6C4D.2

ICD-11 MMS 2026-01

Dissociative drug dependence including ketamine or PCP

Description

Dissociative drug dependence including ketamine or PCP is a disorder of regulation of dissociative drug use arising from repeated or continuous use of dissociative drugs. The characteristic feature is a strong internal drive to use dissociative drugs, which is manifested by impaired ability to control use, increasing priority given to use over other activities and persistence of use despite harm or negative consequences. These experiences are often accompanied by a subjective sensation of urge or craving to use dissociative drugs. The features of dependence are usually evident over a period of at least 12 months but the diagnosis may be made if dissociative drugs use is continuous (daily or almost daily) for at least 3 months.

Excludes

  • 6C4D.0 – Episode of harmful use of dissociative drugs including ketamine or PCP
  • 6C4D.1 – Harmful pattern of use of dissociative drugs, including ketamine or PCP

Exclusions from above levels

  • QE11.7 – Hazardous use of dissociative drugs including ketamine or PCP
  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6C4D.20 – Dissociative drug dependence including Ketamine or PCP, current use
  • 6C4D.21 – Dissociative drug dependence including ketamine or PCP, early full remission
  • 6C4D.22 – Dissociative drug dependence including Ketamine or PCP, sustained partial remission
  • 6C4D.23 – Dissociative drug dependence including Ketamine or PCP, sustained full remission
  • 6C4D.2Z – Dissociative drug dependence including ketamine or PCP, unspecified

Sibling codes

  • 6C4D.0 – Episode of harmful use of dissociative drugs including ketamine or PCP
  • 6C4D.1 – Harmful pattern of use of dissociative drugs, including ketamine or PCP
  • 6C4D.3 – Dissociative drug intoxication including Ketamine or PCP
  • 6C4D.4 – Dissociative drug-induced delirium including ketamine or PCP
  • 6C4D.5 – Dissociative drug-induced psychotic disorder including ketamine or PCP
  • 6C4D.6 – Certain specified dissociative drug-induced mental or behavioural disorders, including ketamine or phencyclidine (PCP)
  • 6C4D.Y – Other specified disorders due to use of dissociative drugs including ketamine or phencyclidine (PCP)
  • 6C4D.Z – Disorders due to use of dissociative drugs including ketamine or phencyclidine (PCP), unspecified

Foundation entity

Dissociative drug dependence including ketamine or PCP – http://id.who.int/icd/entity/1177354811

Allowed postcoordination axes

Part of: 6C4D: Disorders due to use of dissociative drugs including ketamine or phencyclidine (PCP) › 06: Mental, behavioural or neurodevelopmental disorders