ten results in interpersonal problems. Normative variations in sleep with shift work. The diagnosis of shift work type, as op- posed to the ”normal” difficulties of shift work, must depend to some extent on the sever- ity of symptoms and / or level of distress experienced by the individual. Presence of shift work type symptoms even when the individual is able to live on a day-oriented routine for several weeks at a time may suggest the presence of other sleep disorders, such as sleep ap- nea, insomnia, and narcolepsy, which should be ruled out. Shift work type has been associated with increased alcohol use disorder, other substance use disorders, and depression. A variety of physical health disorders (e.g., gastrointestinal disorders, cardiovascular disease, diabetes, cancer) have been found to be associated with prolonged exposure to shift work. Relationship to International Classification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-Z), differentiates nine circadian rhythm sleep disorders, including jet lag type. . ParasomniasParasomnias are disorders characterized by abnormal behavioral, experiential, or physio- logical events occurring in association with sleep, specific sleep stages, or sleep-wake tran— sitions. The most common parasomnias—non—rapid eye movement (NREM) sleep mixtures of wakefulness and NREM sleep and wakefulness and REM sleep, respectively. These conditions serve as a reminder that sleep and wakefulness are not mutually exclu- sive and that sleep is not necessarily a global, whole-brain phenomenon. A. Recurrent episodes of incomplete awakening from sleep, usually occurring during the first third of the major sleep episode, accompanied by either one of the following: 1. Sleepwalking: Repeated episodes of rising from bed during sleep and walking about. While sleepwalking, the individual has a blank, staring face; is relatively un- responsive to the efforts of others to communicate with him or her; and can be awakened only with great difficulty. 2. Sleep terrors: Recurrent episodes of abrupt terror arousals from sleep, usually be- ginning with a panicky scream. There is intense fear and signs of autonomic arousal, such as mydriasis, tachycardia, rapid breathing, and sweating, during each episode. There is relative unresponsiveness to efforts of others to comfort the individual during the episodes. . No or little (e.g., only a single visual scene) dream imagery is recalled. . Amnesia for the episodes is present.. The episodes cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. E. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication). F. Coexisting mental and medical disorders do not explain the episodes of sleepwatking or sleep terrors. Coding note: For ICD-9-CM, code 307.46 for all subtypes. For ICD-10-CM, code is based on subtype. Specify whether: 307.46 (F51.3) Sleepwalking typeSpecify if: 307.46 (F51.4) Sleep terror typeThe essential feature of non—rapid eye movement (NREM) sleep arousal disorders is the repeated occurrence of incomplete arousals, usually beginning during the first third of the major Sleep episode (Criterion A), that typically are brief, lasting 1—10 minutes, but may be protracted, lasting up to 1 hour. The maximum duration of an event is unknown. The eyes are typically open during these events. Many individuals exhibit both subtypes of arousals on different occasions, which underscores the unitary underlying pathophysiology. The subtypes reflect varying degrees of simultaneous occurrence of wakefulness and NREM sleep, resulting in complex behaviors arising from sleep with varying degrees of conscious awareness, motor activity, and autonomic activation. The essential feature of Sleepwalking is repeated episodes of complex motor behavior initiated during sleep, including rising from bed and walking about (Criterion A1). Sleep- walking episodes begin during any stage of NREM sleep, most commonly during slow- wave sleep and therefore most often occurring during the first third of the night. During episodes, the individual has reduced alertness and responsiveness, a blank stare, and rel- ative unresponsiveness to communication with others or efforts by others to awaken the individual. If awakened during the episode (or on awakening the following morning), the individual has limited recall for the episode. After the episode, there may initially be a brief period of confusion or difficulty orienting, followed by full recovery of cognitive function and appropriate behavior. The essential feature of sleep terrors is the repeated occurrence of precipitous awaken- ings from sleep, usually beginning with a panicky scream or cry (Criterion A2). Sleep ter- rors usually begin during the first third of the major sleep episode and last 1—10 minutes, but they may last considerably longer, particularly in children. The episodes are accom- panied by impressive autonomic arousal and behavioral manifestations of intense fear. During an episode, the individual is difficult to awaken or comfort. If the individual awak- ens after the sleep terror, little or none of the dream, or only fragmentary, single images, are recalled. During a typical episode of sleep terrors, the individual abruptly sits up in bed screaming or crying, with a frightened expression and autonomic signs of intense anx- iety (e.g., tachycardia, rapid breathing, sweating, dilation of the pupils). The individual may be inconsolable and is usually unresponsive to the efforts of others to awaken or com- fort him or her. Sleep terrors are also called “night terrors” or “pavor nocturnus.” Sleepwalking episodes can include a wide variety of behaviors. Episodes may begin with confusion: the individual may simply sit up in bed, look about, or pick at the blanket or sheet. This behavior then becomes progressively complex. The individual may actually leave the bed and walk into closets, out of the room, and even out of buildings. Individuals may use the bathroom, eat, talk, or engage in more complex behaviors. Running and fran- tic attempts to escape some apparent threat can also occur. Most behaviors during sleep- walking episodes are routine and of low complexity. However, cases of unlocking doors and even operating machinery (driving an automobile) have been reported. Sleepwalking can also include inappropriate behavior (e.g., commonly, urinating in a closet or waste- basket). Most episodes last for several minutes to a half hour but may be more protracted. Inasmuch as sleep is a state of relative analgesia, painful injuries sustained during sleep- walking may not be appreciated until awakening after the fact. There are two ”specialized” forms of Sleepwalking: sleep-related eating behavior and sleep-related sexual behavior (sexsomnia or sleep sex). Individuals with sleep-reluted eating experience unwanted recurrent episodes of eating with varying degrees of amnesia, rang- ing from no awareness to full awareness without the ability to not eat. During these epi- sodes, inappropriate foods may be ingested. Individuals with sleep-related eating disorder may find evidence of their eating only the next morning. In sexsomnia, varying degrees of sexual activity (e.g., masturbation, fondling, groping, sexual intercourse) occur as complex behaviors arisin from sleep without conscious awareness. This condition is more common consequences. During a typical episode of sleep terrors, there is often a sense of overwhelming dread, with a compulsion to escape. Although fragmentary vivid dream images may occur, a story- like dream sequence (as in nightmares) is not reported. Most commonly, the individual does not awaken fully, but returns to sleep and has amnesia for the episode on awakening the next morning. Usually only one episode will occur on any one night. Occasionally several episodes may occur at intervals throughout the night. These events rarely arise during daytime naps. Isolated or infrequent NREM sleep arousal disorders are very common in the general pop- ulation. From 10% to 30% of children have had at least one episode of sleepwalking, and 2%—3% sleepwalk often. The prevalence of sleepwalking disorder, marked by repeated ep- isodes and impairment or distress, is much lower, probably in the range of 1%—5%. The prevalence of sleepwalking episodes (not sleepwalking disorder) is 10%—7.0% among adults, with weekly to monthly episodes occurring in 0.5%—0.7%. The lifetime prevalence of sleepwalking in adults is 29.2%, with a past-year prevalence of sleepwalking of 3.6%. The prevalence of sleep terrors in the general population is unknown. The prevalence of sleep terror episodes (as opposed to sleep terror disorder, in which there is recurrence and distress or impairment) is approximately 36.9% at 18 months of age, 19.7% at 30 months of age, and 2.2% in adults. quency with increasing age. The onset of sleepwalking in adults with no prior history of sleepwalking as children should prompt a search for specific etiologies, such as obstruc- tive sleep apnea, nocturnal seizures, or effect of medication. Environmental. Sedative use, sleep deprivation, sleep-wake schedule disruptions, fa- tigue, and physical or emotional stress increase the likelihood of episodes. Fever and sleep deprivation can produce an increased frequency of NREM sleep arousal disorders. Genetic and physiological. A family history for sleepwalking or sleep terrors may oc- cur in up to 80% of individuals who sleepwalk. The risk for sleepwalking is further in- creased (to as much as 60% of offspring) when both parents have a history of the disorder. Individuals with sleep terrors frequently have a positive family history of either sleep terrors or sleepwalking, with as high as a 10-fold increase in the prevalence of the disorder among first-degree biological relatives. Sleep terrors are much more common in monozy- gotic twins as compared with dizygotic twins. The exact mode of inheritance is unknown. Violent or sexual activity during sleepwalking episodes is more likely to occur in adults. Eating during sleepwalking episodes is more commonly seen in females. Sleepwalking oc- curs more often in females during childhood but more often in males during adulthood. Older children and adults provide a more detailed recollection of fearful images asso- ciated with sleep terrors than do younger children, who are more likely to have complete amnesia or report only a vague sense of fear. Among children, sleep terrors are more com- mon in males than in females. Among adults, the sex ratio is even. NREM sleep arousal disorders arise from any stage of NREM sleep but most commonly from deep NREM sleep (slow-wave sleep). They are most likely to appear in the first third of the night and do not commonly occur during daytime naps. During the episode, the polysomnogram may be obscured with movement artifact. In the absence of such artifact, the electroencephalogram typically shows theta or alpha frequency activity during the ep- isode, indicating partial or incomplete arousal. Polysomnography in conjunction with audiovisual monitoring can be used to document episodes of sleepwalking. In the absence of actually capturing an event during a polysomno- graphic recording, there are no polysomnographic features that can serve as a marker for sleepwalking. Sleep deprivation may increase the likelihood of capturing an event. As a group, individuals who sleepwalk show instability of deep NREM sleep, but the overlap in findings with individuals who do not sleepwalk is great enough to preclude use of this indicator in es- tablishing a diagnosis. Unlike arousals from REM sleep associated with nightmares, in which there is an increase in heart rate and respiration prior to the arousal, the NREM sleep arousals of sleep terrors begin precipitously from sleep, without anticipatory autonomic changes. The arousals are associated with impressive autonomic activity, with doubling or tripling of the heart rate. The pathophysiology is poorly understood, but there appears to be instability in the deeper stages of NREM sleep. Absent capturing an event during a formal sleep study, there are no reliable polysomnographic indicators of the tendency to experience sleep terrors. For the diagnosis of a NREM sleep arousal disorder to be made, the individual or house- hold members must experience clinically significant distress or impairment, although pa- subthreshold for the diagnosis. Embarrassment concerning the episodes can impair social relationships. Social isolation or occupational difficulties can result. The determination of a ”disorder” depends on a number of factors, which may vary on an individual basis and will depend on the frequency of events, potential for violence or injurious behaviors, em- barrassment, or disruption/ distress of other household members. Severity determination is best made based on the nature or consequence of the behaviors rather than simply on fre- quency. Uncommonly, NREM sleep arousal disorders may result in serious injury to the individual or to someone trying to console the individual. Injuries to others are confined to those in close proximity; individuals are not ”sought out." Typically, sleepwalking in both children and adults is not associated with significant mental disorders. For individuals with sleep-related eating behaviors, unknowingly preparing or eating food during the sleep period may create problems such as poor diabetes control, weight gain, injury (cuts and burns), or consequences of eating dangerous or toxic inedibles. NREM sleep arousal disorders may rarely result in violent or injurious behaviors with forensic implications. Nightmare disorder. In contrast to individuals with NREM sleep arousal disorders, in- dividuals with nightmare disorder typically awaken easily and completely, report vivid storylike dreams accompanying the episodes, and tend to have episodes later in the night. NREM sleep arousal disorders occur during NREM sleep, whereas nightmares usually oc- cur during REM sleep. Parents of children with NREM sleep arousal disorders may mis- interpret reports of fragmentary imagery as nightmares. Breathing-related sleep disorders. Breathing disorders during sleep can also produce confusional arousals with subsequent amnesia. However, breathing-related sleep disor- ders are also characterized by characteristic symptoms of snoring, breathing pauses, and daytime sleepiness. In some individuals, a breathing-related sleep disorder may precipi- tate episodes of sleepwalking. REM sleep behavior disorder. REM sleep behavior disorder may be difficult to distin- guish from NREM sleep arousal disorders. REM sleep behavior disorder is characterized by episodes of prominent, complex movements, often involving personal injury arising from sleep. In contrast to NREM sleep arousal disorders, REM sleep behavior disorder oc- curs during REM sleep. Individuals with REM sleep behavior disorder awaken easily and report more detailed and vivid dream content than do individuals with NREM sleep arousal disorders. They often report that they “act out dreams.” Parasomnia overlap syndrome. Parasomnia overlap syndrome consists of clinical and polysomnographic features of both sleepwalking and REM sleep behavior disorder. SIeep-related seizures. Some types of seizures can produce episodes of very unusual behaviors that occur predominantly or exclusively during sleep. Nocturnal seizures may closely mimic NREM sleep arousal disorders but tend to be more stereotypic in nature, oc- cur multiple times nightly, and be more likely to occur from daytime naps. The presence of sleep-related seizures does not preclude the presence of NREM sleep arousal disorders. Sleep-related seizures should be classified as a form of epilepsy. Alcohol-induced blackouts. Alcohol-induced blackouts may be associated with extremely complex behaviors in the absence of other suggestions of intoxication. They do not involve the loss of consciousness but rather reflect an isolated disruption of memory for events during a drinking episode. By history, these behaviors may be indistinguishable from those seen in NREM sleep arousal disorders. Dissociative amnesia, with dissociative fugue. Dissociative fugue may be extremely difficult to distinguish from sleepwalking. Unlike all other parasornnias, nocturnal disso- ciative fugue arises from a period of wakefulness during sleep, rather than precipitously from sleep without intervening wakefulness. A history of recurrent childhood physical or sexual abuse is usually present (but may be difficult to obtain). Malingering or other voluntary behavior occurring during wakefulness. As with disso- ciative fugue, malingering or other voluntary behavior occurring during wakefulness arises from wakefulness. Panic disorder. Panic attacks may also cause abrupt awakenings from deep NREM sleep accompanied by fearfulness, but these episodes produce rapid and complete awakening with- out the confusion, amnesia, or motor activity typical of NREM sleep arousal disorders. Medication-induced complex behaviors. Behaviors similar to those in NREM sleep arousal disorders can be induced by use of, or withdrawal from, substances or medica- tions (e.g., benzodiazepines, nonbenzodiazepine sedative-hypnotics, opiates, cocaine, nic- otine, antipsychotics, tricyclic antidepressants, chloral hydrate). Such behaviors may arise from the sleep period and may be extremely complex. The underlying pathophysiology appears to be a relatively isolated amnesia. In such cases, substance/medication-induced sleep disorder, parasomnia type, should be diagnosed (see “Substance/Medication- Induced Sleep Disorder” later in this chapter).Night eating syndrome. The sleep-related eating disorder form of sleepwalking is to be differentiated from night eating syndrome, in which there is a delay in the circadian rhythm of food ingestion and an association with insomnia and / or depression. In adults, there is an association between sleepwalking and major depressive episodes and obsessive-compulsive disorder. Children or adults with sleep terrors may have elevated scores for depression and anxiety on personality inventories. Relationship to International Classification ofThe International Classification of Sleep Disorders, 2nd Edition, includes ”confusional arousal” as a NREM sleep arousal disorder. Diagnostic Criteria 307.47 (F51.5)A. Repeated occurrences of extended, extremely dysphoric, and weII-remembered dreams that usually involve efforts to avoid threats to survival, security, or physical in- tegrity and that generally occur during the second half of the major sleep episode. B. On awakening from the dysphoric dreams, the individual rapidly becomes oriented and alert. C. The sleep disturbance causes clinically significant distress or impairment in social, oc— cupational, or other important areas of functioning. D. The nightmare symptoms are not attributable to the physiological effects of a sub- stance (e.g., a drug of abuse, a medication). E. Coexisting mental and medical disorders do not adequately explain the predominant complaint of dysphoric dreams. Specify if:Specify if:With associated non—sleep disorder, including substance use disordersCoding note: The code 307.47 (F51.5) applies to all three specifiers. Code also the relevant associated mental disorder, medical condition, or other sleep disorder imme- diately after the code for nightmare disorder in order to indicate the association. Specify if:Acute: Duration of period of nightmares is 1 month or less. Subacute: Duration of period of nightmares is greater than 1 month but less than 6 months. Persistent: Duration of period of nightmares is 6 months or greater. Specify current severity:Severity can be rated by the frequency with which the nightmares occur: Mild: Less than one episode per week on average.Moderate: One or more episodes per week but less than nightly. Severe: Episodes nightly.N ightmures are typically lengthy, elaborate, storylike sequences of dream imagery that seem real and that incite anxiety, fear, or other dysphoric emotions. Nightmare content typically focuses on attempts to avoid or cope with imminent danger but may involve themes that evoke other negative emotions. Nightmares occurring after traumatic experi- ences may replicate the threatening situation ("replicative nightmares”), but most do not. On awakening, nightmares are well remembered and can be described in detail. They arise out sleep but are more likely in the second half of the major sleep episode when dreaming is longer and mdre intense. Factors that increase early-night REM intensity, such as sleep fragmentation or deprivation, jet lag, and REM-sensitive medications, might facilitate nightmares earlier in the night, including at sleep onset. Nightmares usually terminate with awakening and rapid return of full alertness. How- ever, the dysphoric emotions may persist into wakefulness and contribute to difficulty re- turning to sleep and lasting daytime distress. Some nightmares, known as ”bad dreams,” may not induce awakening and are recalled only later. If nightmares occur during sleep- onset REM periods (hypnagogic), the dysphoric emotion is frequently accompanied by a sense of being both awake and unable to move voluntarily (isolated sleep paralysis). Mild autonomic arousal, including sweating, tachycardia, and tachypnea, may character- ize nightmares. Body movements and vocalizations are not characteristic because of REM sleep—related loss of skeletal muscle tone, but such behaviors may occur under situations of emotional stress or sleep fragmentation and in posttraumatic stress disorder (PTSD). When talking or emoting occurs, it is typically a brief event terminating the nightmare. Individuals with frequent nightmares are at substantially greater risk for suicidal ide- ation and suicide attempts, even when gender and mental illness are taken into account. Prevalence of nightmares increases through childhood into adolescence. From 1.3% to 3.9% of parents report that their preschool children have nightmares ”often” or "always”. Prevalence increases from ages 10 to 13 for both males and females but continues to in- crease to ages 20—29 for females (while decreasing for males), when it can be twice as high for females as for males. Prevalence decreases steadily with age for both sexes, but the gen- der difference remains. Among adults, prevalence of nightmares at least monthly is 6%, whereas prevalence for frequent nightmares is 1%—2%. Estimates often combine idio- pathic and posttraumatic nightmares indiscriminately. verity in late adolescence or early adulthood. Nightmares most likely appear in children exposed to acute or chronic psychosocial stressors and thus may not resolve spontane- ously. In a minority, frequent nightmares persist into adulthood, becoming virtually a life- long disturbance. Although specific nightmare content may reflect the individual’s age, the essential features of the disorder are the same across age groups. Temperamental. Individuals who experience nightmares report more frequent past ad- verse events, but not necessarily trauma, and often display personality disturbances or psychiatric diagnosis. Environmental. Sleep deprivation or fragmentation, and irregular sleep-wake schedules that alter the timing, intensity, or quantity of REM sleep, can put individuals at risk for nightmares. Genetic and physiological. Twin studies have identified genetic effects on the disposi- tion to nightmares and their co-occurrence with other parasomnias (e.g., sleeptalking). Course modifiers. Adaptive parental bedside behaviors, such as soothing the child fol- lowing nightmares, may protect against developing chronic nightmares. The significance attributed to nightmares may vary by culture, and sensitivity to such be- liefs may facilitate disclosure. Adult females report having nightmares more frequently than do adult males. Nightmare content differs by sex, with adult females tending to report themes of sexual harassment or of loved ones disappearing/dying, and adult males tending to report themes of physical aggression or war/terror. Polysomnographic studies demonstrate abrupt awakenings from REM sleep, usually during the second half of the night, prior to report of a nightmare. Heart, respiratory, and eye move- ment rates may quicken or increase in variability before awakening. N ightmares following traumatic events may also arise during non-REM (NREM), particularly stage 2, sleep. The typ- ical sleep of individuals with nightmares is mildly impaired (e.g., reduced efficiency, less slow- wave sleep, more awakenings), with more frequent periodic leg movements in sleep and rel- ative sympathetic nervous system activation after REM sleep deprivation. Functional Consequences of Nightmare Disorder pational impairment. However, if awakenings are frequent or result in sleep avoidance, individuals may experience excessive daytime sleepiness, poor concentration, depression, anxiety, or irritability. Frequent childhood nightmares (e.g., several per week), may cause significant distress to parents and child. Sleep terror disorder. Both nightmare disorder and sleep terror disorder include awak- enings or partial awakenings with fearfulness and autonomic activation, but the two dis- orders are differentiable. Nightmares typically occur later in the night, during REM sleep, and produce vivid, storylike, and clearly recalled dreams; mild autonomic arousal; and complete awakenings. Sleep terrors typically arise in the first third of the night during rate storylike quality. The terrors lead to partial awakenings that leave the individual con— fused, disoriented, and only partially responsive and with substantial autonomic arousal. There is usually amnesia for the event in the morning. REM sleep behavior disorder. The presence of complex motor activity during fright- ening dreams should prompt further evaluation for REM sleep behavior disorder, which occurs more typically among late middle-age males and, unlike nightmare disorder, is as- sociated with often violent dream enactments and a history of nocturnal injuries. The dream disturbance of REM sleep behavior disorder is described by patients as nightmares but is controlled by appropriate medication. Bereavement. Dysphoric dreams may occur during bereavement but typically involve loss and sadness and are followed by self—reflection and insight, rather than distress, on awakening. Narcolepsy. Nightmares are a frequent complaint in narcolepsy, but the presence of ex- cessive sleepiness and cataplexy differentiates this condition from nightmare disorder. Nocturnal seizures. Seizures may rarely manifest as nightmares and should be evalu- ated with polysomnography and continuous video electroencephalography. Nocturnal seizures usually involve stereotypical motor activity. Associated nightmares, if recalled, are often repetitive in nature or reflect epileptogenic features such as the content of diurnal auras (e.g., unmotivated dread), phosphenes, or ictal imagery. Disorders of arousal, espe- cially confusional arousals, may also be present. Breathing-related sleep disorders. Breathing-related sleep disorders can lead to awaken- ings with autonomic arousal, but these are not usually accompanied by recall of nightmares. Panic disorder. Attacks arising during sleep can produce abrupt awakenings with au- tonomic arousal and fearfulness, but nightmares are typically not reported and symptoms are similar to panic attacks arising during wakefulness. Sleep-related dissociative disorders. Individuals may recall actual physical or emo- tional trauma as a ”dream" during electroencephalography-documented awakenings. Medication or substance use. Numerous substances/medications can precipitate night- mares, including dopaminergics; beta—adrenergic antagonists and other antihypertensives; amphetamine, cocaine, and other stimulants; antidepressants; smoking cessation aids; and melatonin. Withdrawal of REM sleep—suppressant medications (e.g., antidepressants) and alcohol can produce REM sleep rebound accompanied by nightmares. If nightmares are sufficiently severe to warrant independent clinical attention, a diagnosis of substance/ medication—induced sleep disorder should be considered. Nightmares may be comorbid with several medical conditions, including coronary heart disease, cancer, parkinsonism, and pain, and can accompany medical treatments, such as he- modialysis, or withdrawal from medications or substances of abuse. Nightmares frequently are comorbid with other mental disorders, including PTSD; insomnia disorder; schizophrenia; psychosis; mood, anxiety, adjustment, and personality disorders; and grief during be- reavement. A concurrent nightmare disorder diagnosis should only be considered when in- dependent clinical attention is warranted (i.e., Criteria A—C are met). Otherwise, no separate diagnosis is necessary. These conditions should be listed under the appropriate comorbid category specifier. However, nightmare disorder may be diagnosed as a separate disorder in individuals with PTSD if the nightmares are temporally unrelated to PTSD (i.e., preceding other PTSD symptoms or persisting after other PTSD symptoms have resolved). Nightmares are normally characteristic of REM sleep behavior disorder, PTSD, and acute stress disorder, but nightmare disorder may be independently coded if nightmares preceded the condition and their frequency or severity necessitates independent clinical attention. The latter may be determined by asking whether nightmares were a problem before onset of the other disorder and whether they continued after other symptoms had remitted. Relationshlp to International Ciassification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-Z), presents similar di- agnostic criteria for nightmare disorder. Diagnostic Criteria 327.42 (647.52)A. Repeated episodes of arousal during sleep associated with vocalization and/or com- plex motor behaviors. B. These behaviors arise during rapid eye movement (REM) sleep and therefore usually occur more than 90 minutes after sleep onset, are more frequent during the later por- tions of the sleep period, and uncommonly occur during daytime naps. C. Upon awakening from these episodes. the individual is completely awake, alert, and not confused or disoriented. D. Either of the following: 1. REM sleep without atonia on polysomnographic recording. 2. A history suggestive of REM sleep behavior disorder and an established synuclein- opathy diagnosis (e.g., Parkinson’s disease, multiple system atrophy). E. The behaviors cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning (which may include injury to self or the bed partner). F. The disturbance is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition. 6. Coexisting mental and medical disorders do not explain the episodes. The essential feature of rapid eye movement (REM) sleep behavior disorder is repeated episodes of arousal, often associated with vocalizations and / or complex motor behaviors arising from REM sleep (Criterion A). These behaviors often reflect motor responses to the content of action-filled or violent dreams of being attacked or trying to escape from a threatening situation, which may be termed dream enacting behaviors. The vocalizations are often loud, emotion-filled, and profane. These behaviors may be very bothersome to the individual and the bed partner and may result in significant injury (e.g., falling, jumping, or flying out of bed; running, punching, thrusting, hitting, or kicking). Upon awakening, the individual is immediately awake, alert, and oriented (Criterion C) and is often able to recall dream mentation, which closely correlates with the observed behavior. The eyes typically remain closed during these events. The diagnosis of REM sleep behavior disor- will depend on a number of factors, including the frequency of events, the potential for vi- olence or injurious behaviors, embarrassment, and distress in other household members. Severity determination is best made based on the nature or consequence of the behavior rather than simply on frequency. Although the behaviors are typically prominent and vi- olent, lesser behaviors may also occur. The prevalence of REM sleep behavior disorder is approximately O.38%—0.5% in the gen- eral population. Prevalence in patients with psychiatric disorders may be greater, possibly related to medications prescribed for the psychiatric disorder. The onset of REM sleep behavior disorder may be gradual or rapid, and the course is usu- ally progressive. REM sleep behavior disorder associated with neurodegenerative disor- ders may improve as the underlying neurodegenerative disorder progresses. Because of the very high association with the later appearance of an underlying neurodegenerative disorder, most notably one of the synucleinopathies (Parkinson’s disease, multiple system atrophy, or major or mild neurocognitive disorder with Lewy bodies), the neurological status of individuals with REM sleep behavior disorder should be closely monitored. REM sleep behavior disorder overwhelmingly affects males older than 50 years, but in- creasingly this disorder is being identified in females and in younger individuals. Symp- toms in young individuals, particularly young females, should raise the possibility of narcolepsy or medication-induced REM sleep behavior disorder. Genetic and physiological. Many widely prescribed medications, including tricyclic antidepressants, selective serotonin reuptake inhibitors, serotonin-norepinephrine reup- take inhibitors, and beta-blockers, may result in polysomnographic evidence of REM sleep without atonia and in frank REM sleep behavior disorder. It is not known whether the predisposition. phasic electromyographic activity during REM sleep that is normally associated with mus- cle atonia. The increased muscle activity variably affects different muscle groups, mandating more extensive electromyographic monitoring than is employed in conventional sleep stud- ies. For this reason, it is suggested that electromyographic monitoring include the submen- talis, bilateral extensor digitorum, and bilateral anterior tibialis muscle groups. Continuous video monitoring is mandatory. Other polysomnographic findings may include very fre- (NREM) sleep. This polysomnography observation, termed REM sleep without atonia, is pres- ent in virtually all cases of REM sleep behavior disorder but may also be an asymptomatic polysomnographic finding. Clinical dream—enacting behaviors coupled with the polysom- nographic finding of REM without atonia is necessary for the diagnosis of REM sleep behav- ior disorder. REM sleep without atonia without a clinical history of dream-enacting behaviors is simply an asymptomatic polysomnographic observation. It is not known whether isolated REM sleep without atonia is a precursor to REM sleep behavior disorder. dividuals. Embarrassment concerning the episodes can impair social relationships. Indi- viduals may avoid situations in which others might become aware of the disturbance, visiting friends overnight, or sleeping with bed partners. Social isolation or occupational difficulties can result. Uncommonly, REM sleep behavior disorder may result in serious injury to the victim or to the bed partner. Other parasomnias. Confusional arousals, sleepwalking, and sleep terrors can easily be confused with REM sleep behavior disorder. In general, these disorders occur in younger individuals. Unlike REM sleep behavior disorder, they arise from deep NREM sleep and therefore tend to occur in the early portion of the sleep period. Awakening from a confu- sional arousal is associated with confusion, disorientation, and incomplete recall of dream mentation accompanying the behavior. Polysomnographic monitoring in the disorders of arousal reveals normal REM atonia. Nocturnal seizures. Nocturnal seizures may perfectly mimic REM sleep behavior disor- der, but the behaviors are generally more stereotyped. Polysomnographic monitoring em- ploying a full electroencephalographic seizure montage may differentiate the two. REM sleep without atonia is not present on polysomnographic monitoring. Obstructive sleep apnea. Obstructive sleep apnea may result in behaviors indistin- guishable from REM sleep behavior disorder. Polysomnographic monitoring is necessary to differentiate between the two. In this case, the symptoms resolve following effective treatment of the obstructive sleep apnea, and REM sleep without atonia is not present on polysomnography monitoring. Other specified dissociative disorder (sleep-related psychogenic dissociative disorder).Unlike virtually all other parasomnias, which arise precipitously from NREM or REM sleep, psychogenic dissociative behaviors arise from a period of well-defined wakefulness during the sleep period. Unlike REM sleep behavior disorder, this condition is more prev- alent in young females. Malingering. Many cases of malingering in which the individual reports problematic sleep movements perfectly mimic the clinical features of REM sleep behavior disorder, and polysomnographic documentation is mandatory. REM sleep behavior disorder is present concurrently in approximately 30% of patients with narcolepsy. When it occurs in narcolepsy, the demographics reflect the younger age range of narcolepsy, with equal frequency in males and females. Based on findings from individuals presenting to sleep clinics, most individuals (>50%) with initially ”idiopathic” notably, one of the synucleinopathies (Parkinson's disease, multiple system atrophy, or major or mild neurocognitive disorder with Lewy bodies). REM sleep behavior disorder often predates any other sign of these disorders by many years (often more than a decade). Relationship to International Classification ofREM sleep behavior disorder is virtually identical to REM sleep behavior disorder in the International Classification of Sleep Disorders, 2nd Edition (ICSD-2).Diagnostic Criteria 333.94 (625.81)A. An urge to move the legs, usually accompanied by or in response to uncomfortable and unpleasant sensations in the legs, characterized by all of the following: 1. The urge to move the legs begins or worsens during periods of rest or inactivity. 2. The urge to move the legs is partially or totally relieved by movement. 3. The urge to move the legs is worse in the evening or at night than during the day, or occurs only in the evening or at night. B. The symptoms in Criterion A occur at least three times per week and have persisted for at least 3 months. C. The symptoms in Criterion A are accompanied by significant distress or impairment in social. occupational, educational, academic, behavioral, or other important areas of functioning. D. The symptoms in Criterion A are not attributable to another mental disorder or medical condition (e.g., arthritis, leg edema, peripheral ischemia. leg cramps) and are not better explained by a behavioral condition (e.g., positional discomfort, habitual foot tapping). E. The symptoms are not attributable to the physiological effects of a drug of abuse or medication (e.g., akathisia). Restless legs syndrome (RLS) is a sensorimotor, neurological sleep disorder characterized by a desire to move the legs or arms, usually associated with uncomfortable sensations typically described as creeping, crawling, tingling, burning, or itching (Criterion A). The diagnosis of RLS is based primarily on patient self—report and history. Symptoms are worse when the individual is at rest, and frequent movements of the legs occur in an effort to relieve the uncomfortable sensations. Symptoms are worse in the evening or night, and in some individuals they occur only in the evening or night. Evening worsening occurs in— dependently of any differences in activity. It is important to differentiate RLS from other conditions such as positional discomfort and leg cramps (Criterion D). The symptoms of RLS can delay sleep onset and awaken the individual from sleep and are associated with significant sleep fragmentation. The relief obtained from moving the legs may no longer be apparent in severe cases. RLS is associated with daytime sleepiness and is frequently accompanied by significant clinical distress or functional impairment. Periodic leg movements in sleep (PLMS) can serve as corroborating evidence for RLS, with up to 90% of individuals diagnosed with RLS demonstrating PLMS when recordings are taken over multiple nights. Periodic leg movements during wakefulness are supportive of an RLS diagnosis. Reports of difficulty initiating and maintaining sleep and of excessive daytime sleepiness may also support the diagnosis of RLS. Additional supportive features include a family history of RLS among first-degree relatives and a reduction in symptoms, at least initially, with dopaminergic treatment. Prevalence rates of RLS vary widely when broad criteria are utilized but range from 2% to 7.2% when more defined criteria are employed. When frequency of symptoms is at least three times per week with moderate or severe distress, the prevalence rate is 1.6%; when frequency of symptoms is a minimum of one time per week, the prevalence rate is 4.5%. Females are 1.5—2 times more likely than males to have RLS. RLS also increases with age. The prevalence of RLS may be lower in Asian populations. The onset of RLS typically occurs in the second or third decade. Approximately 40% of in- dividuals diagnosed with RLS during adulthood report having experienced symptoms before age 20 years, and 20% report having experienced symptoms before age 10 years. Prevalence rates of RLS increase steadily with age until about age 60 years, with symptoms remaining stable or decreasing slightly in older age groups. Compared with nonfamilial cases, familial RLS usually has a younger age at onset and a slower progressive course. The clinical course of RLS differs by age at onset. When onset occurs before age 45, there is of— ten a slow progression of symptoms. In late-onset RLS, rapid progression is typical, and aggravating factors are common. Symptoms of RLS appear similar across the lifespan, re- maining stable or decreasing slightly in older age groups. Diagnosis of RLS in children can be difficult because of the self—report component. While Criterion A for adults assumes that the description of ”urge to move" is by the pa- tient, pediatric diagnosis requires a description in the child’s own words rather than by a parent or caretaker. Typically children age 6 years or older are able to provide detailed, ad— equate descriptors of RLS. However, children rarely use or understand the word "urge," reporting instead that their legs ”have to” or ”got to" move. Also, potentially related to prolonged periods of sitting during class, two-thirds of children and adolescents report daytime leg sensations. Thus, for diagnostic Criterion A3, it is important to compare equal duration of sitting or lying down in the day to sitting or lying down in the evening or night. Nocturnal worsening tends to persist even in the context of pediatric RLS. As with RLS in adults, there is a significant negative impact on sleep, mood, cognition, and function. Im- pairment in children and adolescents is manifested more often in behavioral and educa- tional domains. Genetic and physiological. Predisposing factors include female gender, advancing age, genetic risk variants, and family history of RLS. Precipitating factors are often time- limited, such as iron deficiency, with most individuals resuming normal sleep patterns after the initial triggering event has disappeared. Genetic risk variants also play a role in RLS secondary to such disorders as uremia, suggesting that individuals with a genetic sus- ceptibility develop RLS in the presence of further risk factors. RLS has a strong familial component. There are defined pathophysiological pathways subserving RLS. Genome-wide asso- ciation studies have found that RLS is significantly associated with common genetic vari- ants in intronic or intergenic regions in MEISI, BTBD9, and MAP2K5 on chromosomes 2p, 6p, and 15q, respectively. The association of these three variants with RLS has been inde- pendently replicated. B TBD9 confers a very large (80%) excessive risk when even a single allele is present. Because of the high frequency of this variant in individuals of European descent, the population attributable risk (PAR) approximates 50%. At-risk alleles associ- ated with MEISI and BTBD9 are less common in individuals of African or Asian descent, perhaps suggesting lower risk for RLS in these populations. Pathophysiological mechanisms in RLS also include disturbances in the central dopa- minergic system and disturbances in iron metabolism. The endogenous opiate system may also be involved. Treatment effects of dopaminergic drugs (primarily D2 and D3 non- ergot agonists) provide further support that RLS is grounded in dysfunctional central dopaminergic pathways. While the effective treatment of RLS has also been shown to sig- nificantly reduce depressive symptoms, serotonergic antidepressants can induce or aggra- vate RLS in some individuals. Although RLS is more prevalent in females than in males, there are no diagnostic differ- ences according to gender. However, the prevalence of RLS during pregnancy is two to three times greater than in the general population. RLS associated with pregnancy peaks during the third trimester and improves or resolves in most cases soon after delivery. The gender difference in prevalence of RLS is explained at least in part by parity, with nullipa- rous females being at the same risk of RLS as age—matched males. Polysomnography demonstrates significant abnormalities in RLS, commonly increased latency to sleep, and higher arousal index. Polysomnography with a preceding immobili- zation test may provide an indicator of the motor sign of RLS, periodic limb movements, under standard conditions of sleep and during quiet resting, both of which can provoke RLS symptoms. Functionai Consequences of Restless Legs SyndromeForms of RLS severe enough to significantly impair functioning or associated with mental dis- orders, including depression and anxiety, occur in approximately 2%—3% of the population. Although the impact of milder symptoms is less well characterized, individuals with RLS complain of disruption in at least one activity of daily living, with up to 50% reporting a negative impact on mood, and 476% reporting a lack of energy. The most common conse- quences of RLS are sleep disturbance, including reduced sleep time, sleep fragmentation, and overall distuibance; depression, generalized anxiety disorder, panic disorder, and post- traumatic stress disorder; and quality-of-life impairments. RLS can result in daytime sleep- iness or fatigue and is frequently accompanied by significant distress or impairment in affective, social, occupational, educational, academic, behavioral, or cognitive functioning. The most important conditions in the differential diagnosis of RLS are leg cramps, posi- tional discomfort, arthralgias/arthritis, myalgias, positional ischemia (numbness), leg edema, peripheral neuropathy, radiculopathy, and habitual foot tapping. ”I(notting” of the muscle (cramps), relief with a single postural shift, limitation to joints, soreness to pal- pation (myalgias), and other abnormalities on physical examination are not characteristic of RLS. Unlike RLS, nocturnal leg cramps do not typically present with the desire to move the limbs nor are there frequent limb movements. Less common conditions to be differen- tiated from RLS include neuroleptic-induced akathisia, myelopathy, symptomatic venous insufficiency, peripheral artery disease, eczema, other orthopedic problems, and anxiety- induced restlessness. Worsening at night and periodic limb movements are more common in RLS than in medication-induced akathisia or peripheral neuropathy. While is it important that RLS symptoms not be solely accounted for by another medical or behavioral condition, it should also be appreciated that any of these similar conditions can occur in an individual with RLS. This necessitates a separate focus on each possible condi- tion in the diagnostic process and when assessing impact. For cases in which the diagnosis of RLS is not certain, evaluation for the supportive features of RLS, particularly PLMS or a fam- ily history of RLS, may be helpful. Clinical features, such as response to a dopaminergic agent and positive family history for RLS, can help with the differential diagnosis. Depressive disorders, anxiety disorders, and attentional disorders are commonly comor- bid with RLS and are discussed in the section ”Functional Consequences of Restless Legs Syndrome." The main medical disorder comorbid with RLS is cardiovascular disease. There may be an association with numerous other medical disorders, including hyperten- sion, narcolepsy, migraine, Parkinson’s disease, multiple sclerosis, peripheral neuropathy, obstructive sleep apnea, diabetes mellitus, fibromyalgia, osteoporosis, obesity, thyroid disease, and cancer. Iron deficiency, pregnancy, and chronic renal failure are also comor- bid with RLS. Reiationship to Internationai Ciassification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-2), presents similar diag- symptoms. A. A prominent and severe disturbance in sleep.B. There is evidence from the history, physical examination, or laboratory findings of both (1) and (2): 1. The symptoms in Criterion A developed during or soon after substance intoxication or after withdrawal from or exposure to a medication. 2. The involved substance/medication is capable of producing the symptoms in Crite- rion A. C. The disturbance is not better explained by a sleep disorder that is not substance/ medication-induced. Such evidence of an independent sleep disorder could include the following: The symptoms precede the onset of the substance/medication use; the symptoms persist for a substantial period of time (e.g., about 1 month) after the cessation of acute withdrawal or severe intoxication; or there is other evidence suggesting the existence of an independent non-substance/medication-induced sleep disorder (e.g., a history of recurrent non-substance/medication-related episodes). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Note: This diagnosis should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and when they are sufficiently severe to warrant clinical attention. Coding note: The ICD-9-CM and ICD-10-CM codes for the [specific substance/medica- tion]-induced sleep disorders are indicated in the table below. Note that the ICD—10-CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the sub- stance-induced sleep disorder, the 4th position character is “,"1 and the clinician should record “mild [substance] use disorder” before the substance-induced sleep disorder (e.g., “mild cocaine use disorder with cocaine-induced sleep disorder”). If a moderate or severe substance use disorder is comorbid with the substance-induced sleep disorder, the 4th po- sition character is “2," and the clinician should record “moderate [substance] use disorder” or “severe [substance] use disorder,” depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one-time heavy use of the substance). then the 4th position character is “9" and the clinician should record only the substance-induced sleep disorder. A moderate or severe tobacco use disorder is required in order to code a tobacco-induced sleep disorder; it is not permissible to code a comorbid mild tobacco use disorder or no tobacco use disorder with a tobacco—induced sleep disorder. Specify whether:Insomnia type: Characterized by difficulty falling asleep or maintaining sleep, frequent nocturnal awakenings, or nonrestorative sleep. Daytime sleepiness type: Characterized by predominant complaint of excessive sleepiness/fatigue during waking hours or. less commonly, a long sleep period. Parasomnia type: Characterized by abnormal behavioral events during sleep.Mixed type: Characterized by a substance/medication-induced sleep problem charac- terized by multiple types of sleep symptoms, but no symptom clearly predominates. Specify it (see Table 1 in the chapter “Substance—Related and Addictive Disorders" for di- agnoses associated with substance class): With onset during intoxication: This specifier should be used if criteria are met for intoxication with the substance/medication and symptoms developed during the intox- ication period. With onset during discontinuation/withdrawal: This specifier should be used it cri- teria are met for discontinuation/withdrawal from the substance/medication and symp- toms developed during. or shortly after, discontinuation of the substance/medication. With use disorder, Without disorder, moderate useAlcohol 291.82 F10.182 F10.282 F10.982Caffeine 292.85 F15.182 F15.282 F15.982Cannabis 292.85 F12.188 F12.288 F12.988Opioid 292.85 F11.182 F11.282 F11.982Sedative, hypnotic, or anxiolytic 292.85 F13.182 F13.282 F13.982Amphetamine (or other 292.85 F15.182 F15.282 F15.982Cocaine 292.85 F14.182 F14.282 F14.982Tobacco 292.85 NA F17.208 NAOther (or unknown) substance 292.85 F19.182 F19.282 F19.982 |CD-9-CM. The name of the substance/ medication-induced sleep disorder begins with the specific substance (e.g., cocaine, bupropion) that is presumed to be causing the sleep disturbance. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., bupropion), the code for ”other substance” should be used; and in cases in which a sub- stance is judged to be an etiological factor but the specific class of substance is unknown, the category ”unknown substance” should be used. The name of the disorder is followed by the specification of onset (i.e., onset during in- toxication, onset during discontinuation/withdrawal), followed by the subtype designa- tion (i.e., insomnia type, daytime sleepiness type, parasomnia type, mixed type). Unlike the recording procedures for ICD-IO-CM, which combine the substance-induced disorder and substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of insomnia occurring during withdrawal in a man with a severe lorazepam use disorder, the diagnosis is 292.85 lorazepam-induced sleep disorder, with onset during withdrawal, insomnia type. An ad- ditional diagnosis of 304.10 severe lorazepam use disorder is also given. When more than one substance is judged to play a significant role in the development of the sleep distur- bance, each should be listed separately (e.g., 292.85 alcohol-induced sleep disorder, With onset during intoxication, insomnia type; 292.85 cocaine—induced sleep disorder, with on- set during intoxication, insomnia type). |CD-1 O-CM. The name of the substance/medication-induced sleep disorder begins with the specific substance (e.g., cocaine, bupropion) that is presumed to be causing the sleep distur- bance. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class and presence or absence of a comorbid substance use disorder. For sub- stances that do not fit into any of the classes (e.g., bupropion), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category "unknown substance" should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word “with,” followed by the name of the substance-induced sleep disorder, followed by the specification of onset (i.e., onset during intoxication, onset during discontinuation/withdrawal), followed by the subtype designation (i.e., insomnia type, daytime sleepiness type, parasomnia type, mixed type). For example, in the case of insomnia occurring during withdrawal in a man with a severe lorazepam use disorder, the diagnosis is F13.282 severe lorazepam use disorder with lorazepam-induced sleep disor— der, with onset during withdrawal, insomnia type. A separate diagnosis of the comorbid severe lorazepam use disorder is not given. If the substance-induced sleep disorder occurs without a comorbid substance use disorder (e.g., with medication use), no accompanying substance use disorder is noted (e.g., F19.982 bupropion-induced sleep disorder, with on- set during medication use, insomnia type). When more than one substance is judged to play a significant role in the development of the sleep disturbance, each should be listed separately (e.g., F10.282 severe alcohol use disorder with alcohol-induced sleep disorder, with onset during intoxication, insomnia type; F14.282 severe cocaine use disorder with cocaine-induced sleep disorder, with onset during intoxication, insomnia type). The essential feature of substance/medication-induced sleep disorder is a prominent sleep disturbance that is sufficiently severe to warrant independent clinical attention (Criterion A) and that is judged to be primarily associated with the pharmacological effects of a substance (i.e., a drug of abuse, a medication, toxin exposure) (Criterion B). Depending on the sub- stance involved, one of four types of sleep disturbances is reported. Insomnia type and day- time sleepiness type are most common, while parasomnia type is seen less often. The mixed type is noted when more than one type of sleep disturbance—related symptom is present and none predominates. The disturbance must not be better explained by another sleep disorder (Criterion C). A substance / medication-induced sleep disorder is distinguished from insom- nia disorder or a disorder associated with excessive daytime sleepiness by considering onset and course. For drugs of abuse, there must be evidence of intoxication or withdrawal from the history, physical examination, or laboratory findings. Substance/ medication-induced sleep disorder arises only in association with intoxication or discontinuation/withdrawal states, whereas other sleep disorders may precede the onset of substance use or occur during times of sustained abstinence. As discontinuation/ withdrawal states for some substances can be protracted, onset of the sleep disturbance can occur 4 weeks after cessation of sub- stance use, and the disturbance may have features atypical of other sleep disorders (e.g., atypical age at onset or course). The diagnosis is not made if the sleep disturbance occurs only during a delirium (Criterion D). The symptoms must cause clinically significant dis- tress or impairment in social, occupational, or other important areas of functioning (Crite— rion E). This diagnosis should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the symptoms in Criterion A predominate in the clinical picture and when the symptoms warrant independent clinical attention. During periods of substance/ medication use, intoxication, or withdrawal, individuals fre- quently complain of dysphoric mood, including depression and anxiety, irritability, cog- nitive impairment, inability to concentrate, and fatigue. Prominent and severe sleep disturbances can occur in association with intoxication with the following classes of substances: alcohol; caffeine; cannabis; opioids; sedatives, hypnotics, 0r anxiolytics; stimulants (including cocaine); and other (or unknown) sub- stances. Prominent and severe sleep disturbances can occur in association with withdrawal from the following classes of substances: alcohol; caffeine; cannabis; opioids; sedatives, hypnotics, or anxiolytics; stimulant (including cocaine); tobacco; and other (or unknown) substances. Some medications that invoke sleep disturbances include adrenergic agonists and antagonists, dopamine agonists and antagonists, cholinergic agonists and antagonists, serotonergic agonists and antagonists, antihistamines, and corticosteroids. Alcohol. Alcohol-induced sleep disorder typically occurs as insomnia type. During acute intoxication, alcohol produces an immediate sedative effect depending on close, ac- duced rapid eye movement (REM) sleep. Following these initial effects, there may be increased wakefulness, restless sleep, and vivid and anxiety-laden dreams for the remain- ing sleep period. In parallel, stages 3 and 4 sleep are reduced, and wakefulness and REM sleep are increased. Alcohol can aggravate breathing-related sleep disorder. With habitual use, alcohol continues to show a short—lived sedative effect in the first half of the night, fol- lowed by sleep continuity disruption in the second half. During alcohol withdrawal, there is extremely disrupted sleep continuity, and an increased amount and intensity of REM sleep, associated frequently with vivid dreaming, which in extreme form, constitutes part of alcohol withdrawal delirium. After acute withdrawal, chronic alcohol users may con- tinue to complain of light, fragmented sleep for weeks to years associated with a persistent deficit in slow-wave sleep. Caffeine. Caffeine-induced sleep disorder produces insomnia in a dose-dependent man- ner, with some individuals presenting with daytime sleepiness related to withdrawal. Cannabis. Acute administration of cannabis may shorten sleep latency, though arous- ing effects with increments in sleep latency also occur. Cannabis enhances slow-wave sleep and suppresses REM sleep after acute administration. In chronic users, tolerance to the sleep-inducing and slow-wave sleep—enhancing effects develops. Upon withdrawal, sleep difficulties and unpleasant dreams have been reported lasting for several weeks. during this phase.Opioids. Opioids may produce an increase in sleepiness and in subjective depth of sleep, and reduced REM sleep, during acute short-term use. With continued administration, tol- erance to the sedative effects of opioids develops and there are complaints of insomnia. Consistent with their respiratory depressant effects, opioids exacerbate sleep apnea. Sedative, hypnotic, or anxiolytic substances. Sedatives, hypnotics, and anxiolytics (e.g., barbiturates, benzodiazepines receptor agonists, meprobamate, glutethimide, methypry- Ion) have similar effects as opioids on sleep. During acute intoxication, sedative-hypnotic drugs produce the expected increase in sleepiness and decrease in wakefulness. Chronic use (particularly of barbiturates and the older nonbarbiturate, nonbenzodiazepine drugs) may cause tolerance with subsequent return of insomnia. Daytime sleepiness may occur. Sedative-hypnotic drugs can increase the frequency and severity of obstructive sleep ap- nea events. Parasomnias are associated with use of benzodiazepine receptor agonists, es- pecially when these medications are taken at higher doses and when they are combined with other sedative drugs. Abrupt discontinuation of chronic sedative, hypnotic, or anx- iolytic use can lead to withdrawal but more commonly rebound insomnia, a condition of an exacerbation of insomnia upon drug discontinuation for 1-2 days reported to occur even with short-term use. Sedative, hypnotic, or anxiolytic drugs with short durations of action are most likely to produce complaints of rebound insomnia, whereas those with longer durations of action are more often associated with daytime sleepiness. Any sedative, hypnotic, or anxiolytic drug can potentially cause daytime sedation, withdrawal, or re- bound insomnia. Amphetamines and related substances and other stimulants. Sleep disorders induced by amphetamine and related substances and other stimulants are characterized by insomnia during intoxication and excessive sleepiness during withdrawal. During acute intoxication, stimulants reduce the total amount of sleep, increase sleep latency and sleep continuity distur- bances, and decrease REM sleep. Slow-wave sleep tends to be reduced. During withdrawal from chronic stimulant use, there is both prolonged nocturnal sleep duration and excessive daytime sleepiness. Multiple sleep latency tests may show increased daytime sleepiness dur- ing the withdrawal phase. Drugs like 3,4-methylenedioxymethamphetamine (MDMA; “ec- stasy”) and related substances lead to restless and disturbed sleep within 48 hours of intake; frequent use of these compounds is associated with persisting symptoms of anxiety, depres- sion, and sleep disturbances, even during longer-term abstinence. Tobacco. Chronic tobacco consumption is associated primarily with symptoms of insom- nia, decreased slow-wave sleep with a reduction of sleep efficiency, and increased daytime sleepiness. Withdrawal from tobacco can lead to impaired sleep. Individuals who smoke heavily may experience regular nocturnal awakenings caused by tobacco craving. Other or unknown substances/medications. Other substances/ medications may pro- duce sleep disturbances, particularly medications that affect the central or autonomic nervous systems (e.g., adrenergic agonists and antagonists, dopamine agonists and antag- onists, cholinergic agonists and antagonists, serotonergic agonists and antagonists, anti- histamines, corticosteroids). Insomnia in children can be identified by either a parent or the child. Often the child has a clear sleep disturbance associated with initiation of a medication but may not report symptoms, although parents observe the sleep disturbances. The use of some illicit sub- stances (e.g., cannabis, ecstasy) is prevalent in adolescence and early adulthood. Insomnia sideration of whether the sleep disturbance is due to consumption of these substances. Help-seeking behavior for the sleep disturbance in these age groups is limited, and thus corroborative report may be elicited from a parent, caregiver, or teacher. Older individuals take more medications and are at increased risk for developing a substance/medication- induced sleep disorder. They may interpret sleep disturbance as part of normal aging and fail to report symptoms. Individuals with major neurocognitive disorder (e.g., dementia) toms, making corroborative report from caregiver(s) particularly important. are normative for certain age groups. They are relevant for, and likely applicable to, the type of sleep disturbance encountered (see the chapter "Substance-Related and Addictive Disorders” for descriptions of respective substance use disorders).Temperamental. Substance use generally precipitates or accompanies insomnia in vul- nerable individuals. Thus, presence of insomnia in response to stress or change in sleep en- sleep disorder. A similar risk may be present for individuals with other sleep disorders (e.g., individuals with hypersomnia who use stimulants). The consumption of substances, including prescribed medications, may depend in part on cultural background and specific local drug regulations. Gender-specific prevalences (i.e., females affected more than males at a ratio of about 2:1) exist for patterns of consumption of some substances (e.g., alcohol). The same amount and duration of consumption of a given substance may lead to highly different sleep-related outcomes in males and females based on, for example, gender-specific differences in hepatic functioning. Each of the substance/medication-induced sleep disorders produces electroencephalo- graphic sleep patterns that are associated with, but cannot be considered diagnostic of, other disorders. The electroencephalographic sleep profile for each substance is related to the stage of use, whether intake/ intoxication, chronic use, or withdrawal following discontinu- ation of the substance. All—night polysomnography can help define the severity of insomnia complaints, while the multiple sleep latency test provides information about the severity of daytime sleepiness. Monitoring of nocturnal respiration and periodic limb movements with havior. Sleep diaries for 2 weeks and actigraphy are considered helpful in confirming the presence of substance/medication-induced sleep disorder. Drug screening can be of use when the individual is not aware or unwilling to relate information about substance intake. While there are many functional consequences associated with sleep disorders, the only unique consequence for substance/medication-induced sleep disorder is increased risk for relapse. The degree of sleep disturbance during alcohol withdrawal (e.g., REM sleep rebound predicts risk of relapse of drinking). Monitoring of sleep quality and daytime whether an individual is at increased risk for relapse. Substance intoxication or substance withdrawal. Sleep disturbances are commonly en- countered in the context of substance intoxication or substance discontinuation/with- drawal. A diagnosis of substance/ medication-induced sleep disorder should be made instead of a diagnosis of substance intoxication or substance withdrawal only when the sleep disturbance is predominant in the clinical picture and is sufficiently severe to war- rant independent clinical attention. Delirium. If the substance/ medication-induced sleep disturbance occurs exclusively dur- ing the course of a delirium, it is not diagnosed separately. Other sleep disorders. A substance/ medication—induced sleep disorder is distinguished from another sleep disorder if a substance/medication is judged to be etiologically related to the symptoms. A substance/medication-induced sleep disorder attributed to a prescribed medication for a mental disorder or medical condition must have its onset while the individual is receiving the medication or during discontinuation, if there is a discontinuation/with- drawal syndrome associated with the medication. Once treatment is discontinued, the sleep disturbance will usually remit within days to several weeks. If symptoms persist beyond 4 weeks, other causes for the sleep disturbancehrelated symptoms should be considered. Not infrequently, individuals with another sleep disorder use medications or drugs of abuse to self—medicate their symptoms (e.g., alcohol for management of insomnia). If the substance/ medication is judged to play a significant role in the exacerbation of the sleep disturbance, an additional diagnosis of a substance/medication-induced sleep disorder may be warranted. Sleep disorder due to another medical condition. Substance/medication-induced sleep disorder and sleep disorder associated with another medical condition may produce sim- ilar symptoms of insomnia, daytime sleepiness, or a parasomnia. Many individuals with other medical conditions that cause sleep disturbance are treated with medications that may also cause sleep disturbances. The chronology of symptoms is the most important fac- tor in distinguishing between these two sources of sleep symptoms. Difficulties with sleep that clearly preceded the use of any medication for treatment of a medical condition would suggest a diagnosis of sleep disorder associated with another medical condition. Con— versely, sleep symptoms that appear only after the initiation of a particular medication/ substance suggest a substance/medication-induced sleep disorder. If the disturbance is comorbid with another medical condition and is also exacerbated by substance use, both diagnoses (i.e., sleep disorder associated with another medical condition and substance/ medication-induced sleep disorder) are given. When there is insufficient evidence to de- termine whether the sleep disturbance is attributable to a substance/ medication or to an— other medical condition or is primary (i.e., not due to either a substance/medication or another medical condition), a diagnosis of other specified sleep-wake disorder or unspec- ified sleep—wake disorder is indicated. See the ”Comorbidity" sections for other sleep disorders in this chapter, including insom- nia, hypersomnolence, central sleep apnea, sleep-related hypoventilation, and circadian rhythm sleep-wake disorders, shift work type. Relationship to Internationai Ciassification ofThe International Classification of Sleep Disorders, 2nd Edition (ICSD-2), lists sleep disorders “due to drug or substance” under their respective phenotypes (e.g., insomnia, hypersomnia). 780.52 (647.09)This category applies to presentations in which symptoms characteristic of insomnia disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for insomnia disorder or any of the disorders in the sleep-wake disorders diagnostic class. The other specified insomnia dis- order category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for insomnia disorder or any specific sleep—wake disorder. This is done by recording ”other specified insomnia disorder” followed by the specific reason (e.g., “brief insomnia disorder). Examples of presentations that can be specified using the “other specified" designation include the following: 1. Brief insomnia disorder: Duration is less than 3 months. 2. Restricted to nonrestorative sleep: Predominant complaint is nonrestorative sleep unaccompanied by other sleep symptoms such as difficulty falling asleep or remaining asleep. 780.52 (647.00)This category applies to presentations in which symptoms characteristic of insomnia disor- der that cause clinically significant distress or impairment in social, occupational. or other important areas of functioning predominate but do not meet the full criteria for insomnia dis- order or any of the disorders in the sleep-wake disorders diagnostic class. The unspecified insomnia disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for insomnia disorder or a specific sleep-wake dis- order, and includes presentations in which there is insufficient information to make a more specific diagnosis. 780.54 (647.19)This category applies to presentations in which symptoms characteristic of hypersomno- lence disorder that cause clinically significant distress or impairment in social, occupation- al, or other important areas of functioning predominate but do not meet the full criteria for hypersomnolence disorder or any of the disorders in the sleep-wake disorders diagnostic class. The other specified hypersomnolence disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for hypersomnolence disorder or any specific sleep-wake disorder. This is done by recording “other specified hypersomnolence disorder” followed by the spe- cific reason (e.g., “brief-duration hypersomnolence," as in Kieine-Levin syndrome). 780.54 (647.10)This category applies to presentations in which symptoms characteristic of hypersomno- lence disorder that cause clinically significant distress or impairment in social, occupation- al, or other important areas of functioning predominate but do not meet the full criteria for hypersomnolence disorder or any of the disorders in the sleep-wake disorders diagnostic class. The unspecified hypersomnolence disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for hypersom- nolence disorder or a specific sleep-wake disorder. and includes presentations in which there is insufficient information to make a more specific diagnosis. 780.59 (647.8)This category applies to presentations in which symptoms characteristic of a sleep-wake disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the sleep-wake disorders diagnostic class and do not qualify for a diagno- sis of other specified insomnia disorder or other specified hypersomnolence disorder. The other specified sleep-wake disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific sleep-wake disorder. This is done by recording “other specified sleep-wake disorder" followed by the specific reason (e.g., "repeated arousals during rapid eye movement sleep without polysomnography or history of Parkinson's disease or other synucleinopathy"). 780.59 (0.47.9)This category applies to presentations in which symptoms characteristic of a sleep-wake disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the tull criteria for any of the disorders in the sleep-wake disorders diagnostic class and do not qualify for a diagno- sis of unspecified insomnia disorder or unspecified hypersomnolence disorder. The un- specified sleep-wake disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific sleep-wake disorder, and includes presentations in which there is insufficient information to make a more spe- cific diagnosis. Sexual dYSIU I'lCIIOITS include delayed ejaculation, erectile disorder, female orgasmic disorder, female sexual interest/arousal disorder, genito—pelvic pain/penetration disorder, male hypoactive sexual desire disorder, premature (early) ejaculation, substance/medication- induced sexual dysfunction, other specified sexual dysfunction, and unspecified sexual dys- function. Sexual dysfunctions are a heterogeneous group of disorders that are typically char- acterized by a clinically significant disturbance in a person’s ability to respond sexually or to experience sexual pleasure. An individual may have several sexual dysfunctions at the same time. In such cases, all of the dysfunctions should be diagnosed. Clinical judgment should be used to determine if the sexual difficulties are the result of inadequate sexual stimulation; in these cases, there may still be a need for care, but a di- agnosis of a sexual dysfunction would not be made. These cases may include, but are not limited to, conditions in which lack of knowledge about effective stimulation prevents the experience of arousal or orgasm. Subtypes are used to designate the onset of the difficulty. In many individuals with sexual dysfunctions, the time of onset may indicate different etiologies and interventions. Lifelong refers to a sexual problem that has been present from first sexual experiences, and acquired applies to sexual disorders that develop after a period of relatively normal sexual function. Generalized refers to sexual difficulties that are not limited to certain types of stimulation, situations, or partners, and situational refers to sexual difficulties that only oc- cur with certain types of stimulation, situations, or partners. In addition to the lifelong/ acquired and generalized/situational subtypes, a number of factors must be considered during the assessment of sexual dysfunction, given that they may be relevant to etiology and/ or treatment, and that may contribute, to varying degrees, across individuals: 1) partner factors (e.g., partner’s sexual problems; partner’s health sta— tus); 2) relationship factors (e.g., poor communication; discrepancies in desire for sexual activity); 3) individual vulnerability factors (e.g., poor body image; history of sexual or emo- tional abuse), psychiatric comorbidity (e.g., depression, anxiety), or stressors (e.g., job loss, bereavement); 4) cultural or religious factors (e.g., inhibitions related to prohibitions against prognosis, course, or treatment. Clinical judgment about the diagnosis of sexual dysfunction should take into consideration cultural factors that may influence expectations or engender prohibitions about the experience of sexual pleasure. Aging may be associated with a normative decrease in sexual response. Sexual response has a requisite biological underpinning, yet is usually experienced in an intrapersonal, interpersonal, and cultural context. Thus, sexual function involves a com- plex interaction among biological, sociocultural, and psychological factors. In many clinical contexts, a precise understanding of the etiology of a sexual problem is unknown. Nonethe- less, a sexual dysfunction diagnosis requires ruling out problems that are better explained by a nonsexual mental disorder, by the effects of a substance (e.g., drug or medication), by a medical condition (e.g., due to pelvic nerve damage), or by severe relationship distress, partner violence, or other stressors. If the sexual dysfunction is mostly explainable by another nonsexual mental disorder (e.g., depressive or bipolar disorder, anxiety disorder, posttraumatic stress disorder, psychotic dis- order), then only the other mental disorder diagnosis should be made. If the problem is thought to be better explained by the use / misuse or discontinuation of a drug or substance, it should be diagnosed accordingly as a substance/medication-induced sexual dysfunction. If the sexual dysfunction is attributable to another medical condition (e.g., peripheral neuropa- thy), the individual would not receive a psychiatric diagnosis. If severe relationship distress, partner violence, or significant stressors better explain the sexual difficulties, then a sexual dys- function diagnosis is not made, but an appropriate V or Z code for the relationship problem or stressor may be listed. In many cases, a precise etiological relationship between another con- dition (e.g., a medical condition) and a sexual dysfunction cannot be established. Diagnostic Criteria 302.74 (F5232)A. Either of the following symptoms must be experienced on almost all or all occasions (approximately 75%—100%) of partnered sexual activity (in identified situational con- texts or, ii generalized, in all contexts), and without the individual desiring delay: 1. Marked delay in ejaculation. 2. Marked infrequency or absence of ejaculation.B. The symptoms in Criterion A have persisted for a minimum duration of approximately 6 months. C. The symptoms in Criterion A cause clinically significant distress in the individual. D. The sexual dysfunction is not better explained by a nonsexual mental disorder or as a consequence of severe relationship distress or other significant stressors and is not at- tributable to the effects of a substance/medication or another medical condition. Specify whether:Lifelong: The disturbance has been present since the individual became sexually active. Acquired: The disturbance began after a period of relatively normal sexual function. Specify whether:Generalized: Not limited to certain types of stimulation, situations, or partners. Situational: Only occurs with certain types of stimulation, situations, or partners. Specify current severity:Mild: Evidence of mild distress over the symptoms in Criterion A. Moderate: Evidence of moderate distress over the symptoms in Criterion A. Severe: Evidence of severe or extreme distress over the symptoms in Criterion A. The distinguishing feature of delayed ejaculation is a marked delay in or inability to achieve ejaculation (Criterion A). The man reports difficulty or inability to ejaculate de- spite the presence of adequate sexual stimulation and the desire to ejaculate. The present- ing complaint usually involves partnered sexual activity. In most cases, the diagnosis will be made by self—report of the individual. The definition of "delay” does not have precise boundaries, as there is noconsensus as to what constitutes a reasonable time to reach or- gasm or what is unacceptably long for most men and their sexual partners. The man and his partner may report prolonged thrusting to achieve orgasm to the point of exhaustion or genital discomfort and then ceasing efforts. Some men may report avoiding sexual activity because of a repetitive pattern of difficulty ejaculating. Some sexual partners may report feeling less sexually attractive because their partner cannot ejaculate easily. In addition to the subtypes ”lifelong/acquired” and ”generalized/ situational,” the fol— lowing five factors must be considered during assessment and diagnosis of delayed ejacu- lation, given that they may be relevant to etiology and/ or treatment: 1) partner factors (e.g., partner’s sexual problems, partner’s health status); 2) relationship factors (e.g., poor com- munication, discrepancies in desire for sexual activity); 3) individual vulnerability factors (e.g., poor body image; history of sexual or emotional abuse), psychiatric comorbidity (e.g., depression, anxiety), or stressors (e.g., job loss, bereavement); 4) cultural/religious factors (e.g., inhibitions related to prohibitions against sexual activity; attitudes toward sexuality); and 5) medical factors relevant to prognosis, course, or treatment. Each of these factors may contribute differently to the presenting symptoms of different men with this disorder. Prevalence is unclear because of the lack of a precise definition of this syndrome. It is the least common male sexual complaint. Only 75% of men report always ejaculating during sexual activity, and less than 1% of men will complain of problems with reaching ejacula- tion that last more than 6 months. Lifelong delayed ejaculation begins with early sexual experiences and continues through- out life. By definition, acquired delayed ejaculation begins after a period of normal sexual function. There is minimal evidence concerning the course of acquired delayed ejacula- tion. The prevalence of delayed ejaculation appears to remain relatively constant until around age 50 years, when the incidence begins to increase significantly. Men in their 805 report twice as much difficulty ejaculating as men younger than 59 years. Genetic and physiological. Age-related loss of the fast-conducting peripheral sensory nerves and age-related decreased sex steroid secretion may be associated with the increase in delayed ejaculation in men older than 50 years. Complaints of ejaculatory delay vary across countries and cultures. Such complaints are more common among men in Asian populations than in men living in Europe, Australia, or the United States. This variation may be attributable to cultural or genetic differences between cultures. Functional Consequences of Delayed EjaculationDifficulty with ejaculation may contribute to difficulties in conception. Delayed ejacula- tion is often associated with considerable psychological distress in one or both partners. Another medical condition. The major differential diagnosis is between delayed ejacu- lation fully explained by another medical illness or injury and delayed ejaculation with a psychogenic, idiopathic, or combined psychological and medical etiology. A situational aspect to the complaint is suggestive of a psychological basis for the problem (e.g., men who can ejaculate during sexual activity with one sex but not the other; men who can ejac— ulate with one partner but not another of the same sex; men with paraphilic arousal pat— terns; men who require highly ritualized activity to ejaculate during partnered sexual activity). Another medical illness or injury may produce delays in ejaculation independent of psychological issues. For example, inability to ejaculate can be caused by interruption of the nerve supply to the genitals, such as can occur after traumatic surgical injury to the lumbar sympathetic ganglia, abdominoperitoneal surgery, or lumbar sympathectomy. Ejaculation is thought to be under autonomic nervous system control involving the hypo- gastric (sympathetic) and pudendal (parasympathetic) nerves. A number of neurodegen- erative diseases, such as multiple sclerosis and diabetic and alcoholic neuropathy, can cause inability to ejaculate. Delayed ejaculation should also be differentiated from retro— grade ejaculation (i.e., ejaculation into the bladder), which may follow transurethral pros- tatic resection. Substance/medication use. A number of pharmacological agents, such as antidepres- sants, antipsychotics, alpha sympathetic drugs, and opioid drugs, can cause ejaculatory problems. Dysfunction with orgasm. It is important in the history to ascertain whether the com- plaint concerns delayed ejaculation or the sensation of orgasm, or both. Ejaculation occurs in the genitals, whereas the experience of orgasm is believed to be primarily subjective. Ejaculation and orgasm usually occur together but not always. For example, a man with a normal ejaculatory pattern may complain of decreased pleasure (i.e., anhedonic ejacula- tion). Such a complaint would not be coded as delayed ejaculation but could be coded as other specified sexual dysfunction or unspecified sexual dysfunction. There is some evidence to suggest that delayed ejaculation may be more common in severe forms of major depressive disorder. Diagnostic Criteria 302.72 (F52.21)A. At least one of the three following symptoms must be experienced on almost all or all (approximately 75%—100%) occasions of sexual activity (in identified situational con- texts or, if generalized, in all contexts): 1. Marked difficulty in obtaining an erection during sexual activity. 2. Marked difficulty in maintaining an erection until the completion of sexual activity. 3. Marked decrease in erectile rigidity.B. The symptoms in Criterion A have persisted for a minimum duration of approximately 6 months. C. The symptoms in Criterion A cause clinically significant distress in the individual. D. The sexual dysfunction is not better explained by a nonsexual mental disorder or as a consequence of severe relationship distress or other significant stressors and is not at- tributable to the effects of a substance/medication or another medical condition. Specify whether:Lifelong: The disturbance has been present since the individual became sexually ac- tive. Acquired: The disturbance began after a period of relatively normal sexual function. Specify whether:Generalized: Not limited to certain types of stimulation, situations, or partners. Situational: Only occurs with certain types of stimulation, situations, or partners. Specify current severity:Mild: Evidence of mild distress over the symptoms in Criterion A. Moderate: Evidence of moderate distress over the symptoms in Criterion A. Severe: Evidence of severe or extreme distress over the symptoms in Criterion A. The essential feature of erectile disorder is the repeated failure to obtain or maintain erec- tions during partnered sexual activities (Criterion A). A careful sexual history is necessary to ascertain that the problem has been present for a significant duration of time (i.e., at least approximately 6 months) and occurs on the majority of sexual occasions (i.e., at least 75% of the time). Symptoms may occur only in specific situations involving certain types of stimulation or partners, or they may occur in a generalized manner in all types of situa- tions, stimulation, or partners. Many men with erectile disorder may have low self—esteem, low self—confidence, and a de- creased sense of masculinity, and may experience depressed affect. Fear and/ or avoid- ance of future sexual encounters may occur. Decreased sexual satisfaction and reduced sexual desire in the individual’s partner are common. In addition to the subtypes ”lifelong/acquired” and “generalized/ situational,” the fol- lowing five factors must be considered during assessment and diagnosis of erectile disorder given that they may be relevant to etiology and/ or treatment: 1) partner factors (e.g., part- ner’s sexual problems, partner’s health status); 2) relationship factors (e.g., poor communi- cation, discrepancies in desire for sexual activity); 3) individual vulnerability factors (e.g., poor body image, history of sexual or emotional abuse), psychiatric comorbidity (e.g., de- pression, anxiety), or stressors (e.g., job loss, bereavement); 4) cultural/religious factors (e.g., inhibitions related to prohibitions against sexual activity; attitudes toward sexuality); and 5) medical factors relevant to prognosis, course, or treatment. Each of these factors may con- tribute differently to the presenting symptoms of different men with this disorder. The prevalence of lifelong versus acquired erectile disorder is unknown. There is a strong age-related increase in both prevalence and incidence of problems with erection, particu- larly after age 50 years. Approximately 13%—21% of men ages 40—80 years complain of oc— casional problems with erections. Approximately 2% of men younger than age 40—50 years complain of frequent problems with erections, whereas 40%—50% of men older than 60—70 years may have significant problems with erections. About 20% of men fear erectile prob- lems on their first sexual experience, whereas approximately 8% experienced erectile prob- lems that hindered penetration during their first sexual experience. Erectile failure on first sexual attempt has been found to be related to having sex with a previously unknown partner, concomitant use of drugs or alcohol, not wanting to have sex, and peer pressure. There is minimal evi—2t most of these problems spontaneously re- mit without professional intervention, but some men may continue to have episodic prob- lems. In contrast, acquired erectile disorder is often associated with biological factors such as diabetes and cardiovascular disease. Acquired erectile disorder is likely to be persistent in most men. The natural history of lifelong erectile disorder is unknown. Clinical observation sup- ports the association of lifelong erectile disorder with psychological factors that are self- limiting or responsive to psychological interventions, whereas, as noted above, acquired erectile disorder is more likely to be related to biological factors and to be persistent. The incidence of erectile disorder increases with age. A minority of men diagnosed as having moderate erectile failure may experience spontaneous remission of symptoms without medical intervention. Distress associated with erectile disorder is lower in older men as compared with younger men. Temperamental. Neurotic personality traits may be associated with erectile problems in col- lege students, and submissive personality traits may be associated with erectile problems in men age 40 years and older. Alexithymiu (i.e., deficits in cognitive processing of emotions) is common in men diagnosed with "psychogenic” erectile dysfunction. Erectile problems are common in men diagnosed with depression and posttraumatic stress disorder. Course modifiers. Risk factors for acquired erectile disorder include age, smoking to- bacco, lack of physical exercise, diabetes, and decreased desire. Complaints of erectile disorder have been found to vary across countries. It is unclear to what extent these differences represent differences in cultural expectations as opposed to genuine differences in the frequency of erectile failure. employed to help differentiate organic from psychogenic erectile problems on the as- ical etiology to the problem. A number of other diagnostic procedures may be employed depending on the clinician’s assessment of their relevance given the individual’s age, co- morbid medical problems, and clinical presentation. Doppler ultrasonography and intra- vascular injection of vasoactive drugs, as well as invasive diagnostic procedures such as dynamic infusion cavernosography, can be used to assess vascular integrity. Pudendal nerve conduction studies, including somatosensory evoked potentials, can be employed when a peripheral neuropathy is suspected. In men also complaining of decreased sexual desire, serum bioavailable or free testosterone is frequently assessed to determine if the difficulty is secondary to endocrinological factors. Thyroid function may also be assessed. Determination of fasting serum glucose is useful to screen for the presence of diabetes mel- litus. The assessment of serum lipids is important, as erectile disorder in men 40 years and older is predictive of the future risk of coronary artery disease. Functionai Consequences of Erectiie DisorderErectile disorder can interfere with fertility and produce both individual and interpersonal distress. Fear and/ or avoidance of sexual encounters may interfere with the ability to de- velop intimate relationships. Nonsexual mental disorders. Major depressive disorder and erectile disorder are closely associated, and erectile disorder accompanying severe depressive disorder may occur. Normal erectile function. The differential should include consideration of normal erec- tile function in men with excessive expectations. Substance/medication use. Another major differential diagnosis is whether the erectile problem is secondary to substance/medication use. An onset that coincides with the be- ginning of substance/medication use and that dissipates with discontinuation of the sub- stance/medication or dose reduction is suggestive of a substance/ medication-induced sexual dysfunction. Another medical condition. The most difficult aspect of the differential diagnosis of erec- tile disorder is ruling out erectile problems that are fully explained by medical factors. Such cases would not receive a diagnosis of a mental disorder. The distinction between erectile disorder as a mental disorder and erectile dysfunction as the result of another medical con- dition is usually unclear, and many cases will have complex, interactive biological and psy- chiatric etiologies. If the individual is older than 40—50 years and/ or has concomitant medical problems, the differential diagnosis should include medical etiologies, especially vascular disease. The presence of an organic disease known to cause erectile problems does not confirm a causal relationship. For example, a man with diabetes mellitus can develop erectile disorder in response to psychological stress. In general, erectile dysfunction due to organic factors is generalized and gradual in onset. An exception would be erectile problems after traumatic injury to the nervous innervation of the genital organs (e.g., spinal cord injury). Erectile problems that are situational and inconsistent and that have an acute onset after a stressful life event are most often due to psychological events. An age of less than 40 years is also suggestive of a psychological etiology to the difficulty. Other sexual dysfunctions. Erectile disorder may coexist with premature (early) ejacu- lation and male hypoactive sexual desire disorder. Erectile disorder can be comorbid with other sexual diagnoses, such as premature (early) ejaculation and male hypoactive sexual desire disorder, as well as with anxiety and de- pressive disorders. Erectile disorder is common in men with lower urinary tract symptoms related to prostatic hypertrophy. Erectile disorder may be comorbid with dyslipidemia, car- diovascular disease, hypogonadism, multiple sclerosis, diabetes mellitus, and other diseases that interfere with the vascular, neurological, or endocrine function necessary for normal erectile function. Relationship to International Classification of DiseasesErectile response is coded as failure of genital response in ICD-lO (F22). Diagnostic Criteria 302.73 (F52.31)A. Presence of either of the following symptoms and experienced on almost all or all (ap- proximately 75%—100%) occasions of sexual activity (in identified situational contexts or, if generalized, in all contexts): 1. Marked delay in, marked infrequency of, or absence of orgasm. 2. Markedly reduced intensity of orgasmic sensations.B. The symptoms in Criterion A have persisted tor a minimum duration of approximately 6 months. C. The symptoms in Criterion A cause clinically significant distress in the individual. D. The sexual dysfunction is not better explained by a nonsexual mental disorder or as a consequence of severe relationship distress (e.g., partner violence) or other significant stressors and is not attributable to the effects of a substance/medication or another medical condition. Specify whether:Lifelong: The disturbance has been present since the individual became sexually active. Acquired: The disturbance began after a period of relatively normal sexual function. Specify whether:Generalized: Not limited to certain types of stimulation, situations, or partners. Situational: Only occurs with certain types of stimulation, situations, or partners. Specify it:Never experienced an orgasm under any situation.Specify current severity:Mild: Evidence of mild distress over the symptoms in Criterion A. Moderate: Evidence of moderate distress over the symptoms in Criterion A. Severe: Evidence of severe or extreme distress over the symptoms in Criterion A. Female orgasmic disorder is characterized by difficulty experiencing orgasm and / or markedly reduced intensity of orgasmic sensations (Criterion A). Women show wide vari- ability in the type or intensity of stimulation that elicits orgasm. Similarly, subjective descrip- tions of orgasm are extremely varied, suggesting that it is experienced in very different ways, both across women and on different occasions by the same woman. For a diagnosis of female orgasmic disorder, symptoms must be experienced on almost all or all (approx- imately 75%—100%) occasions of sexual activity (in identified situational contexts or, if generalized, in all contexts) and have a minimum duration of approximately 6 months. The use of the minimum severity and duration criteria is intended to distinguish transient orgasm difficulties from more persistent orgasmic dysfunction. The inclusion of ”approx- does not meet the recommended 6-month threshold. For a woman to have a diagnosis of female orgasmic disorder, clinically significant dis- tress must accompany the symptoms (Criterion C). In many cases of orgasm problems, the causes are multifactorial or cannot be determined. If female orgasmic disorder is deemed to be better explained by another mental disorder, the effects of a substance/ medication, or a medical condition, then a diagnosis of female orgasmic disorder would not be made. Finally, if interpersonal or significant contextual factors, such as severe relationship dis- tress, intimate partner violence, or other significant stressors, are present, then a diagnosis of female orgasmic disorder would not be made. Many women require clitoral stimulation to reach orgasm, and a relatively small pro- portion of women report that they always experience orgasm during penile-vaginal inter- course. Thus, a woman’s experiencing orgasm through clitoral stimulation but not during intercourse does not meet criteria for a clinical diagnosis of female orgasmic disorder. It is also important to consider whether orgasmic difficulties are the result of inadequate sex- ual stimulation; in these cases, there may still be a need for care, but a diagnosis of female orgasmic disorder would not be made. Associations between specific patterns of personality traits or psychopathology and orgas- mic dysfunction have generally not been supported. Compared with women without the disorder, some women with female orgasmic disorder may have greater difficulty com- municating about sexual issues. Overall sexual satisfaction, however, is not strongly cor- related with orgasmic experience. Many women report high levels of sexual satisfaction despite rarely or never experiencing orgasm. Orgasmic difficulties in women often co- occur with problems related to sexual interest and arousal. In addition to the subtypes "lifelong/ acquired” and ”generalized / situational,” the fol- lowing five factors must be considered during assessment and diagnosis of female orgas- mic disorder given that they may be relevant to etiology and/ or treatment: 1) partner factors (e.g., partner’s sexual problems, partner’s health status); 2) relationship factors (e.g., poor communication, discrepancies in desire for sexual activity); 3) individual vul- nerability factors (e.g., poor body image, history of sexual or emotional abuse), psychiatric comorbidity (e.g., depression, anxiety), or stressors (e.g., job loss, bereavement); (4) cul- tural/religious factors (e.g., inhibitions related to prohibitions against sexual activity; attitudes toward sexuality); and 5) medical factors relevant to prognosis, course, or treat- ment. Each of these factors may contribute differently to the presenting symptoms of dif- ferent women with this disorder. Reported prevalence rates for female orgasmic problems in women vary widely, from 10% to 42%, depending on multiple factors (e.g., age, culture, duration, and severity of symp- toms); however, these estimates do not take into account the presence of distress. Only a proportion of women experiencing orgasm difficulties also report associated distress. Variation in how symptoms are assessed (e.g., the duration of symptoms and the recall pe- riod) also influence prevalence rates. Approximately 10% of women do not experience or- gasm throughout their lifetime. By definition, lifelong female orgasmic disorder indicates that the orgasmic difficulties have always been present, whereas the acquired subtype would be assigned if the woman’s or- gasmic difficulties developed after a period of normal orgasmic functioning. A woman’s first experience of orgasm can occur any time from the prepubertal period to well into adulthood. Women show a more variable pattern in age at first orgasm than do men, and women’s reports of having experienced orgasm increase with age. Many women learn to experience orgasm as they experience a wide variety of stimulation and acquire more knowledge about their bodies. Women’s rates of orgasm consistency (defined as ”usually or always” experiencing orgasm) are higher during masturbation than during sexual activity with a partner. Temperamental. A wide range of psychological factors, such as anxiety and concerns about pregnancy, can potentially interfere with a woman’s ability to experience orgasm. Environmental. There is a strong association between relationship problems, physical health, and mental health and orgasm difficulties in women. Sociocultural factors (e.g., gender role expectations and religious norms) are also important influences on the expe- rience of orgasmic difficulties. Genetic and physiological. Many physiological factors may influence a woman’s expe- rience of orgasm, including medical conditions and medications. Conditions such as mul- tiple sclerosis, pelvic nerve damage from radical hysterectomy, and spinal cord injury can all influence orgasmic functioning in women. Selective serotonin reuptake inhibitors are known to delay or inhibit orgasm in women. Women with vulvovaginal atrophy (charac- terized by symptoms such as vaginal dryness, itching, and pain) are significantly more likely to report orgasm difficulties than are women without this condition. Menopausal status is not consistently associated with the likelihood of orgasm difficulties. There may be a significant genetic contribution to variation in female orgasmic function. However, psychological, sociocultural, and physiological factors likely interact in complex ways to influence women’s experience of orgasm and of orgasm difficulties. The degree to which lack of orgasm in women is regarded as a problem that requires treat- ment may vary depending on cultural context. In addition, women differ in how important orgasm is to their sexual satisfaction. There may be marked sociocultural and generational differences in women’s orgasmic ability. For example, the prevalence of inability to reach or- gasm has ranged from 17.7% (in Northern Europe) to 42.2% (in Southeast Asia). Although measurable physiological changes occur during female orgasm, including changes in hormones, pelvic floor musculature, and brain activation, there is significant variability in these indicators of orgasm across women. In clinical situations, the diagnosis of female orgasmic disorder is based on a woman’s self—report. Functional Consequences of Female Orgasmic DisorderThe functional consequences of female orgasmic disorder are unclear. Although there is a strong association between relationship problems and orgasmic difficulties in women, it is unclear whether relationship factors are risk factors for orgasmic difficulties or are conse- quences of those difficulties. Nonsexual mental disorders. Nonsexual mental disorders, such as major depressive disorder, which is characterized by markedly diminished interest or pleasure in all, or al- most all, activities, may explain female orgasmic disorder. If the orgasmic difficulties are better explained by another mental disorder, then a diagnosis of female orgasmic disorder would not be made. Substance/medication-induced sexual dysfunction. Substance/medication use may explain the orgasmic difficulties. Another medical condition. If the disorder is due to another medical condition (e.g., multiple sclerosis, spinal cord injury), then a diagnosis of female orgasmic disorder would not be made. Interpersonal factors. If interpersonal or significant contextual factors, such as severe relationship distress, intimate partner violence, or other significant stressors, are associ- ated with the orgasmic difficulties, then a diagnosis of female orgasmic disorder would not be made. Other sexual dysfunctions. Female orgasmic disorder may occur in association with other sexual dysfunctions (e.g., female sexual interest/ arousal disorder). The presence of another sexual dysfunction does not rule out a diagnosis of female orgasmic disorder. Occasional or- gasmic difficulties that are short-term or infrequent and are not accompanied by clinically sig- nificant distress or impairment are not diagnosed as female orgasmic disorder. A diagnosis is also not appropriate if the problems are the result of inadequate sexual stimulation. Women with female orgasmic disorder may have co-occurring sexual interest/arousal difficulties. Women with diagnoses of other nonsexual mental disorders, such as major de- pressive disorder, may experience lower sexual interest/arousal, and this may indirectly increase the likelihood of orgasmic difficulties. Diagnostic Criteria 302.72 (F5222)A. Lack of, or significantly reduced, sexual interest/arousal, as manifested by at least three of the following: 1. Absent/reduced interest in sexual activity. 2. Absent/reduced sexual/erotic thoughts or fantasies.3. No/reduced initiation of sexual activity, and typically unreceptive to a partner’s at- tempts to initiate. 4. Absent/reduced sexual excitemenl/pleasure during sexual activity in almost all or or, if generalized, in all contexts). 5. Absent/reduced sexual interest/arousal in response to any internal or external sex- ual/erotic cues (e.g., written, verbal, visual). 6. Absent/reduced genital or nongenital sensations during sexual activity in almost all texts or, if generalized, in all contexts). B. The symptoms in Criterion A have persisted for a minimum duration of approximately 6 months. C. The symptoms in Criterion A cause clinically significant distress in the individual. D. The sexual dysfunction is not better explained by a nonsexuai mental disorder or as a consequence of severe relationship distress (e.g., partner violence) or other significant stressors and is not attributable to the effects of a substance/medication or another medical condition. Specify whether:Lifelong: The disturbance has been present since the individual became sexually active. Acquired: The disturbance began after a period of relatively normal sexual function. Specify whether:Generalized: Not limited to certain types of stimulation, situations, or partners. Situational: Only occurs with certain types of stimulation, situations, or partners. Specify current severity:Mild: Evidence of mild distress over the symptoms in Criterion A. Moderate: Evidence of moderate distress over the symptoms in Criterion A. Severe: Evidence of severe or extreme distress over the symptoms in Criterion A. In assessing female sexual interest/arousal disorder, interpersonal context must be taken into account. A "desire discrepancy," in which a woman has lower desire for sexual activ- ity than her partner, is not sufficient to diagnose female sexual interest/arousal disorder. In order for the criteria for the disorder to be met, there must be absence or reduced fre- quency or intensity of at least three of six indicators (Criterion A) for a minimum duration of approximately 6 months (Criterion B). There may be different symptom profiles across women, as well as variability in how sexual interest and arousal are expressed. For exam- ple, in one woman, sexual interest/arousal disorder may be expressed as a lack of interest in sexual activity, an absence of erotic or sexual thoughts, and reluctance to initiate sexual activity and respond to a partner’s sexual invitations. In another woman, an inability to be- come sexually excited, to respond to sexual stimuli with sexual desire, and a correspond- ing lack of signs of physical sexual arousal may be the primary features. Because sexual desire and arousal frequently coexist and are elicited in response to adequate sexual cues, the criteria for female sexual interest/arousal disorder take into account that difficulties in desire and arousal often simultaneously characterize the complaints of women with this disorder. Short-term changes in sexual interest or arousal are common and may be adaptive responses to events in a woman’s life and do not represent a sexual dysfunction. Diagnosis of female sexual interest/arousal disorder requires a minimum duration of symptoms of approximately 6 months as a reflection that the symptoms must be a persistent problem. The estimation of persistence may be determined by clinical judgment when a duration of 6 months cannot be ascertained precisely. There may be absent or reduced frequency or intensity of interest in sexual activity (Crite- rion A1), which was previously termed hypoactive sexual desire disorder. The frequency or inten— sity of sexual and erotic thoughts or fantasies may be absent or reduced (Criterion A2). The expression of fantasies varies widely across women and may include memories of past sexual experiences. The normative decline in sexual thoughts with age should be taken into account when this criterion is being assessed. Absence or reduced frequency of initiating sexual activ- ity and of receptivity to a partner’s sexual invitations (Criterion A3) is a behaviorally focused criterion. A couple’s beliefs and preferences for sexual initiation patterns are highly relevant to the assessment of this criterion. There may be absent or reduced sexual excitement or pleasure terion A4). Lack of pleasure is a common presenting clinical complaint in women with low de- sire. Among women who report low sexual desire, there are fewer sexual or erotic cues that elicit sexual interest or arousal (i.e., there is a lack of ”responsive desire”). Assessment of the adequacy of sexual stimuli will assist in determining if there is a difficulty with responsive sex- ual desire (Criterion A5). Frequency or intensity of genital or nongenital sensations during sex- ual activity may be reduced or absent (Criterion A6). This may include reduced vaginal lubrication/vasocongestion, but because physiological measures of genital sexual response do not differentiate women who report sexual arousal concerns from those who do not, the self- report of reduced or absent genital or nongenital sensations is sufficient. For a diagnosis of female sexual interest/arousal disorder to be made, clinically signif- icant distress must accompany the symptoms in Criterion A. Distress may be experienced as a result of the lack of sexual interest/arousal or as a result of significant interference in a woman's life and well-being. If a lifelong lack of sexual desire is better explained by one’s self—identification as ”asexual,” then a diagnosis of female sexual interest/arousal disor- der would not be made. Female sexual interest/ arousal disorder is frequently associated with problems in experi- encing orgasm, pain experienced during sexual activity, infrequent sexual activity, and couple-level discrepancies in desire. Relationship difficulties and mood disorders are also frequently associated features of female sexual interest/ arousal disorder. Unrealistic ex- pectations and norms regarding the ”appropriate" level of sexual interest or arousal, along with poor sexual techniques and lack of information about sexuality, may also be evident in women diagnosed with female sexual interest/arousal disorder. The latter, as well as normative beliefs about gender roles, are important factors to consider. In addition to the subtypes ”lifelong/acquired” and "generalized/situational,” the follow- ing five factors must be considered during assessment and diagnosis of female sexual interest/ arousal disorder given that they may be relevant to etiology and / or treatment: 1) partner fac- tors (e.g., partner’s sexual problems, partner’s health status); 2) relationship factors (e.g., poor communication, discrepancies in desire for sexual activity); 3) individual vulnerability factors (e.g., poor body image, history of sexual or emotional abuse), psychiatric comorbidity (e.g., de- pression, anxiety), or stressors (e.g., job loss, bereavement); 4) cultural/ religious factors (e.g., inhibitions related to prohibitions against sexual activity; attitudes toward sexuality); and 5) medical factors relevant to prognosis, course, or treatment. Note that each of these factors may contribute (fifferently to the presenting symptoms of different women with this disorder. The prevalence of female sexual interest/arousal disorder, as defined in this manual, is unknown. The prevalence of low sexual desire and of problems with sexual arousal (with and without associated distress), as defined by DSM-IV or ICD-lO, may vary markedly in relation to age, cultural setting, duration of symptoms, and presence of distress. Regard- ing duration of symptoms, there are striking differences in prevalence estimates between short-term and persistent problems related to lack of sexual interest. When distress about sexual functioning is required, prevalence estimates are markedly lower. Some older women report less distress about low sexual desire than younger women, although sexual desire may decrease with age. By definition, lifelong female sexual interest/arousal disorder suggests that the lack of sexual interest or arousal has been present for the woman’s entire sexual life. For Criteria A3, A4, and A6, which assess functioning during sexual activity, a subtype of lifelong would mean presence of symptoms since the individual’s first sexual experiences. The ac- quired subtype would be assigned if the difficulties with sexual interest or arousal de- veloped after a period of nonproblematic sexual functioning. Adaptive and normative changes in sexual functioning may result from partner-related, interpersonal, or personal events and may be transient in nature. However, persistence of symptoms for approxi- mately 6 months or more would constitute a sexual dysfunction. There are normative changes in sexual interest and arousal across the life span. Fur- thermore, women in relationships of longer duration are more likely to report engaging in sex despite no obvious feelings of sexual desire at the outset of a sexual encounter com- pared with women in shorter-duration relationships. Vaginal dryness in older women is related to age and menopausal status. Temperamental. Temperamental factors include negative cognitions and attitudes about sexuality and past history of mental disorders. Differences in propensity for sexual excitation and sexual inhibition may also predict the likelihood of developing sexual problems. Environmental. Environmental factors include relationship difficulties, partner sexual functioning, and developmental history, such as early relationships with caregivers and childhood stressors. Genetic and physiological. Some medical conditions (e.g., diabetes mellitus, thyroid dysfunction) can be risk factors for female sexual interest/ arousal disorder. There appears to be a strong influence of genetic factors on vulnerability to sexual problems in women. ences between women with and without perceived lack of genital arousal. There is marked variability in prevalence rates of low desire across cultures. Lower rates of sexual desire may be more common among East Asian women compared with Euro- Canadian women. Although the lower levels of sexual desire and arousal found in men and women from East Asian countries compared with Euro-American groups may reflect less interest in sex in those cultures, the possibility remains that such group differences are an artifact of the measures used to quantify desire. A judgment about whether low sexual sexual interest/arousal disorder must take into account the fact that different cultures may pathologize some behaviors and not others. By definition, the diagnosis of female sexual interest/arousal disorder is only given to women. Distressing difficulties with sexual desire in men would be considered under male hypoactive sexual desire disorder. Difficulties in sexual interest/arousal are often associated with decreased relationship sat- isfaction. Nonsexual mental disorders. Nonsexual mental disorders, such as major depressive disorder, in which there is “markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day,” may explain the lack of sexual interest/ arousal. If the lack of interest or arousal is completely attributable to another mental dis- order, then a diagnosis of female sexual interest/arousal disorder would not be made. Substance/medication use. Substance or medication use may explain the lack of inter- est/arousal. Another medical condition. If the sexual symptoms are considered to be almost exclu- sively associated with the effects of another medical condition (e.g., diabetes mellitus, en- dothelial disease, thyroid dysfunction, central nervous system disease), then a diagnosis of female sexual interest/arousal disorder would not be made. Interpersonal factors. If interpersonal or significant contextual factors, such as severe relationship distress, intimate partner violence, or other significant stressors, explain the sexual interest/arousal symptoms, then a diagnosis of female sexual interest/arousal dis- order would not be made. Other sexual dysfunctions. The presence of another sexual dysfunction does not rule out a diagnosis of female sexual interest/arousal disorder. It is common for women to ex- perience more than one sexual dysfunction. For example, the presence of chronic genital pain may lead to a lack of desire for the (painful) sexual activity. Lack of interest and arousal during sexual activity may impair orgasmic ability. For some women, all aspects of the sexual response may be unsatisfying and distressing. Inadequate or absent sexual stimuli. When differentialdiagnoses are being considered, it is important to assess the adequacy of sexual stimuli within the woman’s sexual experi- ence. In cases where inadequate or absent sexual stimuli are contributing to the clinical pic- ture, there may be evidence for clinical care, but a sexual dysfunction diagnosis would not be made. Similarly, transient and adaptive alterations in sexual functioning that are second- ary to a significant life or personal event must be considered in the differential diagnosis. extremely common. Sexual distress and dissatisfaction with sex life are also highly cor— related in women with low sexual desire. Distressing low desire is associated with depres- sion, thyroid problems, anxiety, urinary incontinence, and other medical factors. Arthritis and inflammatory or irritable bowel disease are also associated with sexual arousal prob- lems. Low desire appears to be comorbid with depression, sexual and physical abuse in adulthood, global mental functioning, and use of alcohol. Diagnostic Criteria 302.76 (F52.6)A. Persistent or recurrent difficulties with one (or more) of the following: 1. Vaginal penetration during intercourse. 