# ICD-10-CM (2010)/CHAPTER 11

​ CHAPTER 11
​=Diseases of the digestive system (K00-K93)=
    Excludes2: certain conditions originating in the perinatal period (P04-P96)
       certain infectious and parasitic diseases (A00-B99)
       complications of pregnancy, childbirth and the puerperium (O00-O99)
       congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
       endocrine, nutritional and metabolic diseases (E00-E90)
       injury, poisoning and certain other consequences of external causes (S00-T98)
       neoplasms (C00-D48)
       symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    This chapter contains the following blocks:
    K00-K14 Diseases of oral cavity and salivary glands
    K20-K31 Diseases of esophagus, stomach and duodenum
    K35-K38 Diseases of appendix
    K40-K46 Hernia
    K50-K52 Noninfective enteritis and colitis
    K55-K63 Other diseases of intestines
    K65-K68 Diseases of peritoneum and retroperitoneum
    K70-K77 Diseases of liver
    K80-K87 Disorders of gallbladder, biliary tract and pancreas
    K90-K94 Other diseases of the digestive system

# Diseases of oral cavity and salivary glands (K00-K14)Diseases of oral cavity and salivary glands (K00-K14)
## K00 Disorders of tooth development and eruptionK00 Disorders of tooth development and eruption

    Excludes2: embedded and impacted teeth (K01.-)
    K00.0 Anodontia
       Hypodontia
       Oligodontia
       Excludes1: acquired absence of teeth (K08.1-)
    K00.1 Supernumerary teeth
       Distomolar
       Fourth molar
       Mesiodens
       Paramolar
       Supplementary teeth
       Excludes2: supernumerary roots (K00.2)
    K00.2 Abnormalities of size and form of teeth
       Concrescence of teeth
       Fusion of teeth
       Gemination of teeth
       Dens ​evaginatus
       Dens in dente
       Dens invaginatus
       Enamel pearls
       Macrodontia
       Microdontia
       Peg-shaped [conical] teeth
       Supernumerary roots
       Taurodontism
       Tuberculum paramolare
       Excludes1: abnormalities of teeth due to congenital syphilis (A50.5)
          tuberculum Carabelli, which is regarded as a normal variation and should not be coded
    K00.3 Mottled teeth
       Dental fluorosis
       Mottling of enamel
       Nonfluoride enamel opacities
       Excludes2: deposits [accretions] on teeth (K03.6)
    K00.4 Disturbances in tooth formation
       Aplasia and hypoplasia of cementum
       Dilaceration of tooth
       Enamel hypoplasia (neonatal) (postnatal) (prenatal)
       Regional odontodysplasia
       Turner's tooth
       Excludes1: Hutchinson's teeth and mulberry molars in congenital syphilis (A50.5)
       Excludes2: mottled teeth (K00.3)
    K00.5 Hereditary disturbances in tooth structure, not elsewhere classified
       Amelogenesis imperfecta
       Dentinogenesis imperfecta
       Odontogenesis imperfecta
       Dentinal dysplasia
       Shell teeth
    K00.6 Disturbances in tooth eruption
       Dentia praecox
       Natal tooth
       Neonatal tooth
       Premature eruption of tooth
       Premature shedding of primary [deciduous] tooth
       Prenatal teeth
       Retained [persistent] primary tooth
       Excludes2: embedded and impacted teeth (K01.-)
    K00.7 Teething syndrome
    K00.8 Other disorders of tooth development
       Color changes during tooth formation
       Intrinsic ​staining of teeth NOS
       Excludes2: posteruptive color changes (K03.7)
    K00.9 Disorder of tooth development, unspecified
       Disorder of odontogenesis NOS

## K01 Embedded and impacted teethK01 Embedded and impacted teeth

    Excludes1: abnormal position of fully erupted teeth (M26.3-)
    K01.0 Embedded teeth
    K01.1 Impacted teeth

## K02 Dental cariesK02 Dental caries

    Includes: dental cavities, tooth decay
    K02.3 Arrested dental caries
       Arrested coronal and root caries
    K02.5 Dental caries on pit and fissure surface
       Dental caries on chewing surface of tooth
       K02.51 Dental caries on pit and fissure surface limited to enamel
          White spot lesions [initial caries] on pit and fissure surface of tooth
       K02.52 Dental caries on pit and fissure surface penetrating into dentin
       K02.53 Dental caries on pit and fissure surface penetrating into pulp
    K02.6 Dental caries on smooth surface
       K02.61 Dental caries on smooth surface limited to enamel
          White spot lesions [initial caries] on smooth surface of tooth
       K02.62 Dental caries on smooth surface penetrating into dentin
       K02.63 Dental caries on smooth surface penetrating into pulp
    K02.7 Dental root caries
    K02.9 Dental caries, unspecified

## K03 Other diseases of hard tissues of teethK03 Other diseases of hard tissues of teeth

    Excludes2: bruxism (F45.8)
       dental caries (K02.-)
       teeth-grinding NOS (F45.8)
    K03.0 Excessive attrition of teeth
       Approximal wear of teeth
       Occlusal wear of teeth
    K03.1 Abrasion of teeth
       Dentifrice abrasion of teeth
       Habitual abrasion of teeth
       Occupational abrasion of teeth
       Ritual abrasion of teeth
       Traditional abrasion of teeth
       Wedge ​defect NOS
    K03.2 Erosion of teeth
       Erosion of teeth due to diet
       Erosion of teeth due to drugs and medicaments
       Erosion of teeth due to persistent vomiting
       Erosion of teeth NOS
       Idiopathic erosion of teeth
       Occupational erosion of teeth
    K03.3 Pathological resorption of teeth
       Internal granuloma of pulp
       Resorption of teeth (external)
    K03.4 Hypercementosis
       Cementation hyperplasia
    K03.5 Ankylosis of teeth
    K03.6 Deposits [accretions] on teeth
       Betel deposits [accretions] on teeth
       Black deposits [accretions] on teeth
       Extrinsic staining of teeth NOS
       Green deposits [accretions] on teeth
       Materia alba deposits [accretions] on teeth
       Orange deposits [accretions] on teeth
       Staining of teeth NOS
       Subgingival dental calculus
       Supragingival dental calculus
       Tobacco deposits [accretions] on teeth
    K03.7 Posteruptive color changes of dental hard tissues
       Excludes2: deposits [accretions] on teeth (K03.6)
    K03.8 Other specified diseases of hard tissues of teeth
       K03.81 Cracked tooth
          Excludes1: asymptomatic craze lines in enamel - omit code
             broken or fractured tooth due to trauma (S02.5)
       K03.89 Other specified diseases of hard tissues of teeth
    K03.9 Disease of hard tissues of teeth, unspecified

## K04 Diseases of pulp and periapical tissuesK04 Diseases of pulp and periapical tissues

    K04.0 Pulpitis
       Acute pulpitis
       Chronic (hyperplastic) (ulcerative) pulpitis
       Irreversible pulpitis
       Reversible pulpitis
    K04.1 Necrosis of pulp
       Pulpal gangrene
    K04.2 Pulp degeneration
       Denticles
       Pulpal calcifications
       Pulpal ​stones
    K04.3 Abnormal hard tissue formation in pulp
       Secondary or irregular dentine
    K04.4 Acute apical periodontitis of pulpal origin
       Acute apical periodontitis NOS
       Excludes1: acute periodontitis (K05.2-)
    K04.5 Chronic apical periodontitis
       Apical or periapical granuloma
       Apical periodontitis NOS
       Excludes1: chronic periodontitis (K05.3-)
    K04.6 Periapical abscess with sinus
       Dental abscess with sinus
       Dentoalveolar abscess with sinus
    K04.7 Periapical abscess without sinus
       Dental abscess without sinus
       Dentoalveolar abscess without sinus
       Periapical abscess without sinus
    K04.8 Radicular cyst
       Apical (periodontal) cyst
       Periapical cyst
       Residual radicular cyst
       Excludes2: lateral periodontal cyst (K09.0)
    K04.9 Other and unspecified diseases of pulp and periapical tissues
       K04.90 Unspecified diseases of pulp and periapical tissues
       K04.99 Other diseases of pulp and periapical tissues

## K05 Gingivitis and periodontal diseasesK05 Gingivitis and periodontal diseases

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
       exposure to environmental tobacco smoke (Z77.22)
       exposure to tobacco smoke in the perinatal period (P96.81)
       history of tobacco use (Z87.891)
       occupational exposure to environmental tobacco smoke (Z57.31)
       tobacco dependence (F17.-)
       tobacco use (Z72.0)
    K05.0 Acute gingivitis
       Excludes1: acute necrotizing ulcerative gingivitis (A69.1)
          herpesviral [herpes simplex] gingivostomatitis (B00.2)
       K05.00 Acute gingivitis, plaque induced
          Acute gingivitis NOS
       K05.01 Acute gingivitis, non-plaque induced
    K05.1 Chronic gingivitis
       Desquamative gingivitis (chronic)
       Gingivitis (chronic) NOS
       Hyperplastic gingivitis (chronic)
       Simple marginal gingivitis (chronic)
       Ulcerative gingivitis (chronic)
       K05. ​10 Chronic gingivitis, plaque induced
          Chronic gingivitis NOS
          Gingivitis NOS
       K05.11 Chronic gingivitis, non-plaque induced
    K05.2 Aggressive periodontitis
       Acute pericoronitis
       Excludes1: acute apical periodontitis (K04.4)
          periapical abscess (K04.7)
          periapical abscess with sinus (K04.6)
       K05.20 Aggressive periodontitis, unspecified
       K05.21 Aggressive periodontitis, localized
          Periodontal abscess
       K05.22 Aggressive periodontitis, generalized
    K05.3 Chronic periodontitis
       Chronic pericoronitis
       Complex periodontitis
       Periodontitis NOS
       Simplex periodontitis
       Excludes1: chronic apical periodontitis (K04.5)
       K05.30 Chronic periodontitis, unspecified
       K05.31 Chronic periodontitis, localized
       K05.32 Chronic periodontitis, generalized
    K05.4 Periodontosis
       Juvenile periodontosis
    K05.5 Other periodontal diseases
       Excludes2: leukoplakia of gingiva (K13.21)
    K05.6 Periodontal disease, unspecified

## K06 Other disorders of gingiva and edentulous alveolar ridgeK06 Other disorders of gingiva and edentulous alveolar ridge

    Excludes2: acute gingivitis (K05.0)
       atrophy of edentulous alveolar ridge (K08.2)
       chronic gingivitis (K05.1)
       gingivitis NOS (K05.1)
    K06.0 Gingival recession
       Gingival recession (generalized) (localized) (postinfective) (postprocedural)
    K06.1 Gingival enlargement
       Gingival fibromatosis
    K06.2 Gingival and edentulous alveolar ridge lesions associated with trauma
       Irritative hyperplasia of edentulous ridge [denture hyperplasia]
       Use additional code (Chapter 20) to identify external cause or denture status (Z97.2)
    K06.8 Other specified disorders of gingiva and edentulous alveolar ridge
       Fibrous epulis
       Flabby alveolar ridge
       Giant ​cell epulis
       Peripheral giant cell granuloma of gingiva
       Pyogenic granuloma of gingiva
       Excludes2: gingival cyst (K09.0)
    K06.9 Disorder of gingiva and edentulous alveolar ridge, unspecified

