ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.5 > T38.5X > T38.5X4 T38.5X4 Poisoning by other estrogens and progestogens, undetermined Non-Billable/Non-Specific Codes T38.5X4A..., initial encounterT38.5X4D..., subsequent encounterT38.5X4S..., sequela