D46 is the ICD-10 code for Myelodysplastic syndromes. It is a three-character category divided into 8 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block D37–D48 (Neoplasms of uncertain or unknown behaviour) in Chapter II, Neoplasms.
- Code type
- Category (3 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
What D46 includes
Conditions and terms that are coded here.
- Alkylating-agent-related myelodysplastic syndrome
- Epipodophyllotoxin-related myelodysplastic syndrome
- Therapy-related myelodysplastic syndrome NOS
What D46 excludes
Conditions that look similar but belong under another code.
- drug induced aplastic anaemia D61.1
Subcodes of D46
- D46.0Refractory anaemia without ring sideroblasts, so stated
- D46.1Refractory anaemia with ring sideroblasts
- D46.2Refractory anaemia with excess of blasts [RAEB]
- D46.4Refractory anaemia, unspecified
- D46.5Refractory anaemia with multi-lineage dysplasia
- D46.6Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality
- D46.7Other myelodysplastic syndromes
- D46.9Myelodysplastic syndrome, unspecified
D46 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DD46Myelodysplastiske syndromer
D46Myelodysplastiset oireyhtymät
- D46.3Transformoituva refraktaarinen anemia
D46Myelodysplastische Syndrome
D46Syndromes myélodysplasiques
D46myelodysplastisch syndroom
Listed through more specific codes:
- D46.ARefractory cytopenia with multilineage dysplasia
- D46.BRefractory cytopenia with multilineage dysplasia and ring sideroblasts
- D46.CMyelodysplastic syndrome with isolated del(5q) chromosomal abnormality
- D46.ZOther myelodysplastic syndromes
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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