## K08 Other disorders of teeth and supporting structuresK08 Other disorders of teeth and supporting structures

    Excludes2: dentofacial anomalies [including malocclusion] (M26.-)
       disorders of jaw (M27.-)
    K08.0 Exfoliation of teeth due to systemic causes
       Code also underlying systemic condition
    K08.1 Complete loss of teeth
       Acquired loss of teeth, complete
       Excludes1: congenital absence of teeth (K00.0)
          exfoliation of teeth due to systemic causes (K08.0)
          partial loss of teeth (K08.4-)
       K08.10 Complete loss of teeth, unspecified cause
          K08.101 Complete loss of teeth, unspecified cause, class I
          K08.102 Complete loss of teeth, unspecified cause, class II
          K08.103 Complete loss of teeth, unspecified cause, class III
          K08.104 Complete loss of teeth, unspecified cause, class IV
          K08.109 Complete loss of teeth, unspecified cause, unspecified class
             Edentulism NOS
       K08.11 Complete loss of teeth due to trauma
          K08.111 Complete loss of teeth due to trauma, class I
          K08.112 Complete loss of teeth due to trauma, class II
          K08.113 Complete loss of teeth due to trauma, class III
          K08.114 Complete loss of teeth due to trauma, class IV
          K08.119 Complete loss of teeth due to trauma, unspecified class
       K08.12 Complete loss of teeth due to periodontal diseases
          K08.121 Complete loss of teeth due to periodontal diseases, class I
          K08.122 Complete loss of teeth due to periodontal diseases, class II
          K08.123 Complete loss of teeth due to periodontal diseases, class III
          K08. ​124 Complete loss of teeth due to periodontal diseases, class IV
          K08.129 Complete loss of teeth due to periodontal diseases, unspecified class
       K08.13 Complete loss of teeth due to caries
          K08.131 Complete loss of teeth due to caries, class I
          K08.132 Complete loss of teeth due to caries, class II
          K08.133 Complete loss of teeth due to caries, class III
          K08.134 Complete loss of teeth due to caries, class IV
          K08.139 Complete loss of teeth due to caries, unspecified class
       K08.19 Complete loss of teeth due to other specified cause
          K08.191 Complete loss of teeth due to other specified cause, class I
          K08.192 Complete loss of teeth due to other specified cause, class II
          K08.193 Complete loss of teeth due to other specified cause, class III
          K08.194 Complete loss of teeth due to other specified cause, class IV
          K08.199 Complete loss of teeth due to other specified cause, unspecified class
    K08.2 Atrophy of edentulous alveolar ridge
       K08.20 Unspecified atrophy of edentulous alveolar ridge
          Atrophy of the mandible NOS
          Atrophy of the maxilla NOS
       K08.21 Minimal atrophy of the mandible
          Minimal atrophy of the edentulous mandible
       K08.22 Moderate atrophy of the mandible
          Moderate atrophy of the edentulous mandible
       K08.23 Severe atrophy of the mandible
          Severe atrophy of the edentulous mandible
       K08.24 Minimal atrophy of maxilla
          Minimal atrophy of the edentulous maxilla
       K08.25 Moderate atrophy of the maxilla
          Moderate atrophy of the edentulous maxilla
       K08.26 Severe atrophy of the maxilla
          Severe atrophy of the edentulous maxilla
    K08.3 Retained dental root
    K08.4 Partial loss of teeth
       Acquired loss of teeth, partial
       Excludes1: complete loss of teeth (K08.1-)
          congenital ​absence of teeth (K00.0)
          Excludes2: exfoliation of teeth due to systemic causes (K08.0)
       K08.40 Partial loss of teeth, unspecified cause
          K08.401 Partial loss of teeth, unspecified cause, class I
          K08.402 Partial loss of teeth, unspecified cause, class II
          K08.403 Partial loss of teeth, unspecified cause, class III
          K08.404 Partial loss of teeth, unspecified cause, class IV
          K08.409 Partial loss of teeth, unspecified cause, unspecified class
             Tooth extraction status NOS
       K08.41 Partial loss of teeth due to trauma
          K08.411 Partial loss of teeth due to trauma, class I
          K08.412 Partial loss of teeth due to trauma, class II
          K08.413 Partial loss of teeth due to trauma, class III
          K08.414 Partial loss of teeth due to trauma, class IV
          K08.419 Partial loss of teeth due to trauma, unspecified class
       K08.42 Partial loss of teeth due to periodontal diseases
          K08.421 Partial loss of teeth due to periodontal diseases, class I
          K08.422 Partial loss of teeth due to periodontal diseases, class II
          K08.423 Partial loss of teeth due to periodontal diseases, class III
          K08.424 Partial loss of teeth due to periodontal diseases, class IV
          K08.429 Partial loss of teeth due to periodontal diseases, unspecified class
       K08.43 Partial loss of teeth due to caries
          K08.431 Partial loss of teeth due to caries, class I
          K08.432 Partial loss of teeth due to caries, class II
          K08.433 Partial loss of teeth due to caries, class III
          K08.434 Partial loss of teeth due to caries, class IV
          K08.439 Partial loss of teeth due to caries, unspecified class
       K08.49 Partial loss of teeth due to other specified cause
          K08.491 Partial loss of teeth due to other specified cause, class I
          K08. ​492 Partial loss of teeth due to other specified cause, class II
          K08.493 Partial loss of teeth due to other specified cause, class III
          K08.494 Partial loss of teeth due to other specified cause, class IV
          K08.499 Partial loss of teeth due to other specified cause, unspecified class
    K08.5 Unsatisfactory restoration of tooth
       Defective bridge, crown, filling
       Defective dental restoration
       Excludes1: dental restoration status (Z98.811)
       Excludes2: endosseous dental implant failure (M27.6-)
          unsatisfactory endodontic treatment (M27.5-)
       K08.50 Unsatisfactory restoration of tooth, unspecified
          Defective dental restoration NOS
       K08.51 Open restoration margins of tooth
          Dental restoration failure of marginal integrity
          Open margin on tooth restoration
          Poor gingival margin to tooth restoration
       K08.52 Unrepairable overhanging of dental restorative materials
          Overhanging of tooth restoration
       K08.53 Fractured dental restorative material
          Excludes1: cracked tooth (K03.81)
             traumatic fracture of tooth (S02.5)
          K08.530 Fractured dental restorative material without loss of material
          K08.531 Fractured dental restorative material with loss of material
          K08.539 Fractured dental restorative material, unspecified
       K08.54 Contour of existing restoration of tooth biologically incompatible with oral health
          Dental restoration failure of periodontal anatomical integrity
          Unacceptable contours of existing restoration of tooth
          Unacceptable morphology of existing restoration of tooth
       K08.55 Allergy to existing dental restorative material
          Use additional code to identify the specific type of allergy
       K08.56 Poor aesthetic of existing restoration of tooth
          Dental restoration aesthetically inadequate or displeasing
       K08.59 Other unsatisfactory restoration of tooth
          Other ​defective dental restoration
    K08.8 Other specified disorders of teeth and supporting structures
       Enlargement of alveolar ridge NOS
       Irregular alveolar process
       Toothache NOS
    K08.9 Disorder of teeth and supporting structures, unspecified

## K09 Cysts of oral region, not elsewhere classifiedK09 Cysts of oral region, not elsewhere classified

    Includes: lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
    Excludes2: cysts of jaw (M27.0-, M27.4-)
       radicular cyst (K04.8)
    K09.0 Developmental odontogenic cysts
       Excludes2: keratocysts D16.4, D16.5
          odontogenic keratocystic tumors D16.4, D16.5
          Dentigerous cyst
          Eruption cyst
          Follicular cyst
          Gingival cyst
          Lateral periodontal cyst
          Primordial cyst
    K09.1 Developmental (nonodontogenic) cysts of oral region
       Cyst (of) incisive canal
       Cyst (of) palatine of papilla
       Globulomaxillary cyst
       Median palatal cyst
       Nasopalatine cyst
    K09.8 Other cysts of oral region, not elsewhere classified
       Dermoid cyst
       Epidermoid cyst
       Lymphoepithelial cyst
       Epstein's pearl
       Nasoalveolar cyst
       Nasolabial cyst
    K09.9 Cyst of oral region, unspecified

## K11 Diseases of salivary glandsK11 Diseases of salivary glands

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
       exposure to environmental tobacco smoke (Z77.22)
       exposure to tobacco smoke in the perinatal period (P96.81)
       history of tobacco use (Z87.891)
       occupational exposure to environmental tobacco smoke (Z57.31)
       tobacco dependence (F17.-)
       tobacco use (Z72.0)
    K11.0 Atrophy of salivary gland
    K11.1 Hypertrophy of salivary gland
    K11. ​2 Sialoadenitis
       Parotitis
       Excludes1: epidemic parotitis (B26.-)
          mumps (B26.-)
          uveoparotid fever [Heerfordt] (D86.89)
       K11.20 Sialoadentitis, unspecified
       K11.21 Acute sialoadenitis
          Excludes1: acute recurrent sialoadenitis (K11.22)
       K11.22 Acute recurrent sialoadenitis
       K11.23 Chronic sialoadenitis
       K11.3 Abscess of salivary gland
    K11.4 Fistula of salivary gland
       Excludes1: congenital fistula of salivary gland (Q38.4)
    K11.5 Sialolithiasis
       Calculus of salivary gland or duct
       Stone of salivary gland or duct
    K11.6 Mucocele of salivary gland
       Mucous extravasation cyst of salivary gland
       Mucous retention cyst of salivary gland
       Ranula
    K11.7 Disturbances of salivary secretion
       Hypoptyalism
       Ptyalism
       Xerostomia
       Excludes2: dry mouth NOS (R68.2)
    K11.8 Other diseases of salivary glands
       Benign lymphoepithelial lesion of salivary gland
       Mikulicz' disease
       Necrotizing sialometaplasia
       Sialectasia
       Stenosis of salivary duct
       Stricture of salivary duct
       Excludes1: sicca syndrome [Sj?gren] (M35.0-)
    K11.9 Disease of salivary gland, unspecified
       Sialoadenopathy NOS

## K12 Stomatitis and related lesionsK12 Stomatitis and related lesions

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
       exposure to environmental tobacco smoke (Z77.22)
       exposure to tobacco smoke in the perinatal period (P96.81)
       history of tobacco use (Z87.891)
       occupational exposure to environmental tobacco smoke (Z57.31)
       tobacco dependence (F17.-)
       tobacco use (Z72.0)
    Excludes1: cancrum oris (A69.0)
       cheilitis (K13.0)
       gangrenous ​stomatitis (A69.0)
       herpesviral [herpes simplex] gingivostomatitis (B00.2)
       noma (A69.0)
    K12.0 Recurrent oral aphthae
       Aphthous stomatitis (major) (minor)
       Bednar's aphthae
       Periadenitis mucosa necrotica recurrens
       Recurrent aphthous ulcer
       Stomatitis herpetiformis
    K12.1 Other forms of stomatitis
       Stomatitis NOS
       Denture stomatitis
       Ulcerative stomatitis
       Vesicular stomatitis
       Excludes1: acute necrotizing ulcerative stomatitis (A69.1)
          Vincent's stomatitis (A69.1)
    K12.2 Cellulitis and abscess of mouth
       Cellulitis of mouth (floor)
       Submandibular abscess
       Excludes2: abscess of salivary gland (K11.3)
          abscess of tongue (K14.0)
          periapical abscess (K04.6-K04.7)
          periodontal abscess (K05.21)
          peritonsillar abscess (J36)
    K12.3 Oral mucositis (ulcerative)
       Mucositis (oral) (oropharyneal)
       Excludes2: gastrointestinal mucositis (ulcerative) (K92.81)
          mucositis (ulcerative) of vagina and vulva (N76.81)
          nasal mucositis (ulcerative) (J34.81)
       K12.30 Oral mucositis (ulcerative), unspecified
       K12.31 Oral mucositis (ulcerative) due to antineoplastic therapy
          Code also type of associated therapy, such as:
          antineoplastic and immunosuppressive drugs (T45.1x-)
          radiological procedure and radiotherapy (Y84.2)
       K12.32 Oral mucositis (ulcerative) due to other drugs
          Code also drug (T36-T50)
       K12.33 Oral mucositis (ulcerative) due to radiation
          Use additional external cause code (W88-W90, X39.0-) to identify cause
       K12.39 Other oral mucositis (ulcerative)
          Viral oral mucositis (ulcerative)

## K13 Other diseases of lip and oral mucosaK13 Other diseases of lip and oral mucosa

    Includes: epithelial disturbances of tongue
    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
       exposure ​to environmental tobacco smoke (Z77.22)
       exposure to tobacco smoke in the perinatal period (P96.81)
       history of tobacco use (Z87.891)
       occupational exposure to environmental tobacco smoke (Z57.31)
       tobacco dependence (F17.-)
       tobacco use (Z72.0)
    Excludes2: certain disorders of gingiva and edentulous alveolar ridge (K05-K06)
       cysts of oral region (K09.-)
       diseases of tongue (K14.-)
       stomatitis and related lesions (K12.-)
    K13.0 Diseases of lips
       Abscess of lips
       Angular cheilitis
       Cellulitis of lips
       Cheilitis NOS
       Cheilodynia
       Cheilosis
       Exfoliative cheilitis
       Fistula of lips
       Glandular cheilitis
       Hypertrophy of lips
       Perl?che NEC
       Excludes1: ariboflavinosis (E53.0)
          cheilitis due to radiation-related disorders (L55-L59)
          congenital fistula of lips (Q38.0)
          congenital hypertrophy of lips (Q18.6)
          perl?che due to candidiasis (B37.83)
          perl?che due to riboflavin deficiency (E53.0)
    K13.1 Cheek and lip biting
    K13.2 Leukoplakia and other disturbances of oral epithelium, including tongue
       Excludes1: carcinoma in situ of oral epithelium (D00.0-)
          hairy leukoplakia (K13.3)
       K13.21 Leukoplakia of oral mucosa, including tongue
          Leukokeratosis of oral mucosa
          Leukoplakia of gingiva, lips, tongue
          Excludes1: hairy leukoplakia (K13.3)
             leukokeratosis nicotina palati (K13.24)
       K13.22 Minimal keratinized residual ridge mucosa
          Minimal keratinization of alveolar ridge mucosa
       K13.23 Excessive keratinized residual ridge mucosa
          Excessive keratinization of alveolar ridge mucosa
       K13.24 Leukokeratosis nicotina palati
          Smoker's palate
       K13.29 Other disturbances of oral epithelium, including tongue
          Erythroplakia of mouth or tongue
          Focal ​epithelial hyperplasia of mouth or tongue
          Leukoedema of mouth or tongue
          Other oral epithelium disturbances
    K13.3 Hairy leukoplakia
    K13.4 Granuloma and granuloma-like lesions of oral mucosa
       Eosinophilic granuloma
       Granuloma pyogenicum
       Verrucous xanthoma
    K13.5 Oral submucous fibrosis
       Submucous fibrosis of tongue
    K13.6 Irritative hyperplasia of oral mucosa
       Excludes2: irritative hyperplasia of edentulous ridge [denture hyperplasia] (K06.2)
    K13.7 Other and unspecified lesions of oral mucosa
       K13.70 Unspecified lesions of oral mucosa
       K13.79 Other lesions of oral mucosa
          Focal oral mucinosis

