ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.2 > T38.2X > T38.2X5 T38.2X5 Adverse effect of antithyroid drugs Non-Billable/Non-Specific Codes T38.2X5A..., initial encounterT38.2X5D..., subsequent encounterT38.2X5S..., sequela