2. Marked vulvovaginal or pelvic pain during vaginal intercourse or penetration attempts. 3. Marked fear or anxiety about vulvovaginal or pelvic pain in anticipation of, during, or as a result of vaginal penetration. 4. Marked tensing or tightening of the pelvic floor muscles during attempted vaginal penetration. B. The symptoms in Criterion A have persisted for a minimum duration of approximately 6 months. C. The symptoms in Criterion A cause clinically significant distress in the individual. D. The sexual dysfunction is not better explained by a nonsexual mental disorder or as a consequence of a severe relationship distress (e.g., partner violence) or other signifi- cant stressors and is not attributable to the effects of a substance/medication or an- other medical condition. Specify whether:Lifelong: The disturbance has been present since the individual became sexually active. Acquired: The disturbance began after a period of relatively normal sexual function. Specify current severity:Mild: Evidence of mild distress over the symptoms in Criterion A. Moderate: Evidence of moderate distress over the symptoms in Criterion A. Severe: Evidence of severe or extreme distress over the symptoms in Criterion A. Genito-pelvic pain/ penetration disorder refers to four commonly comorbid symptom di- mensions: 1) difficulty having intercourse, 2) genito-pelvic pain, 3) fear of pain or vaginal penetration, and 4) tension of the pelvic floor muscles (Criterion A). Because major diffi- culty in any one of these symptom dimensions is often sufficient to cause clinically sig- nificant distress, a diagnosis can be made on the basis of marked difficulty in only one symptom dimension. However, all four symptom dimensions should be assessed even if a diagnosis can be made on the basis of only one symptom dimension. ability to experience vaginal penetration in any situation (e.g., intercourse, gynecological ex- aminations, tampon insertion) to the ability to easily experience penetration in one situation and but not in another. Although the most common clinical situation is when a woman is un- able to experience intercourse or penetration with a partner, difficulties in undergoing re- quired gynecological examinations may also be present. Marked vulvovaginal or pelvic pain during vaginal intercourse or penetration attempts (Criterion A2) refers to pain occurring in differ- ent locations in the genito-pelvic area. Location of pain as well as intensity should be assessed. Typically, pain can be characterized as superficial (vulvovaginal or occurring during penetra- tion) or deep (pelvic; i.e., not felt until deeper penetration). The intensity of the pain is often not linearly related to distress or interference with sexual intercourse or other sexual activities. Some genito-pelvic pain only occurs when provoked (i.e., by intercourse or mechanical stim- ulation); other genito-pelvic pain may be spontaneous as well as provoked. Genito-pelvic pain can also be usefully characterized qualitatively (e.g., “burning," ”cutting,” ”shooting,” ”throb- bing”). The pain may persist for a period after intercourse is completed and may also occur during urination. Typically, the pain experienced during sexual intercourse can be reproduced during a gynecological examination. Markedfear or anxiety about vulvovaginal or pelvic pain either in anticipation of, or during, or us a result of vaginal penetration (Criterion A3) is commonly reported by women who have regularly experienced pain during sexual intercourse. This "normal” reaction may lead to avoidance of sexual/intimate situations. In other cases, this marked fear does not appear to be closely related to the experience of pain but nonetheless leads to avoidance of inter- course and vaginal penetration situations. Some have described this as similar to a phobic reaction except that the phobic object may be vaginal penetration or the fear of pain. Marked tensing or tightening of the pelvic floor muscles during attempted vaginal penetration (Criterion A4) can vary from reflexive-like spasm of the pelvic floor in response to at- tempted vaginal entry to ”normal/voluntary" muscle guarding in response to the antici- pated or the repeated experience of pain or to fear or anxiety. In the case of ”normal/ guarding” reactions, penetration may be possible under circumstances of relaxation. The characterization and assessment of pelvic floor dysfunction is often best undertaken by a specialist gynecologist or by a pelvic floor physical therapist. Genito-pelvic pain/ penetration disorder is frequently associated with other sexual dysfunc- tions, particularly reduced sexual desire and interest (female sexual interest/arousal disor- der). Sometimes desire and interest are preserved in sexual situations that are not painful or do not require penetration. Even when individuals with genito—pelvic pain/penetration dis- order report sexual interest/motivation, there is often behavioral avoidance of sexual situ- ations and opportunities. Avoidance of gynecological examinations despite medical recommendations is also frequent. The pattern of avoidance is similar to that seen in phobic disorders. It is common for women who have not succeeded in having sexual intercourse to come for treatment only when they wish to conceive. Many women with genito-pelvic pain/ ten report that the symptoms significantly diminish their feelings of femininity. In addition to the subtype “lifelong/acquired,” five factors should be considered dur- ing assessment and diagnosis of genito-pelvic pain/penetration disorder because they may be relevant to etiology and/ or treatment: 1) partner factors (e.g., partner’s sexual problems, partner’s health status); 2) relationship factors (e.g., poor communication, dis- crepancies in desire for sexual activity); 3) individual vulnerability factors (e.g., poor body image, history of sexual or emotional abuse), psychiatric comorbidity (e.g., depression, anxiety), or stressors (e.g., job loss, bereavement); 4) cultural/religious factors (e.g., inhi- bitions related to prohibitions against sexual activity; attitudes toward sexuality); and 5) medical factors relevant to prognosis, course, or treatment. Each of these factors may contribute differently to the presenting symptoms of different women with this disorder. There are no valid physiological measures of any of the component symptom dimen- sions of genito-pelvic pain/penetration disorder. Validated psychometric inventories may be used to formally assess the pain and anxiety components related to genito-pelvic pain/ penetration disorder. The prevalence of genito-pelvic pain/ penetration disorder is unknown. However, approx- imately 15% of women in North America report recurrent pain during intercourse. Diffi- culties having intercourse appear to be a frequent referral to sexual dysfunction clinics and to specialist clinicians. The development and course of genito-pelvic pain/ penetration disorder is unclear. Because women generally do not seek treatment until they experience problems in sexual functioning, it can, in general, be difficult to characterize genito—pelvic pain/penetration disorder as life- long (primary) or acquired (secondary). Although women typically come to clinical atten- tion after the initiation of sexual activity, there are often earlier clinical signs. For example, difficulty with or the avoidance of use of tampons is an important predictor of later problems. Difficulties with vaginal penetration (inability or fear or pain) may not be obvious until sex- ual intercourse is attempted. Even once intercourse is attempted, the frequency of attempts may not be significant or regular. In cases where it is difficult to establish whether symptom- atology is lifelong or acquired, it is useful to determine the presence of any consistent period of successful pain-, fear-, and tension—free intercourse. If the experience of such a period can be established, then genito-pelvic pain/penetration disorder can be characterized as ac- quired. Once symptomatology is well established for a period of approximately 6 months, the probability of spontaneous and significant symptomatic remission appears to diminish. Complaints related to genito-pelvic pain peak during early adulthood and in the peri- and postmenopausal period. Women with complaints about difficulty having intercourse appear to be primarily premenopausal. There may also be an increase in genito-pelvic pain—related symptoms in the postpartum period. Environmental. Sexual and / or physical abuse have often been cited as predictors of the DSM-IV-defined sexual pain disorders dyspareunia and vaginismus. This is a matter of con- troversy in the current literature. Genetic and physiological. Women experiencing superficial pain during sexual inter— course often report the onset of the pain after a history of vaginal infections. Even after the in- fections have resolved and there are no known residual physical findings, the pain persists. Pain during tampon insertion or the inability to insert tampons before any sexual contact has been attempted is an important risk factor for genit05mD :5 ENEwoom: m5 xuomfimu 85.5. H x .082 5:30:55; x x x E35 35 35 35 35 35 35 35 35 53.50550 x x 3 80355.5. x x x 5 5 3\ 5 3\ 5 3\ 5 3\ 5 3\ 5 5 23:85:65.6 .50 .monoErE x x x 3: 5s: 35 3 35 852.50 x x 5 5 5 5 .5 8:525:85 50550 m:omo:5u==m5.5 x x x 5 3\ 5 5 5 553:3 E5585 cozao 209.85“. @6985 E25560 wee: 22:86 22:85 969686 0585208555 20.23:. b.5936 -555 -_xo5:_ ow: o>Ecmoo 0:295... 6006 50290.. Ucm 5550555555 02.». 5m_oq_m 25.050566 00:05.8 oocflw oocflmoam -o._:oz _msxow 02$:an0 89500 .555 .556 038030 00.20 00:52:50 5555 5.285083 032585 w u4n35 units) of gamma-glutamyltransferase (GGT). This may be the only laboratory finding. At least 70% of individuals with a high GGT level are persistent heavy drinkers (i.e., consuming eight or more drinks daily on a regular basis). A second test with comparable or even higher levels of sensitivity and specificity is carbo- hydrate—deficient transferrin (CDT), with levels of 20 units or higher useful in identifying in- dividuals who regularly consume eight or more drinks daily. Since both GGT and CDT levels return toward normal within days to weeks of stopping drinking, both state markers may be useful in monitoring abstinence, especially when the clinician observes increases, rather than decreases, in these values over time—a finding indicating that the person is likely to have returned to heavy drinking. The combination of tests for CDT and GGT may have even higher levels of sensitivity and specificity than either test used alone. Additional useful tests include the mean corpuscular volume (MCV), which may be elevated to high- normal values in individuals who drink heavily—a change that is due to the direct toxic ef— fects of alcohol on erythropoiesis. Although the MCV can be used to help identify those who drink heavily, it is a poor method of monitoring abstinence because of the long half-life of red blood cells. Liver function tests (e.g., alanine aminotransferase [ALT] and alkaline phos- phatase) can reveal liver injury that is a consequence of heavy drinking. Other potential markers of heavy drinking that are more nonspecific for alcohol but can help the clinician think of the possible effects of alcohol include elevations in blood levels or lipids (e.g., tri- glycerides and high-density lipoprotein cholesterol) and high-normal levels of uric acid. Additional diagnostic markers relate to signs and symptoms that reflect the consequences often associated with persistent heavy drinking. For example, dyspepsia, nausea, and bloat— ing can accompany gastritis, and hepatomegaly, esophageal varices, and hemorrhoids may reflect alcohol-induced changes in the liver. Other physical signs of heavy drinking include tremor, unsteady gait, insomnia, and erectile dysfunction. Males with chronic alcohol use dis- order may exhibit decreased testicular size and feminizing effects associated with reduced testosterone levels. Repeated heavy drinking in females is associated with menstrual irregu- larities and, during pregnancy, spontaneous abortion and fetal alcohol syndrome. Individu- als with preexisting histories of epilepsy or severe head trauma are more likely to develop alcohol-related seizures. Alcohol withdrawal may be associated with nausea, vomiting, gas- tritis, hematemesis, dry mouth, puffy blotchy complexion, and mild peripheral edema. Functional Consequences of Alcohol Use DisorderThe diagnostic features of alcohol use disorder highlight major areas of life functioning likely to be impaired. These include driving and operating machinery, school and work, interpersonal relationships and communication, and health. Alcohol-related disorders contribute to absenteeism from work, job-related accidents, and low employee productiv- ity. Rates are elevated in homeless individuals, perhaps reflecting a downward spiral in social and occupational functioning, although most individuals with alcohol use disorder continue to live with their families and function within their jobs. Alcohol use disorder is associated with a significant increase in the risk of accidents, vi— olence, and suicide. It is estimated that one in five intensive care unit admissions in some urban hospitals is related to alcohol and that 40% of individuals in the United States ex- perience an alcohol-related adverse event at some time in their lives, with alcohol account- ing for up to 55% of fatal driving events. Severe alcohol use disorder, especially in individuals with antisocial personality disorder, is associated with the commission of criminal acts, including homicide. Severe problematic alcohol use also contributes to dis- inhibition and feelings of sadness and irritability, which contribute to suicide attempts and completed suicides. alcohol use disorder has been overlooked can add to the risks and costs of hospitalization and to time spent in the hospital. Nonpathological use of alcohol. The key element of alcohol use disorder is the use of heavy doses of alcohol with resulting repeated and significant distress or impaired func- tioning. While most drinkers sometimes consume enough alcohol to feel intoxicated, only a minority (less than 20%) ever develop alcohol use disorder. Therefore, drinking, even daily, in low doses and occasional intoxication do not by themselves make this diagnosis. Sedative, hypnotic, or anxiolytic use disorder. The signs and symptoms of alcohol use disorder are similar to those seen in sedative, hypnotic, or anxiolytic use disorder. The two must be distinguished, however, because the course may be different, especially in rela- tion to medical problems. Conduct disorder in childhood and adult antisocial personality disorder. Alcohol use disorder, along with other substance use disorders, is seen in the majority of individuals with antisocial personality and preexisting conduct disorder. Because these diagnoses are associated with an early onset of alcohol use disorder as well as a worse prognosis, it is im- portant to establish both conditions. Bipolar disorders, schizophrenia, and antisocial personality disorder are associated with a markedly increased rate of alcohol use disorder, and several anxiety and depressive disorders may relate to alcohol use disorder as well. At least a part of the reported association between depression and moderate to severe alcohol use disorder may be attributable to temporary, al- cohol-induced comorbid depressive symptoms resulting from the acute effects of intoxication or withdrawal. Severe, repeated alcohol intoxication may also suppress immune mechanisms and predispose individuals to infections and increase the risk for cancers. A. Recent ingestion of alcohol.B. Clinically significant problematic behavioral or psychological changes (e.g., inappropri- ate sexual or aggressive behavior, mood lability, impaired judgment) that developed during, or shortly after, alcohol ingestion. C. One (or more) of the following signs or symptoms developing during, or shortly after, alcohol use: Slurred speech.Unsteady gait.Impairment in attention or memory.Stupor or coma.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another substance. Coding note: The |CD-9-CM code is 303.00. The |CD-10-CM code depends on whether there is a comorbid alcohol use disorder. It a mild alcohol use disorder is comorbid, the |CD-10-CM code is F10.129, and if a moderate or severe alcohol use disorder is comorbid, the |CD-10-CM code is F10.229. If there is no comorbid alcohol use disorder, then the |CD-10-CM code is F10.929. The essential feature of alcohol intoxication is the presence of clinically significant problematic behavioral or psychological changes (e.g., inappropriate sexual or aggressive behavior, mood lability, impaired judgment, impaired social or occupational functioning) that develop during, or shortly after, alcohol ingestion (Criterion B). These changes are accompanied by evidence of impaired functioning and judgment and, if intoxication is intense, can result in a life-threaten— ing coma. The symptoms must not be attributable to another medical condition (e.g., diabetic ketoacidosis), are not a reflection of conditions such as delirium, and are not related to intoxi- cation with other depressant drugs (e.g., benzodiazepines) (Criterion D). The levels of incoor- dination can interfere with driving abilities and performance of usual activities to the point of causing accidents. Evidence of alcohol use can be obtained by smelling alcohol on the individ- ual’s breath, eliciting a history from the individual or another observer, and, when needed, having the individual provide breath, blood, or urine samples for toxicology analyses. Alcohol intoxication is sometimes associated with amnesia for the events that occurred during the course of the intoxication (”blackouts"). This phenomenon may be related to the presence of a high blood alcohol level and, perhaps, to the rapidity with which this level is reached. During even mild alcohol intoxication, different symptoms are likely to be observed at different time points. Evidence of mild intoxication with alcohol can be seen in most individuals after approximately two drinks (each standard drink is approximately 10—12 grams of ethanol and raises the blood alcohol concentration approximately 20 mg/ dL). Early in the drinking period, when blood alcohol levels are rising, symptoms often include talkativeness, a sensation of well-being, and a bright, expansive mood. Later, es- pecially when blood alcohol levels are falling, the individual is likely to become progres- sively more depressed, withdrawn, and cognitively impaired. At very high blood alcohol levels (e.g., 200—300 mg/dL), an individual who has not developed tolerance for alcohol is likely to fall asleep and enter a first stage of anesthesia. Higher blood alcohol levels (e.g., in excess of 300—400 mg/dL) can cause inhibition of respiration and pulse and even death in nontolerant individuals. The duration of intoxication depends on how much alcohol was consumed over what period of time. In general, the body is able to metabolize approxi- mately one drink per hour, so that the blood alcohol level generally decreases at a rate of 15—20 mg/dL per hour. Signs and symptoms of intoxication are likely to be more intense when the blood alcohol level is rising than when it is falling. Alcohol intoxication is an important contributor to suicidal behavior. There appears to be an increased rate of suicidal behavior, as well as of completed suicide, among persons intoxicated by alcohol. The large majority of alcohol consumers are likely to have been intoxicated to some degree at some point in their lives. For example, in 2010, 44% of 12th—grade students admitted to having been ”drunk in the past year,” with more than 70% of college students reporting the same. Intoxication usually occurs as an episode usually developing over minutes to hours and typi— cally lasting several hours. In the United States, the average age at first intoxication is approx— imately 15 years, with the highest prevalence at approximately 18—25 years. Frequency and intensity usually decrease with further advancing age. The earlier the onset of regular intoxi— cation, the greater the likelihood the individual will go on to develop alcohol use disorder. Temperamental. Episodes of alcohol intoxication increase with personality characteris- tics of sensation seeking and impulsivity. Environmental. Episodes of alcohol intoxication increase with a heavy drinking envi- ronment. The major issues parallel the cultural differences regarding the use of alcohol overall. Thus, college fraternities and sororities may encourage alcohol intoxication. This condi- tion is also frequent on certain dates of cultural significance (e.g., New Year’s Eve) and, for some subgroups, during specific events (e.g., wakes following funerals). Other subgroups encourage drinking at religious celebrations (e.g., Jewish and Catholic holidays), while still others strongly discourage all drinking or intoxication (e.g., some religious groups, such as Mormons, fundamentalist Christians, and Muslims). Historically, in many Western societies, acceptance of drinking and drunkenness is more tolerated for males, but such gender differences may be much less prominent in recent years, especially during adolescence and young adulthood. Intoxication is usually established by observing an individual’s behavior and smelling alcohol on the breath. The degree of intoxication increases with an individual’s blood or breath alcohol level and with the ingestion of other substances, especially those with sedating effects. Functional Consequences of Alcohol IntoxicationAlcohol intoxication contributes to the more than 30,000 alcohol-related drinking deaths in the United States each year. In addition, intoxication with this drug contributes to huge costs associated with drunk driving, lost time from school or work, as well as interpersonal arguments and physical fights. Other medical conditions. Several medical (e.g., diabetic acidosis) and neurological condi— tions (e.g., cerebellar ataxia, multiple sclerosis) can temporarily resemble alcohol intoxication. Sedative, hypnotic, or anxiolytic intoxication. Intoxication with sedative, hypnotic, or anxiolytic drugs or with other sedating substances (e.g., antihistamines, anticholinergic drugs) can be mistaken for alcohol intoxication. The differential requires observing alco- hol on the breath, measuring blood or breath alcohol levels, ordering a medical workup, and gathering a good history. The signs and symptoms of sedative-hypnotic intoxication are very similar to those observed with alcohol and include similar problematic behavioral or psychological changes. These changes are accompanied by evidence of impaired func- tioning and judgment—Which, if intense, can result in a life-threatening coma—and levels of incoordination that can interfere with driving abilities and with performing usual activities. However, there is no smell as there is with alcohol, but there is likely to be evi- dence of misuse of the depressant drug in the blood or urine toxicology analyses. Alcohol intoxication may occur comorbidly with other substance intoxication, especially in individuals with conduct disorder or antisocial personality disorder. A. Cessation of (or reduction in) alcohol use that has been heavy and prolonged. B. Two (or more) of the following, developing within several hours to a few days after the cessation of (or reduction in) alcohol use described in Criterion A: Autonomic hyperactivity (e.g.. sweating or pulse rate greater than 100 bpm). Increased hand tremor.Nausea or vomiting.Transient visual, tactile. or auditory hallucinations or illusions.Psychomotor agitation.Generalized tonic-clonic seizures.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. Specify it:With perceptual disturbances: This specifier applies in the rare instance when hal- lucinations (usually visual or tactile) occur with intact reality testing, or auditory, visual, or tactile illusions occur in the absence of a delirium. Coding note: The |CD-9-CM code is 291.81. The |CD-10-CM code for alcohol withdrawal without perceptual disturbances is F10.239, and the |CD-10-CM code for alcohol withdrawal with perceptual disturbances is F10.232. Note that the |CD-10-CM code indicates the comor- bid presence of a moderate or severe alcohol use disorder, reflecting the fact that alcohol with- drawal can only occur in the presence of a moderate or severe alcohol use disorder. It is not permissible to code a comorbid mild alcohol use disorder with alcohol withdrawal. When hallucinations occur in the absence of delirium (i.e., in a clear sensorium), a diagno- sis of substance/medication-induced psychotic disorder should be considered. The essential feature of alcohol withdrawal is the presence of a characteristic withdrawal syndrome that develops within several hours to a few days after the cessation of (or re- duction in) heavy and prolonged alcohol use (Criteria A and B). The withdrawal syn- drome includes two or more of the symptoms reflecting autonomic hyperactivity and anxiety listed in Criterion B, along with gastrointestinal symptoms. Withdrawal symptoms cause clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning (Criterion C). The symptoms must not be attributable to another medical condition and are not better explained by another men- tal disorder (e.g., generalized anxiety disorder), including intoxication or withdrawal from another substance (e.g., sedative, hypnotic, or anxiolytic withdrawal) (Criterion D). Symptoms can be relieved by administering alcohol or benzodiazepines (e.g., diazepam). The withdrawal symptoms typically begin when blood concentrations of alcohol decline sharply (i.e., within 4—12 hours) after alcohol use has been stopped or reduced. Reflecting the relatively fast metabolism of alcohol, symptoms of alcohol withdrawal usually peak in inten- sity during the second day of abstinence and are likely to improve markedly by the fourth or fifth day. Following acute withdrawal, however, symptoms of anxiety, insomnia, and auto- nomic dysfunction may persist for up to 3—6 months at lower levels of intensity. Fewer than 10% of individuals who develop alcohol withdrawal will ever develop dra- matic symptoms (e.g., severe autonomic hyperactivity, tremors, alcohol withdrawal delir- ium). Tonic-clonic seizures occur in fewer than 3% of individuals. Although confusion and changes in consciousness are not core criteria for alcohol with- drawal, alcohol withdrawal delirium (see ”Delirium” in the chapter "Neurocognitive Dis- orders”) may occur in the context of withdrawal. As is true for any agitated, confused state, regardless of the cause, in addition to a disturbance of consciousness and cognition, with- drawal delirium can include visual, tactile, or (rarely) auditory hallucinations (delirium tre- mens). When alcohol withdrawal delirium develops, it is likely that a clinically relevant medical condition may be present (e.g., liver failure, pneumonia, gastrointestinal bleeding, sequelae of head trauma, hypoglycemia, an electrolyte imbalance, postoperative status). It is estimated that approximately 50% of middle-class, highly functional individuals with alcohol use disorder have ever experienced a full alcohol withdrawal syndrome. Among individuals with alcohol use disorder who are hospitalized or homeless, the rate of al- cohol withdrawal may be greater than 80%. Less than 10% of individuals in withdrawal ever demonstrate alcohol withdrawal delirium or withdrawal seizures. Acute alcohol withdrawal occurs as an episode usually lasting 4—5 days and only after extended periods of heavy drinking. Withdrawal is relatively rare in individuals younger than 30 years, and the risk and severity increase with increasing age. Environmental. The probability of developing alcohol withdrawal increases with the quantity and frequency of alcohol consumption. Most individuals with this condition are drinking daily, consuming large amounts (approximately more than eight drinks per day) for multiple days. However, there are large inter-individual differences, with enhanced risks for individuals with concurrent medical conditions, those with family histories of al- cohol withdrawal (i.e., a genetic component), those with prior withdrawals, and individ- uals who consume sedative, hypnotic, or anxiolytic drugs. Autonomic hyperactivity in the context of moderately high but falling blood alcohol levels and a history of prolonged heavy drinking indicate a likelihood of alcohol withdrawal. Functional Consequences of Alcohol WithdrawalSymptoms of withdrawal may serve to perpetuate drinking behaviors and contribute to relapse, resulting in persistently impaired social and occupational functioning. Symptoms work productivity. Overall, the presence of withdrawal is associated with greater func- tional impairment and poor prognosis. Other medical conditions. The symptoms of alcohol withdrawal can also be mimicked by some medical conditions (e.g., hypoglycemia and diabetic ketoacidosis). Essential tremor, a disorder that frequently runs in families, may erroneously suggest the tremu- lousness associated with alcohol withdrawal. Sedative, hypnotic, or anxiolytic withdrawal. Sedative, hypnotic, or anxiolytic with- drawal produces a syndrome very similar to that of alcohol withdrawal. Withdrawal is more likely to occur with heavier alcohol intake, and that might be most of— ten observed in individuals with conduct disorder and antisocial personality disorder. Withdrawal states are also more severe in older individuals, individuals who are also de- pendent on other depressant drugs (sedative-hypnotics), and individuals who have had more alcohol withdrawal experiences in the past. The following alcohol-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication-induced mental disorders in these chapters): alcohol—induced psychotic disorder (”Schizophrenia Spec- induced major or mild neurocognitive disorder (”Neurocognitive Disorders”). For alcohol intoxication delirium and alcohol withdrawal delirium, see the criteria and discussion of de- lirium in the chapter ”Neurocognitive Disorders.” These alcohol—induced disorders are diag- nosed instead of alcohol intoxication or alcohol withdrawal only when the symptoms are sufficiently severe to warrant independent clinical attention. The symptom profiles for an alcohol-induced condition resemble independent mental disor- ders as described elsewhere in DSM-5. However, the alcohol—induced disorder is temporary and observed after severe intoxication with and / or withdrawal from alcohol. While the symp- toms can be identical to those of independent mental disorders (e.g., psychoses, major depres- sive disorder), and while they can have the same severe consequences (e.g., suicide attempts), alcohol-induced conditions are likely to improve without formal treatment in a matter of days to weeks after cessation of severe intoxication and / or withdrawal. Each alcohol—induced mental disorder is listed in the relevant diagnostic section and there- fore only a brief description is offered here. Alcohol-induced disorders must have developed in the context of severe intoxication and / or withdrawal from the substance capable of produc- ing the mental disorder. In addition, there must be evidence that the disorder being observed is not likely to be better explained by another non-alcohol-induced mental disorder. The latter is likely to occur if the mental disorder was present before the severe intoxication or with- drawal, or continued more than 1 month after the cessation of severe intoxication and / or with- drawal. When symptoms are observed only during a delirium, they should be considered part of the delirium and not diagnosed separately, as many symptoms (including disturbances in mood, anxiety, and reality testing) are commonly seen during agitated, confused states. The a1- cohol-induced disorder must be clinically relevant, causing significant levels of distress or sig- nificant functional impairment. Finally, there are indications that the intake of substances of abuse in the context of a preexisting mental disorder are likely to result in an intensification of the preexisting independent syndrome. The features associated with each relevant major mental disorder (e.g., psychotic epi- sodes, major depressive disorder) are similar whether observed with an independent or an alcohol-induced condition. However, individuals with alcohol-induced disorders are likely to also demonstrate the associated features seen with an alcohol use disorder, as listed in the subsections of this chapter. Rates of alcohol-induced disorders vary somewhat by diagnostic category. For exam- ple, the lifetime risk for major depressive episodes in individuals with alcohol use disorder is approximately 40%, but only about one-third to one-half of these represent independent major depressive syndromes observed outside the context of intoxication. Similar rates of alcohol-induced sleep and anxiety conditions are likely, but alcohol-induced psychotic ep— isodes are fairly rare. Once present, the symptoms of an alcohol-induced condition are likely to remain clinically relevant as long as the individual continues to experience severe intoxication and / or with- drawal. While the symptoms are identical to those of independent mental disorders (e.g., psychoses, major depressive disorder), and while they can have the same severe conse- quences (e.g., suicide attempts), all alcohol-induced syndromes other than alcohol- induced neurocognitive disorder, amnestic confabulatory type (alcohol-induced persist- ing amnestic disorder), regardless of the severity of the symptoms, are likely to improve relatively quickly and unlikely to remain clinically relevant for more than 1 month after cessation of severe intoxication and/ or withdrawal. The alcohol-induced disorders are an important part of the differential diagnoses for the independent mental conditions. Independent schizophrenia, major depressive disor- der, bipolar disorder, and anxiety disorders, such as panic disorder, are likely to be asso- ciated with much longer-lasting periods of symptoms and often require longer-term medications to optimize the probability of improvement or recovery. The alcohol-induced conditions, on the other hand, are likely to be much shorter in duration and disappear within several days to 1 month after cessation of severe intoxication and / or withdrawal, even without psychotropic medications. The importance of recognizing an alcohol-induced disorder is similar to the relevance of identifying the possible role of some endocrine conditions and medication reactions be- fore diagnosing an independent mental disorder. In light of the high prevalence of alcohol use disorders worldwide, it is important that these alcohol-induced diagnoses be consid- ered before independent mental disorders are diagnosed. 291.9 (F10.99)This category applies to presentations in which symptoms characteristic of an alcohol- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific alcohoI-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. Diagnostic Criteria 305.90 (F15.929)A. Flecent consumption of caffeine (typically a high dose well in excess of 250 mg). B. Five (or more) of the following signs or symptoms developing during, or shortly after, caffeine use: 1. Restlessness. 2. Nervousness.3. Excitement.4. Insomnia.5. Flushed face.6. Diuresis.7. Gastrointestinaldisturbance.8. Muscle twitching.9. Rambling flow of thought and speech.10. Tachycardia or cardiac arrhythmia.11. Periods of inexhaustibility.12. Psychomotor agitation.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not bet- ter explained by another mental disorder, including intoxication with another substance. Caffeine can be consumed from a number of different sources, including coffee, tea, caf- feinated soda, "energy” drinks, over-the-counter analgesics and cold remedies, energy aids (e.g., drinks), weight-loss aids, and chocolate. Caffeine is also increasingly being used as an additive to vitamins and to food products. More than 85% of children and adults con- sume caffeine regularly. Some caffeine users display symptoms consistent with problem- atic use, including tolerance and withdrawal (see ”Caffeine Withdrawal” later in this chapter); the data are not available at this time to determine the clinical significance of a caffeine use disorder and its prevalence. In contrast, there is evidence that caffeine with- drawal and caffeine intoxication are clinically significant and sufficiently prevalent. The essential feature of caffeine intoxication is recent consumption of caffeine and five and B). Symptoms include restlessness, nervousness, excitement, insomnia, flushed face, diuresis, and gastrointestinal complaints, which can occur with low doses (e.g., 200 mg) in vulnerable individuals such as children, the elderly, or individuals who have not been ex- posed to caffeine previously. Symptoms that generally appear at levels of more than 1 g / day include muscle twitching, rambling flow of thought and speech, tachycardia or car- diac arrhythmia, periods of inexhaustibility, and psychomotor agitation. Caffeine intoxi- cation may not occur despite high caffeine intake because of the development of tolerance. The signs or symptoms must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion C). The signs or symp- toms must not be attributable to another medical condition and are not better explained by another mental disorder (e.g., an anxiety disorder) or intoxication with another substance (Criterion D). Mild sensory disturbances (e.g., ringing in the ears and flashes of light) may occur with high doses of caffeine. Although large doses of caffeine can increase heart rate, smaller doses can slow heart rate. Whether excess caffeine intake can cause headaches is unclear. On physical examination, agitation, restlessness, sweating, tachycardia, flushed face, and increased bowel motility may be seen. Caffeine blood levels may provide important information for diagnosis, particularly when the individual is a poor historian, although these levels are not diagnostic by themselves in view of the individual variation in response to caffeine. The prevalence of caffeine intoxication in the general population is unclear. In the United States, approximately 7% of individuals in the population may experience five or more symp- toms along with functional impairment consistent with a diagnosis of caffeine intoxication. Consistent with a half-life of caffeine of approximately 4—6 hours, caffeine intoxication symptoms usually remit within the first day or so and do not have any known long-lasting consequences. However, individuals who consume very high doses of caffeine (i.e., 5—10 g) may require immediate medical attention, as such doses can be lethal. With advancing age, individuals are likely to demonstrate increasingly intense reac- tions to caffeine, with greater complaints of interference with sleep or feelings of hyper- arousal. Caffeine intoxication among young individuals after consumption of highly caffeinated products, including energy drinks, has been observed. Children and adoles- cents may be at increased risk for caffeine intoxication because of low body weight, lack of tolerance, and lack of knowledge about the pharmacological effects of caffeine. Environmental. Caffeine intoxication is often seen among individuals who use caffeine tial amount. Furthermore, oral contraceptives significantly decrease the elimination of caf— feine and consequently may increase the risk of intoxication. Genetic and physiological. Genetic factors may affect risk of caffeine intoxication. Functional Consequences of Caffeine IntoxicationImpairment from caffeine intoxication may have serious consequences, including dys- function at work or school, social indiscretions, or failure to fulfill role obligations. More- over, extremely high doses of caffeine can be fatal. In some cases, caffeine intoxication may precipitate a caffeine-induced disorder. Other mental disorders. Caffeine intoxication may be characterized by symptoms (e.g., panic attacks) that resemble primary mental disorders. To meet criteria for caffeine intoxica- tion, the symptoms must not be associated with another medical condition or another mental disorder, such as an anxiety disorder, that could better explain them. Manic episodes; panic disorder; generalized anxiety disorder; amphetamine intoxication; sedative, hypnotic, or anx- fects (e.g., akathisia) can cause a clinical picture that is similar to that of caffeine intoxication. Other caffeine—induced disorders. The temporal relationship of the symptoms to increased caffeine use or to abstinence from caffeine helps to establish the diagnosis. Caffeine intoxica- tion is differentiated from caffeine-induced anxiety disorder, with onset during intoxication (see ”Substance/Medication-Induced Anxiety Disorder” in the chapter ”Anxiety Disorders”), and caffeine—induced sleep disorder, with onset during intoxication (see ”Substance/Medica- tion—Induced Sleep Disorder” in the chapter ”Sleep-Wake Disorders”), by the fact that the symptoms in these latter disorders are in excess of those usually associated with caffeine in- toxication and are severe enough to warrant independent clinical attention. Typical dietary doses of caffeine have not been consistently associated with medical prob- lems. However, heavy use (e.g., >400 mg) can cause or exacerbate anxiety and somatic symptoms and gastrointestinal distress. With acute, extremely high doses of caffeine, grand mal seizures and respiratory failure may result in death. Excessive caffeine use is as- sociated with depressive disorders, bipolar disorders, eating disorders, psychotic disor- ders, sleep disorders, and substance-related disorders, whereas individuals with anxiety disorders are more likely to avoid caffeine. Diagnostic Criteria 292.0 (F15.93)A. Prolonged daily use of caffeine.B. Abrupt cessation of or reduction in caffeine use, followed within 24 hours by three (or more) of the following signs or symptoms: Marked fatigue or drowsiness.Dysphoric mood. depressed mood, or irritability.Difficulty concentrating.Flu— like symptoms (nausea vomiting, or muscle pain/stiffness).C. The signs or symptoms' In Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not associated with the physiological effects of another medical condition (e.g., migraine, viral illness) and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. The essential feature of caffeine withdrawal is the presence of a characteristic withdrawal syndrome that develops after the abrupt cessation of (or substantial reduction in) pro- longed daily caffeine ingestion (Criterion B). The caffeine withdrawal syndrome is indi- cated by three or more of the following (Criterion B): headache; marked fatigue or drowsiness; dysphoric mood, depressed mood, or irritability; difficulty concentrating; and flu-like symptoms (nausea, vomiting, or muscle pain/stiffness). The withdrawal syn- drome causes clinical significant distress or impairment in social, occupational, or other important areas of functioning (Criterion C). The symptoms must not be associated with the physiological effects of another medical condition and are not better explained by an- other mental disorder (Criterion D). Headache is the hallmark feature of caffeine withdrawal and may be diffuse, gradual in development, throbbing, severe, and sensitive to movement. However, other symptoms of caffeine withdrawal can occur in the absence of headache. Caffeine is the most widely used behaviorally active drug in the world and is present in many different types of bev- erages (e.g., coffee, tea, maté, soft drinks, energy drinks), foods, energy aids, medications, and dietary supplements. Because caffeine ingestion is often integrated into social customs and daily rituals (e.g., coffee break, tea time), some caffeine consumers may be unaware of their physical dependence on caffeine. Thus, caffeine withdrawal symptoms could be un- expected and misattributed to other causes (e.g., the flu, migraine). Furthermore, caffeine withdrawal symptoms may occur when individuals are required to abstain from foods and beverages prior to medical procedures or when a usual caffeine dose is missed be- cause of a change in routine (e.g., during travel, weekends). The probability and severity of caffeine withdrawal generally increase as a function of usual daily caffeine dose. However, there is large variability among individuals and within individuals across different episodes in the incidence, severity, and time course of withdrawal symptoms. Caffeine withdrawal symptoms may occur after abrupt cessation of relatively low chronic daily doses of caffeine (i.e., 100 mg). Caffeine abstinence has been shown to be associated with impaired behavioral and cogni- tive performance (e.g., sustained attention). Electroencephalographic studies have shown that caffeine withdrawal symptoms are significantly associated with increases in theta power and decreases in beta-2 power. Decreased motivation to work and decreased socia- bility have also been reported during caffeine withdrawal. Increased analgesic use during caffeine withdrawal has been documented. More than 85% of adults and children in the United States regularly consume caffeine, with adult caffeine consumers ingesting about 280 mg/day on average. The incidence and prevalence of the caffeine withdrawal syndrome in the general population are unclear. In the United States, headache may occur in approximately 50% of cases of caffeine absti- nence. In attempts to permanently stop caffeine use, more than 7 0% of individuals may ex- perience at least one caffeine withdrawal symptom (47% may experience headache), and 24% may experience headache plus one or more other symptoms as well as functional impairment due to withdrawal. Among individuals who abstain from caffeine for at least 24 hours but are not trying to permanently stop caffeine use, 11% may experience head- ache plus one or more other symptoms as well as functional impairment. Caffeine con- sumers can decrease the incidence of caffeine withdrawal by using caffeine daily or only infrequently (e.g., no more than 2 consecutive days). Gradual reduction in caffeine over a period of days or weeks may decrease the incidence and severity of caffeine withdrawal. Symptoms usually begin 12—24 hours after the last caffeine dose and peak after 1—2 days of abstinence. Caffeine withdrawal symptoms last for 2—9 days, with the possibility of withdrawal headaches occurring for up to 21 days. Symptoms usually remit rapidly (within 30—60 minutes) after re—ingestion of caffeine. Caffeine is unique in that it is a behaviorally active drug that is consumed by individ- uals of nearly all ages. Rates of caffeine consumption and overall level of caffeine con- sumption increase with age until the early to mid-305 and then level off. Although caffeine withdrawal among children and adolescents has been documented, relatively little is known about risk factors for caffeine withdrawal among this age group. The use of highly caffeinated energy drinks is increasing with in young individuals, which could increase the risk for caffeine withdrawal. Temperamental. Heavy caffeine use has been observed among individuals with mental disorders, including eating disorders; smokers; prisoners; and drug and alcohol abusers. Thus, these individuals could be at higher risk for caffeine withdrawal upon acute caffeine abstinence. Environmental. The unavailability of caffeine is an environmental risk factor for incipi- ent withdrawal symptoms. While caffeine is legal and usually widely available, there are conditions in which caffeine use may be restricted, such as during medical procedures, pregnancy, hospitalizations, religious Observances, wartime, travel, and research partici- pation. These external environmental circumstances may precipitate a withdrawal syn- drome in vulnerable individuals. Genetic and physiological factors. Genetic factors appear to increase vulnerability to caffeine withdrawal, but no specific genes have been identified. Course modifiers. Caffeine withdrawal symptoms usually remit within 30—60 minutes of reexposure to caffeine. Doses of caffeine significantly less than one’s usual daily dose may be sufficient to prevent or attenuate caffeine withdrawal symptoms (e.g., consump- tion of 25 mg by an individual who typically consumes 300 mg). feine withdrawal.Caffeine withdrawal symptoms can vary from mild to extreme, at times causing functional impairment in normal daily activities. Rates of functional impairment range from 10% to 55% (median 13%), with rates as high as 73% found among individuals who also show other problematic features of caffeine use. Examples of functional impairment include be- ing unable to work, exercise, or care for children; staying in bed all day; missing religious services; ending a vacation early; and cancelling a social gathering. Caffeine withdrawal headaches may be described by individuals as ”the worst headaches” ever experienced. Decrements in cognitive and motor performance have also been observed. Other medical disorders and medical side effects. Several disorders should be consid- ered in the differential diagnosis of caffeine withdrawal. Caffeine withdrawal can mimic migraine and other headache disorders, viral illnesses, sinus conditions, tension, other drug withdrawal states (e.g., from amphetamines, cocaine), and medication side effects. The final determination of caffeine withdrawal should rest on a determination of the pat- tern and amount consumed, the time interval between caffeine abstinence and onset of symptoms, and the particular clinical features presented by the individual. A challenge dose of caffeine followed by symptom remission may be used to confirm the diagnosis. Caffeine withdrawal may be associated with major depressive disorder, generalized anx- iety disorder, panic disorder, antisocial personality disorder in adults, moderate to severe alcohol use disorder, and cannabis and cocaine use. The following caffeine-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication- induced mental disorders in these chapters): caffeine-induced anxiety disorder (”Anxiety Disorders”) and caffeine-induced sleep disorder (”Sleep-Wake Disorders"). These caf- feine-induced disorders are diagnosed instead of caffeine intoxication or caffeine with- drawal only when the symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F15.99)This category applies to presentations in which symptoms characteristic of a caffeine- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific caffeine-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. A. A problematic pattern of cannabis use leading to clinically significant impairment or dis- tress, as manifested by at least two of the following, occurring within a 12-month period: 1. Cannabis is often taken in larger amounts or over a longer period than was intended. There is a persistent desire or unsuccessful efforts to cut down or control cannabis use. A great deal of time is spent in activities necessary to obtain cannabis, use canna- bis, or recover from its effects. Craving, or a strong desire or urge to use cannabis. Recurrent cannabis use resulting in a failure to fulfill major role obligations at work, school, or home. sonal problems caused or exacerbated by the effects of cannabis. Important social. occupational. or recreational activities are given up or reduced be- cause of cannabis use. Recurrent cannabis use in situations in which it is physically hazardous. Cannabis use is continued despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by cannabis. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of cannabis to achieve intoxication or desired effect. b. Markedly diminished effect with continued use of the same amount of cannabis. Withdrawal, as manifested by either of the following: a. The characteristic withdrawal syndrome for cannabis (refer to Criteria A and B of the criteria set for cannabis withdrawal. pp. 517—518). b. Cannabis (or a closely related substance) is taken to relieve or avoid withdrawal symptoms. Specify it:In early remission: After full criteria for cannabis use disorder were previously met, none of the criteria for cannabis use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, "Craving, or a strong de- sire or urge to use cannabis,” may be met). In sustained remission: After full criteria for cannabis use disorder were previously met, none of the criteria for cannabis use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving. or a strong desire or urge to use cannabis," may be present). Specify it:In a controlled environment: This additional specifier is used it the individual is in an environment where access to cannabis is restricted. Code based on current severity: Note for |CD-10-CM codes: If a cannabis intoxication, cannabis withdrawal, or another cannabis-induced mental disorder is also present, do not use the codes below for cannabis use disorder. Instead, the comorbid cannabis use disorder is indicated in the 4th character of the cannabis-induced disorder code (see the coding note for cannabis intoxication. cannabis withdrawal. or a specific cannabis-induced mental disor- der). For example. if there is comorbid cannabis-induced anxiety disorder and cannabis use disorder, only the cannabis-induced anxiety disorder code is given. with the 4th character indicating whether the comorbid cannabis use disorder is mild, moderate, or severe: F12.180 for mild cannabis use disorder with cannabis-induced anxiety disorder or F12.280 for a moderate or severe cannabis use disorder with cannabis-induced anxiety disorder. Specify current severity: 305.20 (F12.10) Mild: Presence of 2-3 symptoms. 304.30 (F12.20) Moderate: Presence of 4—5 symptoms.304.30 (F12.20) Severe: Presence of 6 or more symptoms.”In a controlled environment" applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance-free jails, therapeutic communities, and locked hospital units. frequency (e.g., days of use per month or times used per day) and / or dose (e.g., amount used per episode) of cannabis, as assessed by individual self—report, report of knowledge- able others, clinician’s observations, and biological testing. Cannabis use disorder and the other cannabis-related disorders include problems that are associated with substances derived from the cannabis plant and chemically similar syn- thetic compounds. Over time, this plant material has accumulated many names (e.g., weed, pot, herb, grass, reefer, mary jane, dagga, dope, bhang, skunk, boom, gangster, kit, and ganja). A concentrated extraction of the cannabis plant that is also commonly used is hashish. Cannabis is the generic and perhaps the most appropriate scientific term for the psychoactive substance(s) derived from the plant, and as such it is used in this manual to refer to all forms of cannabis-like substances, including synthetic cannabinoid com- pounds. Synthetic oral formulations (pill/capsules) of delta-9-tetrahydrocannabinol (delta-9-THC) are available by prescription for a number of approved medical indications (e.g., for with AIDS). Other synthetic cannabinoid compounds have been manufactured and dis- tributed for nonmedical use in the form of plant material that has been sprayed with a can- nabinoid formulation (e.g., K2, Spice, IWH-018, IWH-073). The cannabinoids have diverse effects in the brain, prominent among which are actions on C31 and C32 cannabinoid receptors that are found throughout the central nervous sys- tem. Endogenous ligands for these receptors behave essentially like neurotransmitters. The potency of cannabis (delta-9-THC concentration) that is generally available varies greatly, ranging from 1% to approximately 15% in typical cannabis plant material and 10%—20% in hashish. During the past two decades, a steady increase in the potency of seized cannabis has been observed. Cannabis is most commonly smoked via a variety of methods: pipes, water pipes (bongs or hookahs), cigarettes (joints or reefers), or, most recently, in the paper from hol- lowed out cigars (blunts). Cannabis is also sometimes ingested orally, typically by mixing it into food. More recently, devices have been developed in which cannabis is "vapor- ized.” Vaporization involves heating the plant material to release psychoactive cannabi- noids for inhalation. As with other psychoactive substances, smoking (and vaporization) typically produces more rapid onset and more intense experiences of the desired effects. Individuals who regularly use cannabis can develop all the general diagnostic features of a substance use disorder. Cannabis use disorder is commonly observed as the only sub— stance use disorder experienced by the individual; however, it also frequently occurs con- currently with other types of substance use disorders (i.e., alcohol, cocaine, opioid). In cases for which multiple types of substances are used, many times the individual may minimize the symptoms related to cannabis, as the symptoms may be less severe or cause less harm than those directly related to the use of the other substances. Pharmacological and behavioral tolerance to most of the effects of cannabis has been reported in individuals who use cannabis persistently. Generally, tolerance is lost when cannabis use is discontin- ued for a significant period of time (i.e., for at least several months). New to DSM—5 is the recognition that abrupt cessation of daily or near-daily cannabis use often results in the onset of a cannabis withdrawal syndrome. Common symptoms of withdrawal include irritability, anger or aggression, anxiety, depressed mood, restless- ness, sleep difficulty, and decreased appetite or weight loss. Although typically not as severe as alcohol or opiate withdrawal, the cannabis withdrawal syndrome can cause sig- nificant distress and contribute to difficulty quitting or relapse among those trying to abstain. Individuals with cannabis use disorder may use cannabis throughout the day over a period of months or years, and thus may spend many hours a day under the influence. Others may use less frequently, but their use causes recurrent problems related to family, school, work, or other important activities (e.g., repeated absences at work; neglect of fam- ily obligations). Periodic cannabis use and intoxication can negatively affect behavioral and cognitive functioning and thus interfere with optimal performance at work or school, or place the individual at increased physical risk when performing activities that could be physically hazardous (e.g., driving a car; playing certain sports; performing manual work activities, including operating machinery). Arguments with spouses or parents over the use of cannabis in the home, or its use in the presence of children, can adversely impact family functioning and are common features of those with cannabis use disorder. Last, in- dividuals with cannabis use disorder may continue using despite knowledge of physical problems (e.g., chronic cough related to smoking) or psychological problems (e.g., exces- sive sedation or exacerbation of other mental health problems) associated with its use. Whether or not cannabis is being used for legitimate medical reasons may also affect diagnosis. When a substance is taken as indicated for a medical condition, symptoms of tolerance and withdrawal will naturally occur and should not be used as the primary cri- teria for determining a diagnosis of a substance use disorder. Although medical uses of cannabis remain controversial and equivocal, use for medical circumstances should be considered when a diagnosis is being made. Individuals who regularly use cannabis often report that it is being used to cope with mood, sleep, pain, or other physiological or psychological problems, and those diagnosed with cannabis use disorder frequently do have concurrent other mental disorders. Careful assessment typically reveals reports of cannabis use contributing to exacerbation of these same symptoms, as well as other reasons for frequent use (e.g., to experience euphoria, to forget about problems, in response to anger, as an enjoyable social activity). Related to this issue, some individuals who use cannabis multiple times per day for the aforementioned reasons do not perceive themselves as (and thus do not report) spending an excessive amount of time under the influence or recovering from the effects of cannabis, despite be- ing intoxicated on cannabis or coming down from it effects for the majority of most days. An important marker of a substance use disorder diagnosis, particularly in milder cases, is continued use despite a clear risk of negative consequences to other valued activities or re- lationships (e.g., school, work, sport activity, partner or parent relationship). Because some cannabis users are motivated to minimize their amount or frequency of use, it is important to be aware of common signs and symptoms of cannabis use and intox- ication so as to better assess the extent of use. As with other substances, experienced users to detect when they are under the influence. Signs of acute and chronic use include red eyes (conjunctival injection), cannabis odor on clothing, yellowing of finger tips (from smoking joints), chronic cough, burning of incense (to hide the odor), and exaggerated craving and impulse for specific foods, sometimes at unusual times of the day or night. Cannabinoids, especially cannabis, are the most widely used illicit psychoactive sub- stances in the United States. The 12-month prevalence of cannabis use disorder (DSM-IV abuse and dependence rates combined) is approximately 3.4% among 12- to 17—year-olds and 1.5% among adults age 18 years and older. Rates of cannabis use disorder are greater among adult males (2.2%) than among adult females (0.8%) and among 12- to 17-year-old males (3.8%) than among 12- to 17—year-old females (3.0%). Twelve-month prevalence rates of cannabis use disorder among adults decrease with age, with rates highest among 18- to 29-year—olds (4.4%) and lowest among individuals age 65 years and older (0.01%). The high prevalence of cannabis use disorder likely reflects the much more widespread use of cannabis relative to other illicit drugs rather than greater addictive potential. Ethnic and racial differences in prevalence are moderate. Twelve-month prevalences of cannabis use disorder vary markedly across racial-ethnic subgroups in the United States. For 12- to 17-year-olds, rates are highest among Native American and Alaska Na- tives (7.1%) compared with Hispanics (4.1%), whites (3.4%), African Americans (2.7%), and Asian Americans and Pacific Islanders (0.9%). Among adults, the prevalence of can- nabis use disorder is also highest among Native Americans and Alaska Natives (3.4%) rel- ative to rates among African Americans (1.8%), whites (1.4%), Hispanics (1.2%), and Asian and Pacific Islanders (1.2%). During the past decade the prevalence of cannabis use disor- der has increased among adults and adolescents. Gender differences in cannabis use dis- order generally are concordant with those in other substance use disorders. Cannabis use disorder is more commonly observed in males, although the magnitude of this difference is less among adolescents. The onset of cannabis use disorder can occur at any time during or following adolescence, but onset is most commonly during adolescence or young adulthood. Although much less frequent, onset of cannabis use disorder in the preteen years or in the late 205 or older can occur. Recent acceptance by some of the use and availability of “medical marijuana” may increase the rate of onset of cannabis use disorder among older adults. Generally, cannabis use disorder develops over an extended period of time, although the progression appears to be more rapid in adolescents, particularly those with pervasive conduct problems. Most people who develop a cannabis use disorder typically establish a pattern of cannabis use that gradually increases in both frequency and amount. Cannabis, along with tobacco and alcohol, is traditionally the first substance that adolescents try. Many perceive cannabis use as less harmful than alcohol or tobacco use, and this percep- tion likely contributes to increased use. Moreover, cannabis intoxication does not typically result in as severe behavioral and cognitive dysfunction as does significant alcohol intox— ication, which may increase the probability of more frequent use in more diverse situa- tions than with alcohol. These factors likely contribute to the potential rapid transition from cannabis use to a cannabis use disorder among some adolescents and the common pattern of using throughout the day that is commonly observed among those with more severe cannabis use disorder. Cannabis use disorder among preteens, adolescents, and young adults is typically ex- pressed as excessive use with peers that is a component of a pattern of other delinquent behaviors usually associated with conduct problems. Milder cases primarily reflect con- tinued use despite clear problems related to disapproval of use by other peers, school ad- ministration, or family, which also places the youth at risk for physical or behavioral consequences. In more severe cases, there is a progression to using alone or using through— out the day such that use interferes with daily functioning and takes the place of previ- ously established, prosocial activities. With adolescent users, changes in mood stability, energy level, and eating patterns are commonly observed. These signs and symptoms are likely due to the direct effects of can- nabis use (intoxication) and the subsequent effects following acute intoxication (coming down), as well as attempts to conceal use from others. School-related problems are com— monly associated with cannabis use disorder in adolescents, particularly a dramatic drop in grades, truancy, and reduced interest in general school activities and outcomes. Cannabis use disorder among adults typically involves well-established patterns of daily cannabis use that continue despite clear psychosocial or medical problems. Many adults have experienced repeated desire to stop or have failed at repeated cessation attempts. Milder adult cases may resemble the more common adolescent cases in that cannabis use is not as frequent or heavy but continues despite potential significant consequences of sustained use. The rate of use among middle-age and older adults appears to be increasing, likely because of a cohort ef— fect resulting from high prevalence of use in the late 1960s and the 19705. Early onset of cannabis use (e.g., prior to age 15 years) is a robust predictor of the de- velopment of cannabis use disorder and other types of substance use disorders and mental disorders during young adulthood. Such early onset is likely related to concurrent other externalizing problems, most notably conduct disorder symptoms. However, early onset is also a predictor of internalizing problems and as such probably reflects a general risk factor for the development of mental health disorders. Temperamental. A history of conduct disorder in childhood or adolescence and antiso- cial personality disorder are risk factors for the development of many substance-related disorders, including cannabis-related disorders. Other risk factors include externalizing or internalizing disorders during childhood or adolescence. Youths with high behavioral disinhibition scores show early-onset substance use disorders, including cannabis use dis- order, multiple substance involvement, and early conduct problems. Environmental. Risk factors include academic failure, tobacco smoking, unstable or abu- sive family situation, use of cannabis among immediate family members, a family history of a substance use disorder, and low socioeconomic status. As with all substances of abuse, the ease of availability of the substance is a risk factor; cannabis is relatively easy to obtain in most cultures, which increases the risk of developing a cannabis use disorder. Genetic and physiological. Genetic influences contribute to the development of canna- bis use disorders. Heritable factors contribute between 30% and 80% of the total variance in risk of cannabis use disorders. It should be noted that common genetic and shared en- vironmental influences between cannabis and other types of substance use disorders sug- gest a common genetic basis for adolescent substance use and conduct problems. Cannabis is probably the world’s most commonly used illicit substance. Occurrence of cannabis use disorder across countries is unknown, but the prevalence rates are likely sim- ilar among developed countries. It is frequently among the first drugs of experimentation (often in the teens) of all cultural groups in the United States. Acceptance of cannabis for medical purposes varies widely across and within cultures. Cultural factors (acceptability and legal status) that might impact diagnosis relate to dif- ferential consequences across cultures for detection of use (i.e., arrest, school suspensions, or employment suspension). The general change in substance use disorder diagnostic cri- teria from DSM-IV to DSM-5 (i.e., removal of the recurrent substance-related legal prob- lems criterion) mitigates this concern to some degree. Biological tests for cannabinoid metabolites are useful for determining if an individual has recently used cannabis. Such testing is helpful in making a diagnosis, particularly in milder cases if an individual denies using while others (family, work, school) purport con- cern about a substance use problem. Because cannabinoids are fat soluble, they persist in bodily fluids for extended periods of time and are excreted slowly. Expertise in urine test- ing methods is needed to reliably interpret results. Functional Consequences of Cannabis Use DisorderFunctional consequences of cannabis use disorder are part of the diagnostic criteria. Many areas of psychosocial, cognitive, and health functioning may be compromised in relation to cannabis use disorder. Cognitive function, particularly higher executive function, ap- pears to be compromised in cannabis users, and this relationship appears to be dose de- pendent (both acutely and chronically). This may contribute to increased difficulty at school or work. Cannabis use has been related to a reduction in prosocial goal-directed ac- tivity, which some have labeled an amotivational syndrome, that manifests itself in poor school performance and employment problems. These problems may be related to perva- sive intoxication or recovery from the effects of intoxication. Similarly, cannabis-associated problems with social relationships are commonly reported in those with cannabis use dis- order. Accidents due to engagement in potentially dangerous behaviors while under the influence (e.g., driving, sport, recreational or employment activities) are also of concern. Cannabis smoke contains high levels of carcinogenic compounds that place chronic users at risk for respiratory illnesses similar to those experienced by tobacco smokers. Chronic cannabis use may contribute to the onset or exacerbation of many other mental disorders. In particular, concern has been raised about cannabis use as a causal factor in schizophrenia and other psychotic disorders. Cannabis use can contribute to the onset of an acute psy- chotic episode, can exacerbate some symptoms, and can adversely affect treatment of a major psychotic illness. Nonproblematic use of cannabis. The distinction between nonproblematic use of can- nabis and cannabis use disorder can be difficult to make because social, behavioral, or psy- chological problems may be difficult to attribute to the substance, especially in the context of use of other substances. Also, denial of heavy cannabis use and the attribution that can- nabis is related to or causing substantial problems are common among individuals who are referred to treatment by others (i.e., school, family, employer, criminal justice system). Other mental disorders. Cannabis-induced disorder may be characterized by symp- toms (e.g., anxiety) that resemble primary mental disorders (e.g., generalized anxiety dis- order vs. cannabis-induced anxiety disorder, with generalized anxiety, with onset during intoxication). Chronic intake of cannabis can produce a lack of motivation that resembles persistent depressive disorder (dysthymia). Acute adverse reactions to cannabis should be differentiated from the symptoms of panic disorder, major depressive disorder, delusional disorder, bipolar disorder, or schizophrenia, paranoid type. Physical examination will usually show an increased pulse and conjunctival injection. Urine toxicological testing can be helpful in making a diagnosis. Cannabis has been commonly thought of as a ”gateway” drug because individuals who frequently use cannabis have a much greater lifetime probability than nonusers of using what are commonly considered more dangerous substances, like opioids or cocaine. Can- nabis use and cannabis use disorder are highly comorbid with other substance use disor- ders. Co-occurring mental conditions are common in cannabis use disorder. Cannabis use has been associated with poorer life satisfaction; increased mental health treatment and hospitalization; and higher rates of depression, anxiety disorders, suicide attempts, and conduct disorder. Individuals with past-year or lifetime cannabis use disorder have high rates of alcohol use disorder (greater than 50%) and tobacco use disorder (53%). Rates of other substance use disorders are also likely to be high among individuals with cannabis use disorder. Among those seeking treatment for a cannabis use disorder, 74% report problematic use of a secondary or tertiary substance: alcohol (40%), cocaine (12%), meth- amphetamine (6%), and heroin or other opiates (2%). Among those younger than 18 years, 61% reported problematic use of a secondary substance: alcohol (48%), cocaine (4%), meth- amphetamine (2%), and heroin or other opiates (2%). Cannabis use disorder is also often observed as a secondary problem among those with a primary diagnosis of other substance use disorders, with approximately 25%—80% of those in treatment for another substance use disorder reporting use of cannabis. Individuals with past-year or lifetime diagnoses of cannabis use disorder also have high rates of concurrent mental disorders other than substance use disorders. Major de- pressive disorder (11%), any anxiety disorder (24%), and bipolar I disorder (13%) are quite common among individuals with a past-year diagnosis of a cannabis use disorder, as are antisocial (30%), obsessive-compulsive, (19%), and paranoid (18%) personality disorders. Approximately 33% of adolescents with cannabis use disorder have internalizing disor- ders (e.g., anxiety, depression, posttraumatic stress disorder), and 60% have externalizing disorders (e.g., conduct disorder, attention-deficit/hyperactivity disorder). Although cannabis use can impact multiple aspects of normal human functioning, in- cluding the cardiovascular, immune, neuromuscular, ocular, reproductive, and respira- tory systems, as well as appetite and cognition/perception, there are few clear medical conditions that commonly co-occur with cannabis use disorder. The most significant health effects of cannabis involve the respiratory system, and chronic cannabis smokers exhibit high rates of respiratory symptoms of bronchitis, sputum production, shortness of breath, and wheezing. A. Recent use of cannabis.B. Clinically significant problematic behavioral or psychological changes (e.g., impaired motor coordination, euphoria, anxiety, sensation of slowed time, impaired judgment, social withdrawal) that developed during, or shortly after. cannabis use. C. Two (or more) of the following signs or symptoms developing within 2 hours of canna- bis use: 1. Conjunctival injection. 2. Increased appetite.3. Dry mouth.4. Tachycardia.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another substance. Specify if:With perceptual disturbances: Hallucinations with intact reality testing or auditory, vi- sual. or tactile illusions occur in the absence of a delirium. Coding note: The ICD-9-CM code is 292.89. The |CD-10-CM code depends on whether or not there is a comorbid cannabis use disorder and whether or not there are perceptual disturbances. For cannabis intoxication, without perceptual disturbances: If a mild cannabis use disorder is comorbid, the lCD-10-CM code is F12.129, and if a moderate or severe cannabis use disorder is comorbid, the |CD-10-CM code is F12.229. If there is no co- morbid cannabis use disorder, then the |CD-10-CM code is F12.929. For cannabis intoxication, with perceptual disturbances: If a mild cannabis use disorder is comorbid, the |CD-10-CM code is F12.122, and if a moderate or severe cannabis use disorder is comorbid, the |CD-10-CM code is F12.222. If there is no co- morbid cannabis use disorder, then the |CD-10-CM code is F12.922. When hallucinations occur in the absence of intact reality testing, a diagnosis of substance/ medication—induced psychotic disorder should be considered. The essential feature of cannabis intoxication is the presence of clinically significant prob- lematic behavioral or psychological changes that develop during, or shortly after, canna- bis use (Criterion B). Intoxication typically begins with a ”high" feeling followed by symptoms that include euphoria with inappropriate laughter and grandiosity, sedation, lethargy, impairment in short-term memory, difficulty carrying out complex mental pro- cesses, impaired judgment, distorted sensory perceptions, impaired motor performance, and the sensation that time is passing slowly. Occasionally, anxiety (which can be severe), dysphoria, or social withdrawal occurs. These psychoactive effects are accompanied by two or more of the following signs, developing within 2 hours of cannabis use: conjuncti- val injection, increased appetite, dry mouth, and tachycardia (Criterion C). Intoxication develops within minutes if the cannabis is smoked but may take a few hours to develop if the cannabis is ingested orally. The effects usually last 3—4 hours, with the duration being somewhat longer when the substance is ingested orally. The magnitude of the behavioral and physiological changes depends on the dose, the method of adminis- tration, and the characteristics of the individual using the substance, such as rate of absorp- tion, tolerance, and sensitivity to the effects of the substance. Because most cannabinoids, including delta-9—tetrahydrocannabinol (delta-9-THC), are fat soluble, the effects of canna- bis or hashish may occasionally persist or reoccur for 12—24 hours because of the slow re- lease of psychoactive substances from fatty tissue or to enterohepatic circulation. The prevalence of actual episodes of cannabis intoxication in the general population is un- known. However, it is probable that most cannabis users would at some time meet criteria for cannabis intoxication. Given this, the prevalence of cannabis users and the prevalence of individuals experiencing cannabis intoxication are likely similar. Functional Consequences of Cannabis IntoxicationImpairment from cannabis intoxication may have serious consequences, including dys- function at work or school, social indiscretions, failure to fulfill role obligations, traffic ac- cidents, and having unprotected sex. In rare cases, cannabis intoxication may precipitate a psychosis that may vary in duration. Note that if the clinical presentation includes hallucinations in the absence of intact reality testing, a diagnosis of substance/medication-induced psychotic disorder should be con- sidered. Other substance intoxication. Cannabis intoxication may resemble intoxication with other types of substances. However, in contrast to cannabis intoxication, alcohol intoxica- tion and sedative, hypnotic, or anxiolytic intoxication frequently decrease appetite, in- crease aggressive behavior, and produce nystagmus or ataxia. Hallucinogens in low doses may cause a clinical picture that resembles cannabis intoxication. Phencyclidine, like can— nabis, can be smoked and also causes perceptual changes, but phencyclidine intoxication is much more likely to cause ataxia and aggressive behavior. Other cannabis-induced disorders. Cannabis intoxication is distinguished from the other cannabis-induced disorders (e.g., cannabis-induced anxiety disorder, with onset during intoxication) because the symptoms in these latter disorders predominate the clinical pre- sentation and are severe enough to warrant independent clinical attention. Diagnostic Criteria 292.0 (F12.288)A. Cessation of cannabis use that has been heavy and prolonged (i.e., usually daily or almost daily use over a period of at least a few months). B. Three (or more) of the following signs and symptoms develop within approximately 1 week after Criterion A: Irritability, anger, or aggression.Nervousness or anxiety.Sleep difficulty (e.g., insomnia, disturbing dreams).Decreased appetite or weight loss.Depressed mood.At least one of the following physical symptoms causing significant discomfort: ab- dominal pain, shakiness/tremors, sweating, fever, chills, or headache. C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. Coding note: The |CD-9-CM code is 292.0. The |CD-10-CM code for cannabis withdrawal is F12.288. Note that the |CD-10-CM code indicates the comorbid presence of a moderate or severe cannabis use disorder, reflecting the fact that cannabis withdrawal can only oc- cur in the presence of a moderate or severe cannabis use disorder. It is not permissible to code a comorbid mild cannabis use disorder with cannabis withdrawal. The essential feature of cannabis withdrawal is the presence of a characteristic withdrawal syndrome that develops after the cessation of or substantial reduction in heavy and pro- longed cannabis use. In addition to the symptoms in Criterion B, the following may also be observed postabstinence: fatigue, yawning, difficulty concentrating, and rebound periods of increased appetite and hypersomnia that follow initial periods of loss of appetite and in- somnia. For the diagnosis, withdrawal symptoms must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion C). Many cannabis users report smoking cannabis or taking other substances to help re- lieve withdrawal symptoms, and many report that withdrawal symptoms make quitting difficult or have contributed to relapse. The symptoms typically are not of sufficient se- verity to require medical attention, but medication or behavioral strategies may help alle— viate symptoms and improve prognosis in those trying to quit using cannabis. Cannabis withdrawal is commonly observed in individuals seeking treatment for can- nabis use as well as in heavy cannabis users who are not seeking treatment. Among indi- viduals who have used cannabis regularly during some period of their lifetime, up to one- third report having experienced cannabis withdrawal. Among adults and adolescents en— rolled in treatment or heavy cannabis users, 50%—95% report cannabis withdrawal. These findings indicate that cannabis withdrawal occurs among a substantial subset of regular cannabis users who try to quit. The amount, duration, and frequency of cannabis smoking that is required to produce an associated withdrawal disorder during a quit attempt are unknown. Most symptoms have their onset within the first 24—72 hours of cessation, peak within the first week, and last approximately 1—2 weeks. Sleep difficulties may last more than 30 days. Cannabis with- drawal has been documented among adolescents and adults. Withdrawal tends to be more common and severe among adults, most likely related to the more persistent and greater frequency and quantity of use among adults. Environmental. \Most likely, the prevalence and severity of cannabis withdrawal are greater among heavier cannabis users, and particularly among those seeking treatment for cannabis use disorders. Withdrawal severity also appears to be positively related to the se- verity of comorbid symptoms of mental disorders. Functional Consequences of Cannabis WithdrawalCannabis users report using cannabis to relieve withdrawal symptoms, suggesting that withdrawal might contribute to ongoing expression of cannabis use disorder. Worse out- comes may be associated with greater withdrawal. A substantial proportion of adults and adolescents in treatment for moderate to severe cannabis use disorder acknowledge mod- erate to severe withdrawal symptoms, and many complain that these symptoms make ces- sation more difficult. Cannabis users report having relapsed to cannabis use or initiating use of other drugs (e.g., tranquilizers) to provide relief from cannabis withdrawal symp— toms. Last, individuals living with cannabis users observe significant withdrawal effects, suggesting that such symptoms are disruptive to daily living. Because many of the symptoms of cannabis withdrawal are also symptoms of other sub- stance withdrawal syndromes or of depressive or bipolar disorders, careful evaluation should focus on ensuring that the symptoms are not better explained by cessation from an- other substance (e.g., tobacco or alcohol withdrawal), another mental disorder (general— ized anxiety disorder, major depressive disorder), or another medical condition. The following cannabis—induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication-induced mental disorders in these chapters): cannabis-induced psychotic disorder ("Schizophrenia Disorders”); and cannabis-induced sleep disorder (”Sleep-Wake Disorders"). For cannabis intoxication delirium, see the criteria and discussion of delirium in the chapter ”Neurocog- nitive Disorders.” These cannabis-induced disorders are diagnosed instead of cannabis in- toxication or cannabis withdrawal when the symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F12.99)This category applies to presentations in which symptoms characteristic of a cannabis- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific cannabis-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. A. A pattern of phencyclidine (or a pharmacologically similar substance) use leading to clinically significant impairment or distress, as manifested by at least two of the follow- ing, occurring within a 12-month period: 1. Phencyclidine is often taken in larger amounts or over a longer period than was in- tended. There is a persistent desire or unsuccessful efforts to cut down or control phency— clidine use. A great deal of time is spent in activities necessary to obtain phencyclidine, use the phencyclidine, or recover from its effects. Craving, or a strong desire or urge to use phencyclidine. Recurrent phencyclidine use resulting in a failure to fulfill major role obligations at work, school, or home (e.g., repeated absences from work or poor work performance related to phencyclidine use: phencyclidine-related absences, suspensions, or ex- pulsions from school; neglect of children or household). personal problems caused or exacerbated by the effects of the phencyclidine (e.g.. arguments with a spouse about consequences of intoxication; physical fights). Important social, occupational, or recreational activities are given up or reduced be- cause of phencyclidine use. Recurrent phencyclidine use in situations in which it is physically hazardous (e.g., driving an automobile or operating a machine when impaired by a phencyclidine). Phencyclidine use is continued despite knowledge of having a persistent or recur- rent physical or psychological problem that is likely to have been caused or exac- erbated by the phencyclidine. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of the phencyclidine to achieve intoxi- cation or desired effect. b. A markedly diminished effect with continued use of the same amount of the phencyclidine. Note: Withdrawal symptoms and signs are not established for phencyclidines, and so this criterion does not apply. (Withdrawal from phencyclidines has been reported in animals but not documented in human users.) Specify if:In early remission: After full criteria for phencyclidine use disorder were previously met, none of the criteria for phencyclidine use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the phencyclidine," may be met). In sustained remission: After full criteria for phencyclidine use disorder were previ- ously met, none of the criteria for phencyclidine use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the phencyclidine," may be met). Specify if:In a controlled environment: This additional specifier is used if the individual is in an environment where access to phencyclidines is restricted. Coding based on current severity: Note for ICD-10-CM codes: If a phencyclidine intoxica- tion or another phencyclidine-induced mental disorder is also present, do not use the codes below for phencyclidine use disorder. Instead, the comorbid phencyclidine use disorder is in- dicated in the 4th character of the phencyclidine-induced disorder code (see the coding note for phencyclidine intoxication or a specific phencyclidine-induced mental disorder). For ex- ample, it there is comorbid phencyclidine-induced psychotic disorder, only the phencyclidine- induced psychotic disorder code is given, with the 4th character indicating whether the co- morbid phencyclidine use disorder is mild, moderate, or severe: F16.159 for mild phencycli- dine use disorder with phencyclidine-induced psychotic disorder or F16.259 for a moderate or severe phencyclidine use disorder with phencyclidine-induced psychotic disorder. Specify current severity: 305.90 (F16.10) Mild: Presence of 2—3 symptoms. 304.60 (F16.20) Moderate: Presence of 4—5 symptoms.304.60 (F16.20) Severe: Presence of 6 or more symptoms."In a controlled environment" applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance-free jails, therapeutic communities, and locked hospital units. The phencyclidines (or phencyclidine-like substances) include phencyclidine (e.g., PCP, ”angel dust”) and less potent but similarly acting compounds such as ketamine, cyclohex- amine, and dizocilpine. These substances were first developed as dissociative anesthetics in the 19505 and became street drugs in the 19605. They produce feelings of separation from mind and body (hence ”dissociative”) in low doses, and at high doses, stupor and coma can result. These substances are most commonly smoked or taken orally, but they may also be snorted or injected. Although the primary psychoactive effects of PCP last for a few hours, the total elimination rate of this drug from the body typically extends 8 days or longer. The hallucinogenic effects in vulnerable individuals may last for weeks and may precipitate a persistent psychotic episode resembling schizophrenia. Ketamine has been observed to have utility in the treatment of major depressive disorder. Withdrawal symp- toms have not been clearly established in humans, and therefore the withdrawal criterion is not included in the diagnosis of phencyclidine use disorder. Phencyclidine may be detected in urine for up to 8 days or even longer at very high doses. In addition to laboratory tests to detect its presence, characteristic symptoms resulting from intoxication with phencyclidine or related substances may aid in its diagnosis. Phencycli- dine is likely to produce dissociative symptoms, analgesia, nystagmus, and hypertension, with risk of hypotension and shock. Violent behavior can also occur with phencyclidine use, as intoxicated persons may believe that they are being attacked. Residual symptoms following use may resemble schizophrenia. The prevalence of phencyclidine use disorder is unknown. Approximately 2.5% of the pop- ulation reports having ever used phencyclidine. The proportion of users increases with age, from 0.3% of 12- to 17-year-olds, to 1.3% of 18- to 25-year-olds, to 2.9% of those age 26 years and older reporting ever using phencyclidine. There appears to have been an in— crease among 12th graders in both ever used (to 2.3% from 1.8%) and past-year use (to 1.3% from 1.0%) of phencyclidine. Past-year use of ketamine appears relatively stable among 12th graders (1.6%—1.7% over the past 3 years). There is little information about risk factors for phencyclidine use disorder. Among indi- viduals admitted to substance abuse treatment, those for whom phencyclidine was the primary substance were younger than those admitted for other substance use, had lower educational levels, and were more likely to be located in the West and Northeast regions of the United States, compared with other admissions. Ketamine use in youths ages 16—23 years has been reported to be more common among whites (0.5%) than among other ethnic groups (range 0%—0.3%). Among individuals ad— mitted to substance abuse treatment, those for whom phencyclidine was the primary sub- stance were predominantly black (49%) or Hispanic (29%). Males make up about three-quarters of those with phencyclidine-related emergency room visits. Laboratory testing may be useful, as phencyclidine is present in the urine in intoxicated in- dividuals up to 8 days after ingestion. The individual’s history, along with certain physical signs, such as nystagmus, analgesia and prominent hypertension, may aid in distinguish- ing the phencyclidine clinical picture from that of other hallucinogens. Functional Consequences of Phencyclidine Use DisorderIn individuals with phencyclidine use disorder, there may be physical evidence of injuries from accidents, fights, and falls. Chronic use of phencyclidine may lead to deficits in mem- ory, speech, and cognition that may last for months. Cardiovascular and neurological tox- icities (e.g., seizures, dystonias, dyskinesias, catalepsy, hypothermia or hyperthermia) may result from intoxication with phencyclidine. Other consequences include intracranial hemorrhage, rhabdomyolysis, respiratory problems, and (occasionally) cardiac arrest. Other substance use disorders. Distinguishing the effects of phencyclidine from those of other substances is important, since it may be a common additive to other substances (e.g., cannabis, cocaine). Schizophrenia and other mental disorders. Some of the effects of phencyclidine and related substance use may resemble symptoms of other psychiatric disorders, such as psy- chosis (schizophrenia), low mood (major depressive disorder), violent aggressive be- haviors (conduct disorder, antisocial personality disorder). Discerning whether these behaviors occurred before the intake of the drug is important in the differentiation of acute drug effects from preexisting mental disorder. Phencyclidine-induced psychotic disorder should be considered when there is impaired reality testing in individuals experiencing disturbances in perception resulting from ingestion of phencyclidine. A. A problematic pattern of hallucinogen (other than phencyclidine) use leading to clini- cally significant impairment or distress, as manifested by at least two of the following. occurring within a 12-month period: 1. The hallucinogen is often taken in larger amounts or over a longer period than was intended. 2. There is a persistent desire or unsuccessful efforts to cut down or control halluci- nogen use. 3. A great deal of time is spent in activities necessary to obtain the hallucinogen, use the hallucinogen, or recover from its effects. 4. Craving, or a strong desire or urge to use the hallucinogen. 5. Recurrent hallucinogen use resulting in a failure to fulfill major role obligations at work, school, or home (e.g., repeated absences from work or poor work perfor- mance related to hallucinogen use; hallucinogen-related absences. suspensions, or expulsions from school; neglect of children or household). 6. Continued hallucinogen use despite having persistent or recurrent social or inter- personal problems caused or exacerbated by the effects of the hallucinogen (e.g., arguments with a spouse about consequences of intoxication; physical tights). 7. Important social, occupational, or recreational activities are given up or reduced be- cause of hallucinogen use. 8. Recurrent hallucinogen use in situations in which it is physically hazardous (e.g., driving an automobile or operating a machine when impaired by the hallucinogen). 9. Hallucinogen use is continued despite knowledge of having a persistent or recur- rent physical or psychological problem that is likely to have been caused or exac- erbated by the hallucinogen. 10. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of the hallucinogen to achieve intoxi- cation or desired effect. b. A markedly diminished effect with continued use of the same amount of the hal- lucinogen. Note: Withdrawal symptoms and signs are not established for hallucinogens, and so this criterion does not apply. Specify the particular hallucinogen.Specify ii:In early remission: After full criteria for other hallucinogen use disorder were previ- ously met, none of the criteria for other hallucinogen use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the hallucinogen,” may be met). In sustained remission: After full criteria for other hallucinogen use disorder were previously met, none of the criteria for other hallucinogen use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving. or a strong desire or urge to use the hallucinogen," may be met). Specify if:In a controlled environment: This additional specifier is used if the individual is in an environment where access to hallucinogens is restricted. Coding based on current severity: Note for ICD-10-CM codes: It a hallucinogen intoxication or another hallucinogen-induced mental disorder is also present, do not use the codes below for hallucinogen use disorder. Instead, the comorbid hallucinogen use disorder is indicated in the 4th character of the hallucinogen-induced disorder code (see the coding note for halluci- nogen intoxication or specific hallucinogen-induced mental disorder). For example, if there is comorbid hallucinogen-induced psychotic disorder and hallucinogen use disorder, only the hallucinogen-induced psychotic disorder code is given, with the 4th character indicating wheth- er the comorbid hallucinogen use disorder is mild, moderate, or severe: F16.159 for mild hal- lucinogen use disorder with hallucinogen-induced psychotic disorder or F16.259 for a moderate or severe hallucinogen use disorder with hallucinogen-induced psychotic disorder. Specify current severity: 305.30 (F16.10) Mild: Presence of 2—3 symptoms. 304.50 (F16.20) Moderate: Presence 014—5 symptoms.304.50 (F16.20) Severe: Presence of 6 or more symptoms."In a controlled environment" applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance—free jails, therapeutic communities, and locked hospital units. Hallucinogens comprise a diverse group of substances that, despite having different chem— ical structures and possibly involving different molecular mechanisms, produce similar alterations of perception, mood, and cognition in users. Hallucinogens included are phenyl- alkylamines (e.g., mescaline, DOM [2,5-dimethoxy—4-methylamphetamine], and MDMA [3,4—methylenedioxymethamphetamine; also called "ecstasy”]); the indoleamines, includ- ing psilocybin (i.e., psilocin) and dimethyltryptamine (DMT); and the ergolines, such as LSD (lysergic acid diethylamide) and morning glory seeds. In addition, miscellaneous other ethnobotanical compounds are classified as "hallucinogens," of which Salviu divinorum and jimsonweed are two examples. Excluded from the hallucinogen group are cannabis and its active compound, delta-9—tetrahydrocannabinol (THC) (see the section "Cannabis-Related Disorders”). These substances can have hallucinogenic effects but are diagnosed separately because of significant differences in their psychological and behavioral effects. Hallucinogens are usually taken orally, although some forms are smoked (e.g., DMT, salvia) or (rarely) taken intranasally or by injection (e.g., ecstasy). Duration of effects varies across types of hallucinogens. Some of these substances (i.e., LSD, MDMA) have a long half-life and extended duration such that users may spend hours to days using and / or re- covering from the effects of these drugs. However, other hallucinogenic drugs (e.g., DMT, salvia) are short acting. Tolerance to hallucinogens develops with repeated use and has been reported to have both autonomic and psychological effects. Cross-tolerance exists be- tween LSD and other hallucinogens (e.g., psilocybin, mescaline) but does not extend to other drug categories such as amphetamines and cannabis. MDMA /ecstasy as a hallucinogen may have distinctive effects attributable to both its hal— lucinogenic and its stimulant properties. Among heavy ecstasy users, continued use despite physical or psychological problems, tolerance, hazardous use, and spending a great deal of time obtaining the substance are the most commonly reported criteria—over 50% in adults and over 30% in a younger sample, while legal problems related to substance use and persis- tent desire/inability to quit are rarely reported. As found for other substances, diagnostic cri- teria for other hallucinogen use disorder are arrayed along a single continuum of severity. One of the generic criteria for substance use disorders, a clinically significant with— drawal syndrome, has not been consistently documented in humans, and therefore the di- agnosis of hallucinogen withdrawal syndrome is not included in DSM-5. However, there is evidence of withdrawal from MDMA, with endorsement of two or more withdrawal symptoms observed in 59%—98% in selected samples of ecstasy users. Both psychological and physical problems have been commonly reported as withdrawal problems. The characteristic symptom features of some of the hallucinogens can aid in diagnosis if urine or blood toxicology results are not available. For example, individuals who use LSD tend to experience visual hallucinations that can be frightening. Individuals intoxicated with hallucinogens may exhibit a temporary increase in suicidality. Of all substance use disorders, other hallucinogen use disorder is one of the rarest. The 12-month prevalence is estimated to be 0.5% among 12- to 17-year-olds and 0.1% among adults age 18 and older in the United States. Rates are higher in adult males (0.2%) compared with females (0.1%), but the opposite is observed in adolescent samples ages 12—17, in which the 12-month rate is slightly higher in females (0.6%) than in males (0.4%). Rates are highest in individuals younger than 30 years, with the peak occurring in individuals ages 18—29 years (0.6%) and decreasing to virtually 00% among individuals age 45 and older. There are marked ethnic differences in 12-month prevalence of other hallucinogen use disorder. Among youths ages 12—17 years, 12-month prevalence is higher among Native Americans and Alaska Natives (1.2%) than among Hispanics (0.6%), whites (0.6%), Afri- can Americans (0.2%), and Asian Americans and Pacific Islanders (0.2%). Among adults, 12-month prevalence of other hallucinogen use disorder is similar for Native Americans and Alaska Natives, whites, and Hispanics (all 0.2%) but somewhat lower for Asian Amer- icans and Pacific Islanders (0.07%) and African Americans (0.03%). Past-year prevalence is higher in clinical samples (e.g., 19% in adolescents in treatment). Among individuals cur- rently using hallucinogens in the general population, 7.8% (adult) to 17% (adolescent) had a problematic pattern of use that met criteria for past-year other hallucinogen use disorder. Among select groups of individuals who use hallucinogens (e.g., recent heavy ecstasy use), 73.5% of adults and 77% of adolescents have a problematic pattern of use that may meet other hallucinogen use disorder criteria. Unlike most substances where an early age at onset is associated with elevations in risk for the corresponding use disorder, it is unclear whether there is an association of an early age at onset with elevations in risk for other hallucinogen use disorder. However, patterns of drug consumption have been found to differ by age at onset, with early-onset ecstasy users more likely to be polydrug users than their later-onset counterparts. There may be a dis- proportionate influence of use of specific hallucinogens on risk of developing other hallu- cinogen use disorder, with use of ecstasy/MDMA increasing the risk of the disorder relative to use of other hallucinogens. Little is known regarding the course of other hallucinogen use disorder, but it is generally thought to have low incidence, low persistence, and high rates of recovery. Adolescents are es- pecially at risk for using these drugs, and it is estimated that 2.7% of youths ages 12—17 years have used one or more of these drugs in the past 12 months, with 44% having used ecstasy/ MDMA. Other hallucinogen use disorder is a disorder observed primarily in individuals younger than 30 years, with rates vanishingly rare among older adults. Temperamental. In adolescents but not consistently in adults, MDMA use is associated with an elevated rate of other hallucinogen use disorder. Other substance use disorders, particu- larly alcohol, tobacco, and cannabis, and major depressive disorder are associated with ele- vated rates of other hallucinogen use disorder. Antisocial personality disorder may be elevated among individuals who use more than two other drugs in addition to hallucinogens, compared with their counterparts with less extensive use history. The influence of adult anti- lucinogen use disorder may be stronger in females than in males. Use of specific hallucinogens (e.g., salvia) is prominent among individuals ages 18—25 years with other risk-taking behaviors and illegal activities. Cannabis use has also been implicated as a precursor to initiation of use of hallucinogens (e.g., ecstasy), along with early use of alcohol and tobacco. Higher drug use by peers and high sensation seeking have also been associated with elevated rates of ecstasy use. MDMA/ecstasy use appears to signify a more severe group of hallucinogen users. Genetic and physiological. Among male twins, total variance due to additive genetics has been estimated to range from 26% to 79%, with inconsistent evidence for shared envi- ronmental influences. Historically, hallucinogens have been used as part of established religious practices, such as the use of peyote in the Native American Church and in Mexico. Ritual use by indige- nous populations of psilocybin obtained from certain types of mushrooms has occurred in South America, Mexico, and some areas in the United States, or of ayahuasca in the Santo Daime and Uniéo de Vegetal sects. Regular use of peyote as part of religious rituals is not linked to neuropsychological or psychological deficits. For adults, no race or ethnicity dif- ferences for the full criteria or for any individual criterion are apparent at this time. In adolescents, females may be less likely than males to endorse "hazardous use,” and fe— male gender may be associated with increased odds of other hallucinogen use disorder. Laboratory testing can be useful in distinguishing among the different hallucinogens. However, because some agents (e.g., LSD) are so potent that as little as 75 micrograms can produce severe reactions, typical toxicological examination will not always reveal which substance has been used. There is evidence for long-term neurotoxic effects of MDMA/ecstasy use, including im- pairments in memory, psychological function, and neuroendocrine function; serotonin system dysfunction; and sleep disturbance; as well as adverse effects on brain microvas— culature, white matter maturation, and damage to axons. Use of MDMA/ecstasy may di- minish functional connectivity among brain regions. Other substance use disorders. The effects of hallucinogens must be distinguished from those of other substances (e.g., amphetamines), especially because contamination of the hallucinogens with other drugs is relatively common. Schizophrenia. Schizophrenia also must be ruled out, as some affected individuals (e.g., individuals with schizophrenia who exhibit paranoia) may falsely attribute their symp- toms to use of hallucinogens. Other mental disorders or medical conditions. Other potential disorders or conditions to consider include panic disorder, depressive and bipolar disorders, alcohol or sedative withdrawal, hypoglycemia and other metabolic conditions, seizure disorder, stroke, oph- thalmological disorder, and central nervous system tumors. Careful history of drug tak- ing, collateral reports from family and friends (if possible), age, clinical history, physical examination, and toxicology reports should be useful in arriving at the final diagnostic de- c1s1on. Adolescents who use MDMA/ecstasy and other hallucinogens, as well as adults who have recently used ecstasy, have a higher prevalence of other substance use disorders compared with nonhallucinogen substance users. Individuals who use hallucinogens exhibit eleva- tions of nonsubstance mental disorders (especially anxiety, depressive, and bipolar disor- ders), particularly with use of ecstasy and salvia. Rates of antisocial personality disorder (but not conduct disorder) are significantly elevated among individuals with other hallucinogen use disorder, as are rates of adult antisocial behavior. However, it is unclear whether the mental illnesses may be precursors to rather than consequences of other hallucinogen use disorder (see the section ”Risk and Prognostic Factors” for this disorder). Both adults and adolescents who use ecstasy are more likely than other drug users to be polydrug users and to have other drug use disorders. A. Recent use of phencyclidine (or a pharmacologically similar substance). B. Clinically significant problematic behavioral changes (e.g., belligerence, assaultive- ness, impulsiveness. unpredictability, psychomotor agitation, impaired judgment) that developed during. or shortly after, phencyclidine use. C. Within 1 hour, two (or more) of the following signs or symptoms: Note: When the drug is smoked, "snorted," or used intravenously, the onset may be particularly rapid. 1. Vertical or horizontal nystagmus.2. Hypertension or tachycardia.Numbness or diminished responsiveness to pain.Muscle rigidity.Seizures or coma.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another substance. Coding note: The |CD-9-CM code is 292.89. The |CD-10-CM code depends on whether there is a comorbid phencyclidine use disorder. If a mild phencyclidine use disorder is co- morbid, the |CD-10-CM code is F16.129, and if a moderate or severe phencyclidine use disorder is comorbid, the |CD-10-CM code is F16.229. If there is no comorbid phencycli- dine use disorder, then the |CD-10-CM code is F16.929. Note: In addition to the section ”Functional Consequences of Phencyclidine Intoxication,” see the corresponding section in phencyclidine use disorder. Phencyclidine intoxication reflects the clinically significant behavioral changes that occur shortly after ingestion of this substance (or a pharmacologically similar substance). The most common clinical presentations of phencyclidine intoxication include disorientation, confusion without hallucinations, hallucinations or delusions, a catatonic-like syndrome, and coma of varying severity. The intoxication typically lasts for several hours but, de- pending on the type of clinical presentation and whether other drugs besides phencycli- dine were consumed, may last for several days or longer. Use of phencyclidine or related substances may be taken as an estimate of the prevalence of intoxication. Approximately 2.5% of the population reports having ever used phency- clidine. Among high school students, 2.3% of 12th graders report ever using phencycli- dine, with 57% having used in the past 12 months. This represents an increase from prior to 2011. Past—year use of ketamine, which is assessed separately from other substances, has remained stable over time, with about 1.7% of 12th graders reporting use. Laboratory testing may be useful, as phencyclidine is detectable in urine for up to 8 days following use, although the levels are only weakly associated with an individual’s clinical presentation and may therefore not be useful for case management. Creatine phosphoki- nase and aspartate aminotransferase levels may be elevated. Functional Consequences of Phencyclidine IntoxicationPhencyclidine intoxication produces extensive cardiovascular and neurological (e.g., sei- zures, dystonias, dyskinesias, catalepsy, hypothermia or hyperthermia) toxicity. In particular, in the absence of intact reality testing (i.e., without insight into any percep- tual abnormalities), an additional diagnosis of phencyclidine-induced psychotic disorder should be considered. Other substance intoxication. Phencyclidine intoxication should be differentiated from intoxication due to other substances, including other hallucinogens; amphetamine, co- caine, or other stimulants; and anticholinergics, as well as withdrawal from benzodiaze- pines. Nystagmus and bizarre and violent behavior may distinguish intoxication due to phencyclidine from that due to other substances. Toxicological tests may be useful in mak- ing this distinction, since phencyclidine is detectable in urine for up to 8 days after use. However, there is a weak correlation between quantitative toxicology levels of phencycli- dine and clinical presentation that diminishes the utility of the laboratory findings for pa- tient management. Other conditions. Other conditions to be considered include schizophrenia, depression, withdrawal from other drugs (e.g., sedatives, alcohol), certain metabolic disorders like hy- poglycemia and hyponatremia, central nervous system tumors, seizure disorders, sepsis, neuroleptic malignant syndrome, and vascular insults. A. Recent use of a hallucinogen (other than phencyclidine).B. Clinically significant problematic behavioral or psychological changes (e.g., marked anxiety or depression, ideas of reference, fear of “losing one's mind," paranoid ide- ation, impaired judgment) that developed during, or shortly after, hallucinogen use. C. Perceptual changes occurring in a state of full wakefulness and alertness (e.g., sub- jective intensification of perceptions, depersonalization, derealization, illusions, hallu- cinations, synesthesias) that developed during, or shortly after, hallucinogen use. D. Two (or more) of the following signs developing during, or shortly after, hallucinogen use: Pupillary dilation.Blurring of vision.7. Incoordination.E. