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ICD-10 Guide
ICD-10 CodesF16.180

F16.180

Billable

Hallucinogen abuse with hallucinogen-induced anxiety disorder

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

Code Description

ICD-10 F16.180 is a billable code used to indicate a diagnosis of hallucinogen abuse with hallucinogen-induced anxiety disorder.

Key Diagnostic Point:

Hallucinogen abuse with hallucinogen-induced anxiety disorder refers to a pattern of hallucinogen use that leads to significant impairment or distress, characterized by the development of anxiety symptoms directly attributable to the use of hallucinogenic substances. Hallucinogens, such as LSD, psilocybin, and mescaline, can induce profound alterations in perception, mood, and cognitive processes. When abused, these substances can lead to acute anxiety episodes, panic attacks, and persistent anxiety disorders. The diagnosis requires evidence of substance use leading to anxiety symptoms that are not better explained by other mental health conditions. Clinicians must assess the severity of the anxiety, the frequency and quantity of hallucinogen use, and any co-occurring mental health disorders. Treatment often involves a combination of psychotherapy, such as cognitive-behavioral therapy (CBT), and pharmacotherapy to manage anxiety symptoms. Understanding the interplay between substance use and mental health is crucial for effective intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between hallucinogen-induced anxiety and other anxiety disorders.
  • Documenting the specific hallucinogen used and its effects.
  • Identifying the duration and frequency of substance use.
  • Assessing co-occurring mental health disorders.

Audit Risk Factors

  • Inadequate documentation of substance use history.
  • Failure to link anxiety symptoms directly to hallucinogen use.
  • Misclassification of anxiety disorders.
  • Lack of comprehensive treatment plans.

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed patient history, including substance use patterns and mental health evaluations.

Common Clinical Scenarios

Patients presenting with anxiety symptoms following hallucinogen use.

Billing Considerations

Consideration of co-occurring disorders and the need for a multidisciplinary approach.

Addiction Medicine

Documentation Requirements

Comprehensive substance use assessments and treatment plans.

Common Clinical Scenarios

Patients in withdrawal or experiencing anxiety due to hallucinogen abuse.

Billing Considerations

Focus on harm reduction strategies and long-term recovery planning.

Coding Guidelines

Inclusion Criteria

Use F16.180 When
  • Follow ICD
  • CM guidelines for substance use disorders, ensuring accurate documentation of the relationship between hallucinogen use and anxiety symptoms
  • Include details on the severity and duration of symptoms

Exclusion Criteria

Do NOT use F16.180 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits for patients with hallucinogen-induced anxiety.

Documentation Requirements

Document the patient's history, current symptoms, and treatment plan.

Specialty Considerations

Psychiatry may require more detailed mental status examinations.

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 the differentiation of hallucinogen-induced conditions, which aids in better treatment planning and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of substance use disorders, including the differentiation of hallucinogen-induced conditions, which aids in better treatment planning and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of substance use disorders, including the differentiation of hallucinogen-induced conditions, which aids in better treatment planning and resource allocation.

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 hallucinogen abuse and dependence?

Hallucinogen abuse refers to the harmful use of hallucinogens without meeting criteria for dependence, while dependence includes a pattern of use leading to tolerance, withdrawal, and significant impairment.