ICD-10-CM > S00-T88 > S10-S19 > S11 > S11.1 > S11.15 S11.15 Open bite of thyroid gland Non-Billable/Non-Specific Applicable To Bite of thyroid gland NOS Codes S11.15XA..., initial encounterS11.15XD..., subsequent encounterS11.15XS..., sequela