ICD-10-CM diagnosis code
F16.19 Hallucinogen abuse with unspecified hallucinogen-induced disorder
- Billable
- Yes, a complete code (FY2026)
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Other codes in F16
40 complete codes in this category.
- F16.150Hallucinogen abuse with hallucinogen-induced psychotic disorder with delusions
- F16.151Hallucinogen abuse with hallucinogen-induced psychotic disorder with hallucinations
- F16.159Hallucinogen abuse with hallucinogen-induced psychotic disorder, unspecified
- F16.180Hallucinogen abuse with hallucinogen-induced anxiety disorder
- F16.183Hallucinogen abuse with hallucinogen persisting perception disorder (flashbacks)
- F16.188Hallucinogen abuse with other hallucinogen-induced disorder
- F16.19Hallucinogen abuse with unspecified hallucinogen-induced disorder
- F16.20Hallucinogen dependence, uncomplicated
- F16.21Hallucinogen dependence, in remission
- F16.220Hallucinogen dependence with intoxication, uncomplicated
- F16.221Hallucinogen dependence with intoxication with delirium
- F16.229Hallucinogen dependence with intoxication, unspecified
Documentation tips
- Make sure the note supports every element of the title, “Hallucinogen abuse with unspecified hallucinogen-induced disorder”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to F16.
The international WHO ICD-10 also has F16, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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