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E05.3

⚠ Non-billable (Header)

Thyrotoxicosis from ectopic thyroid tissue

Endocrine, nutritional and metabolic diseases (E00-E89)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited from E05

Rules from parent category E05: Thyrotoxicosis [hyperthyroidism]

  • • chronic thyroiditis with transient thyrotoxicosis (E06.2)
  • • neonatal thyrotoxicosis (P72.1)

Child Codes (2)

E05.30Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or stormE05.31Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm

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Code Information

CodeE05.3
BillableNo — Header code
ParentE05
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes12 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)