**Abstract:**  
  
Inpatient psychiatric hospitalization provides twenty four (24) hours of daily
care in a structured, intensive, and secure setting for patients who cannot be
safely and/or adequately managed at a lower level of care. This setting
provides daily physician (MD/DO) supervision, twenty-four (24) hour
nursing/treatment team evaluation and observation, diagnostic services, and
psychotherapeutic and medical interventions.  
  
Inpatient psychiatric care may be delivered in a Psychiatric Hospital, a
Psychiatric Hospital Acute Care Unit within a Psychiatric Institution, or a
Psychiatric Inpatient Unit within a General Hospital.  
  
 **Indications:**  
  
Medicare patients admitted to inpatient psychiatric hospitalization must be
under the care of a physician who is knowledgeable about the patient. The
physician must certify/recertify (see "Documentation Requirements" section in
the related Billing and Coding Article) the need for inpatient psychiatric
hospitalization. The patient must require "active treatment" of his/her
psychiatric disorder. The patient or legal guardian must provide written
informed consent for inpatient psychiatric hospitalization in accord with
state law. If the patient is subject to involuntary or court-ordered
commitment, the services must still meet the requirements for medical
necessity in order to be covered by Medicare.  
  
 **Admission Criteria (Intensity of Service):**  
The patient must require intensive, comprehensive, multimodal treatment
including 24 hours per day of medical supervision and coordination because of
a mental disorder. The need for 24 hours of supervision may be due to the need
for patient safety, psychiatric diagnostic evaluation, potential severe side
effects of psychotropic medication associated with medical or psychiatric
comorbidities, or evaluation of behaviors consistent with an acute psychiatric
disorder for which a medical cause has not been ruled out.  
  
The acute psychiatric condition being evaluated or treated by inpatient
psychiatric hospitalization must require active treatment, including a
combination of services such as intensive nursing and medical intervention,
psychotherapy, occupational and activity therapy. Patients must require
inpatient psychiatric hospitalization services at levels of intensity and
frequency exceeding what may be rendered in an outpatient setting, including
psychiatric partial hospitalization. There must be evidence of failure at,
inability to benefit from, or unacceptable risk in an outpatient treatment
setting. Claims for care delivered at an inappropriate level of intensity will
be denied.  
  
The following parameters are intended to describe the severity of illness and
intensity of service that characterize a patient appropriate for inpatient
psychiatric hospitalization. These criteria do not represent an all-inclusive
list and are intended as guidelines.  
  
 **Admission Criteria (Severity of Illness):**  
Examples of inpatient admission criteria include (but are not limited to):

  1. Threat to self requiring 24-hour professional observation
    1. suicidal ideation or gesture within 72 hours prior to admission
    2. self mutilation (actual or threatened) within 72 hours prior to admission
    3. chronic and continuing self destructive behavior (e.g., bulemic behaviors, substance abuse) that poses a significant and/or immediate threat to life, limb, or bodily function.
  2. Threat to others requiring 24-hour professional observation: 
    1. assaultive behavior threatening others within 72 hours prior to admission.
    2. significant verbal threat to the safety of others within 72 hours prior to admission.
  3. Command hallucinations directing harm to self or others where there is the risk of the patient taking action on them.
  4. Acute disordered/bizarre behavior or psychomotor agitation or retardation that interferes with the activities of daily living (ADLs) so that the patient cannot function at a less intensive level of care during evaluation and treatment.
  5. Cognitive impairment (disorientation or memory loss) due to an acute Axis I disorder that endangers the welfare of the patient or others.
  6. For patients with a dementing disorder for evaluation or treatment of a psychiatric comorbidity (e.g., risk of suicide, violence, severe depression) warranting inpatient admission.
  7. A mental disorder causing major disability in social, interpersonal, occupational, and/or educational functioning that is leading to dangerous or life-threatening functioning, and that can only be addressed in an acute inpatient setting.
  8. A mental disorder that causes an inability to maintain adequate nutrition or self-care, and family/community support cannot provide reliable, essential care, so that the patient cannot function at a less intensive level of care during evaluation and treatment.
  9. Failure of outpatient psychiatric treatment so that the beneficiary requires 24-hour professional observation and care. Reasons for the failure of outpatient treatment could include: 
    1. Increasing severity of psychiatric symptoms;
    2. Noncompliance with medication regimen due to the severity of psychiatric symptoms;
    3. Inadequate clinical response to psychotropic medications;
    4. Due to the severity of psychiatric symptoms, the patient is unable to participate in an outpatient psychiatric treatment program.

