E03
Header — not billableOther hypothyroidism
The ICD-10 code for other hypothyroidism is E03.
E03 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 8 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under E03
- E03.0Congenital hypothyroidism with diffuse goiter
- E03.1Congenital hypothyroidism without goiter
- E03.2Hypothyroidism due to medicaments and other exogenous substances
- E03.3Postinfectious hypothyroidism
- E03.4Atrophy of thyroid (acquired)
- E03.5Myxedema coma
- E03.8Other specified hypothyroidism
- E03.9Hypothyroidism, unspecified
Related codes in this category
- E00Congenital iodine-deficiency syndromenon-billable header
- E01Iodine-deficiency related thyroid disorders and allied conditionsnon-billable header
- E02Subclinical iodine-deficiency hypothyroidism
- E04Other nontoxic goiternon-billable header
- E05Thyrotoxicosis [hyperthyroidism]non-billable header
- E06Thyroiditisnon-billable header
- E07Other disorders of thyroidnon-billable header
- E03Other hypothyroidismnon-billable header