ICD-10 Code F16.122 – Hallucinogen abuse with intoxication with perceptual disturbance (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F16.122 – Hallucinogen abuse with intoxication with perceptual disturbance
What it is
This code identifies hallucinogen abuse with acute intoxication and perceptual disturbance. Use it when the patient has misused a hallucinogen and is experiencing altered perception, such as hallucinations or misperceptions, during intoxication.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include perceptual changes, distorted sensory experiences, agitation, confusion, or unusual behavior during recent hallucinogen use.
When to use this code
Use this code when the record clearly documents hallucinogen abuse, intoxication, and a perceptual disturbance linked to the substance use. It fits encounters where the clinician describes acute effects rather than dependence or withdrawal. If the documentation does not specify intoxication with perceptual disturbance, check documentation before coding.
Do not use for
Do not use this code for hallucinogen dependence, uncomplicated abuse, or intoxication without perceptual disturbance. Also avoid it when symptoms are better explained by another condition or the substance is not identified.
Coding tip
Verify that the note links the perceptual disturbance to hallucinogen intoxication, not to a psychiatric disorder or another drug.