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another sub- stance. Coding note: The |CD-9-CM code is 292.89. The lCD-10-CM code depends on whether there is a comorbid hallucinogen use disorder. It a mild hallucinogen use disorder is co- morbid, the |CD-10-CM code is F16.129, and if a moderate or severe hallucinogen use disorder is comorbid, the |CD-10-CM code is F16.229. If there is no comorbid hallucinogen use disorder, then the |CD-10-CM code is F16.929. Note: For information on Associated Features Supporting Diagnosis and Culture-Related Diagnostic Issues, see the corresponding sections in other hallucinogen use disorder. Other hallucinogen intoxication reflects the clinically significant behavioral or psycholog- ical changes that occur shortly after ingestion of a hallucinogen. Depending on the specific hallucinogen, the intoxication may last only minutes (e.g., for salvia) or several hours or longer (e.g., for LSD [lysergic acid diethylamide] or MDMA [3,4-methylenedioxymetham- phetamine]). The prevalence of other hallucinogen intoxication may be estimated by use of those sub— stances. In the United States, 1.8% of individuals age 12 years or older report using hallu- cinogens in the past year. Use is more prevalent among younger individuals, with 3.1% of 12- to 17-year-olds and 7.1% of 18- to 25-year-olds using hallucinogens in the past year, compared with only 0.7% of individuals age 26 years or older. Twelve-month prevalence for hallucinogen use is more common in males (2.4%) than in females (1.2%), and even more so among 18- to 25-year-olds (9.2% for males vs. 5.0% for females). In contrast, among individuals ages 12—17 years, there are no gender differences (3.1% for both gen- ders). These figures may be used as proxy estimates for gender-related differences in the prevalence of other hallucinogen intoxication. Other hallucinogen intoxication may lead to increased suicidality, although suicide is rare among users of hallucinogens. Other hallucinogen intoxication can have serious consequences. The perceptual distur- bances and impaired judgment associated with other hallucinogen intoxication can result in injuries or fatalities from automobile crashes, physical fights, or unintentional self- injury (e.g., attempts to ”fly” from high places). Environmental factors and the personality and expectations of the individual using the hallucinogen may contribute to the nature of and severity of hallucinogen intoxication. Continued use of hallucinogens, particularly MDMA, has also been linked with neurotoxic effects.Other substance intoxication. Other hallucinogen intoxication should be differentiated from intoxication with amphetamines, cocaine, or other stimulants; anticholinergics; in— halants; and phencyclidine. Toxicological tests are useful in making this distinction, and determining the route of administration may also be useful. Other conditions. Other disorders and conditions to be considered include schizophre- nia, depression, withdrawal from other drugs (e.g., sedatives, alcohol), certain metabolic disorders (e.g., hypoglycemia), seizure disorders, tumors of the central nervous system, and vascular insults. Hallucinogen persisting perception disorder. Other hallucinogen intoxication is dis- tinguished from hallucinogen persisting perception disorder because the symptoms in the latter continue episodically or continuously for weeks (or longer) after the most recent in- toxication. Other hallucinogen-induced disorders. Other hallucinogen intoxication is distinguished from the other hallucinogen-induced disorders (e.g., hallucinogen—induced anxiety disor— der, with onset during intoxication) because the symptoms in these latter disorders pre- dominate the clinical presentation and are severe enough to warrant independent clinical attention. Diagnostic Criteria 292.89 (F16.983)A. Following cessation of use of a hallucinogen, the reexperiencing of one or more of the perceptual symptoms that were experienced while intoxicated with the hallucinogen (e.g., geometric hallucinations, false perceptions of movement in the peripheral visual fields, flashes of color, intensified colors, trails of images of moving objects, positive afterimages, halos around objects, macropsia and micropsia). B. The symptoms in Criterion A cause clinically significant distress or impairment in so- cial, occupational, or other important areas of functioning. C. The symptoms are not attributable to another medical condition (e.g., anatomical le- sions and infections of the brain, visual epilepsies) and are not better explained by an- other mental disorder (e.g., delirium, major neurocognitive disorder, schizophrenia) or hypnopompic hallucinations. The hallmark of hallucinogen persisting perception disorder is the reexperiencing, when the individual is sober, of the perceptual disturbances that were experienced while the individ- ual was intoxicated with the hallucinogen (Criterion A). The symptoms may include any perceptual perturbations, but visual disturbances tend to be predominant. Typical of the ab— normal visual perceptions are geometric hallucinations, false perceptions of movement in the peripheral visual fields, flashes of color, intensified colors, trails of images of moving ob- jects (i.e., images left suspended in the path of a moving object as seen in stroboscopic pho- tography), perceptions of entire objects, positive afterimages (i.e., a same-colored or complementary-colored ”shadow” of an object remaining after removal of the object), halos around objects, or misperception of images as too large (macropsia) or too small (micropsia). Duration of the visual disturbances may be episodic or nearly continuous and must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion B). The disturbances may last for weeks, months, or years. Other explanations for the disturbances (e.g., brain lesions, preexisting psychosis, seizure disor- ders, migraine aura without headaches) must be ruled out (Criterion C). diethylamide) use, but not exclusively. There does not appear to be a strong correlation be- tween hallucinogen persisting perception disorder and number of occasions of hallucino- gen use, with some instances of hallucinogen persisting perception disorder occurring in individuals with minimal exposure to hallucinogens. Some instances of hallucinogen per- sisting perception disorder may be triggered by use of other substances (e.g., cannabis or alcohol) or in adaptation to dark environments. Reality testing remains intact in individuals with hallucinogen persisting perception dis- order (i.e., the individual is aware that the disturbance is linked to the effect of the drug). If this is not the case, another disorder might better explain the abnormal perceptions. Prevalence estimates of hallucinogen persisting perception disorder are unknown. Initial prevalence estimates of the disorder among individuals who use hallucinogens is approx- imately 4.2%. Little is known about the development of hallucinogen persisting perception disorder. Its course, as suggested by its name, is persistent, lasting for weeks, months, or even years in certain individuals. There is little evidence regarding risk factors for hallucinogen persisting perception dis- order, although genetic factors have been suggested as a possible explanation underlying the susceptibility to LSD effects in this condition. some cases, many individuals with the disorder are able to suppress the disturbances and continue to function normally. Conditions to be ruled out include schizophrenia, other drug effects, neurodegenerative disorders, stroke, brain tumors, infections, and head trauma. Neuroimaging results in hal- lucinogen persisting perception disorder cases are typically negative. As noted earlier, re- ality testing remains intact (i.e., the individual is aware that the disturbance is linked to the effect of the drug); if this is not the case, another disorder (e.g., psychotic disorder, another medical condition) might better explain the abnormal perceptions. disorder are panic disorder, alcohol use disorder, and major depressive disorder. Other phencyclidine-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication-induced mental disorders in these chapters): phencyclidine-induced psychotic disorder (”Schizo- ders”). For phencyclidine-induced intoxication delirium, see the criteria and discussion of delirium in the chapter ”Neurocognitive Disorders.” These phencyclidine-induced disor- ders are diagnosed instead of phencyclidine intoxication only when the symptoms are suf- ficiently severe to warrant independent clinical attention. The following other hallucinogen-induced disorders are described in other Chapters of the manual with disorders with which they share phenomenology (see the substance/medi- cation-induced mental disorders in these chapters): other hallucinogen—induced psychotic disorder ("Anxiety Disorders"). For other hallucinogen intoxication delirium, see the cri- teria and discussion of delirium in the chapter "Neurocognitive Disorders.” These hallu— cinogen-induced disorders are diagnosed instead of other hallucinogen intoxication only when the symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F16.99)This category applies to presentations in which symptoms characteristic of a phencycli- dine-related disorder that cause clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning predominate but do not meet the full criteria for any specific phencyclidine-related disorder or any of the disorders in the sub- stance-related and addictive disorders diagnostic class. 292.9 (F16.99)This category applies to presentations in which symptoms characteristic of a hallucinogen- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other imponant areas of functioning predominate but do not meet the full criteria for any specific hallucinogen-related disorder or any of the disorders in the substance- related and addictive disorders diagnostic class. A. A problematic pattern of use of a hydrocarbon-based inhalant substance leading to clinically significant impairment or distress, as manifested by at least two of the follow- ing, occurring within a 12-month period: 1. The inhalant substance is often taken in larger amounts or over a longer period than was intended. 2. There is a persistent desire or unsuccessful efforts to cut down or control use of the inhalant substance. 3. A great deal of time is spent in activities necessary to obtain the inhalant substance, use it, or recover from its effects. 4. Craving, or a strong desire or urge to use the inhalant substance. 5. Recurrent use of the inhalant substance resulting in a failure to fulfill major role ob- ligations at work, school, or home. 6. Continued use of the inhalant substance despite having persistent or recurrent so- cial or interpersonal problems caused or exacerbated by the effects of its use. 7. Important social. occupational, or recreational activities are given up or reduced be- cause of use of the inhalant substance. 8. Recurrent use of the inhalant substance in situations in which it is physically haz- ardous. 9. Use of the inhalant substance is continued despite knowledge of having a persis- tent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by the substance. 10. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of the inhalant substance to achieve intoxication or desired effect. b. A markedly diminished effect with continued use of the same amount of the in- halant substance. Specify the particular inhalant: When possible, the particular substance involved should be named (e.g., “solvent use disorder”). Specify it:In early remission: After full criteria for inhalant use disorder were previously met, none of the criteria for inhalant use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, “Craving, or a strong de- sire or urge to use the inhalant substance,” may be met). In sustained remission: After full criteria for inhalant use disorder were previously met, none of the criteria for inhalant use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the inhalant substance,” may be met). Specify if:In a controlled environment: This additional specifier is used if the individual is in an environment where access to inhalant substances is restricted. Coding based on current severity: Note for |CD-10-CM codes: If an inhalant intoxication or another inhalant-induced mental disorder is also present, do not use the codes below for inhalant use disorder. Instead, the comorbid inhaIant use disorder is indicated in the 4th character of the inhalant—induced disorder code (see the coding note for inhalant intox- ication or a specific inhalant-induced mental disorder). For example, if there is comorbid inhalant—induced depressive disorder and inhalant use disorder, only the inhalant-induced depressive disorder code is given, with the 4th character indicating whether the comorbid inhalant use disorder is mild, moderate, or severe: F18.14 for mild inhalant use disorder disorder with inhalant-induced depressive disorder. Specify current severity: 305.90 (F18.10) Mild: Presence of 2—3 symptoms. 304.60 (F18.20) Moderate: Presence of 4—5 symptoms.304.60 (F1820) Severe: Presence of 6 or more symptoms.This manual reeognizes volatile hydrocarbon use meeting the above diagnostic criteria as inhalant use disorder. Volatile hydrocarbons are toxic gases from glues, fuels, paints/ and other volatile compounds. When possible, the particular substance involved should be named (e.g., ”toluene use disorder”). However, most compounds that are inhaled are a mixture of several substances that can produce psychoactive effects, and it is often difficult to ascertain the exact substance responsible for the disorder. Unless there is clear evidence that a single, unmixed substance has been used, the general term inhalant should be used in recording the diagnosis. Disorders arising from inhalation of nitrous oxide or of amyl-, buty1-, or isobutylnitrite are considered as other (or unknown) substance use disorder. "In a controlled environment” applies as a further specifier of remission if the individ- ual is both in remission and in a controlled environment (i.e., in early remission in a con- trolled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance—free jails, therapeutic communi- ties, and locked hospital units. The severity of individuals’ inhalant use disorder is assessed by the number of diag- nostic criteria endorsed. Changing severity of individuals’ inhalant use disorder across time is reflected by reductions in the frequency (e.g., days used per month) and / or dose (e.g., tubes of glue per day) used, as assessed by the individual’s self—report, report of oth- ers, clinician’s observations, and biological testing (when practical). Features of inhalant use disorder include repeated use of an inhalant substance despite the individual’s knowing that the substance is causing serious problems for the individual (Criterion A9). Those problems are reflected in the diagnostic criteria. Missing work or school or inability to perform typical responsibilities at work or school (Criterion A5), and continued use of the inhalant substance even though it causes arguments with family or friends, fights, and other social or interpersonal problems (Criterion A6), may be seen in inhalant use disorder. Limiting family contact, work or school obligations, or rec- reational activities (e.g., sports, games, hobbies) may also occur (Criterion A7). Use of inhal- ants when driving or operating dangerous equipment (Criterion A8) is also seen. Tolerance (Criterion A10) and mild withdrawal are each reported by about 10% of in- dividuals who use inhalants, and a few individuals use inhalants to avoid withdrawal. However, because the withdrawal symptoms are mild, this manual neither recognizes a diagnosis of inhalant withdrawal nor counts withdrawal complaints as a diagnostic crite- rion for inhalant use disorder. A diagnosis of inhalant use disorder is supported by recurring episodes of intoxication with negative results in standard drug screens (which do not detect inhalants); possession, or lingering odors, of inhalant substances; peri-oral or peri-nasal ”glue-sniffer's rash”; as- sociation with other individuals known to use inhalants; membership in groups with prev- alent inhalant use (e.g., some native or aboriginal communities, homeless children in street gangs); easy access to certain inhalant substances; paraphernalia possession; presence of the disorder’s characteristic medical complications (e.g., brain white matter pathology, rhabdomyolysis); and the presence of multiple substance use disorders. Inhalant use and inhalant use disorder are associated with past suicide attempts, especially among adults reporting previous episodes of low mood or anhedonia. About 0.4% of Americans ages 12—17 years have a pattern of use that meets criteria for in- halant use disorder in the past 12 months. Among those youths, the prevalence is highest in Native Americans and lowest in African Americans. Prevalence falls to about 0.1% among Americans ages 18—29 years, and only 0.02% when all Americans 18 years or older are con- sidered, with almost no females and a preponderance of European Americans. Of course, in isolated subgroups, prevalence may differ considerably from these overall rates. About 10% of 13-year-old American children report having used inhalants at least once; that percentage remains stable through age 17 years. Among those 12- to 17-year-olds who use inhalants, the more-used substances include glue, shoe polish, or toluene; gasoline or lighter fluid; or spray paints. Only 0.4% of 12- to 17-year-olds progress to inhalant use disorder; those youths tend to exhibit multiple other problems. The declining prevalence of inhalant use disorder after adolescence indicates that this disorder usually remits in early adulthood. Volatile hydrocarbon use disorder is rare in prepubertal children, most common in ad- olescents and young adults, and uncommon in older persons. Calls to poison-control cen- ters for ”intentional abuse" of inhalants peak with calls involving individuals at age 14 years. Of adolescents who use inhalants, perhaps one-fifth develop inhalant use disorder; a few die from inhalant-related accidents, or “sudden sniffing death”. But the disorder apparently remits in many individuals after adolescence. Prevalence declines dramatically among in- dividuals in their 205. Those with inhalant use disorder extending into adulthood often have severe problems: substance use disorders, antisocial personality disorder, and sui- cidal ideation with attempts. Temperamental. Predictors of progression from nonuse of inhalants, to use, to inhalant disorder or antisocial personality disorder. Other predictors are earlier onset of inhalant use and prior use of mental health services. Environmental. Inhalant gases are widely and legally available, increasing the risk of mis- use. Childhood maltreatment or trauma also is associated with youthful progression from inhalant non-use to inhalant use disorder. Genetic and physiological. Behavioral disinhibition is a highly heritable general propensity to not constrain behavior in socially acceptable ways, to break social norms and rules, and to take dangerous risks, pursuing rewards excessively despite dangers of adverse consequences. Youths with strong behavioral disinhibition show risk factors for inhalant use disorder: early- onset substance use disorder, multiple substance involvement, and early conduct problems. Because behavioral disinhibition is under strong genetic influence, youths in families with substance and antisocial problems are at elevated risk for inhalant use disorder. Certain native or aboriginal communities have experienced a high prevalence of inhalant problems. Also, in some countries, groups of homeless children in street gangs have ex- tensive inhalant use problems. Although the prevalence of inhalant use disorder is almost identical in adolescent males and females, the disorder is very rare among adult females. Urine, breath, or saliva tests may be valuable for assessing concurrent use of non-inhalant substances by individuals with inhalant use disorder. However, technical problems and the considerable expense of analyses make frequent biological testing for inhalants them- selves impractical. Functional Consequences of Inhalant Use DisorderBecause of inherent toxicity, use of butane or propane is not infrequently fatal. Moreover, rhythmia. Fatalities may occur even on the first inhalant exposure and are not thought to be dose-related. Volatile hydrocarbon use impairs neurobehavioral function and causes various neurological, gastrointestinal, cardiovascular, and pulmonary problems. Long-term inhalant users are at increased risk for tuberculosis, HIV/AIDS, sexually transmitted diseases, depression, anxiety, bronchitis, asthma, and sinusitis. Deaths may occur from respiratory depression, arrhythmias, asphyxiation, aspiration of vomitus, or accident and injury. Inhalant exposure (unintentional) from industrial or other accidents. This designation is used when findings suggest repeated or continuous inhalant exposure but the involved individual and other informants deny any history of purposeful inhalant use. Inhalant use (intentional), without meeting criteria for inhalant use disorder. Inhalant use is common among adolescents, but for most of those individuals, the inhalant use does not meet the diagnostic standard of two or more Criterion A items for inhalant use disorder in the past year. Inhalant intoxication, without meeting criteria for inhalant use disorder. Inhalant intox- uals whose use does not meet criteria for inhalant use disorder, which requires at least two of the 10 diagnostic criteria in the past year. Inhalant-induced disorders (i.e., inhalant-induced psychotic disorder, depressive dis- order, anxiety disorder, neurocognitive disorder, other inhalant-induced disorders) without meeting criteria for inhalant use disorder. Criteria are met for a psychotic, de- pressive, anxiety, or major neurocognitive disorder, and there is evidence from history, physical examination, or laboratory findings that the deficits are etiologically related to the effects of inhalant substances. Yet, criteria for inhalant use disorder may not be met (i.e., fewer than 2 of the 10 criteria were present). Other substance use disorders, especially those involving sedating substances (e.g., alcohol, benzodiazepines. barbiturates). Inhalant use disorder commonly co-occurs with other substance use disorders, and the symptoms of the disorders may be similar and overlapping. To disentangle symptom patterns, it is helpful to inquire about which symp- toms persisted during periods when some of the substances were not being used. Other toxic, metabolic, traumatic, neoplastic, or infectious disorders impairing central or peripheral nervous system function. Individuals with inhalant use disorder may pre- sent with symptoms of pernicious anemia, subacute combined degeneration of the spinal cord, psychosis, major or minor cognitive disorder, brain atrophy, leukoencephalopathy, and many other nervous system disorders. Of course, these disorders also may occur in the absence of inhalant use disorder. A history of little or no inhalant use helps to exclude inhalant use disorder as the source of these problems. Disorders of other organ systems. Individuals with inhalant use disorder may present with symptoms of hepatic or renal damage, rhabdomyolysis, methemoglobinemia, or symp- toms of other gastrointestinal, cardiovascular, or pulmonary diseases. A history of little or no inhalant use helps to exclude inhalant use disorder as the source of such medical problems. Individuals with inhalant use disorder receiving clinical care often have numerous other substance use disorders. Inhalant use disorder commonly co-occurs with adolescent con- duct disorder and adult antisocial personality disorder. Adult inhalant use and inhalant use disorder also are strongly associated with suicidal ideation and suicide attempts. A. Recent intended or unintended short-term, high-dose exposure to inhalant sub- stances, including volatile hydrocarbons such as toluene or gasoline. B. Clinically significant problematic behavioral or psychological changes (e.g., belliger- ence, assaultiveness, apathy, impaired judgment) that developed during, or shortly af- ter, exposure to inhalants. C. Two (or more) of the following signs or symptoms developing during, or shortly after, inhalant use or exposure: Slurred speech.Unsteady gait.Depressed reflexes.Psychomotor retardation.9. Tremor.10. Generalized muscle weakness.11. Blurred vision or diplopia.12. Stupor or coma.13. Euphoria.D. The signs or symptoms are not attributable to another medical condition and are not bet- ter explained by another mental disorder, including intoxication with another substance. Coding note: The |CD-9-CM code is 292.89. The |CD-10-CM code depends on whether there is a comorbid inhalant use disorder. It a mild inhalant use disorder is comorbid, the |CD-10-CM code is F18.129, and if a moderate or severe inhalant use disorder is comor- bid, the |CD-10—CM code is F18.229. If there is no comorbid inhalant use disorder, then the ICD-10-CM code is F18.929. Note: For information on Development and Course, Risk and Prognostic Factors, Culture- Related Diagnostic Issues, and Diagnostic Markers, see the corresponding sections in in- halant use disorder. Inhalant intoxication is an inhalant-related, clinically significant mental disorder that de- velops during, or immediately after, intended or unintended inhalation of a volatile hy- drocarbon substance. Volatile hydrocarbons are toxic gases from glues, fuels, paints, and other volatile compounds. When it is possible to do so, the particular substance involved should be named (e.g., toluene intoxication). Among those who do, the intoxication clears within a few minutes to a few hours after the exposure ends. Thus, inhalant intoxication usually occurs in brief episodes that may recur. Inhalant intoxication may be indicated by evidence of possession, or lingering odors, of in- halant substances (e.g., glue, paint thinner, gasoline, butane lighters); apparent intoxica- tion occurring in the age range with the highest prevalence of inhalant use (12—17 years); and apparent intoxication with negative results from the standard drug screens that usu- ally fail to identify inhalants. The prevalence of actual episodes of inhalant intoxication in the general population is un- known, but it is probable that most inhalant users would at some time exhibit use that would meet criteria for inhalant intoxication disorder. Therefore, the prevalence of inhal- ant use and the prevalence of inhalant intoxication disorder are likely similar. In 2009 and 2010, inhalant use in the past year was reported by 0.8% of all Americans older than 12 years; the prevalence was highest in younger age groups (3.6% for individuals 12 to 17 years old, and 1.7% for individuals 18 to 25 years old). Gender differences in the prevalence of inhalant intoxication in the general population are unknown. However, if it is assumed that most inhalant users eventually experience inhal- ant intoxication, gender differences in the prevalence of inhalant users likely approximate those in the proportions of males and females experiencing inhalant intoxication. Regard- ing gender differences in the prevalence of inhalant users in the United States, 1% of males older than 12 years and 0.7% of females older than 12 years have used inhalants in the pre- vious year, but in the younger age groups more females than males have used inhalants (e.g., among 12- to 17-year-olds, 3.6% of males and 4.2% of females). Functional Consequences of Inhalant IntoxicationUse of inhaled substances in a Closed container, such as a plastic bag over the head, may lead to unconsciousness, anoxia, and death. Separately, ”sudden sniffing death,” likely from cardiac arrhythmia or arrest, may occur with various volatile inhalants. The en- hanced toxicity of certain volatile inhalants, such as butane or propane, also causes fatal- ities. Although inhalant intoxication itself is of short duration, it may produce persisting medical and neurological problems, especially if the intoxications are frequent. Inhalant exposure, without meeting the criteria for inhalant intoxication disorder. The individual intentionally or unintentionally inhaled substances, but the dose was in- sufficient for the diagnostic criteria for inhalant use disorder to be met. stances, especially from sedating substances (e.g., alcohol, benzodiazepines, barbi- turates). These disorders may have similar signs and symptoms, but the intoxication is attributable to other intoxicants that may be identified via a toxicology screen. Differenti- ating the source of the intoxication may involve discerning evidence of inhalant exposure as described for inhalant use disorder. A diagnosis of inhalant intoxication may be sug- gested by possession, or lingering odors, of inhalant substances (e.g., glue, paint thinner, gasoline, butane lighters,); paraphernalia possession (e.g., rags or bags for concentrating the intoxicated individual possesses or uses inhalants; apparent intoxication despite neg- ative results on standard drug screens (which usually fail to identify inhalants); apparent intoxication occurring in that age range with the highest prevalence of inhalant use (12—17 years); association with others known to use inhalants; membership in certain small com- munities with prevalent inhalant use (e.g., some native or aboriginal communities, home- less street children and adolescents); or unusual access to certain inhalant substances. Other inhalant-related disorders. Episodes of inhalant intoxication do occur during, but are not identical with, other inhalant—related disorders. Those inhalant-related disorders are recognized by their respective diagnostic criteria: inhalant use disorder, inhalant- induced neurocognitive disorder, inhalant—induced psychotic disorder, inhalant-induced depressive disorder, inhalant-induced anxiety disorder, and other inhalant-induced dis- orders. Other toxic, metabolic, traumatic, neoplastic, or infectious disorders that impair brain function and cognition. Numerous neurological and other medical conditions may pro- duce the clinically significant behavioral or psychological changes (e.g., belligerence, as- saultiveness, apathy, impaired judgment) that also characterize inhalant intoxication. The following inhalant-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication- induced mental disorders in these chapters): inhalant-induced psychotic disorder (”Schizo- halant-induced major or mild neurocognitive disorder (”Neurocognitive Disorders"). For inhalant intoxication delirium, see the criteria and discussion of delirium in the chapter "Neurocognitive Disorders.” These inhalant-induced disorders are diagnosed instead of in- halant intoxication only when symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F18.99)This category applies to presentations in which symptoms characteristic of an inhalant- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific inhalant—related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. A. A problematic pattern of opioid use leading to clinically significant impairment or distress, as manifested by at least two of the following, occurring within a 12-month period: 1. Opioids are often taken in larger amounts or over a longer period than was in- tended. There is a persistent desire or unsuccessful efforts to cut down or control opioid use. A great deal of time is spent in activities necessary to obtain the opioid, use the opi- oid, or recover from its effects. Craving, or a strong desire or urge to use opioids. Recurrent opioid use resulting in a failure to fulfill major role obligations at work, school. or home. problems caused or exacerbated by the effects of opioids.Important social, occupational, or recreational activities are given up or reduced be- cause of opioid use. Recurrent opioid use in situations in which it is physically hazardous. Continued opioid use despite knowledge of having a persistent or recurrent physi- cal or psychological problem that is likely to have been caused or exacerbated by the substance. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of opioids to achieve intoxication or de- sired effect. b. A markedly diminished effect with continued use of the same amount of an opioid. Note: This criterion is not considered to be met for those taking opioids solely under appropriate medical supervision. Withdrawal, as manifested by either of the following: a. The characteristic opioid withdrawal syndrome (refer to Criteria A and B of the criteria set for opioid withdrawal, pp. 547—548). b. Opioids (or a closely related substance) are taken to relieve or avoid withdrawal symptoms. Note: This criterion is not considered to be met for those individuals taking opioids solely under appropriate medical supervision. Specify it:In early remission: After full criteria for opioid use disorder were previously met, none of the criteria for opioid use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, "Craving, or a strong desire or urge to use opioids," may be met). In sustained remission: After full criteria for opioid use disorder were previously met, none of the criteria for opioid use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong de- sire or urge to use opioids," may be met). Specify it:On maintenance therapy: This additional specifier is used if the individual is taking a prescribed agonist medication such as methadone or buprenorphine and none of the criteria for opioid use disorder have been met for that class of medication (except tol- erance to, or withdrawal from, the agonist). This category also applies to those individ- uals being maintained on a partial agonist, an agonist/antagonist, or a full antagonist such as oral naltrexone or depot naltrexone. In a controlled environment: This additional specifier is used if the individual is in an environment where access to opioids is restricted. Coding based on current severity: Note for |CD-10-CM codes: If an opioid intoxication, opioid withdrawal, or another opioid-induced mental disorder is also present, do not use the codes below for opioid use disorder. Instead, the comorbid opioid use disorder is indi- cated in the 4th character of the opioid-induced disorder code (see the coding note for opi- oid intoxication, opioid withdrawal, or a specific opioid-induced mental disorder). For example, if there is comorbid opioid-induced depressive disorder and opioid use disorder, only the opioid-induced depressive disorder code is given, with the 4th character indicating whether the comorbid opioid use disorder is mild, moderate, or severe: F1 1 .14 for mild opi- oid use disorder with opioid-induced depressive disorder or F11.24 for a moderate or se- vere opioid use disorder with opioid-induced depressive disorder. Specify current severity: 305.50 (F11.10) Mild: Presence of 2—3 symptoms. 304.00 (F11.20) Moderate: Presence of 4—5 symptoms.304.00 (F11.20) Severe: Presence of 6 or more symptoms.The ”on maintenance therapy” specifier applies as a further specifier of remission if the in- dividual is both in remission and receiving maintenance therapy. "In a controlled environ— ment” applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely super- vised and substance-free jails, therapeutic communities, and locked hospital units. Changing severity across time in an individual is also reflected by reductions in the fre- quency (e.g., days of use per month) and / or dose (e.g., injections or number of pills) of an opioid, as assessed by the individual’s self—report, report of knowledgeable others, clini— cian’s observations, and biological testing. Opioid use disorder includes signs and symptoms that reflect compulsive, prolonged self— administration of opioid substances that are used for no legitimate medical purpose or, if another medical condition is present that requires opioid treatment, that are used in doses greatly in excess of the amount needed for that medical condition. (For example, an indi- more than prescribed and not only because of persistent pain.) Individuals with opioid use disorder tend to develop such regular patterns of compulsive drug use that daily activities are planned around obtaining and administering opioids. Opioids are usually purchased on the illegal market but may also be obtained from physicians by falsifying or exagger- physicians. Health care professionals with opioid use disorder will often obtain opioids by patients or from pharmacy supplies. Most individuals with opioid use disorder have significant levels of tolerance and will experience withdrawal on abrupt discontinuation of opioid substances. Individuals with opioid use disorder often develop conditioned responses to drug-related stimuli (e.g., craving on seeing any heroin powder—like sub- stance)—a phenomenon that occurs with most drugs that cause intense psychological changes. These responses probably contribute to relapse, are difficult to extinguish, and typ- ically persist long after detoxification is completed. Opioid use disorder can be associated with a history of drug-related crimes (e.g., posses- sion or distribution of drugs, forgery, burglary, robbery, larceny, receiving stolen goods). Among health care professionals and individuals who have ready access to controlled substances, there is often a different pattern of illegal activities involving problems with state licensing boards, professional staffs of hospitals, or other administrative agencies. Marital difficulties (including divorce), unemployment, and irregular employment are of- ten associated with opioid use disorder at all socioeconomic levels. The 12-month prevalence of opioid use disorder is approximately 0.37% among adults age 18 years and older in the community population. This may be an underestimate because of the large number of incarcerated individuals with opioid use disorders. Rates are higher in males than in females (0.49% vs. 0.26%), with the male-to-female ratio typically being 1.521 for opioids other than heroin (i.e., available by prescription) and 3:1 for heroin. Female ad- olescents may have a higher likelihood of developing opioid use disorders. The preva- lence decreases with age, with the prevalence highest (0.82%) among adults age 29 years or younger, and decreasing to 0.09% among adults age 65 years and older. Among adults, the prevalence of opioid use disorder is lower among African Americans at 0.18% and over- represented among Native Americans at 1.25%. It is close to average among whites (0.38%), Asian or Pacific Islanders (0.35%), and Hispanics (0.39%).Among individuals in the United States ages 12—17 years, the overall 12-month prev- alence of opioid use disorder in the community population is approximately 1.0%, but the prevalence of heroin use disorder is less than 0.1%. By contrast, analgesic use disorder is prevalent in about 1.0% of those ages 12—17 years, speaking to the importance of opioid an- algesics as a group of substances with significant health consequences. The 12-month prevalence of problem opioid use in European countries in the commu- nity population ages 15—64 years is between 0.1% and 0.8%. The average prevalence of problem opioid use in the European Union and Norway is between 0.36% and 0.44%. Opioid use disorder can begin at any age, but problems associated with opioid use are most commonly first observed in the late teens or early 205. Once opioid use disorder develops, it usually continues over a period of many years, even though brief periods of abstinence are frequent. In treated populations, relapse following abstinence is common. Even though relapses do occur, and while some long—term mortality rates may be as high as 2% per year, about 20%—30% of individuals with opioid use disorder achieve long-term abstinence. An exception concerns that of military service personnel who became depen- dent on opioids in Vietnam; over 90% of this population who had been dependent on opi- oids during deployment in Vietnam achieved abstinence after they returned, but they experienced increased rates of alcohol or amphetamine use disorder as well as increased suicidality. Increasing age is associated with a decrease in prevalence as a result of early mortality and the remission of symptoms after age 40 years (i.e., ”maturing out”). However, many individuals continue have presentations that meet opioid use disorder criteria for decades. Genetic and physiological. The risk for opiate use disorder can be related to individual, family, peer, and social environmental factors, but within these domains, genetic factors play a particularly important role both directly and indirectly. For instance, impulsivity and novelty seeking are individual temperaments that relate to the propensity to develop a substance use disorder but may themselves be genetically determined. Peer factors may relate to genetic predisposition in terms of how an individual selects his or her environ- ment. Despite small variations regarding individual criterion items, opioid use disorder diag- nostic criteria perform equally well across most race/ethnicity groups. Individuals from resented among individuals with opioid use disorder. However, over time, opioid use disorder is seen more often among white middle-class individuals, especially females, suggesting that differences in use reflect the availability of opioid drugs and that other so- cial factors may impact prevalence. Medical personnel who have ready access to opioids may be at increased risk for opioid use disorder. Routine urine toxicology test results are often positive for opioid drugs in individuals with- opioid use disorder. Urine test results remain positive for most opioids (e.g., heroin, mor- phine, codeine, oxycodone, propoxyphene) for 12—36 hours after administration. Fentanyl dures for several days. Methadone, buprenorphine (or buprenorphine/naloxone combi- nation), and LAAM (L-alpha-acetylmethadol) have to be specifically tested for and will not cause a positive result on routine tests for opiates. They can be detected for several days up to more than 1 week. Laboratory evidence of the presence of other substances (e.g., co- caine, marijuana, alcohol, amphetamines, benzodiazepines) is common. Screening test re- sults for hepatitis A, B, and C virus are positive in as many as 80%—90% of injection opioid users, either for hepatitis antigen (signifying active infection) or for hepatitis antibody (sig- nifying past infection). HIV is prevalent in injection opioid users as well. Mildly elevated liver function test results are common, either as a result of resolving hepatitis or from toxic injury to the liver due to contaminants that have been mixed with the injected opioid. Sub- served for up to 6 months following opioid detoxification. Similar to the risk generally observed for all substance use disorders, opioid use disorder is associated with a heightened risk for suicide attempts and completed suicides. Particu- larly notable are both accidental and deliberate opioid overdoses. Some suicide risk factors overlap with risk factors for an opioid use disorder. In addition, repeated opioid intoxica- tion or withdrawal may be associated with severe depressions that, although temporary, can be intense enough to lead to suicide attempts and completed suicides. Available data suggest that nonfatal accidental opioid overdose (which is common) and attempted sui- cide are distinct clinically significant problems that should not be mistaken for each other. Functional Consequences of Opioid Use DisorderOpioid use is associated with a lack of mucous membrane secretions, causing dry mouth and nose. Slowing of gastrointestinal activity and a decrease in gut motility can produce severe constipation. Visual acuity may be impaired as a result of pupillary constriction with acute administration. In individuals who inject opioids, sclerosed veins (”tracks”) and puncture marks on the lower portions of the upper extremities are common. Veins sometimes become so severely sclerosed that peripheral edema develops, and individuals switch to injecting in veins in the legs, neck, or groin. When these veins become unusable, individuals often inject directly into their subcutaneous tissue ("skin-popping"), resulting in cellulit‘is, abscesses, and circular-appearing scars from healed skin lesions. Tetanus and Clostridium botulinum infections are relatively rare but extremely serious consequences of injecting opioids, especially with contaminated needles. Infections may also occur in other organs and include bacterial endocarditis, hepatitis, and HIV infection. Hepatitis C infec- tions, for example, may occur in up to 90% of persons who inject opioids. In addition, the prevalence of HIV infection can be high among individuals who inject drugs, a large pro- portion of whom are individuals with opioid use disorder. HIV infection rates have been reported to be as high as 60% among heroin users with opioid use disorder in some areas of the United States or the Russian Federation. However, the incidence may also be 10% or less in other areas, especially those where access to clean injection material and parapher- nalia is facilitated. Tuberculosis is a particularly serious problem among individuals who use drugs in- travenously, especially those who are dependent on heroin; infection is usually asymptom- atic and evident only by the presence of a positive tuberculin skin test. However, many cases of active tuberculosis have been found, especially among those who are infected with HIV. These individuals often have a newly acquired infection but also are likely to experience reactivation of a prior infection because of impaired immune function. Individuals who sniff heroin or other opioids into the nose (“snorting") often develop irritation of the nasal mucosa, sometimes accompanied by perforation of the nasal septum. Difficulties in sexual functioning are common. Males often experience erectile dysfunction during intoxication or chronic use. Females commonly have disturbances of reproductive function and irregular menses. In relation to infections such as cellulitis, hepatitis, HIV infection, tuberculosis, and en- docarditis, opioid use disorder is associated with a mortality rate as high as 1.5%—2% per year. Death most often results from overdose, accidents, injuries, AIDS, or other general medical complications. Accidents and injuries due to violence that is associated with buy- ing or selling drugs are common. In some areas, violence accounts for more opioid-related deaths than overdose or HIV infection. Physiological dependence on opioids may occur in about half of the infants born to females with opioid use disorder; this can produce a se- vere withdrawal syndrome requiring medical treatment. Although low birth weight is also seen in children of mothers with opioid use disorder, it is usually not marked and is generally not associated with serious adverse consequences. Opioid-induced mental disorders. Opioid-induced disorders occur frequently in individ- uals with opioid use disorder. Opioid-induced disorders may be characterized by symptoms (e.g., depressed mood) that resemble primary mental disorders (e.g., persistent depressive dis- order [dysthymia] vs. opioid-induced depressive disorder, with depressive features, with on- set during intoxication). Opioids are less likely to produce symptoms of mental disturbance than are most other drugs of abuse. Opioid intoxication and opioid withdrawal are distin- guished from the other opioid—induced disorders (e.g., opioid-induced depressive disorder, with onset during intoxication) because the symptoms in these latter disorders predominate the clinical presentation and are severe enough to warrant independent Clinical attention. Other substance intoxication. Alcohol intoxication and sedative, hypnotic, or anxiolytic intoxication can cause a clinical picture that resembles that for opioid intoxication. A diag- nosis of alcohol or sedative, hypnotic, or anxiolytic intoxication can usually be made based on the absence of pupillary constriction or the lack of a response to naloxone challenge. In some cases, intoxication may be due both to opioids and to alcohol or other sedatives. In these cases, the naloxone challenge will not reverse all of the sedative effects. Other withdrawal disorders. The anxiety and restlessness associated with opioid with- drawal resemble symptoms seen in sedative-hypnotic withdrawal. However, opioid Withdrawal is also accompanied by rhinorrhea, lacrimation, and pupillary dilation, which are not seen in sedative-type withdrawal. Dilated pupils are also seen in hallucinogen intoxication and stimulant intoxication. However, other signs or symptoms of opioid withdrawal, such as nausea, vomiting, diarrhea, abdominal cramps, rhinorrhea, or lacri— mation, are not present. The most common medical conditions associated with opioid use disorder are viral (e.g., HIV, hepatitis C virus) and bacterial infections, particularly among users of opioids by in- jection. These infections are less common in opioid use disorder with prescription opioids. Opioid use disorder is often associated with other substance use disorders, especially those involving tobacco, alcohol, cannabis, stimulants, and benzodiazepines, which are often taken to reduce symptoms of opioid withdrawal or craving for opioids, or to enhance the ef- fects of administered opioids. Individuals with opioid use disorder are at risk for the devel- opment of mild to moderate depression that meets symptomatic and duration criteria for persistent depressive disorder (dysthymia) or, in some cases, for major depressive disorder. of a preexisting primary depressive disorder. Periods of depression are especially common during chronic intoxication or in association with physical or psychosocial stressors that are related to the opioid use disorder. Insomnia is common, especially during withdrawal. An- tisocial personality disorder is much more common in individuals with opioid use disorder than in the general population. Posttraumatic stress disorder is also seen with increased fre- quency. A history of conduct disorder in childhood or adolescence has been identified as a significant risk factor for substance-related disorders, especially opioid use disorder. A. Recent use of an opioid.B. Clinically significant problematic behavioral or psychological changes (e.g.. initial eu- phoria followed by apathy, dysphoria, psychomotor agitation or retardation, impaired judgment) that developed during. or shortly after, opioid use. C. Pupillary constriction (or pupillary dilation due to anoxia from severe overdose) and one (or more) of the following signs or symptoms developing during, or shortly after, opioid use: 1. Drowsiness or coma. 2. Slurred speech.3. Impairment in attention or memory.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another sub- stance. Specify if:With perceptual disturbances: This specifier may be noted in the rare instance in which hallucinations with intact reality testing or auditory, visual, or tactile illusions oc- cur in the absence of a delirium. Coding note: The ICD-9-CM code is 292.89. The |CD-10-CM code depends on whether or not there is a comorbid opioid use disorder and whether or not there are perceptual dis- turbances. For oploid Intoxication without perceptual disturbances: If a mild opioid use dis- order is comorbid, the |CD-10-CM code is F11.129, and it a moderate or severe opioid use disorder is comorbid, the |CD-10-CM code is F11.229. If there is no comorbid opi- oid use disorder, then the |CD-10-CM code is F11.929. For opioid intoxication with perceptual disturbances: If a mild opioid use disorder is comorbid, the |CD-10-CM code is F11.122, and if a moderate or severe opioid use disorder is comorbid, the lCD-10-CM code is F11.222. If there is no comorbid opioid use disorder, then the lCD-10-CM code is F11.922. The essential feature of opioid intoxication is the presence of clinically significant prob— lematic behavioral or psychological changes (e.g., initial euphoria followed by apathy, dysphoria, psychomotor agitation or retardation, impaired judgment) that develop dur- ing, or shortly after, opioid use (Criteria A and B). Intoxication is accompanied by pupil- lary constriction (unless there has been a severe overdose with consequent anoxia and pupillary dilation) and one or more of the following signs: drowsiness (described as be- ing ”on the nod”), slurred speech, and impairment in attention or memory (Criterion C); drowsiness may progress to coma. Individuals with opioid intoxication may demonstrate inattention to the environment, even to the point of ignoring potentially harmful events. The signs or symptoms must not be attributable to another medical condition and are not better explained by another mental disorder (Criterion D). Other substance intoxication. Alcohol intoxication and sedative-hypnotic intoxication can cause a clinical picture that resembles opioid intoxication. A diagnosis of alcohol or sedative-hypnotic intoxication can usually be made based on the absence of pupillary con- striction or the lack of a response to a naloxone challenge. In some cases, intoxication may be due both to opioids and to alcohol or other sedatives. In these cases, the naloxone chal- lenge will not reverse all of the sedative effects. Other opioid-related disorders. Opioid intoxication is distinguished from the other opioid-induced disorders (e.g., opioid—induced depressive disorder, with onset during in- toxication) because the symptoms in the latter disorders predominate in the clinical pre- sentation and meet full criteria for the relevant disorder. Diagnostic Criteria 292.0 (F11.23)A. Presence of either of the following: 1. Cessation of (or reduction in) opioid use that has been heavy and prolonged (i.e., several weeks or longer). 2. Administration of an opioid antagonist after a period of opioid use. B. Three (or more) of the following developing within minutes to several days after Criterion A: 1. Dysphoric mood. Nausea or vomiting.Muscle aches.Lacrimation or rhinorrhea.Pupillary dilation, piloerection, or sweating.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. Coding note: The lCD-9-CM code is 292.0. The |CD-10-CM code for opioid withdrawal is F11.23. Note that the |CD-10-CM code indicates the comorbid presence of a moderate or severe opioid use disorder, reflecting the fact that opioid withdrawal can only occur in the presence of a moderate or severe opioid use disorder. It is not permissible to code a co- morbid mild opioid use disorder with opioid withdrawal. The essential feature of opioid withdrawal is the presence of a characteristic withdrawal syndrome that develops after the cessation of (or reduction in) opioid use that has been heavy and prolonged (Criterion A1). The withdrawal syndrome can also be precipitated by administration of an opioid antagonist (e.g., naloxone or naltrexone) after a period of opioid use (Criterion A2). This may also occur after administration of an opioid partial ag- onist such as buprenorphine to a person Currently using a full opioid agonist. Opioid withdrawal is characterized by a pattern of signs and symptoms that are oppo- site to the acute agonist effects. The first of these are subjective and consist of complaints of anxiety, restlessness, and an "achy feeling” that is often located in the back and legs, along with irritability and increased sensitivity to pain. Three or more of the following must be present to make a diagnosis of opioid withdrawal: dysphoric mood; nausea or vomiting; muscle aches; lacrimation or rhinorrhea; pupillary dilation, piloerection, or increased sweating; diarrhea; yawning; fever; and insomnia (Criterion B). Piloerection and fever are associated with more severe withdrawal and are not often seen in routine clinical practice because individuals with opioid use disorder usually obtain substances before with- drawal becomes that far advanced. These symptoms of opioid withdrawal must cause clinically significant distress or impairment in social, occupational, or other important ar- eas of functioning (Criterion C). The symptoms must not be attributable to another med- ical condition and are not better explained by another mental disorder (Criterion D). Meeting diagnostic criteria for opioid withdrawal alone is not sufficient for a diagnosis of opioid use disorder, but concurrent symptoms of craving and drug-seeking behavior are suggestive of comorbid opioid use disorder. ICD—10-CM codes only allow a diagnosis of opioid withdrawal in the presence of comorbid moderate to severe opioid use disorder. The speed and severity of withdrawal associated with opioids depend on the half-life of the opioid used. Most individuals who are physiologically dependent on short-acting drugs such as heroin begin to have withdrawal symptoms within 6—12 hours after the last dose. Symptoms may take 2—4 days to emerge in the case of longer-acting drugs such as metha- done, LAAM (L—alpha-acetylmethadol), or buprenorphine. Acute withdrawal symptoms for a short—acting opioid such as heroin usually peak within 1—3 days and gradually subside over a period of 5—7 days. Less acute withdrawal symptoms can last for weeks to months. These more chronic symptoms include anxiety, dysphoria, anhedonia, and insomnia. Males with opioid withdrawal may experience piloerection, sweating, and spontaneous ejaculations while awake. Opioid withdrawal is distinct from opioid use disorder and does not necessarily occur in the presence of the drug—seeking behavior associated with opioid use disorder. Opioid withdrawal may occur in any individual after cessation of re- peated use of an opioid, whether in the setting of medical management of pain, during opioid agonist therapy for opioid use disorder, in the context of private recreational use, or following attempts to self—treat symptoms of mental disorders with opioids. Among individuals from various clinical settings, opioid withdrawal occurred in 60% of individuals who had used heroin at least once in the prior 12 months. Opioid withdrawal is typical in the course of an opioid use disorder. It can be part of an es- calating pattern in which an opioid is used to reduce withdrawal symptoms, in turn lead- ing to more withdrawal at a later time. For persons with an established opioid use disorder, withdrawal and attempts to relieve withdrawal are typical. Other withdrawal disorders. The anxiety and restlessness associated with opioid with- drawal resemble symptoms seen in sedative-hypnotic withdrawal. However, opioid with- drawal is also accompanied by rhinorrhea, lacrimation, and pupillary dilation, which are not seen in sedative-type withdrawal. Other substance intoxication. Dilated pupils are also seen in hallucinogen intoxication and stimulant intoxication. However, other signs or symptoms of opioid withdrawal, such as nausea, vomiting, diarrhea, abdominal cramps, rhinorrhea, and lacrimation, are not present. Other opioid-induced disorders. Opioid withdrawal is distinguished from the other opioid-induced disorders (e.g., opioid-induced depressive disorder, with onset during withdrawal) because the symptoms in these latter disorders are in excess of those usually associated with opioid withdrawal and meet full criteria for the relevant disorder. The following opioid-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/ medication-induced mental disorders in these chapters): opioid-induced depressive disorder (”Depressive Dis- functions”). For opioid intoxication delirium and opioid withdrawal delirium, see the crite- ria and discussion of delirium in the chapter ”Neurocognitive Disorders.” These opioid- induced disorders are diagnosed instead of opioid intoxication or opioid withdrawal only when the symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F11.99)This category applies to presentations in which symptoms characteristic of an opioid- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific opioid-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. Sedative-, Hypnotic-,Sedative, Hypnotic, or Anxiolytic Use DisorderSedative, Hypnotic, or Anxiolytic IntoxicationSedative, Hypnotic, or Anxiolytic WithdrawalOther Sedative-, Hypnotic-, or Anxiolytic-lnduced DisordersUnspecified Sedative-, Hypnotic-, or Anxiolytic-Related DisorderSedative, Hypnotic, or Anxiolytic Use DisorderA. A problematic pattern of sedative, hypnotic, or anxiolytic use leading to clinically signif- icant impairment or distress, as manifested by at least two of the following, occurring within a 12-month period: 1. Sedatives, hypnotics, or anxiolytics are often taken in larger amounts or over a lon- ger period than was intended. There is a persistent desire or unsuccessful efforts to cut down or control sedative, hypnotic, or anxiolytic use. A great deal of time is spent in activities necessary to obtain the sedative, hypnotic, or anxiolytic; use the sedative, hypnotic, or anxiolytic; or recover from its effects. Craving, or a strong desire or urge to use the sedative, hypnotic, or anxiolytic. Recurrent sedative, hypnotic, or anxiolytic use resulting in a failure to fulfill major role obligations at work. school, or home (e.g., repeated absences from work or poor work performance related to sedative, hypnotic, or anxiolytic use; sedative-, hypnotic-, or anxiolytic-related absences, suspensions, or expulsions from school; neglect of children or household). Continued sedative, hypnotic, or anxiolytic use despite having persistent or re- current social or interpersonal problems caused or exacerbated by the effects of sedatives, hypnotics, or anxiolytics (e.g., arguments with a spouse about conse- quences of intoxication; physical tights). Important social, occupational, or recreational activities are given up or reduced be- cause of sedative. hypnotic, or anxiolytic use. Sedative, Hypnotic, or Anxiolytic Use Disorder 551 8. Recurrent sedative, hypnotic, or anxiolytic use in situations in which it is physically hazardous (e.g., driving an automobile or operating a machine when impaired by sedative, hypnotic, or anxiolytic use). 9. Sedative. hypnotic, or anxiolytic use is continued despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by the sedative, hypnotic, or anxiolytic. 10. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of the sedative, hypnotic, or anxiolytic to achieve intoxication or desired effect. b. A markedly diminished effect with continued use of the same amount of the sed- ative, hypnotic, or anxiolytic. Note: This criterion is not considered to be met for individuals taking sedatives, hypnotics, or anxiolytics under medical supervision. 11. Withdrawal, as manifested by either of the following: a. The characteristic withdrawal syndrome for sedatives, hypnotics, or anxiolytics (refer to Criteria A and B of the criteria set for sedative. hypnotic, or anxiolytic withdrawal, pp. 557—558). D. Sedatives, hypnotics, or anxiolytics (or a closely related substance, such as al- cohol) are taken to relieve or avoid withdrawal symptoms. Note: This criterion is not considered to be met for individuals taking sedatives, hypnotics, or anxiolytics under medical supervision. Specify it:In early remission: After full criteria for sedative, hypnotic, or anxiolytic use disorder were previously met, none of the criteria for sedative, hypnotic, or anxiolytic use disor- der have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the sedative, hypnotic, or anxiolytic,” may be met). In sustained remission: After full criteria for sedative, hypnotic, or anxiolytic use dis— order were previously met, none of the criteria for sedative, hypnotic, or anxiolytic use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4. “Craving. or a strong desire or urge to use the sedative, hypnotic, or anxiolytic,” may be met). Specify if:In a controlled environment: This additional specifier is used it the individual is in an environment where access to sedatives, hypnotics, or anxiolytics is restricted. Coding based on current severity: Note for |CD-10-CM codes: If a sedative, hypnotic. or anxiolytic intoxication; sedative, hypnotic, or anxiolytic withdrawal; or another sedative-, hypnotic-, or anxiolytic-induced mental disorder is also present, do not use the codes be- low for sedative, hypnotic, or anxiolytic use disorder. Instead the comorbid sedative, hyp- notic, or anxiolytic use disorder is indicated in the 4th character of the sedative, hypnotic-, or anxiolytic-induced disorder (see the coding note for sedative, hypnotic, or anxiolytic in- toxication; sedative, hypnotic, or anxiolytic withdrawal; or specific sedative-, hypnotic-, or anxiolytic-induced mental disorder). For example, if there is comorbid sedative-, hypnotic-, or anxiolytic-induced depressive disorder and sedative, hypnotic, or anxiolytic use disor- der, only the sedative-, hypnotic-, or anxiolytic-induced depressive disorder code is given with the 4th character indicating whether the comorbid sedative, hypnotic, or anxiolytic use disorder is mild, moderate, or severe: F13.14 for mild sedative, hypnotic, or anxiolytic use disorder with sedative-, hypnotic-, or anxiolytic-induced depressive disorder or F13.24 for a moderate or severe sedative, hypnotic, or anxiolytic use disorder with sedative-, hypnotic-, or anxiolytic-induced depressive disorder. Specify current severity: 305.40 (F13.10) Mild: Presence of 2-3 symptoms. 304.10 (F13.20) Moderate: Presence of 4—5 symptoms.304.10 (F13.20) Severe: Presence of 6 or more symptoms."In a controlled environment” applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance-free jails, therapeutic communities, and locked hospital units. Sedative, hypnotic, or anxiolytic substances include benzodiazepines, benzodiazepine- like drugs (e.g., zolpidem, zaleplon), carbamates (e.g., glutethimide, meprobamate), barbiturates (e.g., secobarbital), and barbiturate-like hypnotics (e.g., glutethimide, meth- aqualone). This class of substances includes all prescription sleeping medications and almost all prescription antianxiety medications. Nonbenzodiazepine antianxiety agents (e.g., buspirone, gepirone) are not included in this class because they do not appear to be associated with significant misuse. Like alcohol, these agents are brain depressants and can produce similar substance/ medication-induced and substance use disorders. Sedative, hypnotic, or anxiolytic sub- stances are available both by prescription and illegally. Some individuals who obtain these substances by prescription will develop a sedative, hypnotic, or anxiolytic use disorder, use disorder. In particular, sedatives, hypnotics, or anxiolytics with rapid onset and / or short to intermediate lengths of action may be taken for intoxication purposes, although longer acting substances in this class may be taken for intoxication as well. Craving (Criterion A4), either while using or during a period of abstinence, is a typical feature of sedative, hypnotic, or anxiolytic use disorder. Misuse of substances from this class may occur on its own or in conjunction with use of other substances. For example, in- dividuals may use intoxicating doses of sedatives or benzodiazepines to "come down” from cocaine or amphetamines or use high doses of benzodiazepines in combination with methadone to ”boost” its effects. Repeated absences or poor work performance, school absences, suspensions or expul- sions, and neglect of children or household (Criterion A5) may be related to sedative, hyp- notic, or anxiolytic use disorder, as may the continued use of the substances despite arguments with a spouse about consequences of intoxication or despite physical fights (Criterion A6). Limiting contact with family or friends, avoiding work or school, or stop- ping participation in hobbies, sports, or games (Criterion A7) and recurrent sedative, hypnotic, or anxiolytic use when driving an automobile or operating a machine when im- paired by sedative, hypnotic, or anxiolytic use (Criterion A8) are also seen in sedative, hypnotic, or anxiolytic use disorder. Very significant levels of tolerance and withdrawal can develop to the sedative, hyp- notic, or anxiolytic. There may be evidence of tolerance and withdrawal in the absence of a diagnosis of a sedative, hypnotic, or anxiolytic use disorder in an individual who has abruptly discontinued use of benzodiazepines that were taken for long periods of time at prescribed and therapeutic doses. In these cases, an additional diagnosis of sedative, hyp— notic, or anxiolytic use disorder is made only if other criteria are met. That is, sedative, hypnotic, or anxiolytic medications may be prescribed for appropriate medical purposes, and depending on the dose regimen, these drugs may then produce tolerance and with- Sedative, Hypnotic, or Anxiolytic Use Disorder 553 drawal. If these drugs are prescribed or recommended for appropriate medical purposes, and if they are used as prescribed, the resulting tolerance or withdrawal does not meet the criteria for diagnosing a substance use disorder. However, it is necessary to determine whether the drugs were appropriately prescribed and used (e.g., falsifying medical symp- toms to obtain the medication; using more medication than prescribed; obtaining the med— ication from several doctors without informing them of the others’ involvement). Given the unidimensional nature of the symptoms of sedative, hypnotic, or anxiolytic use disorder, severity is based on the number of criteria endorsed. Sedative, hypnotic, or anxiolytic use disorder is often associated with other substance use dis- orders (e.g., alcohol, cannabis, opioid, stimulant use disorders). Sedatives are often used to al- leviate the unwanted effects of these other substances. With repeated use of the substance, tolerance develops to the sedative effects, and a progressively higher dose is used. However, tolerance to brain stem depressant effects develops much more slowly, and as the individual takes more substance to achieve euphoria or other desired effects, there may be a sudden onset of respiratory depression and hypotension, which may result in death. Intense or repeated sedative, hypnotic, or anxiolytic intoxication may be associated with severe depression that, although temporary, can lead to suicide attempt and completed suicide. The 12-month prevalences of DSM-IV sedative, hypnotic, or anxiolytic use disorder are es- timated to be 0.3% among 12- to 17-year-olds and 0.2% among adults age 18 years and older. Rates of DSM-IV sedative, hypnotic, or anxiolytic use disorder are slightly greater among adult males (0.3%) than among adult females, but for 12- to 17-year-olds, the rate for females (0.4%) exceeds that for males (0.2%). The 12-month prevalence of DSM-IV sedative, hypnotic, or anxiolytic use disorder decreases as a function of age and is great- est among 18- to 29-year-olds (0.5%) and lowest among individuals 65 years and older (0.04%). Twelve-month prevalence of sedative, hypnotic, or anxiolytic use disorder varies across racial/ethnic subgroups of the US. population. For 12- to 17-year-olds, rates are greatest among whites (0.3%) relative to African Americans (0.2%), Hispanics (0.2%), Native Amer- icans (0.1%), and Asian Americans and Pacific Islanders (0.1%). Among adults, 12—month prevalence is greatest among Native Americans and Alaska Natives (0.8%), with rates of approximately 0.2% among African Americans, whites, and Hispanics and 0.1% among Asian Americans and Pacific Islanders.The usual course of sedative, hypnotic, or anxiolytic use disorder involves individuals in their teens or 205 who escalate their occasional use of sedative, hypnotic, or anxiolytic agents to the point at which they develop problems that meet criteria for a diagnosis. This ders (e.g., alcohol, opioids, stimulants). An initial pattern of intermittent use socially (e.g., at parties) can lead to daily use and high levels of tolerance. Once this occurs, an increasing level of interpersonal difficulties, as well as increasingly severe episodes of cognitive dys- fimction and physiological withdrawal, can be expected. The second and less frequently observed clinical course begins with an individual who originally obtained the medication by prescription from a physician, usually for the treat- ment of anxiety, insomnia, or somatic complaints. As either tolerance or a need for higher doses of the medication develops, there is a gradual increase in the dose and frequency of self—administration. The individual is likely to continue to justify use on the basis of his or her original symptoms of anxiety or insomnia, but substance—seeking behavior becomes more prominent, and the individual may seek out multiple physicians to obtain sufficient supplies of the medication. Tolerance can reach high levels, and withdrawal (including seizures and withdrawal delirium) may occur. As with many substance use disorders, sedative, hypnotic, or anxiolytic use disorder gen- erally has an onset during adolescence or early adult life. There is an increased risk for misuse and problems from many psychoactive substances as individuals age. In particular, cognitive impairment increases as a side effect with age, and the metabolism of sedatives, hypnotics, or anxiolytics decreases with age among older individuals. Both acute and chronic toxic effects of these substances, especially effects on cognition, memory, and motor coordination, are likely to increase with age as a consequence of pharmacodynamic and pharmacokinetic age- related changes. Individuals with major neurocognitive disorder (dementia) are more likely to develop intoxication and impaired physiological functioning at lower doses. Deliberate intoxication to achieve a ”high" is most likely to be observed in teenagers and individuals in their 205. Problems associated with sedatives, hypnotics, or anxiolytics are also seen in individuals in their 403 and older who escalate the dose of prescribed med- ications. In older individuals, intoxication can resemble a progressive dementia. Temperamental. Impulsivity and novelty seeking are individual temperaments that re- late to the propensity to develop a substance use disorder but may themselves be geneti- cally determined. Environmental. Since sedatives, hypnotics, or anxiolytics are all pharmaceuticals, a key risk factor relates to availability of the substances. In the United States, the historical pat- terns of sedative, hypnotic, or anxiolytic misuse relate to the broad prescribing patterns. For instance, a marked decrease in prescription of barbiturates was associated with an in- crease in benzodiazepine prescribing. Peer factors may relate to genetic predisposition in terms of how individuals select their environment. Other individuals at heightened risk might include those with alcohol use disorder who may receive repeated prescriptions in response to their complaints of alcohol-related anxiety or insomnia. Genetic and physiological. As for other substance use disorders, the risk for sedative, hypnotic, or anxiolytic use disorder can be related to individual, family, peer, social, and environmental factors. Within these domains, genetic factors play a particularly important role both directly and indirectly. Overall, across development, genetic factors seem to play a larger role in the onset of sedative, hypnotic, or anxiolytic use disorder as individuals age through puberty into adult life. Course modifiers. Early onset of use is associated with greater likelihood for develop- ing a sedative, hypnotic, or anxiolytic use disorder. There are marked variations in prescription patterns (and availability) of this class of sub- stances in different countries, which may lead to variations in prevalence of sedative, hyp- notic, or anxiolytic use disorders. Females may be at higher risk than males for prescription drug misuse of sedative, hyp- notic, or anxiolytic substances. Almost all sedative, hypnotic, or anxiolytic substances can be identified through labora- tory evaluations of urine or blood (the latter of which can quantify the amounts of these Sedative, Hypnotic, or Anxiolytic Use Disorder 555 agents in the body). Urine tests are likely to remain positive for up to approximately 1 week after the use of long-acting substances, such as diazepam or flurazepam. Sedative, Hypnotic, or Anxioiytic Use DisorderThe social and interpersonal consequences of sedative, hypnotic, or anxiolytic use disorder mimic those of alcohol in terms of the potential for disinhibited behavior. Accidents, interper- sonal difficulties (such as arguments or fights), and interference with work or school perfor- mance are all common outcomes. Physical examination is likely to reveal evidence of a mild decrease in most aspects of autonomic nervous system functioning, including a slower pulse, a slightly decreased respiratory rate, and a slight drop in blood pressure (most likely to occur with postural changes). At high doses, sedative, hypnotic, or anxiolytic substances can be le- thal, particularly when mixed with alcohol, although the lethal dosage varies considerably among the specific substances. Overdoses may be associated with a deterioration in vital signs that signals an impending medical emergency (e.g., respiratory arrest from barbiturates). There may be consequences of trauma (e.g., internal bleeding or a subdural hematoma) from accidents that occur while intoxicated. Intravenous use of these substances can result in med- ical complications related to the use of contaminated needles (e.g., hepatitis and HIV). Acute intoxication can result in accidental injuries and automobile accidents. For elderly individuals, even short—term use of these sedating medications at prescribed doses can be as- sociated with an increased risk for cognitive problems and falls. The disinhibiting effects of these agents, like alcohol, may potentially contribute to overly aggressive behavior, with sub- sequent interpersonal and legal problems. Accidental or deliberate overdoses, similar to those observed for alcohol use disorder or repeated alcohol intoxication, can occur. In contrast to their wide margin of safety when used alone, benzodiazepines taken in combination with al- cohol can be particularly dangerous, and accidental overdoses are reported commonly. Acci- and other nonbenzodiazepine sedatives (e.g., methaqualone), but since these agents are much less available than the benzodiazepines, the frequency of overdosing is low in most settings. Other mental disorders or medical conditions. Individuals with sedative-, hypnotic-, or anxiolytic-induced disorders may present with symptoms (e.g., anxiety) that resemble primary mental disorders (e.g., generalized anxiety disorder vs. sedative-, hypnotic-, or anxiolytic-induced anxiety disorder, with onset during withdrawal). The slurred speech, incoordination, and other associated features characteristic of sedative, hypnotic, or anx- iolytic intoxication could be the result of another medical condition (e.g., multiple sclero- sis) or of a prior head trauma (e.g., a subdural hematoma). Alcohol use disorder. Sedative, hypnotic, or anxiolytic use disorder must be differenti- ated from alcohol use disorder. Clinically appropriate use of sedative, hypnotic, or anxiolytic medications. Individuals may continue to take benzodiazepine medication according to a physician’s direction for a legitimate medical indication over extended periods of time. Even if physiological signs of tolerance or withdrawal are manifested, many of these individuals do not develop symp- toms that meet the criteria for sedative, hypnotic, or anxiolytic use disorder because they are not preoccupied with obtaining the substance and its use does not interfere with their performance of usual social or occupational roles. Nonmedical use of sedative, hypnotic, or anxiolytic agents is associated with alcohol use disorder, tobacco use disorder, and, generally, illicit drug use. There may also be an over- lap between sedative, hypnotic, or anxiolytic use disorder and antisocial personality dis- order; depressive, bipolar, and anxiety disorders; and other substance use disorders, such as alcohol use disorder and illicit drug use disorders. Antisocial behavior and antisocial personality disorder are especially associated with sedative, hypnotic, or anxiolytic use disorder when the substances are obtained illegally. Sedative, Hypnotic, or Anxiolytic IntoxicationA. Recent use of a sedative, hypnotic, or anxiolytic.B. Clinically significant maladaptive behavioral or psychological changes (e.g., inappro- priate sexual or aggressive behavior, mood lability, impaired judgment) that developed during, or shortly after, sedative, hypnotic, or anxiolytic use. C. One (or more) of the following signs or symptoms developing during. or shortly after, sedative, hypnotic. or anxiolytic use: Slurred speech.Unsteady gait.Impairment in cognition (e.g., attention, memory).6. Stupor or coma.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another sub- stance. Coding note: The lCD-9-CM code is 292.89. The |CD-10-CM code depends on whether there is a comorbid sedative, hypnotic, or anxiolytic use disorder. It a mild sedative, hyp- notic, or anxiolytic use disorder is comorbid, the ICD-10-CM code is F13.129, and if a mod- erate or severe sedative, hypnotic, or anxiolytic use disorder is comorbid, the |CD-10-CM code is F13.229. If there is no comorbid sedative, hypnotic, or anxiolytic use disorder, then the |CD-10-CM code is F13.929. Note: For information on Development and Course; Risk and Prognostic Factors; Culture- Related Diagnostic Issues; Diagnostic Markers; Functional Consequences of Sedative,Hypnotic, or Anxiolytic Intoxication; and Comorbidity, see the corresponding sections in sedative, hypnotic, or anxiolytic use disorder. The essential feature of sedative, hypnotic, or anxiolytic intoxication is the presence of clini- cally significant maladaptive behavioral or psychological changes (e.g., inappropriate sexual or aggressive behavior, mood lability, impaired judgment, impaired social or occupational functioning) that develop during, or shortly after, use of a sedative, hypnotic, or anxiolytic (Criteria A and B). As with other brain depressants, such as alcohol, these behaviors may be ac- companied by slurred speech, incoordination (at levels that can interfere with driving abilities and with performing usual activities to the point of causing falls or automobile accidents), an unsteady gait, nystagmus, impairment in cognition (e.g., attentional or memory problems), and stupor or coma (Criterion C). Memory impairment is a prominent feature of sedative, hyp- notic, or anxiolytic intoxication and is most often characterized by an anterograde amnesia that resembles ”alcoholic blackouts,” which can be disturbing to the individual. The symptoms must not be attributable to another medical condition and are not better explained by another Sedative, Hypnotic, or Anxiolytic Withdrawal 557 mental disorder (Criterion D). Intoxication may occur in individuals who are receiving these substances by prescription, are borrowing the medication from friends or relatives, or are de- liberately taking the substance to achieve intoxication. Associated features include taking more medication than prescribed, taking multiple dif— ferent medications, or mixing sedative, hypnotic, or anxiolytic agents with alcohol, which can markedly increase the effects of these agents. The prevalence of sedative, hypnotic, or anxiolytic intoxication in the general population is unclear. However, it is probable that most nonmedical users of sedatives, hypnotics, or anxiolytics would at some time have signs or symptoms that meet criteria for sedative, hypnotic, or anxiolytic intoxication; if so, then the prevalence of nonmedical sedative, hypnotic, or anxiolytic use in the general population may be similar to the prevalence of sedative, hypnotic, or anxiolytic intoxication. For example, tranquilizers are used non- medically by 2.2% of Americans older than 12 years. Alcohol use disorders. Since the clinical presentations may be identical, distinguishing sed- ative, hypnotic, or anxiolytic intoxication from alcohol use disorders requires evidence for re- cent ingestion of sedative, hypnotic, or anxiolytic medications by self-report, informant report, or toxicological testing. Many individuals who misuse sedatives, hypnotics, or anxiolytics may also misuse alcohol and other substances, and so multiple intoxication diagnoses are possible. Alcohol intoxication. Alcohol intoxication may be distinguished from sedative, hypnotic, or anxiolytic intoxication by the smell of alcohol on the breath. Otherwise, the features of the two disorders may be similar. _Other sedative-, hypnotic-, or anxiolytic-induced disorders. Sedative, hypnotic, or anx- iolytic intoxication is distinguished from the other sedative—, hypnotic-, or anxiolytic- induced disorders (e.g., sedative, hypnotic-, or anxiolytic-induced anxiety disorder, with onset during withdrawal) because the symptoms in the latter disorders predominate in the clinical presentation and are severe enough to warrant clinical attention. Neurocognitive disorders. In situations of cognitive impairment, traumatic brain in- jury, and delirium from other causes, sedatives, hypnotics, or anxiolytics may be intoxi- cating at quite low dosages. The differential diagnosis in these complex settings is based on the predominant syndrome. An additional diagnosis of sedative, hypnotic, or anxio- lytic intoxication may be appropriate even if the substance has been ingested at a low dos- age in the setting of these other (or similar) co-occurring conditions. Sedative, Hypnotic, or Anxiolytic WithdrawalA. Cessation of (or reduction in) sedative, hypnotic, or anxiolytic use that has been pro- longed. B. Two (or more) of the following, developing within several hours to a few days after the ces- sation of (or reduction in) sedative, hypnotic. or anxiolytic use described in Criterion A: 1. Autonomic hyperactivity (e.g., sweating or pulse rate greater than 100 bpm). 2. Hand tremor.Nausea or vomiting.Transient visual, tactile, or auditory hallucinations or illusions.Psychomotor agitation.Grand mal seizures.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. Specify if:With perceptual disturbances: This specifier may be noted when hallucinations with in- tact reality testing or auditory, visual, or tactile illusions occur in the absence of a delirium. Coding note: The |CD-9-CM code is 292.0. The |CD-10-CM code for sedative, hypnotic, or anxiolytic withdrawal depends on whether or not there is a comorbid moderate or se- vere sedative, hypnotic, or anxiolytic use disorder and whether or not there are perceptual disturbances. For sedative, hypnotic, or anxiolytic withdrawal without perceptual distur- bances, the |CD-10—CM code is F13.239. For sedative, hypnotic, or anxiolytic withdrawal with perceptual disturbances, the ICD-10-CM code is F13.232. Note that the lCD-10-CM codes indicate the comorbid presence of a moderate or severe sedative, hypnotic, or anx- iolytic use disorder, reflecting the fact that sedative, hypnotic, or anxiolytic withdrawal can only occur in the presence of a moderate or severe sedative, hypnotic, or anxiolytic use disorder. It is not permissible to code a comorbid mild sedative, hypnotic, or anxiolytic use disorder with sedative, hypnotic, or anxiolytic withdrawal. Note: For information on Development and Course; Risk and Prognostic Factors; Culture- Related Diagnostic Issues; Functional Consequences of Sedative, Hypnotic, or Anxiolytic Withdrawal; and Comorbidity, see the corresponding sections in sedative, hypnotic, or anxiolytic use disorder. The essential feature of sedative, hypnotic, or anxiolytic withdrawal is the presence of a char- acteristic syndrome that develops after a marked decrease in or cessation of intake after several weeks or more of regular use (Criteria A and B). This withdrawal syndrome is characterized by two or more symptoms (similar to alcohol withdrawal) that include autonomic hyperactivity (e.g., increases in heart rate, respiratory rate, blood pressure, or body temperature, along with sweating); a tremor of the hands; insomnia; nausea, sometimes accompanied by vomiting; anxiety; and psychomotor agitation. A grand mal seizure may occur in perhaps as many as 20%—30% of individuals undergoing untreated withdrawal from these substances. In severe withdrawal, visual, tactile, or auditory hallucinations or illusions can occur but are usually in the context of a delirium. If the individual’s reality testing is intact (i.e., he or she knows the substance is causing the hallucinations) and the illusions occur in a clear sensorium, the spec- ifier “with perceptual disturbances” can be noted. When hallucinations occur in the absence of intact reality testing, a diagnosis of substance/medication-induced psychotic disorder should be considered. The symptoms cause clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning (Criterion C). The symptoms must not be attributable to another medical condition and are not better explained by another mental dis- order (e.g., alcohol withdrawal or generalized anxiety disorder) (Criterion D). Relief of with- drawal symptoms with administration of any sedative-hypnotic agent would support a diagnosis of sedative, hypnotic, or anxiolytic withdrawal. Sedative, Hypnotic, or Anxiolytic Withdrawal 559The timing and Severity of the withdrawal syndrome will differ depending on the specific substance and its pharmacokinetics and pharmacodynamics. For example, withdrawal from shorter-acting substances that are rapidly absorbed and that have no active metabo— lites (e.g., triazolam) can begin within hours after the substance is stopped; withdrawal from substances with long—acting metabolites (e.g., diazepam) may not begin for 1—2 days or longer. The withdrawal syndrome produced by substances in this class may be charac- terized by the development of a delirium that can be life-threatening. There may be evi- dence of tolerance and withdrawal in the absence of a diagnosis of a substance use for long periods of time at prescribed and therapeutic doses. However, ICD-10-CM codes only allow a diagnosis of sedative, hypnotic, or anxiolytic withdrawal in the presence of comorbid moderate to severe sedative, hypnotic, or anxiolytic use disorder. The time course of the withdrawal syndrome is generally predicted by the half—life of the substance. Medications whose actions typically last about 10 hours or less (e.g., loraz- epam, oxazepam, temazepam) produce withdrawal symptoms within 6—8 hours of de- creasing blood levels that peak in intensity on the second day and improve markedly by the fourth or fifth day. For substances with longer half—lives (e.g., diazepam), symptoms may not develop for more than 1 week, peak in intensity during the second week, and de- crease markedly during the third or fourth week. There may be additional longer-term symptoms at a much lower level of intensity that persist for several months, The longer the substance has been taken and the higher the dosages used, the more likely it is that there will be severe withdrawal. However, withdrawal has been reported with as little as 15 mg of diazepam (or its equivalent in other benzodiazepines) when taken daily for several months. Doses of approximately 40 mg of diazepam (or its equivalent) daily are more likely to produce clinically relevant withdrawal symptoms, and even higher doses (e.g., 100 mg of di- azepam) are more likely to be followed by withdrawal seizures or delirium. Sedative, hyp- notic, or anxiolytic withdrawal delirium is characterized by disturbances in consciousness and cognition, with visual, tactile, or auditory hallucinations. When present, sedative, hypnotic, or anxiolytic withdrawal delirium should be diagnosed instead of withdrawal. The prevalence of sedative, hypnotic, or anxiolytic withdrawal is unclear. Seizures and autonomic instability in the setting of a history of prolonged exposure to sed- ative, hypnotic, or anxiolytic medications suggest a high likelihood of sedative, hypnotic, or anxiolytic withdrawal. Other medical disorders. The symptoms of sedative, hypnotic, or anxiolytic with- drawal may be mimicked by other medical conditions (e.g., hypoglycemia, diabetic keto- acidosis). If seizures are a feature of the sedative, hypnotic, or anxiolytic withdrawal, the differential diagnosis includes the various causes of seizures (e.g., infections, head injury, poisonings). Essential tremor. Essential tremor, a disorder that frequently runs in families, may erroneously suggest the tremulousness associated with sedative, hypnotic, or anxiolytic withdrawal. Alcohol withdrawal. Alcohol withdrawal produces a syndrome very similar to that of sedative, hypnotic, or anxiolytic withdrawal. Other sedative-, hypnotic-, or anxiolytic-induced disorders. Sedative, hypnotic, or anx- iolytic withdrawal is distinguished from the other sedative-, hypnotic-, or anxiolytic- induced disorders (e.g., sedative—, hypnotic-, or anxiolytic-induced anxiety disorder, with onset during withdrawal) because the symptoms in the latter disorders predominate in the clinical presentation and are severe enough to warrant clinical attention. Anxiety disorders. Recurrence or worsening of an underlying anxiety disorder pro- duces a syndrome similar to sedative, hypnotic, or anxiolytic withdrawal. Withdrawal would be suspected with an abrupt reduction in the dosage of a sedative, hypnotic, or anx- iolytic medication. When a taper is under way, distinguishing the withdrawal syndrome from the underlying anxiety disorder can be difficult. As with alcohol, lingering with— drawal symptoms (e.g., anxiety, moodiness, and trouble sleeping) can be mistaken for non-substance/medication-induced anxiety or depressive disorders (e.g., generalized anxiety disorder). Other Sedative-, Hypnotic-,The following sedative-, hypnotic-, or anxiolytic-induced disorders are described in other chapters of the manual with disorders with which they share phenomenology (see the sub- stance/medication-induced mental disorders in these chapters): sedative-, hypnotic, or Disorders”); sedative-, hypnotic-, or anxiolytic-induced bipolar disorder (”Bipolar and Re- lated Disorders”); sedative-, hypnotic-, or anxiolytic-induced depressive disorder (”De- pressive Disorders”); sedative-, hypnotic-, or anxiolytic-induced anxiety disorder (”Anxiety Disorders”); sedative-, hypnotic-, or anxiolytic-induced sleep disorder (”Sleep- Wake Disorders"); sedative-, hypnotic-, or anxiolytic-induced sexual dysfunction (”Sex- ual Dysfunctions”); and sedative-, hypnotic-, or anxiolytic—induced major or mild neuro- cognitive disorder ("Neurocognitive Disorders"). For sedative, hypnotic, or anxiolytic intoxication delirium and sedative, hypnotic, or anxiolytic withdrawal delirium, see the criteria and discussion of delirium in the chapter ”Neurocognitive Disorders.” These sed- ative-, hypnotic-, or anxiolytic-induced disorders are diagnosed instead of sedative, hyp- notic, or anxiolytic intoxication or sedative, hypnotic, or anxiolytic withdrawal only when the symptoms are sufficiently severe to warrant independent clinical attention. Unspecified Sedative-, Hypnotic-, 292.9 (F13.99)This category applies to presentations in which symptoms characteristic of a sedative-, hypnotic-, or anxiolytic-related disorder that cause clinically significant distress or impair- ment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any specific sedative-. hypnotic-, or anxiolytic-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. A. A pattern of amphetamine-type substance, cocaine, or other stimulant use leading to clinically significant impairment or distress, as manifested by at least two of the follow- ing, occurring within a 12-month period: 1. The stimulant is often taken in larger amounts or over a longer period than was in- tended. There is a persistent desire or unsuccessful efforts to cut down or control stimulant use. A great deal of time is spent in activities necessary to obtain the stimulant, use the stimulant, or recover from its effects. Craving, or a strong desire or urge to use the stimulant. Recurrent stimulant use resulting in a failure to fulfill major role obligations at work, school, or home. sonal problems caused or exacerbated by the effects of the stimulant. Important social, occupational. or recreational activities are given up or reduced be- cause of stimulant use. Recurrent stimulant use in situations in which it is physically hazardous. Stimulant use is continued despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by the stimulant. Tolerance. as defined by either of the following: a. A need for markedly increased amounts of the stimulant to achieve intoxication or desired effect. b. A markedly diminished effect with continued use of the same amount of the stimulant. Note: This criterion is not considered to be met for those taking stimulant medica- tions solely under appropriate medical supervision, such as medications for atten- tion-deficit/hyperactivity disorder or narcolepsy. Withdrawal, as manifested by either of the following: a. The characteristic withdrawal syndrome tor the stimulant (refer to Criteria A and B of the criteria set for stimulant withdrawal, p. 569). b. The stimulant (or a closely related substance) is taken to relieve or avoid with- drawal symptoms. Note: This criterion is not considered to be met for those taking stimulant medica- tions solely under appropriate medical supervision, such as medications for atten- tion-deficit/hyperactivity disorder or narcolepsy. Specify if:In early remission: After full criteria for stimulant use disorder were previously met, none of the criteria for stimulant use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, “Craving, or a strong de- sire or urge to use the stimulant," may be met). In sustained remission: After full criteria for stimulant use disorder were previously met, none of the criteria for stimulant use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the stimulant," may be met). Specify it:In a controlled environment: This additional specifier is used it the individual is in an environment where access to stimulants is restricted. Coding based on current severity: Note for |CD-10-CM codes: If an amphetamine in- toxication, amphetamine withdrawal, or another amphetamine-induced mental disorder is also present, do not use the codes below for amphetamine use disorder. Instead, the co- morbid amphetamine use disorder is indicated in the 4th character of the amphetamine- induced disorder code (see the coding note for amphetamine intoxication, amphetamine withdrawal, or a specific amphetamine-induced mental disorder). For example, if there is amine-type or other stimulant use disorder, only the amphetamine-type or other stimulant- induced depressive disorder code is given, with the 4th character indicating whether the comorbid amphetamine-type or other stimulant use disorder is mild, moderate, or severe: F15.14 for mild amphetamine-type or other stimulant use disorder with amphetamine-type or other stimulant-induced depressive disorder or F15.24 for a moderate or severe am- phetamine-type or other stimulant use disorder with amphetamine-type or other stimulant- induced depressive disorder. Similarly. if there is comorbid cocaine-induced depressive disorder and cocaine use disorder, only the cocaine-induced depressive disorder code is given, with the 4th character indicating whether the comorbid cocaine use disorder is mild, moderate, or severe: F14.14 for mild cocaine use disorder with cocaine-induced depressive disorder or F14.24 for a moderate or severe cocaine use disorder with cocaine-induced depressive disorder. Specify current severity:Mild: Presence of 2—3 symptoms.305.70 (F15.10) Amphetamine-type substance 305.60 (F14.10) Cocaine 305.70 (F15.10) Other or unspecified stimulant Moderate: Presence of 4—5 symptoms.304.40 (F15.20) Amphetamine-type substance 304.20 (F14.20) Cocaine 304.40 (F15.20) Other or unspecified stimulant Severe: Presence of 6 or more symptoms.304.40 (F15.20) Amphetamine-type substance 304.20 (F14.20) Cocaine 304.40 (F15.20) Other or unspecified stimulant ”In a controlled environment” applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance-free jails, therapeutic communities, and locked hospital units. The amphetamine and amphetamine—type stimulants include substances with a substi- tuted-phenylethylamine structure, such as amphetamine, dextroamphetamine, and meth- amphetamine. Also included are those substances that are structurally different but have similar effects, such as methylphenidate. These substances are usually taken orally or in- travenously, although methamphetamine is also taken by the nasal route. In addition to the synthetic amphetamine—type compounds, there are naturally occurring, plant-derived stimulants such as khfit. Amphetamines and other stimulants may be obtained by prescrip- tion for the treatment of obesity, attention-deficit/hyperactivity disorder, and narcolepsy. Consequently, prescribed stimulants may be diverted into the illegal market. The effects of amphetamines and amphetamine-like drugs are similar to those of cocaine, such that the criteria for stimulant use disorder are presented here as a single disorder with the ability to specify the particular stimulant used by the individual. Cocaine may be consumed in sev- eral preparations (e.g., coca leaves, coca paste, cocaine hydrochloride, and cocaine alka- loids such as freebase and crack) that differ in potency because of varying levels of purity and speed of onset. However, in all forms of the substance, cocaine is the active ingredient. Cocaine hydrochloride powder is usually ”snorted” through the nostrils or dissolved in water and injected intravenously. Individuals exposed to amphetamine-type stimulants or cocaine can develop stimu- lant use disorder as rapidly as 1 week, although the onset is not always this rapid. Re- gardless of the route of administration, tolerance occurs with repeated use. Withdrawal symptoms, particularly hypersomnia, increased appetite, and dysphoria, can occur and can enhance craving. Most individuals with stimulant use disorder have experienced tol- erance or withdrawal. Use patterns and course are similar for disorders involving amphetamine-type stimu- lants and cocaine, as both substances are potent central nervous system stimulants with similar psychoactive and sympathomimetic effects. Amphetamine-type stimulants are longer acting than cocaine and thus are used fewer times per day. Usage may be chronic or episodic, with binges punctuated by brief non-use periods. Aggressive or violent behavior is common when high doses are smoked, ingested, or administered intravenously. Intense temporary anxiety resembling panic disorder or generalized anxiety disorder, as well as paranoid ideation and psychotic episodes that resemble schizophrenia, is seen with high— dose use. Withdrawal states are associated with temporary but intense depressive symptoms that can resemble a major depressive episode; the depressive symptoms usually resolve within 1 week. Tolerance to amphetamine-type stimulants develops and leads to escalation of the dose. Conversely, some users of amphetamine-type stimulants develop sensitization, characterized by enhanced effects. When injected or smoked, stimulants typically produce an instant feeling of well—being, confidence, and euphoria. Dramatic behavioral changes can rapidly develop with stimu— lant use disorder. Chaotic behavior, social isolation, aggressive behavior, and sexual dys- function can result from long-term stimulant use disorder. Individuals with acute intoxication may present with rambling speech, headache, tran- sient ideas of reference, and tinnitus. There may be paranoid ideation, auditory halluci- nations in a clear sensorium, and tactile hallucinations, which the individual usually recognizes as drug effects. Threats or acting out of aggressive behavior may occur. Depres— sion, suicidal ideation, irritability, anhedonia, emotional lability, or disturbances in atten- tion and concentration commonly occur during withdrawal. Mental disturbances associated with cocaine use usually resolve hours to days after cessation of use but can persist for 1 month. Physiological changes during stimulant withdrawal are opposite to those of the intoxication phase, sometimes including bradycardia. Temporary depressive symptoms may meet symptomatic and duration criteria for major depressive episode. Histories con- sistent with repeated panic attacks, social anxiety disorder (social phobia)—like behavior, and generalized anxiety—like syndromes are common, as are eating disorders. One ex- treme instance of stimulant toxicity is stimulant-induced psychotic disorder, a disorder that resembles schizophrenia, with delusions and hallucinations. Individuals with stimulant use disorder often develop conditioned responses to drug- related stimuli (e.g., craving on seeing any white powderlike substance). These responses contribute to relapse, are difficult to extinguish, and persist after detoxification. Depressive symptoms with suicidal ideation or behavior can occur and are generally the most serious problems seen during stimulant withdrawal. Stimulant use disorder: amphetamine—type stimulants. Estimated 12-month prevalence of amphetamine—type stimulant use disorder in the United States is 0.2% among 12- to 17- year-olds and 0.2% among individuals 18 years and older. Rates are similar among adult males and females (0.2%), but among 12- to 17-year-olds, the rate for females (0.3%) is greater than that for males (0.1%). Intravenous stimulant use has a male-to-female ratio of 3:1 or 4:1, but rates are more balanced among non-injecting users, with males representing 54% of primary treatment admissions. Twelve-month prevalence is greater among 18- to 29-year-olds (0.4%) compared with 45— to 64-year-olds (0.1%). For 12- to 17-year-olds, rates are highest among whites and African Americans (0.3%) compared with Hispanics (0.1%) and Asian Americans and Pacific Islanders (0.01%), with amphetamine-type stimulant use disorder virtually absent among Native Americans. Among adults, rates are highest among Native Americans and Alaska Natives (0.6%) compared with whites (0.2%) and Hispanics (0.2%), with amphetamine-type stimulant use disorder virtually absent among African Americans and Asian Americans and Pacific Islanders. Past-year nonprescribed use of prescription stimulants occurred among 5%—9% of children through high school, with 5%—35% of college-age persons reporting past-year use. Stimulant use disorder: cocaine. Estimated 12-month prevalence of cocaine use disorder in the United States is 0.2% among 12- to 17—year-olds and 0.3% among individuals 18 years and older. Rates are higher among males (0.4%) than among females (0.1%). Rates are highest among 18- to 29-year-olds (0.6%) and lowest among 45- to 64-year-olds (0.1%). Among adults, rates are greater among Native Americans (0.8%) compared with African Ameri- cans (0.4%), Hispanics (0.3%), whites (0.2%), and Asian Americans and Pacific Islanders (0.1%). In contrast, for 12- to 17-year-olds, rates are similar among Hispanics (0.2%), whites (0.2%), and Asian Americans and Pacific Islanders (0.2%); and lower among African Amer- icans (0.02%); with cocaine use disorder virtually absent among Native Americans and Alaska Natives.Stimulant use disorders occur throughout all levels of society and are more common among individuals ages 12—25 years compared with individuals 26 years and older. First regular use among individuals in treatment occurs, on average, at approximately age 23 years. For pri- mary methamphetamine—primary treatment admissions, the average age is 31 years. Some individuals begin stimulant use to control weight or to improve performance in school, work, or athletics. This includes obtaining medications such as methylphenidate or amphetamine salts prescribed to others for the treatment of attention-deficit/hyperac- tivity disorder. Stimulant use disorder can develop rapidly with intravenous or smoked administration; among primary admissions for amphetamine-type stimulant use, 66% re- ported smoking, 18% reported injecting, and 10% reported snorting. Patterns of stimulant administration include episodic or daily (or almost daily) use. Episodic use tends to be separated by 2 or more days of non—use (e.g., intense use over a weekend or on one or more weekdays). "Binges" involve continuous high-dose use over hours or days and are often associated with physical dependence. Binges usually termi- nate only when stimulant supplies are depleted or exhaustion ensues. Chronic daily use may involve high or low doses, often with an increase in dose over time. Stimulant smoking and intravenous use are associated with rapid progression to se- vere-level stimulant use disorder, often occurring over weeks to months. Intranasal use of cocaine and oral use of amphetamine-type stimulants result in more gradual progression occurring over months to years. With continuing use, there is a diminution of pleasurable effects due to tolerance and an increase in dysphoric effects. Temperamental. Comorbid bipolar disorder, schizophrenia, antisocial personality disor- der, and other substance use disorders are risk factors for developing stimulant use disorder and for relapse to cocaine use in treatment samples. Also, impulsivity and similar personality traits may affect treatment outcomes. Childhood conduct disorder and adult antisocial per- sonality disorder are associated with the later development of stimulant—related disorders. Environmental. Predictors of cocaine use among teenagers include prenatal cocaine ex- posure, postnatal cocaine use by parents, and exposure to community Violence during childhood. For youths, especially females, risk factors include living in an unstable home environment, having a psychiatric condition, and associating with dealers and users. Stimulant use—attendant disorders affect all racial / ethnic, socioeconomic, age, and gender groups. Diagnostic issues may be related to societal consequences (e.g., arrest, school sus- pensions, employment suspension). Despite small variations, cocaine and other stimulant use disorder diagnostic criteria perform equally across gender and race/ethnicity groups. Chronic use of cocaine impairs cardiac left ventricular function in African Americans. Approximately 66% of individuals admitted for primary methamphetamine/amphet- amine-related disorders are non-Hispanic white, followed by 21% of Hispanic origin, 3% Asian and Pacific Islander, and 3% non-Hispanic black.Benzoylecgonine, a metabolite of cocaine, typically remains in the urine for 1—3 days after a single dose and may be present for 7—12 days in individuals using repeated high doses. Mildly elevated liver function tests can be present in cocaine injectors or users with con- comitant alcohol use. There are no neurobiological markers of diagnostic utility. Discon- tinuation of chronic cocaine use may be associated with electroencephalographic changes, suggesting persistent abnormalities; alterations in secretion patterns of prolactin; and downregulation of dopamine receptors. Short-half—life amphetamine-type stimulants (MDMA [3,4-methylenedioxy-N-methyl- amphetamine], methamphetamine) can be detected for 1—3 days, and possibly up to 4 days depending on dosage and metabolism. Hair samples can be used to detect presence of am- phetamine~type stimulants for up to 90 days. Other laboratory findings, as well as physical findings and other medical conditions (e.g., weight loss, malnutrition; poor hygiene), are similar for both cocaine and amphetamine-type stimulant use disorder. Functional Consequences of Stimulant Use DisorderVarious medical conditions may occur depending on the route of administration. Intrana- sal users often develop sinusitis, irritation, bleeding of the nasal mucosa, and a perforated nasal septum. Individuals who smoke the drugs are at increased risk for respiratory prob- lems (e.g., coughing, bronchitis, and pneumonitis). Injectors have puncture marks and ”tracks," most commonly on their forearms. Risk of HIV infection increases with frequent intravenous injections and unsafe sexual activity. Other sexually transmitted diseases, hepatitis, and tuberculosis and other lung infections are also seen. Weight loss and mal- nutrition are common. Chest pain may be a common symptom during stimulant intoxication. Myocardial in- farction, palpitations and arrhythmias, sudden death from respiratory or cardiac arrest, and stroke have been associated with stimulant use among young and otherwise healthy individuals. Seizures can occur with stimulant use. Pneumothorax can result from per- forming Valsalva-like maneuvers done to better absorb inhaled smoke. Traumatic injuries due to violent behavior are common among individuals trafficking drugs. Cocaine use is associated with irregularities in placental blood flow, abruptio placentae, premature labor and delivery, and an increased prevalence of infants with very low birth weights. Individuals with stimulant use disorder may become involved in theft, prostitution, or drug dealing in order to acquire drugs or money for drugs. Neurocognitive impairment is common among methamphetamine users. Oral health problems include "meth mouth" with gum disease, tooth decay, and mouth sores related to the toxic effects of smoking the drug and to bruxism while intoxicated. Adverse pulmo- nary effects appear to be less common for amphetamine-type stimulants because they are smoked fewer times per day. Emergency department visits are common for stimulant-re— lated mental disorder symptoms, injury, skin infections, and dental pathology. Primary mental disorders. Stimulant-induced disorders may resemble primary mental disorders (e.g., major depressive disorder) (for discussion of this differential diagnosis, see ”Stimulant Withdrawal"). The mental disturbances resulting from the effects of stimulants should be distinguished from the symptoms of schizophrenia; depressive and bipolar dis- orders; generalized anxiety disorder; and panic disorder. Phencyclidine intoxication. Intoxication with phencyclidine ("PCP” or ”angel dust") or synthetic ”designer drugs” such as mephedrone (known by different names, including ulant intoxication by the presence of cocaine or amphetamine—type substance metabolites in a urine or plasma sample. Stimulant intoxication and withdrawal. Stimulant intoxication and withdrawal are dis- tinguished from the other stimulant-induced disorders (e.g., anxiety disorder, with onset during intoxication) because the symptoms in the latter disorders predominate the clinical presentation and are severe enough to warrant independent clinical attention. Stimulant-related disorders often co-occur with other substance use disorders, especially those involving substances with sedative properties, which are often taken to reduce in- somnia, nervousness, and other unpleasant side effects. Cocaine users often use alcohol, while amphetamine-type stimulant users often use cannabis. Stimulant use disorder may be associated with posttraumatic stress disorder, antisocial personality disorder, atten- tion-deficit/hyperactivity disorder, and gambling disorder. Cardiopulmonary problems are often present in individuals seeking treatment for cocaine-related problems, with chest pain being the most common. Medical problems occur in response to adulterants used as ”cutting” agents. Cocaine users who ingest cocaine cut with levamisole, an antimicrobial and veterinary medication, may experience agranulocytosis and febrile neutropenia. A. Recent use of an amphetamine-type substance. cocaine, or other stimulant. B. Clinically significant problematic behavioral or psychological changes (e.g., euphoria anxiety, tension, or anger; stereotyped behaviors; impaired judgment) that developed during, or shortly after, use of a stimulant. C. Two (or more) of the following signs or symptoms, developing during. or shortly after, stimulant use: Tachycardia or bradycardia.Pupillary dilation.Elevated or lowered blood pressure.Perspiration or chills.Nausea or vomiting.Evidence of weight loss.Psychomotor agitation or retardation.Muscular weakness, respiratory depression, chest pain, or cardiac arrhythmias.Confusion. seizures, dyskinesias, dystonias, or come.D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication with another sub- stance. Specify the specific intoxicant (i.e., amphetamine-type substance, cocaine, or other stimulant). Specify it:With perceptual disturbances: This specifier may be noted when hallucinations with intact reality testing or auditory, visual, or tactile illusions occur in the absence of a de- lirium. Coding note: The |CD-9-CM code is 292.89. The |CD-10-CM code depends on whether the stimulant is an amphetamine, cocaine, or other stimulant; whether there is a comorbid amphetamine, cocaine, or other stimulant use disorder; and whether or not there are per- ceptual disturbances. For amphetamine, cocaine, or other stimulant intoxication, without perceptual dis- turbances: If a mild amphetamine or other stimulant use disorder is comorbid, the ICD- 10-CM code is F15.129, and it a moderate or severe amphetamine or other stimulant use disorder is comorbid, the |CD-10-CM code is F15.229. If there is no comorbid amphet- amine or other stimulant use disorder, then the |CD-10—CM code is F15.929. Similarly, it a mild cocaine use disorder is comorbid. the lCD-10-CM code is F14.129, and it a mod- erate or severe cocaine use disorder is comorbid, the |CD-10-CM code is F14.229. If there is no comorbid cocaine use disorder, then the lCD-10-CM code is F14.929. For amphetamine, cocaine, or other stimulant intoxication, with perceptual distur- bances: If a mild amphetamine or other stimulant use disorder is comorbid, the |CD-10- CM code is F15.122, and if a moderate or severe amphetamine or other stimulant use disorder is comorbid, the |CD-10-CM code is F15.222. If there is no comorbid amphet- amine or other stimulant use disorder, then the lCD-10—CM code is F15.922. Similarly, if a mild cocaine use disorder is comorbid, the |CD-10-CM code is F14.122, and it a mod- erate or severe cocaine use disorder is comorbid, the lCD-10-CM code is F14.222. If there is no comorbid cocaine use disorder, then the |CD-10-CM code is F14.922. The essential feature of stimulant intoxication, related to amphetamine-type stimulants and cocaine, is the presence of clinically significant behavioral or psychological changes that develop during, or shortly after, use of stimulants (Criteria A and B). Auditory hallu— cinations may be prominent, as may paranoid ideation, and these symptoms must be dis- tinguished from an independent psychotic disorder such as schizophrenia. Stimulant intoxication usually begins with a ”high" feeling and includes one or more of the follow- ing: euphoria with enhanced vigor, gregariousness, hyperactivity, restlessness, hypervig- ilance, interpersonal sensitivity, talkativeness, anxiety, tension, alertness, grandiosity, stereotyped and repetitive behavior, anger, impaired judgment, and, in the case of chronic intoxication, affective blunting with fatigue or sadness and social withdrawal. These be- havioral and psychological changes are accompanied by two or more of the following signs and symptoms that develop during or shortly after stimulant use: tachycardia or bra- nausea or vomiting; evidence of weight loss; psychomotor agitation or retardation; mus- cular weakness, respiratory depression, chest pain, or cardiac arrhythmias; and confu- sion, seizures, dyskinesias, dystonias, or coma (Criterion C). Intoxication, either acute or chronic, is often associated with impaired social or occupational functioning. Severe in- toxication can lead to convulsions, cardiac arrhythmias, hyperpyrexia, and death. For the diagnosis of stimulant intoxication to be made, the symptoms must not be attributable rion D). While stimulant intoxication occurs in individuals with stimulant use disorders, in- toxication is not a criterion for stimulant use disorder, which is confirmed by the presence of two of the 11 diagnostic criteria for use disorder. The magnitude and direction of the behavioral and physiological changes depend on many variables, including the dose used and the characteristics of the individual using the sub- stance or the context (e.g., tolerance, rate of absorption, chronicity of use, context in which it is taken). Stimulant effects such as euphoria, increased pulse and blood pressure, and psychomotor activity are most commonly seen. Depressant effects such as sadness, brady- cardia, decreased blood pressure, and decreased psychomotor activity are less common and generally emerge only with chronic high-dose use. Stimulant—induced disorders. Stimulant intoxication is distinguished from the other stimulant-induced disorders (e.g., stimulant-induced depressive disorder, bipolar disor- der, psychotic disorder, anxiety disorder) because the severity of the intoxication symp- toms exceeds that associated with the stimulant-induced disorders, and the symptoms warrant independent clinical attention. Stimulant intoxication delirium would be distin- guished by a disturbance in level of awareness and change in cognition. Other mental disorders. Salient mental disturbances associated with stimulant intoxi- cation should be distinguished from the symptoms of schizophrenia, paranoid type; bi- described 1n DSM- 5. A. Cessation of (or reduction in) prolonged amphetamine-type substance, cocaine, or other stimulant use. B. Dysphoric mood and two (or more) of the following physiological changes, developing within a few hours to several days after Criterion A: Vivid, unpleasant dreams.Insomnia or hypersomnia.Increased appetite.Psychomotor retardation or agitation.