D51.0 — Vitamin B12 deficiency anemia due to intrinsic factor deficiency
D51.0 is a billable, specific ICD-10-CM code for vitamin b12 deficiency anemia due to intrinsic factor deficiency. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Addison anemia
- Biermer anemia
- Pernicious (congenital) anemia
- Congenital intrinsic factor deficiency
Risk adjustment
D51.0 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
D51.0 is named in 17 Medicare coverage policies — 17 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52996Billing and Coding: Routine Foot Care
- A56232Billing and Coding: Foot Care
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
How D51.0 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 D51.0.
- Addison-Biermer anemia(pernicious)
- Biermer's anemia or disease(pernicious)
- Lichtheim's disease or syndrome
- Runeberg's disease
- Addison's›anemia(pernicious)
- Anemia›Addison(-Biermer) (pernicious)
- Anemia›Biermer's(pernicious)
- Anemia›combined system disease NEC
- Anemia›cytogenic
- Anemia›malignant(progressive)
- Anemia›pernicious(congenital) (malignant) (progressive)
- Congenital›intrinsic factor deficiency
Related codes at this level
Codes that share D51. If D51.0 is not quite right, the correct code is usually one of these.
Questions about D51.0
- Is D51.0 a billable ICD-10-CM code?
- Yes. D51.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D51.0 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 Nutritional anemias (D50-D53).