Unknown or unspecified psychoactive substance dependence, sustained full remission

**Definition:** After a diagnosis of Unknown or unspecified psychoactive substance dependence, sustained full remission, and often following a treatment episode or other intervention (including self-intervention), the person has been abstinent from the substance for 12 months or longer.

**Exclusions:** - Episode of harmful use of unknown or unspecified psychoactive substances - Harmful pattern of use of unknown or unspecified psychoactive substance