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributable to another medical condition and are not better explained by another mental disorder, including intoxication or withdrawal from another substance. Specify the specific substance that causes the withdrawal syndrome (i.e., amphet- amine-type substance, cocaine, or other stimulant). Coding note: The |CD-9-CM code is 292.0. The |CD-10-CM code depends on whether the stimulant is an amphetamine, cocaine, or other stimulant. The |CD-10-CM code for amphetamine or an other stimulant withdrawal is F15.23, and the |CD-10-CM for cocaine withdrawal is F14.23. Note that the |CD-10-CM code indicates the comorbid presence of a moderate or severe amphetamine, cocaine, or other stimulant use disorder, reflecting the fact that amphetamine, cocaine, or other stimulant withdrawal can only occur in the presence of a moderate or severe amphetamine, cocaine, or other stimulant use disorder. It is not permissible to code a comorbid mild amphetamine, cocaine, or other stimulant use disorder with amphetamine, cocaine, or other stimulant withdrawal. The essential feature of stimulant withdrawal is the presence of a characteristic With- drawal syndrome that develops within a few hours to several days after the cessation of terion A). The withdrawal syndrome is characterized by the development of dysphoric mood accompanied by two or more of the following physiological changes: fatigue, vivid and unpleasant dreams, insomnia or hypersomnia, increased appetite, and psychomotor retardation or agitation (Criterion B). Bradycardia is often present and is a reliable mea- sure of stimulant withdrawal. Anhedonia and drug craving can often be present but are not part of the diagnostic cri- teria. These symptoms cause clinically significant distress or impairment in social, occu- pational, or other important areas of functioning (Criterion C). The symptoms must not be attributable to another medical condition and are not better explained by another mental disorder (Criterion D). Acute withdrawal symptoms (”a crash”) are often seen after periods of repetitive high-dose use (”runs” or ”binges”). These periods are characterized by intense and unpleasant feelings of lassitude and depression and increased appetite, generally requiring several days of rest and recuperation. Depressive symptoms with suicidal ideation or behavior can occur and are gen- erally the most serious problems seen during ”crashing” or other forms of stimulant with- drawal. The majority of individuals with stimulant use disorder experience a withdrawal syndrome at some point, and virtually all individuals with the disorder report tolerance. Stimulant use disorder and other stimulant-induced disorders. Stimulant withdrawal is distinguished from stimulant use disorder and from the other stimulant-induced disor- ders (e.g., stimulant-induced intoxication delirium, depressive disorder, bipolar disorder, psychotic disorder, anxiety disorder, sexual dysfunction, sleep disorder) because the symptoms of withdrawal predominate the clinical presentation and are severe enough to warrant independent clinical attention. The following stimulant-induced disorders (which include amphetamine-, cocaine-, and other stimulant—induced disorders) are described in other chapters of the manual with dis— orders with which they share phenomenology (see the substance/medication-induced mental disorders in these chapters): stimulant—induced psychotic disorder (”Schizophrenia ual Dysfunctions”). For stimulant intoxication delirium, see the criteria and discussion of delirium in the chapter "Neurocognitive Disorders.” These stimulant-induced disorders are diagnosed instead of stimulant intoxication or stimulant withdrawal only when the symptoms are sufficiently severe to warrant independent clinical attention. This category applies to presentations in which symptoms characteristic of a stimulant- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific stimulant-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. Coding note: The |CD-9-CM code is 292.9. The |CD-10-CM code depends on whether the stimulant is an amphetamine, cocaine, or another stimulant. The |CD-10-CM code for an unspecified amphetamine- or other stimulant-related disorder is F15.99. The |CD-10- CM code for an unspecified cocaine-related disorder is F14.99.A. A problematic pattern of tobacco use leading to clinically significant impairment or dis- tress, as manifested by at least two of the following, occurring within a 12-month period: 10. Tobacco is often taken in larger amounts or over a longer period than was intended. There is a persistent desire or unsuccessful efforts to cut down or control tobacco use. A great deal of time is spent in activities necessary to obtain or use tobacco. Craving, or a strong desire or urge to use tobacco. Recurrent tobacco use resulting in a failure to fulfill major role obligations at work, school, or home (e.g., interference with work). sonal problems caused or exacerbated by the effects of tobacco (e.g., arguments with others about tobacco use). Important social, occupational, or recreational activities are given up or reduced be- cause of tobacco use. Recurrent tobacco use in situations in which it is physically hazardous (e.g., smok- ing in bed). Tobacco use is continued despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by tobacco. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of tobacco to achieve the desired effect. b. A markedly diminished effect with continued use of the same amount of tobacco. Withdrawal, as manifested by either of the following: a. The characteristic withdrawal syndrome for tobacco (refer to Criteria A and B of the criteria set for tobacco withdrawal). b. Tobacco (or a closely related substance, such as nicotine) is taken to relieve or avoid withdrawal symptoms. Specify it:In early remission: After lull criteria for tobacco use disorder were previously met, none of the criteria for tobacco use disorder have been met for at least 3 months but for less than 12 months (with the exception that Criterion A4, "Craving, or a strong de- sire or urge to use tobacco,” may be met). In sustained remission: After full criteria for tobacco use disorder were previously met, none of the criteria for tobacco use disorder have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong desire or urge to use tobacco," may be met). Specify if:On maintenance therapy: The individual is taking a long-term maintenance medica- tion, such as nicotine replacement medication, and no criteria for tobacco use disorder have been met for that class of medication (except tolerance to, or withdrawal from, the nicotine replacement medication). In a controlled environment: This additional specifier is used if the individual is in an environment where access to tobacco is restricted. Coding based on current severity: Note for lCD-10-CM codes: If a tobacco withdrawal or tobacco-induced sleep disorder is also present, do not use the codes below for tobacco use disorder. Instead, the comorbid tobacco use disorder is indicated in the 4th character of the tobacco-induced disorder code (see the coding note for tobacco withdrawal or tobacco- induced sleep disorder). For example, if there is comorbid tobacco-induced sleep disorder and tobacco use disorder, only the tobacco—induced sleep disorder code is given, with the 4th char- acter indicating whether the comorbid tobacco use disorder is moderate or severe: F17.208 for moderate or severe tobacco use disorder with tobacco-induced sleep disorder. It is not per— missible to code a comorbid mild tobacco use disorder with a tobacco-induced sleep disorder. Specify current severity: 305.1 (272.0) Mild: Presence of 2—3 symptoms. 305.1 (F17.200) Moderate: Presence of 4—5 symptoms.305.1 (F17.200) Severe: Presence of 6 or more symptoms."On maintenance therapy" applies as a further specifier to individuals being maintained on other tobacco cessation medication (e.g., bupropion, varenicline) and as a further specifier of remission if the individual is both in remission and on maintenance therapy. ”In a controlled environment” applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sus- tained remission in a controlled environment). Examples of these environments are closely su- pervised and substance-free jails, therapeutic communities, and locked hospital units. Tobacco use disorder is common among individuals who use cigarettes and smokeless to- bacco daily and is uncommon among individuals who do not use tobacco daily or who use nicotine medications. Tolerance to tobacco is exemplified by the disappearance of nausea and dizziness after repeated intake and with a more intense effect of tobacco the first time it is used during the day. Cessation of tobacco use can produce a well-defined withdrawal syndrome. Many individuals with tobacco use disorder use tobacco to relieve or to avoid withdrawal symptoms (e.g., after being in a situation where use is restricted). Many indi- tinue to smoke. The large majority report craving when they do not smoke for several hours. Spending excessive time using tobacco can be exemplified by chain-smoking (i.e., smok- ing one cigarette after another with no time between cigarettes). Because tobacco sources are readily and legally available, and because nicotine intoxication is very rare, spending a great deal of time attempting to procure tobacco or recovering from its effects is uncom- mon. Giving up important social, occupational, or recreational activities can occur when an individual forgoes an activity because it occurs in tobacco use—restricted areas. Use of tobacco rarely results in failure to fulfill major role obligations (e.g., interference with work, interference with home obligations), but persistent social or interpersonal problems (e.g., having arguments with others about tobacco use, avoiding social situations because of others’ disapproval of tobacco use) or use that is physically hazardous (e.g., smoking in bed, smoking around flammable chemicals) occur at an intermediate prevalence. Although these criteria are less often endorsed by tobacco users, if endorsed, they can indicate a more severe disorder. Smoking within 30 minutes of waking, smoking daily, smoking more cigarettes per day, and waking at night to smoke are associated with tobacco use disorder. Environmental cues can evoke craving and withdrawal. Serious medical conditions, such as lung and other cancers, cardiac and pulmonary disease, perinatal problems, cough, shortness of breath, and accelerated skin aging, often occur. Cigarettes are the most commonly used tobacco product, representing over 90% of to- bacco/nicotine use. In the United States, 57% of adults have never been smokers, 22% are former smokers, and 21% are current smokers. Approximately 20% of current US. smok- ers are nondaily smokers. The prevalence of smokeless tobacco use is less than 5%, and the prevalence of tobacco use in pipes and cigars is less than 1%. DSM-IV nicotine dependence criteria can be used to estimate the prevalence of tobacco use disorder, but since they are a subset of tobacco use disorder criteria, the prevalence of tobacco use disorder will be somewhat greater. The 12-month prevalence of DSM-IV nic- otine dependence in the United States is 13% among adults age 18 years and older. Rates among 18— to 29-year-olds to 4% among individuals age 65 years and older. The prevalence of current nicotine dependence is greater among Native American and Alaska Natives (23%) than among whites (14%) but is less among African Americans (10%), Asian Amer- icans and Pacific Islanders (6%), and Hispanics (6%). The prevalence among current daily smokers is approximately 50%. In many developing nations, the prevalence of smoking is much greater in males than in females, but this is not the case in developed nations. However, there often is a lag in the demographic transition such that smoking increases in females at a later time. The majority of US. adolescents experiment with tobacco use, and by age 18 years, about 20% smoke at least monthly. Most of these individuals become daily tobacco users. Initi- ation of smoking after age 21 years is rare. In general, some of the tobacco use disorder cri- teria symptoms occur soon after beginning tobacco use, and many individuals’ pattern of use meets current tobacco use disorder criteria by late adolescence. More than 80% of in- dividuals who use tobacco attempt to quit at some time, but 60% relapse within 1 week and less than 5% remain abstinent for life. However, most individuals who use tobacco make multiple attempts such that one-half of tobacco users eventually abstain. Individuals who use tobacco who do quit usually do not do so until after age 30 years. Although non- daily smoking in the United States was previously rare, it has become more prevalent in the last decade, especially among younger individuals who use tobacco. Temperamental. Individuals with externalizing personality traits are more likely to initiate tobacco use. Children with attention-deficit/hyperactivity disorder or conduct disorder, and adults with depressive, bipolar, anxiety, personality, psychotic, or other substance use disorders, are at higher risk of starting and continuing tobacco use and of to- bacco use disorder. Environmental. Individuals with low incomes and low educational levels are more likely to initiate tobacco use and are less likely to stop. Genetic and physiological. Genetic factors contribute to the onset of tobacco use, the continuation of tobacco use, and the development of tobacco use disorder, with a degree of heritability equivalent to that observed with other substance use disorders (i.e., about 50%). Some of this risk is specific to tobacco, and some is common with the vulnerability to developing any substance use disorder. Cultures and subcultures vary widely in their acceptance of the use of tobacco. The prev- alence of tobacco use declined in the United States from the 19605 through the 19905, but this decrease has been less evident in African American and Hispanic populations. Also, smoking in developing countries is more prevalent than in developed nations. The degree to which these cultural differences are due to income, education, and tobacco control ac— tivities in a country is unclear. Non-Hispanic white smokers appear to be more likely to develop tobacco use disorder than are smokers. Some ethnic differences may be biologi- cally based. African American males tend to have higher nicotine blood levels for a given number of cigarettes, and this might contribute to greater difficulty in quitting. Also, the speed of nicotine metabolism is significantly different for whites compared with African Americans and can vary by genotypes associated with ethnicities.Carbon monoxide in the breath, and nicotine and its metabolite cotinine in blood, saliva, or urine, can be used to measure the extent of current tobacco or nicotine use; however, these are only weakly related to tobacco use disorder. Functional Consequences of Tobacco Use DisorderMedical consequences of tobacco use often begin when tobacco users are in their 405 and usually become progressively more debilitating over time. One-half of smokers who do not stop using tobacco will die early from a tobacco-related illness, and smoking-related morbidity occurs in more than one-half of tobacco users. Most medical conditions result from exposure to carbon monoxide, tars, and other non-nicotine components of tobacco. The major predictor of reversibility is duration of smoking. Secondhand smoke increases the risk of heart disease and cancer by 30%. Long-term use of nicotine medications does not appear to cause medical harm. The most common medical diseases from smoking are cardiovascular illnesses, chronic obstructive pulmonary disease, and cancers. Smoking also increases perinatal problems, such as low birth weight and miscarriage. The most common psychiatric comorbidities are alcohol/substance, depressive, bipolar, anxiety, personality, and attention-deficit/hyper- activity disorders. In individuals with current tobacco use disorder, the prevalence of cur- rent alcohol, drug, anxiety, depressive, bipolar, and personality disorders ranges from 22% to 32%. Nicotine-dependent smokers are 2.7—8.1 times more likely to have these dis- orders than nondependent smokers, never-smokers, or ex-smokers. . Tobacco WithdrawalDiagnostic Criteria 292.0 (F17.203)A. Daily use of tobacco for at least several weeks. B. Abrupt cessation of tobacco use, or reduction in the amount of tobacco used, followed within 24 hours by four (or more) of the following signs or symptoms: Irritability, frustration, or anger.Difficulty concentrating.Increased appetite.Depressed mood.C. The signs or symptoms in Criterion B cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The signs or symptoms are not attributed to another medical condition and are not bet- ter explained by another mental disorder, including intoxication or withdrawal from an- other substance. Coding note: The ICD-9-CM code is 292.0. The lCD-10-CM code for tobacco withdrawal is F17.203. Note that the |CD-10-CM code indicates the comorbid presence of a moderate or severe tobacco use disorder, reflecting the fact that tobacco withdrawal can only occur in the presence of a moderate or severe tobacco use disorder. It is not permissible to code a comorbid mild tobacco use disorder with tobacco withdrawal. Withdrawal symptoms impair the ability to stop tobacco use. The symptoms after absti- nence from tobacco are in large part due to nicotine deprivation. Symptoms are much among those who use nicotine medications. This difference in symptom intensity is likely due to the more rapid onset and higher levels of nicotine with cigarette smoking. Tobacco withdrawal is common among daily tobacco users who stop or reduce but can also occur among nondaily users. Typically, heart rate decreases by 5—12 beats per minute in the first few days after stopping smoking, and weight increases an average of 4—7 1b (2—3 kg) over the first year after stopping smoking. Tobacco withdrawal can produce clinically signifi- cant mood changes and functional impairment. are associated with tobacco withdrawal. Abstinence can increase constipation, coughing, dizziness, dreaming/nightmares, nausea, and sore throat. Smoking increases the metab— olism of many medications used to treat mental disorders; thus, cessation of smoking can increase the blood levels of these medications, and this can produce clinically significant outcomes. This effect appears to be due not to nicotine but rather to other compounds in tobacco. Approximately 50% of tobacco users who quit for 2 or more days will have symptoms that meet criteria for tobacco withdrawal. The most commonly endorsed signs and symptoms are anxiety, irritability, and difficulty concentrating. The least commonly endorsed symp- toms are depression and insomnia. Tobacco withdrawal usually begins within 24 hours of stopping or cutting down on to- bacco use, peaks at 2—3 days after abstinence, and lasts 2—3 weeks. Tobacco withdrawal symptoms can occur among adolescent tobacco users, even prior to daily tobacco use. Pro- longed symptoms beyond 1 month are uncommon. Temperamental. Smokers with depressive disorders, bipolar disorders, anxiety disor- ders, attention-deficit/hyperactivity disorder, and other substance use disorders have more severe withdrawal. Genetic and physiological. Genotype can influence the probability of withdrawal upon abstinence. Carbon monoxide in the breath, and nicotine and its metabolite cotinine in blood, saliva, or urine, can be used to measure the extent of tobacco or nicotine use but are only weakly re- lated to tobacco withdrawal. Functional Consequences of Tobacco WithdrawalAbstinence from cigarettes can cause clinically significant distress. Withdrawal impairs the ability to stop or control tobacco use. Whether tobacco withdrawal can prompt a new mental disorder or recurrence of a mental disorder is debatable, but if this occurs, it would be in a small minority of tobacco users. The symptoms of tobacco withdrawal overlap with those of other substance withdrawal syndromes (e.g., alcohol withdrawal; sedative, hypnotic, or anxiolytic withdrawal; stim- ulant withdrawal; caffeine withdrawal; opioid withdrawal); caffeine intoxication; anxiety, depressive, bipolar, and sleep disorders; and medication-induced akathisia. Admission to toms that mimic, intensify, or disguise other disorders or adverse effects of medications used to treat mental disorders (e.g., irritability thought to be due to alcohol withdrawal could be due to tobacco withdrawal). Reduction in symptoms with the use of nicotine medications confirms the diagnosis. Tobacco-induced sleep disorder is discussed in the chapter ”Sleep-Wake Disorders” (see “Substance/ Medication-Induced Sleep Disorder”). 292.9 (F17.209)This category applies to presentations in which symptoms characteristic of a tobacco- related disorder that cause clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning predominate but do not meet the full criteria for any specific tobacco-related disorder or any of the disorders in the substance-related and addictive disorders diagnostic class. A. A problematic pattern of use of an intoxicating substance not able to be classified within the alcohol; caffeine; cannabis; hallucinogen (phencyclidine and others); inhal- ant; opioid; sedative, hypnotic, or anxiolytic; stimulant; ortobacco categories and lead- ing to clinically significant impairment or distress, as manifested by at least two of the following, occurring within a 12-month period: 1. The substance is often taken in larger amounts or over a longer period than was intended. There is a persistent desire or unsuccessful efforts to cut down or control use of the substance. A great deal of time is spent in activities necessary to obtain the substance, use the substance, or recover from its effects. Craving, or a strong desire or urge to use the substance. Recurrent use of the substance resulting in a failure to fulfill major role obligations at work, school, or home. Continued use of the substance despite having persistent or recurrent social or in- terpersonal problems caused or exacerbated by the effects of its use. Important social, occupational, or recreational activities are given up or reduced be- cause of use of the substance. Recurrent use of the substance in situations in which it is physically hazardous. Use of the substance is continued despite knowledge of having a persistent or re- current physical or psychological problem that is likely to have been caused or ex- acerbated by the substance. 10. Tolerance, as defined by either of the following: a. A need for markedly increased amounts of the substance to achieve intoxication or desired effect. b. A markedly diminished el'lect with continued use of the same amount of the sub- stance. 11. Withdrawal, as manifested by either of the following: a. The characteristic withdrawal syndrome for other (or unknown) substance (refer to Criteria A and B of the criteria sets for other [or unknown] substance withdrawal, p. 583). b. The substance (or a closely related substance) is taken to relieve or avoid with- drawal symptoms. Specify if:In early remission: Afterfull criteria for other (or unknown) substance use disorder were previously met, none of the criteria for other (or unknown) substance use disorder have been met for at least 3 months but for less than 12 months (with the exception that Cri- terion A4, “Craving, or a strong desire or urge to use the substance," may be met). In sustained remission: After full criteria for other (or unknown) substance use disor- der were previously met, none of the criteria for other (or unknown) substance use dis- order have been met at any time during a period of 12 months or longer (with the exception that Criterion A4, “Craving, or a strong desire or urge to use the substance," may be met). Specify if:In a controlled environment: This additional specifier is used if the individual is in an environment where access to the substance is restricted. Coding based on current severity: Note for |CD-10-CM codes: If an other (or unknown) sub- stance intoxication, other (or unknown) substance withdrawal, or another other (or unknown) substance—induced mental disorder is present, do not use the codes below for other (or un- known) substance use disorder. Instead, the comorbid other (or unknown) substance use dis- order is indicated in the 4th character of the other (or unknown) substance—induced disorder code (see the coding note for other (or unknown) substance intoxication, other (or unknown) substance withdrawal, or specific other (or unknown) substance—induced mental disorder). For example, it there is comorbid other (or unknown) substance—induced depressive disorder and other (or unknown) substance use disorder, only the other (or unknown) substance— induced depressive disorder code is given, with the 4th character indicating whether the co- morbid other (or unknown) substance use disorder is mild, moderate, or severe: F19.14 for other (or unknown) substance use disorder with other (or unknown) substance—induced de- order with other (or unknown) substance—induced depressive disorder. Specify current severity: 305.90 (F19.10) Mild: Presence of 2—3 symptoms. 304.90 (F19.20) Moderate: Presence of 4—5 symptoms.304.90 (F19.20) Severe: Presence of 6 or more symptoms.“In a controlled environment” applies as a further specifier of remission if the individual is both in remission and in a controlled environment (i.e., in early remission in a controlled environment or in sustained remission in a controlled environment). Examples of these environments are closely supervised and substance-free jails, therapeutic communities, and locked hospital units. The diagnostic class other (or unknown) substance use and related disorders comprises substance-related disorders unrelated to alcohol; caffeine; cannabis; hallucinogens (phen- cyclidine and others); inhalants; opioids; sedative, hypnotics, or anxiolytics; stimulants (including amphetamine and cocaine); or tobacco. Such substances include anabolic ste- tihistamines; nitrous oxide; amyl-, butyl-, or isobutyl-nitrites; betel nut, which is chewed in many cultures to produce mild euphoria and a floating sensation; kava (from a South Pacific pepper plant), which produces sedation, incoordination, weight loss, mild hepati- tis, and lung abnormalities; or cathinones (including khfit plant agents and synthetic chem- ical derivatives) that produce stimulant effects. Unknown substance-related disorders are associated with unidentified substances, such as intoxications in which the individual can- not identify the ingested drug, or substance use disorders involving either new, black mar- ket drugs not yet identified or familiar drugs illegally sold under false names. Other (or unknown) substance use disorder is a mental disorder in which repeated use of an other or unknown substance typically continues, despite the individual’s knowing that the substance is causing serious problems for the individual. Those problems are re- flected in the diagnostic criteria. When the substance is known, it should be reflected in the name of the disorder upon coding (e.g., nitrous oxide use disorder). A diagnosis of other (or unknown) substance use disorder is supported by the individual’s statement that the substance involved is not among the nine classes listed in this chapter; by re- curring episodes of intoxication with negative results in standard drug screens (which may not detect new or rarely used substances); or by the presence of symptoms characteristic of an un- identified substance that has newly appeared in the individual’s community. Because of increased access to nitrous oxide (”laughing gas"), membership in certain populations is associated with diagnosis of nitrous oxide use disorder. The role of this gas as an anesthetic agent leads to misuse by some medical and dental professionals. Its use as a propellant for commercial products (e.g., whipped cream dispensers) contributes to misuse by food service workers. With recent widespread availability of the substance in ”Whippet” cartridges for use in home whipped cream dispensers, nitrous oxide misuse by adolescents and young adults is significant, especially among those who also inhale vola- tile hydrocarbons. Some continuously using individuals, inhaling from as many as 240 whippets per day, may present with serious medical complications and mental conditions, including myeloneuropathy, spinal cord subacute combined degeneration, peripheral neuropathy, and psychosis. These conditions are also associated with a diagnosis of ni- trous oxide use disorder. Use of amyl-, butyl-, and isobutyl nitrite gases has been observed among homosexual men and some adolescents, especially those with conduct disorder. Membership in these populations may be associated with a diagnosis of amy1—, butyl-, or isobutyl—nitrite use dis- order. However, it has not been determined that these substances produce a substance use disorder. Despite tolerance, these gases may not alter behavior through central effects, and they may be used only for their peripheral effects. Substance use disorders generally are associated with elevated risks of suicide, but there is no evidence of unique risk factors for suicide with other (or unknown) substance use disorder. Based on extremely limited data, the prevalence of other (or unknown) substance use disorder is likely lower than that of use disorders involving the nine substance classes in this chapter. No single pattern of development or course characterizes the pharmacologically varied other (or unknown) substance use disorders. Often unknown substance use disorders will be reclassified when the unknown substance eventually is identified. Risk and prognostic factors for other (or unknown) substance use disorders are thought to be similar to those for most substance use disorders and include the presence of any other substance use disorders, conduct disorder, or antisocial personality disorder in the indi- vidual or the individual’s family; early onset of substance problems; easy availability of the substance in the individual’s environment; childhood maltreatment or trauma; and ev- idence of limited early self—control and behavioral disinhibition. Certain cultures may be associated with other (or unknown) substance use disorders in- volving specific indigenous substances within the cultural region, such as betel nut. Urine, breath, or saliva tests may correctly identify a commonly used substance falsely sold as a novel product. However, routine clinical tests usually cannot identify truly un- usual or new substances, which may require testing in specialized laboratories. Use of other or unknown substances without meeting criteria for other (or unknown) substance use disorder. Use of unknown substances is not rare among adolescents, but most use does not meet the diagnostic standard of two or more criteria for other (or un- known) substance use disorder in the past year. Substance use disorders. Other (or unknown) substance use disorder may co—occur with various substance use disorders, and the symptoms of the disorders may be similar and overlapping. To disentangle symptom patterns, it is helpful to inquire about which symptoms persisted during periods when some of the substances were not being used. Other (or unknown) substance/medication-induced disorder. This diagnosis should be differentiated from instances when the individual’s symptoms meet full criteria for one of the following disorders, and that disorder is caused by an other or unknown substance: delirium, major or mild neurocognitive disorder, psychotic disorder, depressive disorder, anxiety disorder, sexual dysfunction, or sleep disorder. Other medical conditions. Individuals with substance use disorders, including other (or unknown) substance use disorder, may present with symptoms of many medical dis- orders. These disorders also may occur in the absence of other (or unknown) substance use disorder. A history of little or no use of other or unknown substances helps to exclude other (or unknown) substance use disorder as the source of these problems. Substance use disorders, including other (or unknown) substance use disorder, are com- monly comorbid with one another, with adolescent conduct disorder and adult antisocial personality disorder, and with suicidal ideation and suicide attempts. A. The development of a reversible substance-specific syndrome attributable to recent in- gestion of (or exposure to) a substance that is not listed elsewhere or is unknown. B. Clinically significant problematic behavioral or psychological changes that are attribut- able to the effect of the substance on the central nervous system (e.g., impaired motor coordination, psychomotor agitation or retardation, euphoria. anxiety, belligerence, mood lability, cognitive impairment, impaired judgment, social withdrawal) and develop during, or shortly after, use of the substance. C. The signs or symptoms are not attributable to another medical condition and are not bet- ter explained by another mental disorder, including intoxication with another substance. Coding note: The lCD-9-CM code is 292.89. The lCD-10-CM code depends on whether there is a comorbid other (or unknown) substance use disorder involving the same sub- stance. If a mild other (or unknown) substance use disorder is comorbid, the |CD-10-CM code is F19.129, and it a moderate or severe other (or unknown) substance use disorder is comorbid, the |CD-10-CM code is F19.229. If there is no comorbid other (or unknown) sub- stance use disorder involving the same substance, then the ICD-10-CM code is F19.929. Note: For information on Risk and Prognostic Factors, Culture-Related Diagnostic Issues, and Diagnostic Markers, see the corresponding sections in other (or unknown) substance use disorder. Other (or unknown) substance intoxication is a clinically significant mental disorder that develops during, or immediately after, use of either a) a substance not elsewhere ad- dressed in this chapter (i.e., alcohol; caffeine; cannabis; phencyclidine and other halluci- nogens; inhalants; opioids; sedatives, hypnotics, or anxiolytics; stimulants; or tobacco) or b) an unknown substance. If the substance is known, it should be reflected in the name of the disorder upon coding. Application of the diagnostic criteria for other (or unknown) substance intoxication is very challenging. Criterion A requires development of a reversible “substance-specific syndrome," but if the substance is unknown, that syndrome usually will be unknown. To resolve this conflict, clinicians may ask the individual or obtain collateral history as to whether the individual has experienced a similar episode after using substances with the same ”street” name or from the same source. Similarly, hospital emergency departments sometimes recognize over a few days numerous presentations of a severe, unfamiliar in- toxication syndrome from a newly available, previously unknown substance. Because of the great variety of intoxicating substances, Criterion B can provide only broad examples of signs and symptoms from some intoxications, with no threshold for the number of symptoms required for a diagnosis; clinical judgment guides those decisions. Criterion C requires ruling out other medical conditions, mental disorders, 01' intoxications. The prevalence of other (or unknown) substance intoxication is unknown. Intoxications usually appear and then peak minutes to hours after use of the substance, but the onset and course vary with the substance and the route of administration. Generally, substances used by pulmonary inhalation and intravenous injection have the most rapid onset of action, while those ingested by mouth and requiring metabolism to an active product are much slower. (For example, after ingestion of certain mushrooms, the first signs of an eventually fatal intoxication may not appear for a few days.) Intoxication ef- fects usually resolve within hours to a very few days. However, the body may completely eliminate an anesthetic gas such as nitrous oxide just minutes after use ends. At the other extreme, some ”hit-and-run" intoxicating substances poison systems, leaving permanent impairments. For example, MPTP (1-methy1—4-phenyl-1,2,3,6-tetrahydropyridine), a con- taminating by-product in the synthesis of a certain opioid, kills dopaminergic cells and in- duces permanent parkinsonism in users who sought opioid intoxication. Impairment from intoxication with any substance may have serious consequences, includ- ing dysfunction at work, social indiscretions, problems in interpersonal relationships, fail- ure to fulfill role obligations, traffic accidents, fighting, high-risk behaviors (i.e., having unprotected sex), and substance or medication overdose. The pattern of consequences will vary with the particular substance. Use of other or unknown substance, without meeting criteria for other (or unknown) substance intoxication. The individual used an other or unknown substance(s), but the dose was insufficient to produce symptoms that meet the diagnostic criteria required for the diagnosis. Substance intoxication or other substance/medication-induced disorders. Familiar sub- stances may be sold in the black market as novel products, and individuals may experience intoxication from those substances. History, toxicology screens, or chemical testing of the substance itself may help to identify it. Different types of other (or unknown) substance—related disorders. Episodes of other (or unknown) substance intoxication may occur during, but are distinct from, other (or un- known) substance use disorder, unspecified other (or unknown) substance—related disor- der, and other (or unknown) substance—induced disorders. Other toxic, metabolic, traumatic, neoplastic, vascular, or infectious disorders that impair brain function and cognition. Numerous neurological and other medical conditions may produce rapid onset of signs and symptoms mimicking those of intoxications, including the examples in Criterion B. Paradoxically, drug withdrawals also must be ruled out, because, for example, lethargy may indicate withdrawal from one drug or intoxication with another drug. As with all substance-related disorders, adolescent conduct disorder, adult antisocial per- sonality disorder, and other substance use disorders tend to co-occur with other (or un- known) substance intoxication. Diagnostic Criteria 292.0 (F19.239)A. Cessation of (or reduction in) use of a substance that has been heavy and prolonged. B. The development of a substance-specific syndrome shortly after the cessation of (or reduction in) substance use. C. The substance-specific syndrome causes clinically significant distress or impairment in social, occupational, or other important areas of functioning. D. The symptoms are not attributable to another medical condition and are not better ex- plained by another mental disorder, including withdrawal from another substance. E. The substance involved cannot be classified under any of the other substance catego- ries (alcohol; caffeine; cannabis; opioids; sedatives, hypnotics, or anxiolytics; stimu- lants; or tobacco) or is unknown. Coding note: The ICD-9-CM code is 292.0. The |CD-10-CM code for other (or unknown) sub- stance withdrawal is F19.239. Note that the |CD-10-CM code indicates the comorbid presence of a moderate or severe other (or unknown) substance use disorder. It is not permissible to code a comorbid mild other (or unknown) substance use disorder with other (or unknown) sub- stance withdrawal. Note: For information on Risk and Prognostic Factors and Diagnostic Markers, see the cor- responding sections in other (or unknown) substance use disorder. Other (or unknown) substance withdrawal is a clinically significant mental disorder that develops during, or within a few hours to days after, reducing or terminating dosing with a substance (Criteria A and B). Although recent dose reduction or termination usually is clear in the history, other diagnostic procedures are very challenging if the drug is un- known. Criterion B requires development of a "substance-specific syndrome” (i.e., the in- dividual’s signs and symptoms must correspond with the known withdrawal syndrome for the recently stopped drug)—a requirement that rarely can be met with an unknown substance. Consequently, clinical judgment must guide such decisions when information is this limited. Criterion D requires ruling out other medical conditions, mental disorders, or withdrawals from familiar substances. When the substance is known, it should be re- flected in the name of the disorder upon coding (e.g., betel nut withdrawal). The prevalence of other (or unknown) substance withdrawal is unknown. Withdrawal signs commonly appear some hours after use of the substance is terminated, but the onset and course vary greatly, depending on the dose typically used by the person and the rate of elimination of the specific substance from the body. At peak severity, with- drawal symptoms from some substances involve only moderate levels of discomfort, whereas withdrawal from other substances may be fatal. Withdrawal-associated dyspho- ria often motivates relapse to substance use. Withdrawal symptoms slowly abate over days, weeks, or months, depending on the particular drug and doses to which the indi- vidual became tolerant. Culture-related issues in diagnosis will vary with the particular substance. Withdrawal from any substance may have serious consequences, including physical signs and symptoms (e.g., malaise, vital sign changes, abdominal distress, headache), intense drug craving, anxiety, depression, agitation, psychotic symptoms, or cognitive impairments. These consequences may lead to problems such as dysfunction at work, problems in in- terpersonal relationships, failure to fulfill role obligations, traffic accidents, fighting, high- risk behavior (e.g., having unprotected sex), suicide attempts, and substance or medica- tion overdose. The pattern of consequences will vary with the particular substance. Dose reduction after extended dosing, but not meeting the criteria for other (or un- known) substance withdrawal. The individual used other (or unknown) substances, but the dose that was used was insufficient to produce symptoms that meet the criteria re- quired for the diagnosis. Substance withdrawal or other substance/medication-induced disorders. Familiar substances may be sold in the black market as novel products, and individuals may expe- rience withdrawal when discontinuing those substances. History, toxicology screens, or chemical testing of the substance itself may help to identify it. Different types of other (or unknown) substance—related disorders. Episodes of other (or unknown) substance withdrawal may occur during, but are distinct from, other (or un- known) substance use disorder, unspecified other (or unknown) substance—related disor- der, and unspecified other (or unknown) substance—induced disorders. Other toxic, metabolic, traumatic, neoplastic, vascular, or infectious disorders that im- pair brain function and cognition. Numerous neurological and other medical condi- tions may produce rapid onset of signs and symptoms mimicking those of withdrawals. Paradoxically, drug intoxications also must be ruled out, because, for example, lethargy may indicate withdrawal from one drug or intoxication with another drug. As with all substance-related disorders, adolescent conduct disorder, adult antisocial per- sonality disorder, and other substance use disorders likely co-occur with other (or un- known) substance withdrawal. Because the category of other or unknown substances is inherently ill-defined, the extent and range of induced disorders are uncertain. Nevertheless, other (or unknown) sub- stance—induced disorders are possible and are described in other chapters of the manual with disorders with which they share phenomenology (see the substance/medication- induced mental disorders in these chapters): other (or unknown) substance—induced psy- rocognitive disorder (”Neurocognitive Disorders”). For other (or unknown) substance— delirium, see the criteria and discussion of delirium in the chapter "Neurocognitive Dis- orders.” These other (or unknown) substance—induced disorders are diagnosed instead of only when the symptoms are sufficiently severe to warrant independent clinical attention. 292.9 (F19.99)This category applies to presentations in which symptoms characteristic of an other (or un- in social, occupational, or other important areas at functioning predominate but do not meet the full criteria for any specific other (or unknown) substance—related disorder or any of the disorders in the substance—related disorders diagnostic class. Diagnostic Criteria 312.31 (F63.0)A. Persistent and recurrent problematic gambling behavior leading to clinically significant impairment or distress, as indicated by the individual exhibiting tour (or more) of the fol- lowing in a 12-month period: 1. Needs to gamble with increasing amounts of money in order to achieve the desired excitement. 2. Is restless or irritable when attempting to cut down or stop gambling. 3. Has made repeated unsuccessful efforts to control, cut back, or stop gambling. 4. Is often preoccupied with gambling (e.g., having persistent thoughts of reliving past gambling experiences, handicapping or planning the next venture, thinking of ways to get money with which to gamble). 5. Often gambles when feeling distressed (e.g., helpless, guilty, anxious, depressed). 6. After losing money gambling, often returns another day to get even ("chasing" one‘s losses). 7. Lies to conceal the extent of involvement with gambling. 8. Has jeopardized or lost a significant relationship, job. or educational or career op- portunity because of gambling. 9. Relies on others to provide money to relieve desperate financial situations caused by gambling. B. The gambling behavior is not better explained by a manic episode. Specify if:Episodic: Meeting diagnostic criteria at more than one time point, with symptoms sub- siding between periods of gambling disorder for at least several months. Perslstent: Experiencing continuous symptoms, to meet diagnostic criteria for multiple years. Specify if:In early remission: After tull criteria for gambling disorder were previously met, none of the criteria for gambling disorder have been met for at least 3 months but for less than 12 months. In sustained remission: After full criteria for gambling disorder were previously met, none of the criteria for gambling disorder have been met during a period of 12 months or longer. Specify current severity:Mlld: 4—5 criteria met.Moderate: 6—7 criteria met.Severe: 8—9 criteria met.Note: Although some behavioral conditions that do not involve ingestion of substances have similarities to substance-related disorders, only one disorder—gambling disorder— has sufficient data to be included in this section. Severity is based on the number of criteria endorsed. Individuals with mild gambling dis- order may exhibit only 4—5 of the criteria, with the most frequently endorsed criteria usu- ally related to preoccupation with gambling and "chasing" losses. Individuals with moderately severe gambling disorder exhibit more of the criteria (i.e., 6—7). Individuals with the most severe form will exhibit all or most of the nine criteria (i.e., 8—9). Ieopardiz- ing relationships or career opportunities due to gambling and relying on others to provide money for gambling losses are typically the least often endorsed criteria and most often oc- cur among those with more severe gambling disorder. Furthermore, individuals present- ing for treatment of gambling disorder typically have moderate to severe forms of the disorder. Gambling involves risking something of value in the hopes of obtaining something of greater value. In many cultures, individuals gamble on games and events, and most do so without experiencing problems. However, some individuals develop substantial impair- ment related to their gambling behaviors. The essential feature of gambling disorder is persistent and recurrent maladaptive gambling behavior that disrupts personal, family, and / or vocational pursuits (Criterion A). Gambling disorder is defined as a cluster of four or more of the symptoms listed in Criterion A occurring at any time in the same 12-month period. A pattern of ”chasing one’s losses” may develop, with an urgent need to keep gam- bling (often with the placing of larger bets or the taking of greater risks) to undo a loss or series of losses. The individual may abandon his or her gambling strategy and try to win back losses all at once. Although many gamblers may ”chase” for short periods of time, it is the frequent, and often long-term, ”chase” that is characteristic of gambling disorder (Criterion A6). Individuals may lie to family members, therapists, or others to conceal the extent of involvement with gambling; these instances of deceit may also include, but are not limited to, covering up illegal behaviors such as forgery, fraud, theft, or embez- zlement to obtain money with which to gamble (Criterion A7). Individuals may also en- gage in “bailout” behavior, turning to family or others for help with a desperate financial situation that was caused by gambling (Criterion A9). Distortions in thinking (e.g., denial, superstitions, a sense of power and control over the outcome of chance events, overconfidence) may be present in individuals with gambling disorder. Many individuals with gambling disorder believe that money is both the cause of and the solution to their problems. Some individuals with gambling disorder are im- pulsive, competitive, energetic, restless, and easily bored; they may be overly concerned with the approval of others and may be generous to the point of extravagance when win- ning. Other individuals with gambling disorder are depressed and lonely, and they may gamble when feeling helpless, guilty, or depressed. Up to half of individuals in treatment for gambling disorder have suicidal ideation, and about 17% have attempted suicide. The past-year prevalence rate of gambling disorder is about 0.2%—0.3% in the general pop- ulation. In the general population, the lifetime prevalence rate is about 0.4%—1.0%. For fe- males, the lifetime prevalence rate of gambling disorder is about 0.2%, and for males it is about 0.6%. The lifetime prevalence of pathological gambling among African Americans is about 0.9%, among whites about 0.4%, and among Hispanics about 0.3%. The onset of gambling disorder can occur during adolescence or young adulthood, but in other individuals it manifests during middle or even older adulthood. Generally, gam- bling disorder develops over the course of years, although the progression appears to be more rapid in females than in males. Most individuals who develop a gambling disorder evidence a pattern of gambling that gradually increases in both frequency and amount of wagering. Certainly, milder forms can develop into more severe cases. Most individuals with gambling disorder report that one or two types of gambling are most problematic for them, although some individuals participate in many forms of gambling. Individuals are likely to engage in certain types of gambling (e.g., buying scratch tickets daily) more fre- quently than others (e.g., playing slot machines or blackjack at the casino weekly). Fre- quency of gambling can be related more to the type of gambling than to the severity of the overall gambling disorder. For example, purchasing a single scratch ticket each day may not be problematic, while less frequent casino, sports, or card gambling may be part of a gambling disorder. Similarly, amounts of money spent wagering are not in themselves in- dicative of gambling disorder. Some individuals can wager thousands of dollars per month and not have a problem with gambling, while others may wager much smaller amounts but experience substantial gambling-related difficulties. Gambling patterns may be regular or episodic, and gambling disorder can be persis- tent or in remission. Gambling can increase during periods of stress or depression and during periods of substance use or abstinence. There may be periods of heavy gambling and severe problems, times of total abstinence, and periods of nonproblematic gambling. Gambling disorder is sometimes associated with spontaneous, long-term remissions.Nevertheless, some individuals underestimate their vulnerability to develop gambling disorder or to return to gambling disorder following remission. When in a period of re- mission, they may incorrectly assume that they will have no problem regulating gambling and that they may gamble on some forms nonproblematically, only to experience a retum to gambling disorder. Early expression of gambling disorder is more common among males than among fe- males. Individuals who begin gambling in youth often do so with family members or friends. Development of early-life gambling disorder appears to be associated with impul- sivity and substance abuse. Many high school and college students who develop gambling disorder grow out of the disorder over time, although it remains a lifelong problem for some. Mid- and later-life onset of gambling disorder is more common among females than among males. There are age and gender variations in the type of gambling activities and the preva- lence rates of gambling disorder. Gambling disorder is more common among younger and middle-age persons than among older adults, Among adolescents and young adults, the disorder is more prevalent in males than in females. Younger individuals prefer different forms of gambling (e.g., sports betting), while older adults are more likely to develop problems with slot machine and bingo gambling. Although the proportions of individuals who seek treatment for gambling disorder are low across all age groups, younger individ- uals are especially unlikely to present for treatment. Males are more likely to begin gambling earlier in life and to have a younger age at on- set of gambling disorder than females, who are more likely to begin gambling later in life and to develop gambling disorder in a shorter time frame. Females with gambling disor- der are more likely than males with gambling disorder to have depressive, bipolar, and anxiety disorders. Females also have a later age at onset of the disorder and seek treatment sooner, although rates of treatment seeking are low (<10%) among individuals with gam- bling disorder regardless of gender. Temperamental. Gambling that begins in childhood or early adolescence is associated with increased rates of gambling disorder. Gambling disorder also appears to aggregate with antisocial personality disorder, depressive and bipolar disorders, and other sub- stance use disorders, particularly with alcohol disorders. Genetic and physiological. Gambling disorder can aggregate in families, and this effect appears to relate to both environmental and genetic factors. Gambling problems are more frequent in monozygotic than in dizygotic twins. Gambling disorder is also more preva— lent among first-degree relatives of individuals with moderate to severe alcohol use dis- order than among the general population. Course modifiers. Many individuals, including adolescents and young adults, are likely to resolve their problems with gambling disorder over time, although a strong predictor of future gambling problems is prior gambling problems. Individuals from specific cultures and races/ethnicities are more likely to participate in some types of gambling activities than others (e.g., pai gow, cockfights, blackjack, horse rac— ing). Prevalence rates of gambling disorder are higher among African Americans than among European Americans, with rates for Hispanic Americans similar to those of Euro— pean Americans. Indigenous populations have high prevalence rates of gambling disorder. Males develop gambling disorder at higher rates than females, although this gender gap may be narrowing. Males tend to wager on different forms of gambling than females, with cards, sports, and horse race gambling more prevalent among males, and slot machine and bingo gambling more common among females. Functional Consequences of Gambling DisorderAreas of psychoSocial, health, and mental health functioning may be adversely affected by gambling disorder. Specifically, individuals with gambling disorder may, because of their involvement with gambling, jeopardize or lose important relationships with family mem— bers or friends. Such problems may occur from repeatedly lying to others to cover up the extent of gambling or from requesting money that is used for gambling or to pay off gam- bling debts. Employment or educational activities may likewise be adversely impacted by gambling disorder; absenteeism or poor work or school performance can occur with gam- bling disorder, as individuals may gamble during work or school hours or be preoccupied with gambling or its adverse consequence when they should be working or studying. In- dividuals with gambling disorder have poor general health and utilize medical services at high rates. Nondisordered gambling. Gambling disorder must be distinguished from professional and social gambling. In professional gambling, risks are limited and discipline is central. Social gambling typically occurs with friends or colleagues and lasts for a limited period of time, with acceptable losses. Some individuals can experience problems associated with gambling (e.g., short-term chasing behavior and loss of control) that do not meet the full criteria for gambling disorder. Manic episode. Loss of judgment and excessive gambling may occur during a manic ep- isode. An additional diagnosis of gambling disorder should be given only if the gambling behavior is not better explained by manic episodes (e.g., a history of maladaptive gam- bling behavior at times other than during a manic episode). Alternatively, an individual with gambling disorder may, during a period of gambling, exhibit behavior that resembles a manic episode, but once the individual is away from the gambling, these manic-like fea- tures dissipate. Personality disorders. Problems with gambling may occur in individuals with antisocial personality disorder and other personality disorders. If the criteria are met for both disor- ders, both can be diagnosed. Other medical conditions. Some patients taking dopaminergic medications (e.g., for Parkinson’s disease) may experience urges to gamble. If such symptoms dissipate when dopaminergic medications are reduced in dosage or ceased, then a diagnosis of gambling disorder would not be indicated. Gambling disorder is associated with poor general health. In addition, some specific med— ical diagnoses, such as tachycardia and angina, are more common among individuals with gambling disorder than in the general population, even when other substance use disor- ders, including tobacco use disorder, are controlled for. Individuals with gambling disor- der have high rates of comorbidity with other mental disorders, such as substance use disorders, depressive disorders, anxiety disorders, and personality disorders. In some in- dividuals, other mental disorders may precede gambling disorder and be either absent or present during the manifestation of gambling disorder. Gambling disorder may also occur prior to the onset of other mental disorders, especially anxiety disorders and substance use disorders. The neurocog nitive d isorders (NCDs) (referred to in DSM-IV as ”Dementia, Delirium, Amnestic, and Other Cognitive Disorders”) begin with delirium, followed by the syndromes of major NCD, mild NCD, and their etiological subtypes. The major or mild NCD subtypes are NCD due to Alzheimer’s disease; vascular NCD; NCD with Lewy bodies; NCD due to Parkinson’s disease; frontotemporal NCD; NCD due to traumatic brain injury; NCD due to HIV infection; substance/medication—induced NCD; NCD due to Huntington’s disease; NCD due to prion disease; NCD due to another medical condi- tion; NCD due to multiple etiologies; and unspecified NCD. The NCD category encom- passes the group of disorders in which the primary clinical deficit is in cognitive function, and that are acquired rather than developmental. Although cognitive deficits are present in many if not all mental disorders (e.g., schizophrenia, bipolar disorders), only disorders whose core features are cognitive are included in the NCD category. The NCDs are those in which impaired cognition has not been present since birth or very early life, and thus represents a decline from a previously attained level of functioning. The NCDs are unique among DSM—S categories in that these are syndromes for which the underlying pathology, and frequently the etiology as well, can potentially be deter- mined. The various underlying disease entities have all been the subject of extensive re- search, clinical experience, and expert consensus on diagnostic criteria. The DSM-S criteria for these disorders have been developed in close consultation with the expert groups for each of the disease entities and align as closely as possible with the current consensus cri- teria for each of them. The potential utility of biomarkers is also discussed in relation to diagnosis. Dementia is subsumed under the newly named entity major neurocognitive dis- order, although the term dementia is not precluded from use in the etiological subtypes in which that term is standard. Furthermore, DSM—5 recognizes a less severe level of cogni- tive impairment, mild neurocognitive disorder, which can also be a focus of care, and which in DSM-IV was subsumed under ”Cognitive Disorder Not Otherwise Specified.” Diagnos- tic criteria are provided for both these syndromic entities, followed by diagnostic criteria for the different etiological subtypes. Several of the NCDs frequently coexist with one an- other, and their relationships may be multiply characterized under different chapter sub- headings, including ”Differential Diagnosis” (e.g., NCD due to Alzheimer’s disease vs. vascular NCD), ”Risk and Prognostic Factors” (e.g., vascular pathology increasing the clinical expression of Alzheimer’s disease), and / or ”Comorbidity” (e.g., mixed Alzhei- mer’s disease—vascular pathology). The term dementia is retained in DSM-5 for continuity and may be used in settings where physicians and patients are accustomed to this term. Although dementia is the cus- tomary term for disorders like the degenerative dementias that usually affect older adults, the term neurocognitive disorder is widely used and often preferred for conditions affect- ing younger individuals, such as impairment secondary to traumatic brain injury or HIV infection. Furthermore, the major NCD definition is somewhat broader than the term dementia, in that individuals with substantial decline in a single domain can receive this di- agnosis, most notably the DSM-IV category of ”Amnestic Disorder," which would now be diagnosed as major NCD due to another medical condition and for which the term demen- tia would not be used. The criteria for the various NCDs are all based on defined cognitive domains. Table 1 pro- vides for each of the key domains a working definition, examples of symptoms or obser- vations regarding impairments in everyday activities, and examples of assessments. The domains thus defined, along with guidelines for clinical thresholds, form the basis on which the NCDs, their levels, and their subtypes may be diagnosed. 688“. 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A disturbance in attention (i.e., reduced ability to direct, focus, sustain, and shift atten- tion) and awareness (reduced orientation to the environment). The disturbance develops over a short period of time (usually hours to a few days), rep- resents a change from baseline attention and awareness, and tends to fluctuate in se- verity during the course of a day. . An additional disturbance in cognition (e.g., memory deficit, disorientation, language, visuospatial ability, or perception). . The disturbances in Criteria A and C are not better explained by another preexisting, established, or evolving neurocognitive disorder and do not occur in the context of a severely reduced level of arousal, such as coma. There is evidence from the history, physical examination, or laboratory findings that the disturbance is a direct physiological consequence of another medical condition, sub- stance intoxication or withdrawal (i.e., due to a drug of abuse or to a medication), or exposure to a toxin, or is due to multiple etiologies. Specify whether:Substance intoxication delirium: This diagnosis should be made instead of sub- stance intoxication when the symptoms in Criteria A and C predominate in the clinical picture and when they are sufficiently severe to warrant clinical attention. Coding note: The |CD-9-CM and ICD-10-CM codes for the [specific substance] in- toxication delirium are indicated in the table below. Note that the lCD-10-CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the substance intoxication delirium, the 4th position character is “1," and the clinician should record “mild [substance] use disorder‘ before the substance intoxication de- lirium (e.g., “mild cocaine use disorder with cocaine intoxication delirium"). If a mod- erate or severe substance use disorder is comorbid with the substance intoxication delirium, the 4th position character is “2,” and the clinician should record “moderate [substance] use disordei” or “severe [substance] use disorder,” depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder (e.g., after a one-time heavy use of the substance), then the 4th posi- tion character is “9," and the clinician should record only the substance intoxication delirium. With use disorder, disorder, moderate or Without useAlcohol 291.0 F10.121 F10.221 F10.921Cannabis 292.81 F12.121 F12.221 F12.921Phencyclidine 292.81 F16.121 F16.221 F16.921Other hallucinogen 292.81 F16.121 F16.221 F16.921Inhalant 292.81 F18.121 F18.221 F18.921Opioid 292.81 F11.121 F11.221 F11.921With use disorder, disorder, moderate or Without useSedative, hypnotic, or anxiolytic 292.81 F13.121 F13.221 F13.921Amphetamine (or other 292.81 F15.121 F15.221 F15.921Cocaine 292.81 F14.121 F14.221 F14.921Other (or unknown) substance 292.81 F19.121 F19.221 F19.921Substance withdrawal delirium: This diagnosis should be made instead of sub- stance withdrawal when the symptoms in Criteria A and C predominate in the clinical picture and when they are sufficiently severe to warrant clinical attention. Code [specific substance] withdrawal delirium: 291.0 (F10.231) alcohol; 292.0 (F11.23) opioid; 292.0 (F13.231) sedative, hypnotic, or anxiolytic; 292.0 (F19.231) other (or unknown) substance/medication. Medication-induced delirium: This diagnosis applies when the symptoms in Criteria A and C arise as a side effect of a medication taken as prescribed. Coding note: The |CD-9-CM code for [specific medication]-induced delirium is 292.81. The |CD-10-CM code depends on the type of medication. If the medication is an opioid taken as prescribed, the code is F11.921. It the medication is a seda- tive, hypnotic, or anxiolytic taken as prescribed, the code is F13.921. If the medica- tion is an amphetamine-type or other stimulant taken as prescribed, the code is F15.921. For medications that do not fit into any of the classes (e.g., dexametha- sone) and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown. the code is F19.921. 293.0 (F05) Delirium due to another medical condition: There is evidence from the history, physical examination, or laboratory findings that the disturbance is attributable to the physiological consequences of another medical condition. Coding note: Include the name of the other medical condition in the name of the delirium (e.g., 293.0 [F05] delirium due to hepatic encephalopathy). The other med- delirium due to another medical condition (e.g.. 572.2 [K7290] hepatic encepha- lopathy; 293.0 [F05] delirium due to hepatic encephalopathy). 293.0 (F05) Delirium due to multiple etiologies: There is evidence from the history, physical examination, or laboratory findings that the delirium has more than one etiol- ogy (e.g., more than one etiological medical condition; another medical condition plus substance intoxication or medication side effect). Coding note: Use multiple separate codes reflecting specific delirium etiologies (e.g.. 572.2 [K7290] hepatic encephalopathy, 293.0 [F05] delirium due to hepatic failure; 291.0 [F10.231] alcohol withdrawal delirium). Note that the etiological med- ical condition both appears as a separate code that precedes the delirium code and is substituted into the delirium due to another medical condition rubric. Specify if:Acute: Lasting a few hours or days.Persistent: Lasting weeks or months.Specify if:Hyperactive: The individual has a hyperactive level of psychomotor activity that may be accompanied by mood lability, agitation, and/or refusal to cooperate with medical care. Hypoactive: The individual has a hypoactive level of psychomotor activity that may be accompanied by sluggishness and lethargy that approaches stupor. Mixed level of activity: The individual has a normal level of psychomotor activity even though attention and awareness are disturbed. Also includes individuals whose activity level rapidly fluctuates. ICD-9-CM. The name of the substance/medication intoxication delirium begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the delirium. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes (e.g., dexa- methasone), the code for "other substance" should be used; and in cases in which a sub- stance is judged to be an etiological factor but the specific class of substance is unknown, the category "unknown substance” should be used. The name of the disorder is followed by the course (i.e., acute, persistent), followed by the specifier indicating level of psychomotor activity (i.e., hyperactive, hypoactive, mixed level of activity). Unlike the recording procedures for ICD-lO-CM, which combine the sub- stance/medication intoxication delirium and substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of acute hyperactive intoxication delirium occurring in a man with a severe co- caine use disorder, the diagnosis is 292.81 cocaine intoxication delirium, acute, hyperac- tive. An additional diagnosis of 304.20 severe cocaine use disorder is also given. If the intoxication delirium occurs without a comorbid substance use disorder (e.g., after a one- time heavy use of the substance), no accompanying substance use disorder is noted (e.g., 292.81 phencyclidine intoxication delirium, acute, hypoactive). I CD-10-CM . The name of the substance/ medication intoxication delirium begins with the specific substance (e.g., cocaine, dexamethasone) that is presumed to be causing the delirium. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class and presence or absence of a comorbid substance use disorder. For substances that do not fit into any of the classes (e.g., dexamethasone), the code for ”other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the category ”unknown substance” should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word ”with,” followed by the name of the substance intoxication delirium, followed by the course (i.e., acute, persistent), followed by the specifier indicating level of psychomotor activity (i.e., hyperactive, hypoactive, mixed level of activity). For exam- ple, in the case of acute hyperactive intoxication delirium occurring in a man with a severe c0- caine use disorder, the diagnosis is F14.221 severe cocaine use disorder with cocaine intoxication delirium, acute, hyperactive. A separate diagnosis of the comorbid severe cocaine use disorder is not given. If the intoxication delirium occurs without a comorbid substance use disorder (e.g., after a one-time heavy use of the substance), no accompanying substance use disorder is noted (e.g., F16.921 phencyclidine intoxication delirium, acute, hypoactive). ICD-9-CM. The name of the substance/medication withdrawal delirium begins with the specific substance (e.g., alcohol) that is presumed to be causing the withdrawal delirium. The diagnostic code is selected from substance—specific codes included in the coding note included in the criteria set. The name of the disorder is followed by the course (i.e., acute, persistent), fol- lowed by the specifier indicating level of psychomotor activity (i.e., hyperactive, hypoactive, mixed level of activity). Unlike the recording procedures for ICD-IOCM, which combine the substance/medication withdrawal delirium and substance use disorder into a single code, for ICD—9—CM a separate diagnostic code is given for the substance use disorder. For example, in the case of acute hyperactive withdrawal delirium occurring in a man with a severe alcohol use disorder, the diagnosis is 291.0 alcohol withdrawal delirium, acute, hyperactive. An additional diagnosis of 303.90 severe alcohol use disorder is also given. I CD-10-CM. The name of the substance/medication withdrawal delirium begins with the specific substance (e.g., alcohol) that is presumed to be causing the withdrawal delir- ium. The diagnostic code is selected from substance-specific codes included in the coding note included in the criteria set. When recording the name of the disorder, the comorbid moderate or severe substance use disorder (if any) is listed first, followed by the word ”with,” followed by the substance withdrawal delirium, followed by the course (i.e., acute, persistent), followed by the specifier indicating level of psychomotor activity (i.e., hyper- active, hypoactive, mixed level of activity). For example, in the case of acute hyperactive withdrawal delirium occurring in a man with a severe alcohol use disorder, the diagnosis is F10.231 severe alcohol use disorder with alcohol withdrawal delirium, acute, hyperac- tive. A separate diagnosis of the comorbid severe alcohol use disorder is not given. Medication-induced delirium. The name of the medication—induced delirium begins with the specific substance (e.g., dexamethasone) that is presumed to be causing the de- lirium. The name of the disorder is followed by the course (i.e., acute, persistent), followed by the specifier indicating level of psychomotor activity (i.e., hyperactive, hypoactive, mixed level of activity). For example, in the case of acute hyperactive medication-induced delirium occurring in a man using dexamethasone as prescribed, the diagnosis is 292.81 (F19.921) dexamethasone-induced delirium, acute, hyperactive. Regarding course, in hospital settings, delirium usually lasts about 1 week, but some symptoms often persist even after individuals are discharged from the hospital. Individuals with delirium may rapidly switch between hyperactive and hypoactive states. The hyperactive state may be more common or more frequently recognized and often is associated with medication side effects and drug withdrawal. The hypoactive state may be more frequent in older adults. The essential feature of delirium is a disturbance of attention or awareness that is accom- or evolving neurocognitive disorder (NCD). The disturbance in attention (Criterion A) is manifested by reduced ability to direct, focus, sustain, and shift attention. Questions must be repeated because the individual’s attention wanders, or the individual may perseverate with an answer to a previous question rather than appropriately shift attention. The indi- vidual is easily distracted by irrelevant stimuli. The disturbance in awareness is mani- fested by a reduced orientation to the environment or at times even to oneself. The disturbance develops over a short period of time, usually hours to a few days, and tends to fluctuate during the course of the day, often with worsening in the evening and night when external orienting stimuli decrease (Criterion B). There is evidence from the history, physical examination, or laboratory findings that the disturbance is a physiologi- cal consequence of an underlying medical condition, substance intoxication or with- drawal, use of a medication, or a toxin exposure, or a combination of these factors (Criterion E). The etiology should be coded according to the etiologically appropriate sub- type (i.e., substance or medication intoxication, substance withdrawal, another medical condition, or multiple etiologies). Delirium often occurs in the context of an underlying NCD. The impaired brain function of individuals with mild and major NCD renders them more vulnerable to delirium. There is an accompanying change in at least one other area that may include memory and learning (particularly recent memory), disorientation (particularly to time and place), alteration in language, or perceptual distortion or a perceptual-motor disturbance (Crite- rion C). The perceptual disturbances accompanying delirium include misinterpretations, illusions, or hallucinations; these disturbances are typically visual, but may occur in other modalities as well, and range from simple and uniform to highly complex. Normal atten- tion/arousal, delirium, and coma lie on a continuum, with coma defined as the lack of any response to verbal stimuli. The ability to evaluate cognition to diagnose delirium depends on there being a level of arousal sufficient for response to verbal stimulation; hence, delir- ium should not be diagnosed in the context of coma (Criterion D). Many noncomatose pa- tients have a reduced level of arousal. Those patients who show only minimal responses to verbal stimulation are incapable of engaging with attempts at standardized testing or even interview. This inability to engage should be classified as severe inattention. Low-arousal states (of acute onset) should be recognized as indicating severe inattention and cognitive change, and hence delirium. They are clinically indistinguishable from delirium diag- nosed on the basis of inattention or cognitive change elicited through cognitive testing and interview. Delirium is often associated with a disturbance in the sleep-wake cycle. This disturbance can include daytime sleepiness, nighttime agitation, difficulty falling asleep, excessive sleepiness throughout the day, or wakefulness throughout the night. In some cases, com- plete reversal of the night-day sleep-wake cycle can occur. Sleep—wake cycle disturbances are very common in delirium and have been proposed as a core criterion for the diagnosis. The individual with delirium may exhibit emotional disturbances, such as anxiety, fear, depression, irritability, anger, euphoria, and apathy. There may be rapid and unpre- dictable shifts from one emotional state to another. The disturbed emotional state may also be evident in calling out, screaming, cursing, muttering, moaning, or making other sounds. These behaviors are especially prevalent at night and under conditions in which stimulation and environmental cues are lacking. The prevalence of delirium is highest among hospitalized older individuals and varies depending on the individuals’ characteristics, setting of care, and sensitivity of the detec- tion method. The prevalence of delirium in the community overall is low (1%—2%) but in- creases with age, rising to 14% among individuals older than 85 years. The prevalence is 10%—30% in older individuals presenting to emergency departments, where the delirium often indicates a medical illness. The prevalence of delirium when individuals are admitted to the hospital ranges from 14% to 24%, and estimates of the incidence of delirium arising during hospitalization range from 6% to 56% in general hospital populations. Delirium occurs in 15%—53% of older individuals postoperatively and in 70%—87% of those in intensive care. Delirium oc- curs in up to 60% of individuals in nursing homes or post—acute care settings and in up to 83% of all individuals at the end of life. While the majority of individuals with delirium have a full recovery with or without treatment, early recognition and intervention usually shortens the duration of the delir- ium. Delirium may progress to stupor, coma, seizures, or death, particularly if the under- lying cause remains untreated. Mortality among hospitalized individuals with delirium is high, and as many as 40% of individuals with delirium, particularly those with malignan- cies and other significant underlying medical illness, die within a year after diagnosis. Environmental. Delirium may be increased in the context of functional impairment, im- mobility, a history of falls, low levels of activity, and use of drugs and medications with psychoactive properties (particularly alcohol and anticholinergics). Genetic and physiological. Both major and mild NCDs can increase the risk for delir- ium and complicate the course. Older individuals are especially susceptible to delirium compared With younger adults. Susceptibility to delirium in infancy and through child- hood may be greater than in early and middle adulthood. In childhood, delirium may be related to febrile illnesses and certain medications (e.g., anticholinergics). In addition to laboratory findings characteristic of underlying medical conditions (or in- toxication or withdrawal states), there is often generalized slowing on electroencephalog- raphy, and fast activity is occasionally found (e.g., in some cases of alcohol withdrawal delirium). However, electroencephalography is insufficiently sensitive and specific for di- agnostic use. Functional Consequences of DeiiriumDelirium itself is associated with increased functional decline and risk of institutional placement. Hospitalized individuals 65 years or older with delirium have three times the risk of nursing home placement and about three times the functional decline as hospital- ized patients without delirium at both discharge and 3 months postdischarge. Psychotic disorders and bipolar and depressive disorders with psychotic features. Delirium that is characterized by vivid hallucinations, delusions, language disturbances, and agitation must be distinguished from brief psychotic disorder, schizophrenia, schizo- phreniform disorder, and other psychotic disorders, as well as from bipolar and depres- sive disorders with psychotic features. Acute stress disorder. Delirium associated with fear, anxiety, and dissociative symptoms, such as depersonalization, must be distinguished from acute stress disorder, which is pre- cipitated by exposure to a severely traumatic event. Malingering and factitious disorder. Delirium can be distinguished from these disor- ders on the basis of the often atypical presentation in malingering and factitious disorder and the absence of another medical condition or substance that is etiologically related to the apparent cognitive disturbance. Other neurocognitive disorders. The most common differential diagnostic issue when evaluating confusion in older adults is disentangling symptoms of delirium and dementia. The clinician must determine whether the individual has delirium; a delirium superim- posed on a preexisting NCD, such as that due to Alzheimer’s disease; or an NCD without delirium. The traditional distinction between delirium and dementia according to acute- ness of onset and temporal course is particularly difficult in those elderly individuals who had a prior NCD that may not have been recognized, or who develop persistent cognitive impairment following an episode of delirium. 780.09 (R41.0)This category applies to presentations in which symptoms characteristic of delirium that cause clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning predominate but do not meet the full criteria for delirium or any of the disorders in the neurocognitive disorders diagnostic class. The other specified delirium category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for delirium or any specific neuro- cognitive disorder. This is done by recording “other specified delirium" followed by the spe- cific reason (e.g., “attenuated delirium syndrome"). An example of a presentation that can be specified using the “other specified” desig- nation is the following: Attenuated delirium syndrome: This syndrome applies in cases of delirium in which the severity of cognitive impairment falls short of that required for the diagnosis, or in which some, but not all, diagnostic criteria for delirium are met. 780.09 (R41.0)This category applies to presentations in which symptoms characteristic of delirium that cause clinically significant distress or impairment in social, occupational, or other impor- tant areas of functioning predominate but do not meet the full criteria for delirium or any of the disorders in the neurocognitive disorders diagnostic class. The unspecified delirium category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for delirium, and includes presentations for which there is insuffi- cient information to make a more specific diagnosis (e.g., in emergency room settings). A. Evidence of significant cognitive decline from a previous level of performance in one or more cognitive domains (complex attention. executive function, learning and mem- ory, language, perceptuaI—motor, or social cognition) based on: 1. Concern ot the individual, a knowledgeable informant, or the clinician that there has 2. A substantial impairment in cognitive performance. preferably documented by stan- dardized neuropsychological testing or, in its absence, another quantified clinical assessment. B. The cognitive deficits interfere with independence in everyday activities (i.e., at a min- imum, requiring assistance with complex instrumental activities of daily living such as paying bills or managing medications). C. The cognitive deficits do not occur exclusively in the context of a delirium. D. The cognitive deficits are not better explained by another mental disorder (e.g., major depressive disorder, schizophrenia). Specify whether due to:Alzheimer’s disease (pp. 611—614)Frontotemporal lobar degeneration (pp. 614—618)Lewy body disease (pp. 618—621)Vascular disease (pp. 621—624)Traumatic brain injury (pp. 624—627)Substance/medication use (pp. 627-632)HIV infection (pp. 632—634)Prion disease (pp. 634—636)Parkinson’s disease (pp. 636—638)Huntington's disease (pp. 638—641)Another medical condition (pp. 641—642)Multiple etiologies (pp. 642—643)Unspecified (p. 643)Coding note: Code based on medical or substance etiology. In some cases, there is need for an additional code for the etiological medical condition, which must immediately pre- cede the diagnostic code for major neurocognitive disorder, as follows: Probable: 331.0 (G309) Probable: 294.1x 331.83 (G31.84)Possible: no additional (F02.8x) (Do not use addi- medical code Possible: 331.9 tional code for (631.9)C Alzheimer‘s disease.) Probable: 331.19 Probable: 294.1x 331.83 (G31.84) (G31.09) (F02.8x) (Do not use addi- Possible: no additional Possible: 331.9 tional code for medical code (631.9)c frontotemporal disease.) Probable: 331.82 Probable: 294.1x 331.83 (G31.84) (631.83) (F02.8x) (Do not use addi- Possible: no additional Possible: 331.9 tional code for medical code (631.9)C Lewy body disease.) No additional medical Probable: 290.40 331.83 (G31.84) code (F01.5x) (Do not use addi- Possible: 331.9 tional code for the (631.9)c vascular disease.) 907.0 ($06.2X93) 294.1x (F02.8x) 331.83 (631.84) code for the trau- matic brain injury.) No additional medical Code based on the Code based on the code type of substance causing the major type of substance causing the mild Due to anotherDue to multiple 046.79 (A819)Probable: 332.0 (620)Possible: No additional 333.4 (G10)Code the other medical (e.g., 340 [635]Code all of the etiological (with the exception of 294.1x (F02.8x) 294.1 x (F02.8x) Probable: 294.1x (F02.8x)Possible: 331.9 (631 .9)0 294.1x (F02.8x) 294.1x (F02.8x) 294.1x (F02.8x) (Plus the code for the relevant sub- etiology.) 799.59 (R413) 331.83 (G31.84) infection.) 331.83 (631.84) prion disease.) 331.83 (G31.a4) disease.) 331.83 (G31.84) disease.) 331.83 (G31.84) tions.) 331.83 (G31.84) (Plus the code for the relevant sub- a role in the etiol- ogy. Do not use ad- the presumed conditions.) 799.59 (R41.9) aCode first, before code for major neurocognitive disorder. bCode fifth character based on symptom specifier: .xO without behavioral disturbance; .x1 with be- havioral disturbance (e.g., psychotic symptoms, mood disturbance, agitation, apathy, or other be- havioral symptoms). CNote: Behavioral disturbance specifier cannot be coded but should still be indicated in writing. dSee “Substance/Medication-Induced Major or Mild Neurocognitive Disorder.”Without behavioral disturbance: If the cognitive disturbance is not accompanied by any clinically significant behavioral disturbance. With behavioral disturbance (specify disturbance): If the cognitive disturbance is ac- companied by a clinically significant behavioral disturbance (e.g., psychotic symptoms, mood disturbance, agitation, apathy, or other behavioral symptoms). Specify current severity:Mild: Difficulties with instrumental activities of daily living (e.g., housework, managing money). Moderate: Difficulties with basic activities of daily living (e.g., feeding, dressing). Severe: Fully dependent.A. Evidence of modest cognitive decline from a previous level of performance in one or more cognitive domains (complex attention, executive function, learning and memory, language, perceptual motor, or social cognition) based on: 1. Concern oi the individual, a knowledgeable informant, or the clinician that there has 2. A modest impairment in cognitive performance, preferably documented by stan- dardized neuropsychological testing or, in its absence, another quantified clinical assessment. B. The cognitive deficits do not interfere with capacity for independence in everyday activities (i.e., complex instrumental activities of daily living such as paying bills or managing medications are preserved, but greater effort, compensatory strategies, or accommodation may be required). C. The cognitive deficits do not occur exclusively in the context of a delirium. D. The cognitive deficits are not better explained by another mental disorder (e.g., major depressive disorder, schizophrenia). Specify whether due to:Alzheimer's disease (pp. 611—614)Frontotemporal lobar degeneration (pp. 614—618)Lewy body disease (pp. 618—621)Vascular disease (pp. 621—624)Traumatic brain injury (pp. 624—627)Substance/medication use (pp. 627—632)HIV infection (pp. 632—634)Prion disease (pp. 634—636)Parkinson’s disease (pp. 636—638)Huntington’s disease (pp. 638-641)Another medical condition (pp. 641—642)Multiple etiologies (pp. 642—643)Unspecified (p. 643)Coding note: For mild neurocognitive disorder due to any of the medical etiologies listed above, code 331.83 (631.84). Do not use additional codes for the presumed etiological medical conditions. For substance/medication-induced mild neurocognitive disorder, code based on type of substance; see “Substance/Medication-Induced Major or Mild Neurocog- nitive Disorder." For unspecified mild neurocognitive disorder, code 799.59 (R41.9). Without behavioral disturbance: If the cognitive disturbance is not accompanied by any clinically significant behavioral disturbance. With behavioral disturbance (specify disturbance): If the cognitive disturbance is ac- companied by a clinically significant behavioral disturbance (e.g., psychotic symptoms, mood disturbance, agitation, apathy, or other behavioral symptoms). Major and mild neurocognitive disorders (NCDs) are primarily subtyped according to the known or presumed etiological/ pathological entity or entities underlying the cognitive de- cline. These subtypes are distinguished on the basis of a combination of time course, charac- teristic domains affected, and associated symptoms. For certain etiological subtypes, the diagnosis depends substantially on the presence of a potentially causative entity, such as Par- kinson’s or Huntington’s disease, or a traumatic brain injury or stroke in the appropriate time period. For other etiological subtypes (generally the neurodegenerative diseases like Alzhei- mer’s disease, frontotemporal lobar degeneration, and Lewy body disease), the diagnosis is based primarily on the cognitive, behavioral, and functional symptoms. Typically, the differ- clearer at the level of major NCD than at the level of mild NCD, but sometimes characteristic symptoms and associated features are present at the mild level as well. NCDs are frequently managed by clinicians in multiple disciplines. For many sub- types, multidisciplinary international expert groups have developed specialized consen- sus criteria based on clinicopathological correlation with underlying brain pathology. The subtype criteria here have been harmonized with those expert criteria. Evidence for distinct behavioral features in NCDs has been recognized, particularly in the areas of psychotic symptoms and depression. Psychotic features are common in many NCDs, particularly at the mild-to-moderate stage of major NCDs due to Alzheimer’s dis- ease, Lewy body disease, and frontotemporal lobar degeneration. Paranoia and other delusions are common features, and often a persecutory theme may be a prominent aspect of delusional ideation. In contrast to psychotic disorders with onset in earlier life (e.g., schizophrenia), disorganized speech and disorganized behavior are not characteristic of psychosis in NCDs. Hallucinations may occur in any modality, although visual hallucina- tions are more common in NCDs than in depressive, bipolar, or psychotic disorders. Mood disturbances, including depression, anxiety, and elation, may occur. Depression is common early in the course (including at the mild NCD level) of NCD due to Alzhei- mer’s disease and Parkinson’s disease, while elation may occur more commonly in fron- totemporal lobar degeneration. When a full affective syndrome meeting diagnostic criteria for a depressive or bipolar disorder is present, that diagnosis should be coded as well. Mood symptoms are increasingly recognized to be a significant feature in the earliest stages of mild NCDs such that clinical recognition and intervention may be important. Agitation is common in a wide variety of NCDs, particularly in major NCD of moder- ate to severe severity, and often occurs in the setting of confusion or frustration. It may arise as combative behaviors, particularly in the context of resisting caregiving duties such as bathing and dressing. Agitation is characterized as disruptive motor or vocal activity and tends to occur with advanced stages of cognitive impairment across all of the NCDs. Individuals with NCD can present with a wide variety of behavioral symptoms that are the focus of treatment. Sleep disturbance is a common symptom that can create a need for clinical attention and may include symptoms of insomnia, hypersomnia, and circadian rhythm disturbances. Apathy is common in mild and mild major NCD. It is observed particularly in NCD due to Alzheimer’s disease and may be a prominent feature of NCD due to frontotemporal lobar degeneration. Apathy is typically characterized by diminished motivation and re- duced goal—directed behavior accompanied by decreased emotional responsiveness. Symptoms of apathy may manifest early in the course of NCDs when a loss of motivation to pursue daily activities or hobbies may be observed. Other important behavioral symptoms include wandering, disinhibition, hyperpha- gia, and hoarding. Some of these symptoms are characteristic of specific disorders, as dis- cussed in the relevant sections. When more than one behavioral disturbance is observed, each type should be noted in writing with the specifier ”with behavioral symptoms.” Major and mild NCDs exist on a spectrum of cognitive and functional impairment. Major NCD corresponds to the condition referred to in DSM-IV as dementia, retained as an alter- native in this volume. The core feature of NCDs is acquired cognitive decline in one or part of the individual, a knowledgeable informant, or the clinician, and 2) performance on an objective assessment that falls below the expected level or that has been observed to de- cline over time. Both a concern and objective evidence are required because they are com- plementary. When there is an exclusive focus on objective testing, a disorder may go tually represents a substantial decline in abilities, or an illness may be incorrectly diag- from their own baseline or is a result of extraneous factors like test conditions or a passing illness. Alternatively, excessive focus on subjective symptoms may fail to diagnose illness in individuals with poor insight, or whose informants deny or fail to notice their symptoms, or it may be overly sensitive in the so-called worried well. taneously. Rather, it may need to be elicited by careful questioning about specific symp- toms that commonly occur in individuals with cognitive deficits (see Table 1 in the introduction to this chapter). For example, memory concerns include difficulty remember— ing a short grocery list or keeping track of the plot of a television program; executive con- cerns include difficulty resuming a task when interrupted, organizing tax records, or planning a holiday meal. At the mild NCD level, the individual is likely to describe these tasks as being more difficult or as requiring extra time or effort or compensatory strategies. At the major NCD level, such tasks may only be completed with assistance or may be abandoned altogether. At the mild NCD level, individuals and their families may not no- tice such symptoms or may view them as normal, particularly in the elderly; thus, careful history taking is of paramount importance. The difficulties must represent changes rather than lifelong patterns: the individual or informant may clarify this issue, or the clinician can infer change from prior experience with the patient or from occupational or other clues. It is also critical to determine that the difficulties are related to cognitive loss rather than to motor or sensory limitations. Neuropsychological testing, with performance compared with norms appropriate to the patient’s age, educational attainment, and cultural background, is part of the standard evaluation of NCDs and is particularly critical in the evaluation of mild NCD. For major NCD, performance is typically 2 or more standard deviations below appropriate norms (3rd percentile or below). For mild NCD, performance typically lies in the 1—2 standard de- viation range (between the 3rd and 16th percentiles). However, neuropsychological test- ing is not available in all settings, and neuropsychological thresholds are sensitive to the specific test(s) and norms employed, as well as to test conditions, sensory limitations, and intercurrent illness. A variety of brief office-based or ”bedside” assessments, as described in Table 1, can also supply objective data in settings where such testing is unavailable or infeasible. In any case, as with cognitive concerns, objective performance must be inter- preted in light of the individual’s prior performance. Optimally, this information would be available from a prior administration of the same test, but often it must be inferred based on appropriate norms, along with the individual’s educational history, occupation, and other factors. Norms are more challenging to interpret in individuals with very high or very low levels of education and in individuals being tested outside their own language or cultural background. Criterion B relates to the individual's level of independence in everyday functioning. Individuals with major NCD will have impairment of sufficient severity so as to interfere with independence, such that others will have to take over tasks that the individuals were previously able to complete on their own. Individuals with mild NCD will have preserved independence, although there may be subtle interference with function or a report that tasks require more effort or take more time than previously. The distinction between major and mild NCD is inherently arbitrary, and the disorders exist along a continuum. Precise thresholds are therefore difficult to determine. Careful history taking, observation, and integration with other findings are required, and the im- plications of diagnosis should be considered when an individual’s clinical manifestations lie at a boundary. Typically the associated features that support a diagnosis of major or mild NCD will be specific to the etiological subtype (e.g., neuroleptic sensitivity and visual hallucinations in NCD due to Lewy body disease). Diagnostic features specific to each of the subtypes are found in the relevant sections. The prevalence of NCD varies widely by age and by etiological subtype. Overall preva- lence estimates are generally only available for older populations. Among individuals older than 60 years, prevalence increases steeply with age, so prevalence estimates are more accurate for narrow age bands than for broad categories such as "over 65" (where the mean age can vary greatly with the life expectancy of the given population). For those eti- ological subtypes occurring across the lifespan, prevalence estimates for NCD are likely to be available, if at all, only as the fraction of individuals who develop NCD among those with the relevant condition (e.g., traumatic brain injury, HIV infection). Overall prevalence estimates for dementia (which is largely congruent with major NCD) are approximately 1%—2% at age 65 years and as high as 30% by age 85 years. The prevalence of mild NCD is very sensitive to the definition of the disorder, particularly in community settings, where evaluations are less detailed. In addition, in contrast with clin- ical settings, where cognitive concern must be high to seek and locate care, there may be a less clear decline from baseline functioning. Estimates of the prevalence of mild cognitive impairment (which is substantially congruent with mild NCD) among older individuals are fairly variable, ranging from 2% to 10% at age 65 and 5% to 25% by age 85. The course of NCD varies across etiological subtypes, and this variation can be useful in differential diagnosis. Some subtypes (e.g., those related to traumatic brain injury or stroke) typically begin at a specific time and (at least after initial symptoms related to in- flammation or swelling subside) remain static. Others may fluctuate over time (although if this occurs, the possibility of delirium superimposed on NCD should be considered). NCDs due to neurodegenerative diseases like Alzheimer's disease or frontotemporal lobar degeneration typically are marked by insidious onset and gradual progression, and the pattern of onset of cognitive deficits and associated features helps to distinguish among them. NCDs with ohset in childhood and adolescence may have broad repercussions for so- cial and intellectual development, and in this setting intellectual disability (intellectual nosed to capture the full diagnostic picture and ensure the provision of a broad range of services. In older individuals, NCDs often occur in the setting of medical illnesses, frailty, and sensory loss, which complicate the clinical picture for diagnosis and treatment. When cognitive loss occurs in youth to midlife, individuals and families are likely to seek care. NCDs are typically easiest to identify at younger ages, although in some settings malingering or other factitious disorders may be a concern. Very late in life, cognitive symptoms may not cause concern or may go unnoticed. In late life, mild NCD must also be distinguished from the more modest deficits associated with “normal aging,” although a substantial fraction of what has been ascribed to normal aging likely represents prodromal phases of various NCDs. In addition, it becomes harder to recognize mild NCD with age because of the increasing prevalence of medical illness and sensory deficits. It becomes harder to differentiate among subtypes with age because there are multiple potential sources of neurocognitive decline. subtypes. Some subtypes are distributed throughout the lifespan, whereas others occur exclusively or primarily in late life. Even within the NCDs of aging, the relative prevalence varies with age: Alzheimer's disease is uncommon before age 60 years, and the prevalence increases steeply thereafter, while the overall less common frontotemporal lobar degener- ation has earlier onset and represents a progressively smaller fraction of NCDs with age. Genetic and physiological. The strongest risk factor for major and mild NCDs is age, primarily because age increases the risk of neurodegenerative and cerebrovascular dis- ease. Female gender is associated with higher prevalence of dementia overall, and especially Alzheimer’s disease, but this difference is largely, if not wholly, attributable to greater lon- gevity in females. Individuals’ and families’ level of awareness and concern about neurocognitive symp- toms may vary across ethnic and occupational groups. Neurocognitive symptoms are more likely to be noticed, particularly at the mild level, in individuals who engage in com- plex occupational, domestic, or recreational activities. In addition, norms for neuropsy- chological testing tend to be available only for broad populations, and thus they may not be easily applicable to individuals with less than high school education or those being evaluated outside their primary language or culture. Like age, culture, and occupation, gender issues may affect the level of concern and aware- ness of cognitive symptoms. In addition, for late-life NCDs, females are likely to be older, to have more medical comorbidity, and to live alone, which can complicate evaluation and treatment. In addition, there are gender differences in the frequency of some of the etio- logical subtypes. In addition to a careful history, neuropsychological assessments are the key measures for diagnosis of NCDs, particularly at the mild level, where functional changes are minimal and symptoms more subtle. Ideally, individuals will be referred for formal neuropsycho— logical testing, which will provide a quantitative assessment of all relevant domains and thus help with diagnosis; provide guidance to the family on areas where the individual may require more support; and serve as a benchmark for further decline or response to therapies. When such testing is unavailable or not feasible, the brief assessments in Table 1 can provide insight into each domain. More global brief mental status tests may be helpful but may be insensitive, particularly to modest changes in a single domain or in those with high premorbid abilities, and may be overly sensitive in those with low premorbid abilities. In distinguishing among etiological subtypes, additional diagnostic markers may come into play, particularly neuroimaging studies such as magnetic resonance imaging scans and positron emission tomography scans. In addition, specific markers may be in- volved in the assessment of specific subtypes and may become more important as addi- tional research findings accumulate over time, as discussed in the relevant sections. By definition, major and mild NCDs affect functioning, given the central role of cognition in human life. Thus, the criteria for the disorders, and the threshold for differentiating mild from major NCD, are based in part on functional assessment. Within major NCD there is a broad range of functional impairment, as implemented in the severity specifiers. In addition, the specific functions that are compromised can help identify the cognitive domains affected, particularly when neuropsychological testing is not available or is difficult to interpret. Normal cognition. The differential diagnosis between normal cognition and mild NCD, as between mild and major NCD, is challenging because the boundaries are inherently ar- bitrary. Careful history taking and objective assessment are critical to these distinctions. A longitudinal evaluation using quantified assessments may be key in detecting mild NCD. Delirium. Both mild and major NCD may be difficult to distinguish from a persistent de- lirium, which can co-occur. Careful assessment of attention and arousal will help to make the distinction. Major depressive disorder. The distinction between mild NCD and major depressive disorder, which may co-occur with NCD, can also be challenging. Specific patterns of cog- nitive deficits may be helpful. For example, consistent memory and executive function deficits are typical of Alzheimer’s disease, whereas nonspecific or more variable perfor- mance is seen in major depression. Alternatively, treatment of the depressive disorder with repeated observation over time may be required to make the diagnosis. Specific learning disorder and other neurodevelopmental disorders. A careful clari- fication of the individual’s baseline status will help distinguish an NCD from a specific learning disorder or other neurodevelopmental disorders. Additional issues may enter the differential for specific etiological subtypes, as described in the relevant sections. NCDs are common in older individuals and thus often co-occur with a wide variety of age- related diseases that may complicate diagnosis or treatment. Most notable of these is delirium, for which NCD increases the risk. In older individuals, a delirium during hos- pitalization is, in many cases, the first time that an NCD is noticed, although a careful his- tory will often reveal evidence of earlier decline. Mixed NCDs are also common in older individuals, as many etiological entities increase in prevalence with age. In younger indi- viduals, NCD often co-occurs with neurodevelopmental disorders; for example, a head in- Major or Mild Neurocognitive Disorder Due to Alzheimer's Disease 611 jury in a preschool child may also lead to significant developmental and learning issues. Additional comorbidity of NCD is often related to the etiological subtype, as discussed in the relevant sections. Due to Alzheimer’s DiseaseA. The criteria are met for major or mild neurocognitive disorder. B. There is insidious onset and gradual progression of impairment in one or more cognitive domains (for major neurocognitive disorder, at least two domains must be impaired). C. Criteria are met for either probable or possible Alzheimer’s disease as follows: For major neurocognitive disorder:Probable Alzheimer’s disease is diagnosed if either of the following is present; oth- erwise, possible Alzheimer’s disease should be diagnosed. 1. Evidence of a causative Alzheimer’s disease genetic mutation from family history or genetic testing. 2. All three of the following are present: a. Clear evidence of decline in memory and learning and at least one other cogni- tive domain (based on detailed history or serial neuropsychological testing). b. Steadily progressive, gradual decline in cognition, without extended plateaus. c. No evidence of mixed etiology (i.e., absence of other neurodegenerative or cerebrovascular disease, or another neurological, mental, or systemic disease or condition likely contributing to cognitive decline). For mild neurocognitive disorder:Probable Alzheimer's disease is diagnosed if there is evidence of a causative Alz- heimer’s disease genetic mutation from either genetic testing or family history. Possible Alzheimer's disease is diagnosed if there is no evidence of a causative Alz- heimer’s disease genetic mutation from either genetic testing or family history, and all three of the following are present: 1. Clear evidence of decline in memory and learning. 2. Steadily progressive, gradual decline in cognition, without extended plateaus. 