6C4G.1Z

ICD-11 MMS 2026-01

Harmful pattern of use of unknown or unspecified psychoactive substance, unspecified

Exclusions from above levels

  • 6C4G.0 – Episode of harmful use of unknown or unspecified psychoactive substances
  • 6C4G.2 – Unknown or unspecified psychoactive substance dependence
  • QE62 – Uncomplicated bereavement
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  • QE84 – Acute stress reaction

Sibling codes

  • 6C4G.10 – Harmful pattern of use of unknown or unspecified psychoactive substance, episodic
  • 6C4G.11 – Harmful pattern of use of unknown or unspecified psychoactive substance, continuous

Foundation entity

Harmful pattern of use of unknown or unspecified psychoactive substance – http://id.who.int/icd/entity/341458101

Allowed postcoordination axes

Part of: 6C4G.1: Harmful pattern of use of unknown or unspecified psychoactive substance › 6C4G: Disorders due to use of unknown or unspecified psychoactive substances › 06: Mental, behavioural or neurodevelopmental disorders