Hallucinogen abuse, in remission

This code signifies a patient's history of problematic hallucinogen use that no longer meets the criteria for active abuse or dependence. The individual has achieved a period of sustained abstinence or controlled use, with no current symptoms or functional impairment directly related to hallucinogen use. This indicates a past diagnosis of hallucinogen abuse, now in a stable, non-active phase.

Apply this code when documentation clearly indicates a prior diagnosis of hallucinogen abuse and the patient is currently in a state of remission. This is supported by a clinician's assessment noting no current hallucinogen use or related symptoms, often following a period of treatment or self-recovery. Use this code for follow-up appointments or when documenting a patient's past medical history of substance use disorder.

• Ensure the documentation explicitly states "in remission" or similar language indicating a resolved active abuse state.
• Do not use this code if the patient is actively using hallucinogens or experiencing withdrawal/intoxication symptoms; instead, use codes for active abuse or dependence.
• Consider co-occurring mental health conditions (e.g., F20-F48) if documented, as these are frequently associated with substance use disorders.