T42.71 - Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional) T42.7 - Poisoning by, adverse effect of and underdosing of unspecified antiepileptic and sedative-hypnotic drugs T42.71 - Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional)