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E83.50

E83.50: Unspecified disorder of calcium metabolism

Billable / specific codeICD-10-CM

E83.50 is a billable, specific ICD-10-CM code for unspecified disorder of calcium metabolism. It is valid for submission on a claim.

Check E83.50 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E83.50

A category’s note binds every code beneath it.

Written on E83.5: Disorders of calcium metabolism

  • autoimmune hypoparathyroidism (E20.812)
  • autosomal dominant hypocalcemia (E20.810)
  • chondrocalcinosis (M11.1-M11.2)
  • hungry bone syndrome (E83.81)
  • hyperparathyroidism (E21.0-E21.3)
  • secondary hypoparathyroidism in diseases classified elsewhere (E20.811)

Written on E83: Disorders of mineral metabolism

  • dietary mineral deficiency (E58-E61)
  • parathyroid disorders (E20-E21)
  • vitamin D deficiency (E55.-)

Other codes that can never be billed with E83.50

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

  • E61Deficiency of other nutrient elements
  • R79.0Abnormal level of blood mineral

Risk adjustment

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

Medicare coverage

E83.50 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57718Billing and Coding: Vitamin D Assay Testing
  • A57736Billing and Coding: Vitamin D Assay Testing
  • A59170Billing and Coding: Vitamin D Assay Testing
  • A59186Billing and Coding: Magnesium

Alphabetic index entries that lead here

  • Calcium›metabolism disorder
  • Disorder›metabolism NOS›calcium

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E83.5

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.