## K14 Diseases of tongueK14 Diseases of tongue

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
       exposure to environmental tobacco smoke (Z77.22)
       history of tobacco use (Z87.891)
       occupational exposure to environmental tobacco smoke (Z57.31)
       tobacco dependence (F17.-)
       tobacco use (Z72.0)
    Excludes2: erythroplakia (K13.29)
       focal epithelial hyperplasia (K13.29)
       leukedema of tongue (K13.29)
       leukoplakia of tongue (K13.21)
       hairy leukoplakia (K13.3)
       macroglossia (congenital) (Q38.2)
       submucous fibrosis of tongue (K13.5)
    K14.0 Glossitis
       Abscess of tongue
       Ulceration (traumatic) of tongue
       Excludes1: atrophic glossitis (K14.4)
    K14.1 Geographic tongue
       Benign migratory glossitis
       Glossitis areata exfoliativa
    K14.2 Median rhomboid glossitis
    K14.3 Hypertrophy of tongue papillae
       Black hairy tongue
       Coated tongue
       Hypertrophy of foliate papillae
       Lingua villosa nigra
    K14.4 Atrophy of tongue papillae
       Atrophic ​glossitis
    K14.5 Plicated tongue
       Fissured tongue
       Furrowed tongue
       Scrotal tongue
       Excludes1: fissured tongue, congenital (Q38.3)
    K14.6 Glossodynia
       Glossopyrosis
       Painful tongue
    K14.8 Other diseases of tongue
       Atrophy of tongue
       Crenated tongue
       Enlargement of tongue
       Glossocele
       Glossoptosis
       Hypertrophy of tongue
    K14.9 Disease of tongue, unspecified
       Glossopathy NOS

# Diseases of esophagus, stomach and duodenum (K20-K31)Diseases of esophagus, stomach and duodenum (K20-K31)

    Excludes2: hiatus hernia (K44.-)

## K20 EsophagitisK20 Esophagitis

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
    Excludes1: erosion of esophagus (K22.1-)
       esophagitis with gastro-esophageal reflux disease (K21.0)
       reflux esophagitis (K21.0)
       ulcerative esophagitis (K22.1-)
    Excludes2: eosinophilic gastritis or gastroenteritis (K52.81)
    K20.0 Eosinophilic esophagitis
    K20.8 Other esophagitis
       Abscess of esophagus
    K20.9 Esophagitis, unspecified
       Esophagitis NOS

## K21 Gastro-esophageal reflux diseaseK21 Gastro-esophageal reflux disease

    Excludes1: newborn esophageal reflux (P78.83)
    K21.0 Gastro-esophageal reflux disease with esophagitis
       Reflux esophagitis
    K21.9 Gastro-esophageal reflux disease without esophagitis
       Esophageal reflux NOS

## K22 Other diseases of esophagusK22 Other diseases of esophagus

    Excludes2: ​esophageal varices (I85.-)
    K22.0 Achalasia of cardia
       Achalasia NOS
       Cardiospasm
       Excludes1: congenital cardiospasm (Q39.5)
    K22.1 Ulcer of esophagus
       Barrett's ulcer
       Erosion of esophagus
       Fungal ulcer of esophagus
       Peptic ulcer of esophagus
       Ulcer of esophagus due to ingestion of chemicals
       Ulcer of esophagus due to ingestion of drugs and medicaments
       Ulcerative esophagitis
       Code first (T36-T65) to identify drug or chemical
       Excludes1: Barrett's esophagus (K22.81)
       K22.10 Ulcer of esophagus without bleeding
          Ulcer of esophagus NOS
       K22.11 Ulcer of esophagus with bleeding
          Excludes2: bleeding esophageal varices (I85.01, I85.11)
    K22.2 Esophageal obstruction
       Compression of esophagus
       Constriction of esophagus
       Stenosis of esophagus
       Stricture of esophagus
       Excludes1: congenital stenosis or stricture of esophagus (Q39.3)
    K22.3 Perforation of esophagus
       Rupture of esophagus
       Excludes1: traumatic perforation of (thoracic) esophagus (S27.8-)
    K22.4 Dyskinesia of esophagus
       Corkscrew esophagus
       Diffuse esophageal spasm
       Spasm of esophagus
       Excludes1: cardiospasm (K22.0)
    K22.5 Diverticulum of esophagus, acquired
       Esophageal pouch, acquired
       Excludes1: diverticulum of esophagus (congenital) (Q39.6)
    K22.6 Gastro-esophageal laceration-hemorrhage syndrome
       Mallory-Weiss syndrome
    K22.7 Barrett's esophagus
       Barrett's disease
       Barrett's syndrome
       Excludes1: Barrett's ulcer (K22.1)
          malignant neoplasm of esophagus (C15.-)
       K22.70 Barrett's esophagus without dysplasia
          Barrett's esophagus NOS
       K22.71 Barrett's esophagus with dysplasia
          K22. ​710 Barrett's esophagus with low grade dysplasia
          K22.711 Barrett's esophagus with high grade dysplasia
          K22.719 Barrett's esophagus with dysplasia, unspecified
    K22.8 Other specified diseases of esophagus
       Hemorrhage of esophagus NOS
       Excludes2: esophageal varices (I85.-)
          Paterson-Kelly syndrome (D50.1)
    K22.9 Disease of esophagus, unspecified

## K23 Disorders of esophagus in diseases classified elsewhereK23 Disorders of esophagus in diseases classified elsewhere

    Code first underlying disease, such as:
       congenital syphilis (A50.5)
    Excludes1: late syphilis (A52.79)
       megaesophagus due to Chagas' disease (B57.31)
       tuberculosis (A18.83)

## K25 Gastric ulcerK25 Gastric ulcer

    Includes: erosion (acute) of stomach
       pylorus ulcer (peptic)
       stomach ulcer (peptic)
    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
    Excludes1: acute gastritis (K29.0-)
       peptic ulcer NOS (K27.-)
    K25.0 Acute gastric ulcer with hemorrhage
    K25.1 Acute gastric ulcer with perforation
    K25.2 Acute gastric ulcer with both hemorrhage and perforation
    K25.3 Acute gastric ulcer without hemorrhage or perforation
    K25.4 Chronic or unspecified gastric ulcer with hemorrhage
    K25.5 Chronic or unspecified gastric ulcer with perforation
    K25.6 Chronic or unspecified gastric ulcer with both hemorrhage and perforation
    K25.7 Chronic gastric ulcer without hemorrhage or perforation
    K25.9 Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation

## K26 Duodenal ulcerK26 Duodenal ulcer

    Includes: erosion (acute) of duodenum
       duodenum ulcer (peptic)
       postpyloric ulcer (peptic)
    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
    Excludes1: peptic ulcer NOS (K27.-)
    K26.0 Acute duodenal ulcer with hemorrhage
    K26.1 Acute duodenal ulcer with perforation
    K26.2 Acute duodenal ulcer with both hemorrhage and perforation
    K26.3 Acute duodenal ulcer without hemorrhage or perforation
    K26. ​4 Chronic or unspecified duodenal ulcer with hemorrhage
    K26.5 Chronic or unspecified duodenal ulcer with perforation
    K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
    K26.7 Chronic duodenal ulcer without hemorrhage or perforation
    K26.9 Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

## K27 Peptic ulcer, site unspecifiedK27 Peptic ulcer, site unspecified

    Includes: gastroduodenal ulcer NOS
       peptic ulcer NOS
    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
    Excludes1: peptic ulcer of newborn (P78.82)
    K27.0 Acute peptic ulcer, site unspecified, with hemorrhage
    K27.1 Acute peptic ulcer, site unspecified, with perforation
    K27.2 Acute peptic ulcer, site unspecified, with both hemorrhage and perforation
    K27.3 Acute peptic ulcer, site unspecified, without hemorrhage or perforation
    K27.4 Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
    K27.5 Chronic or unspecified peptic ulcer, site unspecified, with perforation
    K27.6 Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation
    K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation
    K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation

## K28 Gastrojejunal ulcerK28 Gastrojejunal ulcer

    Includes: anastomotic ulcer (peptic) or erosion
       gastrocolic ulcer (peptic) or erosion
       gastrointestinal ulcer (peptic) or erosion
       gastrojejunal ulcer (peptic) or erosion
       jejunal ulcer (peptic) or erosion
       marginal ulcer (peptic) or erosion
       stomal ulcer (peptic) or erosion
       Use additional code to identify:
          alcohol abuse and dependence (F10.-)
    Excludes1: primary ulcer of small intestine (K63.3)
    K28.0 Acute gastrojejunal ulcer with hemorrhage
    K28.1 Acute gastrojejunal ulcer with perforation
    K28.2 Acute gastrojejunal ulcer with both hemorrhage and perforation
    K28.3 Acute gastrojejunal ulcer without hemorrhage or perforation
    K28. ​4 Chronic or unspecified gastrojejunal ulcer with hemorrhage
    K28.5 Chronic or unspecified gastrojejunal ulcer with perforation
    K28.6 Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
    K28.7 Chronic gastrojejunal ulcer without hemorrhage or perforation
    K28.9 Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

## K29 Gastritis and duodenitisK29 Gastritis and duodenitis

    Excludes1: eosinophilic gastritis or gastroenteritis (K52.81)
       Zollinger-Ellison syndrome (E16.4)
    K29.0 Acute gastritis
       Use additional code to identify:
          alcohol abuse and dependence (F10.-)
       Excludes1: erosion (acute) of stomach (K25.-)
       K29.00 Acute gastritis without bleeding
       K29.01 Acute gastritis with bleeding
    K29.2 Alcoholic gastritis
       Use additional code to identify:
          alcohol abuse and dependence (F10.-)
       K29.20 Alcoholic gastritis without bleeding
       K29.21 Alcoholic gastritis with bleeding
    K29.3 Chronic superficial gastritis
       K29.30 Chronic superficial gastritis without bleeding
       K29.31 Chronic superficial gastritis with bleeding
    K29.4 Chronic atrophic gastritis
       Gastric atrophy
       K29.40 Chronic atrophic gastritis without bleeding
       K29.41 Chronic atrophic gastritis with bleeding
    K29.5 Unspecified chronic gastritis
       Chronic antral gastritis
       Chronic fundal gastritis
       K29.50 Unspecified chronic gastritis without bleeding
       K29.51 Unspecified chronic gastritis with bleeding
    K29.6 Other gastritis
       Giant hypertrophic gastritis
       Granulomatous gastritis
       Ménétrier's disease
       K29.60 Other gastritis without bleeding
       K29.61 Other gastritis with bleeding
    K29.7 Gastritis, unspecified
       K29.70 Gastritis, unspecified, without bleeding
       K29.71 Gastritis, unspecified, with bleeding
    K29.8 Duodenitis
       K29.80 Duodenitis without bleeding
       K29.81 Duodenitis with bleeding
    K29.9 Gastroduodenitis, unspecified
       K29. ​90 Gastroduodenitis, unspecified, without bleeding
       K29.91 Gastroduodenitis, unspecified, with bleeding

## K30 DyspepsiaK30 Dyspepsia

    Includes: indigestion
    Excludes1: heartburn (R12)
       nervous dyspepsia (F45.8)
       neurotic dyspepsia (F45.8)
       psychogenic dyspepsia (F45.8)

## K31 Other diseases of stomach and duodenumK31 Other diseases of stomach and duodenum

    Includes: functional disorders of stomach
    Excludes2: diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43)
       diverticulum of duodenum (K57.00-K57.11)
    K31.0 Acute dilatation of stomach
       Acute distention of stomach
    K31.1 Adult hypertrophic pyloric stenosis
       Pyloric stenosis NOS
       Excludes1: congenital or infantile pyloric stenosis (Q40.0)
    K31.2 Hourglass stricture and stenosis of stomach
       Excludes1: congenital hourglass stomach (Q40.2)
          hourglass contraction of stomach (K31.89)
    K31.3 Pylorospasm, not elsewhere classified
       Excludes1: congenital or infantile pylorospasm (Q40.0)
          neurotic pylorospasm (F45.8)
          psychogenic pylorospasm (F45.8)
    K31.4 Gastric diverticulum
       Excludes1: congenital diverticulum of stomach (Q40.2)
    K31.5 Obstruction of duodenum
       Constriction of duodenum
       Duodenal ileus (chronic)
       Stenosis of duodenum
       Stricture of duodenum
       Volvulus of duodenum
       Excludes1: congenital stenosis of duodenum (Q41.0)
    K31.6 Fistula of stomach and duodenum
       Gastrocolic fistula
       Gastrojejunocolic fistula
    K31.7 Polyp of stomach and duodenum
       Excludes1: adenomatous polyp of stomach (D13.1)
    K31.8 Other specified diseases of stomach and duodenum
       K31.81 Angiodysplasia of stomach and duodenum
          K31.811 Angiodysplasia of stomach and duodenum with bleeding
          K31.819 Angiodysplasia of stomach and duodenum without bleeding
             Angiodysplasia ​of stomach and duodenum NOS
       K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
          Excludes2: Dieulafoy lesion of intestine (K63.81)
       K31.83 Achlorhydria
       K31.89 Other diseases of stomach and duodenum
    K31.9 Disease of stomach and duodenum, unspecified