NOTE: For all symptom sets or diagnoses, the severity and acuity of symptoms
and the likelihood of response to treatment, combined with the requirement for
an intensive, 24-hour level of care, are the significant factors in
determining the necessity of inpatient psychiatric treatment.

  
**Active Treatment:**

The use of mild tranquilizers or sedatives solely for the purpose of relieving
anxiety or insomnia would not constitute active treatment.  
  
Although it is a CMS requirement that the physician see the patient at least
once per week, this is a dated reference, referring to a time when patients
were hospitalized for long periods of time. The current standard of practice
is that the physician usually sees the patient five times per week.  
  
 **Discharge Criteria (Intensity of Service):**  
Patients in inpatient psychiatric care may be discharged by stepping down to a
less intensive level of outpatient care. Stepping down to a less intensive
level of service than inpatient hospitalization would be considered when
patients no longer require 24-hour observation for safety, diagnostic
evaluation, or treatment as described above. These patients would become
outpatients, receiving either psychiatric partial hospitalization or
individual outpatient mental health services, rendered and billed by
appropriate providers. It may be appropriate for some patients to receive an
unsupervised pass to leave the hospital for a brief period in order to assess
their readiness for outpatient care.  
  
 **Discharge Criteria (Severity of Illness):**  
Patients whose clinical condition improves or stabilizes, who no longer pose
an impending threat to self or others, and who do not still require 24-hour
observation available in an inpatient psychiatric unit should be stepped down
to outpatient care. Patients who are persistently unwilling or unable to
participate in active treatment of their psychiatric condition would also be
appropriate for discharge.  
  
 **Qualified Providers:**  
For Medicare coverage, inpatient psychiatric diagnostic and psychotherapy
services rendered to Medicare beneficiaries must be provided by individuals
licensed or otherwise authorized by the state in which they practice, to
render such services. While non-licensed trainees may provide psychotherapy
services as part of a training program, those psychotherapy services rendered
by individuals not licensed or authorized by the state will be considered not
medically necessary, and may contribute to the denial of inpatient psychiatric
claims. The majority of psychotherapy services must be provided by licensed
personnel to assure a satisfactory patient outcome and Medicare coverage. Non-
physician practitioners, licensed or authorized by the state, may perform
duties within their scope of practice, such as individual and/or group
psychotherapy, family counseling, occupational therapy, and diagnostic
services. Providers of inpatient psychiatric services may include:  
  
 _Physicians:_  
1\. Medical Doctor (MD)  
  
2\. Doctor of Osteopathy (DO)  
  
 _Nonphysician Clinical Practitioners:_  
1\. Clinical Psychologists  
  
2\. Clinical Nurse Specialists (CNSs), Adult Psychiatric and Mental Health
Nurse Practitioners, or other master's-prepared nurses with appropriate mental
health training and/or experience.*  
  
3\. Licensed/certified clinical social workers (CSWs), master's-prepared
social workers with additional clinical training AND licensure or state
certification.  
  
4\. Occupational Therapists  
  
* Medicare requires nurses who provide psychiatric diagnostic evaluation and psychotherapy services to have special training and/or experience beyond the standard curriculum required for an RN. Such nurses should have one or more of the following credentials: MS/MSN - Master of Science in Psychiatric Nursing (or its equivalent); CNS - Clinical Nurse Specialist in Adult Psychiatric and Mental Health Nursing; NP - Adult Psychiatric and Mental Health Nurse Practitioner.  
  
