Poisoning by methamphetamines, assault, initial encounter

This code signifies an adverse health effect resulting from methamphetamine exposure, specifically when the substance was administered with malicious intent by another party. The "initial encounter" indicates the patient is actively receiving treatment for the acute effects of this poisoning.

Apply this code when a patient presents with symptoms of methamphetamine toxicity, and medical documentation clearly states the substance was given to them against their will or without their knowledge, constituting an assault. This is appropriate for the initial visit where the poisoning is diagnosed and treatment begins.

• Ensure documentation explicitly states "assault" or similar intent for methamphetamine administration.
• Confirm this is the first time the patient is being seen for this specific poisoning event.
• Do not use for accidental or self-inflicted methamphetamine poisoning.