ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.9 > T38.99 > T38.994 T38.994 Poisoning by other hormone antagonists, undetermined Non-Billable/Non-Specific Codes T38.994A..., initial encounterT38.994D..., subsequent encounterT38.994S..., sequela