ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.4 > T38.4X > T38.4X4 T38.4X4 Poisoning by oral contraceptives, undetermined Non-Billable/Non-Specific Codes T38.4X4A..., initial encounterT38.4X4D..., subsequent encounterT38.4X4S..., sequela