D51.9 Vitamin B12 deficiency anemia, unspecified
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Vitamin B12 deficiency anemia, unspecified
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes2
Not part of this code, but both can be coded when both are documented.
- deficiency of other B group vitamins (E53-)
Related codes
D51.0Vitamin B12 deficiency anemia due to intrinsic factor deficiency ICD-10-CMD51.1Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria ICD-10-CMD51.2Transcobalamin II deficiency ICD-10-CMD51.3Other dietary vitamin B12 deficiency anemia ICD-10-CMD51.8Other vitamin B12 deficiency anemias ICD-10-CM
Common questions
Is D51.9 a billable code?
Yes. D51.9 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.