ICD-10 Code F16.920 – Hallucinogen use, unspecified with intoxication, uncomplicated (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F16.920 – Hallucinogen use, unspecified with intoxication, uncomplicated
What it is
This code identifies hallucinogen use, with current intoxication, when the specific substance is not documented and the episode is uncomplicated. It reflects acute effects from use rather than a chronic use disorder.
Clinical signs
Clinical features vary; refer to documentation. Typical intoxication findings may include altered perception, mood changes, impaired judgment, anxiety, or perceptual disturbances consistent with hallucinogen use.
When to use this code
Use this code when the record states hallucinogen intoxication but does not name the drug and no complication is documented. It is appropriate for uncomplicated intoxication managed without additional injury, delirium, or other coded complications. Check documentation if the substance or severity is unclear.
Do not use for
Do not use this code for hallucinogen dependence, abuse without intoxication, or intoxication with a documented complication. If the substance is identified, code the specific hallucinogen instead of the unspecified category.
Coding tip
Verify both the substance and whether intoxication is uncomplicated before assigning F16.920.