ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.2 > T38.2X > T38.2X4 T38.2X4 Poisoning by antithyroid drugs, undetermined Non-Billable/Non-Specific Codes T38.2X4A..., initial encounterT38.2X4D..., subsequent encounterT38.2X4S..., sequela