D55.0 — Anemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiency
D55.0 is a billable, specific ICD-10-CM code for anemia due to glucose-6-phosphate dehydrogenase [g6pd] deficiency. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- glucose-6-phosphate dehydrogenase (G6PD) deficiency without anemia (D75.A)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Favism
- G6PD deficiency anemia
Other codes that can never be billed with D55.0
These codes carry an Excludes1 note pointing at D55.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D55.0 alone.
- D75.AGlucose-6-phosphate dehydrogenase (G6PD) deficiency without anemia
Risk adjustment
D55.0 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
D55.0 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- 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
How D55.0 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 D55.0.
- Favism(anemia)
- Anemia›Baghdad spring
- Anemia›favism
- Anemia›glucose-6-phosphate dehydrogenase deficiency(G6PD)
- Poisoning›fava bean
- Toxicity›fava bean
- Anemia›deficiency›G6PD
- Anemia›deficiency›glucose-6-phosphate dehydrogenase
- Deficiency, deficient›glucose-6-phosphate dehydrogenase›anemia
- Anemia›deficiency›enzyme›glucose-6-phosphate dehydrogenase(G6PD)
- Anemia›hemolytic›nonspherocytic›congenital or hereditary NEC›glucose-6-phosphate dehydrogenase deficiency
Related codes at this level
Codes that share D55. If D55.0 is not quite right, the correct code is usually one of these.
Questions about D55.0
- Is D55.0 a billable ICD-10-CM code?
- Yes. D55.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D55.0 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).
- What cannot be coded together with D55.0?
- D55.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.