These requirements do not apply to the standard nursing services rendered to
psychiatric inpatients such as nursing evaluations, passing medications,
psychiatric education and training services, and milieu interventions.  
  
 _Other Providers Licensed or Otherwise Authorized by the State:_  
1\. Marriage and Family Therapists (MFTs).  
  
2\. Registered Therapists and Certified Alcohol and Drug Counselors.  
  
3\. Recreational Therapists.  
  
4\. Registered pharmacists who may provide individual medication counseling
and periodic educational groups  
  
5\. Other licensed or certified mental health practitioners whose scope of
practice requires a specific level of supervision (e.g., Psychological
Assistants, MFT interns and non-licensed/certified master's degree in social
work may provide services within the limits of state scope of practice,
licensure, and regulations).  
  
_Other Comments Related to Qualified Providers:_  
1\. Unlicensed psychology interns are not considered to be a covered provider
of service.  
  
2\. Supervision of trainees must at least meet the state-mandated supervision
requirements. Such supervision need not occur on the inpatient psychiatric
unit but must be documented and documentation must be maintained in the
hospital and available for inspection upon request by Medicare or submitted to
Medicare when requested.  
  
3\. Routine services provided as a part of the care of psychiatric inpatients,
oftentimes performed by bachelor degree level psychiatric technicians, under
the direction of the nursing service, need to conform to local state licensing
or certification requirements, if any.  
  
NOTE: Limits of local, state or federal scope of practice acts, legislation,
and licensure regulations apply to all practitioners within an inpatient
psychiatric treatment unit. In all cases, the most restrictive limit shall
apply (e.g., who may or may not perform individual or group psychotherapy, and
for what conditions).  
  
 **Limitations:**

  1. Failure to provide documentation to support the necessity of test(s) or treatment(s) may result in denial of claims or services. This includes medical records:
    1. that do not support the reasonableness and necessity of service(s) furnished;
    2. in which the documentation is illegible; or
    3. where medical necessity for inpatient psychiatric services is not appropriately certified by the physician.
  2. The following services do not represent reasonable and medically necessary inpatient psychiatric services: 
    1. Services which are primarily social, recreational or diversion activities, or custodial or respite care;
    2. Services attempting to maintain psychiatric wellness for the chronically mentally ill;
    3. Treatment of chronic conditions without acute exacerbation;
    4. Vocational training;
    5. Medical records that fail to document the required level of physician supervision and treatment planning process;
    6. Electrosleep therapy
    7. Electrical Aversion Therapy for treatment of alcoholism
    8. Hemodialysis for the treatment of schizophrenia
    9. Transcendental Meditation
    10. Multiple Electroconvulsive Therapy (MECT).
  3. It is not reasonable and medically necessary to provide inpatient psychiatric hospital services to the following types of patients: 
    1. Patients who require primarily social, custodial, recreational, or respite care;
    2. Patients whose clinical acuity requires less than twenty-four (24) hours of supervised care per day;
    3. Patients who have met the criteria for discharge from inpatient hospitalization;
    4. Patients whose symptoms are the result of a medical condition that requires a medical/surgical setting for appropriate treatment;
    5. Patients whose primary problem is a physical health problem without a concurrent major psychiatric episode;
    6. Patients with alcohol or substance abuse problems who do not have a combined need for "active treatment" and psychiatric care that can only be provided in the inpatient hospital setting.
    7. Patients for whom admission to a psychiatric hospital is being used as an alternative to incarceration.

  
  
_Items and Services Furnished by Physicians Under Part B:_

Professional services billed to Medicare Part B (e.g., services of
psychiatrists and psychologists) may be medically necessary, even though
psychiatric inpatient hospitalization services are not.  
  
If the facility portion of inpatient psychiatric services is denied as not
medically necessary this does not mean that the physician service is also not
medically necessary. The physician service to the patient may be medically
necessary even though the level of service rendered in an inpatient
psychiatric facility is not medically necessary.  
  
Physician visits to a patient must involve a face-to-face encounter. Physician
visits that only comprise team conferences or discussion with staff can not be
billed to the carrier.