F16.21
BillableHallucinogen dependence, in remission
HCC Category Mapping
V28HCC 137 — Drug Use Disorder/Substance Use Disorder, Moderate/Severe
0.358V24HCC 55 — Drug/Alcohol Dependence
0.334ESRDHCC 55 — Drug/Alcohol Dependence
0.000What This Code Means
A person who was dependent on hallucinogenic drugs is now in remission, meaning they are no longer actively using or dependent on these substances.
Coding Tips
- •Use this code when the patient has achieved sustained abstinence or controlled use after hallucinogen dependence
- •Document the length and type of remission (early or sustained) if available in the clinical record
Clinical Significance
Hallucinogen dependence in remission indicates a patient who has achieved sustained recovery from hallucinogen dependence. This remains clinically significant because it reflects ongoing relapse risk and need for continued monitoring, support services, and substance abuse follow-up.
Documentation Requirements
- ✓Provider documentation of prior hallucinogen dependence
- ✓Explicit statement that the patient is 'in remission' — early or sustained
- ✓Duration of remission documented when available
- ✓Ongoing treatment or monitoring plan (counseling, support groups, follow-up visits)
- ✓Assessment of relapse risk factors
Commonly Confused Codes
F16.20 — Hallucinogen dependence, uncomplicated; use for active dependence without current complicationsF16.11 — Hallucinogen abuse, in remission; use when the prior condition was abuse not dependenceZ86.59 — Personal history of other mental and behavioral disorders; this is less specific and not preferred when remission status is documentedF16.90 — Hallucinogen use, unspecified; does not capture dependence or remission status
Code Hierarchy
└F16Hallucinogen related disorders└F16.2Hallucinogen dependence└F16.21Hallucinogen dependence, in remission
└F16.21Hallucinogen dependence, in remission