3. No evidence of mixed etiology (i.e., absence of other neurodegenerative or cere- brovascular disease, or another neurological or systemic disease or condition likely contributing to cognitive decline). D. The disturbance is not better explained by cerebrovascular disease. another neurode- generative disease, the effects of a substance, or another mental, neurological, or sys- temic disorder. Coding note: For probable major neurocognitive disorder due to Alzheimer‘s disease, with behavioral disturbance, code first 331.0 (G303) Alzheimer‘s disease, followed by 294.11 (F02.81) major neurocognitive disorder due to Alzheimer’s disease. For probable neurocognitive disorder due to Alzheimer's disease, without behavioral disturbance, code first 331.0 (G309) Alzheimer's disease, followed by 294.10 (F02.80) major neurocognitive disorder due to Alzheimer's disease. without behavioral disturbance. For possible major neurocognitive disorder due to Alzheimer’s disease, code 331.9 (G31.9) possible major neurocognitive disorder due to Alzheimer‘s disease. (Note: Do not use the additional code for Alzheimer’s disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) For mild neurocognitive disorder due to Alzheimer’s disease, code 331.83 (G31.84). (Note: Do not use the additional code for Alzheimer’s disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) Beyond the neurocognitive disorder (NCD) syndrome (Criterion A), the core features of ma- jor or mild NCD due to Alzheimer’s disease include an insidious onset and gradual pro- gression of cognitive and behavioral symptoms (Criterion B). The typical presentation is amnestic (i.e., with impairment in memory and learning). Unusual nonamnestic presen— tations, particularly visuospatial and logopenic aphasic variants, also exist. At the mild NCD phase, Alzheimer’s disease manifests typically with impairment in memory and leam- ing, sometimes accompanied by deficits in executive function. At the major NCD phase, visuoconstructional/perceptual motor ability and language will also be impaired, partic- ularly when the NCD is moderate to severe. Social cognition tends to be preserved until late in the course of the disease. A level of diagnostic certainty must be specified denoting Alzheimer’s disease as the ”probable” or ”possible” etiology (Criterion C). Probable Alzheimer’s disease is diagnosed in both major and mild NCD if there is evidence of a causative Alzheimer’s disease gene, ei- ther from genetic testing or from an autosomal dominant family history coupled with au- topsy confirmation or a genetic test in an affected family member. For major NCD, a typical clinical picture, without extended plateaus or evidence of mixed etiology, can also be diagnosed as due to probable Alzheimer’s disease. For mild NCD, given the lesser de- gree of certainty that the deficits will progress, these features are only sufficient for a possible Alzheimer’s etiology. If the etiology appears mixed, mild NCD due to multiple eti- ologies should be diagnosed. In any case, for both mild and major NCD due to Alzhei- mer’s disease, the clinical features must not suggest another primary etiology for the NCD (Criterion D). In specialty clinical settings, approximately 80% of individuals with major NCD due to also frequent at the mild NCD stage of impairment. These symptoms are as or more dis- tressing than cognitive manifestations and are frequently the reason that health care is sought. At the mild NCD stage or the mildest level of major NCD, depression and / or ap- athy are often seen. With moderately severe major NCD, psychotic features, irritability, agitation, combativeness, and wandering are common. Late in the illness, gait distur- bance, dysphagia, incontinence, myoclonus, and seizures are observed. The prevalence of overall dementia (major NCD) rises steeply with age. In high—income countries, it ranges from 5% to 10% in the seventh decade to at least 25% thereafter. US. census data estimates suggest that approximately 7% of individuals diagnosed with Alz- heimer’s disease are between ages 65 and 74 years, 53% are between ages 75 and 84 years, and 40% are 85 years and older. The percentage of dementias attributable to Alzheimer’s disease ranges from about 60% to over 90%, depending on the setting and diagnostic cri- teria. Mild NCD due to Alzheimer’s disease is likely to represent a substantial fraction of mild cognitive impairment (MCI) as well. Major or mild NCD due to Alzheimer’s disease progresses gradually, sometimes with brief plateaus, through severe dementia to death. The mean duration of survival after di- Major or Mild Neurocognitive Disorder Due to Alzheimer’s Disease 613 agnosis is approximately 10 years, reflecting the advanced age of the majority of individ- uals rather than the course of the disease; some individuals can live with the disease for as long as 20 years. Iate-stage individuals are eventually mute and bedbound. Death most commonly results from aspiration in those who survive through the full course. In mild NCD due to Alzheimer’s disease, impairments increase over time, and functional status gradually declines until symptoms reach the threshold for the diagnosis of major NCD. The onset of symptoms is usually in the eighth and ninth decades; early-onset forms seen in the fifth and sixth decades are often related to known causative mutations. Symp- toms and pathology do not differ markedly at different onset ages. However, younger in- dividuals are more likely to survive the full course of the disease, while older individuals are more likely to have numerous medical comorbidities that affect the course and man- agement of the illness. Diagnostic complexity is higher in older adults because of the in- creased likelihood of comorbid medical illness and mixed pathology. Environmental. Traumatic brain injury increases risk for major or mild NCD due to Alz- heimer’s disease. Genetic and physiological. Age is the strongest risk factor for Alzheimer’s disease. The at onset, particularly in homozygous individuals. There are also extremely rare causative Alzheimer’s disease genes. Individuals with Down’s syndrome (trisomy 21) develop Alz- heimer’s disease if they survive to midlife. Multiple vascular risk factors influence risk for direct effects on Alzheimer pathology. Detection of an NCD may be more difficult in cultural and socioeconomic settings where memory loss is considered normal in old age, where older adults face fewer cognitive de- mands in everyday life, or where very low educational levels pose greater challenges to objective cognitive assessment. Cortical atrophy, amyloid-predominant neuritic plaques, and tau-predominant neurofibril— lary tangles are hallmarks of the pathological diagnosis of Alzheimer’s disease and may be continued via postmortem histopathological examination. For early-onset cases with auto- somal dominant inheritance, a mutation in one of the known causative Alzheimer’s disease genes—amyloid precursor protein (APP), presenilin 1 (PSENl), or presenilin 2 (PSEN2)— may be involved, and genetic testing for such mutations is commercially available, at least for PSEN1. Apolipoprotein E4 cannot serve as a diagnostic marker because it is only a risk factor and neither necessary nor sufficient for disease occurrence. Since amyloid beta-42 deposition in the brain occurs early in the pathophysiological cascade, amyloid-based diagnostic tests such as amyloid imaging on brain positron emis- sion tomography (PET) scans and reduced levels of amyloid beta—42 in the cerebrospinal fluid (CSF) may have diagnostic value. Signs of neuronal injury, such as hippocampal and temporoparietal cortical atrophy on a magnetic resonance image scan, temporoparietal hypometabolism on a fluorodeoxyglucose PET scan, and evidence for elevated total tau and phospho—tau levels in CSF, provide evidence of neuronal damage but are less specific for Alzheimer’s disease. At present, these biomarkers are not fully validated, and many are available only in tertiary care settings. However, some of them, along with novel bio- markers, will likely move into wider clinical practice in the coming years. Functional Consequences of Major or MildNeurocognitive Disorder Due to Alzheimer’s DiseaseThe prominence of memory loss can cause significant difficulties relatively early in the course. Social cognition (and thus social functioning) and procedural memory (e.g., danc- ing, playing musical instruments) may be relatively preserved for extended periods. Other neurocognitive disorders. Major and mild NCDs due to other neurodegenera- tive processes (e.g., Lewy body disease, frontotemporal lobar degeneration) share the in- features of their own. In major or mild vascular NCD, there is typically history of stroke temporally related to the onset of cognitive impairment, and infarcts or white matter hy- perintensities are judged sufficient to account for the clinical picture. However, particu- larly when there is no clear history of stepwise decline, major or mild vascular NCD can share many clinical features with Alzheimer’s disease. Other concurrent, active neurological or systemic illness. Other neurological or sys- temic illness should be considered if there is an appropriate temporal relationship and severity to account for the clinical picture. At the mild NCD level, it may be difficult to dis- tinguish an Alzheimer’s disease etiology from that of another medical condition (e.g., thy- roid disorders, vitamin B12 deficiency). Major depressive disorder. Particularly at the mild NCD level, the differential diagnosis also includes major depression. The presence of depression may be associated with re- duced daily functioning and poor concentration that may resemble an NCD, but improve- ment with treatment of depression may be useful in making the distinction. Most individuals with Alzheimer’s disease are elderly and have multiple medical conditions that can complicate diagnosis and influence the clinical course. Major or mild NCD due to Alzheimer’s disease commonly co-occurs with cerebrovascular disease, which contributes to the clinical picture. When a comorbid condition contributes to the NCD in an individual with Alzheimer’s disease, then NCD due to multiple etiologies should be diagnosed. A. The criteria are met for major or mild neurocognitive disorder. B. The disturbance has insidious onset and gradual progression.C. Either (1) or (2): 1. Behavioral variant: a. Three or more of the following behavioral symptoms: i. Behavioraldisinhibition. ii. Apathy or inertia.iii. Loss of sympathy or empathy.v. Perseverative, stereotyped or compulsive/ritualistic behavior.v. Hyperorality and dietary changes.b. Prominent decline in social cognition and/or executive abilities.2. Language variant: a. Promihent decline in language ability. in the form of speech production, word finding, object naming, grammar, or word comprehension. D. Relative sparing of learning and memory and perceptual-motor function. E. The disturbance is not better explained by cerebrovascular disease, another neurode- generative disease, the effects of a substance, or another mental, neurological. or sys- temic disorder. Probable frontotemporal neurocognitive disorder is diagnosed if either of the following is present; otherwise, possible frontotemporal neurocognitive disorder should be di- agnosed: 1 . Evidence of a causative frontotemporal neurocognitive disorder genetic mutation. from either family history or genetic testing. 2. Evidence of disproportionate frontal and/or temporal lobe involvement from neuroim- aging. Possible frontotemporal neurocognitive disorder is diagnosed it there is no evidence of a genetic mutation, and neuroimaging has not been performed. Coding note: For probable major neurocognitive disorder due to frontotemporal lobar de- generation, with behavioral disturbance, code first 331.19 (631.09) frontotemporal dis- ease, followed by 294.11 (F02.81) probable major neurocognitive disorder due to frontotemporal lobar degeneration, with behavioral disturbance. For probable major neu- rocognitive disorder due to frontotemporal lobar degeneration, without behavioral distur- bance, code first 331.19 (631.09) frontotemporal disease, followed by 294.10 (F02.80) probable major neurocognitive disorder due to frontotemporal lobar degeneration, without behavioral disturbance. For possible major neurocognitive disorder due to frontotemporal lobar degeneration, code 331.9 (631.9) possible major neurocognitive disorder due to frontotemporal lobar degen— eration. (Note: Do not use the additional code for frontotemporal disease. Behavioral distur- bance cannot be coded but should still be indicated in writing.) For mild neurocognitive disorder due to frontotemporal lobar degeneration, code 331.83 (631.84). (Note: Do not use the additional code for frontotemporal disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) Major or mild frontotemporal neurocognitive disorder (NCD) comprises a number of syn- dromic variants characterized by the progressive development of behavioral and personality change and/ or language impairment. The behavioral variant and three language variants (se- mantic, agrammatic/nonfluent, and logopenic) exhibit distinct patterns of brain atrophy and some distinctive neuropathology. The criteria must be met for either the behavioral or the lan- guage variant to make the diagnosis, but many individuals present with features of both. Individuals with behavioral—variant major or mild frontotemporal NCD present with varying degrees of apathy or disinhibition. They may lose interest in socialization, self- care, and personal responsibilities, or display socially inappropriate behaviors. Insight is usually impaired, and this often delays medical consultation. The first referral is often to a psychiatrist. Individuals may develop changes in social style, and in religious and political beliefs, with repetitive movements, hoarding, changes in eating behavior, and hyperoral- ity. In later stages, loss of sphincter control may occur. Cognitive decline is less prominent, and formal testing may show relatively few deficits in the early stages. Common neuro- cognitive symptoms are lack of planning and organization, distractibility, and poor judg- ment. Deficits in executive function, such as poor performance on tests of mental flexibility, abstract reasoning, and response inhibition, are present, but learning and mem- ory are relatively spared, and perceptual motor abilities are almost always preserved in the early stages. Individuals with language-variant major or mild frontotemporal NCD present with pri- mary progressive aphasia with gradual onset, with three subtypes commonly described: semantic variant, agrammatic/nonfluent variant, and logopenic variant, and each variant has distinctive features and corresponding neuropathology. ”Probable” is distinguished from ”possible” frontotemporal NCD by the presence of causative genetic factors (e.g., mutations in the gene coding for microtubule—associated pro- tein tau) or by the presence of distinctive atrophy or reduced activity in frontotemporal re- gions on structural or functional imaging. Extrapyramidal features may be prominent in some cases, with an overlap with syn- dromes such as progressive supranuclear palsy and corticobasal degeneration. Features of motor neuron disease may be present in some cases (e.g., muscle atrophy, weakness). A subset of individuals develop visual hallucinations. Major or mild frontotemporal NCD is a common cause of early-onset NCD in individuals younger than 65 years. Population prevalence estimates are in the range of 2—10 per 100,000. Approximately 20%—25% of cases of frontotemporal NCD occur in individuals older than 65 years. Frontotemporal NCD accounts for about 5% of all cases of dementia in unselected autopsy series. Prevalence estimates of behavioral variant and semantic lan- guage variant are higher among males, and prevalence estimates of nonfluent language variant are higher among females. Individuals with major or mild frontotemporal NCD commonly present in the sixth de- cade of life, although the age at onset varies from the third to the ninth decades. The dis- ease is gradually progressive, with median survival being 6-11 years after symptom onset and 3—4 years after diagnosis. Survival is shorter and decline is faster in major or mild fron- totemporal NCD than in typical Alzheimer’s disease. Genetic and physiological. Approximately 40% of individuals with major or mild fron- totemporal NCD have a family history of early-onset NCD, and approximately 10% show an autosomal dominant inheritance pattern. A number of genetic factors have been identified, such as mutations in the gene encoding the microtubule associated protein tau (MAPT), the granulin gene (GRN), and the C9ORF72 gene. A number of families with causative muta- tions have been identified (see the section ”Diagnostic Markers” for this disorder), but many individuals with known familial transmission do not have a known mutation. The presence of motor neuron disease is associated with a more rapid deterioration. distinct patterns of atrophy. In behavioral-variant major or mild frontotemporal NCD, both frontal lobes (especially the medial frontal lobes) and the anterior temporal lobes are atrophic. In semantic language—variant major or mild frontotemporal NCD, the middle, inferior, and anterior temporal lobes are atrophic bilaterally but asymmetrically, with the left side usually being more affected. Nonfluent language—variant major or mild fronto- temporal NCD is associated with predominantly left posterior frontal-insular atrophy. The logopenic variant of major or mild frontotemporal NCD is associated with predomi- nantly left posterior perisylvian or parietal atrophy. Functional imaging demonstrates hy- poperfusion and/ or cortical hypometabolism in the corresponding brain regions, which may be present in the early stages in the absence of structural abnormality. Emerging bio— markers for Alzheimer’s disease (e.g., cerebrospinal fluid amyloid-beta and tau levels, and amyloid imaging) may help in the differential diagnosis, but the distinction from Alzhei- mer’s disease can remain difficult (the logopenic variant is in fact often a manifestation of Alzheimer’s disease).In familial cases of frontotemporal NCD, the identification of genetic mutations may help confirm the diagnosis. Mutations associated with frontotemporal NCD include the genes encoding microtubule-associated protein tau (MAPT) and granulin (GRN), C9ORF72, transactive response DNA-binding protein of 43 kDa (TDP—43, or TARDBP), valosin-containing protein (VCP), chromatin modifying protein ZB (CHMPZB), and fused in sarcoma protein (FUS). Functional Consequences of Major or MildBecause of the relative early age at onset of the disorder, the disorder oftens affects work- place and family life. Because of the involvement of language and / or behavior, function is often more severely impaired relatively early in the course. For individuals with the be- havioral variant, prior to diagnostic clarification there may be significant family disrup- tion, legal involvement, and problems in the workplace because of socially inappropriate behaviors. The functional impairment due to behavioral change and language dysfunc- tion, which can include hyperorality, impulsive wandering, and other dishinhibited be- haviors, may far exceed that due to the cognitive disturbance and may lead to nursing home placement or institutionalization. These behaviors can be severely disruptive, even in structured care settings, particularly when the individuals are otherwise healthy, non- frail, and free of other medical comorbidities. Other neurocognitive disorders. Other neurodegenerative diseases may be distinguished from major or mild frontotemporal NCD by their characteristic features. In major or mild NCD due to Alzheimer’s disease, decline in learning and memory is an early feature. However, 10%—30% of patients presenting with a syndrome suggestive of major or mild frontotemporal NCD are found at autopsy to have Alzheimer’s disease pathology. This oc- curs more frequently in individuals who present with progressive dysexecutive syn- dromes in the absence of behavioral changes or movement disorder or in those with the logopenic variant. In major or mild NCD with Lewy bodies, core and suggestive features of Lewy bodies must be present. In major or mild NCD due to Parkinson’s disease, spontaneous parkin- sonism emerges well before the cognitive decline. In major or mild vascular NCD, depend- ing on affected brain regions, there may also be loss of executive ability and behavioral changes such as apathy, and this disorder should be considered in the differential diagno- sis. However, history of a cerebrovascular event is temporally related to the onset of cog- nitive impairment in major or mild vascular NCD, and neuroimaging reveals infarctions or white matter lesions sufficient to account for the clinical picture. Other neurological conditions. Major or mild frontotemporal NCD overlaps with pro- gressive supranuclear palsy, corticobasal degeneration, and motor neuron disease clinically as well as pathologically. Progressive supranuclear palsy is characterized by supranuclear gaze palsies and axial—predominant parkinsonism. Pseudobulbar signs may be present, and retropulsion is often prominent. Neurocognitive assessment shows psy- chomotor slowing, poor working memory, and executive dysfunction. Corticobasal degen- eration presents with asymmetric rigidity, limb apraxia, postural instability, myoclonus, alien limb phenomenon, and cortical sensory loss. Many individuals with behavioral-variant major or mild frontotemporal NCD show features of motor neuron disease, which tend to be mixed upper and predominantly lower motor neuron disease. Other mental disorders and medical conditions. Behavioral—variant major or mild fron— totemporal NCD may be mistaken for a primary mental disorder, such as major depression, bipolar disorders, or schizophrenia, and individuals with this variant often present initially to psychiatry. Over time, the development of progressive neurocognitive difficulties will help to make the distinction. A careful medical evaluation will help to exclude treatable causes of NCDs, such as metabolic disturbances, nutritional deficiencies, and infections. A. The criteria are met for major or mild neurocognitive disorder. B. The disorder has an insidious onset and gradual progression. C. The disorder meets a combination of core diagnostic features and suggestive diagnos- tic features for either probable or possible neurocognitive disorder with Lewy bodies. For probable major or mild neurocognitive disorder with Lewy bodies, the indi- vidual has two core features, or one suggestive feature with one or more core features. For possible major or mild neurocognitive disorder with Lewy bodies, the individ- ual has only one core feature, or one or more suggestive features. 1. Core diagnostic features: a. Fluctuating cognition with pronounced variations in attention and alertness. b. Recurrent visual hallucinations that are well formed and detailed. c. Spontaneous features of parkinsonism, with onset subsequent to the develop- ment of cognitive decline. 2. Suggestive diagnostic features: a. Meets criteria for rapid eye movement sleep behavior disorder. b. Severe neuroleptic sensitivity.D. The disturbance is not better explained by cerebrovascular disease, another neurode- generative disease, the effects of a substance, or another mental, neurological. or sys- temic disorder. Coding note: For probable major neurocognitive disorder with Lewy bodies, with behav- ioral disturbance, code first 331.82 (631.83) Lewy body disease, followed by 294.11 (F02.81) probable major neurocognitive disorder with Lewy bodies, with behavioral distur- bance. For probable major neurocognitive disorder with Lewy bodies, without behavioral disturbance, code first 331.82 (631.83) Lewy body disease, followed by 294.10 (F02.80) probable major neurocognitive disorder with Lewy bodies, without behavioral disturbance. For possible major neurocognitive disorder with Lewy bodies, code 331.9(631.9) possible major neurocognitive disorder with Lewy bodies. (Note: Do not use the additional code for Lewy body disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) For mild neurocognitive disorder with Lewy bodies, code 331.83 (631.84). (Note: Do not use the additional code for Lewy body disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) Major or mild neurocognitive disorder with Lewy bodies (NCDLB), in the case of major neurocognitive disorder (NCD), corresponds to the condition known as dementia with Lewy bodies (DLB). The disorder includes not only progressive cognitive impairment tation); as well as hallucinations in other sensory modalities, depression, and delusions. The symptoms fluctuate in a pattern that can resemble a delirium, but no adequate under- lying cause can be found. The variable presentation of NCDLB symptoms reduces the like- lihood of all symptoms being observed in a brief clinic visit and necessitates a thorough assessment of caregiver observations. The use of assessment scales specifically designed to assess fluctuation may aid in diagnosis. Another core feature is spontaneous parkinson- ism, which must begin after the onset of cognitive decline; by convention, major cognitive deficits are observed at least 1 year before the motor symptoms. The parkinsonism must also be distinguished from neuroleptic-induced extrapyramidal signs. Accurate diagnosis is essential to safe treatment planning, as up to 50% of individuals with NCDLB have se— vere sensitivity to neuroleptic drugs, and these medications should be used with extreme caution in managing the psychotic manifestations. The diagnosis of mild NCDLB is appropriate for individuals who present with the core or suggestive features at a stage when cognitive or functional impairments are not of suf- ficient severity to fulfill criteria for major NCD. However, as for all mild NCDs, there will often be insufficient evidence to justify any single etiology, and use of the unspecified di- agnosis is most appropriate. Individuals with NCDLB frequently experience repeated falls and syncope and transient episodes of unexplained loss of consciousness. Autonomic dysfunction, such as ortho- static hypotension and urinary incontinence, may be observed. Auditory and other nonvisual hallucinations are common, as are systematized delusions, delusional misiden- tification, and depression. The few population—based prevalence estimates for NCDLB available range from 0.1% to 5% of the general elderly population, and from 1.7% to 30.5% of all dementia cases. In brain bank (autopsy) series, the pathological lesions known as Lewy bodies are present in 20%—35% of cases of dementia. The male-to-female ratio is approximately 1.521. NCDLB is a gradually progressive disorder with insidious onset. However, there is often a prodromal history of confusional episodes (delirium) of acute onset, often precipitated by illness or surgery. The distinction between NCDLB, in which Lewy bodies are primar- ily cortical in location, and major or mild NCD due to Parkinson’s disease, in which the pa- thology is primarily in the basal ganglia, is the order in which the cognitive and motor symptoms emerge. In NCDLB, the cognitive decline is manifested early in the course of ill- ness, at least a year before the onset of motor symptoms (see the section ”Differential Di- agnosis” for this disorder). Disease course may be characterized by occasional plateaus but eventually progresses through severe dementia to death. Average duration of survival is 5—7 years in clinical series. Onset of symptoms is typically observed from the sixth through the ninth decades of life, with most cases having their onset when affected indi- viduals are in their mid-7OS. Genetic and physiological. Familial aggregation may occur, and several risk genes have been identified, but in most cases of NCDLB, there is no family history. The underlying neurodegenerative disease is primarily a synucleinopathy due to alpha- synuclein misfolding and aggregation. Cognitive testing beyond the use of a brief screen- ing instrument may be necessary to define deficits clearly. Assessment scales developed to measure fluctuation can be useful. The associated condition REM sleep behavior disorder may be diagnosed through a formal sleep study or identified by questioning the patient or informant about relevant symptoms. Neuroleptic sensitivity (challenge) is not recom— mended as a diagnostic marker but raises suspicion of NCDLB if it occurs. A diagnosti- cally suggestive feature is low striatal dopamine transporter uptake on single photon emission computed tomography (SPECT) or positron emission tomography (PET) scan. Other clinically useful markers potentially include relative preservation of medial tempo- uptake on SPECT/PET perfusion scan with reduced occipital activity; abnormal (low up- slow-wave activity on the electroencephalogram with temporal lobe transient waves. Functional Consequences of Major or MiidIndividuals with NCDLB are more functionally impaired than would be expected for their cognitive deficits when contrasted to individuals with other neurodegenerative diseases, such as Alzheimer’s disease. This is largely a result of motor and autonomic impairments, which cause problems with toileting, transferring, and eating. Sleep disorders and prom- inent psychiatric symptoms may also add to functional difficulties. Consequently, the qual- ity of life of individuals with NCDLB is often significantly worse than that of individuals with Alzheimer’s disease. Major or mild neurocognitive disorder due to Parkinson’s disease. A key differenti- ating feature in clinical diagnosis is the temporal sequence in which the parkinsonism and the NCD appear. For NCD due to Parkinson’s disease, the individual must develop cog- nitive decline in the context of established Parkinson’s disease; by convention, the decline should not reach the stage of major NCD until at least 1 year after Parkinson’s is diagnosed. If less than a year has passed since the onset of motor symptoms, the diagnosis is NCDLB. This distinction is clearer at the major NCD level than at the mild NCD level. The timing and sequence of parkinsonism and mild NCD may be more difficult to de- termine because the onset and clinical presentation can be ambiguous, and unspecified mild NCD should be diagnosed if the other core and suggestive features are absent. Lewy body pathology frequently coexists with Alzheimer’s disease and cerebrovascular disease pathology, particularly among the oldest age groups. In Alzheimer’s disease, there is concomitant synuclein pathology in 60% of cases (if amygdala-restricted cases are in- cluded). In general, there is a higher rate of Lewy body pathology in individuals with de- mentia than in older individuals without dementia. A. The criteria are met for major or mild neurocognitive disorder. B. The clinical features are consistent with a vascular etiology, as suggested by either of the following: 1. Onset of the cognitive deficits is temporally related to one or more cerebrovascular events. 2. Evidence for decline is prominent in complex attention (including processing speed) and frontal-executive function. C. There is evidence of the presence of cerebrovascular disease from history, physical examination, andlor neuroimaging considered sufficient to account for the neurocog- nitive deficits. D. The symptoms are not better explained by another brain disease or systemic disorder. Probable vascular neurocognitive disorder is diagnosed if one of the following is pres- ent; otherwise possible vascular neurocognitive disorder should be diagnosed: 1. Clinical criteria are supported by neuroimaging evidence of significant parenchymal in- jury attributed to cerebrovascular disease (neuroimaging-supported). 2. The neurocognitive syndrome is temporally related to one or more documented cere- brovascular events. 3. Both clinical and genetic (e.g., cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy) evidence of cerebrovascular disease is present. Possible vascular neurocognitive disorder is diagnosed if the clinical criteria are met but neuroimaging is not available and the temporal relationship of the neurocognitive syn- drome with one or more cerebrovascular events is not established. Coding note: For probable major vascular neurocognitive disorder, with behavioral dis— turbance, code 290.40 (F01.51). For probable major vascular neurocognitive disorder, without behavioral disturbance, code 290.40 (F01.50). For possible major vascular neuro- cognitive disorder, with or without behavioral disturbance, code 331.9 (631.9). An addi- tional medical code for the cerebrovascular disease is not needed. For mild vascular neurocognitive disorder, code 331.83 (631.84). (Note: Do not use an additional code for the vascular disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) The diagnosis of major or mild vascular neurocognitive disorder (NCD) requires the es- tablishment of an NCD (Criterion A) and the determination that cerebrovascular disease is the dominant if not exclusive pathology that accounts for the cognitive deficits (Criteria B and C). Vascular etiology may range from large vessel stroke to microvascular disease; the presentation is therefore very heterogeneous, stemming from the types of vascular lesions and their extent and location. The lesions may be focal, multifocal, or diffuse and occur in various combinations. Many individuals with major or mild vascular NCD present with multiple infarctions, with an acute stepwise or fluctuating decline in cognition, and intervening periods of stability and even some improvement. Others may have gradual onset with slow pro- gression, a rapid development of deficits followed by relative stability, or another complex presentation. Major or mild vascular NCD with a gradual onset and slow progression is generally due to small vessel disease leading to lesions in the white matter, basal ganglia, and/ or thalamus. The gradual progression in these cases is often punctuated by acute events that leave subtle neurological deficits. The cognitive deficits in these cases can be at- tributed to disruption of cortical-subcortical circuits, and complex attention, particularly speed of information processing, and executive ability are likely to be affected. Assessing for the presence of sufficient cerebrovascular disease relies on history, phys- ical examination, and neuroimaging (Criterion C). Etiological certainty requires the dem- onstration of abnormalities on neuroimaging. The lack of neuroimaging can result in ter lesions. However, if the neurocognitive impairment is temporally associated with one or more well-documented strokes, a probable diagnosis can be made in the absence of neu- roimaging. Clinical evidence of cerebrovascular disease includes documented history of stroke, with cognitive decline temporally associated with the event, or physical signs con- sistent with stroke (e.g., hemiparesis; pseudobulbar syndrome, visual field defect). Neuro- cerebrovascular disease comprises one or more of the following: one or more large vessel infarcts or hemorrhages, a strategically placed single infarct or hemorrhage (e.g., in angu- lar gyms, thalamus, basal forebrain), two or more lacunar infarcts outside the brain stem, or extensive and confluent white matter lesions. The latter is often termed small vessel dis- ease or subcortical ischemic changes on clinical neuroimaging evaluations. For mild vascular NCD, history of a single stroke or extensive white matter disease is gen- erally sufficient. For major vascular NCD, two or more strokes, a strategically placed stroke, or a combination of white matter disease and one or more lacunes is generally necessary. The disorder must not be better explained by another disorder. For example, promi- nent memory deficit early in the course might suggest Alzheimer's disease, early and prominent parkinsonian features would suggest Parkinson's disease, and a close associa- tion between onset and depression would suggest depression. A neurological assessment often reveals history of stroke and/ or transient ischemic epi- sodes, and signs indicative of brain infarctions. Also commonly associated are personality and mood changes, abulia, depression, and emotional lability. The development of late- function is a common presentation among older adults with progressive small vessel isch- emic disease (”vascular depression”). Major or mild vascular NCD is the second most common cause of NCD after Alzheimer’s disease. In the United States, population prevalence estimates for vascular dementia range from 0.2% in the 65—70 years age group to 16% in individuals 80 years and older. Within 3 months following stroke, 20%—30% of individuals are diagnosed with dementia. In neu- ropathology series, the prevalence of vascular dementia increases from 13% at age 70 years to 44.6% at age 90 years or older, in comparison with Alzheimer’s disease (23.6%—51%) and combined vascular dementia and Alzheimer’s disease (2%—46.4%). Higher prevalence has been reported in African Americans compared with Caucasians, and in East Asian countries (e.g., Japan, China). Prevalence is higher in males than in females. Major or mild vascular NCD can occur at any age, although the prevalence increases ex- ponentially after age 65 years. In older individuals, additional pathologies may partly ac- count for the neurocognitive deficits. The course may vary from acute onset with partial improvement to stepwise decline to progressive decline, with fluctuations and plateaus of varying durations. Pure subcortical major or mild vascular NCD can have a slowly pro- gressive course that simulates major or mild NCD due to Alzheimer’s disease. Environmental. The neurocognitive outcomes of vascular brain injury are influenced by neuroplasticity factors such as education, physical exercise, and mental activity. Genetic and physiological. The major risk factors for major or mild vascular NCD are the same as those for cerebrovascular disease, including hypertension, diabetes, smoking, obesity, high cholesterol levels, high homocysteine levels, other risk factors for atherosclerosis and ar- teriolosclerosis, atrial fibrillation, and other conditions increasing the risk of cerebral emboli. Cerebral amyloid angiopathy is an important risk factor in which amyloid deposits occur within arterial vessels. Another key risk factor is the hereditary condition cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy, or CADASIL. Structural neuroimaging, using MRI or CT, has an important role in the diagnostic pro- cess. There are no other established biomarkers of major or mild vascular NCD. Major or mild vascular NCD is commonly associated with physical deficits that cause ad- ditional disability. Other neurocognitive disorders. Since incidental brain infarctions and white matter le- sions are common in older individuals, it is important to consider other possible etiologies when an NCD is present. A history of memory deficit early in the course, and progressive worsening of memory, language, executive function, and perceptual-motor abilities in the absence of corresponding focal lesions on brain imaging, are suggestive of Alzheimer’s disease as the primary diagnosis. Potential biomarkers currently being validated for Alz- heimer’s disease, such as cerebrospinal fluid levels of beta-amyloid and phosphorylated tau, and amyloid imaging, may prove to be helpful in the differential diagnosis. NCD with Lewy bodies is distinguished from major or mild vascular NCD by its core features of fluc- tuating cognition, visual hallucinations, and spontaneous parkinsonism. While deficits in executive function and language occur in major or mild vascular NCD, the insidious onset and gradual progression of behavioral features or language impairment are characteristic of frontotemporal NCD and are not typical of vascular etiology. Other medical conditions. A diagnosis of major or mild vascular NCD is not made if other diseases (e.g., brain tumor, multiple sclerosis, encephalitis, toxic or metabolic disor- ders) are present and are of sufficient severity to account for the cognitive impairment. Other mental disorders. A diagnosis of major or mild vascular NCD is inappropriate if the symptoms can be entirely attributed to delirium, although delirium may sometimes be superimposed on a preexisting major or mild vascular NCD, in which case both diagnoses can be made. If the criteria for major depressive disorder are met and the cognitive impair- ment is temporally related to the likely onset of the depression, major or mild vascular NCD should not be diagnosed. However, if the NCD preceded the development of the de- pression, or the severity of the cognitive impairment is out of proportion to the severity of the depression, both should be diagnosed. Major or mild NCD due to Alzheimer’s disease commonly co—occurs with major or mild vascular NCD, in which case both diagnoses should be made. Major or mild vascular NCD and depression frequently co-occur. Due to Traumatic Brain InjuryA. The criteria are met for major or mild neurocognitive disorder. B. There is evidence of a traumatic brain injury—that is, an impact to the head or other mechanisms of rapid movement or displacement of the brain within the skull, with one or more of the following: 1. Loss of consciousness. 2. Posttraumatic amnesia.3. Disorientation and confusion.4. Neurological signs (e.g., neuroimaging demonstrating injury; a new onset of sei- zures; a marked worsening of a preexisting seizure disorder; visual field cuts; an- osmia; hemiparesis). C. The neurocognitive disorder presents immediately after the occurrence of the trau- matic brain injury or immediately after recovery of consciousness and persists past the acute post-injury period. Coding note: For major neurocognitive disorder due to traumatic brain injury, with behavioral disturbance: For |CD-9-CM, first code 907.0 late effect of intracranial injury without skull frac- ture, followed by 294.11 major neurocognitive disorder due to traumatic brain injury, with be- havioral disturbance. For |CD-10-CM, first code $06.2X98 diffuse traumatic brain injury with loss of consciousness of unspecified duration, sequela; followed by F02.81 major neurocog- nitive disorder due to traumatic brain injury, with behavioral disturbance. For major neurocognitive disorder due to traumatic brain injury, without behavioral distur- bance: For |CD-9-CM, first code 907.0 late effect of intracranial injury without skull fracture, followed by 294.10 major neurocognitive disorder due to traumatic brain injury, without be- havioral disturbance. For |CD-10-CM, first code $06.2X9S diffuse traumatic brain injury with loss of consciousness of unspecified duration, sequela; followed by. F02.80 major neurocog- nitive disorder due to traumatic brain injury, without behavioral disturbance. For mild neurocognitive disorder due to traumatic brain injury, code 331.83 (631.84). (Note: Do not use the additional code for traumatic brain injury. Behavioral disturbance cannot be coded but should still be indicated in writing.) Major or Mild Neurocognitive Disorder Due to Traumatic Brain Injury 625 Rate the severity of the neurocognitive disorder (NCD), not the underlying traumatic brain injury (see the section ”Development and Course” for this disorder). Major or mild NCD due to traumatic brain injury (TBI) is caused by an impact to the head, or other mechanisms of rapid movement or displacement of the brain within the skull, as can happen with blast injuries. Traumatic brain injury is defined as brain trauma with spe- cific characteristics that include at least one of the following: loss of consciousness, post— traumatic amnesia, disorientation and confusion, or, in more severe cases, neurological signs (e.g., positive neuroimaging, a new onset of seizures or a marked worsening of a pre- existing seizure disorder, visual field cuts, anosmia, hemiparesis) (Criterion B). To be at- tributable to TBI, the NCD must present either immediately after the brain injury occurs or immediately after the individual recovers consciousness after the injury and persist past the acute post-injury period (Criterion C). The cognitive presentation is variable. Difficulties in the domains of complex attention, executive ability, learning, and memory are common as well as slowing in speed of infor- mation processing and disturbances in social cognition. In more severe TBI in which there is brain contusion, intracranial hemorrhage, or penetrating injury, there may be additional neurocognitive deficits, such as aphasia, neglect, and constructional dyspraxia. Major or mild NCD due to TBI may be accompanied by disturbances in emotional function (e.g., irritability, easy frustration, tension and anxiety, affective lability); personality changes (e.g., disinhibition, apathy, suspiciousness, aggression); physical disturbances (e.g., headache, fatigue, sleep disorders, vertigo or dizziness, tinnitus or hyperacusis, pho- tosensitivity, anosmia, reduced tolerance to psychotropic medications); and, particularly in more severe TBI, neurological symptoms and signs (e.g., seizures, hemiparesis, visual disturbances, cranial nerve deficits) and evidence of orthopedic injuries. In the United States, 1.7 million TBIs occur annually, resulting in 1.4 million emergency de- partment visits, 275,000 hospitalizations, and 52,000 deaths. About 2% of the population lives with TBI-associated disability. Males account for 59% of TBIs in the United States. The most common etiologies of TBI in the United States are falls, vehicular accidents, and being struck on the head. Collisions and blows to the head that occur in the course of con- tact sports are increasingly recognized as sources of mild TBI, with a concern that repeated mild TBI may have cumulatively persisting sequelae. The severity of a TBI is rated at the time of injury/initial assessment as mild, moderate, or severe according to the thresholds in Table 2. The severity rating of the TBI itself does not necessarily correspond to the severity of the resulting NCD. The course of recovery from TBI is variable, depending not only on the specifics of the injury but also on cofactors, such as age, prior history of brain damage, or substance abuse, that may favor or impede recovery. Loss of consciousness <30 min 30 minutes—24 hours >24 hours Neurobehavioral symptoms tend to be most severe in the immediate aftermath of the TBI. Except in the case of severe TBI, the typical course is that of complete or substantial improvement in associated neurocognitive, neurological, and psychiatric symptoms and signs. Neurocognitive symptoms associated with mild TBI tend to resolve within days to weeks after the injury with complete resolution typical by 3 months. Other symptoms that may potentially co-occur with the neurological symptoms (e.g., depression, irritability, fatigue, headache, photosensitivity, sleep disturbance) also tend to resolve in the weeks following mild TBI. Substantial subsequent deterioration in these areas should trigger con- sideration of additional diagnoses. However, repeated mild TBI may be associated with persisting neurocognitive disturbance. With moderate and severe TBI, in addition to persistence of neurocognitive deficits, there may be associated neurophysiological, emotional, and behavioral complications. These include seizures (particularly in the first year), photosensitivity, hyperacusis, irritabil- ity, aggression, depression, sleep disturbance, fatigue, apathy, inability to resume occu- pational and social functioning at pre-injury level, and deterioration in interpersonal relationships. Moderate and severe TBI have been associated with increased risk of depres- sion, aggression, and possibly neurodegenerative diseases such as Alzheimer’s disease. The features of persisting major or mild NCD due to TBI will vary by age, specifics of the injury, and cofactors. Persisting TBI-related impairment in an infant or child may be re- flected in delays in reaching developmental milestones (e.g., language acquisition), worse academic performance, and possibly impaired social development. Among older teenag- ers and adults, persisting symptoms may include various neurocognitive deficits, irrita- bility, hypersensitivity to light and sound, easy fatigability, and mood changes, including depression, anxiety, hostility, or apathy. In older individuals with depleted cognitive re- serve, mild TBI is more likely to result in incomplete recoveries. Risk factors for traumatic brain injury. Traumatic brain injury rates vary by age, with the highest prevalence among individuals younger than 4 years, older adolescents, and in- dividuals older than 65 years. Falls are the most common cause of TBI, with motor vehicle accidents being second. Sports concussions are frequent causes of TBI in older children, teenagers, and young adults. Risk factors for neurocognitive disorder after traumatic brain injury. Repeated con- cussions can lead to persistent NCD and neuropathological evidence of traumatic enceph- alopathy. Co-occurring intoxication with a substance may increase the severity of a TBI from a motor vehicle accident, but whether intoxication at the time of injury worsens neu- rocognitive outcome is unknown. Course modifiers. Mild TBI generally resolves within a few weeks to months, although res- olution may be delayed or incomplete in the context of repeated TBI. Worse outcome from moderate to severe TBI is associated with older age (older than 40 years) and initial clinical pa- rameters, such as low Glasgow Coma Scale score; worse motor function; pupillary nonreac- tivity; and computed tomography (CT) evidence of brain injury (e.g., petechial hemorrhages, subarachnoid hemorrhage, midline shift, obliteration of third ventricle). Beyond neuropsychological testing, CT scanning may reveal petechial hemorrhages, subarachnoid hemorrhage, or evidence of contusion. Magnetic resonance image scanning may also reveal hyperintensities suggestive of microhemorrhages. Functionai Consequences of Major or MiidNeurocognitive Disorder Due to Traumatic Brain InjuryWith mild NCD due to TBI, individuals may report reduced cognitive efficiency, difficulty concentrating, and lessened ability to perform usual activities. With major NCD due to TBI, an individual may have difficulty in independent living and self—care. Prominent neuromotor features, such as severe incoordination, ataxia, and motor slowing, may be present in major NCD due to TBI and may add to functional difficulties. Individuals with TBI histories report more depressive symptoms, and these can amplify cognitive complaints and worsen func- tional outcome. Additionally, loss of emotional control, including aggressive or inappropriate affect and apathy, may be present after more severe TBI with greater neurocognitive impair- ment. These features may compound difficulties with independent living and self-care. In some instances, severity of neurocognitive symptoms may appear to be inconsistent with the severity of the TBI. After previously undetected neurological complications (e.g., chronic hematoma) are excluded, the possibility of diagnoses such as somatic symptom disorder or factitious disorder need to be considered. Posttraumatic stress disorder (PTSD) can co-occur with the NCD and have overlapping symptoms (e.g., difficulty concentrat- ing, depressed mood, aggressive behavioral disinhibition). Among individuals with substance use disorders, the neurocognitive effects of the sub- stance contribute to or compound the TBI-associated neurocognitive change. Some symp- toms associated with TBI may overlap with symptoms found in cases of PTSD, and the two disorders may co-occur, especially in military populations. A. The criteria are met for major or mild neurocognitive disorder. B. The neurocognitive impairments do not occur exclusively during the course of a delir- ium and persist beyond the usual duration of intoxication and acute withdrawal. C. The involved substance or medication and duration and extent of use are capable of producing the neurocognitive impairment. D. The temporal course of the neurocognitive deficits is consistent with the timing of sub- stance or medication use and abstinence (e.g., the deficits remain stable or improve after a period of abstinence). E. The neurocognitive disorder is not attributable to another medical condition or is not better explained by another mental disorder. Coding note: The lCD-9-CM and lCD-10-CM codes for the [specific substance/medica- tion]-induced neurocognitive disorders are indicated in the table below. Note that the ICD- 10-CM code depends on whether or not there is a comorbid substance use disorder present for the same class of substance. If a mild substance use disorder is comorbid with the sub- stance-induced neurocognitive disorder, the 4th position character is "1," and the clinician should record “mild [substance] use disorder” before the substance-induced neurocognitive disorder (e.g., “mild inhalant use disorder with inhalant-induced major neurocognitive disor- der"). If a moderate or severe substance use disorder is comorbid with the substance- induced neurocognitive disorder. the 4th position character is “2" and the clinician should record “moderate [substance] use disordel” or “severe [substance] use disorder,” depending on the severity of the comorbid substance use disorder. If there is no comorbid substance use disorder, then the 4th position character is “9" and the clinician should record only the substance-induced neurocognitive disorder. For some classes of substances (i.e., alcohol; sedatives, hypnotics, anxiolytics), it is not permissible to code a comorbid mild substance use disorder with a substance-induced neurocognitive disorder; only a comorbid moderate or severe substance use disorder, or no substance use disorder, can be diagnosed. Behav- ioral disturbance cannot be coded but should still be indicated in writing. With use disorder, disorder, moderateor Without useAlcohol (major neurocognitive 291.2 NA F1027 F1097 disorder), nonamnestic-Alcohol (major neurocognitive 291.1 NA F1026 F1096 disorder), amnestic-Alcohol (mild neurocognitive 291.89 NA F10.288 F10.988Inhalant (major neurocognitive 292.82 F1817 F1827 F1897Inhalant (mild neurocognitive 292.89 F18.1BB F18.288 F18.988Sedative, hypnotic, or anxiolytic 292.82 NA F1327 F1397Sedative, hypnotic, or anxiolytic 292.89 NA F13.288 F13.988Other (or unknown) substance 292.82 F1917 F1927 F1997Other (or unknown) substance 292.89 F19.188 F19.288 F19.988Specify if:PersistentaNeurocognitive impairment continues to be significant after an extended period of abstinence. |CD-9-CM. The name of the substance/medication-induced neurocognitive disorder be- gins with the specific substance/medication (e.g., alcohol) that is presumed to be causing the neurocognitive symptoms. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class. For substances that do not fit into any of the classes, the code for “other substance” should be used; and in cases in which a substance is judged to be an etiological factor but the specific class of substance is unknown, the cat— egory ”unknown substance” should be used. The name of the disorder (i.e., [specific substance]-induced major neurocognitive dis- order or [specific substance]-induced mild neurocognitive disorder) is followed by the type in the case of alcohol (i.e., nonamnestic-confabulatory type, amnestic-confabulatory type), followed by specification of duration (i.e., persistent). Unlike the recording procedures for ICD-IO-CM, which combine the substance/medication-induced disorder and sub- stance use disorder into a single code, for ICD-9-CM a separate diagnostic code is given for the substance use disorder. For example, in the case of persistent amnestic-confabulatory symptoms in a man with a severe alcohol use disorder, the diagnosis is 291.1 alcohol- induced major neurocognitive disorder, amnestic-confabulatory type, persistent. An addi- tional diagnosis of 303.90 severe alcohol use disorder is also given. If the substance/medi- (e.g., after a sporadic heavy use of inhalants), no accompanying substance use disorder is noted (e.g., 292.82 inhalant-induced mild neurocognitive disorder). lCD-10-CM. The name of the substance/medication-induced neurocognitive disorder begins with the specific substance (e.g., alcohol) that is presumed to be causing the neuro- cognitive symptoms. The diagnostic code is selected from the table included in the criteria set, which is based on the drug class and presence or absence of a comorbid substance use disorder. For substances that do not fit into any of the classes, the code for ”other sub- stance” should be used; and in cases in which a substance is judged to be an etiological fac- tor but the specific class of substance is unknown, the category "unknown substance" should be used. When recording the name of the disorder, the comorbid substance use disorder (if any) is listed first, followed by the word "with,” followed by the name of the disorder (i.e., [specific neurocognitive disorder), followed by the type in the case of alcohol (i.e., nonamnestic-con- fabulatory type, amnestic-confabulatory type), followed by specification of duration (i.e., persistent). For example, in the case of persistent amnestic-confabulatory symptoms in a man with a severe alcohol use disorder, the diagnosis is F1026 severe alcohol use disorder with alcohol-induced major neurocognitive disorder, amnestic-confabulatory type, persis- tent. A separate diagnosis of the comorbid severe alcohol use disorder is not given. If the order (e.g., after a sporadic heavy use of inhalants), no accompanying substance use disor- der is noted (e.g., F18.988 inhalant-induced mild neurocognitive disorder). Substance/ medication-induced major or mild NCD is characterized by neurocognitive impairments that persist beyond the usual duration of intoxication and acute withdrawal (Criterion B). Initially, these manifestations can reflect slow recovery of brain functions from a period of prolonged substance use, and improvements in neurocognitive as well as brain imaging indicators may be seen over many months. If the disorder continues for an extended period, persistent should be specified. The given substance and its use must be known to be capable of causing the observed impairments (Criterion C). While nonspecific decrements in a range of cognitive abilities can occur with nearly any substance of abuse and a variety of medications, some patterns occur more frequently with selected drug classes. For example, NCD due to sedative, hypnotic, or anxiolytic drugs (e.g., benzodiaz- epines, barbiturates) may show greater disturbances in memory than in other cognitive functions. NCD induced by alcohol frequently manifests with a combination of impair- ments in executive-function and memory and learning domains. The temporal course of the substance-induced NCD must be consistent with that of use of the given substance (Criterion D). In alcohol-induced amnestic confabulatory (Korsakoff’s) NCD, the features include prominent amnesia (severe difficulty learning new information with rapid forget- ting) and a tendency to confabulate. These manifestations may co—occur with signs of thi- amine encephalopathy (Wernicke’s encephalopathy) with associated features such as nystagmus and ataxia. Ophthalmoplegia of Wernicke’s encephalopathy is typically charac- terized by a lateral gaze paralysis. In addition to or independent of the more common neurocognitive symptoms related to methamphetamine use (e.g., difficulties with learning and memory; executive func- tion), methamphetamine use can also be associated with evidence of vascular injury (e.g., focal weakness, unilateral incoordination, asymmetrical reflexes). The most common neu- rocognitive profile approximates that seen in vascular NCD. Intermediate-duration NCD induced by drugs with central nervous system depressant effects may manifest with added symptoms of increased irritability, anxiety, sleep disturbance, and dysphoria. Intermediate-duration NCD induced by stimulant drugs may manifest with re- bound depression, hypersomnia, and apathy. In severe forms of substance/medication— induced major NCD (e.g., associated with long-term alcohol use), there may be prominent neuromotor features, such as incoordination, ataxia, and motor slowing. There may also be loss of emotional control, including aggressive or inappropriate affect, or apathy. The prevalence of these conditions is not known. Prevalence figures for substance abuse are available, and substance/medication—induced major or mild NCDs are more likely in those who are older, have longer use, and have other risk factors such as nutritional deficits. For alcohol abuse, the rate of mild NCD of intermediate duration is approximately 30%— 40% in the first 2 months of abstinence. Mild NCD may persist, particularly in those who do not achieve stable abstinence until after age 50 years. Major NCD is rare and may result from concomitant nutritional deficits, as in alcohol—induced amnestic confabulatory NCD. For individuals quitting cocaine, methamphetamine, opioids, phencyclidine, and sed- ative, hypnotics, or anxiolytics, substance / medication-induced mild NCD of intermediate duration may occur in one-third or more, and there is some evidence that these substances may also be associated with persistent mild NCD. Major NCD associated with these sub- stances is rare, if it occurs at all. In the case of methamphetamine, cerebrovascular disease can also occur, resulting in diffuse or focal brain injury that can be of mild or major neu- rocognitive levels. Solvent exposure has been linked to both major and mild NCD of both intermediate and persistent duration. The presence of NCD induced by cannabis and various hallucinogens is controversial. With cannabis, intoxication is accompanied by various neurocognitive disturbances, but these tend to clear with abstinence. Substance use disorders tend to commence during adolescence and peak in the 205 and 30s. Although longer history of severe substance use disorder is associated with greater likelihood of NCD, the relationships are not straightforward, with substantial and even complete recovery of neurocognitive functions being common among individuals who achieve stable abstinence prior to age 50 years. Substance/medication—induced major or mild NCD is most likely to become persistent in individuals who continue abuse of sub- stances past age 50 years, presumably because of a combination of lessened neural plas- ticity and beginnings of other age-related brain changes. Earlier commencement of abuse, particularly of alcohol, may lead to defects in later neural development (e.g., later stages of maturation of frontal circuitries), which may have effects on social cognition as well as other neurocognitive abilities. For alcohol-induced NCD, there may be an additive effect of aging and alcohol-induced brain injury. Risk factors for substance/medication—induced NCDs include older age, longer use, and persistent use past age 50 years. In addition, for alcohol—induced NCD, long-term nutri— tional deficiencies, liver disease, vascular risk factors, and cardiovascular and cerebrovas- cular disease may contribute to risk. Magnetic resonance imaging (MRI) of individuals with chronic alcohol abuse frequently reveals cortical thinning, white matter loss, and enlargement of sulci and ventricles. While neuroimaging abnormalities are more common in those with NCDs, it is possible to ob- serve NCDs without neuroimaging abnormalities, and vice versa. Specialized techniques (e.g., diffusion tensor imaging) may reveal damage to specific white matter tracts. Mag- netic resonance spectroscopy may reveal reduction in N-acetylaspartate, and increase in markers of inflammation (e.g., myoinositol) or white matter injury (e.g., choline). Many of cessful abstinence. In individuals with methamphetamine use disorder, MRI may also re— veal hyperintensities suggestive of microhemorrhages or larger areas of infarction. Functional Consequences of SubstancelMedication-The functional consequences of substance/medication—induced mild NCD are sometimes in many other NCDs. In addition, at both major and mild levels, substance/medication- induced NCDs may have associated motor syndromes that increase the level of functional impairment. Individuals with substance use disorders, substance intoxication, and substance withdrawal are at increased risk for other conditions that may independently, or through a compounding effect, result in neurocognitive disturbance. These include history of traumatic brain injury and infections that can accompany substance use disorder (e.g., HIV, hepatitis C virus, syph- ilis). Therefore, presence of substance/medication—induced major or mild NCD should be differentiated from NCDs arising outside the context of substance use, intoxication, and with- drawal, including these accompanying conditions (e.g., traumatic brain injury). Substance use disorders, substance intoxication, and substance withdrawal are highly co- morbid with other mental disorders. Comorbid posttraumatic stress disorder, psychotic disorders, depressive and bipolar disorders, and neurodevelopmental disorders can con- tribute to neurocognitive impairment in substance users. Traumatic brain injury occurs more frequently with substance use, complicating efforts to determine the etiology of NCD in such cases. Severe, long-term alcohol use disorder can be associated with major organ system disease, including cerebrovascular disease and cirrhosis. Amphetamine-induced NCD may be accompanied by major or mild vascular NCD, also secondary to amphet- amine use. Due to HIV InfectionA. The criteria are met for major or mild neurocognitive disorder. B. There is documented infection with human immunodeficiency virus (HIV). C. The neurocognitive disorder is not better explained by non-HIV conditions, including secondary brain diseases such as progressive multifocal leukoencephalopathy or cryptococcal meningitis. D. The neurocognitive disorder is not attributable to another medical condition and is not better explained by a mental disorder. Coding note: For major neurocognitive disorder due to HIV infection, with behavioral dis- turbance, code first 042 (320) HIV infection, followed by 294.11 (F02.81) major neurocog- nitive disorder due to HIV infection, with behavioral disturbance. For major neurocognitive disorder due to HIV infection, without behavioral disturbance, code first 042 (320) HIV in- fection, followed by 294.10 (F02.80) major neurocognitive disorder due to HIV infection, without behavioral disturbance. For mild neurocognitive disorder due to HIV infection, code 331.83 (631.84). (Note: Do not use the additional code for HIV infection. Behavioral disturbance cannot be coded but should still be indicated in writing.) HIV disease is caused by infection with human immunodeficiency Virus type-l (HIV—l), which is acquired through exposure to bodily fluids of an infected person through injection drug use, unprotected sexual contact, or accidental or iatrogenic exposure (e.g., contami- nated blood supply, needle puncture injury to medical personnel). HIV infects several types of cells, most particularly immune cells. Over time, the infection can cause severe depletion of ”T-helper” (CD4) lymphocytes, resulting in severe immunocompromise, often leading to opportunistic infections and neoplasms. This advanced form of HIV infection is termed acquired immune deficiency syndrome (AIDS). Diagnosis of HIV is confirmed by established laboratory methods such as enzyme-linked immunosorbent assay for HIV antibody with Western blot confirmation and/ or polymerase chain reaction—based assays for HIV. Some individuals with HIV infection develop an NCD, which generally shows a ”sub- cortical pattern” with prominently impaired executive function, slowing of processing speed, problems with more demanding attentional tasks, and difficulty in learning new information, but fewer problems with recall of learned information. In major NCD, slow- ing may be prominent. Language difficulties, such as aphasia, are uncommon, although reductions in fluency may be observed. HIV pathogenic processes can affect any part of the brain; therefore, other patterns are possible. Major or Mild Neurocognitive Disorder Due to HIV Infection 633 Major or mild NCD due to HIV infection is usually more prevalent in individuals with prior episodes of severe immunosuppression, high viral loads in the cerebrospinal fluid, and indicators of advanced HIV disease such as anemia and hypoalbuminemia. Individ- uals with advanced NCD may experience prominent neuromotor features such as severe incoordination, ataxia, and motor slowing. There may be loss of emotional control, includ- ing aggressive or inappropriate affect or apathy. Depending on stage of HIV disease, approximately one-third to over one-half of HIV- infected individuals have at least mild neurocognitive disturbance, but some of these dis- turbances may not meet the full criteria for mild NCD. An estimated 25% of individuals with HIV will have signs and symptoms that meet criteria for mild NCD, and in fewer than 5% would criteria for major NCD be met. An NCD due to HIV infection can resolve, improve, slowly worsen, or have a fluctuating course. Rapid progression to profound neurocognitive impairment is uncommon in the context of currently available combination antiviral treatment; consequently, an abrupt change in mental status in an individual with HIV may prompt an evaluation of other medical sources for the cognitive change, including secondary infections. Because HIV in- fection preferentially affects subcortical regions over the course of illness, including deep white matter, the progression of the disorder follows a ”subcortical” pattern. Since HIV can affect a variety of brain regions, and the illness can take on many different trajectories depending on associated comorbidities and consequences of HIV, the overall course of an NCD due to HIV infection has considerable heterogeneity. A subcortical neurocognitive profile may interact with age over the life course, when psychomotor slowing and motor impairments such as slowed gait may occur as a consequence of other age-related condi- tions so that the overall progression may appear more pronounced in later life. In developed countries, HIV disease is primarily a condition of adults, with acquisition via risky behaviors (e.g., unprotected sex, injection drug use) beginning in late adolescence and peaking during young and middle adulthood. In developing countries, particularly sub-Saharan Africa, where HIV testing and antiretroviral treatments for pregnant women are not readily available, perinatal transmission is common. The NCD in such infants and children may present primarily as neurodevelopmental delay. As individuals treated for HIV survive into older age, additive and interactive neurocognitive effects of HIV and aging, including other NCDs (e.g., due to Alzheimer’s disease, due to Parkinson’s dis- ease), are possible. Risk and prognostic factors for HIV infection. Risk factors for HIV infection include injec- tion drug use, unprotected sex, and unprotected blood supply and other iatrogenic factors. Risk and prognostic factors for major or mild neurocognitive disorder due to HIV in- fection. Paradoxically, NCD due to HIV infection has not declined significantly with the advent of combined antiretroviral therapy, although the most severe presentations (con- sistent with the diagnosis of major NCD) have decreased sharply. Contributory factors may include inadequate control of HIV in the central nervous System (CNS), the evolution of drug-resistant viral strains, the effects of chronic long-term systemic and brain inflam- mation, and the effects of comorbid factors such as aging, drug abuse, past history of CNS trauma, and co-infections, such as with the hepatitis C virus. Chronic exposure to antiret- roviral drugs also raises the possibility of neurotoxicity, although this has not been defin- itively established. Serum HIV testing is required for the diagnosis. In addition, HIV characterization of the cere- fluid versus in the plasma. Neuroimaging (i.e., magnetic resonance imaging [MRI]) may reveal reduction in total brain volume, cortical thinning, reduction in white matter volume, and patchy areas of abnormal white matter (hyperintensities). MRI or lumbar puncture may be helpful to exclude a specific medical condition such as cryptococcus infection or herpes en- cephalitis that may contribute to CNS changes in the context of AIDS. Specialized techniques such as diffusion tensor imaging may reveal damage to specific white matter tracts. Functional Consequences of Major or MildNeurocognitive Disorder Due to HIV InfectionFunctional consequences of major or mild NCD due to HIV infection are variable across individuals. Thus, impaired executive abilities and slowed information processing may substantially interfere with the complex disease management decisions required for ad- herence to the combined antiretroviral therapy regimen. The likelihood of comorbid dis- ease may further create functional challenges. In the presence of comorbidities, such as other infections (e.g., hepatitis C virus, syphilis), drug abuse (e.g., methamphetamine abuse), or prior head injury or neurodevelopmental conditions, major or mild NCD due to HIV infection can be diagnosed provided there is ev- idence that infection with HIV has worsened any N CDs due to such preexisting or comorbid conditions. Among older adults, onset of neurocognitive decline related to cerebrovascular disease or neurodegeneration (e.g., major or mild NCD due to Alzheimer’s disease) may need to be differentiated. In general, stable, fluctuating (without progression) or improving neurocognitive status would favor an HIV etiology, whereas steady or stepwise deter- ioration would suggest neurodegenerative or vascular etiology. Because more severe im- munodeficiency can result in opportunistic infections of the brain (e.g., toxoplasmosis; cryptococcosis) and neoplasia (e.g., CNS lymphoma), sudden onset of an NCD or sudden worsening of that disorder demands active investigation of non-HIV etiologies. HIV disease is accompanied by chronic systemic and neuro-inflammation that can be as- sociated with cerebrovascular disease and metabolic syndrome. These complications can be part of the pathogenesis of major or mild NCD due to HIV infection. HIV frequently co- occurs with conditions such as substance use disorders when the substance has been in- jected and other sexually transmitted disorders. Due to Prion DiseaseA. The criteria are met for major or mild neurocognitive disorder. B. There is insidious onset, and rapid progression of impairment is common. C. There are motor features of prion disease, such as myoclonus or ataxia, or biomarker evidence. Major or Mild Neurocognitive Disorder Due to Prion Disease 635 D. The neurocognitive disorder is not attributable to another medical condition and is not better explained by another mental disorder. Coding note: For major neurocognitive disorder due to prion disease, with behavioral dis- turbance, code first 046.79 (A81.9) prion disease, followed by 294.11 (F02.81) major neurocognitive disorder due to prion disease, with behavioral disturbance. For major neu- rocognitive disorder due to prion disease, without behavioral disturbance, code first 046.79 (A81.9) prion disease. followed by 294.10 (F02.80) major neurocognitive disorder due to prion disease, without behavioral disturbance. For mild neurocognitive disorder due to prion disease, code 331.83 (631.84). (Note: Do not use the additional code for prion disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) The classification of major or mild neurocognitive disorder (NCD) due to prion disease in- cludes NCDs due to a group of subacute spongiform encephalopathies (including Creutz- feldt-Jakob disease, variant Creutzfeldt-Jakob disease, kuru, Gerstmann-Straussler- Scheinker syndrome, and fatal insomnia) caused by transmissible agents known as prions. The most common type is sporadic Creutzfeldt-Iakob disease, typically referred to as Creutzfeldt-Jakob disease (CID). Variant CID is much rarer and is associated with trans- mission of bovine spongiform encephalopathy, also called "mad cow disease." Typically, individuals with CID present with neurocognitive deficits, ataxia, and abnormal move- ments such as myoclonus, chorea, or dystonia; a startle reflex is also common. Typically, the history reveals rapid progression to major NCD over as little as 6 months, and thus the disorder is typically seen only at the major level. However, many individuals with the dis- order may have atypical presentations, and the disease can be confirmed only by biopsy or at autopsy. Individuals with variant CID may present with a greater preponderance of psychiatric symptoms, characterized a by low mood, withdrawal, and anxiety. Prion dis- ease is typically not diagnosed without at least one of the characteristic biomarker fea- tures: recognized lesions on magnetic resonance imaging with DWI (diffusion-weighted imaging) or FLAIR (fluid-attenuated inversion recovery), tau or 14-3-3 protein in cerebro- spinal fluid, characteristic triphasic waves on electroencephalogram, or, for rare familial forms, family history or genetic testing. The annual incidence of sporadic CID is approximately one or two cases per million peo- ple. Prevalence is unknown but very low given the short survival. Prion disease may develop at any age in adults—the peak age for the sporadic CID is ap- proximately 67 years—although it has been reported to occur in individuals spanning the teenage years to late life. Prodromal symptoms of prion disease may include fatigue, anx- iety, problems with appetite or sleeping, or difficulties with concentration. After several weeks, these symptoms may be followed by incoordination, altered vision, or abnormal gait or other movements that may be myoclonic, choreoathetoid, or ballistic, along with a rapidly progressive dementia. The disease typically progresses very rapidly to the major level of impairment over several months. More rarely, it can progress over 2 years and ap- pear similar in its course to other NCDs. Environmental. Cross-species transmission of prion infections, with agents that are closely related to the human form, has been demonstrated (e.g., the outbreak of bovine spongiform encephalopathy inducing variant CID in the United Kingdom during the mid- 19905). Transmission by corneal transplantation and by human growth factor injection has been documented, and anecdotal cases of transmission to health care workers have been reported. Genetic and physiological. There is a genetic component in up to 15% of cases, associ- ated with an autosomal dominant mutation. Prion disease can be definitively confirmed only by biopsy or at autopsy. Although there are no distinctive findings on cerebrospinal fluid analysis across the prion diseases, reliable bio- markers are being developed and include 14-3-3 protein (particularly for sporadic CID) as well as tau protein. Magnetic resonance brain imaging is currently considered the most sen- sitive diagnostic test when DWI is performed, with the most common finding being multi~ focal gray matter hyperintensities in subcortical and cortical regions. In some individuals, the electroencephalogram reveals periodic sharp, often triphasic and synchronous dis- charges at a rate of 0.5—2 Hz at some point during the course of the disorder. Other major neurocognitive disorders. Major NCD clue to prion disease may appear similar in its course to other NCDs, but prion diseases are typically distinguished by their rapid progression and prominent cerebellar and motor symptoms. Due to Parkinson’s DiseaseThe criteria are met for major or mild neurocognitive disorder. The disturbance occurs in the setting of established Parkinson's disease. . There is insidious onset and gradual progression of impairment. . The neurocognitive disorder is not attributable to another medical condition and is not better explained by another mental disorder. Major or mild neurocognitive disorder probably due to Parkinson’s disease should be diagnosed if 1 and 2 are both met. Major or miid neurocognitive disorder possibly due to Parkinson’s disease should be diagnosed if 1 or 2 is met: 1. There is no evidence of mixed etiology (i.e., absence of other neurodegenerative or cerebrovascular disease or another neurological, mental, or systemic disease or con- dition likely contributing to cognitive decline). 2. The Parkinson’s disease clearly precedes the onset of the neurocognitive disorder. Coding note: For major neurocognitive disorder probably due to Parkinson’s disease, with behavioral disturbance, code first 332.0 (620) Parkinson’s disease, followed by 294.11 (F02.81) major neurocognitive disorder probably due to Parkinson’s disease, with behavioral disturbance. For major neurocognitive disorder probably due to Parkinson’s disease, without behavioral disturbance, code first 332.0 (620) Parkinson’s disease, fol- Major or Mild Neurocognitive Disorder Due to Parkinson's Disease 637 lowed by 294.10 (F02.80) major neurocognitive disorder probably due to Parkinson’s dis- ease, without behavioral disturbance. For major neurocognitive disorder possibly due to Parkinson’s disease, code 331.9 (631.9) major neurocognitive disorder possibly due to Parkinson’s disease. (Note: Do not use the additional code for Parkinson's disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) For mild neurocognitive disorder due to Parkinson's disease, code 331.83 (631.84). (Note: Do not use the additional code for Parkinson’s disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) The essential feature of major or mild neurocognitive disorder (NCD) due to Parkinson’s disease is cognitive decline following the onset of Parkinson’s disease. The disturbance must occur in the setting of established Parkinson’s disease (Criterion B), and deficits must have developed gradually (Criterion C). The NCD is viewed as probably due to Parkinson’s disease when there is no evidence of another disorder that might be contributing to the cognitive decline and when the Parkinson’s disease clearly precedes onset of the NCD. The NCD is considered possibly due to Parkinson’s disease either when there is no evidence of another disorder that might be contributing to the cognitive decline or when the Parkin- son’s disease precedes onset of the NCD, but not both. Frequently present features include apathy, depressed mood, anxious mood, hallucina- tions, delusions, personality changes, rapid eye movement sleep behavior disorder, and excessive daytime sleepiness. The prevalence of Parkinson’s disease in the United States steadily increases with age from approximately 0.5% between ages 65 and 69 to 3% at age 85 years and older. Parkinson’s disease is more common in males than in females. Among individuals with Parkinson’s disease, as many as 75% will develop a major NCD sometime in the course of their disease. The prevalence of mild NCD in Parkinson’s disease has been estimated at 27%. Onset of Parkinson’s disease is typically between the sixth and ninth decades of life, with most expression in the early 605. Mild NCD often develops relatively early in the course of Parkinson’s disease, whereas major impairment typically does not occur until late. Environmental. Risk factors for Parkinson’s disease include exposure to herbicides and pesticides. Genetic and physiological. Potential risk factors for NCD among individuals with Par— kinson’s disease include older age at disease onset and increasing duration of disease. Neuropsychological testing, with a focus on tests that do not rely on motor function, is crit- ical in detecting the core cognitive deficits, particularly at the mild NCD phase. Structural neuroimaging and dopamine transporter scans, such as DaT scans, may differentiate Lewy body—related dementias (Parkinson’s and dementia with Lewy bodies) from non— Lewy body—related dementias (e.g., Alzheimer’s disease) and can sometimes be helpful in the evaluation of major or mild NCD due to Parkinson’s disease. Major or mild neurocognitive disorder with Lewy bodies. This distinction is based sub- stantially on the timing and sequence of motor and cognitive symptoms. For NCD to be at- tributed to Parkinson’s disease, the motor and other symptoms of Parkinson’s disease must be present well before (by convention, at least 1 year prior) cognitive decline has reached the level of major NCD, whereas in major or mild NCD with Lewy bodies, cognitive symp- toms begin shortly before, or concurrent with, motor symptoms. For mild NCD, the timing is harder to establish because the diagnosis itself is less clear and the two disorders exist on a continuum. Unless Parkinson’s disease has been established for some time prior to the onset of cognitive decline, or typical features of major or mild NCD with Lewy bodies are present, it is preferable to diagnose unspecified mild NCD. Major or mild neurocognitive disorder due to Alzheimer’s disease. The motor features are the key to distinguishing major or mild NCD due to Parkinson’s disease from major or mild NCD due to Alzheimer’s disease. However, the two disorders can co-occur. Major or mild vascular neurocognitive disorder. Major or mild vascular NCD may pre- sent with parkinsonian features such as psychomotor slowing that may occur as a conse- quence of subcortical small vessel disease. However, the parkinsonian features typically are not sufficient for a diagnosis of Parkinson’s disease, and the course of the NCD usually has a clear association with cerebrovascular changes. Neurocognitive disorder due to another medical condition (e.g., neurodegenerative disorders). When a diagnosis of major or mild NCD due to Parkinson’s disease is being considered, the distinction must also be made from other brain disorders, such as progres- sive supranuclear palsy, corticobasal degeneration, multiple system atrophy, tumors, and hydrocephalus. Neuroleptic-induced parkinsonism. Neuroleptic-induced parkinsonism can occur in individuals with other NCDs, particularly when dopamine-blocking drugs are prescribed for the behavioral manifestations of such disorders Other medical conditions. Delirium and NCDs due to side effects of dopamine-blocking drugs and other medical conditions (e.g., sedation or impaired cognition, severe hypothy- roidism, B12 deficiency) must also be ruled out. Parkinson’s disease may coexist with Alzheimer’s disease and cerebrovascular disease, espe- cially in older individuals. The compounding of multiple pathological features may diminish the functional abilities of individuals with Parkinson’s disease. Motor symptoms and frequent co—occurrence of depression or apathy can make functional impairment worse. Due to Huntington’s DiseaseA. The criteria are met for major or mild neurocognitive disorder. B. There is insidious onset and gradual progression.C. There is clinically established Huntington‘s disease, or risk for Huntington’s disease based on family history or genetic testing. Major or Mild Neurocognitive Disorder Due to Huntington’s Disease 639 D. The neurocognitive disorder is not attributable to another medical condition and is not better explained by another mental disorder. Coding note: For major neurocognitive disorder due to Huntington’s disease, with behav- ioral disturbance, code first 333.4 (610) Huntington’s disease, followed by 294.11 (F02.81) major neurocognitive disorder due to Huntington’s disease, with behavioral dis- turbance. For major neurocognitive disorder due to Huntington’s disease, without behav- ioral disturbance, code first 333.4 (610) Huntington's disease, followed by 294.10 (F02.80) major neurocognitive disorder due to Huntington’s disease, without behavioral disturbance. For mild neurocognitive disorder due to Huntington’s disease, code 331.83 (631.84). (Note: Do not use the additional code for Huntington's disease. Behavioral disturbance cannot be coded but should still be indicated in writing.) Progressive cognitive impairment is a core feature of Huntington’s disease, with early changes in executive function (i.e., processing speed, organization, and planning) rather than leam- ing and memory. Cognitive and associated behavioral changes often precede the emergence of the typical motor abnormalities of bradykinesia (i.e., slowing of voluntary movement) and chorea (i.e., involuntary jerking movements). A diagnosis of definite Huntington’s dis- ease is given in the presence of unequivocal, extrapyramidal motor abnormalities in an in- dividual with either a family history of Huntington’s disease or genetic testing showing a CAG trinucleotide repeat expansion in the HTT gene, located on chromosome 4. Depression, irritability, anxiety, obsessive-compulsive symptoms, and apathy are fre- quently, and psychosis more rarely, associated with Huntington’s disease and often pre- cede the onset of motor symptoms. Neurocognitive deficits are an eventual outcome of Huntington’s disease; the worldwide prevalence is estimated to be 2.7 per 100,000. The prevalence of Huntington’s disease in North America, Europe, and Australia is 5.7 per 100,000, with a much lower prevalence of 0.40 per 100,000 in Asia. The average age at diagnosis of Huntington’s disease is approximately 40 years, although this varies widely. Age at onset is inversely correlated with CAG expansion length. Juve- nile Huntington’s disease (onset before age 20) may present more commonly with brady- kinesia, dystonia, and rigidity than with the choreic movements characteristic of the adult- onset disorder. The disease is gradually progressive, with median survival approximately 15 years after motor symptom diagnosis. Phenotypic expression of Huntington’s disease varies by presence of motor, cognitive, and psychiatric symptoms. Psychiatric and cognitive abnormalities can predate the motor abnormality by at least 15 years. Initial symptoms requiring care often include irritabity, anxiety, or depressed mood. Other behavioral disturbances may include pronounced ap- athy, disinhibition, impulsivity, and impaired insight, with apathy often becoming more progressive over time. Early movement symptoms may involve the appearance of fidget- iness of the extremities as well as mild apmxia (i.e., difficulty with purposeful movements), particularly with fine motor tasks. As the disorder progresses, other motor problems in- clude impaired gait (ataxia) and postural instability. Motor impairment eventually affects speech production (dysarthria) such that the speech becomes very difficult to understand, which may result in significant distress resulting from the communication barrier in the context of comparatively intact cognition. Advanced motor disease severely affects gait with progressive ataxia. Eventually individuals become nonambulatory. End-stage motor disease impairs motor control of eating and swallowing, typically a major contributor to the death of the individual from aspiration pneumonia. Genetic and physiological. The genetic basis of Huntington’s disease is a fully penetrant autosomal dominant expansion of the CAG trincleotide, often called a CAG repeat in the huntingtin gene. A repeat length of 36 or more is invariably associated with Huntington’s disease, with longer repeat lengths associated with early age at onset. A CAG repeat length of 36 or more is invariably associated with Huntington’s disease. Genetic testing is the primary laboratory test for the determination of Huntington’s dis- ease, which is an autosomal dominant disorder with complete penetrance. The trinucleo- tide CAG is observed to have a repeat expansion in the gene that encodes huntingtin protein on chromosome 4. A diagnosis of Huntington’s disease is not made in the presence of the gene expansion alone, but the diagnosis is made only after symptoms become man- ifest. Some individuals with a positive family history request genetic testing in a presymp- tomatic stage. Associated features may also include neuroimaging changes; volume loss in the basal ganglia, particularly the caudate nucleus and putamen, is well known to occur and progresses over the course of illness. Other structural and functional changes have been observed in brain imaging but remain research measures. Functionai Consequences of Major or MildNeurocognitlve Disorder Due to Huntington’s DiseaseIn the prodromal phase of illness and at early diagnosis, occupational decline is most com— mon, with most individuals reporting some loss of ability to engage in their typical work. The emotional, behavioral, and cognitive aspects of Huntington’s disease, such as disin- hibition and personality changes, are highly associated with functional decline. Cognitive deficits that contribute most to functional decline may include speed of processing, initi- ation, and attention rather than memory impairment. Given that Huntington’s disease on- set occurs in productive years of life, it may have a very disruptive effect on performance in the work setting as well as social and family life. As the disease progresses, disability from problems such as impaired gait, dysarthria, and impulsive or irritable behaviors may substantially add to the level of impairment and daily care needs, over and above the care needs attributable to the cognitive decline. Severe choreic movements may substantially interfere with provision of care such as bathing, dressing, and toileting. Other mental disorders. Early symptoms of Huntington’s disease may include instabil- ity of mood, irritability, or compulsive behaviors that may suggest another mental disor- der. However, genetic testing or the development of motor symptoms will distinguish the presence of Huntington’s disease. Other neurocognitive disorders. The early symptoms of Huntington’s disease, particu- larly symptoms of executive dysfunction and impaired psychomotor speed, may resemble other neurocognitive disorders (NCDs), such as major or mild vascular NCD. Major or Mild Neurocognitive Disorder Due to Another Medical Condition 641 Other movement disorders. Huntington’s disease must also be differentiated from other disorders or conditions associated with chorea, such as Wilson’s disease, drug-induced tardive dyskinesia, Sydenham’s chorea, systemic lupus erythematosus, or senile chorea. Rarely, individuals may present with a course similar to that of Huntington’s disease but without positive genetic testing; this is considered to be a Huntington’s disease pheno- copy that results from a variety of potential genetic factors. Due to Another Medical ConditionA. The criteria are met for major or mild neurocognitive disorder. B. There is evidence from the history, physical examination. or laboratory findings that the neurocognitive disorder is the pathophysiological consequence of another medical condition. C. The cognitive deficits are not better explained by another mental disorder or another specific neurocognitive disorder (e.g., Alzheimer’s disease, HIV infection). Coding note: For major neurocognitive disorder due to another medical condition, with behavioral disturbance, code first the other medical condition, followed by the major neu- rocognitive disorder due to another medical condition, with behavioral disturbance (e.g., 340 [635] multiple sclerosis, 294.11 [F02.81] major neurocognitive disorder due to multi- ple sclerosis, with behavioral disturbance). For major neurocognitive disorder due to an- other medical condition, without behavioral disturbance, code first the other medical condition, followed by the major neurocognitive disorder due to another medical condition, without behavioral disturbance (e.g., 340 [635] multiple sclerosis, 294.10 [F02.80] major neurocognitive disorder due to multiple sclerosis, without behavioral disturbance). For mild neUrocognitive disorder due to another medical condition, code 331.83 (631.84). (Note: Do not use the additional code for the other medical condition. Behavioral distur- bance cannot be coded but should still be indicated in writing.) A number of other medical conditions can cause neurocognitive disorders (NCDs). These conditions include structural lesions (e.g., primary or secondary brain tumors, subdural hematoma, slowly progressive or normal-pressure hydrocephalus), hypoxia related to hy- poperfusion from heart failure, endocrine conditions (e.g., hypothyroidism, hypercalce- mia, hypoglycemia), nutritional conditions (e.g., deficiencies of thiamine or niacin), other infectious conditions (e.g., neurosyphilis, cryptococcosis), immune disorders (e.g., tempo- ral arteritis, systemic lupus erythematosus), hepatic or renal failure, metabolic conditions (e.g., Kufs’ disease, adrenoleukodystrophy, metachromatic leukodystrophy, other storage diseases of adulthood and childhood), and other neurological conditions (e.g., epilepsy, multiple sclerosis). Unusual causes of central nervous system injury, such as electrical shock or intracranial radiation, are generally evident from the history. The temporal asso- ciation between the onset or exacerbation of the medical condition and the development of the cognitive deficit offers the greatest support that the NCD is induced by the medical condition. Diagnostic certainty regarding this relationship may be increased if the neuro- cognitive deficits ameliorate partially or stabilize in the context of treatment of the medical condition. Typically the course of the NCD progresses in a manner that is commensurate with progres- sion of the underlying medical disorder. In circumstances where the medical disorder is treat- able (e.g., hypothyroidism), the neurocognitive deficit may improve or at least not progress. When the medical condition has a deteriorative course (e.g., secondary progressive multiple sclerosis), the neurocognitive deficits will progress along with the temporal course of illness. pend on the nature and severity of the medical condition. Other major or mild neurocognitive disorder. The presence of an attributable medical condition does not entirely exclude the possibility of another major or mild NCD. If cog- nitive deficits persist following successful treatment of an associated medical condition, then another etiology may be responsible for the cognitive decline. Due to Multiple EtiologiesA. The criteria are met for major or mild neurocognitive disorder. B. There is evidence from the history. physical examination, or laboratory findings that the neurocognitive disorder is the pathophysiological consequence of more than one etio- logical process, excluding substances (e.g., neurocognitive disorder due to Alzhei- mer’s disease with subsequent development of vascular neurocognitive disorder). Note: Please refer to the diagnostic criteria for the various neurocognitive disorders due to specific medical conditions for guidance on establishing the particular etiologies. C. The cognitive deficits are not better explained by another mental disorder and do not occur exclusively during the course of a delirium. Coding note: For major neurocognitive disorder due to multiple etiologies, with behavioral disturbance, code 294.11 (F02.81); for major neurocognitive disorder due to multiple etiolo- gies, without behavioral disturbance, code 294.10 (F02.80). All of the etiological medical conditions (with the exception of vascular disease) should be coded and listed separately immediately before major neurocognitive disorder due to multiple etiologies (e.g., 331.0 [630.9] Alzheimer’s disease; 331.82 [631.83] Lewy body disease; 294.11 [F02.81] major neurocognitive disorder due to multiple etiologies, with behavioral disturbance). When a cerebrovascular etiology is contributing to the neurocognitive disorder, the diagno- sis of vascular neurocognitive disorder should be listed in addition to major neurocognitive disorder due to multiple etiologies. For example, for a presentation of major neurocognitive disorder due to both Alzheimer's disease and vascular disease, with behavioral disturbance, code the following: 331.0 (630.9) Alzheimer’s disease; 294.11 (F02.81) major neurocogni- tive disorder due to multiple etiologies, with behavioral disturbance; 290.40 (F01.51) major vascular neurocognitive disorder, with behavioral disturbance. For mild neurocognitive disorder due to multiple etiologies, code 331.83 (631.84). (Note: Do not use the additional codes for the etiologies. Behavioral disturbance cannot be coded but should still be indicated in writing.) This category is included to cover the clinical presentation of a neurocognitive disorder (NCD) development of the NCD. In addition to evidence indicative of the presence of multiple med- ical conditions that are known to cause NCD (i.e., findings from the history and physical ex- amination, and laboratory findings), it may be helpful to refer to the diagnostic criteria and text for the various medical etiologies (e.g., NCD due to Parkinson’s disease) for more information on establishing the etiological connection for that particular medical condition. 799.59 (R41.9)This category applies to presentations in which symptoms characteristic of a neurocogni- tive disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the neurocognitive disorders diagnostic class. The unspecified neuro- cognitive disorder category is used in situations in which the precise etiology cannot be determined with sufficient certainty to make an etiological attribution. Coding note: For unspecified major or mild neurocognitive disorder, code 799.59 (R419). (Note: Do not use additional codes for any presumed etiological medical conditions. Be- havioral disturbance cannot be coded but may be indicated in writing.) Th lS Chapter beg l US with a general definition of personality disorder that applies to each of the 10 specific personality disorders. A personality disorder is an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the in- dividual’s culture, is pervasive and inflexible, has an onset in adolescence or early adult- hood, is stable over time, and leads to distress or impairment. With any ongoing review process, especially one of this complexity, different view- points emerge, and an effort was made to accommodate them. Thus, personality disorders are included in both Sections II and III. The material in Section II represents an update of text associated with the same criteria found in DSM-IV-TR, whereas Section III includes the proposed research model for personality disorder diagnosis and conceptualization de- veloped by the DSM-S Personality and Personality Disorders Work Group. As this field evolves, it is hoped that both versions will serve clinical practice and research initiatives, respectively. The following personality disorders are included in this chapter.0 Paranoid personality disorder is a pattern of distrust and suspiciousness such that oth- ers’ motives are interpreted as malevolent. 0 Schizoid personality disorder is a pattern of detachment from social relationships and a restricted range of emotional expression. 0 Schizotypal personality disorder is a pattern of acute discomfort in close relationships, cognitive or perceptual distortions, and eccentricities of behavior. 0 Antisocial personality disorder is a pattern of disregard for, and violation of, the rights of others. 0 Borderline personality disorder is a pattern of instability in interpersonal relation- ships, self—image, and affects, and marked impulsivity. 0 Histrionic personality disorder is a pattern of excessive emotionality and attention seeking. - Narcissistic personality disorder is a pattern of grandiosity, need for admiration, and lack of empathy. - Avoidant personality disorder is a pattern of social inhibition, feelings of inadequacy, and hypersensitivity to negative evaluation. 0 Dependent personality disorder is a pattern of submissive and clinging behavior re- lated to an excessive need to be taken care of. 0 Obsessive-compulsive personality disorder is a pattern of preoccupation with order- liness, perfectionism, and control. 0 Personality change due to another medical condition is a persistent personality dis- turbance that is judged to be due to the direct physiological effects of a medical condi- tion (e.g., frontal lobe lesion). . Other specified personality disorder and unspecified personality disorder is a cate- gory provided for two situations: 1) the individual’s personality pattern meets the gen- eral criteria for a personality disorder, and traits of several different personality disorders are present, but the criteria for any specific personality disorder are not met; or 2) the individual’s personality pattern meets the general criteria for a personality dis- order, but the individual is considered to have a personality disorder that is not in- cluded in the DSM-5 classification (e.g., passive-aggressive personality disorder). The personality disorders are grouped into three clusters based on descriptive similarities. Cluster A includes paranoid, schizoid, and schizotypal personality disorders. Individuals with these disorders often appear odd or eccentric. Cluster B includes antisocial, borderline, histri- onic, and narcissistic personality disorders. Individuals with these disorders often appear dra- matic, emotional, or erratic. Cluster C includes avoidant, dependent, and obsessive— compulsive personality disorders. Individuals with these disorders often appear anxious or fearful. It should be noted that this clustering system, although useful in some research and ed- ucational situations, has serious limitations and has not been consistently validated. Moreover, individuals frequently present with co-occurring personality disorders from different clusters. Prevalence estimates for the different clusters suggest 5.7% for dis- orders in Cluster A, 1.5% for disorders in Cluster B, 6.0% for disorders in Cluster C, and 9.1% for any personality disorder, indicating frequent co-occurrence of disorders from dif- ferent clusters. Data from the 2001—2002 National Epidemiologic Survey on Alcohol and Related Conditions suggest that approximately 15% of US. adults have at least one per- sonality disorder. The diagnostic approach used in this manual represents the categorical perspective that personality disorders are qualitatively distinct clinical syndromes. An alternative to the categorical approach is the dimensional perspective that personality disorders represent maladaptive variants of personality traits that merge imperceptibly into normality and into one another. See Section III for a full description of a dimensional model for person- ality disorders. The DSM—IV personality disorder clusters (i.e., odd-eccentric, dramatic- emotional, and anxious-fearful) may also be viewed as dimensions representing spectra of personality dysfunction on a continuum with other mental disorders. The alternative di- mensional models have much in common and together appear to cover the important ar- eas of personality dysfunction. Their integration, clinical utility, and relationship with the personality disorder diagnostic categories and various aspects of personality dysfunction are under active investigation. A. An enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual’s culture. This pattern is manifested in two (or more) of the following areas: 1. Cognition (i.e., ways of perceiving and interpreting self, other people, and events). 2. Affectivity (i.e., the range, intensity, lability, and appropriateness of emotional re- sponse). 3. Interpersonalfunctioning.4. Impulse control.B. The enduring pattern is inflexible and pervasive across a broad range of personal and social situations. C. The enduring pattern leads to clinically significant distress or impairment in social, oc- cupational, or other important areas of functioning. D. The pattern is stable and of long duration, and its onset can be traced back at least to adolescence-pr early adulthood. E. The enduring pattern is not better explained as a manifestation or consequence of an- other mental disorder. F. The enduring pattern is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., head trauma). Personality traits are enduring patterns of perceiving, relating to, and thinking about the en- vironment and oneself that are exhibited in a wide range of social and personal contexts. Only when personality traits are inflexible and maladaptive and cause significant func- tional impairment or subjective distress do they constitute personality disorders. The essen- tial feature of a personality disorder is an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual’s culture and is manifested in at least two of the following areas: cognition, affectivity, interpersonal functioning, or im- pulse control (Criterion A). This enduring pattern is inflexible and pervasive across a broad range of personal and social situations (Criterion B) and leads to clinically significant dis- tress or impairment in social, occupational, or other important areas of functioning (Crite- rion C). The pattern is stable and of long duration, and its onset can be traced back at least to adolescence or early adulthood (Criterion D). The pattern is not better explained as a manifestation or consequence of another mental disorder (Criterion E) and is not attribut- able to the physiological effects of a substance (e.g., a drug of abuse, a medication, exposure to a toxin) or another medical condition (e.g., head trauma) (Criterion F). Specific diagnostic criteria are also provided for each of the personality disorders included in this chapter. The diagnosis of personality disorders requires an evaluation of the individual’s long- term patterns of functioning, and the particular personality features must be evident by early adulthood. The personality traits that define these disorders must also be distin- guished from characteristics that emerge in response to specific situational stressors or more transient mental states (e.g., bipolar, depressive, or anxiety disorders; substance in- toxication). The clinician should assess the stability of personality traits over time and across different situations. Although a single interview with the individual is sometimes sufficient for making the diagnosis, it is often necessary to conduct more than one inter- view and to space these over time. Assessment can also be complicated by the fact that the the individual (i.e., the traits are often ego-syntonic). To help overcome this difficulty, sup- plementary information from other informants may be helpful. The features of a personality disorder usually become recognizable during adolescence or early adult life. By definition, a personality disorder is an enduring pattern of thinking, feeling, and behaving that is relatively stable over time. Some types of personality disorder (notably, antisocial and borderline personality disorders) tend to become less evident or to remit with age, whereas this appears to be less true for some other types (e.g., obsessive- compulsive and schizotypal personality disorders). Personality disorder categories may be applied with children or adolescents in those relatively unusual instances in which the individual’s particular maladaptive personality traits appear to be pervasive, persistent, and unlikely to be limited to a particular devel- opmental stage or another mental disorder. It should be recognized that the traits of a per- sonality disorder that appear in childhood will often not persist unchanged into adult life. For a personality disorder to be diagnosed in an individual younger than 18 years, the fea- tures must have been present for at least 1 year. The one exception to this is antisocial per— sonality disorder, which cannot be diagnosed in individuals younger than 18 years. Al- though, by definition, a personality disorder requires an onset no later than early adulthood, individuals may not come to clinical attention until relatively late in life. A per- sonality disorder may be exacerbated following the loss of significant supporting persons (e.g., a spouse) or previously stabilizing social situations (e.g., a job). However, the devel- opment of a change in personality in middle adulthood or later life warrants a thorough evaluation to determine the possible presence of a personality change due to another med- ical condition or an unrecognized substance use disorder. Judgments about personality functioning must take into account the individual’s ethnic, cul- tural, and social background. Personality disorders should not be confused with problems as- sociated with acculturation following immigration or with the expression of habits, customs, or religious and political values professed by the individual’s culture of origin. It is useful for the clinician, especially when evaluating someone from a different background, to obtain ad- ditional information from informants who are familiar with the person’s cultural background. Certain personality disorders (e.g., antisocial personality disorder) are diagnosed more frequently in males. Others (e.g., borderline, histrionic, and dependent personality disor- ders) are diagnosed more frequently in females. Although these differences in prevalence probably reflect real gender differences in the presence of such patterns, clinicians must be cautious not to overdiagnose or underdiagnose certain personality disorders in females or in males because of social stereotypes about typical gender roles and behaviors. Other mental disorders and personality traits. Many of the specific criteria for the per- sonality disorders describe features (e.g., suspiciousness, dependency, insensitivity) that are also characteristic of episodes of other mental disorders. A personality disorder should be diagnosed only when the defining characteristics appeared before early adulthood, are typical of the individual’s long-term functioning, and do not occur exclusively during an episode of another mental disorder. It may be particularly difficult (and not particularly useful) to distinguish personality disorders from persistent mental disorders such as per- sistent depressive disorder that have an early onset and an enduring, relatively stable course. Some personality disorders may have a ”spectrum” relationship to other mental disorders (e.g., schizotypal personality disorder with schizophrenia; avoidant personality disorder with social anxiety disorder [social phobia]) based on phenomenological or bio- logical similarities or familial aggregation. the threshold for a personality disorder. Personality traits are diagnosed as a personality disorder only when they are inflexible, maladaptive, and persisting and cause significant functional impairment or subjective distress. Psychotic disorders. For the three personality disorders that may be related to the psy- chotic disorders (i.e., paranoid, schizoid, and schizotypal), there is an exclusion criterion stating that the pattern of behavior must not have occurred exclusively during the course of schizophrenia, a bipolar or depressive disorder with psychotic features, or another psy- chotic disorder. When an individual has a persistent mental disorder (e.g., schizophrenia) that was preceded by a preexisting personality disorder, the personality disorder should also be recorded, followed by ”premorbid" in parentheses. Anxiety and depressive disorders. The clinician must be cautious in diagnosing per- sonality disorders during an episode of a depressive disorder or an anxiety disorder, be- traits and may make it more difficult to evaluate retrospectively the individual’s long-term patterns of functioning. Posttraumatic stress disorder. When personality changes emerge and persist after an individual has been exposed to extreme stress, a diagnosis of posttraumatic stress disorder should be considered. Substance use disorders. When an individual has a substance use disorder, it is impor- tant not to make a personality disorder diagnosis based solely on behaviors that are con- sequences of substance intoxication or withdrawal or that are associated with activities in the service of sustaining substance use (e.g., antisocial behavior). Personality change due to another medical condition. When enduring changes in per- sonality arise as a result of the physiological effects of another medical condition (e.g., brain tumor), a diagnosis of personality change due to another medical condition should be considered. Diagnostic Criteria 301.0 (F60.0)A. A pervasive distrust and suspiciousness of others such that their motives are inter- preted as malevolent, beginning by early adulthood and present in a variety of con- texts, as indicated by four (or more) of the following: 1. Suspects, without sufficient basis, that others are exploiting, harming, or deceiving him or her. 2. Is preoccupied with unjustified doubts about the loyalty or trustworthiness of friends or associates. 3. Is reluctant to confide in others because of unwarranted fear that the information will be used maliciously against him or her. 4. Heads hidden demeaning or threatening meanings into benign remarks or events. 5. Persistently bears grudges (i.e., is unforgiving of insults, injuries, or slights). 6. Perceives attacks on his or her character or reputation that are not apparent to oth- ers and is quick to react angrily or to counterattack. 