Poisoning by cannabis, undetermined, initial encounter

This code signifies a case of poisoning resulting from cannabis use where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined by the clinician. The patient is experiencing adverse effects directly attributable to cannabis exposure, and this is the first time they are being treated for this specific poisoning episode.

Apply this code when a patient presents with symptoms of cannabis intoxication or adverse reaction, and the medical record explicitly states that the intent of the exposure is unknown or undetermined. This is appropriate for the initial visit or encounter for this particular poisoning event.

• Ensure documentation clearly states "undetermined" intent for cannabis poisoning.
• Do not use if intent (accidental, intentional, assault) is specified in the medical record.
• Always append the appropriate seventh character for subsequent encounters (D) or sequela (S).