T38.1X1 - Poisoning by thyroid hormones and substitutes, accidental (unintentional) T38.1 - Poisoning by, adverse effect of and underdosing of thyroid hormones and substitutes T38.1X - Poisoning by, adverse effect of and underdosing of thyroid hormones and substitutes T38.1X1 - Poisoning by thyroid hormones and substitutes, accidental (unintentional)