ICD-10 Code F16.19 – Hallucinogen abuse with unspecified hallucinogen-induced disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F16.19 – Hallucinogen abuse with unspecified hallucinogen-induced disorder
What it is
This code identifies hallucinogen abuse when the record also documents an unspecified hallucinogen-induced disorder. Use it when the substance is a hallucinogen and the related mental or behavioral disturbance is not further specified.
Clinical signs
Clinical features vary; refer to documentation. Records may note problematic hallucinogen use along with substance-related changes in perception, mood, cognition, or behavior, but the induced disorder is not described in detail.
When to use this code
Use this code when the provider documents hallucinogen abuse and an associated hallucinogen-induced disorder, but does not name the specific disorder. It fits cases where the chart confirms a substance-related condition and no more precise ICD-10 option is supported. Check documentation if the substance or disorder is unclear.
Do not use for
Do not use this code for hallucinogen dependence, uncomplicated use, or intoxication without abuse. Also avoid it when the induced disorder is specified more clearly in the note.
Coding tip
Code only what is explicitly documented, and confirm both the abuse and the unspecified induced disorder before assigning F16.19.