E03.3
Billable codePostinfectious hypothyroidism
The ICD-10 code for postinfectious hypothyroidism is E03.3.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E03.0Congenital hypothyroidism with diffuse goiter
- E03.1Congenital hypothyroidism without goiter
- E03.2Hypothyroidism due to medicaments and other exogenous substances
- E03.4Atrophy of thyroid (acquired)
- E03.5Myxedema coma
- E03.8Other specified hypothyroidism
- E03.9Hypothyroidism, unspecified
- E03.3Postinfectious hypothyroidism
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 2448Approximate match
Associated MS-DRGs
E03.3 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.