ICD-10 Code F12.159 – Cannabis abuse with psychotic disorder, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F12.159 – Cannabis abuse with psychotic disorder, unspecified
What it is
This code identifies cannabis abuse accompanied by a psychotic disorder, but the psychosis is not further specified. Use it when the record links cannabis use with psychotic symptoms and gives no more precise psychotic diagnosis.
Clinical signs
Clinical features may include hallucinations, delusions, disorganized thinking, or marked paranoia. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents cannabis abuse and a psychotic disorder together, and the psychotic disorder is unspecified. It may fit notes describing substance-related psychosis without a clearer subtype. Check documentation if the record does not clearly connect the psychosis to cannabis use.
Do not use for
Do not use it for cannabis use without abuse, or for a psychotic disorder unrelated to cannabis. Do not assign it when the chart specifies a more precise psychotic diagnosis.
Coding tip
Confirm the provider explicitly links the psychotic disorder to cannabis abuse before reporting F12.159.