F16.21
Hallucinogen dependence, in remission
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 3 never code together
F01-F99chapter
Excludes2
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 12
F16.21code
Inclusion terms
- Other hallucinogen use disorder, moderate, in early remission
- Other hallucinogen use disorder, moderate, in sustained remission
- Other hallucinogen use disorder, severe, in early remission
- Other hallucinogen use disorder, severe, in sustained remission
- Phencyclidine use disorder, moderate, in early remission
- Phencyclidine use disorder, moderate, in sustained remission
- Phencyclidine use disorder, severe, in early remission
- Phencyclidine use disorder, severe, in sustained remission
F16code
Includes
- ecstasy
- PCP
- phencyclidine
F01-F99chapter
Includes
- disorders of psychological development
Index entries leading here 2
Alongside this code 6 same parent — F16.2
F16.20 Hallucinogen dependence, uncomplicated F16.22 Hallucinogen dependence with intoxication category F16.24 Hallucinogen dependence w hallucinogen-induced mood disorder F16.25 Hallucinogen dependence w psychotic disorder category F16.28 Hallucinogen dependence w oth hallucinogen-induced disorder category F16.29 Hallucinogen dependence w unsp hallucinogen-induced disorder
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.