6C46.1

ICD-11 MMS 2026-01

Harmful pattern of use of stimulants including amphetamines, methamphetamine or methcathinone

Description

A pattern of use of stimulants including amphetamines, methamphetamine and methcathinone but excluding caffeine, cocaine and synthetic cathinones that has caused damage to a person’s physical or mental health or has resulted in behaviour leading to harm to the health of others. The pattern of stimulant use is evident over a period of at least 12 months if substance use is episodic or at least one month if use is continuous. Harm to health of the individual occurs due to one or more of the following: (1) behaviour related to intoxication; (2) direct or secondary toxic effects on body organs and systems; or (3) a harmful route of administration. Harm to health of others includes any form of physical harm, including trauma, or mental disorder that is directly attributable to behaviour related to stimulant intoxication on the part of the person to whom the diagnosis of Harmful pattern of use of stimulants including amphetamines, methamphetamine and methcathinone applies.

Excludes

  • 6C45.1 – Harmful pattern of use of cocaine
  • 6C46.0 – Episode of harmful use of stimulants including amphetamines, methamphetamine or methcathinone
  • 6C46.2 – Stimulant dependence including amphetamines, methamphetamine or methcathinone
  • 6C47.1 – Harmful pattern of use of synthetic cathinones
  • 6C48.1 – Harmful pattern of use of caffeine

Exclusions from above levels

  • 6C45 – Disorders due to use of cocaine
  • 6C47 – Disorders due to use of synthetic cathinones
  • 6C48 – Disorders due to use of caffeine
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  • QE11.4 – Hazardous use of stimulants including amphetamines or methamphetamine
  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6C46.10 – Harmful pattern of use of stimulants including amphetamines, methamphetamine or methcathinone, episodic
  • 6C46.11 – Harmful pattern of use of stimulants including amphetamines, methamphetamine or methcathinone, continuous
  • 6C46.1Z – Harmful pattern of use of stimulants including amphetamines, methamphetamine and methcathinone, unspecified

Sibling codes

  • 6C46.0 – Episode of harmful use of stimulants including amphetamines, methamphetamine or methcathinone
  • 6C46.2 – Stimulant dependence including amphetamines, methamphetamine or methcathinone
  • 6C46.3 – Stimulant intoxication including amphetamines, methamphetamine or methcathinone
  • 6C46.4 – Stimulant withdrawal including amphetamines, methamphetamine or methcathinone
  • 6C46.5 – Stimulant-induced delirium including amphetamines, methamphetamine or methcathinone
  • 6C46.6 – Stimulant-induced psychotic disorder including amphetamines, methamphetamine or methcathinone
  • 6C46.7 – Certain specified stimulant-induced mental or behavioural disorders including amphetamines, methamphetamine or methcathinone
  • 6C46.Y – Other specified disorders due to use of stimulants including amphetamines, methamphetamine or methcathinone
  • 6C46.Z – Disorders due to use of stimulants including amphetamines, methamphetamine or methcathinone, unspecified

Foundation entity

Harmful pattern of use of stimulants including amphetamines, methamphetamine or methcathinone – http://id.who.int/icd/entity/211765524

Allowed postcoordination axes

Part of: 6C46: Disorders due to use of stimulants including amphetamines, methamphetamine or methcathinone › 06: Mental, behavioural or neurodevelopmental disorders