7. Has recurrent suspicions, withoutjustification, regarding fidelity of spouse or sexual partner. B. Does not occur exclusively during the course of schizophrenia, a bipolar disorder or depressive disorder with psychotic features, or another psychotic disorder and is not attributable to the physiological effects of another medical condition. Note: If criteria are met prior to the onset of schizophrenia, add “premorbid,” i.e., “paranoid personality disorder (premorbid).” The essential feature of paranoid personality disorder is a pattern of pervasive distrust and suspiciousness of others such that their motives are interpreted as malevolent. This pattern begins by early adulthood and is present in a variety of contexts. Individuals with this disorder assume that other people will exploit, harm, or deceive them, even if no evidence exists to support this expectation (Criterion A1). They suspect on the basis of little or no evidence that others are plotting against them and may attack them suddenly, at any time and without reason. They often feel that they have been deeply and irreversibly injured by another person or persons even when there is no objective evidence for this. They are preoccupied with unjustified doubts about the loyalty or trustworthiness of their friends and associates, whose actions are minutely scrutinized for evidence of hos- tile intentions (Criterion A2). Any perceived deviation from trustworthiness or loyalty serves to support their underlying assumptions. They are so amazed when a friend or as- sociate shows loyalty that they cannot trust or believe it. If they get into trouble, they ex- pect that friends and associates will either attack or ignore them. Individuals with paranoid personality disorder are reluctant to confide in or become close to others because they fear that the information they share will be used against them (Criterion A3). They may refuse to answer personal questions, saying that the information is ”nobody’s business.” They read hidden meanings that are demeaning and threatening into benign remarks or events (Criterion A4). For example, an individual with this disor- der may misinterpret an honest mistake by a store clerk as a deliberate attempt to short- change, or view a casual humorous remark by a co-worker as a serious character attack. Compliments are often misinterpreted (e.g., a compliment on a new acquisition is mis- interpreted as a criticism for selfishness; a compliment on an accomplishment is misinter- preted as an attempt to coerce more and better performance). They may view an offer of help as a criticism that they are not doing well enough on their own. Individuals with this disorder persistently bear grudges and are unwilling to forgive the insults, injuries, or slights that they think they have received (Criterion A5). Minor slights arouse major hostility, and the hostile feelings persist for a long time. Because they are constantly vigilant to the harmful intentions of others, they very often feel that their way. They are quick to counterattack and react with anger to perceived insults (Criterion A6). Individuals with this disorder may be pathologically jealous, often suspecting that their spouse or sexual partner is unfaithful without any adequate justification (Criterion A7). They may gather trivial and circumstantial "evidence” to support their jealous beliefs. They want to maintain complete control of intimate relationships to avoid being betrayed and may constantly question and challenge the whereabouts, actions, intentions, and fi- delity of their spouse or partner. Paranoid personality disorder should not be diagnosed if the pattern of behavior oc- curs exclusively during the course of schizophrenia, a bipolar disorder or depressive dis- order with psychotic features, or another psychotic disorder, or if it is attributable to the physiological effects of a neurological (e.g., temporal lobe epilepsy) or another medical condition (Criterion B). Individuals with paranoid personality disorder are generally difficult to get along with and often have problems with close relationships. Their excessive suspiciousness and hos- tility may be expressed in overt argumentativeness, in recurrent complaining, or by quiet, apparently hostile aloofness. Because they are hypervigilant for potential threats, they may act in a guarded, secretive, or devious manner and appear to be “cold” and lacking in tender feelings. Although they may appear to be objective, rational, and unemotional, they more often display a labile range of affect, with hostile, stubborn, and sarcastic expressions predominating. Their combative and suspicious nature may elicit a hostile response in others, which then serves to confirm their original expectations. Because individuals with paranoid personality disorder lack trust in others, they have an excessive need to be self-sufficient and a strong sense of autonomy. They also need to have a high degree of control over those around them. They are often rigid, critical of oth- ers, and unable to collaborate, although they have great difficulty accepting criticism them- selves. They may blame others for their own shortcomings. Because of their quickness to counterattack in response to the threats they perceive around them, they may be litigious and frequently become involved in legal disputes. Individuals with this disorder seek to confirm their preconceived negative notions regarding people or situations they encounter, attributing malevolent motivations to others that are projections of their own fears. They may exhibit thinly hidden, unrealistic grandiose fantasies, are often attuned to issues of power and rank, and tend to develop negative stereotypes of others, particularly those from population groups distinct from their own. Attracted by simplistic formulations of the world, they are often wary of ambiguous situations. They may be perceived as ”fanatics" and form tightly knit "cults” or groups with others who share their paranoid belief systems. Particularly in response to stress, individuals with this disorder may experience very brief psychotic episodes (lasting minutes to hours). In some instances, paranoid personal- ity disorder may appear as the premorbid antecedent of delusional disorder or schizo- phrenia. Individuals with paranoid personality disorder may develop major depressive order. Alcohol and other substance use disorders frequently occur. The most common co- occurring personality disorders appear to be schizotypal, schizoid, narcissistic, avoidant, and borderline. Part II of the National Comorbidity Survey Replication suggests a prevalence of 2.3%, while the National Epidemiologic Survey on Alcohol and Related Conditions data suggest a prevalence of paranoid personality disorder of 4.4%. solitariness, poor peer relationships, social anxiety, underachievement in school, hyper- sensitivity, peculiar thoughts and language, and idiosyncratic fantasies. These children may appear to be ”odd" or ”eccentric” and attract teasing. In clinical samples, this disorder appears to be more commonly diagnosed in males. Genetic and physiological. There is some evidence for an increased prevalence of par- anoid personality disorder in relatives of probands with schizophrenia and for a more spe- cific familial relationship with delusional disorder, persecutory type. Some behaviors that are influenced by sociocultural contexts or specific life circumstances may be erroneously labeled paranoid and may even be reinforced by the process of clinical evaluation. Members of minority groups, immigrants, political and economic refugees, or individuals of different ethnic backgrounds may display guarded or defensive behaviors because of unfamiliarity (e.g., language barriers or lack of knowledge of rules and regula- tions) or in response to the perceived neglect or indifference of the majority society. These behaviors can, in turn, generate anger and frustration in those who deal with these indi- viduals, thus setting up a vicious cycle of mutual mistrust, which should not be confused with paranoid personality disorder. Some ethnic groups also display culturally related be- haviors that can be misinterpreted as paranoid. Other mental disorders with psychotic symptoms. Paranoid personality disorder can be distinguished from delusional disorder, persecutory type; schizophrenia; and a bipolar or depressive disorder with psychotic features because these disorders are all characterized by a period of persistent psychotic symptoms (e.g., delusions and hallucinations). For an additional diagnosis of paranoid personality disorder to be given, the personality disorder must have been present before the onset of psychotic symptoms and must persist when the psychotic symptoms are in remission. When an individual has another persistent mental disorder (e.g., schizophrenia) that was preceded by paranoid personality disorder, paranoid personality dis- order should also be recorded, followed by ”premorbid” in parentheses. Personality change due to another medical condition. Paranoid personality disorder must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the direct effects of another medical condi- tion on the central nervous system. Substance use disorders. Paranoid personality disorder must be distinguished from symptoms that may develop in association with persistent substance use. Paranoid traits associated with physical handicaps. The disorder must also be distin- guished from paranoid traits associated with the development of physical handicaps (e.g., a hearing impairment). Other personality disorders and personality traits. Other personality disorders may be confused with paranoid personality disorder because they have certain features in common. It is therefore important to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to paranoid personality disorder, all can be diagnosed. Paranoid personality disorder and schizotypal personality disorder share the traits of suspiciousness, interpersonal aloofness, and paranoid ideation, but schizotypal per- sonality disorder also includes symptoms such as magical thinking, unusual perceptual ex- periences, and odd thinking and speech. Individuals with behaviors that meet criteria for schizoid personality disorder are often perceived as strange, eccentric, cold, and aloof, but they do not usually have prominent paranoid ideation. The tendency of individuals with paranoid personality disorder to react to minor stimuli with anger is also seen in borderline and histrionic personality disorders. However, these disorders are not necessarily associ- ated with pervasive suspiciousness. People with avoidant personality disorder may also be reluctant to confide in others, but more from fear of being embarrassed or found inadequate than from fear of others’ malicious intent. Although antisocial behavior may be present in some individuals with paranoid personality disorder, it is not usually motivated by a desire for personal gain or to exploit others as in antisocial personality disorder, but rather is more often attributable to a desire for revenge. Individuals with narcissistic personality disorder may occasionally display suspiciousness, social withdrawal, or alienation, but this derives primarily from fears of having their imperfections or flaws revealed. Paranoid traits may be adaptive, particularly in threatening environments. Paranoid personality disorder should be diagnosed only when these traits are inflexible, maladap- tive, and persisting and cause significant functional impairment or subjective distress. Diagnostic Criteria 301.20 (F60.1)A. A pervasive pattern of detachment from social relationships and a restricted range of expression of emotions in interpersonal settings, beginning by early adulthood and present in a variety of contexts. as indicated by four (or more) of the following: Neither desires nor enjoys close relationships, including being part of a family. Almost always chooses solitary activities.Has little, if any. interest in having sexual experiences with another person. Takes pleasure in few, if any, activities.Lacks close friends or confidants other than first-degree relatives.Appears indifferent to the praise or criticism of others.7. Shows emotional coldness, detachment, or flattened affectivity.B. Does not occur exclusively during the course of schizophrenia, a bipolar disorder or depressive disorder with psychotic features, another psychotic disorder, or autism spectrum disorder and is not attributable to the physiological effects of another medical condition. Note: If criteria are met prior to the onset of schizophrenia, add “premorbid,” i.e., “schiz- oid personality disorder (premorbid).” The essential feature of schizoid personality disorder is a pervasive pattern of detachment from social relationships and a restricted range of expression of emotions in interpersonal settings. This pattern begins by early adulthood and is present in a variety of contexts. Individuals with schizoid personality disorder appear to lack a desire for intimacy, seem indifferent to opportunities to develop close relationships, and do not seem to derive much satisfaction from being part of a family or other social group (Criterion A1). They prefer spending time by themselves, rather than being with other people. They often ap- pear to be socially isolated or ”loners" and almost always choose solitary activities or hob- bies that do not include interaction with others (Criterion A2). They prefer mechanical or abstract tasks, such as computer or mathematical games. They may have very little interest in having sexual experiences with another person (Criterion A3) and take pleasure in few, if any, activities (Criterion A4). There is usually a reduced experience of pleasure from sen- sory, bodily, or interpersonal experiences, such as walking on a beach at sunset or having sex. These individuals have no close friends or confidants, except possibly a first-degree relative (Criterion A5). Individuals with schizoid personality disorder often seem indifferent to the approval or criticism of others and do not appear to be bothered by what others may think of them (Criterion A6). They may be oblivious to the normal subtleties of social interaction and of- ten do not respond appropriately to social cues so that they seem socially inept or super- ficial and self—absorbed. They usually display a ”bland” exterior without visible emotional reactivity and rarely reciprocate gestures or facial expressions, such as smiles or nods (Cri- terion A7). They claim that they rarely experience strong emotions such as anger and joy. They often display a constricted affect and appear cold and aloof. However, in those very able in revealing themselves, they may acknowledge having painful feelings, particularly related to social interactions. Schizoid personality disorder should not be diagnosed if the pattern of behavior occurs exclusively during the course of schizophrenia, a bipolar or depressive disorder with psy- chotic features, another psychotic disorder, or autism spectrum disorder, or if it is attrib- utable to the physiological effects of a neurological (e.g., temporal lobe epilepsy) or another medical condition (Criterion B). Individuals with schizoid personality disorder may have particular difficulty expressing anger, even in response to direct provocation, which contributes to the impression that they lack emotion. Their lives sometimes seem directionless, and they may appear to ”drift" in their goals. Such individuals often react passively to adverse circumstances and have difficulty responding appropriately to important life events. Because of their lack of social skills and lack of desire for sexual experiences, individuals with this disorder have few friendships, date infrequently, and often do not marry. Occupational functioning may be impaired, particularly if interpersonal involvement is required, but individuals with this disorder may do well when they work under conditions of social isolation. Particu- larly in response to stress, individuals with this disorder may experience very brief psy- chotic episodes (lasting minutes to hours). In some instances, schizoid personality disorder may appear as the premorbid antecedent of delusional disorder or schizophre- nia. Individuals with this disorder may sometimes develop major depressive disorder. Schizoid personality disorder most often co-occurs with schizotypal, paranoid, and avoid- ant personality disorders. Schizoid personality disorder is uncommon in clinical settings. A prevalence estimate for schizoid personality based on a probability subsample from Part II of the National Co- morbidity Survey Replication suggests a prevalence of 4.9%. Data from the 2001—2002 3.1%. solitariness, poor peer relationships, and underachievement in school, which mark these children or adolescents as different and make them subject to teasing. Genetic and physiological. Schizoid personality disorder may have increased preva- lence in the relatives of individuals with schizophrenia or schizotypal personality disorder. Individuals from a variety of cultural backgrounds sometimes exhibit defensive behaviors and interpersonal styles that may be erroneously labeled as ”schizoid.” For example, those who have moved from rural to metropolitan environments may react with ”emotional freezing” that may last for several months and manifest as solitary activities, constricted affect, and other deficits in communication. Immigrants from other countries are some- times mistakenly perceived as cold, hostile, or indifferent. Schizoid personality disorder is diagnosed slightly more often in males and may cause more impairment in them. Other mental disorders with psychotic Symptoms. Schizoid personality disorder can be distinguished from delusional disorder, schizophrenia, and a bipolar or depressive dis- order with psychotic features because these disorders are all characterized by a period of persistent psychotic symptoms (e.g., delusions and hallucinations). To give an additional diagnosis of schizoid personality disorder, the personality disorder must have been present before the onset of psychotic symptoms and must persist when the psychotic symptoms are in remission. When an individual has a persistent psychotic disorder (e.g., schizophre- nia) that was preceded by schizoid personality disorder, schizoid personality disorder should also be recorded, followed by ”premorbid" in parentheses. Autism spectrum disorder. There may be great difficulty differentiating individuals with schizoid personality disorder from those with milder forms of autism spectrum disorder, behaviors and interests. Personality change due to another medical condition. Schizoid personality disorder must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Schizoid personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Other personality disorders and personality traits. Other personality disorders may be confused with schizoid personality disorder because they have certain features in com- mon. It is, therefore, important to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to schizoid personality dis- order, all can be diagnosed. Although characteristics of social isolation and restricted af- fectivity are common to schizoid, schizotypal, and paranoid personality disorders, by the lack of cognitive and perceptual distortions and from paranoid personality disorder by the lack of suspiciousness and paranoid ideation. The social isolation of schizoid per- sonality disorder can be distinguished from that of avoidant personality disorder, which is attributable to fear of being embarrassed or found inadequate and excessive anticipation of rejection. In contrast, people with schizoid personality disorder have a more pervasive detachment and limited desire for social intimacy. Individuals with obsessive-compulsive tion to work and discomfort with emotions, but they do have an underlying capacity for intimacy. Individuals who are "loners" may display personality traits that might be considered schizoid. Only when these traits are inflexible and maladaptive and cause significant func- tional impairment or subjective distress do they constitute schizoid personality disorder. Diagnostic Criteria 301.22 (F21)A. A pen/asive pattern of social and interpersonal deficits marked by acute discomfort with, and reduced capacity for, close relationships as well as by cognitive or perceptual distortions and eccentricities of behavior, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following: 1. Ideas of reference (excluding delusions of reference). 2. Odd beliefs or magical thinking that influences behavior and is inconsistent with subcultural norms (e.g., superstitiousness. belief in clairvoyance, telepathy, or “sixth sense"; in children and adolescents, bizarre fantasies or preoccupations). 3. Unusual perceptual experiences, including bodily illusions.4. Odd thinking and speech (e.g., vague, circumstantial, metaphorical, overelaborate, or stereotyped). 5. Suspiciousness or paranoid ideation.Inappropriate or constricted affect.Behavior or appearance that is odd, eccentric. or peculiar.Lack of close friends or contidants other than first—degree relatives. Excessive social anxiety that does not diminish with familiarity and tends to be as- sociated with paranoid fears rather than negative judgments about self. B. Does not occur exclusively during the course of schizophrenia, a bipolar disorder or depressive disorder with psychotic features, another psychotic disorder, or autism spectrum disorder. Note: If criteria are met prior to the onset of schizophrenia, add “premorbid," e.g., “schizo- typal personality disorder (premorbid)." The essential feature of schizotypal personality disorder is a pervasive pattern of social and interpersonal deficits marked by acute discomfort with, and reduced capacity for, close relationships as well as by cognitive or perceptual distortions and eccentricities of be- havior. This pattern begins by early adulthood and is present in a variety of contexts. Individuals with schizotypal personality disorder often have ideas of reference (i.e., in- correct interpretations of casual incidents and external events as having a particular and unusual meaning specifically for the person) (Criterion A1). These should be distin- guished from delusions of reference, in which the beliefs are held with delusional convic- tion. These individuals may be superstitious or preoccupied with paranormal phenomena that are outside the norms of their subculture (Criterion A2). They may feel that they have special powers to sense events before they happen or to read others’ thoughts. They may believe that they have magical control over others, which can be implemented directly (e.g., believing that their spouse’s taking the dog out for a walk is the direct result of think— ing an hour earlier it should be done) or indirectly through compliance with magical rit- uals (e.g., walking past a specific object three times to avoid a certain harmful outcome). Perceptual alterations may be present (e.g., sensing that another person is present or hear— ing a voice murmuring his or her name) (Criterion A3). Their speech may include unusual or idiosyncratic phrasing and construction. It is often loose, digressive, or vague, but with- out actual derailment or incoherence (Criterion A4). Responses can be either overly con— crete or overly abstract, and words or concepts are sometimes applied in unusual ways (e.g., the individual may state that he or she was not "talkable" at work). Individuals with this disorder are often suspicious and may have paranoid ideation (e.g., believing their colleagues at work are intent on undermining their reputation with the boss) (Criterion A5). They are usually not able to negotiate the full range of affects and interpersonal cuing required for successful relationships and thus often appear to interact with others in an inappropriate, stiff, or constricted fashion (Criterion A6). These individ- uals are often considered to be odd or eccentric because of unusual mannerisms, an often unkempt manner of dress that does not quite ”fit together,” and inattention to the usual social conventions (e.g., the individual may avoid eye contact, wear clothes that are ink stained and ill-fitting, and be unable to join in the give-and-take banter of co-workers) (Criterion A7). Individuals with schizotypal personality disorder experience interpersonal related- ness as problematic and are uncomfortable relating to other people. Although they may express unhappiness about their lack of relationships, their behavior suggests a decreased desire for intimate contacts. As a result, they usually have no or few close friends or con- fidants other than a first-degree relative (Criterion A8). They are anxious in social situa- tions, particularly those involving unfamiliar people (Criterion A9). They will interact with other individuals when they have to but prefer to keep to themselves because they feel that they are different and just do not ”fit in.” Their social anxiety does not easily abate, even when they spend more time in the setting or become more familiar with the other people, because their anxiety tends to be associated with suspiciousness regarding others’ motivations. For example, when attending a dinner party, the individual with schizotypal personality disorder will not become more relaxed as time goes on, but rather may become increasingly tense and suspicious. Schizotypal personality disorder should not be diagnosed if the pattem of behavior oc- curs exclusively during the course of schizophrenia, a bipolar or depressive disorder with psychotic features, another psychotic disorder, or autism spectrum disorder (Criterion B). Individuals with schizotypal personality disorder often seek treatment for the associated symptoms of anxiety or depression rather than for the personality disorder features per se. Particularly in response to stress, individuals with this disorder may experience transient psychotic episodes (lasting minutes to hours), although they usually are insufficient in du- ration to warrant an additional diagnosis such as brief psychotic disorder or schizophreni- form disorder. In some cases, clinically significant psychotic symptoms may develop that meet criteria for brief psychotic disorder, schizophreniform disorder, delusional disorder, or schizophrenia. Over half may have a history of at least one major depressive episode. From 30% to 50% of individuals diagnosed with this disorder have a concurrent diagnosis of major depressive disorder when admitted to a clinical setting. There is considerable co- occurrence with schizoid, paranoid, avoidant, and borderline personality disorders. In community studies of schizotypal personality disorder, reported rates range from 0.6% in Norwegian samples to 4.6% in a U5. community sample. The prevalence of schizotypal personality disorder in clinical populations seems to be infrequent (0%—1.9%), with a higher estimated prevalence in the general population (3.9%) found in the National Epi- demiologic Survey on Alcohol and Related Conditions. Schizotypal personality disorder has a relatively stable course, with only a small propor- tion of individuals going on to develop schizophrenia or another psychotic disorder. solitariness, poor peer relationships, social anxiety, underachievement in school, hyper- sensitivity, peculiar thoughts and language, and bizarre fantasies. These children may ap- pear ”odd” or ”eccentric” and attract teasing. Genetic and physiological. Schizotypal personality disorder appears to aggregate fa- milially and is more prevalent among the first-degree biological relatives of individuals with schizophrenia than among the general population. There may also be a modest in- crease in schizophrenia and other psychotic disorders in the relatives of probands with schizotypal personality disorder. Cognitive and perceptual distortions must be evaluated in the context of the individual’s cultural milieu. Pervasive culturally determined characteristics, particularly those regard- ing religious beliefs and rituals, can appear to be schizotypal to the uninformed outsider (e.g., voodoo, speaking in tongues, life beyond death, shamanism, mind reading, sixth sense, evil eye, magical beliefs related to health and illness). Schizotypal personality disorder may be slightly more common in males. Other mental disorders with psychotic symptoms. Schizotypal personality disorder can be distinguished from delusional disorder, schizophrenia, and a bipolar or depressive disorder with psychotic features because these disorders are all characterized by a period of persistent psychotic symptoms (e.g., delusions and hallucinations). To give an addi- tional diagnosis of schizotypal personality disorder, the personality disorder must have been present before the onset of psychotic symptoms and persist when the psychotic symptoms are in remission. When an individual has a persistent psychotic disorder (e.g., schizophrenia) that was preceded by schizotypal personality disorder, schizotypal per- sonality disorder should also be recorded, followed by ”premorbid" in parentheses. Neurodevelopmental disorders. There may be great difficulty differentiating children with schizotypal personality disorder from the heterogeneous group of solitary, odd chil- dren whose behavior is characterized by marked social isolation, eccentricity, or peculiar- ities of language and whose diagnoses would probably include milder forms of autism spectrum disorder or language communication disorders. Communication disorders may be differentiated by the primacy and severity of the disorder in language and by the char- acteristic features of impaired language found in a specialized language assessment. Milder forms of autism spectrum disorder are differentiated by the even greater lack of so- cial awareness and emotional reciprocity and stereotyped behaviors and interests. Personality change due to another medical condition. Schizotypal personality disor- der must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Schizotypal personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Other personality disorders and personality traits. Other personality disorders may be confused with schizotypal personality disorder because they have certain features in common. It is, therefore, important to distinguish among these disorders based on differ- ences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to schizotypal person- ality disorder, all can be diagnosed. Although paranoid and schizoid personality disor- ders may also be characterized by social detachment and restricted affect, schizotypal personality disorder can be distinguished from these two diagnoses by the presence of cognitive or perceptual distortions and marked eccentricity or oddness. Close relation- ships are limited in both schizotypal personality disorder and avoidant personality dis- order; however, in avoidant personality disorder an active desire for relationships is constrained by a fear of rejection, whereas in schizotypal personality disorder there is a lack of desire for relationships and persistent detachment. Individuals with narcissistic personality disorder may also display suspiciousness, social withdrawal, or alienation, but in narcissistic personality disorder these qualities derive primarily from fears of hav- ing imperfections or flaws revealed. Individuals with borderline personality disorder may also have transient, psychotic-like symptoms, but these are usually more closely related to affective shifts in response to stress (e.g., intense anger, anxiety, disappointment) and are usually more dissociative (e.g., derealization, depersonalization). In contrast, individuals with schizotypal personality disorder are more likely to have enduring psychotic-like symp- toms that may worsen under stress but are less likely to be invariably associated with pro- nounced affective symptoms. Although social isolation may occur in borderline personality disorder, it is usually secondary to repeated interpersonal failures due to angry outbursts and frequent mood shifts, rather than a result of a persistent lack of social contacts and de- sire for intimacy. Furthermore, individuals with schizotypal personality disorder do not usually demonstrate the impulsive or manipulative behaviors of the individual with bor- derline personality disorder. However, there is a high rate of co-occurrence between the two disorders, so that making such distinctions is not always feasible. Schizotypal features during adolescence may be reflective of transient emotional turmoil, rather than an endur- ing personality disorder. Diagnostic Criteria 301.7 (F60.2)A. A pervasive pattern of disregard for and violation of the rights of others, occurring since age 15 years, as indicated by three (or more) of the following: 1. Failure to conform to social norms with respect to lawful behaviors, as indicated by repeatedly performing acts that are grounds for arrest. 2. Deceitfulness, as indicated by repeated lying, use of aliases, or conning others for personal profit or pleasure. Impulsivity or failure to plan ahead.lrritability and aggressiveness, as indicated by repeated physical fights or assaults. Reckless disregard for safety of self or others.Consistent irresponsibility. as indicated by repeated failure to sustain consistent work behavior or honor financial obligations. 7. Lack of remorse, as indicated by being indifferent to or rationalizing having hurt, mistreated, or stolen from another. . The individual is at least age 18 years.. There is evidence of conduct disorder with onset before age 15 years. . The occurrence of antisocial behavior is not exclusively during the course of schizo- phrenia or bipolar disorder. The essential feature of antisocial personality disorder is a pervasive pattern of disregard for, and violation of, the rights of others that begins in childhood or early adolescence and continues into adulthood. This pattern has also been referred to as psychopathy, sociopathy, or dyssocial personality disorder. Because deceit and manipulation are central features of an- tisocial personality disorder, it may be especially helpful to integrate information acquired from systematic clinical assessment with information collected from collateral sources. For this diagnosis to be given, the individual must be at least age 18 years (Criterion B) and must have had a history of some symptoms of conduct disorder before age 15 years (Criterion C). Conduct disorder involves a repetitive and persistent pattern of behavior in which the basic rights of others or major age-appropriate societal norms or rules are vio- lated. The specific behaviors characteristic of conduct disorder fall into one of four cate- gories: aggression to people and animals, destruction of property, deceitfulness or theft, or serious violation of rules. The pattern of antisocial behavior continues into adulthood. Individuals with antiso- cial personality disorder fail to conform to social norms with respect to lawful behavior (Criterion A1). They may repeatedly perform acts that are grounds for arrest (whether they are arrested or not), such as destroying property, harassing others, stealing, or pur- suing illegal occupations. Persons with this disorder disregard the wishes, rights, or feel- ings of others. They are frequently deceitful and manipulative in order to gain personal profit or pleasure (e.g., to obtain money, sex, or power) (Criterion A2). They may repeat- edly lie, use an alias, con others, or malinger. A pattern of impulsivity may be manifested by a failure to plan ahead (Criterion A3). Decisions are made on the spur of the moment, without forethought and without consideration for the consequences to self or others; this may lead to sudden changes of jobs, residences, or relationships. Individuals with antiso- cial personality disorder tend to be irritable and aggressive and may repeatedly get into physical fights or commit acts of physical assault (including spouse beating or child beat- ing) (Criterion A4). (Aggressive acts that are required to defend oneself or someone else are not considered to be evidence for this item.) These individuals also display a reckless disregard for the safety of themselves or others (Criterion A5). This may be evidenced in their driving behavior (i.e., recurrent speeding, driving while intoxicated, multiple acci- dents). They may engage in sexual behavior or substance use that has a high risk for harm- ful consequences. They may neglect or fail to care for a child in a way that puts the child in danger. Individuals with antisocial personality disorder also tend to be consistently and ex- tremely irresponsible (Criterion A6). Irresponsible work behavior may be indicated by sig- nificant periods of unemployment despite available job opportunities, or by abandonment of several jobs without a realistic plan for getting another job. There may also be a pattern of repeated absences from work that are not explained by illness either in themselves or in their family. Financial irresponsibility is indicated by acts such as defaulting on debts, fail- ing to provide child support, or failing to support other dependents on a regular basis. In- dividuals with antisocial personality disorder show little remorse for the consequences of their acts (Criterion A7). They may be indifferent to, or provide a superficial rationaliza- tion for, having hurt, mistreated, or stolen from someone (e.g., ”life’s unfair,” "losers de- serve to lose”). These individuals may blame the victims for being foolish, helpless, or deserving their fate (e.g., "he had it coming anyway”); they may minimize the harmful consequences of their actions; or they may simply indicate complete indifference. They generally fail to compensate or make amends for their behavior. They may believe that everyone is out to "help number one” and that one should stop at nothing to avoid being pushed around. The antisocial behavior must not occur exclusively during the course of schizophrenia or bipolar disorder (Criterion D). Individuals with antisocial personality disorder frequently lack empathy and tend to be callous, cynical, and contemptuous of the feelings, rights, and sufferings of others. They may have an inflated and arrogant self—appraisal (e.g., feel that ordinary work is beneath excessively opinionated, self—assured, or cocky. They may display a glib, superficial charm and can be quite voluble and verbally facile (e.g., using technical terms or jargon that might impress someone who is unfamiliar with the topic). Lack of empathy, inflated self- appraisal, and superficial charm are features that have been commonly included in tradi- tional conceptions of psychopathy that may be particularly distinguishing of the disorder and more predictive of recidivism in prison or forensic settings, where criminal, delin— quent, or aggressive acts are likely to be nonspecific. These individuals may also be irre- sponsible and exploitative in their sexual relationships. They may have a history of many sexual partners and may never have sustained a monogamous relationship. They may be irresponsible as parents, as evidenced by malnutrition of a child, an illness in the child re- sulting from a lack of minimal hygiene, a child’s dependence on neighbors or nonresident relatives for food or shelter, a failure to arrange for a caretaker for a young child when the individual is away from home, or repeated squandering of money required for household necessities. These individuals may receive dishonorable discharges from the armed ser- vices, may fail to be self-supporting, may become impoverished or even homeless, or may spend many years in penal institutions. Individuals with antisocial personality disorder are more likely than people in the general population to die prematurely by violent means (e.g., suicide, accidents, homicides). Individuals with antisocial personality disorder may also experience dysphoria, in- cluding complaints of tension, inability to tolerate boredom, and depressed mood. They may have associated anxiety disorders, depressive disorders, substance use disorders, 50- matic symptom disorder, gambling disorder, and other disorders of impulse control. In- dividuals with antisocial personality disorder also often have personality features that meet criteria for other personality disorders, particularly borderline, histrionic, and nar- cissistic personality disorders. The likelihood of developing antisocial personality disor- der in adult life is increased if the individual experienced childhood onset of conduct disorder (before age 10 years) and accompanying attention-deficit/hyperactivity disorder. Child abuse or neglect, unstable or erratic parenting, or inconsistent parental discipline may increase the likelihood that conduct disorder will evolve into antisocial personality disorder. Twelve-month prevalence rates of antisocial personality disorder, using criteria from pre— vious DSMs, are between 0.2% and 3.3%. The highest prevalence of antisocial personality disorder (greater than 70%) is among most severe samples of males with alcohol use dis- order and from substance abuse clinics, prisons, or other forensic settings. Prevalence is higher in samples affected by adverse socioeconomic (i.e., poverty) or sociocultural (i.e., migration) factors. as the individual grows older, particularly by the fourth decade of life. Although this re- mission tends to be particularly evident with respect to engaging in criminal behavior, there is likely to be a decrease in the full spectrum of antisocial behaviors and substance use. By definition, antisocial personality cannot be diagnosed before age 18 years. Genetic and physiological. Antisocial personality disorder is more common among the first-degree biological relatives of those with the disorder than in the general population. The risk to biological relatives of females with the disorder tends to be higher than the risk to biological relatives of males with the disorder. Biological relatives of individuals with this disorder are also at increased risk for somatic symptom disorder and substance use disorders. Within a family that has a member with antisocial personality disorder, males more often have antisocial personality disorder and substance use disorders, whereas fe- males more often have somatic symptom disorder. However, in such families, there is an increase in prevalence of all of these disorders in both males and females compared with the general population. Adoption studies indicate that both genetic and environmental factors contribute to the risk of developing antisocial personality disorder. Both adopted and biological children of parents with antisocial personality disorder have an increased risk of developing antisocial personality disorder, somatic symptom disorder, and sub- stance use disorders. Adopted-away children resemble their biological parents more than their adoptive parents, but the adoptive family environment influences the risk of devel- oping a personality disorder and related psychopathology. Antisocial personality disorder appears to be associated with low socioeconomic status and urban settings. Concerns have been raised that the diagnosis may at times be misap— plied to individuals in settings in which seemingly antisocial behavior may be part of a protective survival strategy. In assessing antisocial traits, it is helpful for the clinician to consider the social and economic context in which the behaviors occur. Antisocial personality disorder is much more common in males than in females. There has males, particularly because of the emphasis on aggressive items in the definition of con- duct disorder. The diagnosis of antisocial personality disorder is not given to individuals younger than 18 years and is given only if there is a history of some symptoms of conduct disorder be- fore age 15 years. For individuals older than 18 years, a diagnosis of conduct disorder is given only if the criteria for antisocial personality disorder are not met. Substance use disorders. When antisocial behavior in an adult is associated with a substance use disorder, the diagnosis of antisocial personality disorder is not made unless the signs of antisocial personality disorder were also present in childhood and have con- tinued into adulthood. When substance use and antisocial behavior both began in childhood and continued into adulthood, both a substance use disorder and antisocial personality disorder should be diagnosed if the criteria for both are met, even though some antisocial acts may be a consequence of the substance use disorder (e.g., illegal selling of drugs, thefts to obtain money for drugs). Schizophrenia and bipolar disorders. Antisocial behavior that occurs exclusively dur- ing the course of schizophrenia or a bipolar disorder should not be diagnosed as antisocial personality disorder. Other personality disorders. Other personality disorders may be confused with antiso- cial personality disorder because they have certain features in common. It is therefore im- portant to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to antisocial personality disorder, all can be diag- nosed. Individuals with antisocial personality disorder and narcissistic personality disor- der share a tendency to be tough-minded, glib, superficial, exploitative, and lack empathy. However, narcissistic personality disorder does not include characteristics of impulsivity, aggression, and deceit. In addition, individuals with antisocial personality disorder may not be as needy of the admiration and envy of others, and persons with narcissistic per- sonality disorder usually lack the history of conduct disorder in childhood or criminal behavior in adulthood. Individuals with antisocial personality disorder and histrionic personality disorder share a tendency to be impulsive, superficial, excitement seeking, reckless, seductive, and manipulative, but persons with histrionic personality disorder tend to be more exaggerated in their emotions and do not characteristically engage in an- tisocial behaviors. Individuals with histrionic and borderline personality disorders are manipulative to gain nurturance, whereas those with antisocial personality disorder are manipulative to gain profit, power, or some other material gratification. Individuals with antisocial personality disorder tend to be less emotionally unstable and more aggressive than those with borderline personality disorder. Although antisocial behavior may be present in some individuals with paranoid personality disorder, it is not usually moti- vated by a desire for personal gain or to exploit others as in antisocial personality disorder, but rather is more often attributable to a desire for revenge. Criminal behavior not associated with a personality disorder. Antisocial personality disorder must be distinguished from criminal behavior undertaken for gain that is not ac- companied by the personality features characteristic of this disorder. Only when antisocial personality traits are inflexible, maladaptive, and persistent and cause significant func- tional impairment or subjective distress do they constitute antisocial personality disorder. Diagnostic Criteria 301.83 (F60.3)A pervasive pattern of instability of interpersonal relationships, seIf-image, and affects, and marked impulsivity, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following: 1. Frantic efforts to avoid real or imagined abandonment. (Note: Do not include suicidal or self-mutilating behavior covered in Criterion 5.) 2. A pattern of unstable and intense interpersonal relationships characterized by alternat- ing between extremes of idealization and devaluation. Identity disturbance: markedly and persistently unstable seIf-image or sense of self. 4. impulsivity in at least two areas that are potentially self—damaging (e.g., spending, sex, substance abuse, reckless driving, binge eating). (Note: Do not include suicidal or self- mutilating behavior covered in Criterion 5.) 5. Recurrent suicidal behavior, gestures. or threats. or seIf-mutilating behavior. 6. Affective instability due to a maiked reactivity of mood (e.g., intense episodic dysphoria, irritability, or anxiety usually lasting a few hours and only rarely more than a few days). 7. Chronic feelings of emptiness.8. Inappropriate, intense anger or difficulty controlling anger (e.g., frequent displays of temper, constant anger, recurrent physical fights). 9. Transient, stress-related paranoid ideation or severe dissociative symptoms.The essential feature of borderline personality disorder is a pervasive pattern of instability of interpersonal relationships, self—image, and affects, and marked impulsivity that begins by early adulthood and is present in a variety of contexts. Individuals with borderline personality disorder make frantic efforts to avoid real or imagined abandonment (Criterion 1). The perception of impending separation or rejection, or the loss of external structure, can lead to profound changes in self—image, affect, cognition, and behavior. These individuals are very sensitive to environmental circumstances. They ex- perience intense abandonment fears and inappropriate anger even when faced with a real- istic time-limited separation or when there are unavoidable changes in plans (e.g., sudden despair in reaction to a clinician’s announcing the end of the hour; panic or fury when some- one important to them is just a few minutes late or must cancel an appointment). They may believe that this “abandonment” implies they are ”bad.” These abandonment fears are re- lated to an intolerance of being alone and a need to have other people with them. Their frantic efforts to avoid abandonment may include impulsive actions such as self—mutilating or sui- cidal behaviors, which are described separately in Criterion 5. Individuals with borderline personality disorder have a pattern of unstable and intense relationships (Criterion 2). They may idealize potential caregivers or lovers at the first or second meeting, demand to spend a lot of time together, and share the most intimate details early in a relationship. However, they may switch quickly from idealizing other people to devaluing them, feeling that the other person does not care enough, does not give enough, or is not ”there” enough. These individuals can empathize with and nurture other people, but only with the expectation that the other person will "be there” in return to meet their own needs on demand. These individuals are prone to sudden and dramatic shifts in their view of others, who may alternatively be seen as beneficent supports or as cruelly punitive. Such shifts often reflect disillusionment with a caregiver whose nurturing qualities had been idealized or whose rejection or abandonment is expected. stable self—image or sense of self (Criterion 3). There are sudden and dramatic shifts in self- image, characterized by shifting goals, values, and vocational aspirations. There may be sudden changes in opinions and plans about career, sexual identity, values, and types of friends. These individuals may suddenly change from the role of a needy supplicant for help to that of a righteous avenger of past mistreatment. Although they usually have a self- image that is based on being bad or evil, individuals with this disorder may at times have feelings that they do not exist at all. Such experiences usually occur in situations in which the individual feels a lack of a meaningful relationship, nurturing, and support. These in- dividuals may show worse performance in unstructured work or school situations. Individuals with borderline personality disorder display impulsivity in at least two areas that are potentially self—damaging (Criterion 4). They may gamble, spend money irrespon- sibly, binge eat, abuse substances, engage in unsafe sex, or drive recklessly. Individuals with this disorder display recurrent suicidal behavior, gestures, or threats, or self—mutilat- ing behavior (Criterion 5). Completed suicide occurs in 8%—10% of such individuals, and self-mutilative acts (e.g., cutting or burning) and suicide threats and attempts are very common. Recurrent suicidality is often the reason that these individuals present for help. These self—destructive acts are usually precipitated by threats of separation or rejection or by expectations that the individual assumes increased responsibility. Self—mutilation may occur during dissociative experiences and often brings relief by reaffirming the ability to feel or by expiating the individual’s sense of being evil. Individuals with borderline personality disorder may display affective instability that is due to a marked reactivity of mood (e.g., intense episodic dysphoria, irritability, or anx- iety usually lasting a few hours and only rarely more than a few days) (Criterion 6). The basic dysphoric mood of those with borderline personality disorder is often disrupted by periods of anger, panic, or despair and is rarely relieved by periods of well-being or satis- faction. These episodes may reflect the individual’s extreme reactivity to interpersonal stresses. Individuals with borderline personality disorder may be troubled by chronic feel- ings of emptiness (Criterion 7). Easily bored, they may constantly seek something to do. Individuals with this disorder frequently express inappropriate, intense anger or have dif- ficulty controlling their anger (Criterion 8). They may display extreme sarcasm, enduring bitterness, or verbal outbursts. The anger is often elicited when a caregiver or lover is seen as neglectful, withholding, uncaring, or abandoning. Such expressions of anger are often followed by shame and guilt and contribute to the feeling they have of being evil. During periods of extreme stress, transient paranoid ideation or dissociative symptoms (e.g., de- personalization) may occur (Criterion 9), but these are generally of insufficient severity or duration to warrant an additional diagnosis. These episodes occur most frequently in re- sponse to a real or imagined abandonment. Symptoms tend to be transient, lasting min- utes or hours. The real or perceived return of the caregiver’s nurturance may result in a remission of symptoms. Individuals with borderline personality disorder may have a pattern of undermining themselves at the moment a goal is about to be realized (e.g., dropping out of school just before graduation; regressing severely after a discussion of how well therapy is going; de- stroying a good relationship just when it is clear that the relationship could last). Some in- dividuals develop psychotic—like symptoms (e.g., hallucinations, body-image distortions, ideas of reference, hypnagogic phenomena) during times of stress. Individuals with this disorder may feel more secure with transitional objects (i.e., a pet or inanimate possession) than in interpersonal relationships. Premature death from suicide may occur in individu- als with this disorder, especially in those with co-occurring depressive disorders or sub- stance use disorders. Physical handicaps may result from self—inflicted abuse behaviors or failed suicide attempts. Recurrent job losses, interrupted education, and separation or di- vorce are common. Physical and sexual abuse, neglect, hostile conflict, and early parental loss are more common in the childhood histories of those with borderline personality dis- order. Common co-occurring disorders include depressive and bipolar disorders, sub- stance use disorders, eating disorders (notably bulimia nervosa), posttraumatic stress disorder, and attention—deficit/hyperactivity disorder. Borderline personality disorder also frequently co-occurs with the other personality disorders. The median population prevalence of borderline personality disorder is estimated to be 1.6% but may be as high as 5.9%. The prevalence of borderline personality disorder is about 6% in primary care settings, about 10% among individuals seen in outpatient mental health clinics, and about 20% among psychiatric inpatients. The prevalence of borderline personality disorder may decrease in older age groups. There is considerable variability in the course of borderline personality disorder. The most common pattern is one of chronic instability in early adulthood, with episodes of serious affective and impulsive dyscontrol and high levels of use of health and mental health re— sources. The impairment from the disorder and the risk of suicide are greatest in the young-adult years and gradually wane with advancing age. Although the tendency to- ward intense emotions, impulsivity, and intensity in relationships is often lifelong, indi- sometime during the first year. During their 305 and 40s, the majority of individuals with this disorder attain greater stability in their relationships and vocational functioning. Fol- low-up studies of individuals identified through outpatient mental health clinics indicate that after about 10 years, as many as half of the individuals no longer have a pattern of be- havior that meets full criteria for borderline personality disorder. Genetic and physiological. Borderline personality disorder is about five times more common among first-degree biological relatives of those with the disorder than in the gen- eral population. There is also an increased familial risk for substance use disorders, anti- social personality disorder, and depressive or bipolar disorders. The pattern of behavior seen in borderline personality disorder has been identified in many settings around the world. Adolescents and young adults with identity problems (especially give the impression of borderline personality disorder. Such situations are characterized by emotional instability, ”existential” dilemmas, uncertainty, anxiety-provoking choices, con- flicts about sexual orientation, and competing social pressures to decide on careers. Borderline personality disorder is diagnosed predominantly (about 75%) in females. Depressive and bipolar disorders. Borderline personality disorder often co-occurs with depressive or bipolar disorders, and when criteria for both are met, both may be diagnosed. Because the cross-sectional presentation of borderline personality disorder can be mimicked by an episode of depressive or bipolar disorder, the clinician should avoid giving an addi- tional diagnosis of borderline personality disorder based only on cross-sectional presenta- tion without having documented that the pattern of behavior had an early onset and a long- standing course. Other personality disorders. Other personality disorders may be confused with border- line personality disorder because they have certain features in common. It is therefore im- portant to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to borderline personality disorder, all can be diag— nosed. Although histrionic personality disorder can also be characterized by attention seek- ing, manipulative behavior, and rapidly shifting emotions, borderline personality disorder is distinguished by self-destructiveness, angry disruptions in close relationships, and chronic feelings of deep emptiness and loneliness. Paranoid ideas or illusions may be pres- ent in both borderline personality disorder and schizotypal personality disorder, but these symptoms are more transient, interpersonally reactive, and responsive to external structur- ing in borderline personality disorder. Although paranoid personality disorder and narcis- sistic personality disorder may also be characterized by an angry reaction to minor stimuli, the relative stability of self-image, as well as the relative lack of self-destmctiveness, impul- sivity, and abandonment concerns, distinguishes these disorders from borderline person- ality disorder. Although antisocial personality disorder and borderline personality disorder are both characterized by manipulative behavior, individuals with antisocial personality disorder are manipulative to gain profit, power, or some other material gratification, whereas the goal in borderline personality disorder is directed more toward gaining the con— cern of caretakers. Both dependent personality disorder and borderline personality disorder are characterized by fear of abandonment; however, the individual with borderline person- ality disorder reacts to abandonment with feelings of emotional emptiness, rage, and de- mands, whereas the individual with dependent personality disorder reacts with increasing appeasement and submissiveness and urgently seeks a replacement relationship to provide caregiving and support. Borderline personality disorder can further be distinguished from dependent personality disorder by the typical pattern of Lmstable and intense relationships. Personality change due to another medical condition. Borderline personality disor- der must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Borderline personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Identity problems. Borderline personality disorder should be distinguished from an identity problem, which is reserved for identity concerns related to a developmental phase (e.g., adolescence) and does not qualify as a mental disorder. .. Histrionic Personality DisorderDiagnostic Criteria 301.50 (F60.4)A pervasive pattern of excessive emotionality and attention seeking, beginning by early adult- hood and present in a variety of contexts, as indicated by five (or more) of the following: 1. Is uncomfortable in situations in which he or she is not the center of attention. 2. Interaction with others is often characterized by inappropriate sexually seductive or provocative behavior. Displays rapidly shifting and shallow expression of emotions.Consistently uses physical appearance to draw attention to self.Has a style of speech that is excessively impressionistic and lacking in detail. Shows self-dramatization, theatricality, and exaggerated expression of emotion.Is suggestible (i.e., easily influenced by others or circumstances).Considers relationships to be more intimate than they actually are. The essential feature of histrionic personality disorder is pervasive and excessive emotion- ality and attention-seeking behavior. This pattern begins by early adulthood and is pres- ent in a variety of contexts. Individuals with histrionic personality disorder are uncomfortable or feel unappreci- ated when they are not the center of attention (Criterion 1). Often lively and dramatic, they tend to draw attention to themselves and may initially charm new acquaintances by their enthusiasm, apparent openness, or flirtatiousness. These qualities wear thin, however, as these individuals continually demand to be the center of attention. They commandeer the role of ”the life of the party." If they are not the center of attention, they may do something dramatic (e.g., make up stories, create a scene) to draw the focus of attention to themselves. This need is often apparent in their behavior with a clinician (e.g., being flattering, bring- ing gifts, providing dramatic descriptions of physical and psychological symptoms that are replaced by new symptoms each visit). The appearance and behavior of individuals with this disorder are often inappropri- ately sexually provocative or seductive (Criterion 2). This behavior not only is directed to- ward persons in whom the individual has a sexual or romantic interest but also occurs in a wide variety of social, occupational, and professional relationships beyond what is ap- propriate for the social context. Emotional expression may be shallow and rapidly shifting (Criterion 3). Individuals with this disorder consistently use physical appearance to draw attention to themselves (Criterion 4). They are overly concerned with impressing others by their appearance and expend an excessive amount of time, energy, and money on clothes and grooming. They may “fish for compliments” regarding appearance and may be easily they regard as unflattering. These individuals have a style of speech that is excessively impressionistic and lacking in detail (Criterion 5). Strong opinions are expressed with dramatic flair, but underlying reasons are usually vague and diffuse, without supporting facts and details. For example, an individual with histrionic personality disorder may comment that a certain individual is a wonderful human being, yet be unable to provide any specific examples of good qual- ities to support this opinion. Individuals with this disorder are characterized by self- dramatization, theatricality, and an exaggerated expression of emotion (Criterion 6). They may embarrass friends and acquaintances by an excessive public display of emotions (e.g., embracing casual acquaintances with excessive ardor, sobbing uncontrollably on minor sentimental occasions, having temper tantrums). However, their emotions often seem to be turned on and off too quickly to be deeply felt, which may lead others to accuse the in- dividual of faking these feelings. Individuals with histrionic personality disorder have a high degree of suggestibility (Cri- terion 7). Their opinions and feelings are easily influenced by others and by current fads. They may be overly trusting, especially of strong authority figures whom they see as mag- ically solving their problems. They have a tendency to play hunches and to adopt convic- tions quickly. Individuals with this disorder often consider relationships more intimate than they actually are, describing almost every acquaintance as ”my dear, dear friend” or referring to physicians met only once or twice under professional circumstances by their first names (Criterion 8). Individuals with histrionic personality disorder may have difficulty achieving emotional in- timacy in romantic or sexual relationships. Without being aware of it, they often act out a role (e.g., ”victim” or ”princess”) in their relationships to others. They may seek to control their partner through emotional manipulation or seductiveness on one level, while display- ing a marked dependency on them at another level. Individuals with this disorder often have impaired relationships with same—sex friends because their sexually provocative inter- personal style may seem a threat to their friends’ relationships. These individuals may also alienate friends with demands for constant attention. They often become depressed and up- set when they are not the center of attention. They may crave novelty, stimulation, and ex- citement and have a tendency to become bored with their usual routine. These individuals are often intolerant of, or frustrated by, situations that involve delayed gratification, and their actions are often directed at obtaining immediate satisfaction. Although they often ini- tiate a job or project with great enthusiasm, their interest may lag quickly. Longer-term re- lationships may be neglected to make way for the excitement of new relationships. The actual risk of suicide is not known, but clinical experience suggests that individu- als with this disorder are at increased risk for suicidal gestures and threats to get attention and coerce better caregiving. Histrionic personality disorder has been associated with higher rates of somatic symptom disorder, conversion disorder (functional neurological symptom disorder), and major depressive disorder. Borderline, narcissistic, antisocial, and dependent personality disorders often co—occur. Data from the 2001—2002 National Epidemiologic Survey on Alcohol and Related Condi- tions suggest a prevalence of histrionic personality of 1.84%. Norms for interpersonal behavior, personal appearance, and emotional expressiveness vary widely across cultures, genders, and age groups. Before considering the various traits (e.g., emotionality, seductiveness, dramatic interpersonal style, novelty seeking, sociabil- ity, charm, impressionability, a tendency to somatization) to be evidence of histrionic per- sonality disorder, it is important to evaluate whether they cause clinically significant impairment or distress. In clinical settings, this disorder has been diagnosed more frequently in females; however, the sex ratio is not significantly different from the sex ratio of females within the respective clinical setting. In contrast, some studies using structured assessments report similar prev- alence rates among males and females. Other personality disorders and personality traits. Other personality disorders may be confused with histrionic personality disorder because they have certain features in common. It is therefore important to distinguish among these disorders based on differ- ences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to histrionic personal- ity disorder, all can be diagnosed. Although borderline personality disorder can also be characterized by attention seeking, manipulative behavior, and rapidly shifting emotions, it is distinguished by self—destructiveness, angry disruptions in close relationships, and chronic feelings of deep emptiness and identity disturbance. Individuals with antisocial personality disorder and histrionic personality disorder share a tendency to be impulsive, superficial, excitement seeking, reckless, seductive, and manipulative, but persons with histrionic personality disorder tend to be more exaggerated in their emotions and do not characteristically engage in antisocial behaviors. Individuals with histrionic personality disorder are manipulative to gain nurturance, whereas those with antisocial personality disorder are manipulative to gain profit, power, or some other material gratification. Al- though individuals with narcissistic personality disorder also crave attention from others, they usually want praise for their ”superiority,” whereas individuals with histrionic per- sonality disorder are willing to be viewed as fragile or dependent if this is instrumental in getting attention. Individuals with narcissistic personality disorder may exaggerate the intimacy of their relationships with other people, but they are more apt to emphasize the ”VIP” status or wealth of their friends. In dependent personality disorder, the individual is excessively dependent on others for praise and guidance, but is without the flamboyant, exaggerated, emotional features of individuals with histrionic personality disorder. Many individuals may display histrionic personality traits. Only when these traits are inflexible, maladaptive, and persisting and cause significant functional impairment or subjective distress do they constitute histrionic personality disorder. Personality change due to another medical condition. Histrionic personality disorder must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. The disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Diagnostic Criteria 301.81 (F60.81)A pervasive pattern of grandiosity (in fantasy or behavior), need for admiration. and lack of empathy, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following: 1. Has a grandiose sense of seIf-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements). 2. Is preoccupied with fantasies of unlimited success, power, brilliance, beauty. or ideal love. 3. Believes that he or she is “special” and unique and can only be understood by, or should associate with, other special or high-status people (or institutions). 4. Requires excessive admiration.5. Has a sense of entitlement (i.e., unreasonable expectations of especially favorable treatment or automatic compliance with his or her expectations). 6. Is interpersonally exploitative (i.e., takes advantage of others to achieve his or her own ends). 7. Lacks empathy: is unwilling to recognize or identify with the feelings and needs of others. Is often envious of others or believes that others are envious of him or her. 9. Shows arrogant, haughty behaviors or attitudes.The essential feature of narcissistic personality disorder is a pervasive pattern of grandi- osity, need for admiration, and lack of empathy that begins by early adulthood and is pres- ent in a variety of contexts. Individuals with this disorder have a grandiose sense of self-importance (Criterion 1). They routinely overestimate their abilities and inflate their accomplishments, often appealing boastful and pretentious. They may blithely assume that others attribute the same value to their efforts and may be surprised when the praise they expect and feel they deserve is not forthcoming. Often implicit in the inflated judgments of their own accomplishments is an un- derestimation (devaluation) of the contributions of others. Individuals with narcissistic per- sonality disorder are often preoccupied with fantasies of unlimited success, power, brilliance, beauty, or ideal love (Criterion 2). They may ruminate about “long overdue" admiration and privilege and compare themselves favorably with famous or privileged people. Individuals with narcissistic personality disorder believe that they are superior, spe- cial, or unique and expect others to recognize them as such (Criterion 3). They may feel that they can only be understood by, and should only associate with, other people who are special or of high status and may attribute “unique,” “perfect,” or "gifted” qualities to those with whom they associate. Individuals with this disorder believe that their needs are spe- cial and beyond the ken of ordinary people. Their own self—esteem is enhanced (i.e., ”mir- rored”) by the idealized value that they assign to those with whom they associate. They are likely to insist on having only the ”top" person (doctor, lawyer, hairdresser, instructor) or being affiliated with the ”best" institutions but may devalue the credentials of those who dis- appoint them. Individuals with this disorder generally require excessive admiration (Criterion 4). Their self—esteem is almost invariably very fragile. They may be preoccupied with how well they are doing and how favorably they are regarded by others. This often takes the form of a need for constant attention and admiration. They may expect their arrival to be greeted with great fanfare and are astonished if others do not covet their possessions. They may constantly fish for compliments, often with great charm. A sense of entitlement is evident in these individ- uals’ unreasonable expectation of especially favorable treatment (Criterion 5). They expect to be catered to and are puzzled or furious when this does not happen. For example, they may assume that they do not have to wait in line and that their priorities are so important that others should defer to them, and then get irritated when others fail to assist ”in their very important work.” This sense of entitlement, combined with a lack of sensitivity to the wants and needs of others, may result in the conscious or unwitting exploitation of others (Criterion 6). They expect to be given whatever they want or feel they need, no matter what it might mean to others. For example, these individuals may expect great dedication from others and may overwork them without regard for the impact on their lives. They tend to form friendships or romantic relationships only if the other person seems likely to advance their purposes or otherwise enhance their self—esteem. They often usurp special privileges and extra resources that they believe they deserve because they are so special. Individuals with narcissistic personality disorder generally have a lack of empathy and have difficulty recognizing the desires, subjective experiences, and feelings of others (Crite- rion 7). They may assume that others are totally concerned about their welfare. They tend to discuss their own concerns in inappropriate and lengthy detail, while failing to recognize that others also have feelings and needs. They are often contemptuous and impatient with others who talk about their own problems and concerns. These individuals may be oblivious to the hurt their remarks may inflict (e.g., exuberantly telling a former lover that ”I am now in the relationshii) of a lifetimel”; boasting of health in front of someone who is sick). When recognized, the needs, desires, or feelings of others are likely to be viewed disparagingly as signs of weakness or vulnerability. Those who relate to individuals with narcissistic person- ality disorder typically find an emotional coldness and lack of reciprocal interest. These individuals are often envious of others or believe that others are envious of them (Criterion 8). They may begrudge others their successes or possessions, feeling that they better deserve those achievements, admiration, or priw'leges. They may harshly devalue the contri- butions of others, particularly when those individuals have received acknowledgment or praise for their accomplishments. Arrogant, haughty behaviors characterize these individuals; they often display snobbish, disdainful, or patronizing attitudes (Criterion 9). For example, an individual with this disorder may complain about a clumsy waiter’s ”rudeness” or ”stupidity” or conclude a medical evaluation with a condescending evaluation of the physician. Vulnerability in self-esteem makes individuals with narcissistic personality disorder very sensitive to “injury” from criticism or defeat. Although they may not show it outwardly, criticism may haunt these individuals and may leave them feeling humiliated, degraded, hollow, and empty. They may react with disdain, rage, or defiant counterattack. Such ex- periences often lead to social withdrawal or an appearance of humility that may mask and protect the grandiosity. Interpersonal relations are typically impaired because of problems derived from entitlement, the need for admiration, and the relative disregard for the sen— sitivities of others. Though overweening ambition and confidence may lead to high achievement, performance may be disrupted because of intolerance of criticism or defeat. Sometimes vocational functioning can be very low, reflecting an unwillingness to take a risk in competitive or other situations in which defeat is possible. Sustained feelings of shame or humiliation and the attendant self—criticism may be associated with social with- drawal, depressed mood, and persistent depressive disorder (dysthymia) or major de- pressive disorder. In contrast, sustained periods of grandiosity may be associated with a hypomanic mood. Narcissistic personality disorder is also associated with anorexia ner- vosa and substance use disorders (especially related to cocaine). Histrionic, borderline, antisocial, and paranoid personality disorders may be associated with narcissistic person- ality disorder. Prevalence estimates for narcissistic personality disorder, based on DSM-IV definitions, range from 0% to 6.2% in community samples. dicate that the individual will go on to have narcissistic personality disorder. Individuals with narcissistic personality disorder may have special difficulties adjusting to the onset of physical and occupational limitations that are inherent in the aging process. Of those diagnosed with narcissistic personality disorder, 50%—75% are male. Other personality disorders and personality traits. Other personality disorders may be confused with narcissistic personality disorder because they have certain features in common. It is, therefore, important to distinguish among these disorders based on differ- ences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to narcissistic person- ality disorder, all can be diagnosed. The most useful feature in discriminating narcissistic personality disorder from histrionic, antisocial, and borderline personality disorders, in Which the interactive styles are coquettish, callous, and needy, respectively, is the grandi- osity characteristic of narcissistic personality disorder. The relative stability of self-image as well as the relative lack of self—destructiveness, impulsivity, and abandonment concerns der. Excessive pride in achievements, a relative lack of emotional display, and disdain for personality disorder. Although individuals with borderline, histrionic, and narcissistic personality disorders may require much attention, those with narcissistic personality dis- order specifically need that attention to be admiring. Individuals with antisocial and nar- cissistic personality disorders share a tendency to be tough-minded, glib, superficial, exploitative, and unempathic. However, narcissistic personality disorder does not neces- sarily include characteristics of impulsivity, aggression, and deceit. In addition, individu- als with antisocial personality disorder may not be as needy of the admiration and envy of others, and persons with narcissistic personality disorder usually lack the history of con- duct disorder in childhood or criminal behavior in adulthood. In both narcissistic person- ality disorder and obsessive-compulsive personality disorder, the individual may profess a commitment to perfectionism and believe that others cannot do things as well. In con- trast to the accompanying self—criticism of those with obsessive-compulsive personality disorder, individuals with narcissistic personality disorder are more likely to believe that they have achieved perfection. Suspiciousness and social withdrawal usually distinguish those with schizotypal or paranoid personality disorder from those with narcissistic per- sonality disorder. When these qualities are present in individuals with narcissistic person- ality disorder, they derive primarily from fears of having imperfections or flaws revealed. narcissistic. Only when these traits are inflexible, maladaptive, and persisting and cause sonality disorder. Mania or hypomania. Grandiosity may emerge as part of manic or hypomanic episodes, but the association with mood change or functional impairments helps distinguish these episodes from narcissistic personality disorder. Substance use disorders. Narcissistic personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Diagnostic Criteria 301.82 (F60.6)A pervasive pattern of social inhibition, feelings of inadequacy, and hypersensitivity to neg- ative evaluation, beginning by early adulthood and present in a variety of contexts, as in- dicated by four (or more) of the following: 1. Avoids occupational activities that involve significant interpersonal contact because of fears of criticism, disapproval, or rejection. 2. Is unwilling to get involved with people unless certain of being liked. Shows restraint within intimate relationships because of the fear of being shamed or ridiculed. ‘ ls preoccupied with being criticized or rejected in social situations. ls inhibited in new interpersonal situations because of feelings of inadequacy. Views self as socially inept, personally unappealing, or inferior to others. ls unusually reluctant to take personal risks or to engage in any new activities because they may prove embarrassing. The essential feature of avoidant personality disorder is a pervasive pattern of social inhi- bition, feelings of inadequacy, and hypersensitivity to negative evaluation that begins by early adulthood and is present in a variety of contexts. Individuals with avoidant personality disorder avoid work activities that involve sig- nificant interpersonal contact because of fears of criticism, disapproval, or rejection (Cri- terion 1). Offers of job promotions may be declined because the new responsibilities might result in criticism from co-workers. These individuals avoid making new friends unless they are certain they will be liked and accepted without criticism (Criterion 2). Until they pass stringent tests proving the contrary, other people are assumed to be critical and dis- approving. Individuals with this disorder will not join in group activities unless there are repeated and generous offers of support and nurturance. Interpersonal intimacy is often difficult for these individuals, although they are able to establish intimate relationships when there is assurance of uncritical acceptance. They may act with restraint, have diffi- culty talking about themselves, and withhold intimate feelings for fear of being exposed, ridiculed, or shamed (Criterion 3). Because individuals With this disorder are preoccupied with being criticized or re- jected in social situations, they may have a markedly low threshold for detecting such re- actions (Criterion 4). If someone is even slightly disapproving or critical, they may feel extremely hurt. They tend to be shy, quiet, inhibited, and “invisible" because of the fear that any attention would be degrading or rejecting. They expect that no matter what they say, others will see it as "wrong,” and so they may say nothing at all. They react strongly to subtle cues that are suggestive of mockery or derision. Despite their longing to be active participants in social life, they fear placing their welfare in the hands of others. Individuals with avoidant personality disorder are inhibited in new interpersonal situations because they feel inadequate and have low self—esteem (Criterion 5). Doubts concerning social actions with strangers. These individuals believe themselves to be socially inept, person- ally unappealing, or inferior to others (Criterion 6). They are unusually reluctant to take personal risks or to engage in any new activities because these may prove embarrassing (Criterion 7). They are prone to exaggerate the potential dangers of ordinary situations, and a restricted lifestyle may result from their need for certainty and security. Someone with this disorder may cancel a job interview for fear of being embarrassed by not dressing appropriately. Marginal somatic symptoms or other problems may become the reason for avoiding new activities. Individuals with avoidant personality disorder often vigilantly appraise the movements and expressions of those with whom they come into contact. Their fearful and tense de- meanor may elicit ridicule and derision from others, which in turn confirms their self- doubts. These individuals are very anxious about the possibility that they will react to crit- icism with blushing or crying. They are described by others as being ”shy,” ”timid,” ”lonely,” and ”isolated." The major problems associated with this disorder occur in social and occupational functioning. The low self—esteem and hypersensitivity to rejection are associated with restricted interpersonal contacts. These individuals may become relatively crises. They desire affection and acceptance and may fantasize about idealized relation- ships with others. The avoidant behaviors can also adversely affect occupational function- ing because these individuals try to avoid the types of social situations that may be important for meeting the basic demands of the job or for advancement. Other disorders that are commonly diagnosed with avoidant personality disorder in- clude depressive, bipolar, and anxiety disorders, especially social anxiety disorder (social phobia). Avoidant personality disorder is often diagnosed with dependent personality disorder, because individuals with avoidant personality disorder become very attached to and dependent on those few other people with whom they are friends. Avoidant per- sonality disorder also tends to be diagnosed with borderline personality disorder and with the Cluster A personality disorders (i.e., paranoid, schizoid, or schizotypal personality disorders). Data from the 2001—2002 National Epidemiologic Survey on Alcohol and Related Condi- tions suggest a prevalence of about 2.4% for avoidant personality disorder. The avoidant behavior often starts in infancy or childhood with shyness, isolation, and fear of strangers and new situations. Although shyness in childhood is a common precur- sor of avoidant personality disorder, in most individuals it tends to gradually dissipate as they get older. In contrast, individuals who go on to develop avoidant personality disor— der may become increasingly shy and avoidant during adolescence and early adulthood, when social relationships with new people become especially important. There is some evidence that in adults, avoidant personality disorder tends to become less evident or to remit with age. This diagnosis should be used with great caution in children and adoles- cents, for whom shy and avoidant behavior may be developmentally appropriate. There may be variation in the degree to which different cultural and ethnic groups regard diffidence and avoidance as appropriate. Moreover, avoidant behavior may be the result of problems in acculturation following immigration. Avoidant personality disorder appears to be equally frequent in males and females. Anxiety disorders. There appears to be a great deal of overlap between avoidant person- ality disorder and social anxiety disorder (social phobia), so much so that they may be alternative conceptualizations of the same or similar conditions. Avoidance also character- izes both avoidant personality disorder and agoraphobia, and they often co-occur. Other personality disorders and personality traits. Other personality disorders may be confused with avoidant personality disorder because they have certain features in com- mon. It is, therefore, important to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to avoidant personality dis- order, all can be diagnosed. Both avoidant personality disorder and dependent personal- ity disorder are characterized by feelings of inadequacy, hypersensitivity to criticism, and a need for reassurance. Although the primary focus of concern in avoidant personality disorder is avoidance of humiliation and rejection, in dependent personality disorder the focus is on being taken care of. However, avoidant personality disorder and dependent personality disorder are particularly likely to co—occur. Like avoidant personality disor- der, schizoid personality disorder and schizotypal personality disorder are characterized by social isolation. However, individuals with avoidant personality disorder want to have relationships with others and feel their loneliness deeply, whereas those with schizoid or schizotypal personality disorder may be content with and even prefer their social isola- tion. Paranoid personality disorder and avoidant personality disorder are both character- ized by a reluctance to confide in others. However, in avoidant personality disorder, this reluctance is attributable more to a fear of being embarrassed or being found inadequate than to a fear of others’ malicious intent. Many individuals display avoidant personality traits. Only when these traits are in- flexible, maladaptive, and persisting and cause significant functional impairment or sub- jective distress do they constitute avoidant personality disorder. Personality change due to another medical condition. Avoidant personality disorder must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Avoidant personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Diagnostic Criteria 301.6 (F60.7)A pervasive and excessive need to be taken care of that leads to submissive and clinging behavior and fears of separation, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following: 1. Has difficulty making everyday decisions without an excessive amount of advice and reassurance from others. 2. Needs others to assume responsibility for most major areas of his or her life. 3. Has difficulty expressing disagreement with others because of fear of loss of support or approval. (Note: Do not include realistic fears of retribution.) 4. Has difficulty initiating projects or doing things on his or her own (because of a lack of self-confidence in judgment or abilities rather than a lack of motivation or energy). 5. Goes to excessive lengths to obtain nurturance and support from others, to the point of volunteering to do things that are unpleasant. 6. Feels uncomfortable or helpless when alone because of exaggerated fears of being unable to care for himself or herself. 7. Urgently seeks another relationship as a source of care and support when a close re- lationship ends. 8. Is unrealistically preoccupied with fears of being left to take care of himself or herself. The essential feature of dependent personality disorder is a pervasive and excessive need to be taken care of that leads to submissive and clinging behavior and fears of separation. This pattern begins by early adulthood and is present in a variety of contexts. The dependent and submissive behaviors are designed to elicit caregiving and arise from a self—perception of being unable to function adequately without the help of others. Individuals with dependent personality disorder have great difficulty making every- day decisions (e.g., what color shirt to wear to work or whether to carry an umbrella) without an excessive amount of advice and reassurance from others (Criterion 1). These individu- als tend to be passive and to allow other people (often a single other person) to take the ini- tiative and assume responsibility for most major areas of their lives (Criterion 2). Adults with this disorder typically depend on a parent or spouse to decide where they should live, what kind of job they should have, and which neighbors to befriend. Adolescents with this disorder may allow their parent(s) to decide what they should wear, with whom they should associate, how they should spend their free time, and what school or college they should attend. This need for others to assume responsibility goes beyond age-appro- priate and situation-appropriate requests for assistance from others (e.g., the specific needs of children, elderly persons, and handicapped persons). Dependent personality dis- order may occur in an individual who has a serious medical condition or disability, but in such cases the difficulty in taking responsibility must go beyond what would normally be associated with that condition or disability. Because they fear losing support or approval, individuals with dependent personality disorder often have difficulty expressing disagreement with other individuals, especially those on whom they are dependent (Criterion 3). These individuals feel so unable to func- tion alone that they will agree with things that they feel are wrong rather than risk losing the help of those to whom they look for guidance. They do not get appropriately angry at others whose support and nurturance they need for fear of alienating them. If the individ- ual’s concerns regarding the consequences of expressing disagreement are realistic (e.g., realistic fears of retribution from an abusive spouse), the behavior should not be consid- ered to be evidence of dependent personality disorder. Individuals with this disorder have difficulty initiating projects or doing things inde- pendently (Criterion 4). They lack self—confidence and believe that they need help to begin and carry through tasks. They will wait for others to start things because they believe that as a rule others can do them better. These individuals are convinced that they are incapable of functioning independently and present themselves as inept and requiring constant as- sistance. They are, however, likely to function adequately if given the assurance that some- one else is supervising and approving. There may be a fear of becoming or appearing to be more competent, because they may believe that this will lead to abandonment. Because they rely on others to handle their problems, they often do not learn the skills of indepen- dent living, thus perpetuating dependency. Individuals with dependent personality disorder may go to excessive lengths to obtain nurturance and support from others, even to the point of volunteering for unpleasant tasks if such behavior will bring the care they need (Criterion 5). They are willing to submit to what others want, even if the demands are unreasonable. Their need to maintain an im- portant bond will often result in imbalanced or distorted relationships. They may make ex- traordinary self—sacrifices or tolerate verbal, physical, or sexual abuse. (It should be noted that this behavior should be considered evidence of dependent personality disorder only when it can clearly be established that other options are available to the individual.) Indi- viduals with this disorder feel uncomfortable or helpless when alone, because of their ex— aggerated fears of being unable to care for themselves (Criterion 6). They will "tag along" with important others just to avoid being alone, even if they are not interested or involved in what is happening. When a close relationship ends (e.g., a breakup with a lover; the death of a caregiver), in- dividuals with dependent personality disorder may urgently seek another relationship to provide the care and support they need (Criterion 7). Their belief that they are unable to function in the absence of a close relationship motivates these individuals to become quickly and indiscriminately attached to another individual. Individuals with this disorder are often preoccupied with fears of being left to care for themselves (Criterion 8). They see themselves as so totally dependent on the advice and help of an important other person that they worry about being abandoned by that person when there are no grounds to justify such fears. To be considered as evidence of this criterion, the fears must be excessive and unrealistic. For ex- ample, an elderly man with cancer who moves into his son’s household for care is exhibiting dependent behavior that is appropriate given this person’s life circumstances. Individuals with dependent personality disorder are often characterized by pessimism and self—doubt, tend to belittle their abilities and assets, and may constantly refer to them- selves as “stupid.” They take criticism and disapproval as proof of their worthlessness and lose faith in themselves. They may seek overprotection and dominance from others. Oc— cupational functioning may be impaired if independent initiative is required. They may avoid positions of responsibility and become anxious when faced with decisions. Social re- lations tend to be limited to those few people on whom the individual is dependent. There may be an increased risk of depressive disorders, anxiety disorders, and adjustment dis- orders. Dependent personality disorder often co-occurs with other personality disorders, especially borderline, avoidant, and histrionic personality disorders. Chronic physical ill- ness or separation anxiety disorder in childhood or adolescence may predispose the indi- vidual to the development of this disorder. Data from the 2001—2002 National Epidemiologic Survey on Alcohol and Related Condi- tions yielded an estimated prevalence of dependent personality disorder of 0.49%, and de- pendent personality was estimated, based on a probability subsample from Part II of the National Comorbidity Survey Replication, to be 0.6%.This diagnosis should be used with great caution, if at all, in children and adolescents, for whom dependent behavior may be developmentally appropriate. The degree to which dependent behaviors are considered to be appropriate varies sub- stantially across different age and sociocultural groups. Age and cultural factors need to be considered in evaluating the diagnostic threshold of each criterion. Dependent behav— ior should be considered characteristic of the disorder only when it is clearly in excess of the individual’s cultural norms or reflects unrealistic concerns. An emphasis on passivity, politeness, and deferential treatment is characteristic of some societies and may be mis- interpreted as traits of dependent personality disorder. Similarly, societies may differen— tially foster and discourage dependent behavior in males and females. In clinical settings, dependent personality disorder has been diagnosed more frequently in females, although some studies report similar prevalence rates among males and females. Other mental disorders and medical conditions. Dependent personality disorder must be distinguished from dependency arising as a consequence of other mental disorders (e.g., depressive disorders, panic disorder, agoraphobia) and as a result of other medical conditions. Other personality disorders and personality traits. Other personality disorders may be confused with dependent personality disorder because they have certain features in com- mon. It is therefore important to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet cri- teria for one or more personality disorders in addition to dependent personality disorder, all can be diagnosed. Although many personality disorders are characterized by dependent features, dependent personality disorder can be distinguished by its predominantly submis- sive, reactive, and clinging behavior. Both dependent personality disorder and borderline personality disorder are characterized by fear of abandonment; however, the individual with borderline personality disorder reacts to abandonment with feelings of emotional emp- tiness, rage, and demands, whereas the individual with dependent personality disorder re- acts with increasing appeasement and submissiveness and urgently seeks a replacement relationship to provide caregiving and support. Borderline personality disorder can further be distinguished from dependent personality disorder by a typical pattern of unstable and intense relationships. Individuals with histrionic personality disorder, like those with de- pendent personality disorder, have a strong need for reassurance and approval and may ap- pear childlike and clinging. However, unlike dependent personality disorder, which is characterized by self-effacing and docile behavior, histrionic personality disorder is charac- terized by gregarious flamboyance with active demands for attention. Both dependent personality disorder and avoidant personality disorder are characterized by feelings of in- adequacy, hypersensitivity to criticism, and a need for reassurance; however, individuals with avoidant personality disorder have such a strong fear of humiliation and rejection that they withdraw until they are certain they will be accepted. In contrast, individuals with de- pendent personality disorder have a pattern of seeking and maintaining connections to im- portant others, rather than avoiding and withdrawing from relationships. Many individuals display dependent personality traits. Only when these traits are in- flexible, maladaptive, and persisting and cause significant functional impairment or sub— jective distress do they constitute dependent personality disorder. Personality change due to another medical condition. Dependent personality disor- der must be distinguished from personality change due to another medical condition, in which the traits that emerge are attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Dependent personality disorder must also be distinguished from symptoms that may develop in association with persistent substance use. Diagnostic Criteria 301.4 (F60.5)A pervasive pattern of preoccupation with orderliness, perfectionism, and mental and in- terpersonal control. at the expense of flexibility, openness, and efficiency, beginning by early adulthood and present in a variety of contexts. as indicated by four (or more) of the following: 1. Is preoccupied with details. rules. lists, order, organization, or schedules to the extent that the major point of the activity is lost. 2. Shows perfectionism that interferes with task completion (e.g., is unable to complete a project because his or her own overly strict standards are not met). 3. Is excessively devoted to work and productivity to the exclusion of leisure activities and friendships (not accounted for by obvious economic necessity). 4. Is overconscientious, scrupulous, and inflexible about matters of morality, ethics, or values (not accounted for by cultural or religious identification). 5. Is unable to discard worn-out or worthless objects even when they have no sentimental value. 6. Is reluctant tb delegate tasks or to work with others unless they submit to exactly his or her way of doing things. 7. Adopts a miserly spending style toward both self and others; money is viewed as something to be hoarded for future catastrophes. 8. Shows rigidity and stubbornness.The essential feature of obsessive-compulsive personality disorder is a preoccupation with orderliness, perfectionism, and mental and interpersonal control, at the expense of flexibility, openness, and efficiency. This pattern begins by early adulthood and is present in a variety of contexts. Individuals with obsessive-compulsive personality disorder attempt to maintain a sense of control through painstaking attention to rules, trivial details, procedures, lists, schedules, or form to the extent that the major point of the activity is lost (Criterion 1). They are excessively careful and prone to repetition, paying extraordinary attention to detail and repeatedly checking for possible mistakes. They are oblivious to the fact that other people tend to become very annoyed at the delays and inconveniences that result from this behavior. For example, when such individuals misplace a list of things to be done, they will spend an inordinate amount of time looking for the list rather than spending a few moments re-creating it from memory and proceeding to accomplish the tasks. Time is poorly allocated, and the most important tasks are left to the last moment. The perfection- ism and self—imposed high standards of performance cause significant dysfunction and distress in these individuals. They may become so involved in making every detail of a project absolutely perfect that the project is never finished (Criterion 2). For example, the completion of a written report is delayed by numerous time-consuming rewrites that all come up short of ”perfection." Deadlines are missed, and aspects of the individual’s life that are not the current focus of activity may fall into disarray. Individuals with obsessive—compulsive personality disorder display excessive devotion to work and productivity to the exclusion of leisure activities and friendships (Criterion 3). This behavior is not accounted for by economic necessity. They often feel that they do not have time to take an evening or a weekend day off to go on an outing or to just relax. They may keep postponing a pleasurable activity, such as a vacation, so that it may never occur. When they do take time for leisure activities or vacations, they are very uncomfortable un- less they have taken along something to work on so they do not "waste time." There may be a great concentration on household chores (e.g., repeated excessive cleaning so that ”one could eat off the floor”). If they spend time with friends, it is likely to be in some kind of for- mally organized activity (e.g., sports). Hobbies or recreational activities are approached as serious tasks requiring careful organization and hard work to master. The emphasis is on perfect performance. These individuals turn play into a structured task (e.g., correcting an infant for not putting rings on the post in the right order; telling a toddler to ride his or her tri- cycle in a straight line; turning a baseball game into a harsh "lesson”). Individuals with obsessive-compulsive personality disorder may be excessively con- scientious, scrupulous, and inflexible about matters of morality, ethics, or values (Crite- rion 4). They may force themselves and others to follow rigid moral principles and very strict standards of performance. They may also be mercilessly self-critical about their own mistakes. Individuals with this disorder are rigidly deferential to authority and rules and insist on quite literal compliance, with no rule bending for extenuating circumstances. For example, the individual will not lend a quarter to a friend who needs one to make a tele- phone call because ”neither a borrower nor a lender be” or because it would be ”bad” for the person’s character. These qualities should not be accounted for by the individual’s culv tural or religious identification. Individuals with this disorder may be unable to discard worn-out or worthless objects, even when they have no sentimental value (Criterion 5). Often these individuals will ad- mit to being ”pack rats.” They regard discarding objects as wasteful because ”you never know when you might need something” and will become upset if someone tries to get rid of the things they have saved. Their spouses or roommates may complain about the amount of space taken up by old parts, magazines, broken appliances, and so on. Individuals with obsessive-compulsive personality disorder are reluctant to delegate tasks or to work with others (Criterion 6). They stubbornly and unreasonably insist that everything be done their way and that people conform to their way of doing things. They often give very detailed instructions about how things should be done (e.g., there is one and only one way to mow the lawn, wash the dishes, build a doghouse) and are surprised and irritated if others suggest creative alternatives. At other times they may reject offers of help even when behind schedule because they believe no one else can do it right. Individuals with this disorder may be miserly and stingy and maintain a standard of living far below what they can afford, believing that spending must be tightly controlled to provide for future catastrophes (Criterion 7). Obsessive-compulsive personality disorder is characterized by rigidity and stubbornness (Criterion 8). Individuals with this disorder are so concerned about having things done the one "correct” way that they have trouble going along with anyone else's ideas. These individuals plan ahead in meticulous detail and are unwilling to consider changes. Totally wrapped up in their own perspective, they have difficulty acknowledging the viewpoints of others. Friends and colleagues may be- come frustrated by this constant rigidity. Even when individuals with obsessive—compul- sive personality disorder recognize that it may be in their interest to compromise, they may stubbomly refuse to do so, arguing that it is ”the principle of the thing.” When rules and established procedures do not dictate the correct answer, decision making may become a time-consuming, often painful process. Individuals with obsessive- ority or what is the best way of doing some particular task that they may never get started on anything. They are prone to become upset or angry in situations in which they are not able to maintain control of their physical or interpersonal environment, although the an- ger is typically not expressed directly. For example, an individual may be angry when ser- vice in a restaurant is poor, but instead of complaining to the management, the individual ruminates about how much to leave as a tip. On other occasions, anger may be expressed with righteous indignation over a seemingly minor matter. Individuals with this disorder may be especially attentive to their relative status in dominance-submission relationships and may display excessive deference to an authority they respect and excessive resistance to authority they do not respect. Individuals with this disorder usually express affection in a highly controlled or stilted fashion and may be very uncomfortable in the presence of others who are emotionally ex- pressive. Their everyday relationships have a formal and serious quality, and they may be stiff in situations in which others would smile and be happy (e.g., greeting a lover at the airport). They carefully hold themselves back until they are sure that whatever they say will be perfect. They may be preoccupied with logic and intellect, and intolerant of affec- tive behavior in others. They often have difficulty expressing tender feelings, rarely pay- ing compliments. Individuals with this disorder may experience occupational difficulties and distress, particularly when confronted with new situations that demand flexibility and compromise. Individuals with anxiety disorders, including generalized anxiety disorder, social anx- iety disorder (social phobia), and specific phobias, and obsessive-compulsive disorder (OCD) have an increased likelihood of having a personality disturbance that meets criteria for ob- sessive-compulsive personality disorder. Even so, it appears that the majority of individ- uals with OCD do not have a pattern of behavior that meets criteria for this personality disorder. Many of the features of obsessive-compulsive personality disorder overlap with "type A" personality characteristics (e.g., preoccupation with work, competitiveness, time urgency), and these features may be present in people at risk for myocardial infarction. pressive and bipolar disorders and eating disorders.Obsessive-compulsive personality disorder is one of the most prevalent personality dis- orders in the general population, with estimated prevalence ranging from 2.1% to 7.9%. In assessing an individual for obsessive-compulsive personality disorder, the clinician should not include those behaviors that reflect habits, customs, or interpersonal styles that are culturally sanctioned by the individual’s reference group. Certain cultures place sub- stantial emphasis on work and productivity; the resulting behaviors in members of those societies need not be considered indications of obsessive-compulsive personality disorder. In systematic studies, obsessive—compulsive personality disorder appears to be diagnosed about twice as often among males. Obsessive-compulsive disorder. Despite the similarity in names, 0CD is usually easily distinguished from obsessive-compulsive personality disorder by the presence of true ob- sessions and compulsions in OCD. When criteria for both obsessive-compulsive person- ality disorder and 0CD are met, both diagnoses should be recorded. Hoarding disorder. A diagnosis of hoarding disorder should be considered especially when hoarding is extreme (e.g., accumulated stacks of worthless objects present a fire haz- ard and make it difficult for others to walk through the house). When criteria for both ob- sessive-compulsive personality disorder and hoarding disorder are met, both diagnoses should be recorded. Other personality disorders and personality traits. Other personality disorders may be confused with obsessive-compulsive personality disorder because they have certain features in common. It is, therefore, important to distinguish among these disorders based on differences in their characteristic features. However, if an individual has personality features that meet criteria for one or more personality disorders in addition to obsessive- compulsive personality disorder, all can be diagnosed. Individuals with narcissistic per- sonality disorder may also profess a commitment to perfectionism and believe that others cannot do things as well, but these individuals are more likely to believe that they have achieved perfection, whereas those with obsessive-compulsive personality disorder are usually self-critical. Individuals with narcissistic or antisocial personality disorder lack generosity but will indulge themselves, whereas those with obsessive-compulsive person- ality disorder adopt a miserly spending style toward both self and others. Both schizoid by an apparent formality and social detachment. In obsessive—compulsive personality dis— order, this stems from discomfort with emotions and excessive devotion to work, whereas in schizoid personality disorder there is a fundamental lack of capacity for intimacy. Obsessive—compulsive personality traits in moderation may be especially adaptive, par- ticularly in situations that reward high performance. Only when these traits are inflexible, maladaptive, and persisting and cause significant functional impairment or subjective dis- tress do they constitute obsessive-compulsive personality disorder. Personality change due to another medical condition. Obsessive-compulsive person- ality disorder must be distinguished from personality change due to another medical con- dition, in which the traits emerge attributable to the effects of another medical condition on the central nervous system. Substance use disorders. Obsessive-compulsive personality disorder must also be dis- tinguished from symptoms that may develop in association with persistent substance use. Due to Another Medical ConditionDiagnostic Criteria 310.1 (F07.0)A. A persistent personality disturbance that represents a change from the individual’s pre- vious characteristic personality pattern. Note: In children. the disturbance involves a marked deviation from normal devel- opment or a significant change in the child’s usual behavior patterns, lasting at least 1 year. B. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct pathophysiological consequence of another medical condition. C. The disturbance is not better explained by another mental disorder (including another mental disorder due to another medical condition). D. The disturbance does not occur exclusively during the course of a delirium. E. The disturbance causes clinically significant distress or impairment in social, occupa- tional, or other important areas of functioning. Specify whether:Labile type: If the predominant feature is affective lability.Disinhibited type: If the predominant feature is poor impulse control as evidenced by sexual indiscretions, etc. Aggressive type: If the predominant feature is aggressive behavior.Apathetic type: If the predominant feature is marked apathy and indifference. Paranoid type: It the predominant feature is suspiciousness or paranoid ideation. Other type: If the presentation is not characterized by any of the above subtypes. Combined type: If more than one feature predominates in the clinical picture. Coding note: Include the name of the other medical condition (e.g., 310.1 [FO7.0] person- ality change due to temporal lobe epilepsy). The other medical condition should be coded and listed separately immediately before the personality disorder due to another medical condition (e.g., 345.40 [640.209] temporal lobe epilepsy; 310.1 [FO7.0] personality change due to temporal lobe epilepsy). Personality Change Due to Another Medical Condition 683The particular personality change can be specified by indicating the symptom presenta— tion that predominates in the clinical presentation. The essential feature of a personality change due to another medical condition is a persis- tent personality disturbance that is judged to be due to the direct pathophysiological ef- fects of a medical condition. The personality disturbance represents a change from the individual’s previous characteristic personality pattern. In children, this condition may be manifested as a marked deviation from normal development rather than as a change in a stable personality pattern (Criterion A). There must be evidence from the history, physical examination, or laboratory findings that the personality change is the direct physiological consequence of another medical condition (Criterion B). The diagnosis is not given if the disturbance is better explained by another mental disorder (Criterion C). The diagnosis is not given if the disturbance occurs exclusively during the course of a delirium (Criterion D). The disturbance must also cause clinically significant distress or impairment in social, occupational, or other important areas of functioning (Criterion E). Common manifestations of the personality change include affective instability, poor impulse control, outbursts of aggression or rage grossly out of proportion to any precipi- tating psychosocial stressor, marked apathy, suspiciousness, or paranoid ideation. The phenomenology of the change is indicated using the subtypes listed in the criteria set. An individual with the disorder is often characterized by others as ”not himself [or herself].” Although it shares the term “personality” with the other personality disorders, this diag— nosis is distinct by virtue of its specific etiology, different phenomenology, and more vari- able onset and course. The clinical presentation in a given individual may depend on the nature and localiza- tion of the pathological process. For example, injury to the frontal lobes may yield symp- toms such as lack of judgment or foresight, facetiousness, disinhibition, and euphoria. Right hemisphere strokes have often been shown to evoke personality changes in asso- ciation with unilateral spatial neglect, anosognosia (i.e., inability of the individual to recognize a bodily or functional deficit, such as the existence of hemiparesis), motor im- persistence, and other neurological deficits. A variety of neurological and other medical conditions may cause personality changes, including central nervous system neoplasms, head trauma, cerebrovascular disease, Huntington’s disease, epilepsy, infectious conditions with central nervous system in- volvement (e.g., HIV), endocrine conditions (e.g., hypothyroidism, hypo- and hyperadre- nocorticism), and autoimmune conditions with central nervous system involvement (e.g., systemic lupus erythematosus). The associated physical examination findings, laboratory findings, and patterns of prevalence and onset reflect those of the neurological or other medical condition involved. Chronic medical conditions associated with pain and disability. Chronic medical con- ditions associated with pain and disability can also be associated with changes in person- ality. The diagnosis of personality change due to another medical condition is given only if a direct pathophysiological mechanism can be established. This diagnosis is not given if the change is due to a behavioral or psychological adjustment or response to another med- ical condition (e.g., dependent behaviors that result from a need for the assistance of others following a severe head trauma, cardiovascular disease, or dementia). Delirium or major neurocognitive disorder. Personality change is a frequently associated feature of a delirium or major neurocognitive disorder. A separate diagnosis of personal— ity change due to another medical condition is not given if the change occurs exclusively during the course of a delirium. However, the diagnosis of personality change due to an- other medical condition may be given in addition to the diagnosis of major neurocognitive disorder if the personality change is a prominent part of the clinical presentation. Another mental disorder due to another medical condition. The diagnosis of person- ality change due to another medical condition is not given if the disturbance is better ex- plained by another mental disorder due to another medical condition (e.g., depressive disorder due to brain tumor). Substance use disorders. Personality changes may also occur in the context of substance use disorders, especially if the disorder is longstanding. The clinician should inquire carefully about the nature and extent of substance use. If the clinician wishes to indicate an etiological re- lationship between the personality change and substance use, the unspecified category for the specific substance (e.g., unspecified stimulant-related disorder) can be used. Other mental disorders. Marked personality changes may also be an associated feature of other mental disorders (e.g., schizophrenia; delusional disorder; depressive and bipolar disorders; other specified and unspecified disruptive behavior, impulse-control, and con- duct disorders; panic disorder). However, in these disorders, no specific physiological fac- tor is judged to be etiologically related to the personality change. Other personality disorders. Personality change due to another medical condition can be distinguished from a personality disorder by the requirement for a clinically significant change from baseline personality functioning and the presence of a specific etiological medical condition. 