D51
Non-billableVitamin B12 deficiency anemia
Vitamin B12 deficiency anemia
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •autoimmune disease (systemic) NOSM35.9
- •certain conditions originating in the perinatal periodP00-P96
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •human immunodeficiency virus [HIV] diseaseB20
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Child Codes (6)
D51.0Vitamin B12 defic anemia due to intrinsic factor deficiency
D51.1Vit B12 defic anemia d/t slctv vit B12 malabsorp w protein
D51.2Transcobalamin II deficiency
D51.3Other dietary vitamin B12 deficiency anemia
D51.8Other vitamin B12 deficiency anemias
D51.9Vitamin B12 deficiency anemia, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(17)
UMLS
- Anaemia B twelve deficiencyC2004521
- Anaemia B12 deficiencyC2004521
- Anaemia cobalamin deficiencyC2004521
- Anaemia vitamin B12 deficiencyC2004521
- Anemia B12 deficiencyC2004521
- Anemia cobalamin deficiencyC2004521
- Anemia vitamin B12 deficiencyC2004521
- B12 deficiency anaemiaC2004521
- B12 deficiency anemiaC2004521
- Vitamin B12 Deficiency Anemia, UnspecifiedC2004521
- Vitamin B12 deficiency anaemiaC2004521
- Vitamin B12 deficiency anemiaC2004521
- Vitamin B12 deficiency anemia, unspecifiedC2004521
- Vitamin B<sub>12</sub> deficiency anaemiaC2004521
- Vitamin B<sub>12</sub> deficiency anemiaC2004521
- Vitamin B>12< deficiency anaemiaC2004521
- Vitamin B>12< deficiency anemiaC2004521
Frequently Asked Questions
What is the ICD-10 code for vitamin b12 deficiency anemia?
The ICD-10-CM code for vitamin b12 deficiency anemia is D51. The full clinical description is "Vitamin B12 deficiency anemia". D51 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code D51 mean?
ICD-10-CM code D51 represents “Vitamin B12 deficiency anemia”. It is classified under Chapter 3: Diseases of the Blood and Blood-Forming Organs and is a non-billable header code. Use a more specific child code for billing purposes.
Is D51 a billable code?
No, D51 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under D51.
What chapter is D51 in?
D51 is in Chapter 3: Diseases of the Blood and Blood-Forming Organs (codes D50-D89).
What codes cannot be used with D51?
D51 has Excludes1 notes indicating codes that cannot be used together with it, including: vitamin B12 deficiency (E53.8).
What are the subcategories under D51?
D51 has 6 child codes, including: D51.0 (Vitamin B12 defic anemia due to intrinsic factor deficiency), D51.1 (Vit B12 defic anemia d/t slctv vit B12 malabsorp w protein), D51.2 (Transcobalamin II deficiency), D51.3 (Other dietary vitamin B12 deficiency anemia), and 2 more.
What are the UMLS CUIs for D51?
D51 is linked to 1 UMLS Concept Unique Identifier: C2004521. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does D51 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like vitamin b12 deficiency anemia affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of D51?
D51 maps to the ICD-11 code: 3A01.Z (Megaloblastic anaemia due to vitamin B12 deficiency, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.