# Diseases of appendix (K35-K38)Diseases of appendix (K35-K38)
## K35 Acute appendicitisK35 Acute appendicitis

    K35.2 Acute appendicitis with generalized peritonitis
       Appendicitis (acute) with generalized (diffuse) peritonitis following rupture or perforation of appendix
       Appendicitis with peritonitis NOS
       Perforated appendix NOS
       Ruptured appendix NOS
    K35.3 Acute appendicitis with localized peritonitis
       Acute appendicitis with localized peritonitis with or without rupture or perforation of appendix
       Acute appendicitis with peritoneal abscess
    K35.8 Other and unspecified acute appendicitis
       K35.80 Unspecified acute appendicitis
          Acute appendicitis NOS
          Acute appendicitis without (localized) (generalized) peritonitis
       K35.89 Other acute appendicitis

## K36 Other appendicitisK36 Other appendicitis

    Includes: chronic appendicitis
    recurrent appendicitis

## K37 Unspecified appendicitisK37 Unspecified appendicitis

    Excludes1:-unspecified appendicitis with peritonitis (K35.2-K35.3)

## K38 Other diseases of appendixK38 Other diseases of appendix

    K38.0 Hyperplasia of appendix
    K38.1 Appendicular concretions
       Fecalith of appendix
       Stercolith of appendix
    K38.2 Diverticulum of appendix
    K38.3 Fistula of appendix
    K38.8 Other specified diseases of appendix
       Intussusception of appendix
    K38.9 Disease of appendix, unspecified

# Hernia ( ​K40-K46)

    Note: Hernia with both gangrene and obstruction is classified to hernia with gangrene.
    Includes: acquired hernia
       congenital [except diaphragmatic or hiatus] hernia
       recurrent hernia

## K40 Inguinal herniaK40 Inguinal hernia

    Includes: bubonocele
       direct inguinal hernia
       double inguinal hernia
       indirect inguinal hernia
       inguinal hernia NOS
       oblique inguinal hernia
       scrotal hernia
    K40.0 Bilateral inguinal hernia, with obstruction, without gangrene
       Inguinal hernia (bilateral) causing obstruction without gangrene
       Incarcerated inguinal hernia (bilateral) without gangrene
       Irreducible inguinal hernia (bilateral) without gangrene
       Strangulated inguinal hernia (bilateral) without gangrene
       K40.00 Bilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
          Bilateral inguinal hernia, with obstruction, without gangrene NOS
       K40.01 Bilateral inguinal hernia, with obstruction, without gangrene, recurrent
    K40.1 Bilateral inguinal hernia, with gangrene
       K40.10 Bilateral inguinal hernia, with gangrene, not specified as recurrent
          Bilateral inguinal hernia, with gangrene NOS
       K40.11 Bilateral inguinal hernia, with gangrene, recurrent
    K40.2 Bilateral inguinal hernia, without obstruction or gangrene
       K40.20 Bilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
          Bilateral inguinal hernia NOS
       K40.21 Bilateral inguinal hernia, without obstruction or gangrene, recurrent
    K40.3 Unilateral inguinal hernia, with obstruction, without gangrene
       Inguinal hernia (unilateral) causing obstruction without gangrene
       Incarcerated inguinal hernia (unilateral) without gangrene
       Irreducible inguinal hernia (unilateral) without gangrene
       Strangulated inguinal hernia (unilateral) without gangrene
       K40.30 Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
          Inguinal hernia, with obstruction NOS
          Unilateral inguinal hernia, with obstruction, without gangrene NOS
       K40. ​31 Unilateral inguinal hernia, with obstruction, without gangrene, recurrent
    K40.4 Unilateral inguinal hernia, with gangrene
       K40.40 Unilateral inguinal hernia, with gangrene, not specified as recurrent
          Inguinal hernia with gangrene NOS
          Unilateral inguinal hernia with gangrene NOS
       K40.41 Unilateral inguinal hernia, with gangrene, recurrent
    K40.9 Unilateral inguinal hernia, without obstruction or gangrene
       K40.90 Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
          Inguinal hernia NOS
          Unilateral inguinal hernia NOS
       K40.91 Unilateral inguinal hernia, without obstruction or gangrene, recurrent

## K41 Femoral herniaK41 Femoral hernia

    K41.0 Bilateral femoral hernia, with obstruction, without gangrene
       Femoral hernia (bilateral) causing obstruction, without gangrene
       Incarcerated femoral hernia (bilateral), without gangrene
       Irreducible femoral hernia (bilateral), without gangrene
       Strangulated femoral hernia (bilateral), without gangrene
       K41.00 Bilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent
          Bilateral femoral hernia, with obstruction, without gangrene NOS
       K41.01 Bilateral femoral hernia, with obstruction, without gangrene, recurrent
    K41.1 Bilateral femoral hernia, with gangrene
       K41.10 Bilateral femoral hernia, with gangrene, not specified as recurrent
          Bilateral femoral hernia, with gangrene NOS
       K41.11 Bilateral femoral hernia, with gangrene, recurrent
    K41.2 Bilateral femoral hernia, without obstruction or gangrene
       K41.20 Bilateral femoral hernia, without obstruction or gangrene, not specified as recurrent
          Bilateral femoral hernia NOS
       K41.21 Bilateral femoral hernia, without obstruction or gangrene, recurrent
    K41.3 Unilateral femoral hernia, with obstruction, without gangrene
       Femoral hernia (unilateral) causing obstruction, without gangrene
       Incarcerated femoral hernia (unilateral), without gangrene
       Irreducible femoral hernia (unilateral), without gangrene
       Strangulated femoral hernia (unilateral), without gangrene
       K41.30 Unilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent
          Femoral hernia, with obstruction NOS
          Unilateral ​femoral hernia, with obstruction NOS
       K41.31 Unilateral femoral hernia, with obstruction, without gangrene, recurrent
    K41.4 Unilateral femoral hernia, with gangrene
       K41.40 Unilateral femoral hernia, with gangrene, not specified as recurrent
          Femoral hernia, with gangrene NOS
          Unilateral femoral hernia, with gangrene NOS
       K41.41 Unilateral femoral hernia, with gangrene, recurrent
    K41.9 Unilateral femoral hernia, without obstruction or gangrene
       K41.90 Unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent
          Femoral hernia NOS
          Unilateral femoral hernia NOS
       K41.91 Unilateral femoral hernia, without obstruction or gangrene, recurrent

## K42 Umbilical herniaK42 Umbilical hernia

    Includes: paraumbilical hernia
    Excludes1: omphalocele (Q79.2)
    K42.0 Umbilical hernia with obstruction, without gangrene
       Umbilical hernia causing obstruction, without gangrene
       Incarcerated umbilical hernia, without gangrene
       Irreducible umbilical hernia, without gangrene
       Strangulated umbilical hernia, without gangrene
    K42.1 Umbilical hernia with gangrene
       Gangrenous umbilical hernia
    K42.9 Umbilical hernia without obstruction or gangrene
       Umbilical hernia NOS

## K43 Ventral herniaK43 Ventral hernia

    K43.0 Ventral hernia with obstruction, without gangrene
       Ventral hernia causing obstruction, without gangrene
       Incarcerated ventral hernia, without gangrene
       Irreducible ventral hernia, without gangrene
       Strangulated ventral hernia, without gangrene
       K43.00 Ventral hernia, unspecified, with obstruction, without gangrene
       K43.01 Incisional hernia, with obstruction, without gangrene
       K43.09 Other ventral hernia, with obstruction, without gangrene
          Epigastric hernia
    K43.1 Ventral hernia with gangrene
       Gangrenous ventral hernia
       K43.10 Ventral hernia, unspecified, with gangrene
       K43.11 Incisional hernia, with gangrene
       K43.19 Other ventral hernia, with gangrene
          Epigastric ​hernia
    K43.9 Ventral hernia without obstruction or gangrene
       K43.90 Ventral hernia, unspecified, without obstruction or gangrene
          Ventral hernia NOS
       K43.91 Incisional hernia, without obstruction or gangrene
       K43.99 Other ventral hernia, without obstruction or gangrene
          Epigastric hernia

## K44 Diaphragmatic herniaK44 Diaphragmatic hernia

    Includes: hiatus hernia (esophageal) (sliding)
       paraesophageal hernia
    Excludes1: congenital diaphragmatic hernia (Q79.0)
       congenital hiatus hernia (Q40.1)
    K44.0 Diaphragmatic hernia with obstruction, without gangrene
       Diaphragmatic hernia causing obstruction
       Incarcerated diaphragmatic hernia
       Irreducible diaphragmatic hernia
       Strangulated diaphragmatic hernia
    K44.1 Diaphragmatic hernia with gangrene
       Gangrenous diaphragmatic hernia
    K44.9 Diaphragmatic hernia without obstruction or gangrene
       Diaphragmatic hernia NOS

## K45 Other abdominal herniaK45 Other abdominal hernia

    Includes: abdominal hernia, specified site NEC
       lumbar hernia
       obturator hernia
       pudendal hernia
       retroperitoneal hernia
       sciatic hernia
    K45.0 Other specified abdominal hernia with obstruction, without gangrene
       Other specified abdominal hernia causing obstruction
       Other specified incarcerated abdominal hernia
       Other specified irreducible abdominal hernia
       Other specified strangulated abdominal hernia
    Excludes2: hernia due to adhesions with obstruction (K56.5)
    K45.1 Other specified abdominal hernia with gangrene
       Any condition listed under K45 specified as gangrenous
    K45.8 Other specified abdominal hernia without obstruction or gangrene

## K46 Unspecified abdominal herniaK46 Unspecified abdominal hernia

    Includes: enterocele
       epiplocele
       hernia NOS
       interstitial ​hernia
       intestinal hernia
       intra-abdominal hernia
    Excludes1: vaginal enterocele (N81.5)
    K46.0 Unspecified abdominal hernia with obstruction, without gangrene
       Unspecified abdominal hernia causing obstruction
       Unspecified incarcerated abdominal hernia
       Unspecified irreducible abdominal hernia
       Unspecified strangulated abdominal hernia
    K46.1 Unspecified abdominal hernia with gangrene
       Any condition listed under K46 specified as gangrenous
    K46.9 Unspecified abdominal hernia without obstruction or gangrene
       Abdominal hernia NOS

# Noninfective enteritis and colitis (K50-K52)Noninfective enteritis and colitis (K50-K52)

       Includes: noninfective inflammatory bowel disease
       Excludes1: irritable bowel syndrome (K58.-)
          megacolon (K59.3)

## K50 Crohn's disease [regional enteritis]K50 Crohn's disease [regional enteritis]

    Includes: granulomatous enteritis
    Excludes1: ulcerative colitis (K51.-)
    Use additional code to identify manifestations, such as:
       pyoderma gangrenosum (L88)
    K50.0 Crohn's disease of small intestine
       Crohn's disease [regional enteritis] of duodenum
       Crohn's disease [regional enteritis] of ileum
       Crohn's disease [regional enteritis] of jejunum
       Regional ileitis
       Terminal ileitis
       Excludes1: Crohn's disease of both small and large intestine (K50.8-)
       K50.00 Crohn's disease of small intestine without complications
       K50.01 Crohn's disease of small intestine with complications
          K50.011 Crohn's disease of small intestine with rectal bleeding
          K50.012 Crohn's disease of small intestine with intestinal obstruction
          K50.013 Crohn's disease of small intestine with fistula
          K50.014 Crohn's disease of small intestine with abscess
          K50.018 Crohn's disease of small intestine with other complication
          K50. ​019 Crohn's disease of small intestine with unspecified complications
    K50.1 Crohn's disease of large intestine
       Crohn's disease [regional enteritis] of colon
       Crohn's disease [regional enteritis] of large bowel
       Crohn's disease [regional enteritis] of rectum
       Granulomatous colitis
       Regional colitis
       Excludes1: Crohn's disease of both small and large intestine (K50.8)
       K50.10 Crohn's disease of large intestine without complications
       K50.11 Crohn's disease of large intestine with complications
          K50.111 Crohn's disease of large intestine with rectal bleeding
          K50.112 Crohn's disease of large intestine with intestinal obstruction
          K50.113 Crohn's disease of large intestine with fistula
          K50.114 Crohn's disease of large intestine with abscess
          K50.118 Crohn's disease of large intestine with other complication
          K50.119 Crohn's disease of large intestine with unspecified complications
    K50.8 Crohn's disease of both small and large intestine
       K50.80 Crohn's disease of both small and large intestine without complications
       K50.81 Crohn's disease of both small and large intestine with complications
          K50.811 Crohn's disease of both small and large intestine with rectal bleeding
          K50.812 Crohn's disease of both small and large intestine with intestinal obstruction
          K50.813 Crohn's disease of both small and large intestine with fistula
          K50.814 Crohn's disease of both small and large intestine with abscess
          K50.818 Crohn's disease of both small and large intestine with other complication
          K50.819 Crohn's disease of both small and large intestine with unspecified complications
    K50.9 Crohn's disease, unspecified
       K50.90 Crohn's disease, unspecified, without complications
          Crohn's disease NOS
          Regional enteritis NOS
       K50. ​91 Crohn's disease, unspecified, with complications
          K50.911 Crohn's disease, unspecified, with rectal bleeding
          K50.912 Crohn's disease, unspecified, with intestinal obstruction
          K50.913 Crohn's disease, unspecified, with fistula
          K50.914 Crohn's disease, unspecified, with abscess
          K50.918 Crohn's disease, unspecified, with other complication
          K50.919 Crohn's disease, unspecified, with unspecified complications

