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QE11.9 Hazardous use of unknown or unspecified psychoactive substances

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

A pattern of use of unknown or unspecified psychoactive substances that appreciably increases the risk of harmful physical or mental health consequences to the user or to others to an extent that warrants attention and advice from health professionals. The increased risk may be from the frequency of use of the substance, from the amount used on a given occasion, from risky behaviours associated with use of the substance or the context of use, from a harmful route of administration, or from a combination of these. The risk may be related to short-term effects of the unknown or unspecified substance or to longer-term cumulative effects on physical or mental health or functioning. Hazardous use of unknown or unspecified psychoactive substances has not yet reached the level of having caused harm to physical or mental health of the user or others around the user. The pattern of substance use often persists in spite of awareness of increased risk of harm to the user or to others.

exclusions

• Disorders due to use of unknown or unspecified psychoactive substances  (6C4G)

synonyms

• Hazardous use of unknown or unspecified psychoactive substances

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