Harmful pattern of use of cannabis

Definition

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.

Exclusions

• Cannabis dependence (6C41.2)
• Episode of harmful use of cannabis (6C41.0)

3 subordinate codes

• 6C41.10Harmful pattern of use of cannabis, episodic
• 6C41.11Harmful pattern of use of cannabis, continuous
• 4B4ZDiseases of the immune system, unspecified

Nearby in Disorders due to use of cannabis

• 6C41.0Episode of harmful use of cannabis
• 6C41.2Cannabis dependence
• 6C41.3Cannabis intoxication
• 6C41.4Cannabis withdrawal
• 6C41.5Cannabis-induced delirium
• 6C41.6Cannabis-induced psychotic disorder
• 6C41.7Certain specified cannabis-induced mental or behavioural disorders
• 4B4YOther specified diseases of the immune system