ICD-10 Code F16.951 – Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with hallucinations (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F16.951 – Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with hallucinations
What it is
This code identifies hallucinogen use with a psychotic disorder caused by the substance, where hallucinations are present. Use it when the record links the psychotic symptoms directly to hallucinogen use.
Clinical signs
Typical findings include hallucinations, disturbed perception, and other psychotic symptoms occurring with hallucinogen use. Clinical features vary; refer to documentation for the specific presentation and whether symptoms are substance-induced.
When to use this code
Use this code when the provider documents hallucinogen use, unspecified, together with hallucinogen-induced psychotic disorder with hallucinations. It fits encounters where the psychosis is attributed to hallucinogen exposure, not a primary psychotic disorder. Check documentation if the substance or diagnosis is unclear.
Do not use for
Do not use it for hallucinogen use without psychosis, or for psychotic disorders not documented as substance-induced. Check documentation if the record suggests another substance, another mental disorder, or a different hallucinogen-related diagnosis.
Coding tip
Code the substance use and the substance-induced psychotic disorder only when both are clearly documented.