301.89 (F60.89)This category applies to presentations in which symptoms characteristic of a personality disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the personality disorders diagnostic class. The other specified personality disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific personality disorder. This is done by recording “other specified personality disorder” followed by the specific reason (e.g., “mixed personality features”). 301.9 (F60.9)This category applies to presentations in which symptoms characteristic of a personality disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the personality disorders diagnostic class. The unspecified personality disorder category is used in situations in which the clinician chooses not to specify the rea- son that the criteria are not met for a specific personality disorder, and includes presenta- tions in which there is insufficient information to make a more specific diagnosis. Paraphilic disorders included in this manual are voyeuristic disorder (spying on others in private activities), exhibitionistic disorder (exposing the genitals), frotteuristic disorder (touching or rubbing against a nonconsenting individual), sexual masochism disorder (undergoing humiliation, bondage, or suffering), sexual sadism disorder (inflict- ing humiliation, bondage, or suffering), pedophilic disorder (sexual focus on children), fe- body parts), and transvestic disorder (engaging in sexually arousing cross-dressing). These disorders have traditionally been selected for specific listing and assignment of ex- plicit diagnostic criteria in DSM for two main reasons: they are relatively common, in re— lation to other paraphilic disorders, and some of them entail actions for their satisfaction that, because of their noxiousness or potential harm to others, are classed as criminal of- fenses. The eight listed disorders do not exhaust the list of possible paraphilic disorders. Many dozens of distinct paraphilias have been identified and named, and almost any of them could, by virtue of its negative consequences for the individual or for others, rise to the level of a paraphilic disorder. The diagnoses of the other specified and unspecified paraphilic disorders are therefore indispensable and will be required in many cases. In this chapter, the order of presentation of the listed paraphilic disorders generally corresponds to common classification schemes for these conditions. The first group of disorders is based on anomalous activity preferences. These disorders are subdivided into courtship disorders, which resemble distorted components of human courtship behavior (voyeuristic disorder, exhibitionistic disorder, and frotteuristic disorder), and algolagnic disorders, which involve pain and suffering (sexual masochism disorder and sexual sadism disorder). The second group of disorders is based on anomalous target preferences. These elsewhere (fetishistic disorder and transvestic disorder). The term paraphilia denotes any intense and persistent sexual interest other than sexual interest in genital stimulation or preparatory fondling with phenotypically normal, phys- ically mature, consenting human partners. In some circumstances, the criteria “intense and persistent” may be difficult to apply, such as in the assessment of persons who are very old or medically ill and who may not have ”intense” sexual interests of any kind. In such circumstances, the term paraphilia may be defined as any sexual interest greater than or equal to normophilic sexual interests. There are also specific paraphilias that are gen- erally better described as preferential sexual interests than as intense sexual interests. Some paraphilias primarily concern the individual’s erotic activities, and others pri- marily concern the individual’s erotic targets. Examples of the former would include in- tense and persistent interests in spanking, whipping, cutting, binding, or strangulating another person, or an interest in these activities that equals or exceeds the individual’s in— terest in copulation or equivalent interaction with another person. Examples of the latter would include intense or preferential sexual interest in children, corpses, or amputees (as a class), as well as intense or preferential interest in nonhuman animals, such as horses or dogs, or in inanimate objects, such as shoes or articles made of rubber. A paraphilic disorder is a paraphilia that is currently causing distress or impairment to the individual or a paraphilia whose satisfaction has entailed personal harm, or risk of harm, to others. A paraphilia is a necessary but not a sufficient condition for having a paraphilic dis- order, and a paraphilia by itself does not necessarily justify or require clinical intervention. In the diagnostic criteria set for each of the listed paraphilic disorders, Criterion A specifies the qualitative nature of the paraphilia (e.g., an erotic focus on children or on exposing the gen- itals to strangers), and Criterion B specifies the negative consequences of the paraphilia (i.e., distress, impairment, or harm to others). In keeping with the distinction between paraphilias and paraphilic disorders, the term diagnosis should be reserved for individuals who meet both Criteria A and B (i.e., individuals who have a paraphilic disorder). If an individual meets Cri- a benign paraphilia is discovered during the clinical investigation of some other condition— then the individual may be said to have that paraphilia but not a paraphilic disorder. It is not rare for an individual to manifest two or more paraphilias. In some cases, the para- philic foci are closely related and the connection between the paraphilias is intuitively com— prehensible (e.g., foot fetishism and shoe fetishism). In other cases, the connection between the paraphilias is not obvious, and the presence of multiple paraphilias may be coincidental or else related to some generalized vulnerability to anomalies of psychosexual development. In any event, comorbid diagnoses of separate paraphilic disorders may be warranted if more than one paraphilia is causing suffering to the individual or harm to others. Because of the two—pronged nature of diagnosing paraphilic disorders, clinician-rated or self-rated measures and severity assessments could address either the strength of the paraphilia itself or the seriousness of its consequences. Although the distress and impair- ment stipulated in the Criterion B are special in being the immediate or ultimate result of the paraphilia and not primarily the result of some other factor, the phenomena of reactive depression, anxiety, guilt, poor work history, impaired social relations, and so on are not unique in themselves and may be quantified with multipurpose measures of psychosocial functioning or quality of life. The most widely applicable framework for assessing the strength of a paraphilia itself is one in which examinees’ paraphilic sexual fantasies, urges, or behaviors are evaluated in relation to their normophilic sexual interests and behaviors. In a clinical interview or on self—administered questionnaires, examinees can be asked whether their paraphilic sexual fantasies, urges, or behaviors are weaker than, approximately equal to, or stronger than their normophilic sexual interests and behaviors. This same type of comparison can be, and usually is, employed in psychophysiological measures of sexual interest, such as pe- nile plethysmography in males or viewing time in males and females. Diagnostic Criteria 302.82 (F65.3)A. Over a period of at least 6 months, recurrent and intense sexual arousal from observ- ing an unsuspecting person who is naked, in the process of disrobing, or engaging in sexual activity. as manifested by fantasies, urges, or behaviors. B. The individual has acted on these sexual urges with a nonconsenting person, or the sexual urges or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. C. The individual experiencing the arousal andlor acting on the urges is at least 18 years of age. Specify if:In a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to engage in voyeuristic behavior are restricted. In full remission: The individual has not acted on the urges with a nonconsenting per- son, and there has been no distress or impairment in social, occupational, or other ar- eas of functioning, for at least 5 years while In an uncontrolled envrronment. The ”in full remission” specifier does not address the continued presence or absence of voyeurism per se, which may still be present after behaviors and distress have remitted. The diagnostic criteria for voyeuristic disorder can apply both to individuals who more or less freely disclose this paraphilic interest and to those who categorically deny any sexual arousal from observing an unsuspecting person who is naked, disrobing, or engaged in sexual activity despite substantial objective evidence to the contrary. If disclosing individuals also report dis- tress or psychosocial problems because of their voyeuristic sexual preferences, they could be diagnosed with voyeuristic disorder. On the other hand, if they declare no distress, demon- strated by lack of anxiety, obsessions, guilt, or shame, about these paraphilic impulses and are not impaired in other important areas of functioning because of this sexual interest, and their psychiatric or legal histories indicate that they do not act on it, they could be ascertained as having voyeuristic sexual interest but should not be diagnosed with voyeuristic disorder. Nondisclosing individuals include, for example, individuals known to have been spy- ing repeatedly on unsuspecting persons who are naked or engaging in sexual activity on separate occasions but who deny any urges or fantasies concerning such sexual behavior, and who may report that known episodes of watching unsuspecting naked or sexually ac- tive persons were all accidental and nonsexual. Others may disclose past episodes of ob— sustained sexual interest in this behavior. Since these individuals deny having fantasies or impulses about watching others nude or involved in sexual activity, it follows that they would also reject feeling subjectively distressed or socially impaired by such impulses. De- spite their nondisclosing stance, such individuals may be diagnosed with voyeuristic dis— order. Recurrent voyeuristic behavior constitutes sufficient support for voyeurism (by behavior is causing harm to others (by fulfilling Criterion B). ”Recurrent” spying on unsuspecting persons who are naked or engaging in sexual ac- tivity (i.e., multiple victims, each on a separate occasion) may, as a general rule, be inter- preted as three or more victims on separate occasions. Fewer victims can be interpreted as satisfying this criterion if there were multiple occasions of watching the same victim or if there is corroborating evidence of a distinct or preferential interest in secret watching of naked or sexually active unsuspecting persons. Note that multiple victims, as suggested earlier, are a sufficient but not a necessary condition for diagnosis; the criteria may also be met if the individual acknowledges intense voyeuristic sexual interest. The Criterion A time frame, indicating that signs or symptoms of voyeurism must have persisted for at least 6 months, should also be understood as a general guideline, not a strict threshold, to ensure that the sexual interest in secretly watching unsuspecting naked or sexually active others is not merely transient. Adolescence and puberty generally increase sexual curiosity and activity. To alleviate the risk of pathologizing normative sexual interest and behavior during pubertal adoles- cence, the minimum age for the diagnosis of voyeuristic disorder is 18 years (Criterion C). Voyeuristic acts are the most common of potentially law-breaking sexual behaviors. The population prevalence of voyeuristic disorder is unknown. However, based on voyeuris- tic sexual acts in nonclinical samples, the highest possible lifetime prevalence for voyeuris— tic disorder is approximately 12% in males and 4% in females. Adult males with voyeuristic disorder often first become aware of their sexual interest in secretly watching unsuspecting persons during adolescence. However, the minimum age for a diagnosis of voyeuristic disorder is 18 years because there is substantial difficulty in differentiating it from age-appropriate puberty-related sexual curiosity and activity. The persistence of voyeurism over time is unclear. Voyeuristic disorder, however, per defini- tion requires one or more contributing factors that may change over time with or without treatment: subjective distress (e.g., guilt, shame, intense sexual frustration, loneliness), psychiatric morbidity, hypersexuality, and sexual impulsivity; psychosocial impairment; and / or the propensity to act out sexually by spying on unsuspecting naked or sexually ac- tive persons. Therefore, the course of voyeuristic disorder is likely to vary with age. Temperamental. Voyeurism is a necessary precondition for voyeuristic disorder; hence, risk factors for voyeurism should also increase the rate of voyeuristic disorder. Environmental. Childhood sexual abuse, substance misuse, and sexual preoccupation/ hypersexuality have been suggested as risk factors, although the causal relationship to voyeurism is uncertain and the specificity unclear. Voyeuristic disorder is very uncommon among females in clinical settings, while the male- to-female ratio for single sexually arousing voyeuristic acts might be 3:1. Conduct disorder and antisocial personality disorder. Conduct disorderinadolescents and antisocial behaviors, and the specific sexual interest in secretly watching unsuspect- ing others who are naked or engaging in sexual activity should be lacking. Substance use disorders. Substance use disorders might involve single voyeuristic ep- isodes by intoxicated individuals but should not involve the typical sexual interest in se- cretly watching unsuspecting persons being naked or engaging in sexual activity. Hence, recurrent voyeuristic sexual fantasies, urges, or behaviors that occur also when the indi— vidual is not intoxicated suggest that voyeuristic disorder might be present. Known comorbidities in voyeuristic disorder are largely based on research with males suspected of or convicted for acts involving the secret watching of unsuspecting nude or sexually active persons. Hence, these comorbidities might not apply to all individuals with voyeuristic disorder. Conditions that occur comorbidly with voyeuristic disorder include hypersexuality and other paraphilic disorders, particularly exhibitionistic disorder. De- pressive, bipolar, anxiety, and substance use disorders; attention-deficit/hyperactivity disorder; and conduct disorder and antisocial personality disorder are also frequent co- morbid conditions. Diagnostic Criteria 302.4 (F65.2)A. Over a period of at least 6 months, recurrent and intense sexual arousal from the ex- posure of one's genitals to an unsuspecting person, as manifested by fantasies, urges, or behaviors. B. The individual has acted on these sexual urges with a nonconsenting person, or the sexual urges or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Specify whether:Sexually aroused by exposing genitals to prepubertal childrenSexually aroused by exposing genitals to physically mature individualsSexually aroused by exposing genitals to prepubertal children and to physically Specify if:In a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to expose one’s genitals are restricted. In full remission: The individual has not acted on the urges with a nonconsenting per- son, and there has been no distress or impairment in social, occupational, or other ar- eas of functioning, for at least 5 years while in an uncontrolled environment. The subtypes for exhibitionistic disorder are based on the age or physical maturity of the non- consenting individuals to whom the individual prefers to expose his or her genitals. The non- consenting individuals could be prepubescent children, adults, or both. This specifier should help draw adequate attention to characteristics of victims of individuals with exhibitionistic disorder to prevent co-occuiring pedophilic disorder from being overlooked. However, indi- cations that the individual with exhibitionistic disorder is sexually attracted to exposing his or her genitals to children should not preclude a diagnosis of pedophilic disorder. The ”in full remission” specifier does not address the continued presence or absence of ex- hibitionism per se, which may still be present after behaviors and distress have remitted. The diagnostic criteria for exhibitionistic disorder can apply both to individuals who more or less freely disclose this paraphilia and to those who categorically deny any sexual attraction to exposing their genitals to unsuspecting persons despite substantial objective evidence to the contrary. If disclosing individuals also report psychosocial difficulties because of their sexual attractions or preferences for exposing, they may be diagnosed with exhibitionistic disorder. In contrast, if they declare no distress (exemplified by absence of anxiety, obsessions, and guilt or shame about these paraphilic impulses) and are not impaired by this sexual interest in other important areas of functioning, and their self—reported, psychiatric, or legal histories indicate that they do not act on them, they could be ascertained as having exhibitionistic sexual interest but not be diagnosed with exhibitionistic disorder. Examples of nondisclosing individuals include those who have exposed themselves repeatedly to unsuspecting persons on separate occasions but who deny any urges or fan- tasies about such sexual behavior and who report that known episodes of exposure were all accidental and nonsexual. Others may disclose past episodes of sexual behavior involv- ior. Since these individuals deny having urges or fantasies involving genital exposure, it such impulses. Such individuals may be diagnosed with exhibitionistic disorder despite their negative self—report. Recurrent exhibitionistic behavior constitutes sufficient support motivated behavior is causing harm to others (Criterion B). ”Recurrent” genital exposure to unsuspecting others (i.e., multiple victims, each on a separate occasion) may, as a general rule, be interpreted as three or more victims on sep- arate occasions. Fewer victims can be interpreted as satisfying this criterion if there were multiple occasions of exposure to the same victim, or if there is corroborating evidence of a strong or preferential interest in genital exposure to unsuspecting persons. Note that multiple victims, as suggested earlier, are a sufficient but not a necessary condition for di- agnosis, as criteria may be met by an individual’s acknowledging intense exhibitionistic sexual interest with distress and / or impairment. The Criterion A time frame, indicating that signs or symptoms of exhibitionism must have persisted for at least 6 months, should also be understood as a general guideline, not a strict threshold, to ensure that the sexual interest in exposing one’s genitals to unsuspect- ing others is not merely transient. This might be expressed in clear evidence of repeated behaviors or distress over a nontransient period shorter than 6 months. The prevalence of exhibitionistic disorder is unknown. However, based on exhibitionistic sexual acts in nonclinical or general populations, the highest possible prevalence for exhi- bitionistic disorder in the male population is 2%—4%. The prevalence of exhibitionistic dis- order in females is even more uncertain but is generally believed to be much lower than in males. Adult males with exhibitionistic disorder often report that they first became aware of sex— ual interest in exposing their genitals to unsuspecting persons during adolescence, at a somewhat later time than the typical development of normative sexual interest in women or men. Although there is no minimum age requirement for the diagnosis of exhibitionis— tic disorder, it may be difficult to differentiate exhibitionistic behaviors from age-appro- priate sexual curiosity in adolescents. Whereas exhibitionistic impulses appear to emerge in adolescence or early adulthood, very little is known about persistence over time. By def- inition, exhibitionistic disorder requires one or more contributing factors, which may change over time with or without treatment; subjective distress (e.g., guilt, shame, intense sexual frustration, loneliness), mental disorder comorbidity, hypersexuality, and sexual impulsivity; psychosocial impairment; and / or the propensity to act out sexually by expos- ing the genitals to unsuspecting persons. Therefore, the course of exhibitionistic disorder is likely to vary with age. As with other sexual preferences, advancing age may be associ- ated with decreasing exhibitionistic sexual preferences and behavior. Temperamental. Since exhibitionism is a necessary precondition for exhibitionistic dis- order, risk factors for exhibitionism should also increase the rate of exhibitionistic disor- der. Antisocial history, antisocial personality disorder, alcohol misuse, and pedophilic sexual preference might increase risk of sexual recidivism in exhibitionistic offenders. Hence, antisocial personality disorder, alcohol use disorder, and pedophilic interest may be considered risk factors for exhibitionistic disorder in males with exhibitionistic sexual preferences. Environmental. Childhood sexual and emotional abuse and sexual preoccupation/hyper— sexuality have been suggested as risk factors for exhibitionism, although the causal rela- tionship to exhibitionism is uncertain and the specificity unclear. Exhibitionistic disorder is highly unusual in females, whereas single sexually arousing ex- hibitionistic acts might occur up to half as often among women compared with men. Functionai Consequences of Exhibitionistic DisorderThe functional consequences of exhibitionistic disorder have not been addressed in re- tress over these preferences. Potential differential diagnoses for exhibitionistic disorder sometimes occur also as co- morbid disorders. Therefore, it is generally necessary to evaluate the evidence for exhibi- tionistic disorder and other possible conditions as separate questions. Conduct disorder and antisocial personality disorder. Conduct disorder in adolescents antisocial behaviors, and the specific sexual interest in exposing the genitals should be lacking. Substance use disorders. Alcohol and substance use disorders might involve single exhibitionistic episodes by intoxicated individuals but should not involve the typical sex- ual interest in exposing the genitals to unsuspecting persons. Hence, recurrent exhibition- istic sexual fantasies, urges, or behaviors that occur also when the individual is not intoxicated suggest that exhibitionistic disorder might be present. Known comorbidities in exhibitionistic disorder are largely based on research with indi- viduals (almost all males) convicted for criminal acts involving genital exposure to non- consenting individuals. Hence, these comorbidities might not apply to all individuals who qualify for a diagnosis of exhibitionistic disorder. Conditions that occur comorbidly with exhibitionistic disorder at high rates include depressive, bipolar, anxiety, and substance disorders; and antisocial personality disorder. Diagnostic Criteria 302.89 (F65.81)A. Over a period of at least 6 months, recurrent and intense sexual arousal from touching or rubbing against a nonconsenting person, as manifested by fantasies, urges, or be- haviors. B. The individual has acted on these sexual urges with a nonconsenting person, or the sexual urges or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Specify it:In a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to touch or rub against a noncon- senting person are restricted. In full remission: The individual has not acted on the urges with a nonconsenting per- son, and there has been no distress or impairment in social, occupational, or other ar- eas of functioning, for at least 5 years while in an uncontrolled environment. The ”in remission” specifier does not address the continued presence or absence of frot- teurism per se, which may still be present after behaviors and distress have remitted. The diagnostic criteria for frotteuristic disorder can apply both to individuals who relatively freely disclose this paraphilia and to those who firmly deny any sexual attraction from touch- ing or rubbing against a nonconsenting individual regardless of considerable objective evi- dence to the contrary. If disclosing individuals also report psychosocial impairment due to their sexual preferences for touching or rubbing against a nonconsenting individual, they could be diagnosed with frotteuristic disorder. In contrast, if they declare no distress (demon- strated by lack of anxiety, obsessions, guilt, or shame) about these paraphilic impulses and are not impaired in other important areas of functioning because of this sexual interest, and their psychiatric or legal histories indicate that they do not act on it, they could be ascertained as having frotteuristic sexual interest but should not be diagnosed with frotteuristic disorder. Nondisclosing individuals include, for instance, individuals known to have been contest any urges or fantasies concerning such sexual behavior. Such individuals may re- port that identified episodes of touching or rubbing against an unwilling individual were all unintentional and nonsexual. Others may disclose past episodes of touching or rubbing this. Since these individuals deny having fantasies or impulses about touching or rubbing, impulses. Despite their nondisclosing position, such individuals may be diagnosed with frotteuristic disorder. Recurrent frotteuristic behavior constitutes satisfactory support for cally motivated behavior is causing harm to others (by fulfilling Criterion B). ”Recurrent” touching or rubbing against a nonconsenting individual (i.e., multiple vic- tims, each on a separate occasion) may, as a general rule, be interpreted as three or more vic- tims on separate occasions. Fewer victims can be interpreted as satisfying this criterion if there were multiple occasions of touching or rubbing against the same unwilling individ- ual, or corroborating evidence of a strong or preferential interest in touching or rubbing against nonconsenting individuals. Note that multiple victims are a sufficient but not a nec- essary condition for diagnosis; criteria may also be met if the individual acknowledges in- tense frotteuristic sexual interest with clinically significant distress and/ or impairment. The Criterion A time frame, indicating that signs or symptoms of frotteurism must persist for at least 6 months, should also be interpreted as a general guideline, not a strict threshold, to ensure that the sexual interest in touching or rubbing against a nonconsenting individual is not transient. Hence, the duration part of Criterion A may also be met if there is clear evidence of recurrent behaviors or distress over a shorter but nontransient time period. Frotteuristic acts, including the uninvited sexual touching of or rubbing against another individual, may occur in up to 30% of adult males in the general population. Approximately 10%—14% of adult males seen in outpatient settings for paraphilic disorders and hypersex- uality have a presentation that meets diagnostic criteria for frotteuristic disorder. Hence, whereas the population prevalence of frotteuristic disorder is unknown, it is not likely that it exceeds the rate found in selected clinical settings. Adult males with frotteuristic disorder often report first becoming aware of their sexual in- adulthood. However, children and adolescents may also touch or rub against unwilling oth- ers in the absence of a diagnosis of frotteuristic disorder. Although there is no minimum age for the diagnosis, frotteuristic disorder can be difficult to differentiate from conduct-disor- dered behavior without sexual motivation in individuals at younger ages. The persistence of frotteurism over time is unclear. Frotteuristic disorder, however, by definition requires one or more contributing factors that may change over time with or without treatment: subjec- tive distress (e.g., guilt, shame, intense sexual frustration, loneliness); psychiatric morbidity; hypersexuality and sexual impulsivity; psychosocial impairment; and/ or the propensity to act out sexually by touching or rubbing against unconsenting persons. Therefore, the course of frotteuristic disorder is likely to vary with age. As with other sexual preferences, advanc- ing age may be associated with decreasing frotteuristic sexual preferences and behavior. Temperamental. Nonsexual antisocial behavior and sexual preoccupation/hypersexuality might be nonspecific risk factors, although the causal relationship to frotteurism is uncertain and the specificity unclear. However, frotteurism is a necessary precondition for frotteuristic disorder, so risk factors for frotteurism should also increase the rate of frotteuristic disorder. There appear to be substantially fewer females with frotteuristic sexual preferences than males. Conduct disorder and antisocial personality disorder. Conduct disorder in adolescents and antisocial behaviors, and the specific sexual interest in touching or rubbing against a nonconsenting individual should be lacking. Substance use disorders. Substance use disorders, particularly those involving stimu- lants such as cocaine and amphetamines, might involve single frotteuristic episodes by in— toxicated individuals but should not involve the typical sustained sexual interest in touching or rubbing against unsuspecting persons. Hence, recurrent frotteuristic sexual fantasies, urges, or behaviors that occur also when the individual is not intoxicated sug- gest that frotteuristic disorder might be present. Known comorbidities in frotteuristic disorder are largely based on research with males suspected of or convicted for criminal acts involving sexually motivated touching of or rubbing against a nonconsenting individual. Hence, these comorbidities might not apply to other individuals with a diagnosis of frotteuristic disorder based on subjective distress over their sexual interest. Conditions that occur comorbidly with frotteuristic disorder in- clude hypersexuality and other paraphilic disorders, particularly exhibitionistic disorder and voyeuristic disorder. Conduct disorder, antisocial personality disorder, depressive disorders, bipolar disorders, anxiety disorders, and substance use disorders also co-occur. Potential differential diagnoses for frotteuristic disorder sometimes occur also as comor- bid disorders. Therefore, it is generally necessary to evaluate the evidence for frotteuristic disorder and possible comorbid conditions as separate questions. Diagnostic Criteria 302.83 (F65.51)A. Over a period of at least 6 months, recurrent and intense sexual arousal from the act of being humiliated, beaten, bound, or otherwise made to suffer. as manifested by fan- tasies, urges, or behaviors. B. The fantasies, sexual urges, or behaviors cause clinically significant distress or impair- ment in social, occupational, or other important areas of functioning. Specify if:With asphyxiophilia: If the individual engages in the practice of achieving sexual arousal related to restriction of breathing. Specify if:In a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to engage in masochistic sexual behaviors are restricted. In full remission: There has been no distress or impairment in social, occupational, or other areas of functioning for at last 5 years while in an uncontrolled environment. The diagnostic criteria for sexual masochism disorder are intended to apply to individuals who freely admit to having such paraphilic interests. Such individuals openly acknowl- edge intense sexual arousal from the act of being humiliated, beaten, bound, or otherwise made to suffer, as manifested by fantasies, urges, or behaviors. If these individuals also re- port psychosocial difficulties because of their sexual attractions or preferences for being humiliated, beaten, bound, or otherwise made to suffer, they may be diagnosed with sex- ual masochism disorder. In contrast, if they declare no distress, exemplified by anxiety, ob- sessions, guilt, or shame, about these paraphilic impulses, and are not hampered by them in pursuing other personal goals, they could be ascertained as having masochistic sexual interest but should not be diagnosed with sexual masochism disorder. The Criterion A time frame, indicating that the signs or symptoms of sexual masoch- ism must have persisted for at least 6 months, should be understood as a general guideline, not a strict threshold, to ensure that the sexual interest in being humiliated, beaten, bound, or otherwise made to suffer is not merely transient. However, the disorder can be diag- nosed in the context of a clearly sustained but shorter time period. The extensive use of pornography involving the act of being humiliated, beaten, bound, or oth- erwise made to suffer is sometimes an associated feature of sexual masochism disorder. The population prevalence of sexual masochism disorder is unknown. In Australia, it has been estimated that 2.2% of males and 1.3% of females had been involved in bondage and discipline, sadomasochism, or dominance and submission in the past 12 months. Community individuals with paraphilias have reported a mean age at onset for masoch- ism of 19.3 years, although earlier ages, including puberty and childhood, have also been reported for the onset of masochistic fantasies. Very little is known about persistence over time. Sexual masochism disorder per definition requires one or more contributing factors, which may change over time with or without treatment. These include subjective distress (e.g., guilt, shame, intense sexual frustration, loneliness), psychiatric morbidity, hypersex- uality and sexual impulsivity, and psychosocial impairment. Therefore, the course of sex- ual masochism disorder is likely to vary with age. Advancing age is likely to have the same reducing effect on sexual preference involving sexual masochism as it has on other para- philic or normophilic sexual behavior. Functional Consequences of Sexual Masochism DisorderThe functional consequences of sexual masochism disorder are unknown. However, mas- ochists are at risk of accidental death while practicing asphyxiophilia or other autoerotic procedures. Many of the conditions that could be differential diagnoses for sexual masochism disorder (e.g., transvestic fetishism, sexual sadism disorder, hypersexuality, alcohol and substance use disorders) sometimes occur also as comorbid diagnoses. Therefore, it is necessary to carefully evaluate the evidence for sexual masochism disorder, keeping the possibility of other paraphilias or other mental disorders as part of the differential diagnosis. Sexual masochism in the absence of distress (i.e., no disorder) is also included in the differential, as individuals who conduct the behaviors may be satisfied with their masochistic orienta- tion. Known comorbidities with sexual masochism disorder are largely based on individuals in treatment. Disorders that occur comorbidly with sexual masochism disorder typically in- clude other paraphilic disorders, such as transvestic fetishism. Diagnostic Criteria 302.84 (F6552)A. Over a period of at least 6 months, recurrent and intense sexual arousal from the phys- ical or psychological suffering of another person, as manifested by fantasies, urges, or behaviors. B. The individual has acted on these sexual urges with a nonconsenting person, or the sexual urges or fantasies cause clinically significant distress or impairment in social, occupational. or other important areas of functioning. Specify it:In a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to engage in sadistic sexual behav- iors are restricted. In full remission: The individual has not acted on the urges with a nonconsenting per- son, and there has been no distress or impairment in social, occupational, or other ar- eas of functioning, for at least 5 years while in an uncontrolled environment. The diagnostic criteria for sexual sadism disorder are intended to apply both to individuals who freely admit to having such paraphilic interests and to those who deny any sexual interest in the physical or psychological suffering of another individual despite substantial objective evidence to the contrary. Individuals who openly acknowledge intense sexual interest in the physical or psychological suffering of others are referred to as ”admitting individuals.” If these individuals also report psychosocial difficulties because of their sexual attractions or prefer— ences for the physical or psychological suffering of another individual, they may be diagnosed with sexual sadism disorder. In contrast, if admitting individuals declare no distress, exempli- fied by anxiety, obsessions, guilt, or shame, about these paraphilic impulses, and are not ham- pered by them in pursuing other goals, and their self-reported, psychiatric, or legal histories indicate that they do not act on them, then they could be ascertained as having sadistic sexual interest but they would not meet criteria for sexual sadism disorder. Examples of individuals who deny any interest in the physical or psychological suffering of another individual include individuals known to have inflicted pain or suffering on mul— behavior and who may further claim that known episodes of sexual assault were either un- intentional or nonsexual. Others may admit past episodes of sexual behavior involving the infliction of pain or suffering on a nonconsenting individual but do not report any significant or sustained sexual interest in the physical or psychological suffering of another individual. Since these individuals deny having urges or fantasies involving sexual arousal to pain and suffering, it follows that they would also deny feeling subjectively distressed or socially im- paired by such impulses. Such individuals may be diagnosed with sexual sadism disorder despite their negative self—report. Their recurrent behavior constitutes clinical support for the presence of the paraphilia of sexual sadism (by satisfying Criterion A) and simultane— ously demonstrates that their paraphilically motivated behavior is causing clinically signif- icant distress, harm, or risk of harm to others (satisfying Criterion B). "Recurrent” sexual sadism involving nonconsenting others (i.e., multiple victims, each on a separate occasion) may, as general rule, be interpreted as three or more victims on separate occasions. Fewer victims can be interpreted as satisfying this criterion, if there are multiple instances of infliction of pain and suffering to the same victim, or if there is cor— roborating evidence of a strong or preferential interest in pain and suffering involving multiple victims. Note that multiple victims, as suggested earlier, are a sufficient but not a necessary condition for diagnosis, as the criteria may be met if the individual acknowl- edges intense sadistic sexual interest. The Criterion A time frame, indicating that the signs or symptoms of sexual sadism must have persisted for at least 6 months, should also be understood as a general guide- line, not a strict threshold, to ensure that the sexual interest in inflicting pain and suffering on nonconsenting victims is not merely transient. However, the diagnosis may be met if there is a clearly sustained but shorter period of sadistic behaviors. The extensive use of pornography involving the infliction of pain and suffering is some- times an associated feature of sexual sadism disorder. The population prevalence of sexual sadism disorder is unknown and is largely based on individuals in forensic settings. Depending on the criteria for sexual sadism, prevalence varies widely, from 2% to 30%. Among civilly committed sexual offenders in the United States, less than 10% have sexual sadism. Among individuals who have committed sexu- ally motivated homicides, rates of sexual sadism disorder range from 37% to 75%. Individuals with sexual sadism in forensic samples are almost exclusively male, but a rep- resentative sample of the population in Australia reported that 2.2% of men and 1.3% of women said they had been involved in bondage and discipline, "sadomasochism," or dom- inance and submission in the previous year. Information on the development and course of sexual sadism disorder is extremely limited. One study reported that females became aware of their sadomasochistic orientation as young adults, and another reported that the mean age at onset of sadism in a group of males was 19.4 years. Whereas sexual sadism per se is probably a lifelong characteristic, sexual sadism disorder may fluctuate according to the individual’s subjective distress or his or her propensity to harm nonconsenting others. Advancing age is likely to have the same reducing effect on this disorder as it has on other paraphilic or normophilic sexual behavior. Many of the conditions that could be differential diagnoses for sexual sadism disorder (e.g., antisocial personality disorder, sexual masochism disorder, hypersexuality, sub— stance use disorders) sometimes occur also as comorbid diagnoses. Therefore, it is neces- sary to carefully evaluate the evidence for sexual sadism disorder, keeping the possibility of other paraphilias or mental disorders as part of the differential diagnosis. The majority of individuals who are active in community networks that practice sadistic and masoch- istic behaviors do not express any dissatisfaction with their sexual interests, and their be- havior would not meet DSM-5 criteria for sexual sadism disorder. Sadistic interest, but not the disorder, may be considered in the differential diagnosis. Known comorbidities with sexual sadism disorder are largely based on individuals (al- Victims. Hence, these comorbidities might not apply to all individuals who never engaged in sadistic activity with a nonconsenting victim but who qualify for a diagnosis of sexual sadism disorder based on subjective distress over their sexual interest. Disorders that are commonly comorbid with sexual sadism disorder include other paraphilic disorders. Diagnostic Criteria 302.2 (F65.4)A. Over a period of at least 6 months, recurrent, intense sexually arousing fantasies, sex- ual urges, or behaviors involving sexual activity with a prepubescent child or children (generally age 13 years or younger). B. The individual has acted on these sexual urges, or the sexual urges or fantasies cause marked distress or interpersonal difficulty. C. The individual is at least age 16 years and at least 5 years older than the child or chil- dren in Criterion A. Note: Do not include an individual in late adolescence involved in an ongoing sexual relationship with a 12- or 13-year-old. Specify whether:Exclusive type (attracted only to children)Specify if:Sexually attracted to malesSexually attracted to femalesSexually attracted to bothSpecify if:Limited to incestThe diagnostic criteria for pedophilic disorder are intended to apply both to individuals who freely disclose this paraphilia and to individuals who deny any sexual attraction to prepuber- tal children (generally age 13 years or younger), despite substantial objective evidence to the contrary. Examples of disclosing this paraphilia include candidly acknowledging an intense sexual interest in children and indicating that sexual interest in children is greater than or equal to sexual interest in physically mature individuals. If individuals also complain that their sex- ual attractions or preferences for children are causing psychosocial difficulties, they may be di- agnosed with pedophilic disorder. However, if they report an absence of feelings of guilt, shame, or anxiety about these impulses and are not functionally limited by their paraphilic im- pulses (according to self-report, objective assessment, or both), and their self-reported and le- gally recorded histories indicate that they have never acted on their impulses, then these individuals have a pedophilic sexual orientation but not pedophilic disorder. Examples of individuals who deny attraction to children include individuals who are known to have sexually approached multiple children on separate occasions but who deny any urges or fantasies about sexual behavior involving children, and who may further claim that the known episodes of physical contact were all unintentional and nonsexual. Other indi- viduals may acknowledge past episodes of sexual behavior involving children but deny any significant or sustained sexual interest in children. Since these individuals may deny experi- ences impulses or fantasies involving children, they may also deny feeling subjectively dis— tressed. Such individuals may still be diagnosed with pedophilic disorder despite the absence of self-reported distress, provided that there is evidence of recurrent behaviors persisting for 6 months (Criterion A) and evidence that the individual has acted on sexual urges or experi- enced interpersonal difficulties as a consequence of the disorder (Criterion B). Presence of multiple Victims, as discussed above, is sufficient but not necessary for di- agnosis; that is, the individual can still meet Criterion A by merely acknowledging intense or preferential sexual interest in children. The Criterion A clause, indicating that the signs or symptoms of pedophilia have per- sisted for 6 months or longer, is intended to ensure that the sexual attraction to children is not merely transient. However, the diagnosis may be made if there is clinical evidence of sustained persistence of the sexual attraction to children even if the 6-month duration can- not be precisely determined. The extensive use of pornography depicting prepubescent children is a useful diagnostic indicator of pedophilic disorder. This is a specific instance of the general case that individ- uals are likely to choose the kind of pornography that corresponds to their sexual interests. The population prevalence of pedophilic disorder is unknown. The highest possible prev- alence for pedophilic disorder in the male population is approximately 3%—5%. The pop- ulation prevalence of pedophilic disorder in females is even more uncertain, but it is likely a small fraction of the prevalence in males. Adult males with pedophilic disorder may indicate that they become aware of strong or preferential sexual interest in children around the time of puberty—the same time frame in which males who later prefer physically mature partners became aware of their sexual interest in women or men. Attempting to diagnose pedophilic disorder at the age at which it first manifests is problematic because of the difficulty during adolescent development in differentiating it from age-appropriate sexual interest in peers or from sexual curiosity. Hence, Criterion C requires for diagnosis a minimum age of 16 years and at least 5 years older than the child or children in Criterion A. Pedophilia per se appears to be a lifelong condition. Pedophilic disorder, however, necessarily includes other elements that may change over time with or without treatment: subjective distress (e.g., guilt, shame, intense sexual frustration, or feelings of isolation) or psychosocial impairment, or the propensity to act out sexually with children, or both. Therefore, the course of pedophilic disorder may fluctuate, increase, or decrease with age. Adults with pedophilic disorder may report an awareness of sexual interest in children that preceded engaging in sexual behavior involving children or self-identification as a pedo- phile. Advanced age is as likely to similarly diminish the frequency of sexual behavior involv— ing children as it does other paraphilically motivated and normophilic sexual behavior. Temperamental. There appears to be an interaction between pedophilia and antisocial- ity, such that males with both traits are more likely to act out sexually with children. Thus, males with pedophilia. Environmental. Adult males with pedophilia often report that they were sexually abused as children. It is unclear, however, whether this correlation reflects a causal influence of childhood sexual abuse on adult pedophilia. Genetic and physiological. Since pedophilia is a necessary condition for pedophilic dis- order, any factor that increases the probability of pedophilia also increases the risk of pe- dophilic disorder. There is some evidence that neurodevelopmental perturbation in utero increases the probability of development of a pedophilic orientation. Psychophysiological laboratory measures of sexual interest, which are sometimes useful in di- agnosing pedophilic disorder in males, are not necessarily useful in diagnosing this disorder in females, even when an identical procedure (e.g., viewing time) or analogous procedures (e.g., penile plethysmography and vaginal photoplethysmography) are available. Psychophysiological measures of sexual interest may sometimes be useful when an indi- vidual’s history suggests the possible presence of pedophilic disorder but the individual denies strong or preferential attraction to children. The most thoroughly researched and longest used of such measures is penile plethysmography, although the sensitivity and spec- ificity of diagnosis may vary from one site to another. Viewing time, using photographs of nude or minimally clothed persons as visual stimuli, is also used to diagnose pedophilic disorder, especially in combination with self—report measures. Mental health professionals in the United States, however, should be aware that possession of such visual stimuli, even for diagnostic purposes, may violate American law regarding possession of child pornog- raphy and leave the mental health professional susceptible to criminal prosecution. Many of the conditions that could be differential diagnoses for pedophilic disorder also sometimes occur as comorbid diagnoses. It is therefore generally necessary to evaluate the evidence for pedophilic disorder and other possible conditions as separate questions. Antisocial personality disorder. This disorder increases the likelihood that a person who is primarily attracted to the mature physique will approach a child, on one or a few occa- sions, on the basis of relative availability. The individual often shows other signs of this personality disorder, such as recurrent law-breaking. Alcohol and substance use disorders. The disinhibiting effects of intoxication may also increase the likelihood that a person who is primarily attracted to the mature physique will sexually approach a child. Obsessive-compulsive disorder. There are occasional individuals who complain about ego-dystonic thoughts and worries about possible attraction to children. Clinical inter- viewing usually reveals an absence of sexual thoughts about children during high states of sexual arousal (e.g., approaching orgasm during masturbation) and sometimes additional ego-dystonic, intrusive sexual ideas (e.g., concerns about homosexuality). Psychiatric comorbidity of pedophilic disorder includes substance use disorders; depres- sive, bipolar, and anxiety disorders; antisocial personality disorder; and other paraphilic disorders. However, findings on comorbid disorders are largely among individuals con- izable to other individuals with pedophilic disorder (e.g., individuals who have never approached a child sexually but who qualify for the diagnosis of pedophilic disorder on the basis of subjective distress). Diagnostic Criteria 302.81 (F65.0)A. Over a period of at least 6 months, recurrent and intense sexual arousal from either the use of nonliving objects or a highly specific focus on nongenital body pad(s), as manifested by fantasies. urges, or behaviors. B. The fantasies, sexual urges, or behaviors cause clinically significant distress or impair- ment in social, occupational, or other important areas of functioning. C. The fetish objects are not limited to articles of clothing used in cross-dressing (as in transvestic disorder) or devices specifically designed for the purpose of tactile genital stimulation (e.g.. vibrator). Specify if: in a controlled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to engage in fetishistic behaviors are restricted. In full remIssIon: There has been no distress or impairment in social, occupational, or other areas of functioning for at least 5 years while in an uncontrolled environment. Although individuals with fetishistic disorder may report intense and recurrent sexual arousal to inanimate objects or a specific body part, it is not unusual for non—mutually ex- clusive combinations of fetishes to occur. Thus, an individual may have fetishistic disorder associated with an inanimate object (e.g., female undergarments) or an exclusive focus on an intensely eroticized body part (e.g., feet, hair), or their fetishistic interest may meet cri- teria for various combinations of these specifiers (e.g., socks, shoes and feet). The paraphilic focus of fetishistic disorder involves the persistent and repetitive use of or de as primary elements associated with sexual arousal (Criterion A). A diagnosis of fetishistic dis- (Criterion B). Common fetish objects include female undergarments, male or female footwear, rubber articles, leather clothing, or other wearing apparel. Highly eroticized body parts asso- ciated with fetishistic disorder include feet, toes, and hair. It is not uncommon for sexualized fetishes to include both inanimate objects and body parts (e.g., dirty socks and feet), and for this reason the definition of fetishistic disorder now re-incorporates partiulism (i.e., an exclusive focus on a body part) into its boundaries. Partialism, previously considered a paraphilia not otherwise specified disorder, had historically been subsumed in fetishism prior to DSM-Il]. Many individuals who self—identify as fetishist practitioners do not necessarily report clinical impairment in association with their fetish-associated behaviors. Such individuals could be considered as having a fetish but not fetishistic disorder. A diagnosis of fetishistic disorder requires concurrent fulfillment of both the behaviors in Criterion A and the clin- ically significant distress or impairment in ftmctioning noted in Criterion B. Fetishistic disorder can be a multisensory experience, including holding, tasting, rubbing, inserting, or smelling the fetish object while masturbating, or preferring that a sexual part- ner wear or utilize a fetish object during sexual encounters. Some individuals may acquire extensive collections of highly desired fetish objects. Usually paraphilias have an onset during puberty, but fetishes can develop prior to ado- lescence. Once established, fetishistic disorder tends to have a continuous course that fluc- tuates in intensity and frequency of urges or behavior. Knowledge of and appropriate consideration for normative aspects of sexual behavior are important factors to explore to establish a clinical diagnosis of fetishistic disorder and to distinguish a clinical diagnosis from a socially acceptable sexual behavior. Fetishistic disorder has not been systematically reported to occur in females. In clinical samples, fetishistic disorder is nearly exclusively reported in males. Functional Consequences of Fetishistic DisorderTypical impairments associated with fetishistic disorder include sexual dysfunction during romantic reciprocal relationships when the preferred fetish object or body part is unavailable during foreplay or coitus. Some individuals with fetishistic disorder may pre- fer solitary sexual activity associated with their fetishistic preference(s) even while in- volved in a meaningful reciprocal and affectionate relationship. Although fetishistic disorder is relatively uncommon among arrested sexual offenders with paraphilias, males with fetishistic disorder may steal and collect their particular fe- tishistic objects of desire. Such individuals have been arrested and charged for nonsexual antisocial behaviors (e.g., breaking and entering, theft, burglary) that are primarily moti- vated by the fetishistic disorder. Transvestic disorder. The nearest diagnostic neighbor of fetishistic disorder is transves- tic disorder. As noted in the diagnostic criteria, fetishistic disorder is not diagnosed when fetish objects are limited to articles of clothing exclusively worn during cross-dressing (as in transvestic disorder), or when the object is genitally stimulating because it has been de~ signed for that purpose (e.g., a vibrator). Sexual masochism disorder or other paraphilic disorders. Fetishes can co-occur with other paraphilic disorders, especially ”sadomasochism” and transvestic disorder. When an individual fantasizes about or engages in ”forced cross-dressing” and is primarily sex- ually aroused by the domination or humiliation associated with such fantasy or repetitive activity, the diagnosis of sexual masochism disorder should be made. Fetishistic behavior without fetishistic disorder. Use of a fetish object for sexual arousal quence would not meet criteria for fetishistic disorder, as the threshold required by Crite- rion B would not be met. For example, an individual whose sexual partner either shares or can successfully incorporate his interest in caressing, smelling, or licking feet or toes as an important element of foreplay would not be diagnosed with fetishistic disorder; nor would an individual who prefers, and is not distressed or impaired by, solitary sexual be- havior associated with wearing rubber garments or leather boots. Fetishistic disorder may co-occur with other paraphilic disorders as well as hypersexual- ity. Rarely, fetishistic disorder may be associated with neurological conditions. Diagnostic Criteria 302.3 (F65.1)A. Over a period of at least 6 months. recurrent and intense sexual arousal from cross- dressing, as manifested by fantasies, urges, or behaviors. B. The fantasies. sexual urges. or behaviors cause clinically significant distress or impair- ment in social. occupational, or other important areas of functioning. Specify if:Wlth fetishism: If sexually aroused by fabrics, materials, or garments. With autogynephllia: If sexually aroused by thoughts or images of self as female. Specify it:In a controiled environment: This specifier is primarily applicable to individuals living in institutional or other settings where opportunities to cross-dress are restricted. In full remisslon: There has been no distress or impairment in social, occupational, or other areas of functioning for at least 5 years while in an uncontrolled environment. The presence of fetishism decreases the likelihood of gender dysphoria in men with trans- vestic disorder. The presence of autogynephilia increases the likelihood of gender dyspho- ria in men with transvestic disorder. The diagnosis of transvestic disorder does not apply to all individuals who dress as the op- posite sex, even those who do so habitually. It applies to individuals whose cross-dressing or thoughts of cross-dressing are always or often accompanied by sexual excitement (Cri- terion A) and who are emotionally distressed by this pattern or feel it impairs social or in- terpersonal functioning (Criterion B). The cross-dressing may involve only one or two articles of clothing (e.g., for men, it may pertain only to women’s undergarments), or it may involve dressing completely in the inner and outer garments of the other sex and (in men) may include the use of women’s wigs and make-up. Transvestic disorder is nearly exclusively reported in males. Sexual arousal, in its most obvious form of penile erection, may co-occur with cross-dressing in various ways. In younger males, cross-dressing often leads to masturbation, following which any female clothing is removed. Older males often learn to avoid masturbating or doing anything to stimulate the penis so that the avoidance of ejaculation allows them to prolong their cross-dressing session. Males with female part- ners sometimes complete a cross-dressing session by having intercourse with their part- ners, and some have difficulty maintaining a sufficient erection for intercourse without cross-dressing (or private fantasies of cross-dressing). Clinical assessment of distress or impairment, like clinical assessment of transvestic sexual arousal, is usually dependent on the individual’s self—report. The pattern of behav- ior "purging and acquisition” often signifies the presence of distress in individuals with transvestic disorder. During this behavioral pattern, an individual (usually a man) who has spent a great deal of money on women’s clothes and other apparel (e.g., shoes, wigs) discards the items (i.e., purges them) in an effort to overcome urges to cross-dress, and then begins acquiring a woman’s wardrobe all over again. Transvestic disorder in men is often accompanied by autogynephilia (i.e., a male’s para- philic tendency to be sexually aroused by the thought or image of himself as a woman). Autogynephilic fantasies and behaviors may focus on the idea of exhibiting female phys- iological functions (e.g., lactation, menstruation), engaging in stereotypically feminine be- havior (e.g., knitting), or possessing female anatomy (e.g., breasts). The prevalence of transvestic disorder is unknown. Transvestic disorder is rare in males and extremely rare in females. Fewer than 3% of males report having ever been sexually aroused by dressing in women’s attire. The percentage of individuals who have cross- dressed with sexual arousal more than once or a few times in their lifetimes would be even lower. The majority of males with transvestic disorder identify as heterosexual, although some individuals have occasional sexual interaction with other males, especially when they are cross-dressed. In males, the first signs of transvestic disorder may begin in childhood, in the form of strong fascination with a particular item of women’s attire. Prior to puberty, cross-dress- ing produces generalized feelings of pleasurable excitement. With the arrival of puberty, dressing in women’s clothes begins to elicit penile erection and, in some cases, leads di- rectly to first ejaculation. In many cases, cross-dressing elicits less and less sexual ex- citement as the individual grows older; eventually it may produce no discernible penile response at all. The desire to cross-dress, at the same time, remains the same or grows even stronger. Individuals who report such a diminution of sexual response typically report that the sexual excitement of cross-dressing has been replaced by feelings of comfort or well-being. In some cases, the course of transvestic disorder is continuous, and in others it is epi- sodic. It is not rare for men with transvestic disorder to lose interest in cross-dressing when they first fall in love with a woman and begin a relationship, but such abatement usually proves temporary. When the desire to cross-dress returns, so does the associated distress. Some cases of transvestic disorder progress to gender dysphoria. The males in these cases, who may be indistinguishable from others with transvestic disorder in adolescence or early childhood, gradually develop desires to remain in the female role for longer pe- riods and to feminize their anatomy. The development of gender dysphoria is usually ac- companied by a (self-reported) reduction or elimination of sexual arousal in association with cross-dressing. The manifestation of transvestism in penile erection and stimulation, like the manifesta- tion of other paraphilic as well as normophilic sexual interests, is most intense in adolescence and early adulthood. The severity of transvestic disorder is highest in adulthood, when the transvestic drives are most likely to conflict with performance in heterosexual intercourse and desires to marry and start a family. Middle—age and older men with a history of trans- vestism are less likely to present with transvestic disorder than with gender dysphoria. Functional Consequences of Transvestic DisorderEngaging in transvestic behaviors can interfere with, or detract from, heterosexual rela- tionships. This can be a source of distress to men who wish to maintain conventional mar— riages or romantic partnerships with women. Fetishistic disorder. This disorder may resemble transvestic disorder, in particular, in men with fetishism who put on women’s undergarments while masturbating with them. Distinguishing transvestic disorder depends on the individual’s specific thoughts during such activity (e.g., are there any ideas of being a woman, being like a woman, or being dressed as a woman?) and on the presence of other fetishes (e.g., soft, silky fabrics, whether these are used for garments or for something else). Gender dysphoria. Individuals with transvestic disorder do not report an incongruence be- tween their experienced gender and assigned gender nor a desire to be of the other gender; and they typically do not have a history of childhood cross-gender behaviors, which would be present in individuals with gender dysphoria. Individuals with a presentation that meets full criteria for transvestic disorder as well as gender dysphoria should be given both diagnoses. Transvestism (and thus transvestic disorder) is often found in association with other para- philias. The most frequently co-occurring paraphilias are fetishism and masochism. One particularly dangerous form of masochism, au toerotic asphyxia, is associated with transves- tism in a substantial proportion of fatal cases. 302.89 (F65.89)This category applies to presentations in which symptoms characteristic of a paraphilic disor- der that cause clinically significant distress or impairment in social, occupational, or other im- portant areas of functioning predominate but do not meet the full criteria for any of the disorders in the paraphilic disorders diagnostic class. The other specified paraphilic disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific paraphilic disorder. This is done by re- cording “other specified paraphilic disorder’ followed by the specific reason (e.g., “zoophilia”). Examples of presentations that can be specified using the "other specified" designation include, but are not limited to, recurrent and intense sexual arousal involving telephone scatologia (obscene phone calls), necrophilia (corpses), zoophilia (animals), coprophilia (feces), klismaphilia (enemas), or urophilia (urine) that has been present for at least 6 months and causes marked distress or impairment in social, occupational, or other important ar- eas of functioning. Other specified paraphilic disorder can be specified as in remission and/or as occurring in a controlled environment. 302.9 (F65.9)This category applies to presentations in which symptoms characteristic of a paraphilic disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the paraphilic disorders diagnostic class. The unspecified paraphilic dis- order category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific paraphilic disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis. FOUF disorders are included in this chapter: other specified mental disorder due to another medical condition; unspecified mental disorder due to another medical condition; other specified mental disorder; and unspecified mental disorder. This residual category applies to presentations in which symptoms characteristic of a mental disorder that cause clinically significant distress or impairment in social, occupational, or other important ar- eas of functioning predominate but do not meet the full criteria for any other mental dis- order in DSM—5. For other specified and unspecified mental disorders due to another medical condition, it must be established that the disturbance is caused by the physiolog- ical effects of another medical condition. If other specified and unspecified mental disor- ders are due to another medical condition, it is necessary to code and list the medical condition first (e.g., 042 [820] HIV disease), followed by the other specified or unspecified mental disorder (use appropriate code). Due to Another Medical Condition 294.8 (F06.8)This category applies to presentations in which symptoms characteristic of a mental dis- order due to another medical condition that cause clinically significant distress or impair— ment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any specific mental disorder attributable to another medical condition. The other specified mental disorder due to another medical condition category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific mental disorder attributable to another medical condition. This is done by recording the name of the disorder, with the specific etiological medical condition inserted in place of “another medical condition," fol- lowed by the specific symptomatic manifestation that does not meet the criteria for any specific mental disorder due to another medical condition. Furthermore, the diagnostic code for the specific medical condition must be listed immediately before the code for the other specified mental disorder due to another medical condition. For example, dissocia- tive symptoms due to complex partial seizures would be coded and recorded as 345.40 (640.209), complex partial seizures 294.8 (F06.8) other specified mental disorder due to complex partial seizures, dissociative symptoms. An example of a presentation that can be specified using the “other specified" desig- nation is the following: Dissociative symptoms: This includes symptoms occurring, for example, in the con- text of complex partial seizures. Due to Another Medical Condition 294.9 (F09)This category applies to presentations in which symptoms characteristic of a mental dis- order due to another medical condition that cause clinically significant distress or impair- ment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any specific mental disorder due to another medical condition. The unspecified mental disorder due to another medical condition category is used in sit- uations in which the clinician chooses not to specify the reason that the criteria are not met for a specific mental disorder due to another medical condition, and includes presentations for which there is insufficient information to make a more specific diagnosis (e.g., in emer- gency room settings). This is done by recording the name of the disorder, with the specific etiological medical condition inserted in place of “another medical condition." Furthermore, the diagnostic code for the specific medical condition must be listed immediately before the code for the unspecified mental disorder due to another medical condition. For exam- ple, dissociative symptoms due to complex partial seizures would be coded and recorded as 345.40 (640.209) complex partial seizures, 294.9 (F069) unspecified mental disorder due to complex partial seizures. 300.9 (F99)This category applies to presentations in which symptoms characteristic of a mental dis- order that cause clinically significant distress or impairment in social, occupational. or oth- er important areas of functioning predominate but do not meet the full criteria for any specific mental disorder. The other specified mental disorder category is used in situations in which the clinician chooses to communicate the specific reason that the presentation does not meet the criteria for any specific mental disorder. This is done by recording "other specified mental disorder” followed by the specific reason. 300.9 (F99)This category applies to presentations in which symptoms characteristic of a mental dis- order that cause clinically significant distress or impairment in social, occupational, or oth- er important areas of functioning predominate but do not meet the full criteria for any mental disorder. The unspecified mental disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a specific mental disorder, and includes presentations for which there is insufficient information to make a more specific diagnosis (e.g., in emergency room settings). Disorders and ,Other‘ AdversMedication—induced movement disorders are included in Section II because of their frequent importance in 1) the management by medication of mental disorders or oth- er medical conditions and 2) the differential diagnosis of mental disorders (e.g., anxiety malignant syndrome). Although these movement disorders are labeled “medication in- duced,” it is often difficult to establish the causal relationship between medication expo- sure and the development of the movement disorder, especially because some of these movement disorders also occur in the absence of medication exposure. The conditions and problems listed in this chapter are not mental disorders. The term neuroleptic is becoming outdated because it highlights the propensity of an- tipsychotic medications to cause abnormal movements, and it is being replaced with the term antipsychotic in many contexts. Nevertheless, the term neuroleptic remains appropri- ate in this context. Although newer antipsychotic medications may be less likely to cause some medication-induced movement disorders, those disorders still occur. Neuroleptic medications include so-called conventional, ”typical,” or first-generation antipsychotic agents (e.g., chlorpromazine, haloperidol, fluphenazine); ”atypical” or second-generation antipsychotic agents (e.g., clozapine, risperidone, olanzapine, quetiapine); certain dopa- mine receptor—blocking drugs used in the treatment of symptoms such as nausea and gas- troparesis (e.g., prochlorperazine, promethazine, trimethobenzamide, thiethylperazine, metoclopramide); and amoxapine, which is marketed as an antidepressant. 332.1 (G21.11) Neuroleptic-Induced Parkinsonism 332.1 (621.19) Other Medication-Induced ParkinsonismParkinsonian tremor, muscular rigidity, akinesia (i.e., loss of movement or difficulty ini- tiating movement), or bradykinesia (i.e., slowing movement) developing within a few weeks of starting or raising the dosage of a medication (e.g., a neuroleptic) or after reduc- ing the dosage of a medication used to treat extrapyramidal symptoms. 333.92 (G21.0) Neuroleptic Malignant SyndromeAlthough neuroleptic malignant syndrome is easily recognized in its classic full-blown form, it is often heterogeneous in onset, presentation, progression, and outcome. The clin- ical features described below are those considered most important in making the diagno- sis of neuroleptic malignant syndrome based on consensus recommendations. Patients have generally been exposed to a dopamine antagonist within 72 hours prior to symptom development. Hyperthermia (>100.4°F or >38.0°C on at least two occasions, measured orally), associated with profuse diaphoresis, is a distinguishing feature of neu- roleptic malignant syndrome, setting it apart from other neurological side effects of anti- psychotic medications. Extreme elevations in temperature, reflecting a breakdown in central thermoregulation, are more likely to support the diagnosis of neuroleptic malig- nant syndrome. Generalized rigidity, described as ”lead pipe” in its most severe form and usually unresponsive to antiparkinsonian agents, is a cardinal feature of the disorder and may be associated with other neurological symptoms (e.g., tremor, sialorrhea, akinesia, dystonia, trismus, myoclonus, dysarthria, dysphagia, rhabdomyolysis). Creatine kinase elevation of at least four times the upper limit of normal is commonly seen. Changes in mental status, characterized by delirium or altered consciousness ranging from stupor to coma, are often an early sign. Affected individuals may appear alert but dazed and unre- sponsive, consistent with catatonic stupor. Autonomic activation and instability—mani- fested by tachycardia (rate>25% above baseline), diaphoresis, blood pressure elevation 225 mmHg systolic change within 24 hours), urinary incontinence, and pallor—may be seen at any time but provide an early clue to the diagnosis. Tachypnea (rate >50°/o above baseline) is common, and respiratory distress—resulting from metabolic acidosis, hyper- metabolism, chest wall restriction, aspiration pneumonia, or pulmonary emboli—can oc- cur and lead to sudden respiratory arrest. A workup, including laboratory investigation, to exclude other infectious, toxic, met- abolic, and neuropsychiatric etiologies or complications is essential (see the section ”Dif- ferential Diagnosis” later in this discussion). Although several laboratory abnormalities are associated with neuroleptic malignant syndrome, no single abnormality is specific to the diagnosis. Individuals with neuroleptic malignant syndrome may have leukocytosis, metabolic acidosis, hypoxia, decreased serum iron concentrations, and elevations in se- rum muscle enzymes and catecholamines. Findings from cerebrospinal fluid analysis and neuroimaging studies are generally normal, whereas electroencephalography shows gen- eralized slowing. Autopsy findings in fatal cases have been nonspecific and variable, de- pending on complications. drome of 0.01%—0.02% among individuals treated with antipsychotics. The temporal pro- gression of signs and symptoms provides important clues to the diagnosis and prognosis of neuroleptic malignant syndrome. Alteration in mental status and other neurological signs typically precede systemic signs. The onset of symptoms varies from hours to days after drug initiation. Some cases develop within 24 hours after drug initiation, most within the first week, and virtually all cases within 30 days. Once the syndrome is diagnosed and oral antipsychotic drugs are discontinued, neuroleptic malignant syndrome is self—limited in most cases. The mean recovery time after drug discontinuation is 7—10 days, with most individuals recovering within 1 week and nearly all within 30 days. The duration may be prolonged when long-acting antipsychotics are implicated. There have been reports of in- dividuals in whom residual neurological signs persisted for weeks after the acute hyper- metabolic symptoms resolved. Total resolution of symptoms can be obtained in most cases of neuroleptic malignant syndrome; however, fatality rates of 10%—20% have been reported when the disorder is not recognized. Although many individuals do not experi- ence a recurrence of neuroleptic malignant syndrome when rechallenged with antipsy- chotic medication, some do, especially when antipsychotics are reinstituted soon after an episode. Neuroleptic malignant syndrome is a potential risk in any individual after antipsychotic drug administration. It is not specific to any neuropsychiatric diagnosis and may occur in individuals without a diagnosable mental disorder who receive dopamine antagonists. Clinical, systemic, and metabolic factors associated with a heightened risk of neuroleptic malignant syndrome include agitation, exhaustion, dehydration, and iron deficiency. A prior episode associated with antipsychotics has been described in 15%—20% of index cases, suggesting underlying vulnerability in some patients; however, genetic findings based on neurotransmitter receptor polymorphisms have not been replicated consistently. Nearly all dopamine antagonists have been associated with neuroleptic malignant syndrome, although high-potency antipsychotics pose a greater risk compared with low- potency agents and newer atypical antipsychotics. Partial or milder forms may be associ- ated with newer antipsychotics, but neuroleptic malignant syndrome varies in severity even with older drugs. Dopamine antagonists used in medical settings (e.g., metoclopra- mide, prochlorperazine) have also been implicated. Parenteral administration routes, rapid titration rates, and higher total drug dosages have been associated with increased risk; however, neuroleptic malignant syndrome usually occurs within the therapeutic dos- age range of antipsychotics. or medical conditions, including central nervous system infections, inflammatory or au- toimmune conditions, status epilepticus, subcortical structural lesions, and systemic con- ditions (e.g., pheochromocytoma, thyrotoxicosis, tetanus, heat stroke). resulting from the use of other substances or medications, such as serotonin syndrome; parkinsonian hyperthermia syndrome following abrupt discontinuation of dopamine ag- thesia; hyperthermia associated with abuse of stimulants and hallucinogens; and atropine poisoning from anticholinergics. In rare instances, individuals with schizophrenia or a mood disorder may present with malignant catatonia, which may be indistinguishable from neuroleptic malignant syn- drome. Some investigators consider neuroleptic malignant syndrome to be a drug- induced form of malignant catatonia. 333.72 (624.02) Medication-Induced Acute DystoniaAbnormal and prolonged contraction of the muscles of the eyes (oculogyric crisis), head, neck (torticollis or retrocollis), limbs, or trunk developing within a few days of starting or raising the dosage of a medication (such as a neuroleptic) or after reducing the dosage of a medication used to treat extrapyramidal symptoms. 333.99 (G25.71) Medication-Induced Acute AkathisiaSubjective complaints of restlessness, often accompanied by observed excessive move- ments (e.g., fidgety movements of the legs, rocking from foot to foot, pacing, inability to sit or stand still), developing within a few weeks of starting or raising the dosage of a medi- cation (such as a neuroleptic) or after reducing the dosage of a medication used to treat ex- trapyramidal symptoms. 333.85 (624.01) Tardive Dyskinesia the tongue, lower face and jaw, and extremities (but sometimes involving the pharyngeal, diaphragmatic, or trunk muscles) developing in association with the use of a neuroleptic medication for at least a few months. Symptoms may develop after a shorter period of medication use in older persons. In some patients, movements of this type may appear after discontinuation, or after change or reduction in dosage, of neuroleptic medications, in which case the condition is called neuroleptic withdrawal—emergent dyskinesia. Because withdrawal-emergent dyskinesia is usually time-limited, lasting less than 4—8 weeks, dyskinesia that persists beyond this win- dow is considered to be tardive dyskinesia. 333.72 (624.09) Tardive Dystonia 333.99 (G25.71) Tardive AkathisiaTardive syndrome involving other types of movement problems, such as dystonia or akathisia, which are distinguished by their late emergence in the course of treatment and their potential persistence for months to years, even in the face of neuroleptic discontinu- ation or dosage reduction. 333.1 (625.1) Medication-Induced Postural TremorFine tremor (usually in the range of 8—12 Hz) occurring during attempts to maintain a pos- ture and developing in association with the use of medication (e.g., lithium, antidepres- sants, valproate). This tremor is very similar to the tremor seen with anxiety, caffeine, and other stimulants. 333.99 (625.79) Other Medication-Induced Movement DisorderThis category is for medication-induced movement disorders not captured by any of the specific disorders listed above. Examples include 1) presentations resembling neuroleptic malignant syndrome that are associated with medications other than neuroleptics and 2) other medication-induced tardive conditions. 995.29 (T43.205A) Initial encounter 995.29 (T 43.205D) Subsequent encounter 995.29 (T 43.2053) Sequelae Antidepressant discontinuation syndrome is a set of symptoms that can occur after an abrupt cessation (or marked reduction in dose) of an antidepressant medication that was taken continuously for at least 1 month. Symptoms generally begin within 2—4 days and typically include specific sensory, somatic, and cognitive-emotional manifestations. Fre- quently reported sensory and somatic symptoms include flashes of lights, ”electric shock” sensations, nausea, and hyperresponsivity to noises or lights. Nonspecific anxiety and feelings of dread may also be reported. Symptoms are alleviated by restarting the same medication or starting a different medication that has a similar mechanism of action— for example, discontinuation symptoms after withdrawal from a serotonin-norepineph- rine reuptake inhibitor may be alleviated by starting a tricyclic antidepressant. To qualify as antidepressant discontinuation syndrome, the symptoms should not have been present before the antidepressant dosage was reduced and are not better explained by another mental disorder (e.g., manic or hypomanic episode, substance intoxication, substance withdrawal, somatic symptom disorder). Discontinuation symptoms may occur following treatment with tricyclic antidepressants (e.g., imipramine, amitriptyline, desipramine), serotonin reuptake inhibitors (e.g., fluox- etine, paroxetine, sertraline), and monoamine oxidase inhibitors (e.g., phenelzine, selegi- line, pargyline). The incidence of this syndrome depends on the dosage and half-life of the medication being taken, as well as the rate at which the medication is tapered. Short-acting medications that are stopped abruptly rather than tapered gradually may pose the great- est risk. The short-acting selective serotonin reuptake inhibitor (SSRI) paroxetine is the agent most commonly associated with discontinuation symptoms, but such symptoms oc- cur for all types of antidepressants. Unlike withdrawal syndromes associated with opioids, alcohol, and other substances of abuse, antidepressant discontinuation syndrome has no pathognomonic symptoms. In- stead, the symptoms tend to be vague and variable and typically begin 2—4 days after the last dose of the antidepressant. For SSRIs (e.g., paroxetine), symptoms such as dizziness, ringing in the ears, "electric shocks in the head," an inability to sleep, and acute anxiety are described. The antidepressant use prior to discontinuation must not have incurred hypo- mania or euphoria (i.e., there should be confidence that the discontinuation syndrome is not the result of fluctuations in mood stability associated with the previous treatment). The antidepressant discontinuation syndrome is based solely on pharmacological factors and is not related to the reinforcing effects of an antidepressant. Also, in the case of stim- ulant augmentation of an antidepressant, abrupt cessation may result in stimulant with- drawal symptoms (see ”Stimulant Withdrawal" in the chapter ”Substance-Related and Addictive Disorders”) rather than the antidepressant discontinuation syndrome described here. The prevalence of antidepressant discontinuation syndrome is unknown but is thought to vary according to the dosage prior to discontinuation, the half-life and receptor-binding affinity of the medication, and possibly the individual’s genetically influenced rate of me- tabolism for this medication. Because longitudinal studies are lacking, little is known about the clinical course of anti- depressant discontinuation syndrome. Symptoms appear to abate over time with very gradual dosage reductions. After an episode, some individuals may prefer to resume med- ication indefinitely if tolerated. The differential diagnosis of antidepressant discontinuation syndrome includes anxiety and depressive disorders, substance use disorders, and tolerance to medications. Anxiety and depressive disorders. Discontinuation symptoms often resemble symptoms of a persistent anxiety disorder or a return of somatic symptoms of depression for which the medication was initially given. Substance use disorders. Antidepressant discontinuation syndrome differs from sub- fects. The medication dosage has usually not been increased without the clinician’s permission, and the individual generally does not engage in drug-seeking behavior to ob- tain additional medication. Criteria for a substance use disorder are not met. Tolerance to medications. Tolerance and discontinuation symptoms can occur as a normal physiological response to stopping medication after a substantial duration of exposure. Most cases of medication tolerance can be managed through carefully con- trolled tapering. Typically, the individual was initially started on the medication for a major depressive dis- order; the original symptoms may return during the discontinuation syndrome. Other Adverse Effect of Medication 995.20 (T 50.905A) Initial encounter 995.20 (T 50.905D) Subsequent encounter 995.20 (T 50.9058) Sequelae This category is available for optional use by clinicians to code side effects of medication (other than movement symptoms) when these adverse effects become a main focus of clin- ical attention. Examples include severe hypotension, cardiac arrhythmias, and priapism. a Focus of Cllnical AttentionThis d iscussion covers other conditions and problems that may be a focus of clini- cal attention or that may otherwise affect the diagnosis, course, prognosis, or treatment of a patient’s mental disorder. These conditions are presented with their corresponding codes from ICD-9-CM (usually V codes) and ICD-10-CM (usually Z codes). A condition or problem in this chapter may be coded if it is a reason for the current visit or helps to explain the need for a test, procedure, or treatment. Conditions and problems in this chap- ter may also be included in the medical record as useful information on circumstances that may affect the patient’s care, regardless of their relevance to the current visit. The conditions and problems listed in this chapter are not mental disorders. Their in- clusion in DSM-5 is meant to draw attention to the scope of additional issues that may be encountered in routine clinical practice and to provide a systematic listing that may be useful to clinicians in documenting these issues. Key relationships, especially intimate adult partner relationships and parent/caregiver- child relationships, have a significant impact on the health of the individuals in these re- lationships. These relationships can be health promoting and protective, neutral, or detri- mental to health outcomes. In the extreme, these close relationships can be associated with maltreatment or neglect, which has significant medical and psychological consequences for the affected individual. A relational problem may come to clinical attention either as the reason that the individual seeks health care or as a problem that affects the course, prognosis, or treatment of the individual’s mental or other medical disorder. Problems Related to Family UpbringingV61.20 (Z62.820) Parent-Child Relational ProblemFor this category, the term parent is used to refer to one of the child’s primary caregivers, who may be a biological, adoptive, or foster parent or may be another relative (such as a grandparent) who fulfills a parental role for the child. This category should be used when the main focus of clinical attention is to address the quality of the parent-child relationship or when the quality of the parent—child relationship is affecting the course, prognosis, or treatment of a mental or other medical disorder. Typically, the parent-child relational problem is associated with impaired functioning in behavioral, cognitive, 0r affective do- mains. Examples of behavioral problems include inadequate parental control, supervision, and involvement with the child; parental overprotection; excessive parental pressure; ar- guments that escalate to threats of physical violence; and avoidance without resolution of problems. Cognitive problems may include negative attributions of the other’s intentions, hostility toward or scapegoating of the other, and unwarranted feelings of estrangement. Affective problems may include feelings of sadness, apathy, or anger about the other in- dividual in the relationship. Clinicians should take into account the developmental needs of the child and the cultural context. 716 Other Conditions That May Be a Focus of Clinical Attention V61.8 (262.891) Sibling Relational ProblemThis category should be used when the focus of clinical attention is a pattern of interaction among siblings that is associated with significant impairment in individual or family function- ing or with development of symptoms in one or more of the siblings, or when a sibling relational problem is affecting the course, prognosis, or treatment of a sibling’s mental or other medical disorder. This category can be used for either children or adults if the focus is on the sibling re- lationship. Siblings in this context include full, half-, step-, foster, and adopted siblings. V61.8 (262.29) Upbringing Away From ParentsThis category should be used when the main focus of clinical attention pertains to issues regarding a child being raised away from the parents or when this separate upbringing af- fects the course, prognosis, or treatment of a mental or other medical disorder. The child could be one who is under state custody and placed in kin care or foster care. The child could also be one who is living in a nonparental relative’s home, or with friends, but whose out—of—home placement is not mandated or sanctioned by the courts. Problems related to a child living in a group home or orphanage are also included. This category excludes issues related to V60.6 (Z593) children in boarding schools. V61.29 (262.898) Child Affected by Parental Relationship DistressThis category should be used when the focus of clinical attention is the negative effects of parental relationship discord (e.g., high levels of conflict, distress, or disparagement) on a child in the family, including effects on the child’s mental or other medical disorders. Other Problems Related to Primary Support GroupV61.10 (263.0) Relationship Distress With Spouse or Intimate PartnerThis category should be used when the major focus of the clinical contact is to address the quality of the intimate (spouse or partner) relationship or when the quality of that rela- tionship is affecting the course, prognosis, or treatment of a mental or other medical dis- order. Partners can be of the same or different genders. Typically, the relationship distress is associated with impaired functioning in behavioral, cognitive, or affective domains. Ex- amples of behavioral problems include conflict resolution difficulty, withdrawal, and overinvolvement. Cognitive problems can manifest as chronic negative attributions of the other’s intentions or dismissals of the partner’s positive behaviors. Affective problems would include chronic sadness, apathy, and / or anger about the other partner. Note: This category excludes clinical encounters for V61.1x (Z69.1x) mental health ser- vices for spousal or partner abuse problems and V65.49 (270.9) sex counseling. V61.03 (263.5) Disruption of Family by Separation or DivorceThis category should be used when partners in an intimate adult couple are living apart due to relationship problems or are in the process of divorce. V61.8 (263.8) High Expressed Emotion Level Within FamilyExpressed emotion is a construct used as a qualitative measure of the ”amount" of emo- tion—in particular, hostility, emotional overinvolvement, and criticism directed toward a family member who is an identified patient—displayed in the family environment. This category should be used when a family’s high level of expressed emotion is the focus of clinical attention or is affecting the course, prognosis, or treatment of a family member’s mental or other medical disorder. V62.82 (263.4) Uncomplicated BereavementThis category can be used when the focus of clinical attention is a normal reaction to the death of a loved one. As part of their reaction to such a loss, some grieving individuals present with symptoms characteristic of a major depressive episodchfor example, feel- Other Conditions That May Be a Focus of Clinical Attention 717 ings of sadness and associated symptoms such as insonmia, poor appetite, and weight loss. The bereaxed individual typically regards the depressed mood as ”normal,” al- though the individual may seek professional help for relief of associated symptoms such as insomnia or anorexia. The duration and expression of "normal” bereavement vary con- siderably among different cultural groups. Further guidance in distinguishing grief from a major depressive episode is provided in the criteria for major depressive episode. Maltreatment by a family member (e.g., caregiver, intimate adult partner) or by a nonrel- ative can be the area of current clinical focus, or such maltreatment can be an important factor in the assessment and treatment of patients with mental or other medical disorders. Because of the legal implications of abuse and neglect, care should be used in assessing these conditions and assigning these codes. Having a past history of abuse or neglect can influence diagnosis and treatment response in a number of mental disorders, and may also be noted along with the diagnosis. For the following categories, in addition to listings of the confirmed or suspected event of abuse or neglect, other codes are provided for use if the current clirtical encounter is to provide mental health services to either the victim or the perpetrator of the abuse or ne- glect. A separate code is also provided for designating a past history of abuse or neglect. For T codes only, the 7th character should be coded as follows: A (initial encounter)—Use while the patient is receiving active treatment for the condition (e.g., surgical treatment, emergency department encounter, eval- D (subsequent encounter)—Use for encounters after the patient has received active treatment for the condition and when he or she is receiving routine care for the condition during the healing or recovery phase (e.g., cast change or re- moval, removal of external or internal fixation device, medication adjustment, other aftercare and follow-up Visits). Child physical abuse is nonaccidental physical injury to a child—ranging from minor bruises to severe fractures or death—occurring as a result of punching, beating, kicking, biting, shaking, throwing, stabbing, choking, hitting (with a hand, stick, strap, or other object), burning, or any other method that is inflicted by a parent, caregiver, or other individual who has responsibility for the child. Such injury is considered abuse regardless of whether the caregiver intended to hurt the child. Physical discipline, such as spanking or paddling, is not considered abuse as long as it is reasonable and causes no bodily injury to the child. Child Physical Abuse, Confirmed 995.54 (T74.12XA) Initial encounter 995.54 (T74.12XD) Subsequent encounter Child Physical Abuse, Suspected 995.54 (T76.12XA) Initial encounter 995.54 (T76.12XD) Subsequent encounter 718 Other Conditions That May Be a Focus of Clinical Attention Other Circumstances Related to Child Physical AbuseV61 .21 (269.010) Encounter for mental health services for victim of child abuse by parent V61.21 (269.020) Encounter for mental health services for victim of nonparental child V15.41 (262.810) Personal history (past history) of physical abuse in childhood V61 .22 (269.011) Encounter for mental health services for perpetrator of parental child V62.83 (269.021) Encounter for mental health services for perpetrator of nonparental Child sexual abuse encompasses any sexual act involving a child that is intended to pro- vide sexual gratification to a parent, caregiver, or other individual who has responsibility for the child. Sexual abuse includes activities such as fondling a child’s genitals, penetra- tion, incest, rape, sodomy, and indecent exposure. Sexual abuse also includes noncontact exploitation of a child by a parent or caregiver—for example, forcing, tricking, enticing, threatening, or pressuring a child to participate in acts for the sexual gratification of others, without direct physical contact between child and abuser. Child Sexual Abuse, Confirmed 995.53 (T 74.22XA) Initial encounter 995.53 (T 74.22XD) Subsequent encounter Child Sexual Abuse, Suspected 995.53 (T76.22XA) Initial encounter 995.53 (T76.22XD) Subsequent encounter Other Circumstances Related to Child Sexual AbuseV61.21 (269.010) Encounter for mental health services for victim of child sexual abuse V61.21 (269.020) Encounter for mental health services for victim of nonparental child V15.41 (262.810) Personal history (past history) of sexual abuse in childhood V61.22 (269.011) Encounter for mental health services for perpetrator of parental child V62.83 (269.021) Encounter for mental health services for perpetrator of nonparental Child neglect is defined as any confirmed or suspected egregious act or omission by a child’s parent or other caregiver that deprives the child of basic age-appropriate needs and thereby results, or has reasonable potential to result, in physical or psychological harm to the child. Child neglect encompasses abandonment; lack of appropriate supervision; fail- ure to attend to necessary emotional or psychological needs; and failure to provide neces- sary education, medical care, nourishment, shelter, and/ or clothing. Child Neglect, Confirmed 995.52 (T74.02XA) Initial encounter 995.52 (T74.02XD) Subsequent encounter Other Conditions That May Be a Focus of Clinical Attention 719 Child Neglect, Suspected 995.52 (T 76.02“) Initial encounter 995.52 (T76.02XD) Subsequent encounter Other Circumstances Related to Child NeglectV61.21 (269.010) Encounter for mental health services for victim of child neglect by V61.21 (269.020) Encounter for mental health services for victim of nonparental child V1 5.42 (262.81 2) Personal history (past history) of neglect in childhood V61.22 (269.011) Encounter for mental health services for perpetrator of parental child V62.83 (269.021) Encounter for mental health services for perpetrator of nonparental Child psychological abuse is nonaccidental verbal or symbolic acts by a child’s parent or caregiver that result, or have reasonable potential to result, in significant psychological harm to the child. (Physical and sexual abusive acts are not included in this category.) Ex- amples of psychological abuse of a child include berating, disparaging, or humiliating the child; threatening the child; harming/abandoning—or indicating that the alleged offender will harm/abandon—people or things that the child cares about; confining the child (as by tying a child’s arms or legs together or binding a child to furniture or another object, or confining a child to a small enclosed area [e.g., a closet]); egregious scapegoating of the child; coercing the child to inflict pain on himself or herself; and disciplining the child excessively (i.e., at an extremely high frequency or duration, even if not at a level of physical abuse) through physical or nonphysical means. Child Psychological Abuse, Confirmed 995.51 (T74.32XA) Initial encounter 995.51 (T74.32XD) Subsequent encounter Child Psychological Abuse, Suspected 995.51 (T76.32XA) Initial encounter 995.51 (T76.32XD) Subsequent encounter Other Circumstances Related to Child Psychological AbuseV61 .21 (269.010) Encounter for mental health services for victim of child psychological V61.21 (269.020) Encounter for mental health services for victim of nonparental child V15.42 (262.811) Personal history (past history) of psychological abuse in childhood V61.22 (269.011) Encounter for mental health services for perpetrator of parental child V62.83 (269.021) Encounter for mental health services for perpetrator of nonparental 720 Other Conditions That May Be a Focus of Clinical Attention Spouse or Partner Violence, PhysicalThis category should be used when nonaccidental acts of physical force that result, or have reasonable potential to result, in physical harm to an intimate partner or that evoke signif- icant fear in the partner have occurred during the past year. Nonaccidental acts of physical force include shoving, slapping, hair pulling, pinching, restraining, shaking, throwing, biting, kicking, hitting with the fist or an object, burning, poisoning, applying force to the throat, cutting off the air supply, holding the head under water, and using a weapon. Acts for the purpose of physically protecting oneself or one’s partner are excluded. Spouse or Partner Violence, Physical, Confirmed 995.81 (T74.11XA) Initial encounter 995.81 (T 74.1 1 XD) Subsequent encounter Spouse or Partner Violence, Physical, Suspected 995.81 (T 76.1 1 XA) Initial encounter 995.81 (T 76.1 1 XD) Subsequent encounter Other Circumstances Related to Spouse or Partner Violence, PhysicalV61.11 (269.11) Encounter for mental health services for Victim of spouse or partner violence, physical V15.41 (291 .410) Personal history (past history) of spouse or partner violence, physical V61.12 (269.12) Encounter for mental health services for perpetrator of spouse or partner violence, physical Spouse or Partner Violence, SexualThis category should be used when forced or coerced sexual acts with an intimate partner have occurred during the past year. Sexual violence may involve the use of physical force or psychological coercion to compel the partner to engage in a sexual act against his or her will, whether or not the act is completed. Also included in this category are sexual acts with an intimate partner who is unable to consent. Spouse or Partner Violence, Sexual, Confirmed 995.83 (T7 4.21 XA) Initial encounter 995.83 (T7 4.21 XD) Subsequent encounter Spouse or Partner Violence, Sexual, Suspected 995.83 (17 6.21 XA) Initial encounter 995.83 (T7 6.21 XD) Subsequent encounter Other Circumstances Related to Spouse or Partner Violence, SexualV61.11 (269.81) Encounter for mental health services for victim of spouse or partner violence, sexual V15.41 (291.410) Personal history (past history) of spouse or partner violence, sexual V61.12 (269.12) Encounter for mental health services for perpetrator of spouse or partner violence, sexual Other Conditions That May Be a Focus of Clinical Attention 721 Partner neglect is any egregious act or omission in the past year by one partner that de- prives a dependent partner of basic needs and thereby results, or has reasonable potential to result, in physical or psychological harm to the dependent partner. This category is used in the context of relationships in which one partner is extremely dependent on the other partner for care or for assistance in navigating ordinary daily activities—for example, a partner who is incapable of self—care owing to substantial physical, psychological/intel- lectual, or cultural limitations (e.g., inability to communicate with others and manage ev- eryday activities due to living in a foreign culture). Spouse or Partner Neglect, Confirmed 995.85 (T 74.01 XA) Initial encounter 995.85 (T 74.01 XD) Subsequent encounter Spouse or Partner Neglect, Suspected 995.85 (T7 6.01 XA) Initial encounter 995.85 (T 76.01 XD) Subsequent encounter Other Circumstances Related to Spouse or Partner NeglectV61.11 (269.11) Encounter for mental health services for victim of spouse or partner V15.42 (291 .412) Personal history (past history) of spouse or partner neglect V61.12 (269.12) Encounter for mental health services for perpetrator of spouse or Spouse or Partner Abuse, Psychological partner that result, or have reasonable potential to result, in significant harm to the other partner. This category should be used when such psychological abuse has occurred during the past year. Acts of psychological abuse include berating or humiliating the victim; inter- rogating the victim; restricting the victim’s ability to come and go freely; obstructing the vic— tim’s access to assistance (e.g., law enforcement; legal, protective, or medical resources); threatening the victim with physical harm or sexual assault; harming, or threatening to harm, people or things that the victim cares about; unwarranted restriction of the victim’s ac— cess to or use of economic resources; isolating the victim from family, friends, or social sup- port resources; stalking the victim; and trying to make the victim think that he or she is crazy. Spouse or Partner Abuse, Psychological, Confirmed 995.82 (T74.31XA) Initial encounter 995.82 (T74.31XD) Subsequent encounter Spouse or Partner Abuse, Psychological, Suspected 995.82 (T7 6.31 XA) Initial encounter 995.82 (T7 6.31 XD) Subsequent encounter Other Circumstances Related to Spouse or Partner Abuse, PsychologicalV61.11 (269.11) Encounter for mental health services for victim of spouse or partner 722 Other Conditions That May Be a Focus of Clinical Attention V15.42 (291 .41 1) Personal history (past history) of spouse or partner psychological abuse V61 .12 (269.12) Encounter for mental health services for perpetrator of spouse or part- not an intimate partner. Such maltreatment may involve acts of physical, sexual, or emo- tional abuse. Examples of adult abuse include nonaccidental acts of physical force (e.g., pushing/shoving, scratching, slapping, throwing something that could hurt, punching, biting) that have resulted—or have reasonable potential to result—in physical harm or with the potential to cause psychological harm (e.g., berating or humiliating the person; interrogating the person; restricting the person’s ability to come and go freely; obstructing the person’s access to assistance; threatening the person; harming or threatening to harm people or things that the person cares about; restricting the person’s access to or use of eco- nomic resources; isolating the person from family, friends, or social support resources; stalking the person; trying to make the person think that he or she is crazy). Acts for the purpose of physically protecting oneself or the other person are excluded. Adult Physical Abuse by Nonspouse or N onpartner, Confirmed 995.81 (T 74.1 1 XA) Initial encounter 995.81 (T 74.1 1 XD) Subsequent encounter Adult Physical Abuse by Nonspouse or Nonpartner, Suspected 995.81 (T 76.1 1XA) Initial encounter 995.81 (T 76.1 1 XD) Subsequent encounter Adult Sexual Abuse by Nonspouse or Nonpartner, Confirmed 995.83 (T 74.21 XA) Initial encounter 995.83 (T74.21XD) Subsequent encounter Adult Sexual Abuse by Nonspouse or Nonpartner, Suspected 995.83 (T76.21XA) Initial encounter 995.83 (T 76.21 XD) Subsequent encounter Adult Psychological Abuse by Nonspouse or Nonpartner, Confirmed 995.82 (T 74.31 XA) Initial encounter 995.82 (T74.31XD) Subsequent encounter Adult Psychological Abuse by Nonspouse or Nonpartner, Suspected 995.82 (T76.31XA) Initial encounter 995.82 (T 76.31 XD) Subsequent encounter Other Circumstances Related to Adult Abuse by Nonspouse or Nonpartner V65.49 (269.81) Encounter for mental health services for victim of nonspousal or non— V62.83 (269.82) Encounter for mental health services for perpetrator of nonspousal or Other Conditions That May Be a Focus of Clinical Attention 723 V62.3 (255.9) Academic or Educational ProblemThis category should be used when an academic or educational problem is the focus of clinical attention or has an impact on the individual’s diagnosis, treatment, or prognosis. Problems to be considered include illiteracy or low-level literacy; lack of access to school- ing owing to unavailability or unattainability; problems with academic performance (e.g., failing school examinations, receiving failing marks or grades) or underachievement (be- low what would be expected given the individual’s intellectual capacity); discord with teachers, school staff, or other students; and any other problems related to education and / or literacy. V62.21 (256.82) Problem Related to Current Military Deployment StatusThis category should be used when an occupational problem directly related to an indi- vidual’s military deployment status is the focus of clinical attention or has an impact on the individual’s diagnosis, treatment, or prognosis. Psychological reactions to deployment are not included in this category; such reactions would be better captured as an adjustment disorder or another mental disorder. V62.29 (256.9) Other Problem Related to EmploymentThis category should be used when an occupational problem is the focus of clinical atten- tion or has an impact on the individual’s treatment or prognosis. Areas to be considered include problems with employment or in the work environment, including unemploy- ment; recent change of job; threat of job loss; job dissatisfaction; stressful work schedule; uncertainty about career choices; sexual harassment on the job; other discord with boss, supervisor, co-workers, or others in the work environment; uncongenial or hostile work environments; other psychosocial stressors related to work; and any other problems re- lated to employment and / or occupation. V60.0(259.0) HomelessnessThis category should be used when lack of a regular dwelling or living quarters has an im- pact on an individual’s treatment or prognosis. An individual is considered to be homeless if his or her primary nighttime residence is a homeless shelter, a warming shelter, a do— mestic violence shelter, a public space (e.g., tunnel, transportation station, mall), a build- ing not intended for residential use (e.g., abandoned structure, unused factory), a cardboard box or cave, or some other ad hoc housing situation. V60.1 (259.1) Inadequate HousingThis category should be used when lack of adequate housing has an impact on an individ- ual’s treatment or prognosis. Examples of inadequate housing conditions include lack of heat (in cold temperatures) or electricity, infestation by insects or rodents, inadequate plumbing and toilet facilities, overcrowding, lack of adequate sleeping space, and exces- sive noise. It is important to consider cultural norms before assigning this category. V60.89 (259.2) Discord With Neighbor, Lodger, or LandlordThis category should be used when discord with neighbors, lodgers, or a landlord is a fo- cus of clinical attention or has an impact on the individual's treatment or prognosis. 