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E02

E02: Subclinical iodine-deficiency hypothyroidism

Billable / specific codeICD-10-CM

E02 is a billable, specific ICD-10-CM code for subclinical iodine-deficiency hypothyroidism. It is valid for submission on a claim.

Check E02 with the rest of the claim: free scrubber

Other codes that can never be billed with E02

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • E61Deficiency of other nutrient elements
  • E00Congenital iodine-deficiency syndrome
  • E01Iodine-deficiency related thyroid disorders and allied conditions
  • E03Other hypothyroidism
  • E04Other nontoxic goiter

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E02 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57326Billing and Coding: Electrocardiograms
  • A57361Billing and Coding: Monitored Anesthesia Care

Alphabetic index entries that lead here

  • Hypothyroidism›subclinical, iodine-deficiency related
  • Hypothyroidism›iodine-deficiency›subclinical
  • Hypothyroidism›due to›iodine-deficiency, acquired›subclinical

Code history

Unchanged in every release from FY2024 to FY2027.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.