ICD-10-CM>Q00-QA1>Q80-Q89>Q89>Q89.2Q89.2Congenital malformations of other endocrine glandsBillable/Specific Copy Code Copy DescriptionApplicable ToCongenital malformation of parathyroid or thyroid glandPersistent thyroglossal ductThyroglossal cystType 1 Excludescongenital goiter (E03.0)congenital hypothyroidism (E03.1)