ICD-10-CM · Chapter 3 · D50-D89
D51 Vitamin B12 deficiency anemia
Excludes 2 (not included here)
- deficiency of other B group vitamins (E53-)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| D51..0 | Vitamin B12 deficiency anemia due to intrinsic factor deficiency | Yes |
| D51..1 | Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria | Yes |
| D51..2 | Transcobalamin II deficiency | Yes |
| D51..3 | Other dietary vitamin B12 deficiency anemia | Yes |
| D51..8 | Other vitamin B12 deficiency anemias | Yes |
| D51..9 | Vitamin B12 deficiency anemia, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category D51:
- Pernicious Anemia — Anemia perniciosa
Last reviewed: September 2026