MCMCB Pro
D57.432

D57.432Sickle-cell thalassemia beta zero with splenic sequestration

Billable / specific codeICD-10-CM

D57.432 is a billable, specific ICD-10-CM code for sickle-cell thalassemia beta zero with splenic sequestration. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • HbS-beta zero with splenic sequestration
  • Sickle-cell beta zero with splenic sequestration

Risk adjustment

D57.432 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 107 Sickle Cell Anemia (Hb-SS) and Thalassemia Beta Zero0.457 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

D57.432 is named in 13 Medicare coverage policies 13 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
  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A56464Billing and Coding: Flow Cytometry
  • A56697Billing and Coding: Non-Invasive Vascular Studies

How D57.432 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 D57.432.

  • Disease, diseasedhemoglobin or HbS or SSbeta zerowithsplenic sequestration
  • Disease, diseasedsickle-cellthalassemiabeta zerowithsplenic sequestration

Related codes at this level

Codes that share D57.43. If D57.432 is not quite right, the correct code is usually one of these.

Questions about D57.432

Is D57.432 a billable ICD-10-CM code?
Yes. D57.432 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D57.432 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 Hemolytic anemias (D55-D59).
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.