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ICD-10 Guide
ICD-10 CodesF16.95

F16.95

Billable

Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F16.95 is a billable code used to indicate a diagnosis of hallucinogen use, unspecified with hallucinogen-induced psychotic disorder.

Key Diagnostic Point:

F16.95 refers to a condition characterized by the use of hallucinogenic substances that leads to a psychotic disorder. Hallucinogens, such as LSD, psilocybin, and mescaline, can cause significant alterations in perception, mood, and cognitive processes. When an individual experiences psychotic symptoms—such as hallucinations, delusions, or disorganized thinking—due to hallucinogen use, it is classified under this code. The unspecified nature indicates that the specific hallucinogen used is not documented. This condition can lead to severe impairment in social and occupational functioning and may require immediate intervention. Treatment often involves a combination of psychiatric care, substance use disorder therapy, and supportive measures to ensure the safety and stabilization of the patient. Understanding the nuances of this diagnosis is crucial for effective treatment and accurate coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Unspecified nature of the hallucinogen complicates documentation.
  • Differentiating between intoxication and withdrawal symptoms can be challenging.
  • Requires comprehensive understanding of substance use disorders.
  • Potential overlap with other mental health disorders necessitates careful assessment.

Audit Risk Factors

  • Inadequate documentation of the specific hallucinogen used.
  • Failure to document the severity of psychotic symptoms.
  • Lack of evidence for the relationship between substance use and psychosis.
  • Misclassification of the condition as a primary psychotic disorder without substance involvement.

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed psychiatric evaluations, including history of substance use and mental status examinations.

Common Clinical Scenarios

Patients presenting with acute psychosis following hallucinogen use, requiring stabilization and psychiatric intervention.

Billing Considerations

Consideration of co-occurring mental health disorders and the need for integrated treatment plans.

Addiction Medicine

Documentation Requirements

Comprehensive substance use history, including patterns of use and previous treatment attempts.

Common Clinical Scenarios

Patients in withdrawal from hallucinogens or those seeking treatment for hallucinogen use disorder.

Billing Considerations

Focus on harm reduction strategies and the need for ongoing support and counseling.

Coding Guidelines

Inclusion Criteria

Use F16.95 When
  • According to ICD
  • 10 guidelines, F16
  • 95 should be used when there is evidence of hallucinogen use leading to psychotic symptoms, and the specific substance is not documented
  • Coders must ensure that the documentation supports the diagnosis and reflects the patient's clinical status

Exclusion Criteria

Do NOT use F16.95 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used for follow-up visits for patients diagnosed with hallucinogen-induced psychotic disorder.

Documentation Requirements

Documentation must include a review of symptoms, treatment response, and any changes in mental status.

Specialty Considerations

Psychiatrists should ensure comprehensive mental health assessments are documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of substance use disorders, including hallucinogen use. This specificity aids in better tracking of treatment outcomes and resource allocation for mental health services.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of substance use disorders, including hallucinogen use. This specificity aids in better tracking of treatment outcomes and resource allocation for mental health services.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of substance use disorders, including hallucinogen use. This specificity aids in better tracking of treatment outcomes and resource allocation for mental health services.

Resources

Clinical References

  • •
    Substance Abuse and Mental Health Services Administration (SAMHSA)

Coding & Billing References

  • •
    Substance Abuse and Mental Health Services Administration (SAMHSA)

Frequently Asked Questions

What is the difference between F16.95 and F16.94?

F16.95 is used when hallucinogen use leads to psychotic symptoms, while F16.94 is used when it leads to mood disorders. The distinction lies in the primary symptoms experienced by the patient.