E03.1
ICD-10BillableCongenital hypothyroidism without goiter
Official ICD-10-CM descriptor (FY2026)
Congenital hypothyroidism without goiter
E03.1 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Aplasia of thyroid (with myxedema)
- Congenital atrophy of thyroid
- Congenital hypothyroidism NOS
Related codes in E03
Where this code sits
- Parent code
- E03
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.