E03: Other hypothyroidism
Codes under E03 (Other hypothyroidism). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| E03.0 | Congenital hypothyroidism with diffuse goiter | ✓ |
| E03.0 | Congenital hypothyroidism with diffuse goiter | ✓ |
| E03.1 | Congenital hypothyroidism without goiter | ✓ |
| E03.1 | Congenital hypothyroidism without goiter | ✓ |
| E03.2 | Hypothyroidism due to medicaments and other exogenous substances | ✓ |
| E03.2 | Hypothyroidism due to medicaments and other exogenous substances | ✓ |
| E03.3 | Postinfectious hypothyroidism | ✓ |
| E03.3 | Postinfectious hypothyroidism | ✓ |
| E03.4 | Atrophy of thyroid (acquired) | ✓ |
| E03.4 | Atrophy of thyroid (acquired) | ✓ |
| E03.5 | Myxedema coma | ✓ |
| E03.5 | Myxedema coma | ✓ |
| E03.8 | Other specified hypothyroidism | ✓ |
| E03.8 | Other specified hypothyroidism | ✓ |
| E03.9 | Hypothyroidism, unspecified | ✓ |
| E03.9 | Hypothyroidism, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code E03?
E03 is an ICD-10-CM category covering Other hypothyroidism. It contains 16 more specific diagnosis codes, 16 of which are billable.
Is E03 a billable code?
No — E03 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example E03.0 — Congenital hypothyroidism with diffuse goiter). 16 of the 16 codes under E03 are billable.
What codes fall under E03?
E03 includes E03.0, E03.0, E03.1, E03.1, E03.2, plus 11 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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