ICD-10-CM > S00-T88 > T36-T50 > T42 > T42.7 T42.7 Poisoning by, adverse effect of and underdosing of unspecified antiepileptic and sedative-hypnotic drugs Non-Billable/Non-Specific Codes T42.71Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional)T42.71XA..., initial encounterT42.71XD..., subsequent encounterT42.71XS..., sequelaT42.72Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, intentional self-harmT42.72XA..., initial encounterT42.72XD..., subsequent encounterT42.72XS..., sequelaT42.73Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, assaultT42.73XA..., initial encounterT42.73XD..., subsequent encounterT42.73XS..., sequelaT42.74Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, undeterminedT42.74XA..., initial encounterT42.74XD..., subsequent encounterT42.74XS..., sequelaT42.75Adverse effect of unspecified antiepileptic and sedative-hypnotic drugsT42.75XA..., initial encounterT42.75XD..., subsequent encounterT42.75XS..., sequelaT42.76Underdosing of unspecified antiepileptic and sedative-hypnotic drugsT42.76XA..., initial encounterT42.76XD..., subsequent encounterT42.76XS..., sequela