D51 is the ICD-10 code for Vitamin B12 deficiency anaemia. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block D50–D53 (Nutritional anaemias) in Chapter III, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
- Code type
- Category (3 characters)
- Chapter
- III · D50–D89
- Classification
- WHO ICD-10, 2019 version
What D51 excludes
Conditions that look similar but belong under another code.
- Vitamin B12 deficiency E53.8
Subcodes of D51
- D51.0Vitamin B12 deficiency anaemia due to intrinsic factor deficiency
- D51.1Vitamin B12 deficiency anaemia due to selective vitamin B12 malabsorption with proteinuria
- D51.2Transcobalamin II deficiency
- D51.3Other dietary vitamin B12 deficiency anaemia
- D51.8Other vitamin B12 deficiency anaemias
- D51.9Vitamin B12 deficiency anaemia, unspecified
D51 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DD51Anæmi forårsaget af vitamin B12-mangel
D51B12-vitamiininpuuteanemia
D51Vitamin-B
D51Anémie par carence en vitamine B12
D51anemie door vitamine B12-deficiëntie
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free