## K51 Ulcerative colitisK51 Ulcerative colitis

    Use additional code to identify manifestations, such as:
       pyoderma gangrenosum (L88)
    Excludes1: Crohn?s disease [regional enteritis] (K50.-)
    K51.0 Ulcerative (chronic) pancolitis
       Backwash ileitis
       K51.00 Ulcerative (chronic) pancolitis without complications
          Ulcerative (chronic) panocolitis NOS
       K51.01 Ulcerative (chronic) panocolitis with complications
          K51.011 Ulcerative (chronic) pancolitis with rectal bleeding
          K51.012 Ulcerative (chronic) pancolitis with intestinal obstruction
          K51.013 Ulcerative (chronic) pancolitis with fistula
          K51.014 Ulcerative (chronic) panocolitis with abscess
          K51.018 Ulcerative (chronic) pancolitis with other complication
          K51.019 Ulcerative (chronic) panocolitis with unspecified complications
    K51.2 Ulcerative (chronic) proctitis
       K51.20 Ulcerative (chronic) proctitis without complications
          Ulcerative (chronic) proctitis NOS
       K51.21 Ulcerative (chronic) proctitis with complications
          K51.211 Ulcerative (chronic) proctitis with rectal bleeding
          K51.212 Ulcerative (chronic) proctitis with intestinal obstruction
          K51.213 Ulcerative (chronic) proctitis with fistula
          K51.214 Ulcerative (chronic) proctitis with abscess
          K51.218 Ulcerative (chronic) proctitis with other complication
          K51. ​219 Ulcerative (chronic) proctitis with unspecified complications
    K51.3 Ulcerative (chronic) rectosigmoiditis
       K51.30 Ulcerative (chronic) rectosigmoiditis without complications
          Ulcerative (chronic) rectosigmoiditis NOS
       K51.31 Ulcerative (chronic) rectosigmoiditis with complications
          K51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleeding
          K51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
          K51.313 Ulcerative (chronic) rectosigmoiditis with fistula
          K51.314 Ulcerative (chronic) rectosigmoiditis with abscess
          K51.318 Ulcerative (chronic) rectosigmoiditis with other complication
          K51.319 Ulcerative (chronic) rectosigmoiditis with unspecified complications
    K51.4 Inflammatory polyps of colon
       Excludes1: adenomatous polyp of colon (D12.6)
          polyposis of colon (D12.6)
          polyps of colon NOS (K63.5)
       K51.40 Inflammatory polyps of colon without complications
          Inflammatory polyps of colon NOS
       K51.41 Inflammatory polyps of colon with complications
          K51.411 Inflammatory polyps of colon with rectal bleeding
          K51.412 Inflammatory polyps of colon with intestinal obstruction
          K51.413 Inflammatory polyps of colon with fistula
          K51.414 Inflammatory polyps of colon with abscess
          K51.418 Inflammatory polyps of colon with other complication
          K51.419 Inflammatory polyps of colon with unspecified complications
    K51.5 Left sided colitis
       Left hemicolitis
       K51.50 Left sided colitis without complications
          Left sided colitis NOS
       K51.51 Left sided colitis with complications
          K51.511 Left sided colitis with rectal bleeding
          K51.512 Left sided colitis with intestinal obstruction
          K51.513 Left sided colitis with fistula
          K51. ​514 Left sided colitis with abscess
          K51.518 Left sided colitis with other complication
          K51.519 Left sided colitis with unspecified complications
    K51.8 Other ulcerative colitis
       K51.80 Other ulcerative colitis without complications
       K51.81 Other ulcerative colitis with complications
          K51.811 Other ulcerative colitis with rectal bleeding
          K51.812 Other ulcerative colitis with intestinal obstruction
          K51.813 Other ulcerative colitis with fistula
          K51.814 Other ulcerative colitis with abscess
          K51.818 Other ulcerative colitis with other complication
          K51.819 Other ulcerative colitis with unspecified complications
    K51.9 Ulcerative colitis, unspecified
       K51.90 Ulcerative colitis, unspecified, without complications
       K51.91 Ulcerative colitis, unspecified, with complications
          K51.911 Ulcerative colitis, unspecified with rectal bleeding
          K51.912 Ulcerative colitis, unspecified with intestinal obstruction
          K51.913 Ulcerative colitis, unspecified with fistula
          K51.914 Ulcerative colitis, unspecified with abscess
          K51.918 Ulcerative colitis, unspecified with other complication
          K51.919 Ulcerative colitis, unspecified with unspecified complications

## K52 Other and unspecified noninfective gastroenteritis and colitisK52 Other and unspecified noninfective gastroenteritis and colitis

    K52.0 Gastroenteritis and colitis due to radiation
    K52.1 Toxic gastroenteritis and colitis
       Code first (T51-T65) to identify toxic agent.
    K52.2 Allergic and dietetic gastroenteritis and colitis
       Food hypersensitivity gastroenteritis or colitis
       Use additional code to identify type of food allergy (Z91.01-, Z91.02-)
    K52.8 Other specified noninfective gastroenteritis and colitis
       K52.81 Eosinophilic gastritis or gastroenteritis
          Eosinophilic enteritis
          Excludes1: eosinophilic esophagitis (K20.0)
       K52.82 Eosinophilic colitis
       K52.89 Other specified noninfective gastroenteritis and colitis
          Collagenous colitis
          Lymphocytic ​colitis
          Microscopic colitis (collagenous or lymphocytic)
    K52.9 Noninfective gastroenteritis and colitis, unspecified
       Colitis NOS
       Enteritis NOS
       Gastroenteritis NOS
       Ileitis NOS
       Jejunitis NOS
       Sigmoiditis NOS
       Excludes1: diarrhea NOS (R19.7)
          functional diarrhea (K59.1)
          infectious gastroenteritis and colitis NOS (A09)
          neonatal diarrhea (noninfective) (P78.3)
          psychogenic diarrhea (F45.8)

# Other diseases of intestines (K55-K63)Other diseases of intestines (K55-K63)
## K55 Vascular disorders of intestineK55 Vascular disorders of intestine

    Excludes1: necrotizing enterocolitis of newborn (P77.-)
    K55.0 Acute vascular disorders of intestine
       Acute fulminant ischemic colitis
       Acute intestinal infarction
       Acute small intestine ischemia
       Infarction of appendices epiploicae
       Mesenteric (artery) (vein) embolism
       Mesenteric (artery) (vein) infarction
       Mesenteric (artery) (vein) thrombosis
       Necrosis of intestine
       Subacute ischemic colitis
    K55.1 Chronic vascular disorders of intestine
       Chronic ischemic colitis
       Chronic ischemic enteritis
       Chronic ischemic enterocolitis
       Ischemic stricture of intestine
       Mesenteric atherosclerosis
       Mesenteric vascular insufficiency
    K55.2 Angiodysplasia of colon
       K55.20 Angiodysplasia of colon without hemorrhage
       K55.21 Angiodysplasia of colon with hemorrhage
    K55.8 Other vascular disorders of intestine
    K55.9 Vascular disorder of intestine, unspecified
       Ischemic colitis
       Ischemic enteritis
       Ischemic enterocolitis

## K56 Paralytic ileus and intestinal obstruction without herniaK56 Paralytic ileus and intestinal obstruction without hernia

    Excludes1: ​congenital stricture or stenosis of intestine (Q41-Q42)
       cystic fibrosis with meconium ileus (E84.11)
       ischemic stricture of intestine (K55.1)
       meconium ileus NOS (P76.0)
       neonatal intestinal obstructions classifiable to P76.-
       obstruction of duodenum (K31.5)
       postprocedural intestinal obstruction (K91.3)
       stenosis of anus or rectum (K62.4)
       intestinal obstruction with hernia (K40-K46)
    K56.0 Paralytic ileus
       Paralysis of bowel
       Paralysis of colon
       Paralysis of intestine
       Excludes1: gallstone ileus (K56.3)
          ileus NOS (K56.7)
          obstructive ileus NOS (K56.69)
    K56.1 Intussusception
       Intussusception or invagination of bowel
       Intussusception or invagination of colon
       Intussusception or invagination of intestine
       Intussusception or invagination of rectum
       Excludes2: intussusception of appendix (K38.8)
    K56.2 Volvulus
       Strangulation of colon or intestine
       Torsion of colon or intestine
       Twist of colon or intestine
       Excludes2: volvulus of duodenum (K31.5)
    K56.3 Gallstone ileus
       Obstruction of intestine by gallstone
    K56.4 Other impaction of intestine
       Enterolith
       Fecal impaction
       Impaction (of) colon
    K56.5 Intestinal adhesions [bands] with obstruction (postprocedural) (postinfection)
       Abdominal hernia due to adhesions with obstruction
       Peritoneal adhesions [bands] with intestinal obstruction (postprocedural) (postinfection)
    K56.6 Other and unspecified intestinal obstruction
       K56.60 Unspecified intestinal obstruction
          Intestinal obstruction NOS
          Excludes1: intestinal obstruction due to specified condition-code to condition
       K56.69 Other intestinal obstruction
          Enterostenosis NOS
          Obstructive ileus NOS
          Occlusion ​of colon or intestine NOS
          Stenosis of colon or intestine NOS
          Stricture of colon or intestine NOS
          Excludes1: intestinal obstruction due to specified condition-code to condition
    K56.7 Ileus, unspecified
       Excludes1: obstructive ileus (K56.69)

## K57 Diverticular disease of intestineK57 Diverticular disease of intestine

    Excludes1: congenital diverticulum of intestine (Q43.8)
       Meckel's diverticulum (Q43.0)
    Excludes2: diverticulum of appendix (K38.2)
    K57.0 Diverticulitis of small intestine with perforation and abscess
       Diverticulitis of small intestine with peritonitis
       Excludes1: diverticulitis of both small and large intestine with perforation and abscess (K57.4-)
       K57.00 Diverticulitis of small intestine with perforation and abscess without bleeding
       K57.01 Diverticulitis of small intestine with perforation and abscess with bleeding
    K57.1 Diverticular disease of small intestine without perforation or abscess
       Excludes1: diverticular disease of both small and large intestine without perforation or abscess (K57.5-)
       K57.10 Diverticulosis of small intestine without perforation or abscess without bleeding
          Diverticular disease of small intestine NOS
       K57.11 Diverticulosis of small intestine without perforation or abscess with bleeding
       K57.12 Diverticulitis of small intestine without perforation or abscess without bleeding
       K57.13 Diverticulitis of small intestine without perforation or abscess with bleeding
    K57.2 Diverticulitis of large intestine with perforation and abscess
       Diverticulitis of colon with peritonitis
       Excludes1: diverticulitis of both small and large intestine with perforation and abscess (K57.4-)
       K57.20 Diverticulitis of large intestine with perforation and abscess without bleeding
       K57.21 Diverticulitis of large intestine with perforation and abscess with bleeding
    K57.3 Diverticular disease of large intestine without perforation or abscess
       Excludes1: diverticular disease of both small and large intestine without perforation or abscess (K57.5-)
       K57.30 Diverticulosis of large intestine without perforation or abscess without bleeding
          Diverticular ​disease of colon NOS
       K57.31 Diverticulosis of large intestine without perforation or abscess with bleeding
       K57.32 Diverticulitis of large intestine without perforation or abscess without bleeding
       K57.33 Diverticulitis of large intestine without perforation or abscess with bleeding
    K57.4 Diverticulitis of both small and large intestine with perforation and abscess
       Diverticulitis of both small and large intestine with peritonitis
       K57.40 Diverticulitis of both small and large intestine with perforation and abscess without bleeding
       K57.41 Diverticulitis of both small and large intestine with perforation and abscess with bleeding
    K57.5 Diverticular disease of both small and large intestine without perforation or abscess
       K57.50 Diverticulosis of both small and large intestine without perforation or abscess without bleeding
          Diverticular disease of both small and large intestine NOS
       K57.51 Diverticulosis of both small and large intestine without perforation or abscess with bleeding
       K57.52 Diverticulitis of both small and large intestine without perforation or abscess without bleeding
       K57.53 Diverticulitis of both small and large intestine without perforation or abscess with bleeding
    K57.8 Diverticulitis of intestine, part unspecified, with perforation and abscess
       Diverticulitis of intestine NOS with peritonitis
       K57.80 Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
       K57.81 Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding
    K57.9 Diverticular disease of intestine, part unspecified, without perforation or abscess
       K57.90 Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding
          Diverticular disease of intestine NOS
       K57.91 Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding
       K57.92 Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding
       K57.93 Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding

