D46Myelodysplastic syndromes
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use D46 directly
Use the most specific code supported by the record.
- Chapter II
- Neoplasms
- Group D37-D48
- Neoplasms of uncertain or unknown behaviour
- Official Vietnamese name
- Hội chứng loạn sản tủy xương
- Additional WHO coding guidance
- Incl.: Alkylating-agent- related myelodysplastic syndrome Epipodophyllotoxin- related myelodysplastic syndrome Therapy-related myelodysplastic syndrome NOS Excl.: drug induced aplastic anaemia (D61.1)
Related D46 codes
D46.0
Primary diagnosis candidate
Refractory anaemia without ring sideroblasts, so stated
D46.1
Primary diagnosis candidate
Refractory anaemia with ring sideroblasts
D46.2
Primary diagnosis candidate
Refractory anaemia with excess of blasts [RAEB]
D46.4
Primary diagnosis candidate
Refractory anaemia, unspecified
D46.5
Primary diagnosis candidate
Refractory anaemia with multi-lineage dysplasia
D46.6
Primary diagnosis candidate
Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality
D46.7
Primary diagnosis candidate
Other myelodysplastic syndromes
D46.9
Primary diagnosis candidate
Myelodysplastic syndrome, unspecified
Clinical record checklist
View coding guide →- Confirm that the code matches the final documented diagnosis.
- Use one primary-diagnosis code and record only relevant additional conditions.
- Review Ministry indicators, inclusions, exclusions and notes.
- Do not infer a diagnosis beyond the clinical record.
2026 regulatory basis
Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.
