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E05.90

E05.90: Thyrotoxicosis, unspecified without thyrotoxic crisis or storm

Billable / specific codeICD-10-CM

E05.90 is a billable, specific ICD-10-CM code for thyrotoxicosis, unspecified without thyrotoxic crisis or storm. It is valid for submission on a claim.

Check E05.90 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E05.90

A category’s note binds every code beneath it.

Written on E05: Thyrotoxicosis [hyperthyroidism]

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

Risk adjustment

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

Medicare coverage

E05.90 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A57029Billing and Coding: Ultrasound, Soft Tissues of Head and Neck
  • A57361Billing and Coding: Monitored Anesthesia Care
  • A57657Billing and Coding: Sedimentation Rate, Erythrocyte

Alphabetic index entries that lead here

  • Hyperthyroidism(latent) (pre-adult) (recurrent)
  • Thyrotoxicosis(recurrent)
  • Cardiomyopathy›thyrotoxic
  • Myocardiopathy›thyrotoxic
  • Myxedema›circumscribed
  • Myxedema›localized(pretibial)
  • Syndrome›Leopold-Levi's
  • Thyrotoxic›heart disease or failure
  • Thyrotoxicosis›heart
  • Arthropathy›in›hyperthyroidism
  • Arthropathy›in›thyrotoxicosis
  • Cardiomyopathy›metabolic›thyrotoxic

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E05.9

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.