6C4E

ICD-11 MMS 2026-01

Disorders due to use of other specified psychoactive substances, including medications

Description

Disorders due to use of other specified psychoactive substances, including medications are characterised by the pattern and consequences of psychoactive substances that are not included among the major substance classes specifically identified. Examples include khat, antidepressants, medications with anticholinergic properties (e.g., benztropine), and some antihistamines.

Excludes

  • 6D72.12 – Amnestic disorder due to other specified psychoactive substance including medications

Exclusions from above levels

  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6C4E.0 – Episode of harmful use of other specified psychoactive substance
  • 6C4E.1 – Harmful pattern of use of other specified psychoactive substance
  • 6C4E.2 – Other specified psychoactive substance dependence
  • 6C4E.3 – Other specified psychoactive substance intoxication
  • 6C4E.4 – Other specified psychoactive substance withdrawal
  • 6C4E.5 – Delirium induced by other specified psychoactive substance including medications
  • 6C4E.6 – Psychotic disorder induced by other specified psychoactive substance
  • 6C4E.7 – Certain other specified psychoactive substance-induced mental or behavioural disorders
  • 6C4E.Y – Other specified disorders due to use of other specified psychoactive substances, including medications
  • 6C4E.Z – Disorders due to use of other specified psychoactive substances, including medications, unspecified

Sibling codes

  • 6C40 – Disorders due to use of alcohol
  • 6C41 – Disorders due to use of cannabis
  • 6C42 – Disorders due to use of synthetic cannabinoids
  • 6C43 – Disorders due to use of opioids
  • 6C44 – Disorders due to use of sedatives, hypnotics or anxiolytics
  • 6C45 – Disorders due to use of cocaine
  • 6C46 – Disorders due to use of stimulants including amphetamines, methamphetamine or methcathinone
  • 6C47 – Disorders due to use of synthetic cathinones
  • 6C48 – Disorders due to use of caffeine
  • 6C49 – Disorders due to use of hallucinogens
  • 6C4A – Disorders due to use of nicotine
  • 6C4B – Disorders due to use of volatile inhalants
  • 6C4C – Disorders due to use of methylene-dioxymethamphetamine [MDMA] or related drugs, including methylene-dioxyamphetamine [MDA]
  • 6C4D – Disorders due to use of dissociative drugs including ketamine or phencyclidine (PCP)
  • 6C4F – Disorders due to use of multiple specified psychoactive substances, including medications
  • 6C4G – Disorders due to use of unknown or unspecified psychoactive substances
  • 6C4H – Disorders due to use of non-psychoactive substances
  • 6C4Y – Other specified disorders due to substance use
  • 6C4Z – Disorders due to substance use, unspecified

Foundation entity

Disorders due to use of other specified psychoactive substances, including medications – http://id.who.int/icd/entity/136511187

Allowed postcoordination axes

Part of: 06: Mental, behavioural or neurodevelopmental disorders