MCMedicalCodingSoftware
D55.9

D55.9: Anemia due to enzyme disorder, unspecified

Billable / specific codeICD-10-CM

D55.9 is a billable, specific ICD-10-CM code for anemia due to enzyme disorder, unspecified. It is valid for submission on a claim.

Check D55.9 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above D55.9

A category’s note binds every code beneath it.

Written on D55: Anemia due to enzyme disorders

  • drug-induced enzyme deficiency anemia (D59.2)

Other codes that can never be billed with D55.9

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

  • E74.4Disorders of pyruvate metabolism and gluconeogenesis

Risk adjustment

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

Medicare coverage

D55.9 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56718Billing and Coding: Intravenous Immunoglobulin (IVIG)
  • A57110Billing and Coding: MolDX: Blood Product Molecular Antigen Typing
  • A57124Billing and Coding: MolDX: Blood Product Molecular Antigen Typing
  • A57155Billing and Coding: MolDX: Blood Product Molecular Antigen Typing

Alphabetic index entries that lead here

  • Anemia›deficiency›enzyme
  • Anemia›due to›enzyme disorder
  • Anemia›hemolytic›due to›enzyme disorder
  • Anemia›hemolytic›hereditary›due to enzyme disorder

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under D55

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.