## K58 Irritable bowel syndromeK58 Irritable bowel syndrome

    Includes: irritable colon
       spastic colon
    K58. ​0 Irritable bowel syndrome with diarrhea
    K58.9 Irritable bowel syndrome without diarrhea
       Irritable bowel syndrome NOS

## K59 Other functional intestinal disordersK59 Other functional intestinal disorders

    Excludes1: change in bowel habit NOS (R19.4)
       intestinal malabsorption (K90.-)
       psychogenic intestinal disorders (F45.8)
    Excludes2: functional disorders of stomach (K31.-)
    K59.0 Constipation
       K59.00 Constipation, unspecified
       K59.01 Slow transit constipation
       K59.02 Outlet dysfunction constipation
       K59.09 Other constipation
    K59.1 Functional diarrhea
       Excludes1: diarrhea NOS (R19.7)
          irritable bowel syndrome with diarrhea (K58.0)
    K59.2 Neurogenic bowel, not elsewhere classified
    K59.3 Megacolon, not elsewhere classified
       Dilatation of colon
       Toxic megacolon
       Code first (T51-T65) to identify toxic agent
       Excludes1: congenital megacolon (aganglionic) (Q43.1)
          Hirschsprung's disease (Q43.1)
          megacolon in Chagas' disease (B57.32)
    K59.4 Anal spasm
       Proctalgia fugax
    K59.8 Other specified functional intestinal disorders
       Atony of colon
       Pseudo-obstruction (acute) (chronic) of intestine
    K59.9 Functional intestinal disorder, unspecified

## K60 Fissure and fistula of anal and rectal regionsK60 Fissure and fistula of anal and rectal regions

    Excludes1: fissure and fistula of anal and rectal regions with abscess or cellulitis (K61.-)
    Excludes2: anal sphincter tear (healed) (nontraumatic) (old) (K62.81)
    K60.0 Acute anal fissure
    K60.1 Chronic anal fissure
    K60.2 Anal fissure, unspecified
    K60.3 Anal fistula
    K60.4 Rectal fistula
       Fistula of rectum to skin
       Excludes1: rectovaginal fistula (N82.3)
          vesicorectal fistual (N32.1)
    K60.5 Anorectal fistula

## K61 Abscess of anal and rectal regionsK61 Abscess of anal and rectal regions

    Includes: ​abscess of anal and rectal regions
       cellulitis of anal and rectal regions
    K61.0 Anal abscess
       Perianal abscess
       Excludes1: intrasphincteric abscess (K61.4)
    K61.1 Rectal abscess
       Perirectal abscess
       Excludes1: ischiorectal abscess (K61.3)
    K61.2 Anorectal abscess
    K61.3 Ischiorectal abscess
       Abscess of ischiorectal fossa
    K61.4 Intrasphincteric abscess

## K62 Other diseases of anus and rectumK62 Other diseases of anus and rectum

    Includes: anal canal
    Excludes2: colostomy and enterostomy malfunction (K91.4-)
       fecal incontinence (R15)
       hemorrhoids (I84.-)
    K62.0 Anal polyp
    K62.1 Rectal polyp
       Excludes1: adenomatous polyp (D12.8)
    K62.2 Anal prolapse
       Prolapse of anal canal
    K62.3 Rectal prolapse
       Prolapse of rectal mucosa
    K62.4 Stenosis of anus and rectum
       Stricture of anus (sphincter)
    K62.5 Hemorrhage of anus and rectum
       Excludes1: gastrointestinal bleeding NOS (K92.2)
          melena (K92.1)
          neonatal rectal hemorrhage (P54.2)
    K62.6 Ulcer of anus and rectum
       Solitary ulcer of anus and rectum
       Stercoral ulcer of anus and rectum
       Excludes1: fissure and fistula of anus and rectum (K60.-)
          ulcerative colitis (K51.-)
    K62.7 Radiation proctitis
       Use additional code to identify the type of radiation (W90.-)
    K62.8 Other specified diseases of anus and rectum
       Excludes2: ulcerative proctitis (K51.2)
       K62.81 Anal sphincter tear (healed) (nontraumatic) (old)
          Tear of anus, nontraumatic
          Use additional code for any associated fecal incontinence (R15)
          Excludes2: anal fissure (K60.-)
             anal sphincter tear (healed) (old) complicating delivery (O34.7-)
             traumatic ​tear of anal sphincter (S31.831)
       K62.82 Dysplasia of anus
          Anal intraepithelial neoplasia I and II (AIN I and II) (histologically confirmed)
          Dysplasia of anus NOS
          Mild and moderate dysplasia of anus (histologically confirmed)
          Excludes1: abnormal results from anal cytologic examination without histologic confirmation (R85.61-)
             anal intraepithelial neoplasia III (D01.3)
             carcinoma in situ of anus (D01.3)
             HGSIL of anus (R85.613)
             severe dysplasia of anus (D01.3)
       K62.89 Other specified diseases of anus and rectum
          Proctitis NOS
    K62.9 Disease of anus and rectum, unspecified

## K63 Other diseases of intestineK63 Other diseases of intestine

    K63.0 Abscess of intestine
       Excludes1: abscess of intestine with Crohn's disease (K50.04, K50.14, K50.84, K50.94,)
          abscess of intestine with diverticular disease (K57.0, K57.2, K57.4, K57.8)
          abscess of intestine with ulcerative colitis (K51.04, K51.14, K51.24, K51.34, K51.44, K51.54, K51.84, K51.94)
       Excludes2: abscess of anal and rectal regions (K61.-)
          abscess of appendix (K35.2)
    K63.1 Perforation of intestine (nontraumatic)
       Perforation (nontraumatic) of rectum
       Excludes1: perforation (nontraumatic) of duodenum (K26.-)
          perforation (nontraumatic) of intestine with diverticular disease (K57.0, K57.2, K57.4, K57.8)
       Excludes2: perforation (nontraumatic) of appendix (K35.2, K35.3)
    K63.2 Fistula of intestine
       Excludes1: fistula of duodenum (K31.6)
          fistula of intestine with Crohn?s disease (K50.03, K50.13, K50.83, K50.93,)
          fistula of intestine with ulcerative colitis (K51.03, K51.13, K51.23, K51.33, K51.43, K51.53, K51.83, K51.93)
       Excludes2: fistula of anal and rectal regions (K60.-)
          fistula of appendix (K38.3)
          intestinal-genital fistula, female (N82.2-N82.4)
          vesicointestinal fistula (N32.1)
    K63.3 Ulcer of intestine
       Primary ulcer of small intestine
       Excludes1: duodenal ulcer (K26.-)
          gastrointestinal ​ulcer (K28.-)
          gastrojejunal ulcer (K28.-)
          jejunal ulcer (K28.-)
          peptic ulcer, site unspecified (K27.-)
          ulcer of intestine with perforation (K63.1)
          ulcer of anus or rectum (K62.6)
          ulcerative colitis (K51.-)
    K63.4 Enteroptosis
    K63.5 Polyp of colon
       Excludes1: adenomatous polyp of colon (D12.6)
          inflammatory polyp of colon (K51.4-)
          polyposis of colon (D12.6)
    K63.8 Other specified diseases of intestine
       K63.81 Dieulafoy lesion of intestine
          Excludes2: Dieulafoy lesion of stomach and duodenum (K31.82)
       K63.89 Other specified diseases of intestine
    K63.9 Disease of intestine, unspecified

# Diseases of peritoneum and retroperitoneum (K65-K68)Diseases of peritoneum and retroperitoneum (K65-K68)
## K65 PeritonitisK65 Peritonitis

    Use additional code (B95-B97), to identify infectious agent
    Excludes1: acute appendicitis with generalized peritonitis (K35.2)
       aseptic peritonitis (T81.6)
       benign paroxysmal peritonitis (E85.0)
       chemical peritonitis (T81.6)
       diverticulitis of both small and large intestine with peritonitis (K57.4-)
       diverticulitis of colon with peritonitis (K57.2-)
       diverticulitis of intestine, NOS, with peritonitis (K57.8-)
       diverticulitis of small intestine with peritonitis (K57.0-)
       gonococcal peritonitis (A54.85)
       neonatal peritonitis (P78.0-P78.1)
       pelvic peritonitis, female (N73.3-N73.5)
       periodic familial peritonitis (E85.0)
       peritonitis due to talc or other foreign substance (T81.6)
       peritonitis in chlamydia (A74.81)
       peritonitis in diphtheria (A36.89)
       peritonitis in syphilis (late) (A52.74)
       peritonitis in tuberculosis (A18.31)
       peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0)
       peritonitis with or following appendicitis (K35.-)
       peritonitis with or following diverticular disease of intestine (K57.-)
       puerperal peritonitis (O85)
       retroperitoneal ​infections (K68.-)
    K65.0 Generalized (acute) peritonitis
       Pelvic peritonitis (acute), male
       Subphrenic peritonitis (acute)
       Suppurative peritonitis (acute)
    K65.1 Peritoneal abscess
       Abdominopelvic abscess
       Abscess (of) omentum
       Abscess (of) peritoneum
       Mesenteric abscess
       Retrocecal abscess
       Subdiaphragmatic abscess
       Subhepatic abscess
       Subphrenic abscess
    K65.2 Spontaneous bacterial peritonitis
       Excludes1: bacterial peritonitis NOS K65.9
    K65.3 Choleperitonitis
       Peritonitis due to bile
    K65.4 Sclerosing mesenteritis
       Fat necrosis of peritoneum
       (Idiopathic) sclerosing mesenteric fibrosis
       Mesenteric lipodystrophy
       Mesenteric panniculitis
       Retractile mesenteritis
    K65.8 Other peritonitis
       Chronic proliferative peritonitis
       Peritonitis due to urine
    K65.9 Peritonitis, unspecified
       Bacterial peritonitis NOS

## K66 Other disorders of peritoneumK66 Other disorders of peritoneum

    Excludes2: ascites (R18.-)
       peritoneal effusion (chronic) (R18.8)
    K66.0 Peritoneal adhesions (postprocedural) (postinfection)
       Adhesions (of) abdominal (wall)
       Adhesions (of) diaphragm
       Adhesions (of) intestine
       Adhesions (of) male pelvis
       Adhesions (of) omentum
       Adhesions (of) stomach
       Adhesive bands
       Mesenteric adhesions
       Excludes1: female pelvic adhesions [bands] (N73.6)
          peritoneal adhesions with intestinal obstruction (K56.5)
    K66.1 Hemoperitoneum
       Excludes1: traumatic hemoperitoneum (S36.8-)
    K66.8 Other specified disorders of peritoneum
    K66. ​9 Disorder of peritoneum, unspecified

## K67 Disorders of peritoneum in infectious diseases classified elsewhereK67 Disorders of peritoneum in infectious diseases classified elsewhere

    Code first underlying disease, such as :
       congenital syphilis (A50.0)
       helminthiasis (B65.0 - B83.9)
    Excludes1: peritonitis in chlamydia (A74.81)
       peritonitis in diphtheria (A36.89)
       peritonitis in gonococcal (A54.85)
       peritonitis in syphilis (late) (A52.74)
       peritonitis in tuberculosis (A18.31)

## K68 Disorders of retroperitoneumK68 Disorders of retroperitoneum

    K68.1 Retroperitoneal abscess
       K68.11 Postprocedural retroperitoneal abscess
       K68.12 Psoas muscle abscess
       K68.19 Other retroperitoneal abscess
    K68.9 Other disorders of retroperitoneum

# Diseases of liver (K70-K77)Diseases of liver (K70-K77)

    Excludes1: jaundice NOS (R17)
    Excludes2: hemochromatosis (E83.1)
       Reye's syndrome (G93.7)
       viral hepatitis (B15-B19)
       Wilson's disease (E83.0)

## K70 Alcoholic liver diseaseK70 Alcoholic liver disease

    Use additional code to identify:
       alcohol abuse and dependence (F10.-)
    K70.0 Alcoholic fatty liver
    K70.1 Alcoholic hepatitis
       K70.10 Alcoholic hepatitis without ascites
       K70.11 Alcoholic hepatitis with ascites
    K70.2 Alcoholic fibrosis and sclerosis of liver
    K70.3 Alcoholic cirrhosis of liver
       Alcoholic cirrhosis NOS
       K70.30 Alcoholic cirrhosis of liver without ascites
       K70.31 Alcoholic cirrhosis of liver with ascites
    K70.4 Alcoholic hepatic failure
       Acute alcoholic hepatic failure
       Alcoholic hepatic failure NOS
       Chronic alcoholic hepatic failure
       Subacute alcoholic hepatic failure
       K70.40 Alcoholic hepatic failure without coma
       K70.41 Alcoholic hepatic failure with coma
    K70. ​9 Alcoholic liver disease, unspecified

