Poisoning by antiallerg/antiemetic, self-harm, subs

This code signifies a patient presenting with adverse effects from intentionally self-administering antiallergic or antiemetic medications with the intent to harm themselves. The patient is being seen for follow-up care, treatment of complications, or recovery from the initial poisoning event.

Use this code for subsequent encounters when a patient is receiving ongoing treatment for an overdose of antihistamines, anti-nausea drugs, or similar medications, where the overdose was a deliberate act of self-harm. This includes visits for managing organ damage, psychological support, or monitoring recovery after initial stabilization.

• Ensure the documentation clearly states the poisoning was intentional self-harm and the encounter is not the initial treatment.
• Always code the specific drug(s) involved if known, using additional codes from categories T36-T50.
• Consider an additional code for the patient's underlying mental health condition, such as depression or anxiety, if documented.