ICD-10 Code F11.959 – Opioid use, unspecified with opioid-induced psychotic disorder, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F11.959 – Opioid use, unspecified with opioid-induced psychotic disorder, unspecified
What it is
This code identifies opioid use disorder when the patient also has an opioid-induced psychotic disorder, but the psychosis type is not further specified. It is used when documentation supports both opioid use and a substance-induced psychotic condition.
Clinical signs
Clinical features may include hallucinations, delusions, disorganized thinking, or other psychotic symptoms occurring in the setting of opioid use. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly links psychotic symptoms to opioid use and the provider documents the opioid use as unspecified. It may apply during an acute episode, emergency visit, or inpatient stay if the diagnosis is stated. Check documentation if the psychotic disorder is due to another substance or if opioid use disorder is not documented.
Do not use for
Do not use this code for primary psychotic disorders, such as schizophrenia, or for psychosis not attributed to opioids. Do not use it when the record lacks support for opioid-related causation; check documentation.
Coding tip
Code both the opioid use and the substance-induced psychotic disorder only when the provider documents the relationship clearly.