6C4G.5

ICD-11 MMS 2026-01

Delirium induced by unknown or unspecified psychoactive substance

Description

Delirium induced by unknown or unspecified psychoactive substance is characterised by an acute state of disturbed attention and awareness with specific features of delirium that develops during or soon after substance intoxication or withdrawal or during the use of an unknown or unspecified substance. The symptoms are not better explained by a primary mental disorder, by use of or withdrawal from another substance, or by another health condition that is not classified under Mental, behavioural and neurodevelopmental disorders.

Index terms

  • Delirium induced by unknown or unspecified psychoactive substance

Exclusions from above levels

  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Sibling codes

  • 6C4G.0 – Episode of harmful use of unknown or unspecified psychoactive substances
  • 6C4G.1 – Harmful pattern of use of unknown or unspecified psychoactive substance
  • 6C4G.2 – Unknown or unspecified psychoactive substance dependence
  • 6C4G.3 – Intoxication due to unknown or unspecified psychoactive substance
  • 6C4G.4 – Withdrawal due to unknown or unspecified psychoactive substance
  • 6C4G.6 – Psychotic disorder induced by unknown or unspecified psychoactive substance
  • 6C4G.7 – Certain unknown or unspecified psychoactive substance-induced mental or behavioural disorders
  • 6C4G.Y – Other specified disorders due to use of unknown or unspecified psychoactive substances
  • 6C4G.Z – Disorders due to use of unknown or unspecified psychoactive substances, unspecified

Foundation entity

Delirium induced by unknown or unspecified psychoactive substance – http://id.who.int/icd/entity/131545543

Allowed postcoordination axes

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