Poisoning by unsp psychodysleptics, undetermined, init

This code signifies an accidental or intentional poisoning event involving a hallucinogenic substance where the specific type of hallucinogen is unknown. The "undetermined" nature indicates that it's unclear whether the poisoning was accidental, intentional self-harm, or assault. This is the initial encounter for this specific poisoning event.

Use this code for a patient presenting with symptoms of hallucinogen intoxication or overdose when the specific drug cannot be identified through patient history, toxicology screens, or other diagnostic methods. It is appropriate for the first time a patient is seen for this particular poisoning episode, regardless of the setting (e.g., emergency department, inpatient admission).

• Ensure documentation clearly states "undetermined" intent when the circumstances of the poisoning are not definitively known.
• Only use the "initial encounter" seventh character for the first time the patient receives active treatment for this specific poisoning.
• If the specific hallucinogen is later identified, a more precise code should be used.