724 Other Conditions That May Be a Focus of Clinical Attention V60.6 (259.3) Problem Related to Living in a Residential Institution This category should be used when a problem (or problems) related to living in a residen- tial institution is a focus of clinical attention or has an impact on the individual’s treatment or prognosis. Psychological reactions to a change in living situation are not included in this category; such reactions would be better captured as an adjustment disorder. V60.2 (259.4) Lack of Adequate Food or Safe Drinking Water V60.2 (259.5) Extreme PovertyV60.2 (259.6) Low IncomeV60.2 (259.7) Insufficient Social Insurance or Welfare Support fare support but are not receiving such support, who receive support that is insufficient to address their needs, or who otherwise lack access to needed insurance or support pro- grams. Examples include inability to qualify for welfare support owing to lack of proper documentation or evidence of address, inability to obtain adequate health insurance be- cause of age or a preexisting condition, and denial of support owing to excessively strin- gent income or other requirements. V60.9 (259.9) Unspecified Housing or Economic ProblemThis category should be used when there is a problem related to housing or economic cir- cumstances other than as specified above. Other Problems Related to the Social EnvironmentV62.89 (260.0) Phase of Life ProblemThis category should be used when a problem adjusting to a life-cycle transition (a partic- ular developmental phase) is the focus of clinical attention or has an impact on the indi- vidual’s treatment or prognosis. Examples of such transitions include entering or completing school, leaving parental control, getting married, starting a new career, be- coming a parent, adjusting to an ”empty nest” after children leave home, and retiring. V60.3 (260.2) Problem Related to Living AloneThis category should be used when a problem associated with living alone is the focus of clinical attention or has an impact on the individual’s treatment or prognosis. Examples of such problems include chronic feelings of loneliness, isolation, and lack of structure in car— rying out activities of daily living (e.g., irregular meal and sleep schedules, inconsistent performance of home maintenance chores). V62.4 (260.3) Acculturation DifficultyThis category should be used when difficulty in adjusting to a new culture (e.g., following migration) is the focus of clinical attention or has an impact on the individual’s treatment or prognosis. V62.4 (260.4) Social Exclusion or RejectionThis category should be used when there is an imbalance of social power such that there is recurrent social exclusion or rejection by others. Examples of social rejection include bul- lying, teasing, and intimidation by others; being targeted by others for verbal abuse and humiliation; and being purposefully excluded from the activities of peers, workmates, or others in one’s social environment. V62.4 (260.5) Target of (Perceived) Adverse Discrimination or PersecutionThis category should be used when there is perceived or experienced discrimination against or persecution of the individual based on his or her membership (or perceived Other Conditions That May Be a Focus of Clinical Attention 725 membership) in a specific category. Typically, such categories include gender or gender identity, race, ethnicity, religion, sexual orientation, country of origin, political beliefs, dis- ability status, caste, social status, weight, and physical appearance. V62.9 (260.9) Unspecified Problem Related to Social EnvironmentThis category should be used when there is a problem related to the individual's social en- vironment other than as specified above. Problems Related to Crime or InteractionWith the Legal SystemV62.89 (265.4) Victim of CrimeV62.5 (265.0) Conviction in Civil or Criminal Proceedings Without Imprisonment V62.5 (265.1) Imprisonment or Other IncarcerationV62.5 (265.2) Problems Related to Release From PrisonV62.5 (265.3) Problems Related to Other Legal CircumstancesV65.49 (270.9) Sex CounselingThis category should be used when the individual seeks counseling related to sex educa- tion, sexual behavior, sexual orientation, sexual attitudes (embarrassment, timidity), oth- ers’ sexual behavior or orientation (e.g., spouse, partner, child), sexual enjoyment, or any other sex-related issue. V65.40 (271.9) Other Counseling or ConsultationThis category should be used when counseling is provided or advice/consultation is sought for a problem that is not specified above or elsewhere in this chapter. Examples in- clude spiritual or religious counseling, dietary counseling, and counseling on nicotine use. Problems Related to Other Psychosocial, Personal,V62.89 (265.8) Religious or Spiritual ProblemThis category can be used when the focus of clinical attention is a religious or spiritual problem. Examples include distressing experiences that involve loss or questioning of faith, problems associated with conversion to a new faith, or questioning of spiritual val- ues that may not necessarily be related to an organized church or religious institution. V61.7 (264.0) Problems Related to Unwanted PregnancyV61.5 (264.1) Problems Related to MultiparityV62.89 (264.4) Discord With Social Service Provider, Including Probation Officer, Case Manager, or Social Services WorkerV62.89 (265.4) Victim of Terrorism or TortureV62.22 (265.5) Exposure to Disaster, War, or Other HostilitiesV62.89 (265.8) Other Problem Related to Psychosocial CircumstancesV62.9 (265.9) Unspecified Problem Related to Unspecified Psychosocial Circum- 726 Other Conditions That May Be a Focus of Clinical Attention Other Circumstances of Personal HistoryV15.49 (291.49) Other Personal History of Psychological TraumaV15.59 (291.5) Personal History of Self-HarmV62.22 (291.82) Personal History of Military DeploymentV15.89 (291.89) Other Personal Risk FactorsV69.9 (272.9) Problem Related to LifestyleThis category should be used when a lifestyle problem is a specific focus of treatment or di- rectly affects the course, prognosis, or treatment of a mental or other medical disorder. Ex- amples of lifestyle problems include lack of physical exercise, inappropriate diet, high-risk sexual behavior, and poor sleep hygiene. A problem that is attributable to a symptom of a mental disorder should not be coded unless that problem is a specific focus of treatment or directly affects the course, prognosis, or treatment of the individual. In such cases, both the mental disorder and the lifestyle problem should be coded. V71.01 (272.811) Adult Antisocial BehaviorThis category can be used when the focus of clinical attention is adult antisocial behavior that is not due to a mental disorder (e.g., conduct disorder, antisocial personality disor- der). Examples include the behavior of some professional thieves, racketeers, or dealers in illegal substances. V71.02 (272.810) Child or Adolescent Antisocial BehaviorThis category can be used when the focus of clinical attention is antisocial behavior in a child or adolescent that is not due to a mental disorder (e.g., intermittent explosive disor- der, conduct disorder). Examples include isolated antisocial acts by children or adoles- cents (not a pattern of antisocial behavior). Problems Related to Access to MedicalV63.9 (275.3) Unavailability or Inaccessibility of Health Care FacilitiesV63.8 (275.4) Unavailability or Inaccessibility of Other Helping AgenciesNonadherence to Medical TreatmentV15.81 (291.19) Nonadherence to Medical TreatmentThis category can be used when the focus of clinical attention is nonadherence to an im- portant aspect of treatment for a mental disorder or another medical condition. Reasons for such nonadherence may include discomfort resulting from treatment (e.g., medication side effects), expense of treatment, personal value judgments or religious or cultural be- liefs about the proposed treatment, age-related debility, and the presence of a mental dis- order (e.g., schizophrenia, personality disorder). This category should be used only when the problem is sufficiently severe to warrant independent clinical attention and does not meet diagnostic criteria for psychological factors affecting other medical conditions. 278.00 (E66.9) Overweight or ObesityThis category may be used when overweight or obesity is a focus of clinical attention. V65.2 (276.5) MalingeringThe essential feature of malingering is the intentional production of false or grossly exag- gerated physical or psychological symptoms, motivated by external incentives such as avoiding military duty, avoiding work, obtaining financial compensation, evading crimi- nal prosecution, or obtaining drugs. Under some circumstances, malingering may repre- Other Conditions That May Be a Focus of Clinical Attention 727 sent adaptive behavior—for example, feigning illness while a captive of the enemy during wartime. Malingering should be strongly suspected if any combination of the following is noted: 1. Medicolegal context of presentation (e.g., the individual is referred by an attorney to the clinician for examination, or the individual self—refers while litigation or criminal charges are pending). 2. Marked discrepancy between the individual’s claimed stress or disability and the ob- jective findings and observations. 3. Lack of cooperation during the diagnostic evaluation and in complying with the pre- scribed treatment regimen. 4. The presence of antisocial personality disorder.Malingering differs from factitious disorder in that the motivation for the symptom production in malingering is an external incentive, whereas in factitious disorder external incentives are absent. Malingering is differentiated from conversion disorder and somatic symptom—related mental disorders by the intentional production of symptoms and by the obvious external incentives associated with it. Definite evidence of feigning (such as clear evidence that loss of function is present during the examination but not at home) would suggest a diagnosis of factitious disorder if the individual’s apparent aim is to assume the sick role, or malingering if it is to obtain an incentive, such as money. V40.31 (291.83) Wandering Associated With a Mental DisorderThis category is used for individuals with a mental disorder whose desire to walk about leads to significant clinical management or safety concerns. For example, individuals with wander that places them at risk for falls and causes them to leave supervised settings with- out needed accompaniment. This category excludes individuals whose intent is to escape an unwanted housing situation (e.g., children who are running away from home, patients who no longer wish to remain in the hospital) or those who walk or pace as a result of med- ication-induced akathisia. Coding note: First code associated mental disorder (e.g., major neurocognitive disor- der, autism spectrum disorder), then code V40.31 (291.83) wandering associated with [specific mental disorder]. V62.89 (R41.83) Borderline Intellectual FunctioningThis category can be used when an individual’s borderline intellectual functioning is the fo- cus of clinical attention or has an impact on the individual’s treatment or prognosis. Differ- developmental disorder) requires careful assessment of intellectual and adaptive functions and their discrepancies, particularly in the presence of co-occurring mental disorders that may affect patient compliance with standardized testing procedures (e.g., schizophrenia or attention—deficit/hyperactivity disorder with severe impulsivity). Assessment Measures ....................................... 733Cross-Cutting Symptom Measures ........................... 734Symptom Measure—Adult ............................. 738Symptom Measure—Child Age 6—17 .................... 740CIinician-Rated Dimensions of Psychosis Symptom Severity ...... 742World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) .......................................... 745 Cultural Formulation ......................................... 749Cultural Formulation Interview (CFI) ........................... 750Cultural Formulation Interview (CFI)—|nformant Version .......... 755Alternative DSM-5 Model for Personality Disorders ................ 761Conditions for Further Study .................................. 783Attenuated Psychosis Syndrome ............................. 783Depressive Episodes With Short-Duration Hypomania ........... 786Persistent Complex Bereavement Disorder .................... 789Caffeine Use Disorder ...................................... 792Internet Gaming Disorder ................................... 795Prenatal Alcohol Exposure ................................ 798Suicidal Behavior Disorder .................................. 801Nonsuicidal SeIf-Injury ..................................... 803This section contains tools and techniques to enhance the clinical deci- sion-making process, understand the cultural context of mental disorders, and recognize emerging diagnoses for further study. It provides strategies to en- hance clinical practice and new criteria to stimulate future research, represent- ing a dynamic DSM-5 that will evolve with advances in the field. Among the tools in Section III is a Level 1 cross—cutting seIf/informant-rated measure that serves as a review of systems across mental disorders. A clini- is provided, as well as the World Health Organization Disability Assessment Schedule, Version 2 (WHODAS 2.0). Level 2 severity measures are available online (www.psychiatry.org/dsm5) and may be used to explore significant re- sponses to the Level 1 screen. A comprehensive review of the cultural context of mental disorders, and the Cultural Formulation Interview (CFI) for clinical use, are provided. Proposed disorders for future study are provided, which include a new model for the diagnosis of personality disorders as an alternative to the estab- lished diagnostic criteria; the proposed model incorporates impairments in per- sonality functioning as well as pathological personality traits. Also included are new conditions that are the focus of active research, such as attenuated psy- chosis syndrome and nonsuicidal seIf-injury. A growing body of scientific evidence favors dimensional concepts in the diagnosis of mental disorders. The limitations of a categorical approach to diagnosis include the fail- ure to find zones of rarity between diagnoses (i.e., delineation of mental disorders from one another by natural boundaries), the need for intermediate categories like schizoaffective dis- order, high rates of comorbidity, frequent not—otherwise—specified (NOS) diagnoses, relative lack of utility in furthering the identification of unique antecedent validators for most men- tal disorders, and lack of treatment specificity for the various diagnostic categories. From both clinical and research perspectives, there is a need for a more dimensional approach that can be combined with DSM’s set of categorical diagnoses. Such an approach incorporates variations of features within an individual (e.g., differential severity of indi— vidual symptoms both within and outside of a disorder’s diagnostic criteria as measured by intensity, duration, or number of symptoms, along with other features such as type and severity of disabilities) rather than relying on a simple yes-or-no approach. For diagnoses for which all symptoms are needed for a diagnosis (a monothetic criteria set), different se- verity levels of the constituent symptoms may be noted. If a threshold endorsement of multiple symptoms is needed, such as at least five of nine symptoms for major depressive disorder (a polythetic criteria set), both severity levels and different combinations of the criteria may identify more homogeneous diagnostic groups. symptom experiences along with the clinician’s interpretation is consistent with current diagnostic practice. It is expected that as our understanding of basic disease mechanisms based on pathophysiology, neurocircuitry, gene-environment interactions, and laboratory tests increases, approaches that integrate both objective and subjective patient data will be developed to supplement and enhance the accuracy of the diagnostic process. Cross—cutting symptom measures modeled on general medicine’s review of systems can serve as an approach for reviewing critical psychopathological domains. The general med- ical review of systems is crucial to detecting subtle changes in different organ systems that can facilitate diagnosis and treatment. A similar review of various mental functions can aid in a more comprehensive mental status assessment by drawing attention to symptoms that may not fit neatly into the diagnostic criteria suggested by the individual’s presenting symptoms, but may nonetheless be important to the individual’s care. The cross-cutting measures have two levels: Level 1 questions are a brief survey of 13 symptom domains for adult patients and 12 domains for child and adolescent patients. Level 2 questions provide a more in-depth assessment of certain domains. These measures were developed to be administered both at initial interview and over time to track the patient’s symptom status and response to treatment. Severity measures are disorder-specific, corresponding closely to the criteria that consti- tute the disorder definition. They may be administered to individuals who have received a diagnosis or who have a clinically significant syndrome that falls short of meeting full criteria for a diagnosis. Some of the assessments are self—completed by the individual, while others require a clinician to complete. As with the cross-cutting symptom measures, these measures were developed to be administered both at initial interview and over time to track the severity of the individual’s disorder and response to treatment. The World Health Organization Disability Assessment Schedule, Version 2.0 (WHODAS 2.0) was developed to assess a patient's ability to perform activities in six areas: understanding and communicating; getting around; self—care; getting along with people; life activities (e.g., household, work/school); and participation in society. The scale is self—administered and was developed to be used in patients with any medical disorder. It corresponds to concepts contained in the WHO International Classification of Functioning, Disability and Health. This assessment can also be used over time to track changes in a patient’s dis- abilities. This chapter focuses on the DSM-5 Level 1 Cross—Cutting Symptom Measure (adult self-rated and parent/guardian versions); the Clinician-Rated Dimensions of Psychosis Symptom Severity; and the WHODAS 2.0. Clinician instructions, scoring information, and interpretation guidelines are included for each. These measures and additional dimensional assessments, including those for diagnostic severity, can be found online at www.psychiatryorg/dsmS. The DSM-5 Level 1 Cross-Cutting Symptom Measure is a patient— or informant-rated mea- sure that assesses mental health domains that are important across psychiatric diagnoses. It is intended to help clinicians identify additional areas of inquiry that may have signifi- cant impact on the individual’s treatment and prognosis. In addition, the measure may be used to track changes in the individual’s symptom presentation over time. The adult version of the measure consists of 23 questions that assess 13 psychiatric do- mains, including depression, anger, mania, anxiety, somatic symptoms, suicidal ideation, psychosis, sleep problems, memory, repetitive thoughts and behaviors, dissociation, per— sonality functioning, and substance use (Table 1). Each domain consists of one to three questions. Each item inquires about how much (or how often) the individual has been bothered by the specific symptom during the past 2 weeks. If the individual is of impaired capacity and unable to complete the form (e.g., an individual with dementia), a know]- edgeable adult informant may complete this measure. The measure was found to be clin- ically useful and to have good reliability in the DSM-5 field trials that were conducted in adult clinical samples across the United States and in Canada. The parent/guardian-rated version of the measure (for children ages 6—17) consists of 25 questions that assess 12 psychiatric domains, including depression, anger, irritability, mania, anxiety, somatic symptoms, inattention, suicidal ideation/attempt, psychosis, sleep disturbance, repetitive thoughts and behaviors, and substance use (Table 2). Each item asks the parent or guardian to rate how much (or how often) his or her child has been bothered by the specific psychiatric symptom during the past 2 weeks. The measure was also found to be clinically useful and to have good reliability in the DSM-5 field trials that were conducted in pediatric clinical samples across the United States. For children ages 11—17, along with the parent/guardian rating of the child’s symptoms, the clinician may consider having the child complete the child-rated version of the measure. The child—rated version of the measure can be found online at www.psychiatry.org/dsm5. Scoring and interpretation. On the adult self—rated version of the measure, each item is rated on a 5-point scale (0=none or not at all; 1=slight or rare, less than a day or two; 2=mild or several days; 3=moderate or more than half the days; and 4=severe or nearly every day). The score on each item within a domain should be reviewed. However, a rating of mild (i.e., 2) or greater on any item within a domain, except for substance use, suicidal ideation, and psychosis, may serve as a guide for additional inquiry and follow-up to determine if a more detailed assessment is necessary, which may include the Level 2 cross-cutting symptom as- sessment for the domain (see Table 2). For substance use, suicidal ideation, and psychosis, a TABLE 1 Adult DSM-5 Self-Rated Level 1 Cross-Cutting Symptom Measure: 13 domains, thresholds for further inquiry, and associated DSM-5 Threshold to guide DSM-5 Level 2 Cross-Cutting SymptomI. Depression Mild or greater Level 2—Depression—Adult (PROMISII. Anger Mild or greater Level 2—Anger—Adult (PROMIS Emo— 111. Mania Mild or greater Level 2—Mania—Adult(A1tman Self-Rating IV. Anxiety Mild or greater Level 2—Anxiety—Adult (PROMISV. Somatic symptoms Mild or greater Level 2—Somatic Symptom—Adult (Patient VI. Suicidal ideation Slight or greater NoneVII. Psychosis Slight or greater NoneVIII. Sleep problems Mild or greater Level 2—Sleep Disturbance—AdultIX. Memory Mild or greater NoneX. Repetitive thoughts Mild or greater Level 2—Repetitive Thoughts and XI. Dissociation Mild or greater NoneXII. Personality Mild or greater NoneXIII. Substance use Slight or greater Level 2—Substance Use—Adult (adapted from the NIDA-Modified ASSIST) Note. NIDA=National Institute on Drug Abuse.aAvailable at www.psychiatry.org/dsm5.rating of slight (i.e., 1) or greater on any item within the domain may serve as a guide for ad- ditional inquiry and follow-up to determine if a more detailed assessment is needed. As such, indicate the highest score within a domain in the ”Highest domain score” column. Table 1 outlines threshold scores that may guide further inquiry for the remaining domains. On the parent/guardian—rated version of the measure (for children ages 6—17), 19 of the 25 items are each rated on a 5—point scale (0=none or not at all; 1=slight or rare, less than a day or two; =mild or several days; 3=moderate or more than half the days; and 4=severe or nearly every day). The suicide ideation, suicide attempt, and substance abuse items are each rated on a ”Yes, No, or Don’t Know” scale. The score on each item within a domain should be re- viewed. However, with the exception of inattention and psychosis, a rating of mild (i.e., 2) or greater on any item within a domain that is scored on the 5-point scale may serve as a guide for additional inquiry and follow-up to determine if a more detailed assessment is necessary, which may include the Level 2 cross-cutting symptom assessment for the domain (see Table 2). For inattention or psychosis, a rating of slight or greater (i.e., 1 or greater) may be for child age 6—17: 12 domains, thresholds for further inquiry, and Threshold to guide DSM-5 Level 2 Cross-Cutting SymptomI. Somatic symptoms Mild or greater Level 2—Somatic Symptoms—Parent/Guard- ian of Child Age 6—17 (Patient Health 11. Sleep problems Mild or greater Level 2—Sleep Disturbance—Parent/Guard- ian of Child Age 6—17 (PROMIS Sleep III. Inattention Slight or greater Level 2—Inattention—Parent/Guardian ofChild Age 6—17(Swanson, Nolan, and Pel- ham, Version IV [SNAP-IV]) IV. Depression Mild or greater bevel 2—Depression—Parent/Guardian ofV. Anger Mild or greater Level 2—Anger—Parent/Guardian of ChildVI. Irritability Mild or greater Level 2—Irritability—Parent/Guardian ofVII. Mania Mild or greater Level 2—Mania—Parent/Guardic'1 of ChildVIII. Anxiety Mild or greater Level 2—Anxiety—Parent/Guardian of ChildIX. Psychosis Slight or greater NoneX. Repetitive thoughts Mild or greater NoneXI. Substance use Yes Level 2—Substance Use—Parent/Guardian ofChild (adapted from the NIDA-modifiedXII. Suicidal ideation/ Yes NoneNote. NIDA=National Institute on Drug Abuse.aAvailable at www.psychiatry.org/dsm5.used as an indicator for additional inquiry. A parent or guardian’s rating of "Don’t Know” on the suicidal ideation, suicide attempt, and any of the substance use items, especially for chil- dren ages 11—17 years, may result in additional probing of the issues with the child, including using the child-rated Level 2 Cross-Cutting Symptom Measure for the relevant domain. Be- cause additional inquiry is made on the basis of the highest score on any item within a do- main, clinicians should indicate that score in the ”Highest Domain Score” column. Table 2 outlines threshold scores that may guide further inquiry for the remaining domains. Any threshold scores on the Level 1 Cross-Cutting Symptom Measure (as noted in Tables clinical inquiry. Level 2 Cross-Cutting Symptom Measures provide one method of obtain- ing more in-depth information on potentially significant symptoms to inform diagnosis, treatment planning, and follow-up. They are available online at www.psychiatry.org/ dsm5. Tables 1 and 2 outline each Level 1 domain and identify the domains for which DSM-S Leve12 Cross-Cutting Symptom Measures are available for more detailed assess- ments. Adult and pediatric (parent and child) versions are available online for most Level 1 symptom domains at www.psychiatry.org/dsm5. Frequency of Use of the Cross-CUuingTo track change in the individual’s symptom presentation over time, the Level 1 and rel- clinically indicated, depending on the stability of the individual’s symptoms and treat- ment status. For individuals with impaired capacity and for children ages 6—17 years, it is preferable for the measures to be completed at follow-up appointments by the same knowledgeable informant and by the same parent or guardian. Consistently high scores on a particular domain may indicate significant and problematic symptoms for the indi- vidual that might warrant further assessment, treatment, and follow-up. 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The Clinician-Rated Dimensions of Psychosis Symptom Severity provides scales for the dimensional assessment of the primary symptoms of psychosis, in- cluding hallucinations, delusions, disorganized speech, abnormal psychomotor behavior, and negative symptoms. A scale for the dimensional assessment of cognitive impairment is also included. Many individuals with psychotic disorders have impairments in a range of cognitive domains, which predict functional abilities. In addition, scales for dimensional assessment of depression and mania are provided, which may alert clinicians to mood pa- thology. The severity of mood symptoms in psychosis has prognostic value and guides treatment. The Clinician—Rated Dimensions of Psychosis Symptom Severity is an 8-item measure that may be completed by the clinician at the time of the clinical assessment. Each item asks the clinician to rate the severity of each symptom as experienced by the individual during the past 7 days. Each item on the measure is rated on a 5-point scale (0=none; 1=equivoca1; 2=present, but mild; 3=present and moderate; and 4=present and severe) with a symptom-specific defi- nition of each rating level. The clinician may review all of the individual’s available infor- mation and, based on clinical judgment, select (by circling) the level that most accurately describes the severity of the individual’s condition. The clinician then indicates the score for each item in the ”Score” column provided. Frequency of UseTo track changes in the individual’s symptom severity over time, the measure may be completed at regular intervals as clinically indicated, depending on the stability of the in- dividual’s symptoms and treatment status. Consistently high scores on a particular do- main may indicate significant and problematic areas for the individual that might warrant further assessment, treatment, and follow-up. 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It assesses disability across six domains, including understanding and communicating, getting around, self—Care, getting along with people, life activities (i.e., household, work, and / or school activities), and participation in society. If the adult indi- vidual is of impaired capacity and unable to complete the form (e.g., a patient with demen- tia), a knowledgeable informant may complete the proxy—administered version of the measure, which is available at www.psychiatry.org/dsm5. Each item on the self-administered version of the WHODAS 2.0 asks the individual to rate how much difficulty he or she has had in specific areas of functioning during the past 30 days. WHODAS 2.0 Scoring Instructions Provided by WHOWHODAS 2.0 summary scores. There are two basic options for computing the summary scores for the WHODAS 2.0 316-item full version. Simple: The scores assigned to each of the items—"none" (1), "mild” (2), ”moderate” (3), ”severe” (4), and ”extreme” (5)—are summed. This method is referred to as simple scoring because the scores from each of the items are simply added up without recoding or collaps- ing of response categories; thus, there is no weighting of individual items. This approach is practical to use as a hand-scoring approach, and may be the method of choice in busy clin- ical settings or in paper-and-pencil interview situations. As a result, the simple sum of the scores of the items across all domains constitutes a statistic that is sufficient to describe the degree of functional limitations. Complex: The more complex method of scoring is called ”item-response-theory” (IRT)—based scoring. It takes into account multiple levels of difficulty for each WHODAS 2.0 item. It takes the coding for each item response as "none,” ”mild,” ”moderate,” ”se- vere," and ”extreme” separately, and then uses a computer to determine the summary score by differentially weighting the items and the levels of severity. The computer pro- gram is available from the WHO Web site. The scoring has three steps: 0 Step l—Summing of recoded item scores within each domain. 0 Step 2—Summing of all six domain scores.' Step 3—Converting the summary score into a metric ranging from 0 to 100 (where 0=no disability; 100=full disability). WHODAS 2.0 domain scores. WHODAS 2.0 produces domain-specific scores for six different functioning domains: cognition, mobility, self—care, getting along, life activities (household and work/school), and participation. WHODAS 2.0 population norms. For the population norms for IRT-based scoring of the WHODAS 2.0 and for the population distribution of IRT-based scores for WHODAS 2.0, please see www.Who.int/classifications / icf/ P0p_norms_distrib_IRT_scores.pdf. The clinician is asked to review the individual’s response on each item on the measure during the clinical interview and to indicate the self—reported score for each item in the sec- tion provided for "Clinician Use Only." However, if the clinician determines that the score on an item should be different based on the clinical interview and other information avail- able, he or she may indicate a corrected score in the raw item score box. Based on findings from the DSM-S Field Trials in adult patient samples across six sites in the United States and one in Canada, DSM-5 recommends calculation and use of average scores for each domain and for general disability. The average scores are comparable to the WHODAS 5-point scale, which allows the Clinician to think of the individual’s disability in terms of none (1), mild (2), moderate (3), severe (4), or extreme (5). The average domain and general disability scores were found to be reliable, easy to use, and clinically useful to the clinicians in the DSM-S Field Trials. The average domain score is calculated by dividing the raw domain score by the number of items in the domain (e.g., if all the items within the "understanding and communicating” domain are rated as being moderate then the average domain score would be 18 / 6:3, indicating moderate disability). The average general disability score is cal- culated by dividing the raw overall score by number of items in the measure (i.e., 36). The individual should be encouraged to complete all of the items on the WHODAS 2.0. If no re- sponse is given on 10 or more items of the measure (i.e., more than 25% of the 36 total items), calculation of the simple and average general disability scores may not be helpful. If 10 or more of the total items on the measure are missing but the items for some of the do- mains are 75%—100% complete, the simple or average domain scores may be used for those domains. Frequency of use. To track change in the individual’s level of disability over time, the measure may be completed at regular intervals as clinically indicated, depending on the stability of the individual's symptoms and treatment status. Consistently high scores on a particular domain may indicate significant and problematic areas for the individual that might warrant further assessment and intervention. \ WHODAS 2.0World Health Organization Disability Assessment Schedule 2.0 36-item version, self—administered Patient Name: Age: Sex: El Male CI Female Date:This questionnaire asks about difficulties due to healthimental health conditions. Health conditions include diseases or illnesses, other health problems that may be short or long lasting, injuries, mental or emotional problems, and problems with alcohol or drugs. Think back over the past 30 days and answer these questions thinking about how much difficulty you had doing the following activities, For each question, please circle only m response. : OnlyNumeric scores assigned to each of the items: 4' ; ' 1 I 1 l 3 i 4 l1. 5 g c m z . _ u, ._ In the last 30 days, how much difficulty did you have in: g E i E § g g E . . . ‘ . a . Extreme or 01.1 Concegtgtmg on doung something for ten minutes? None Mlld Moderate Severe cannot do — 01.2 Remembering to do imgortant things? None Mild Moderate Severe :33“; D13 . m all“ 0 ‘ems j‘ av None Mild Moderate Severe Extreme or e ay life? a cannot do i Learnin a new task for xam le, le ' how t 30 5 01.4 e p ammg 0 None Mild Moderate Severe Extreme or get to a new place? cannot do D13 neral und n in what people say? None Mild Moderate Severe 2mm” °' 01.6 Starting and maintaining a conversation? None Mild Moderate Severe :33; . . . - . Extreme or 02.1 Standing for long periods, §UCh as 30 minutes?‘ None Mlld Moderate Severe mm do . t . _ Extreme or 02.2 Standing ug from Slttlng down? None Mlld Moderate Severe cannot do D23 Moving around inside your home? None Mild Moderate Severe Emma °r _._. .— .. cannot do 25 5 D2.4 Getting out Of your home? None Mild Moderate Severe :3?er W “ti 3 lo ce such as a kilom r r D2.5 . ate (0 None Mild Moderate Severe Extreme or Fquwalem)? cannot do s . 7‘ ‘ Extreme Of 03.1 nghlng your whole body? None Mild Moderate Severe cannot do 03.2 Getting dressed? None Mild Moderate Severe “'3'“ °' . Extreme or 20 5 D33 Eggs? None Mild Moderate Severe cannot do . . Extreme or 03.4 Staying by yourself for a few days? None Mlld Moderate Severe cannot do Getting along with people . t Extreme or 04.1 9:31!th with people ou do not know? None Mild Moderate Seven cannot do . . . l . Extreme Of D4.2 Maintaining a friendshlg. None Mlld Moderate Severe cannot do . . . Extreme or D43 Gefimg along wuth people who are close to you? None Mlld Moderate Severe “mm do —-25 —5 D4i4 Making new friends. None Mlld Moderate Severe cannot do . . . Extreme or 04.5 Sexual actrvltles. None Mlld Moderate Severe cannot do Only .Numeric scores assigned to each of the items: I 1 I 2 l 3 l 4 l 5 E c w c In the last 30 days how much difficulty did you have in: g g E fig g E g DS.1 Taking care of your hgusghglg responsibilities? ., None M Mlld Moderate Severe mm“ °' ; . « cannot do .u , DSTZ Doing most important household tasks well? None Mild Moderate Severe 2:39er ” _ Getting all of the household work done that you " 5‘ i ‘ Extreme or I ‘ ~ J . , -—-- ~- - 20 5 053‘ NEW to do? None Mild" kModerate Severe cannot do _" 054 Getting your household work done as guuckly as None Mild Moderate Severe Extreme ar ' ’1 ; a needed? cannot do . . Life activities—School/Work E 7 '- 7‘ .If you work (paid, non»paid, self~employedl or go to school, complete questions 05.5—05.8, below. “‘ ‘ ’“ Otherwise, skip to D6.1. ‘ .,Because of your health condition, in the past 30 days how much difficulg did you have in: , 7 ’ , 05.5 Your day-to«day wogfichool? 3 : None Mild Moderate“ same“ :32: , D5.6 Doing your most important work/school tasks well? None Mild Moderate Severe E25212: " I "~ ' ’: 55.7 us all of the work done that you rfeed to do? 5 None Mlld Moderate Severe :33: —‘ 2° 5 D5.8 Getting your work done as Quickly as needed? None Mild Moderate Severe :33?er In the past 30 days: "How much of a problem did you have in 'olning in : “.- V : _ (for example festivities 3‘ 7 f : Extreme or ' .1 , , . . ' ' " N M” ' Mod at St? ' 2 , D6 lous, or other actwntles) m the same way as s ; me ' ~ ' er 5 vere cannot do - . nyone else can? - “ =.D6 2 How much of a problem did you have because of Extreme or :, ' barriers or hindrances around you? None Mild Moderate Severe cannot do l much of a problem did you have Iivlng with E 96.3 ‘ ‘ because of the attitudes and actions of None Mfld Moderate Severe $32? 06.4 Howmuch tltne dId M spend on your health None Some Mademe A Lot Extreme or 40 5 condition or Its consequences? cannot do 06.5 health condition? , , None Mild Moderate Severe cannot do _ D6.6 l-tow much has your health been a drain on the None Mild Modems Severe Extreme or ‘ fmanual resources of you or your family? cannot do 05.7 How much of a problem dld your family have None Mud M Meme Severe Extreme or so of your health problems? cannot do D6. 8 How much of a problem dld you have In domg None M" d Moderate Severe Extreme or thlngs by yourself for relaxation or pleasure? cannot do General Dlsablllty Score (Total): E T © World Health Organiution, 2012. All rights reserved. Measuring health and disability: manual for WHO Disability Assessment Schedule (WHODAS 2.0), World Health Organization, 2010, Geneva.The World Health Organization has granted the Publisher permission for the reproduction of this instrument. This material can be reproduced without permission by clinicians for use with their own patients, Any other use, including electronic use, requires written permission from WHO. _ Formul : tionE ass: .—U nd erstand in g the CU llU ral context of illness experience is essential for effec- tive diagnostic assessment and clinical management. Culture refers to systems of knowl- edge, concepts, rules, and practices that are learned and transmitted across generations. Culture includes language, religion and spirituality, family structures, life-cycle stages, ceremonial rituals, and customs, as well as moral and legal systems. Cultures are open, dynamic systems that undergo continuous change over time; in the contemporary world, most individuals and groups are exposed to multiple cultures, which they use to fashion their own identities and make sense of experience. These features of culture make it cru- cial not to overgeneralize cultural information or stereotype groups in terms of fixed cul- tural traits. Race is a culturally constructed category of identity that divides humanity into groups based on a variety of superficial physical traits attributed to some hypothetical intrinsic, biological characteristics. Racial categories and constructs have varied widely over history and across societies. The construct of race has no consistent biological definition, but it is socially important because it supports racial ideologies, racism, discrimination, and social exclusion, which can have strong negative effects on mental health. There is evidence that racism can exacerbate many psychiatric disorders, contributing to poor outcome, and that racial biases can affect diagnostic assessment. Ethnicity is a culturally constructed group identity used to define peoples and communi- ties. It may be rooted in a common history, geography, language, religion, or other shared characteristics of a group, which distinguish that group from others. Ethnicity may be self- assigned or attributed by outsiders. Increasing mobility, intermarriage, and intermixing of cultures has defined new mixed, multiple, or hybrid ethnic identities. Culture, race, and ethnicity are related to economic inequities, racism, and discrimina- tion that result in health disparities. Cultural, ethnic, and racial identities can be sources of strength and group support that enhance resilience, but they may also lead to psycholog- ical, interpersonal, and intergenerational conflict or difficulties in adaptation that require diagnostic assessment. The Outline for Cultural Formulation introduced in DSM-IV provided a framework for as— sessing information about cultural features of an individual’s mental health problem and how it relates to a social and cultural context and history. DSM-S not only includes an up- dated version of the Outline but also presents an approach to assessment, using the Cul- tural Formulation Interview (CFI), which has been field-tested for diagnostic usefulness among clinicians and for acceptability among patients. The revised Outline for Cultural Formulation calls for systematic assessment of the fol- lowing categories: I Cultural identity of the individual: Describe the individual’s racial, ethnic, or cultural reference groups that may influence his or her relationships with others, access to re- sources, and developmental and current challenges, conflicts, or predicaments. For im- migrants and racial or ethnic minorities, the degree and kinds of involvement with both the culture of origin and the host culture or majority culture should be noted separately. Language abilities, preferences, and patterns of use are relevant for identifying difficul- ties with access to care, social integration, and the need for an interpreter. Other clini— cally relevant aspects of identity may include religious affiliation, socioeconomic background, personal and family places of birth and growing up, migrant status, and sexual orientation. 0 Cultural conceptualizations of distress: Describe the cultural constructs that influence how the individual experiences, understands, and communicates his or her symptoms or problems to others. These constructs may include cultural syndromes, idioms of dis- tress, and explanatory models or perceived causes. The level of severity and meaning of the distressing experiences should be assessed in relation to the norms of the individ- ual’s cultural reference groups. Assessment of coping and help-seeking patterns should consider the use of professional as well as traditional, alternative, or complementary sources of care. . Psychosocial stressors and cultural features of vulnerability and resilience: Identify key stressors and supports in the individual’s social environment (which may include both local and distant events) and the role of religion, family, and other social networks (e.g., friends, neighbors, coworkers) in providing emotional, instrumental, and infor- mational support. Social stressors and social supports vary with cultural interpreta- tions of events, family structure, developmental tasks, and social context. Levels of functioning, disability, and resilience should be assessed in light of the individual’s cul- tural reference groups. 0 Cultural features of the relationship between the individual and the clinician: Iden- tify differences in culture, language, and social status between an individual and clini- treatment. Experiences of racism and discrimination in the larger society may impede establishing trust and safety in the clinical diagnostic encounter. Effects may include problems eliciting symptoms, misunderstanding of the cultural and clinical signifi- cance of symptoms and behaviors, and difficulty establishing or maintaining the rap- port needed for an effective clinical alliance. 0 Overall cultural assessment: Summarize the implications of the components of the cul- tural formulation identified in earlier sections of the Outline for diagnosis and other clinically relevant issues or problems as well as appropriate management and treat- ment intervention. The Cultural Formulation Interview (CFI) is a set of 16 questions that clinicians may use to obtain information during a mental health assessment about the impact of culture on key aspects of an individual’s clinical presentation and care. In the CPI, culture refers to 0 The values, orientations, knowledge, and practices that individuals derive from mem- bership in diverse social groups (e.g., ethnic groups, faith communities, occupational groups, veterans groups). 0 Aspects of an individual’s background, developmental experiences, and current social contexts that may affect his or her perspective, such as geographical origin, migration, language, religion, sexual orientation, or race/ethnicity. 0 The influence of family, friends, and other community members (the individual’s social network) on the individual’s illness experience. The CFI is a brief semistructured interview for systematically assessing cultural factors in the clinical eneounter that may be used with any individual. The CFI focuses on the in- dividual’s experience and the social contexts of the clinical problem. The CFI follows a per- son-centered approach to cultural assessment by eliciting information from the individual about his or her own views and those of others in his or her social network. This approach is designed to avoid stereotyping, in that each individual’s cultural knowledge affects how he or she interprets illness experience and guides how he or she seeks help. Because the CFI concerns the individual’s personal views, there are no right or wrong answers to these questions. The interview follows and is available online at www.psychiatry.org/dsm5. The CFI is formatted as two text columns. The left-hand column contains the instruc- tions for administering the CFI and describes the goals for each interview domain. The questions in the right-hand column illustrate how to explore these domains, but they are not meant to be exhaustive. Follow-up questions may be needed to clarify individuals’ an- swers. Questions may be rephrased as needed. The CFI is intended as a guide to cultural as- sessment and should be used flexibly to maintain a natural flow of the interview and rapport with the individual. The CFI is best used in conjunction with demographic information obtained prior to the interview in order to tailor the CPI questions to address the individual’s background and current situation. Specific demographic domains to be explored with the CFI will vary across individuals and settings. A comprehensive assessment may include place of birth, age, gender, racial/ethnic origin, marital status, family composition, education, language fluencies, sexual orientation, religious or spiritual affiliation, occupation, employment, in- come, and migration history. The CFI can be used in the initial assessment of individuals in all clinical settings, regard- less of the cultural background of the individual or of the clinician. Individuals and clini- cians who appear to share the same cultural background may nevertheless differ in ways that are relevant to care. The CFI may be used in its entirety, or components may be incor- porated into a clinical evaluation as needed. The CFI may be especially helpful when there is 0 Difficulty in diagnostic assessment owing to significant differences in the cultural, re- ligious, or socioeconomic backgrounds of clinician and the individual. Uncertainty about the fit between culturally distinctive symptoms and diagnostic criteria. Difficulty in judging illness severity or impairment.Disagreement between the individual and clinician on the course of care. Limited engagement in and adherence to treatment by the individual. The CFI emphasizes four domains of assessment: Cultural Definition of the Problem (questions 1-3); Cultural Perceptions of Cause, Context, and Support (questions 4—10); Cul- Factors Affecting Current Help Seeking (questions 14—16). Both the person-centered process of conducting the CFI and the information it elicits are intended to enhance the cultural va- lidity of diagnostic assessment, facilitate treatment planning, and promote the individual’s engagement and satisfaction. To achieve these goals, the information obtained from the CFI should be integrated with all other available clinical material into a comprehensive clinical and contextual evaluation. An Informant version of the CFI can be used to collect collateral information on the CFI domains from family members or caregivers. Supplementary modules have been developed that expand on each domain of the CFI and guide clinicians who wish to explore these domains in greater depth. Supplementary modules have also been developed for specific populations, such as children and adoles- cents, elderly individuals, and immigrants and refugees. These supplementary modules are referenced in the CFI under the pertinent subheadings and are available online at www.psychiatry.org / dsm5. Supplementary modules used to expand each CFI subtopic are noted in parentheses. GUIDE TO INTERVIEWER ITALICIZED.Thefollowing questions aim to clarify key aspects of INTRODUCTION FOR THE INDIVIDUAL: the presenting Clinical problem from the point of I would like to understand the problems that view of the individual and other members of the bring you here so that 1 can help you more individual's social network (i.e.,family,friends, or effectively. I want to know about your experi- athers involved in current problem). This includes ence and ideas. 1 will ask some questions the problem’s meaning, potential 50“"55 ofhelp, about what is going on and how you are deal- and expectations for services ing with it. Please remember there are no right or wrong answers. (Explanatory Model, Level of Functioning)Elicit the individual’s view of core problems and key 1. What brings you here today? concerns. IF INDIVIDUAL GIVES FEW DETAILS ORFocus on the individual’s own way ofunderstand- ONLY MENTIONS SYMPTOMS OR A ing the problem. MEDICAL DIAGNOSIS, PROBE: Use the term, expression, or briefdescription elicited People often understand their problems in in question 1 to identify the problem in subsequent their own way, which may be similar to or questions (e.g., “your conflict with your son"). different from how doctors describe the problem. How would you describe your problem? Ask how individualframes the problem for members 2. Sometimes people have different ways of of the social network. describing their problem to their family, friends, or others in their community. How would you describe your problem to them? Focus on the aspects of the problem that matter most 3. What troubles you most about your prob- to the individual. lem? CULTURAL PERCEPTIONS 0F CAUSE, CONTEXT, AND SUPPORT (Explanatory Model, Social Network, Older Adults) This question indicates the meaning of the condition 4. Why do you think this is happening to for the individual, which may be relevant for clin— you? What do you think are the causes of ical care. your [PROBLEM]? Note that individuals may identify multiple causes, PROMPT FURTHER IF REQUIRED: depending 0" thefacet 0f the problem they are con- Some people may explain their problem as sidering. the result of bad things that happen in their life, problems with others, a physical ill- ness, a spiritual reason, or many other causes. Focus on the views of members of the individual’s 5. What do others in your family, your social network. These may be diverse and vary from friends, or others in your community think the individual’s. is causing your [PROBLEM]? Supplementary modules used to expand each CFI subtopic are noted in parentheses. GUIDE TO INTERVIEWER ITALICIZED.(Social Network, Caregivers, Psychosocial Stressors, Religion and Spirituality, Immigrants and Refugees, Cultural Identity, Older Adults, Coping and Help Seeking)Elicit information on the individual’s life context, 6. Are there any kinds of support that make focusing on resources, social supports, and resil— your [PROBLEM] better, such as support ience. May also probe other supports (e.g., from co- from family, friends, or others? workers, from participation in religion or spiritu- ality).Focus on stressful aspects of the individual’s envi- 7. Are there any kinds of stresses that make ronment. Can also probe, e.g., relationship prob» your [PROBLEM] worse, such as difficul- lems, difi‘iculties at work or school, or ties with money, or family problems? (Cultural Identity, Psychosocial Stressors, Religion and Spirituality, Immigrants and Refugees, Older Adults, Children and Adolescents)Sometimes, aspects of people’s back-LEM] better or worse. By background or identity, I mean, for example, the commu- nities you belong to, the languages you speak, where you or your family are from, your race or ethnic background, your gen- der or sexual orientation, or your faith or religion. Ask the individual to reflect on the most salient ele— 8. For you, what are the most important ments of his or her cultural identity. Use this aspects of your background or identity? information to tailor questions 9—10 as needed.Elicit aspects of identity that make the problem bet- 9. Are there any aspects of your background ter or worse. or identity that make a difference to your Probe as needed (e.g., clinical worsening as a result [PROBLEM]? of discrimination due to migration status, race/ ethnicity, or sexual orientation). Probe as needed (e.g., migration-related problems; 10. Are there any aspects of your background conflict across generations or due to gender roles). or identity that are causing other concerns or difficulties for you? (Coping and Help Seeking, Religion and Spirituality, Older Adults, Caregivers, Clarify self-coping for the problem. 11. Sometimes people have various ways of dealing with problems like [PROBLEM]. What have you done on your own to cope with your [PROBLEM]? Supplementary modules used to expand each CFI subtopic are noted in parentheses. GUIDE TO INTERVIEWER ITALICIZED.(Coping and Help Seeking, Religion and Spirituality, Older Adults, Caregivers, Psychosocial Stressors, Immigrants and Refugees, Social Network, ClinicianvPatient Relationship)Elicit various sources ofhelp (e.g., medical care, 12. Often, people look for help from many dif- mental health treatment, support groups, work- ferent sources, including different kinds of based counseling,folk healing, religious or spiri- doctors, helpers, or healers. In the past, tual counseling, other forms of traditional or alter— what kinds of treatment, help, advice, or native healing). healing have you sought for your [PROB- Probe as needed (e.g., "What other sources of help LEM]? have you used?"). PROBE IF DOES NOT DESCRIBE USE—Clarify the individual’s experience and regard for FULNESS OF HELP RECEIVED: previous help. What types of help or treatment were most useful? Not useful? (Coping and Help Seeking, Religion and Spirituality, Older Adults, Psychosocial Stressors, Immi- grants and Refugees, Social Network, Clinician-Patient Relationship) Clarify the role of social barriers to help seeking, 13. Has anything prevented you from getting access to care, and problems engaging in previous the help you need? treatment. PROBE AS NEEDED:Probe details as needed (e.g., ”What got in the 1:01- example, money, work or family com- way? ”)~ mitments, stigma or discrimination, or lack or background? (Social Network, Caregivers, Religion and Spirituality, Older Adults, Coping and Help Seeking) Clarify individual’s current perceived needs and Now let’s talk some more about the help expectations of help, broadly defined. you need. Probe 1f individual lists only one source ofhelp (eg., 14‘ What kinds of help do you think would be “What other kinds of help would be useful to you most useful to you at this time for your at this time?”). [PROBLEM]? Focus on the views of the social network regarding 15. Are there other kinds of help that your fam— help seeking. ily, friends, or other people have suggested would be helpful for you now? (Clinician—Patient Relationship, Older Adults)Elicit possible concerns about the clinic or the clini— Sometimes doctors and patients misunder- cian-patient relationship, including perceived rac- stand each other because they come from ism, language barriers, or cultural differences that different backgrounds or have different may undermine goodwill, communication, or care expectations. delivery. 16. Have you been concerned about this and is Probe details as needed (e.g., ”In what way?"). there anything that we can do to provide Address possible barriers to care or concerns about You With the care You need? the clinic and the clinician-patient relationship raised previously.The CFI—Inforniant Version collects collateral information from an informant who is knowledgeable about the clinical problems and life circumstances of the identified indi- vidual. This version can be used to supplement information obtained from the core CFI or can be used instead of the core CFI when the individual is unable to provide information— as might occur, for example, with children or adolescents, floridly psychotic individuals, or persons with cognitive impairment. GUIDE TO INTERVIEWER ITALICIZED.The following questions aim to clarify key aspects of INTRODUCTION FOR THE INFORMANT: the presenting clinical problemfrom the infor- I would like to understand the problems that mant’s point ofview. This includes the problem’s bring your family member/friend here so meaning, potential sources ofhelp, “"d exaecta- that I can help you and him/her more effec- tions for services. tively. I want to know about your experience and ideas. I will ask some questions about what is going on and how you and your fam- ily member/friend are dealing with it. There are no right or wrong answers. Clarify the informant’s relationship with the indi- 1. How would you describe your relationship vidual and/or the individual'sfamily. to [INDIVIDUAL OR TO FAMILY]? PROBE IF NOT CLEAR:How often do you see [INDIVIDUAL]?Elicit the informant’s view of core problems and key 2. What brings your family member/friend concerns. here today? Focus on the informant’s way of understanding the IF INFORMANT GIVES FEW DETAILS OR individual's problem. ONLY MENTIONS SYMPTOMS OR A Use the term, expression, or briefdescription elicited MEDICAL DIAGNOSIS, PROBE: in question 1 to identify the problem in subsequent People often understand problems in their questions (e.g., ”her conflict with her son”). own way, which may be similar or differ- ent from how doctors describe the prob- lem. How would you describe [INDIVIDUAL’S] problem? Ask how informantframes the problem for members 3. Sometimes people have different ways of of the social network. describing the problem to family, friends, or others in their community. How would them? Focus on the aspects of the problem that matter most 4. What troubles you most about [INDIVID- to the informant. UAL’S] problem? GUIDE TO INTERVIEWER ITALICIZED.CULTURAL PERCEPTIONS OF CAUSE, CONTEXT, AND SUPPORTThis question indicates the meaning of the condition 5. Why do you think this is happening to for the informant, which may be relevant for clini— [INDIVIDUAL]? What do you think are the cal care. causes of his / her [PROBLEM]? Note that informants may identify multiple causes PROMPT FURTHER IF REQUIRED: depending on the facet of the problem they are con- Some people may explajn the problem as the sidering. result of bad things that happen in their life, problems with others, a physical illness, a spiritual reason, or many other causes. Focus on the views of members of the individual's 6. What do others in [INDIVIDUAL’S] fam- social network. These may be diverse and vary ily, his/her friends, or others in the com- from the informant's. munity think is causing [INDIVIDUAL’S] [PROBLEM]? Elicit information on the individual’s life context, 7. Are there any kinds of supports that make focusing on resources, social supports, and resil— his/her [PROBLEM] better, such as from ience. May also probe other supports ( e.g., from co- family, friends, or others? workers, from participation in religion or spiritu- ality).Focus on stressful aspects of the individual's environ— 8. Are there any kinds of stresses that make ment. Can also probe, e.g., relationship problems, dlf- his/her [PROBLEM] worse, such as diffi- ficulties at work or school, or discrimination. culties with money, or family problems? Sometimes, aspects of people’s background or identity can make the [PROBLEM] better or worse. By background or identity, I mean, for example, the communities you belong to, the languages you speak, where you or your family are from, your race or ethnic back- ground, your gender or sexual orientation, and your faith or religion. Ask the informant to reflect on the most salient ele— 9. For you, what are the most important ments of the individual’s cultural identity. Use this aspects of [INDIVIDUAL’S] background or information to tailor questions 10—11 as needed. identity? Elicit aspects of identity that make the problem bet- 104 Are there any aspects of [INDIVIDUAL’S] ter or worse. background or identity that make a differ— Probe as needed (e.g., clinical worsening as a result ence to his/her [PROBLEM]? of discrimination due to migration status, race/ ethnicity, or sexual orientation). Probe as needed (erg., migration-related problems; 11. Are there any aspects of [INDIVIDUAL’S] conflict across generations or due to gender roles). background or identity that are causing other concerns or difficulties for him/her? GUIDE TO INTERVIEWER ITALICIZED.Clarify individual's self-coping for the problem.12. Sometimes people have various ways of dealing with problems like [PROBLEM]. own to cope with his/her [PROBLEM]?Elicit various sources of help (e.g., medical care, mental health treatment, support groups, work— based counseling,folk healing, religious or spiri- tual counseling, other alternative healing). Probe as needed (e.g., ”What other sources of help has he/she used .7 ")t Clarify the individual’s experience and regard for previous help.13. Often, people also look for help from many different sources, including different kinds of doctors, helpers, or healers. In the past, what kinds of treatment, help, advice, or her [PROBLEM]? FULNESS OF HELP RECEIVED:What types of help or treatment were most useful? Not useful? Clarify the role ofsocial barriers to help—seeking, access to care, and problems engaging in previous treatment. Probe details as needed (e.g., ”What got in the way?"). 14. Has anything prevented [INDIVIDUAL] from getting the help he/she needs? PROBE AS NEEDED:For example, money, work or family com— mitments, stigma or discrimination, or lack guage or background? expectations ofhelp, broadly defined, from the point of view of the informant. Probe if informant lists only one source of help (e.g., ”What other kinds of help would be useful to [INDIVIDUAL] at this time?"). Focus on the views of the social network regarding help seeking. Now let’s talk about the help [INDIVID-UAL] needs.15. What kinds of help would be most useful to 16. Are there other kinds of help that [INDI-VIDUAL’S] family, friends, or other people her now?Elicit possible concerns about the clinic or the clini— cian—patient relationship, including perceived rac— ism, language barriers, or cultural differences that may undermine goodwill, communication, or care delivery. Probe details as needed (e.g., "In what way?”).Address possible barriers to care or concerns about the clinic and the clinician-patient relationship raised previously. stand each other because they come from expectations.17. Have you been concerned about this, and is there anything that we can do to provide [INDIVIDUAL] with the care he/she needs? Cultural Concepts of DistressCultural concepts of distress refers to ways that cultural groups experience, understand, and communicate suffering, behavioral problems, or troubling thoughts and emotions. Three main types of cultural concepts may be distinguished. Cultural syndromes are clusters of symptoms and attributions that tend to co-occur among individuals in specific cultural groups, communities, or contexts and that are recognized locally as coherent patterns of experience. Cultural idioms of distress are ways of expressing distress that may not involve specific symptoms or syndromes, but that provide collective, shared ways of experiencing and talking about personal or social concerns. For example, everyday talk about ”nerves” or ”depression” may refer to widely varying forms of suffering without mapping onto a discrete set of symptoms, syndrome, or disorder. Cultural explanations or perceived causes are labels, attributions, or features of an explanatory model that indicate culturally recog- nized meaning or etiology for symptoms, illness, or distress. These three concepts—syndromes, idioms, and explanations—are more relevant to clinical practice than the older formulation culture-bound syndrome. Specifically, the term culture-bound syndrome ignores the fact that clinically important cultural differences often involve explanations or experience of distress rather than culturally distinctive configura- tions of symptoms. Furthermore, the term culture-bound overemphasizes the local partic- ularity and limited distribution of cultural concepts of distress. The current formulation acknowledges that all forms of distress are locally shaped, including the DSM disorders. From this perspective, many DSM diagnoses can be understood as operationalized proto- types that started out as cultural syndromes, and became widely accepted as a result of their clinical and research utility. Across groups there remain culturally patterned differ- ences in symptoms, ways of talking about distress, and locally perceived causes, which are in turn associated with coping strategies and patterns of help seeking. and emotional distress, and they may also reflect the influence of biomedical concepts. Cultural concepts have four key features in relation to the DSM-S nosology: - There is seldom a one-to—one correspondence of any cultural concept with a DSM diag- nostic entity; the correspondence is more likely to be one-to-many in either direction, included in a single folk concept, and diverse presentations that might be classified by DSM-5 as variants of a single disorder may be sorted into several distinct concepts by an indigenous diagnostic system. 0 Cultural concepts may apply to a wide range of severity, including presentations that do not meet DSM criteria for any mental disorder. For example, an individual with acute grief or a social predicament may use the same idiom of distress or display the same cultural syndrome as another individual with more severe psychopathology. 0 In common usage, the same cultural term frequently denotes more than one type of cultural concept. A familiar example may be the concept of ”depression,” which may be used to describe a syndrome (e.g., major depressive disorder), an idiom of distress (e.g., as in the common expression “I feel depressed"), or a perceived cause (similar to ”stress"). 0 Like culture and DSM itself, cultural concepts may change over time in response to both local and global influences. Cultural concepts are important to psychiatric diagnosis for several reasons: ' To avoid misdiagnosis: Cultural variation in symptoms and in explanatory models as- sociated with these cultural concepts may lead clinicians to misjudge the severity of a problem or assign the wrong diagnosis (e.g., unfamiliar spiritual explanations may be misunderstood as psychosis). 0 To obtain useful clinical information: Cultural variations in symptoms and attribu- tions may be associated with particular features of risk, resilience, and outcome. I To improve clinical rapport and engagement: ”Speaking the language of the patient,” both linguistically and in terms of his or her dominant concepts and metaphors, can re- sult in greater communication and satisfaction, facilitate treatment negotiation, and lead to higher retention and adherence. 0 To improve therapeutic efficacy: Culture influences the psychological mechanisms of disorder, which need to be understood and addressed to improve clinical efficacy. For example, culturally specific catastrophic cognitions can contribute to smptom escala— tion into panic attacks. 0 To guide clinical research: Locally perceived connections between cultural concepts may help identify patterns of comorbidity and underlying biological substrates. . To clarify the cultural epidemiology: Cultural concepts of distress are not endorsed uniformly by everyone in a given culture. Distinguishing syndromes, idioms, and ex- planations provides an approach for studying the distribution of cultural features of ill- ness across settings and regions, and over time. It also suggests questions about cultural determinants of risk, course, and outcome in clinical and community settings to en- hance the evidence base of cultural research. DSM-S includes information on cultural concepts in order to improve the accuracy of diagnosis and the comprehensiveness of clinical assessment. Clinical assessment of indi- viduals presenting with these cultural concepts should determine whether they meet DSM-5 criteria for a specified disorder or an other specified or unspecified diagnosis. Once the disorder is diagnosed, the cultural terms and explanations should be included in case for- wise be confusing. Individuals whose symptoms do not meet DSM criteria for a specific by—case basis. In addition to the CFI and its supplementary modules, DSM-S contains the in clinical practice: 0 Data in DSM-S criteria and text for specific disorders: The text includes information on cultural variations in prevalence, symptomatology, associated cultural concepts, and other clinical aspects. It is important to emphasize that there is no one-to-one cor- respondence at the categorical level between DSM disorders and cultural concepts. Dif- variation with information elicited by the CFI. 0 Other Conditions That May Be a Focus of Clinical Attention: Some of the clinical con- cerns identified by the CFI may correspond to V codes or Z codes—for example, accul- turation problems, parent—child relational problems, or religious or spiritual problems. . Glossary of Cultural Concepts of Distress: Located in the Appendix, this glossary pro- vides examples of well-studied cultural concepts of distress that illustrate the relevance of cultural information for clinical diagnosis and some of the interrelationships among cultural syndromes, idioms of distress, and causal explanations. The current approach to personality disorders appears in Section II of DSM-S, and an alternative model developed for DSM-S is presented here in Section III. The inclu- sion of both models in DSM-S reflects the decision of the APA Board of Trustees to pre- serve continuity with current clinical practice, while also introducing a new approach that aims to address numerous shortcomings of the current approach to personality disorders. For example, the typical patient meeting criteria for a specific personality disorder fre- quently also meets criteria for other personality disorders. Similarly, other specified or un- specified personality disorder is often the correct (but mostly uninformative) diagnosis, in the sense that patients do not tend to present with patterns of symptoms that correspond with one and only one personality disorder. In the following alternative DSM~5 model, personality disorders are characterized by impairments in personalityfunctioning and pathological personality traits. The specific personality disorder diagnoses that may be derived from this model include antisocial, avoidant, borderline, narcissistic, obsessive-compulsive, and schizotypal personality dis- orders. This approach also includes a diagnosis of personality disorder—trait specified (PD-TS) that can be made when a personality disorder is considered present but the crite- ria for a specific disorder are not met. The essential features of a personality disorder areA. Moderate or greater impairment in personality (self/interpersonal) functioning.B. One or more pathological personality traits.C. The impairments in personality functioning and the individual’s personality trait expres- sion are relatively inflexible and pervasive across a broad range of personal and social situations. D. The impairments in personality functioning and the individual's personality trait expres- sion are relatively stable across _time, with onsets that can be traced back to at least adolescence or early adulthood. E. The impairments in personality functioning and the individual’s personality trait expres- sion are not better explained by another mental disorder. F. The impairments in personality functioning and the individual’s personality trait expres- sion are not solely attributable to the physiological effects of a substance or another medical condition (e.g., severe head trauma). G. The impairments in personality functioning and the individual’s personality trait expres- sion are not better understood as normal for an individual’s developmental stage or so- ciocultural environment. A diagnosis of a personality disorder requires two determinations: 1) an assessment of the level of impairment in personality functioning, which is needed for Criterion A, and 2) an evaluation of pathological personality traits, which is required for Criterion B. The im- pairments in personality functioning and personality trait expression are relatively inflex- ible and pervasive across a broad range of personal and social situations (Criterion C); relatively stable across time, with onsets that can be traced back to at least adolescence or E); not attributable to the effects of a substance or another medical condition (Criterion F); and not better understood as normal for an individual’s developmental stage or sociocul- tural environment (Criterion G). All Section III personality disorders described by criteria sets, as well as PD-TS, meet these general criteria, by definition. Crlterion A: Level of Personality FunctioningDisturbances in self and interpersonal functioning constitute the core of personality psy- chopathology and in this alternative diagnostic model they are evaluated on a continuum. empathy and intimacy (see Table 1). The Level of Personality Functioning Scale (LPFS; see Table 2, pp. 775—778) uses each of these elements to differentiate five levels of impairment, ranging from little or no impairment (i.e., healthy, adaptive functioning; Level 0) to some (Level 1), moderate (Level 2), severe (Level 3), and extreme (Level 4) impairment. TABLE 1 Elements of personality tunctioningSelf: 1. Identity: Experience of oneself as unique, with clear boundaries between self and others; sta— bility of self—esteem and accuracy of self—appraisal; capacity for, and ability to regulate, a range of emotional experience. 2. Self-direction:1’ursuit of coherent and meaningful short-term and life goals; utilization of constructive and prosocial internal standards of behavior; ability to self-reflect productively. Interpersonal: 1. Empathy: Comprehension and appreciation of others’ experiences and motivations; tolerance of differing perspectives; understanding the effects of one’s own behavior on others. 2. Intimacy: Depth and duration of connection with others; desire and capacity for closeness; mutuality of regard reflected in interpersonal behavior. Impairment in personality functioning predicts the presence of a personality disorder, and the severity of impairment predicts whether an individual has more than one person- ality disorder or one of the more typically severe personality disorders. A moderate level of impairment in personality functioning is required for the diagnosis of a personality dis- order; this threshold is based on empirical evidence that the moderate level of impairment maximizes the ability of clinicians to accurately and efficiently identify personality disor- der pathology. Crlterion B: Pathological Personallty TraitsPathological personality traits are organized into five broad domains: Negative Affectiv- ity, Detachment, Antagonism, Disinhibition, and Psychoticism. Within the five broad trait domains are 25 specific trait facets that were developed initially from a review of existing trait models and subsequently through iterative research with samples of persons who sought mental health services. The full trait taxonomy is presented in Table 3 (see pp. 779— 781). The B criteria for the specific personality disorders comprise subsets of the 25 trait facets, based on meta-analytic reviews and empirical data on the relationships of the traits to DSM-IV personality disorder diagnoses. Criteria C and D: Pervasiveness and StabilityImpairments in personality functioning and pathological personality traits are relatively per- vasive across a range of personal and social contexts, as personality is defined as a pattern of perceiving, relating to, and thinking about the environment and oneself. The term relatively reflects the fact that all except the most extremely pathological personalities show some de- gree of adaptability. The pattern in personality disorders is maladaptive and relatively inflex- ible, which leads to disabilities in social, occupational, or other important pursuits, as individuals are unable to modify their thinking or behavior, even in the face of evidence that their approach is not working. The impairments in functioning and personality traits are also relatively stable. Personality traits—the dispositions to behave or feel in certain ways—are more stable than the symptomatic expressions of these dispositions, but personality traits can also change. Impairments in personality functioning are more stable than symptoms. Criteria E, F, and G: Alternative Explanations forOn some occasions, what appears to be a personality disorder may be better explained by another mental disorder, the effects of a substance or another medical condition, or a nor— mal developmental stage (e.g., adolescence, late life) or the individual’s sociocultural en- vironment. When another mental disorder is present, the diagnosis of a personality disorder is not made, if the manifestations of the personality disorder clearly are an ex- pression of the other mental disorder (e.g., it features of schizotypal personality disorder are present only in the context of schizophrenia). On the other hand, personality disorders can be accurately diagnosed in the presence of another mental disorder, such as major de- pressive disorder, and patients with other mental disorders should be assessed for comor- bid personality disorders because personality disorders often impact the course of other mental disorders. Therefore, it is always appropriate to assess personality functioning and pathological personality traits to provide a context for other psychopathology. Section 111 includes diagnostic criteria for antisocial, avoidant, borderline, narcissistic, ob— sessive-compulsive, and schizotypal personality disorders. Each personality disorder is pathological personality traits (Criterion B): 0 Typical features of antisocial personality disorder are a failure to conform to lawful and ethical behavior, and an egocentric, callous lack of concern for others, accompanied by deceitfulness, irresponsibility, manipulativeness, and / or risk taking. 0 Typical features of avoidant personality disorder are avoidance of social situations and inhibition in interpersonal relationships related to feelings of ineptitude and inade- quacy, anxious preoccupation with negative evaluation and rejection, and fears of rid- icule or embarrassment. 0 Typical features of borderline personality disorder are instability of self—image, per- sonal goals, interpersonal relationships, and affects, accompanied by impulsivity, risk taking, and / 0r hostility. 0 Typical features of narcissistic personality disorder are variable and vulnerable self- esteem, with attempts at regulation through attention and approval seeking, and either overt or covert grandiosity. 0 Typical features of obsessive-compulsive personality disorder are difficulties in estab- lishing and sustaining close relationships, associated with rigid perfectionism, inflexi- bility, and restricted emotional expression. ' Typical features of schizotypal personality disorder are impairments in the capacity for social and close relationships, and eccentricities in cognition, perception, and behav- ior that are associated with distorted self—image and incoherent personal goals and ac- companied by suspiciousness and restricted emotional expression. The A and B criteria for the six specific personality disorders and for PD-TS follow. All personality disorders also meet criteria C through G of the General Criteria for Personality Typical features of antisocial personality disorder are a failure to conform to lawful and ethical behavior, and an egocentric, callous lack of concern for others, accompanied by de- ceitfulness, irresponsibility, manipulativeness, and/ or risk taking. Characteristic difficul- ties are apparent in identity, self-direction, empathy, and / or intimacy, as described below, along with specific maladaptive traits in the domains of Antagonism and Disinhibition. A. Moderate or greater impairment in personality functioning, manifested by characteristic difficulties in two or more of the following four areas: 1. Identity: Egocentrism; seIf-esteem derived trom personal gain, power, or pleasure. 2. SeIt-direction: Goal setting based on personal gratification; absence of prosocial internal standards, associated with failure to conform to lawful or culturally norma- tive ethical behavior. 3. Empathy: Lack of concern for feelings, needs, or suffering of others; lack of re- morse after hurting or mistreating another. 4. Intimacy: Incapacity for mutually intimate relationships, as exploitation is a primary means of relating to others, including by deceit and coercion; use of dominance or intimidation to control others. B. Six or more of the following seven pathological personality traits: 1. Manipulativeness (an aspect of Antagonism): Frequent use of subterfuge to in- fluence or control others; use at seduction, charm, glibness, or ingratiation to achieve one’s ends. 2. Callousness (an aspect of Antagonism): Lack of concern for feelings or problems of others; lack of guilt or remorse about the negative or harmful effects of one's ac- tions on others; aggression; sadism. 3. Deceitfulness (an aspect of Antagonism): Dishonesty and fraudulence; misrepre- sentation of self; embellishment or fabrication when relating events. 4. Hostility (an aspect of Antagonism): Persistent or frequent angry feelings; anger or irritability in response to minor slights and insults; mean, nasty, or vengeful behavior. 5. Risk taking (an aspect of Disinhibition): Engagement in dangerous, risky. and poten- tially self-damaging activities, unnecessarily and without regard for consequences; boredom proneness and thoughtless initiation of activities to counter boredom; lack of concern for one’s limitations and denial of the reality of personal danger. 6. Impulsivity (an aspect of Disinhibition): Acting on the spur of the moment in re- sponse to immediate stimuli; acting on a momentary basis without a plan or consid- eration of outcomes; difficulty establishing and following plans. 7. irresponsibility (an aspect of Disinhibition): Disregard for—and failure to honor— tinancial and other obligations or commitments; lack of respect for—and lack of toi- Iow-through on—agreements and promises.Note. The individual is at least 18 years of age. Specify it:With psychopathic features.Specifiers. A distinct variant often termed psychopathy (or ”primary” psychopathy) is marked by a lack of anxiety or fear and by a bold interpersonal style that may mask mal- adaptive behaviors (e.g., fraudulence). This psychopathic variant is characterized by low levels of anxiousness (Negative Affectivity domain) and withdrawal (Detachment do- main) and high levels of attention seeking (Antagonism domain). High attention seeking and low withdrawal capture the social potency (assertive/dominant) component of psy- chopathy, whereas low anxiousness captures the stress immunity (emotional stability/re- silience) component. In addition to psychopathic features, trait and personality functioning specifiers may be used to record other personality features that may be present in antisocial personality dis- order but are not required for the diagnosis. For example, traits of Negative Affectivity (e.g., anxiousness), are not diagnostic criteria for antisocial personality disorder (see Criterion B) but can be specified when appropriate. Furthermore, although moderate or greater impair- ment in personality functioning is required for the diagnosis of antisocial personality disor- der (Criterion A), the level of personality functioning can also be specified. Typical features of avoidant personality disorder are avoidance of social situations and in— hibition in interpersonal relationships related to feelings of ineptitude and inadequacy, anxious preoccupation with negative evaluation and rejection, and fears of ridicule or em- barrassment. Characteristic difficulties are apparent in identity, self—direction, empathy, and/ or intimacy, as described below, along with specific maladaptive traits in the do- mains of Negative Affectivity and Detachment. A. Moderate or greater impairment in personality functioning, manifest by characteristic difficulties in two or more of the following tour areas: 1. Identity: Low self—esteem associated with seIf-appraisal as socially inept. person- ally unappealing, or interior; excessive feelings of shame. 2. Selt-direction: Unrealistic standards for behavior associated with reluctance to pursue goals, take personal risks, or engage in new activities involving interper- sonal contact. 3. Empathy: Preoccupation with, and sensitivity to, criticism or rejection, associated with distorted inference of others' perspectives as negative. 4. Intimacy: Reluctance to get involved with people unless being certain of being liked; diminished mutuality within intimate relationships because of fear of being shamed or ridiculed. B. Three or more of the following four pathological personality traits. one of which must be (1) Anxiousness: 1. Anxiousness (an aspect of Negative Attectivlty): Intense feelings of nervous- ness, tenseness, or panic. often in reaction to social situations; worry about the negative effects of past unpleasant experiences and future negative possibilities; feeling tearful, apprehensive, or threatened by uncertainty; tears of embarrass- ment. 2. Withdrawal (an aspect of Detachment): Reticence in social situations; avoidance of social contacts and activity; lack of initiation of social contact. 3. Anhedonia (an aspect of Detachment): Lack of enjoyment from, engagement in, or energy for life's experiences; deficits in the capacity to feel pleasure or take in- terest in things. 4. Intimacy avoidance (an aspect of Detachment): Avoidance of close or romantic relationships, interpersonal attachments, and intimate sexual relationships. Specifiers. Considerable heterogeneity in the form of additional personality traits is found among individuals diagnosed with avoidant personality disorder. Trait and level of personality functioning specifiers can be used to record additional personality features that may be present in avoidant personality disorder. For example, other Negative Affec- tivity traits (e.g., depressivity, separation insecurity, submissiveness, suspiciousness, hos- tility) are not diagnostic criteria for avoidant personality disorder (see Criterion B) but can be specified when appropriate. Furthermore, although moderate or greater impairment in personality functioning is required for the diagnosis of avoidant personality disorder (Cri- terion A), the level of personality functioning also can be specified. Typical features of borderline personality disorder are instability of self-image, personal goals, interpersonal relationships, and affects, accompanied by impulsivity, risk taking, and/ or hostility. Characteristic difficulties are apparent in identity, self—direction, empa- thy, and / or intimacy, as described below, along with specific maladaptive traits in the do- main of Negative Affectivity, and also Antagonism and / or Disinhibition. A. Moderate or greater impairment in personality functioning, manifested by characteristic difficulties in two or more of the following tour areas: 1. Identity: Markedly impoverished, poorly developed, or unstable seIf-image, often associated with excessive self—criticism; chronic feelings of emptiness; dissociative states under stress. 2. SeIt-direction: Instability in goals, aspirations, values, or career plans. 3. Empathy: Compromised ability to recognize the feelings and needs of others asso- ciated with interpersonal hypersensitivity (i.e., prone to feel slighted or insulted); per- ceptions of others selectively biased toward negative attributes or vulnerabilities. 4. Intimacy: Intense, unstable, and conflicted close relationships, marked by mistrust, neediness, and anxious preoccupation with real or imagined abandonment; close relationships often viewed in extremes of idealization and devaluation and alternat- ing between overinvolvement and withdrawal. B. Four or more of the following seven pathological personality traits, at least one of which must be (5) Impulsivity, (6) Risk taking, or (7) Hostility: 1. Emotional lability (an aspect of Negative Affectivity): Unstable emotional expe- riences and frequent mood changes; emotions that are easily aroused, intense, and/or out of proportion to events and circumstances. 2. Anxiousness (an aspect of Negative Affectivity): Intense feelings of nervous- ness, tenseness, or panic, often in reaction to interpersonal stresses; worry about the negative effects of past unpleasant experiences and future negative possibili- ties; feeling fearful, apprehensive, or threatened by uncertainty; fears of falling apart or losing control. 3. Separation insecurity (an aspect of Negative Affectivity): Fears of rejection by— and/or separation from—significant others, associated with tears of excessive de- pendency and complete loss of autonomy. 4. Depressivity (an aspect of Negative Affectivity): Frequent feelings of being down, miserable, and/or hopeless; difficulty recovering from such moods; pessimism about the future; pervasive shame; feelings of inferior seIt-worth; thoughts of sui- cide and suicidal behavior. 5. Impulsivity (an aspect of Disinhibition): Acting on the spur of the moment in re- sponse to immediate stimuli; acting on a momentary basis without a plan or consid- eration of outcomes; difficulty establishing or following plans; a sense of urgency and seIt-harming behavior under emotional distress. 6. Risk taking (an aspect of Disinhibition): Engagement in dangerous, risky, and po- tentially selt-damaging activities, unnecessarily and without regard to conse- quences; lack of concern for one's limitations and denial of the reality of personal danger. 7. Hostility (an aspect of Antagonism): Persistent or frequent angry feelings; anger or irritability in response to minor slights and insults. Specifiers. Trait and level of personality functioning specifiers may be used to record ad- not required for the diagnosis. For example, traits of Psychoticism (e.g., cognitive and per- ceptual dysregulation) are not diagnostic criteria for borderline personality disorder (see Criterion B) but can be specified when appropriate. Furthermore, although moderate or greater impairment in personality functioning is required for the diagnosis of borderline personality disorder (Criterion A), the level of personality functioning can also be specified. Typical features of narcissistic personality disorder are variable and vulnerable self-esteem, with attempts at regulation through attention and approval seeking, and either overt 0r covert grandiosity. Characteristic difficulties are apparent in identity, self—direction, em- pathy, and/ or intimacy, as described below, along with specific maladaptive traits in the domain of Antagonism. A. Moderate or greater impairment in personality functioning, manifested by characteristic difficulties in two or more of the following tour areas: 1. Identity: Excessive reference to others for seIt-detinition and seif-esteem regula- tion; exaggerated seli—appraisal inflated or deflated, or vaciilating between extremes; emotional regulation mirrors fluctuations in self-esteem. 2. SeIt-direction: Goat setting based on gaining approval from others; personal stan- dards unreasonably high in order to see oneselt as exceptional, or too low based on a sense of entitlement; often unaware of own motivations. 3. Empathy: Impaired ability to recognize or identify with the feelings and needs of others; excessively attuned to reactions of others, but only if perceived as relevant to self; over- or underestimate of own effect on others. 4. Intimacy: Relationships largely superficial and exist to serve seli-esteem regula- dominance of a need for personal gain. B. Both of the following pathological personality traits: 1 . Grandiosity (an aspect of Antagonism): Feelings of entitlement, either overt or co- vert; selt-centeredness; firmly holding to the belief that one is better than others; condescension toward others. ' 2. Attention seeking (an aspect of Antagonism): Excessive attempts to attract and be the focus of the attention of others; admiration seeking. Specifiers. Trait and personality functioning specifiers may be used to record additional personality features that may be present in narcissistic personality disorder but are not re- quired for the diagnosis. For example, other traits of Antagonism (e.g., manipulativeness, de- ceitfulness, callousness) are not diagnostic criteria for narcissistic personality disorder (see Criterion B) but can be specified when more pervasive antagonistic features (e.g., ”malignant narcissism”) are present. Other traits of Negative Affectivity (e.g., depressivity, anxiousness) can be specified to record more "vulnerable” presentations. Furthermore, although moderate or greater impairment in personality functioning is required for the diagnosis of narcissistic personality disorder (Criterion A), the level of personality functioning can also be specified. Typical features of obsessive-compulsive personality disorder are difficulties in establish- ing and sustaining close relationships, associated with rigid perfectionism, inflexibility, and restricted emotional expression. Characteristic difficulties are apparent in identity, self—direction, empathy, and / or intimacy, as described below, along with specific mal- adaptive traits in the domains of Negative Affectivity and/ or Detachment. A. Moderate or greater impairment in personality functioning, manifested by characteristic difficulties in two or more of the following four areas: 1. Identity: Sense of self derived predominantly from work or productivity; constricted experience and expression of strong emotions. 2. SeIf-direction: Difficulty completing tasks and realizing goals, associated with rigid and unreasonably high and inflexible internal standards of behavior; overly consci- entious and moralistic attitudes. 3. Empathy: Difficulty understanding and appreciating the ideas, feelings, or behav- iors of others. 4. Intimacy: Relationships seen as secondary to work and productivity; rigidity and stubbornness negatively affect relationships with others. B. Three or more of the following four pathological personality traits, one of which must be (1) Rigid perfectionism: 1. Rigid perfectionism (an aspect of extreme Conscientiousness [the opposite pole of DetachmentD: Rigid insistence on everything being flawless, perfect, and without errors or faults, including one’s own and others’ performance; sacrificing of timeli- ness to ensure correctness in every detail; believing that there is only one right way to do things; difficulty changing ideas and/or viewpoint; preoccupation with details, organization, and order. 2. Perseveration (an aspect of Negative Affectivity): Persistence at tasks long after the behavior has ceased to be functional or effective; continuance of the same be- havior despite repeated failures. 3. Intimacy avoidance (an aspect of Detachment): Avoidance of close or romantic relationships, interpersonal attachments, and intimate sexual relationships. 4. Restricted affectivity (an aspect of Detachment): Little reaction to emotionally or coldness. Specifiers. Trait and personality functioning specifiers may be used to record additional not required for the diagnosis. For example, other traits of Negative Affectivity (e.g., anxious- ness) are not diagnostic criteria for obsessive-compulsive personality disorder (see Criterion B) but can be specified when appropriate. Furthermore, although moderate or greater impair- ment in personality functioning is required for the diagnosis of obsessive-compulsive person- ality disorder (Criterion A), the level of personality functioning can also be specified. Typical features of schizotypal personality disorder are impairments in the capacity for so- cial and close relationships and eccentricities in cognition, perception, and behavior that are associated with distorted self—image and incoherent personal goals and accompanied by suspiciousness and restricted emotional expression. Characteristic difficulties are ap- parent in identity, self—direction, empathy, and / or intimacy, along with specific maladap- tive traits in the domains of Psychoticism and Detachment. A. Moderate or greater impairment in personality functioning, manifested by characteristic difficulties in two or more of the following four areas: 1. Identity: Confused boundaries between self and others; distorted seIf-concept; emotional expression often not congruent with context or internal experience. 2. Self-direction: Unrealistic or incoherent goals; no clear set of internal standards. 3. Empathy: Pronounced difficulty understanding impact of own behaviors on others; frequent misinterpretations of others’ motivations and behaviors. 4. Intimacy: Marked impairments in developing close relationships, associated with mistrust and anxiety. B. Four or more of the following six pathological personality traits: 1. Cognitive and perceptual dysregulation (an aspect of Psychoticism): Odd or unusual thought processes; vague, circumstantial, metaphorical, overelaborate, or stereotyped thought or speech; odd sensations in various sensory modalities. 2. Unusual beliefs and experiences (an aspect of Psychoticism): Thought content and views of reality that are viewed by others as bizarre or idiosyncratic; unusual experiences of reality. 3. Eccentricity (an aspect of Psychoticism): Odd, unusual, or bizarre behavior or appearance; saying unusual or inappropriate things. 4. Restricted affectivity (an aspect of Detachment): Little reaction to emotionally or coldness. 5. Withdrawal (an aspect of Detachment): Preference for being alone to being with others; reticence in social situations; avoidance of social contacts and activity; lack of initiation of social contact. 6. Suspiciousness (an aspect of Detachment): Expectations ot—and heightened sensitivity to—signs of interpersonal iII-intent or harm; doubts about loyalty and fi- delity of others; feelings of persecution. Specifiers. Trait and personality functioning specifiers may be used to record additional personality features that may be present in schizotypal personality disorder but are not re- quired for the diagnosis. For example, traits of Negative Affectivity (e.g., depressivity, anxiousness) are not diagnostic criteria for schizotypal personality disorder (see Criterion B) but can be specified when appropriate. Furthermore, although moderate or greater im- pairment in personality functioning is required for the diagnosis of schizotypal personal- ity disorder (Criterion A), the level of personality functioning can also be specified. A. Moderate or greater impairment in personality functioning, manifested by difficulties in two or more of the following four areas: 1. Identity 2. SeIf-direction 3. Empathy 4. Intimacy B. One or more pathological personality trait domains OR specific trait facets within do- mains, considering ALL of the following domains: 1. Negative Affectivity (vs. Emotional Stability): Frequent and intense experiences of high levels of a wide range of negative emotions (e.g., anxiety, depression, guilt/ shame, worry, anger), and their behavioral (e.g., self—harm) and interpersonal (e.g., dependency) manifestations. 2. Detachment'(vs. Extraversion): Avoidance of socioemotional experience, includ- ing both withdrawal from interpersonal interactions, ranging from casual, daily in- teractions to friendships to intimate relationships, as well as restricted affective experience and expression, particularly limited hedonic capacity. 3. Antagonism (vs. Agreeableness): Behaviors that put the individual at odds with other people, including an exaggerated sense of selt-importance and a concomi- tant expectation of special treatment, as well as a callous antipathy toward others, encompassing both unawareness of others' needs and feelings, and a readiness to use others in the service of selt-enhancement. 4. Disinhibition (vs. Conscientiousness): Orientation toward immediate gratification, leading to impulsive behavior driven by current thoughts, feelings, and external stimuli, without regard for past learning or consideration of future consequences. 5. Psychoticism (vs. Lucidity): Exhibiting a wide range of culturally incongruent odd, eccentric, or unusual behaviors and cognitions, including both process (e.g., per- ception, dissociation) and content (e.g., beliefs). Subtypes. Because personality features vary continuously along multiple trait dimen- sions, a comprehensive set of potential expressions of PD-TS can be represented by DSM- 5’s dimensional model of maladaptive personality trait variants (see Table 3, pp. 779—781). Thus, subtypes are unnecessary for PD-TS, and instead, the descriptive elements that con- stitute personality are provided, arranged in an empirically based model. This arrange- ment allows clinicians to tailor the description of each individual’s personality disorder profile, considering all five broad domains of personality trait variation and drawing on the descriptive features of these domains as needed to characterize the individual. Specifiers. The specific personality features of individuals are always recorded in eval- uating Criterion'B, so the combination of personality features characterizing an individual directly constitutes the specifiers in each case. For example, two individuals who are both characterized by emotional lability, hostility, and depressivity may differ such that the first individual is characterized additionally by callousness, whereas the second is not. The requirement for any two of the tour A criteria for each of the six personality disorders was based on maximizing the relationship of these criteria to their corresponding person- ality disorder. Diagnostic thresholds for the B criteria were also set empirically to minimize change in prevalence of the disorders from DSM-IV and overlap with other personality disorders, and to maximize relationships with functional impairment. The resulting diag- nostic criteria sets represent clinically useful personality disorders with high fidelity, in terms of core impairments in personality functioning of varying degrees of severity and constellations of pathological personality traits. Individuals who have a pattern of impairment in personality functioning and maladaptive traits that matches one of the six defined personality disorders should be diagnosed with that personality disorder. If an individual also has one or even several prominent traits that may have clinical relevance in addition to those required for the diagnosis (e.g., see narcis- sistic personality disorder), the option exists for these to be noted as specifiers. Individuals whose personality functioning or trait pattern is substantially different from that of any of the six specific personality disorders should be diagnosed with PD—TS. The individual may not meet the required number of A or B criteria and, thus, have a subthreshold presentation of a personality disorder. The individual may have a mix of features of personality disorder types or some features that are less characteristic of a type and more accurately considered a mixed or atypical presentation. The specific level of impairment in personality function- ing and the pathological personality traits that characterize the individual’s personality can be specified for PD-TS, using the Level of Personality Functioning Scale (Table 2) and the pathological trait taxonomy (Table 3). The current diagnoses of paranoid, schizoid, histri- onic, and dependent personality disorders are represented also by the diagnosis of PD—TS; these are defined by moderate or greater impairment in personality functioning and can be specified by the relevant pathological personality trait combinations. Level of Personality FunctioningLike most human tendencies, personality functioning is distributed on a continuum. Cen- tral to functioning and adaptation are individuals’ characteristic ways of thinking about and understanding themselves and their interactions with others. An optimally function- ing individual has a complex, fully elaborated, and well—integrated psychological world that includes a mostly positive, volitional, and adaptive self—concept; a rich, broad, and ap- propriately regulated emotional life; and the capacity to behave as a productive member of society with reciprocal and fulfilling interpersonal relationships. At the opposite end of the continuum, an individual with severe personality pathology has an impoverished, dis- organized, and/ or conflicted psychological world that includes a weak, unclear, and mal- adaptive self—concept; a propensity to negative, dysregulated emotions; and a deficient capacity for adaptive interpersonal functioning and social behavior. Generalized severity may be the most important single predictor of concurrent and pro- spective dysfunction in assessing personality psychopathology. Personality disorders are optimally characterized by a generalized personality severity continuum with additional specification of stylistic elements, derived from personality disorder symptom constella- tions and personality traits. At the same time, the core of personality psychopathology is tion is consistent with multiple theories of personality disorder and their research bases. The components of the Level of Personality Functioning Scale—identity, self—direction, empa- thy, and intimacy (see Table 1)—are particularly central in describing a personality func- tioning continuum. Mental representations of the self and interpersonal relationships are reciprocally in- fluential and inextricably tied, affect the nature of interaction with mental health pro- fessionals, and can have a significant impact on both treatment efficacy and outcome, underscoring the importance of assessing an individual’s characteristic self—concept as well as views of other people and relationships. Although the degree of disturbance in the self and interpersonal functioning is continuously distributed, it is useful to consider the level of impairment in functioning for clinical characterization and for treatment planning and prognosis. Rating Levei of Personaiity FunctioningTo use the Level of Personality Functioning Scale (LPFS), the clinician selects the level that most closely captures the individual’s current overall level of impairment in personality func- tioning. The rating is necessary for the diagnosis of a personality disorder (moderate or greater impairment) and can be used to specify the severity of impairment present for an individual with any personality disorder at a given point in time. The LPFS may also be used as a global indicator of personality functioning without specification of a personality disorder diagnosis, or in the event that personality impairment is subthreshold for a disorder diagnosis. Criterion B in the alternative model involves assessments of personality traits that are grouped into five domains. A personality trait is a tendency to feel, perceive, behave, and think in relatively consistent ways across time and across situations in which the trait may manifest. For example, individuals with a high level of the personality trait of anxiousness would tend to feel anxious readily, including in circumstances in which most people would be calm and relaxed. Individuals high in trait anxiousness also would perceive sit- uations to be anxiety-provoking more frequently than would individuals with lower lev- els of this trait, and those high in the trait would tend to behave so as to avoid situations that they think would make them anxious. They would thereby tend to think about the world as more anxiety provoking than other people. Importantly, individuals high in trait anxiousness would not necessarily be anxious at all times and in all situations. Individuals' trait levels also can and do change throughout life. Some changes are very general and reflect maturation (e.g., teenagers generally are higher on trait impulsivity than are older adults), whereas other changes reflect individ- uals’ life experiences. Dimensionality of personality traits. All individuals can be located on the spectrum of trait dimensions; that is, personality traits apply to everyone in different degrees rather than being present versus absent. Moreover, personality traits, including those identified specifically in the Section 111 model, exist on a spectrum with two opposing poles. For ex- ample, the opposite of the trait of callousness is the tendency to be empathic and kind- hearted, even in circumstances in which most persons would not feel that way. Hence, al- though in Section 111 this trait is labeled callousness, because that pole of the dimension is the primary focus, it could be described in full as callousness versus kind-heartedness. More- over, its opposite pole can be recognized and may not be adaptive in all circumstances (e.g., individuals who, due to extreme kind-heartedness, repeatedly allow themselves to be taken advantage of by unscrupulous others). Hierarchical structure of personality. Some trait terms are quite specific (e.g., ”talkative") and describe a narrow range of behaviors, whereas others are quite broad (e.g., Detach- ment) and Characterize a wide range of behavioral propensities. Broad trait dimensions are called domains, and specific trait dimensions are calledfacets. Personality trait domains comprise a spectrum of more specific personalityfacets that tend to occur together. For ex- ample, withdrawal and anhedonia are specific traitfacets in the trait domain of Detachment. Despite some cross-cultural variation in personality trait facets, the broad domains they collectively comprise are relatively consistent across cultures. The Personality Trait ModelThe Section III personality trait system includes five broad domains of personality trait variation—Negative Affectivity (vs. Emotional Stability), Detachment (vs. Extraversion), Antagonism (vs. Agreeableness), Disinhibition (vs. Conscientiousness), and Psychoticism (vs. Lucidity)—comprising 25 specific personality trait facets. Table 3 provides definitions of all personality domains and facets. These five broad domains are maladaptive variants of the five domains of the extensively validated and replicated personality model known as the ”Big Five", or Five Factor Model of personality (FFM), and are also similar to the do- mains of the Personality Psychopathology Five (PSY-5). The specific 25 facets represent a list of personality facets chosen for their clinical relevance. Although the Trait Model focuses on personality traits associated with psychopathol- ogy, there are healthy, adaptive, and resilient personality traits identified as the polar opposites of these traits, as noted in the parentheses above (i.e., Emotional Stability, Ex- traversion, Agreeableness, Conscientiousness, and Lucidity). Their presence can greatly mitigate the effects of mental disorders and facilitate coping and recovery from traumatic injuries and other medical illness. Distinguishing Traits, Symptoms, and Specific BehaviorsAlthough traits are by no means immutable and do change throughout the life span, they show relative consistency compared with symptoms and specific behaviors. For example, a person may behave impulsively at a specific time for a specific reason (e.g., a person who is rarely impulsive suddenly decides to spend a great deal of money on a particular item because of an unusual opportunity to purchase something of unique value), but it is only when behaviors aggregate across time and circumstance, such that a pattern of behavior distinguishes between individuals, that they reflect traits. Nevertheless, it is important to recognize, for example, that even people who are impulsive are not acting impulsively all of the time. A trait is a tendency or disposition toward specific behaviors; a specific behav- ior is an instance or manifestation of a trait. Similarly, traits are distinguished from most symptoms because symptoms tend to wax and wane, whereas traits are relatively more stable. For example, individuals with higher levels of depressivity have a greater likelihood of experiencing discrete episodes of a depressive disorder and of showing the symptoms of these disorders, such difficulty con- centrating. However, even patients who have a trait propensity to depressivity typically cy— cle through distinguishable episodes of mood disturbance, and specific symptoms such as difficulty concentrating tend to wax and wane in concert with specific episodes, so they do not form part of the trait definition. Importantly, however, symptoms and traits are both amenable to intervention, and many interventions targeted at symptoms can affect the longer term patterns of personality functioning that are captured by personality traits. Assessment of the DSM-5 Section IIIThe clinical utility of the Section IH multidimensional personality trait model lies in its ability to focus attention on multiple relevant areas of personality variation in each individual patient. Rather than focusing attention on the identification of one and only one optimal diagnostic label, clinical application of the Section III personality trait model involves reviewing all five broad personality domains portrayed in Table 3. The clinical approach to personality is similar to the well-known review of systems in clinical medicine. For example, an individual’s pre- senting complaint may focus on a specific neurological symptom, yet during an initial evaluation clinicians still systematically review functioning in all relevant systems (e.g., car- diovascular, respiratory, gastrointestinal), lest an important area of diminished functioning and corresponding opportunity for effective intervention be missed. Clinical use of the Section III personality trait model proceeds similarly. An initial in- quiry reviews all five broad domains of personality. This systematic review is facilitated by the use of formal psychometric instruments designed to measure specific facets and do- mains of personality. For example, the personality trait model is operationalized in the Personality Inventory for DSM-S (PID-S), which can be completed in its self—report form by patients and in its informant-report form by those who know the patient well (e.g., a spouse). A detailed clinical assessment would involve collection of both patient- and in- formant—report data on all 25 facets of the personality trait model. However, if this is not possible, due to time or other constraints, assessment focused at the five-domain level is an acceptable clinical option when only a general (vs. detailed) portrait of a patient’s person- ality is needed (see Criterion B of PD—TS). However, if personality-based problems are the focus of treatment, then it will be important to assess individuals’ trait facets as well as do- mains. Because personality traits are continuously distributed in the population, an approach to making the judgment that a specific trait is elevated (and therefore is present for diag- nostic purposes) could involve comparing individuals’ personality trait levels with pop— ulation norms and / or clinical judgment. If a trait is elevated—that is, formal psychometric testing and/ or interview data support the clinical judgment of elevation—then it is con- sidered as contributing to meeting Criterion B of Section III personality disorders. Clinical Utility of the Multidimensional PersonalityDisorder and trait constructs each add value to the other in predicting important anteced- ent (e.g., family history, history of child abuse), concurrent (e.g., functional impairment, medication use), and predictive (e.g., hospitalization, suicide attempts) variables. DSM-S ute independently to clinical decisions about degree of disability; risks for self—harm, vio- lence, and criminality; recommended treatment type and intensity; and prognosis—all important aspects of the utility of psychiatric diagnoses. Notably, knowing the level of an the clinician with a rich base of information and is valuable in treatment planning and in predicting the course and outcome of many mental disorders in addition to personality disorders. 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