Hallucinogen use, unsp w oth hallucinogen-induced disorder

This code signifies a patient's problematic pattern of hallucinogen use where the specific type of hallucinogen is not documented, and they are experiencing another specified hallucinogen-induced mental disorder. This could include conditions like hallucinogen-induced anxiety disorder, mood disorder, or psychotic disorder, but not intoxication, withdrawal, or delirium.

Apply this code when documentation indicates a hallucinogen use disorder and a co-occurring hallucinogen-induced mental health condition, but the specific hallucinogen is not identified. This is appropriate when the clinician has diagnosed an "other" hallucinogen-induced disorder, distinct from the more common intoxication or withdrawal.

• Ensure the documentation clearly states an "other" hallucinogen-induced disorder, not just intoxication or withdrawal.
• Only use this code when the specific hallucinogen is truly unspecified; if known, a more specific F16.xxx code should be used.
• Sequence this code as a primary diagnosis when the hallucinogen-induced disorder is the focus of the encounter.