D51.9 is the ICD-10 code for Vitamin B12 deficiency anaemia, unspecified. It is a four-character subcategory of D51 (Vitamin B12 deficiency anaemia), the most specific level in the WHO edition. 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
- Subcategory (4 characters)
- Chapter
- III · D50–D89
- Classification
- WHO ICD-10, 2019 version
D51.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
D51.9Uspesifisert anemi ved B12-vitaminmangel
DD519Anæmi forårsaget af vitamin B12-mangel UNS
D51.9Määrittämätön B12-vitamiininpuuteanemia
D51.9Vitamin-B
D51.9Anémie par carence en vitamine B12, sans précision
D51.9anemie door vitamine B 12-deficiëntie, niet-gespecificeerd
D51.9Vitamin B12 deficiency anemia, unspecified
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.
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