ICD-10 Code F16.11 – Hallucinogen abuse, in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F16.11 – Hallucinogen abuse, in remission
What it is
F16.11 identifies a past pattern of hallucinogen abuse that is currently in remission. Use it when the record shows the disorder is no longer active, but the diagnosis still applies.
Clinical signs
Clinical features vary; refer to documentation. Typical notes may describe a history of hallucinogen misuse with no current use or only minimal symptoms, and remission should be documented by the treating clinician.
When to use this code
Use this code when the provider documents hallucinogen abuse in remission, including early or sustained remission if stated. It fits follow-up visits, behavioral health reviews, or problem lists where the disorder remains relevant but is not active.
Confirm the substance involved and the remission status in the chart. If the record only says “history of use” without abuse or remission language, check documentation before assigning F16.11.
Do not use for
Do not use F16.11 for current hallucinogen abuse, intoxication, dependence, or unspecified hallucinogen-related disorders. Check documentation if the provider describes use without clear remission.
Coding tip
Code the active status exactly as documented; remission wording must come from the provider, not inference.