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	✓
E03.1	Congenital hypothyroidism without goiter	✓
E03.2	Hypothyroidism due to medicaments and other exogenous substances	✓
E03.3	Postinfectious hypothyroidism	✓
E03.4	Atrophy of thyroid (acquired)	✓
E03.5	Myxedema coma	✓
E03.8	Other specified hypothyroidism	✓
E03.9	Hypothyroidism, unspecified	✓

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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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