ICD-10-CM · Chapter 3 · D50–D89
D51
Vitamin B12 deficiency anemia
Diseases of the blood and immune mechanism
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- D51
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 3 — Diseases of the blood and immune mechanism
- Category
- D51
- Specificity
- 3 characters
How coders use this code
ICD-10-CM D51 is a category (header) for vitamin b12 deficiency anemia. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in D51
- D51.0Vitamin B12 deficiency anemia due to intrinsic factor deficiency
- D51.1Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria
- D51.2Transcobalamin II deficiency
- D51.3Other dietary vitamin B12 deficiency anemia
- D51.8Other vitamin B12 deficiency anemias
- D51.9Vitamin B12 deficiency anemia, unspecified
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