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E03.4

✓ Billable

Atrophy of thyroid (acquired)

Endocrine, nutritional and metabolic diseases (E00-E89)

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❌ Excludes1

direct

Cannot be coded with E03.4

  • • congenital atrophy of thyroid (E03.1)

❌ Excludes1

inherited from E03

Rules from parent category E03: Other hypothyroidism

  • • iodine-deficiency related hypothyroidism (E00-E02)
  • • postprocedural hypothyroidism (E89.0)

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Code Information

CodeE03.4
BillableYes
ParentE03
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes13 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)