D59.9 — Acquired hemolytic anemia, unspecified
D59.9 is a billable, specific ICD-10-CM code for acquired hemolytic anemia, unspecified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Idiopathic hemolytic anemia, chronic
Risk adjustment
D59.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 109 Acquired Hemolytic, Aplastic, and Sideroblastic Anemias1.144 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
D59.9 is named in 11 Medicare coverage policies — 11 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
- A56718Billing and Coding: Intravenous Immunoglobulin (IVIG)
- A57110Billing and Coding: MolDX: Blood Product Molecular Antigen Typing
- A57124Billing and Coding: MolDX: Blood Product Molecular Antigen Typing
How D59.9 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 D59.9.
- Hemoglobinemia
- Icteroanemia, hemolytic(acquired)
- Icterus›hematogenous(acquired)
- Icterus›hemolytic(acquired)
- Jaundice›hematogenous
- Jaundice›hemolytic(acquired)
- Anemia›hemolytic›acquired
- Anemia›hemolytic›acute
- Anemia›hemolytic›idiopathic(chronic)
- Anemia›idiopathic›hemolytic, chronic
- Anemia›chronic›hemolytic›idiopathic
- Anemia›hemolytic›chronic›idiopathic
Related codes at this level
Codes that share D59. If D59.9 is not quite right, the correct code is usually one of these.
- D59.0Drug-induced autoimmune hemolytic anemia
- D59.1Other autoimmune hemolytic anemias
- D59.2Drug-induced nonautoimmune hemolytic anemia
- D59.3Hemolytic-uremic syndrome
- D59.4Other nonautoimmune hemolytic anemias
- D59.5Paroxysmal nocturnal hemoglobinuria [Marchiafava-Micheli]
- D59.6Hemoglobinuria due to hemolysis from other external causes
- D59.8Other acquired hemolytic anemias
Questions about D59.9
- Is D59.9 a billable ICD-10-CM code?
- Yes. D59.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D59.9 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 Hemolytic anemias (D55-D59).