Unspecified drug-induced mental disorder

This code signifies a mental or behavioral disturbance that is directly attributable to the physiological effects of a drug, but the specific nature of the mental disorder is not documented. It covers a broad range of psychiatric symptoms, such as psychosis, mood disturbances, anxiety, or cognitive impairment, when the causative drug is known but the precise mental manifestation is not specified.

Use this code when documentation clearly links a patient's mental symptoms to drug use (prescribed, illicit, or overdose) but does not specify a particular drug-induced psychiatric condition (e.g., drug-induced psychotic disorder, drug-induced mood disorder). This code is appropriate when the provider states "drug-induced mental disorder, unspecified" or similar vague terminology.

• Always seek clarification from the provider if a more specific drug-induced mental disorder can be identified.
• Code first the specific drug poisoning or adverse effect, if applicable, followed by this code.
• Do not use this code if the mental disorder is clearly due to drug dependence or withdrawal; use codes from category 304 or 305.