MCMedicalCodingSoftware
E83.40

E83.40: Disorders of magnesium metabolism, unspecified

Billable / specific codeICD-10-CM

E83.40 is a billable, specific ICD-10-CM code for disorders of magnesium metabolism, unspecified. It is valid for submission on a claim.

Check E83.40 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E83.40

A category’s note binds every code beneath it.

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 E83.40

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

E83.40 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57122Billing and Coding: Parathormone (Parathyroid Hormone)
  • A59186Billing and Coding: Magnesium

Alphabetic index entries that lead here

  • Disorder›metabolism NOS›magnesium

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E83.4

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.