MCMCB Pro
D75.9

D75.9Disease of blood and blood-forming organs, unspecified

Billable / specific codeICD-10-CM

D75.9 is a billable, specific ICD-10-CM code for disease of blood and blood-forming organs, unspecified. It is valid for submission on a claim.

Risk adjustment

D75.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

D75.9 is named in 15 Medicare coverage policies 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56199Billing and Coding: Molecular Pathology Procedures
  • A56199Billing and Coding: Molecular Pathology Procedures
  • A56199Billing and Coding: Molecular Pathology Procedures

How D75.9 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D75.9.

  • Blood-forming organs, disease
  • Cytopenia
  • Leukoerythroblastosis
  • Blooddisease
  • Blooddyscrasia
  • Disease, diseasedblood
  • Disease, diseasedbone-marrow
  • Disease, diseasedhematopoietic organs
  • Disorderblood
  • Disorderhematological
  • Disorderhematopoietic organs
  • Dyscrasiablood(with)

Related codes at this level

Codes that share D75. If D75.9 is not quite right, the correct code is usually one of these.

Questions about D75.9

Is D75.9 a billable ICD-10-CM code?
Yes. D75.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D75.9 sit in the tabular list?
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Other disorders of blood and blood-forming organs (D70-D77).
ICD-10-CMFY2026-Apr· effective April 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.