## K71 Toxic liver diseaseK71 Toxic liver disease

    Includes: drug-induced idiosyncratic (unpredictable) liver disease
       drug-induced toxic (predictable) liver disease
    Code first (T36-T65) to identify drug or toxic agent
    Excludes2: alcoholic liver disease (K70.-)
       Budd-Chiari syndrome (I82.0)
    K71.0 Toxic liver disease with cholestasis
       Cholestasis with hepatocyte injury
       "Pure" cholestasis
    K71.1 Toxic liver disease with hepatic necrosis
       Hepatic failure (acute) (chronic) due to drugs
       K71.10 Toxic liver disease with hepatic necrosis, without coma
       K71.11 Toxic liver disease with hepatic necrosis, with coma
    K71.2 Toxic liver disease with acute hepatitis
    K71.3 Toxic liver disease with chronic persistent hepatitis
    K71.4 Toxic liver disease with chronic lobular hepatitis
    K71.5 Toxic liver disease with chronic active hepatitis
       Toxic liver disease with lupoid hepatitis
       K71.50 Toxic liver disease with chronic active hepatitis without ascites
       K71.51 Toxic liver disease with chronic active hepatitis with ascites
    K71.6 Toxic liver disease with hepatitis, not elsewhere classified
    K71.7 Toxic liver disease with fibrosis and cirrhosis of liver
    K71.8 Toxic liver disease with other disorders of liver
       Toxic liver disease with focal nodular hyperplasia
       Toxic liver disease with hepatic granulomas
       Toxic liver disease with peliosis hepatis
       Toxic liver disease with veno-occlusive disease of liver
    K71.9 Toxic liver disease, unspecified

## K72 Hepatic failure, not elsewhere classifiedK72 Hepatic failure, not elsewhere classified

    Includes: acute hepatitis NEC, with hepatic failure
       fulminant hepatitis NEC, with hepatic failure
       hepatic encephalopathy NOS
       liver (cell) necrosis with hepatic failure
       malignant hepatitis NEC, with hepatic failure
       yellow liver atrophy or dystrophy
    Excludes1: alcoholic hepatic failure (K70.4)
       hepatic failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
       hepatic failure complicating pregnancy, childbirth and the puerperium (O26.6)
       hepatic failure with toxic liver disease (K71.1-)
       icterus ​of newborn (P55-P59)
       postprocedural hepatic failure (K91.81)
       viral hepatitis with hepatic coma (B15-B19)
    K72.0 Acute and subacute hepatic failure
       K72.00 Acute and subacute hepatic failure without coma
       K72.01 Acute and subacute hepatic failure with coma
    K72.1 Chronic hepatic failure
       K72.10 Chronic hepatic failure without coma
       K72.11 Chronic hepatic failure with coma
    K72.9 Hepatic failure, unspecified
       K72.90 Hepatic failure, unspecified without coma
       K72.91 Hepatic failure, unspecified with coma
          Hepatic coma NOS

## K73 Chronic hepatitis, not elsewhere classifiedK73 Chronic hepatitis, not elsewhere classified

    Excludes1: alcoholic hepatitis (chronic) (K70.1-)
       drug-induced hepatitis (chronic) (K71.-)
       granulomatous hepatitis (chronic) NEC (K75.3)
       reactive, nonspecific hepatitis (chronic) (K75.2)
       viral hepatitis (chronic) (B15-B19)
    K73.0 Chronic persistent hepatitis, not elsewhere classified
    K73.1 Chronic lobular hepatitis, not elsewhere classified
    K73.2 Chronic active hepatitis, not elsewhere classified
       Lupoid hepatitis NEC
    K73.8 Other chronic hepatitis, not elsewhere classified
    K73.9 Chronic hepatitis, unspecified

## K74 Fibrosis and cirrhosis of liverK74 Fibrosis and cirrhosis of liver

    Code also, if applicable, viral hepatitis (acute) (chronic) (B15-B19)
    Excludes1: alcoholic cirrhosis (of liver) (K70.3)
       alcoholic fibrosis of liver (K70.2)
       cardiac sclerosis of liver (K76.1)
       cirrhosis (of liver) with toxic liver disease (K71.7)
       congenital cirrhosis (of liver) (P78.81)
    K74.0 Hepatic fibrosis
    K74.1 Hepatic sclerosis
    K74.2 Hepatic fibrosis with hepatic sclerosis
    K74.3 Primary biliary cirrhosis
       Chronic nonsuppurative destructive cholangitis
    K74.4 Secondary biliary cirrhosis
    K74.5 Biliary cirrhosis, unspecified
    K74.6 Other and unspecified cirrhosis of liver
       K74.60 Unspecified cirrhosis of liver
          Cirrhosis (of liver) NOS
       K74.69 Other cirrhosis of liver
          Cryptogenic cirrhosis (of liver)
          Macronodular cirrhosis (of liver)
          Micronodular ​cirrhosis (of liver)
          Mixed type cirrhosis (of liver)
          Portal cirrhosis (of liver)
          Postnecrotic cirrhosis (of liver)

## K75 Other inflammatory liver diseasesK75 Other inflammatory liver diseases

    Excludes2: toxic liver disease (K71.-)
    K75.0 Abscess of liver
       Cholangitic hepatic abscess
       Hematogenic hepatic abscess
       Hepatic abscess NOS
       Lymphogenic hepatic abscess
       Pylephlebitic hepatic abscess
       Excludes1: amebic liver abscess (A06.4)
          cholangitis without liver abscess (K83.0)
          pylephlebitis without liver abscess (K75.1)
    K75.1 Phlebitis of portal vein
       Pylephlebitis
       Excludes1: pylephlebitic liver abscess (K75.0)
    K75.2 Nonspecific reactive hepatitis
       Excludes1: acute or subacute hepatitis (K72.0-)
          chronic hepatitis NEC (K73.-)
          viral hepatitis (B15-B19)
    K75.3 Granulomatous hepatitis, not elsewhere classified
       Excludes1: acute or subacute hepatitis (K72.0-)
          chronic hepatitis NEC (K73.-)
          viral hepatitis (B15-B19)
    K75.4 Autoimmune hepatitis
    K75.8 Other specified inflammatory liver diseases
       K75.81 Nonalcoholic steatohepatitis (NASH)
       K75.89 Other specified inflammatory liver diseases
    K75.9 Inflammatory liver disease, unspecified
       Hepatitis NOS
       Excludes1: acute or subacute hepatitis (K72.0-)
          chronic hepatitis NEC (K73.-)
          viral hepatitis (B15-B19)

## K76 Other diseases of liverK76 Other diseases of liver

    Excludes2: alcoholic liver disease (K70.-)
       amyloid degeneration of liver (E85.-)
       cystic disease of liver (congenital) (Q44.6)
       hepatic vein thrombosis (I82.0)
       hepatomegaly NOS (R16.0)
       portal vein thrombosis (I81)
       toxic liver disease (K71.-)
    K76.0 Fatty (change of) liver, not elsewhere classified
       Nonalcoholic fatty liver disease (NAFLD)
       Excludes1: ​nonalcoholic steatohepatitis (NASH) (K75.81)
    K76.1 Chronic passive congestion of liver
       Cardiac cirrhosis
       Cardiac sclerosis
    K76.2 Central hemorrhagic necrosis of liver
       Excludes1: liver necrosis with hepatic failure (K72.-)
    K76.3 Infarction of liver
    K76.4 Peliosis hepatis
       Hepatic angiomatosis
    K76.5 Hepatic veno-occlusive disease
       Excludes1: Budd-Chiari syndrome (I82.0)
    K76.6 Portal hypertension
    K76.7 Hepatorenal syndrome
       Excludes1: hepatorenal syndrome following labor and delivery (O90.4)
          postprocedural hepatorenal syndrome (K91.82)
    K76.8 Other specified diseases of liver
       Cyst (simple) of liver
       Focal nodular hyperplasia of liver
       Hepatoptosis
    K76.9 Liver disease, unspecified

## K77 Liver disorders in diseases classified elsewhereK77 Liver disorders in diseases classified elsewhere

    Code first underlying disease, such as:
       amyloidosis (E85.-)
       congenital syphilis (A50.0, A50.5)
       congenital toxoplasmosis (P37.1)
       schistosomiasis (B65.0-B65.9)
    Excludes1: alcoholic hepatitis (K70.1-)
       alcoholic liver disease (K70.-)
       cytomegaloviral hepatitis (B25.1)
       herpesviral [herpes simplex] hepatitis (B00.81)
       infectious mononucleosis with liver disease (B27.0-B27.9 with .9)
       mumps hepatitis (B26.81)
       sarcoidosis with liver disease (D86.89)
       secondary syphilis with liver disease (A51.45)
       syphilis (late) with liver disease (A52.74)
       toxoplasmosis (acquired) hepatitis (B58.1)
       tuberculosis with liver disease (A18.83)

# Disorders of gallbladder, biliary tract and pancreas (K80-K87)Disorders of gallbladder, biliary tract and pancreas (K80-K87)
## K80 CholelithiasisK80 Cholelithiasis

    K80.0 Calculus of gallbladder with acute cholecystitis
       Any condition listed in K80.2 with acute cholecystitis
       K80. ​00 Calculus of gallbladder with acute cholecystitis without obstruction
       K80.01 Calculus of gallbladder with acute cholecystitis with obstruction
    K80.1 Calculus of gallbladder with other cholecystitis
       K80.10 Calculus of gallbladder with chronic cholecystitis without obstruction
          Cholelithiasis with cholecystitis NOS
       K80.11 Calculus of gallbladder with chronic cholecystitis with obstruction
       K80.12 Calculus of gallbladder with acute and chronic cholecystitis without obstruction
       K80.13 Calculus of gallbladder with acute and chronic cholecystitis with obstruction
       K80.18 Calculus of gallbladder with other cholecystitis without obstruction
       K80.19 Calculus of gallbladder with other cholecystitis with obstruction
    K80.2 Calculus of gallbladder without cholecystitis
       Cholecystolithiasis without cholecystitis
       Cholelithiasis (without cholecystitis)
       Colic (recurrent) of gallbladder (without cholecystitis)
       Gallstone (impacted) of cystic duct (without cholecystitis)
       Gallstone (impacted) of gallbladder (without cholecystitis)
       K80.20 Calculus of gallbladder without cholecystitis without obstruction
       K80.21 Calculus of gallbladder without cholecystitis with obstruction
    K80.3 Calculus of bile duct with cholangitis
       Any condition listed in K80.5 with cholangitis
       K80.30 Calculus of bile duct with cholangitis, unspecified, without obstruction
       K80.31 Calculus of bile duct with cholangitis, unspecified, with obstruction
       K80.32 Calculus of bile duct with acute cholangitis without obstruction
       K80.33 Calculus of bile duct with acute cholangitis with obstruction
       K80.34 Calculus of bile duct with chronic cholangitis without obstruction
       K80.35 Calculus of bile duct with chronic cholangitis with obstruction
       K80.36 Calculus of bile duct with acute and chronic cholangitis without obstruction
       K80.37 Calculus of bile duct with acute and chronic cholangitis with obstruction
    K80. ​4 Calculus of bile duct with cholecystitis
       Any condition listed in K80.5 with cholecystitis (with cholangitis)
       K80.40 Calculus of bile duct with cholecystitis, unspecified, without obstruction
       K80.41 Calculus of bile duct with cholecystitis, unspecified, with obstruction
       K80.42 Calculus of bile duct with acute cholecystitis without obstruction
       K80.43 Calculus of bile duct with acute cholecystitis with obstruction
       K80.44 Calculus of bile duct with chronic cholecystitis without obstruction
       K80.45 Calculus of bile duct with chronic cholecystitis with obstruction
       K80.46 Calculus of bile duct with acute and chronic cholecystitis without obstruction
       K80.47 Calculus of bile duct with acute and chronic cholecystitis with obstruction
    K80.5 Calculus of bile duct without cholangitis or cholecystitis
       Choledocholithiasis (without cholangitis or cholecystitis)
       Gallstone (impacted) of bile duct NOS (without cholangitis or cholecystitis)
       Gallstone (impacted) of common duct (without cholangitis or cholecystitis)
       Gallstone (impacted) of hepatic duct (without cholangitis or cholecystitis)
       Hepatic cholelithiasis (without cholangitis or cholecystitis)
       Hepatic colic (recurrent) (without cholangitis or cholecystitis)
       K80.50 Calculus of bile duct without cholangitis or cholecystitis without obstruction
       K80.51 Calculus of bile duct without cholangitis or cholecystitis with obstruction
    K80.6 Calculus of gallbladder and bile duct with cholecystitis
       K80.60 Calculus of gallbladder and bile duct with cholecystitis, unspecified, without obstruction
       K80.61 Calculus of gallbladder and bile duct with cholecystitis, unspecified, with obstruction
       K80.62 Calculus of gallbladder and bile duct with acute cholecystitis without obstruction
       K80.63 Calculus of gallbladder and bile duct with acute cholecystitis with obstruction
       K80.64 Calculus of gallbladder and bile duct with chronic cholecystitis without obstruction
       K80.65 Calculus of gallbladder and bile duct with chronic cholecystitis with obstruction
       K80.66 Calculus of gallbladder and bile duct with acute and chronic cholecystitis without obstruction
       K80. ​67 Calculus of gallbladder and bile duct with acute and chronic cholecystitis with obstruction
    K80.7 Calculus of gallbladder and bile duct without cholecystitis
       K80.70 Calculus of gallbladder and bile duct without cholecystitis without obstruction
       K80.71 Calculus of gallbladder and bile duct without cholecystitis with obstruction
    K80.8 Other cholelithiasis
       K80.80 Other cholelithiasis without obstruction
       K80.81 Other cholelithiasis with obstruction

