Poisoning by cannabis, self-harm, initial encounter

This code signifies a patient presenting with adverse effects resulting from the deliberate ingestion, inhalation, or other administration of cannabis with the intent to cause self-harm. This includes acute intoxication, overdose, or other toxic reactions directly attributable to cannabis use in a suicidal or self-injurious context.

Apply this code when documentation clearly indicates that a patient intentionally used cannabis to harm themselves, and this is their first presentation for this specific poisoning event. This would be appropriate for emergency department visits or initial inpatient admissions following such an incident.

• Always verify the intent of self-harm; if accidental or recreational, a different code is required.
• Ensure "initial encounter" is appropriate; subsequent care for the same poisoning event would use a different encounter character.
• Code any associated mental health conditions or injuries separately.