Poisoning by unsp psychodysleptics, self-harm, subs

This code signifies a patient presenting with adverse effects from intentionally self-administering an unspecified hallucinogenic substance. The encounter is a follow-up visit after the initial treatment for the poisoning.

Apply this code when documenting subsequent care for a patient who deliberately poisoned themselves with a hallucinogen, and the specific substance is not identified. This would include follow-up appointments for ongoing management of complications or psychiatric evaluation post-acute care.

• Ensure documentation clearly states "intentional self-harm" and that the substance is an unspecified hallucinogen.
• Confirm this is a subsequent encounter, not the initial presentation for the poisoning.
• Always sequence this code after any codes for the specific manifestations of the poisoning.