6C41.1ICD-11 MMS 2026-01
Harmful pattern of use of cannabis
Description
A pattern of cannabis use 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 cannabis 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 (i.e., daily or almost daily). 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 cannabis intoxication on the part of the person to whom the diagnosis of Harmful pattern of use of cannabis applies.
Excludes
Exclusions from above levels
6C42– Disorders due to use of synthetic cannabinoidsQE11.1– Hazardous use of cannabisQE62– Uncomplicated bereavement
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QE84– Acute stress reaction
Child codes
Sibling codes
6C41.0– Episode of harmful use of cannabis6C41.2– Cannabis dependence6C41.3– Cannabis intoxication6C41.4– Cannabis withdrawal6C41.5– Cannabis-induced delirium6C41.6– Cannabis-induced psychotic disorder6C41.7– Certain specified cannabis-induced mental or behavioural disorders6C41.Y– Other specified disorders due to use of cannabis6C41.Z– Disorders due to use of cannabis, unspecified
Foundation entity
Harmful pattern of use of cannabis – http://id.who.int/icd/entity/937834582
Allowed postcoordination axes
Part of: 6C41: Disorders due to use of cannabis › 06: Mental, behavioural or neurodevelopmental disorders