Poisoning by mixed antiepileptics, undetermined, init encntr

This code signifies an adverse event resulting from exposure to multiple antiepileptic medications, where the intent (e.g., accidental, intentional self-harm) cannot be determined. The patient is in the acute phase of treatment for this poisoning.

Apply this code when a patient presents with symptoms of poisoning due to a combination of antiepileptic drugs, and the medical record does not specify whether the exposure was accidental, intentional, or due to therapeutic error. This code is appropriate for the initial visit or encounter for this specific poisoning event.

• Ensure documentation clearly states "mixed antiepileptics" and that the intent is "undetermined."
• Only use the "A" seventh character for the initial encounter for treatment of the poisoning.
• Code any associated signs, symptoms, or manifestations of the poisoning as additional diagnoses.