ICD-10-CM > S00-T88 > T36-T50 > T42 > T42.7 > T42.75 T42.75 Adverse effect of unspecified antiepileptic and sedative-hypnotic drugs Non-Billable/Non-Specific Codes T42.75XA..., initial encounterT42.75XD..., subsequent encounterT42.75XS..., sequela