## K81 CholecystitisK81 Cholecystitis

    Excludes1: cholecystitis with cholelithiasis (K80.-)
    K81.0 Acute cholecystitis
       Abscess of gallbladder
       Angiocholecystitis
       Emphysematous (acute) cholecystitis
       Empyema of gallbladder
       Gangrene of gallbladder
       Gangrenous cholecystitis
       Suppurative cholecystitis
    K81.1 Chronic cholecystitis
    K81.2 Acute cholecystitis with chronic cholecystitis
    K81.9 Cholecystitis, unspecified

## K82 Other diseases of gallbladderK82 Other diseases of gallbladder

    Excludes1: nonvisualization of gallbladder (R93.2)
       postcholecystectomy syndrome (K91.5)
    K82.0 Obstruction of gallbladder
       Occlusion of cystic duct or gallbladder without cholelithiasis
       Stenosis of cystic duct or gallbladder without cholelithiasis
       Stricture of cystic duct or gallbladder without cholelithiasis
       Excludes1: obstruction of gallbladder with cholelithiasis (K80.-)
    K82.1 Hydrops of gallbladder
       Mucocele of gallbladder
    K82.2 Perforation of gallbladder
       Rupture of cystic duct or gallbladder
    K82.3 Fistula of gallbladder
       Cholecystocolic fistula
       Cholecystoduodenal fistula
    K82.4 Cholesterolosis of gallbladder
       Strawberry gallbladder
       Excludes1: cholesterolosis of gallbladder with cholecystitis (K81.-)
          cholesterolosis of gallbladder with cholelithiasis (K80.-)
    K82.8 Other specified diseases of gallbladder
       Adhesions of cystic duct or gallbladder
       Atrophy of cystic duct or gallbladder
       Cyst ​of cystic duct or gallbladder
       Dyskinesia of cystic duct or gallbladder
       Hypertrophy of cystic duct or gallbladder
       Nonfunctioning of cystic duct or gallbladder
       Ulcer of cystic duct or gallbladder
    K82.9 Disease of gallbladder, unspecified

## K83 Other diseases of biliary tractK83 Other diseases of biliary tract

    Excludes1: postcholecystectomy syndrome (K91.5)
    Excludes2: conditions involving the gallbladder (K81-K82)
       conditions involving the cystic duct (K81-K82)
    K83.0 Cholangitis
       Ascending cholangitis
       Cholangitis NOS
       Primary cholangitis
       Recurrent cholangitis
       Sclerosing cholangitis
       Secondary cholangitis
       Stenosing cholangitis
       Suppurative cholangitis
       Excludes1: cholangitic liver abscess (K75.0)
          cholangitis with choledocholithiasis (K80.3-, K80.4-)
          chronic nonsuppurative destructive cholangitis (K74.3)
    K83.1 Obstruction of bile duct
       Occlusion of bile duct without cholelithiasis
       Stenosis of bile duct without cholelithiasis
       Stricture of bile duct without cholelithiasis
       Excludes1: congenital obstruction of bile duct (Q44.3)
          obstruction of bile duct with cholelithiasis (K80.-)
    K83.2 Perforation of bile duct
       Rupture of bile duct
    K83.3 Fistula of bile duct
       Choledochoduodenal fistula
    K83.4 Spasm of sphincter of Oddi
    K83.5 Biliary cyst
    K83.8 Other specified diseases of biliary tract
       Adhesions of biliary tract
       Atrophy of biliary tract
       Hypertrophy of biliary tract
       Ulcer of biliary tract
    K83.9 Disease of biliary tract, unspecified

## K85 Acute pancreatitisK85 Acute pancreatitis

    Abscess of pancreas
    Acute necrosis of pancreas
    Acute (recurrent) pancreatitis
    Gangrene of (gangrenous) pancreas
    Hemorrhagic ​pancreatitis
    Infective necrosis of pancreas
    Subacute pancreatitis
    Suppurative pancreatitis
    K85.0 Idiopathic acute pancreatitis
    K85.1 Biliary acute pancreatitis
       Gallstone pancreatitis
    K85.2 Alcohol induced acute pancreatitis
       Excludes2: alcohol induced chronic pancreatitis (K86.0)
    K85.3 Drug induced acute pancreatitis
       Use additional code to identify:
          drug abuse and dependence (F11.-- F17.-)
    K85.8 Other acute pancreatitis
    K85.9 Acute pancreatitis, unspecified
       Pancreatitis NOS

## K86 Other diseases of pancreasK86 Other diseases of pancreas

    Excludes2: fibrocystic disease of pancreas (E84.-)
       islet cell tumor (of pancreas) (D13.7)
       pancreatic steatorrhea (K90.3)
    K86.0 Alcohol-induced chronic pancreatitis
       Use additional code to identify:
          alcohol abuse and dependence (F10.-)
       Excludes2: alcohol induced acute pancreatitis (K85.2)
    K86.1 Other chronic pancreatitis
       Chronic pancreatitis NOS
       Infectious chronic pancreatitis
       Recurrent chronic pancreatitis
       Relapsing chronic pancreatitis
    K86.2 Cyst of pancreas
    K86.3 Pseudocyst of pancreas
    K86.8 Other specified diseases of pancreas
       Aseptic pancreatic necrosis
       Atrophy of pancreas
       Calculus of pancreas
       Cirrhosis of pancreas
       Fibrosis of pancreas
       Pancreatic fat necrosis
       Pancreatic infantilism
       Pancreatic necrosis NOS
    K86.9 Disease of pancreas, unspecified

## K87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhereK87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere

    Code first underlying disease
    Excludes1: cytomegaloviral pancreatitis(B25.2)
       mumps pancreatitis (B26.3)
       syphilitic ​gallbladder (A52.74)
       syphilitic pancreas (A52.74)
       tuberculosis of gallbladder (A18.83)
       tuberculosis of pancreas (A18.83)

# Other diseases of the digestive system (K90-K94)Other diseases of the digestive system (K90-K94)
## K90 Intestinal malabsorptionK90 Intestinal malabsorption

    Excludes1: intestinal malabsorption following gastrointestinal surgery (K91.2)
    K90.0 Celiac disease
       Gluten-sensitive enteropathy
       Idiopathic steatorrhea
       Nontropical sprue
    K90.1 Tropical sprue
       Sprue NOS
       Tropical steatorrhea
    K90.2 Blind loop syndrome, not elsewhere classified
       Blind loop syndrome NOS
       Excludes1: congenital blind loop syndrome (Q43.8)
          postsurgical blind loop syndrome (K91.2)
    K90.3 Pancreatic steatorrhea
    K90.4 Malabsorption due to intolerance, not elsewhere classified
       Malabsorption due to intolerance to carbohydrate
       Malabsorption due to intolerance to fat
       Malabsorption due to intolerance to protein
       Malabsorption due to intolerance to starch
       Excludes2: gluten-sensitive enteropathy (K90.0)
          lactose intolerance (E73.-)
    K90.8 Other intestinal malabsorption
       K90.81 Whipple's disease
       K90.89 Other intestinal malabsorption
    K90.9 Intestinal malabsorption, unspecified

## K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classifiedK91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

    Excludes2: complications of artificial opening of digestive system (K94.-)
       gastrojejunal ulcer (K28.-)
       postprocedural (radiation) retroperitoneal abscess (K68.11)
       radiation colitis (K52.0)
       radiation gastroenteritis (K52.0)
       radiation proctitis (K62.7)
    K91.0 Vomiting following gastrointestinal surgery
    K91.1 Postgastric surgery syndromes
       Dumping syndrome
       Postgastrectomy syndrome
       Postvagotomy ​syndrome
    K91.2 Postsurgical malabsorption, not elsewhere classified
       Postsurgical blind loop syndrome
       Excludes1: malabsorption osteomalacia in adults (M83.2)
          malabsorption osteoporosis, postsurgical (M81.3)
    K91.3 Postprocedural intestinal obstruction
    K91.5 Postcholecystectomy syndrome
    K91.6 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure
       Excludes1: intraoperative hemorrhage and hematoma of a digestive system organ or structure due to accidental puncture and laceration during a procedure (K91.7-)
       K91.61 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive sytem procedure
       K91.62 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure
    K91.7 Accidental puncture and laceration of a digestive system organ or structure during a procedure
       K91.71 Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure
       K91.72 Accidental puncture and laceration of a digestive system organ or structure during other procedure
    K91.8 Other intraoperative and postprocedural complications and disorders of digestive system
       K91.81 Other intraoperative complications of digestive system
       K91.82 Postprocedural hepatic failure
       K91.83 Postprocedural hepatorenal syndrome
       K91.84 Postprocedural hemorrhage and hematoma of a digestive system organ or structure following a procedure
          K91.840 Postprocedural hemorrhage and hematoma of a digestive system organ or structure following a digestive system procedure
          K91.841 Postprocedural hemorrhage and hematoma of a digestive system organ or structure following other procedure
       K91.85 Complications of intestinal pouch
          K91.850 Pouchitis
             Inflammation of internal ileoanal pouch
          K91.858 Other complications of intestinal pouch
       K91.89 Other postprocedural complications and disorders of digestive system
          Use ​additional code, if applicable, to further specify disorder
          Excludes2: postprocedural retroperitoneal abscess (K68.11)

## K92 Other diseases of digestive systemK92 Other diseases of digestive system

    Excludes1: neonatal gastrointestinal hemorrhage (P54.0-P54.3)
    K92.0 Hematemesis
    K92.1 Melena
       Excludes1: occult blood in feces (R19.5)
    K92.2 Gastrointestinal hemorrhage, unspecified
       Gastric hemorrhage NOS
       Intestinal hemorrhage NOS
       Excludes1: acute hemorrhagic gastritis (K29.01)
          hemorrhage of anus and rectum (K62.5)
          angiodysplasia of stomach with hemorrhage (K31.811)
          diverticular disease with hemorrhage (K57.-)
          gastritis and duodenitis with hemorrhage (K29.-)
          peptic ulcer with hemorrhage (K25-K28)
    K92.8 Other specified diseases of the digestive system
       K92.81 Gastrointestinal mucositis (ulcerative)
          Code also type of associated therapy, such as:
             antineoplastic and immunosuppressive drugs (T45.1x-)
             radiological procedure and radiotherapy (Y84.2)
          Excludes2: mucositis (ulcerative) of vagina and vulva (N76.81)
             nasal mucositis (ulcerative) (J34.81)
             oral mucositis (ulcerative) (K12.3-)
       K92.89 Other specified diseases of the digestive system
    K92.9 Disease of digestive system, unspecified

## K94 Complications of artificial openings of the digestive systemK94 Complications of artificial openings of the digestive system

    K94.0 Colostomy complications
       K94.00 Colostomy complication, unspecified
       K94.01 Colostomy hemorrhage
       K94.02 Colostomy infection
          Use additional code to specify type of infection, such as:
             cellulitis of abdominal wall (L03.32)
             sepsis (A40.-, A41.-)
       K94.03 Colostomy malfunction
          Mechanical complication of colostomy
       K94.09 Other complications of colostomy
    K94.1 Enterostomy complications
       K94.10 Enterostomy complication, unspecified
       K94.11 Enterostomy hemorrhage
       K94.12 Enterostomy infection
          Use ​additional code to specify type of infection, such as:
             cellulitis of abdominal wall (L03.32)
             sepsis (A40.-, A41.-)
       K94.13 Enterostomy malfunction
          Mechanical complication of enterostomy
       K94.19 Other complications of enterostomy
    K94.2 Gastrostomy complications
       K94.20 Gastrostomy complication, unspecified
       K94.21 Gastrostomy hemorrhage
       K94.22 Gastrostomy infection
          Use additional code to specify type of infection, such as:
             cellulitis of abdominal wall (L03.32)
             sepsis (A40.-, A41.-)
       K94.23 Gastrostomy malfunction
          Mechanical complication of gastrostomy
       K94.29 Other complications of gastrostomy
    K94.3 Esophagostomy complications
       K94.30 Esophagostomy complications, unspecified
       K94.31 Esophagostomy hemorrhage
       K94.32 Esophagostomy infection
          Use additional code to identify the infection
       K94.33 Esophagostomy malfunction
          Mechanical complication of esophagostomy
       K94.39 Other complications ofesophagostomy