ICD-10-CM · Chapter 2 · C00-D49
D46 Myelodysplastic syndromes
Excludes 2 (not included here)
- drug-induced aplastic anemia (D61.1)
Use Additional Code
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| D46..0 | Refractory anemia without ring sideroblasts, so stated | Yes |
| D46..1 | Refractory anemia with ring sideroblasts | Yes |
| D46..2 | Refractory anemia with excess of blasts [RAEB] | No |
| D46..20 | Refractory anemia with excess of blasts, unspecified | Yes |
| D46..21 | Refractory anemia with excess of blasts 1 | Yes |
| D46..22 | Refractory anemia with excess of blasts 2 | Yes |
| D46..A | Refractory cytopenia with multilineage dysplasia | Yes |
| D46..B | Refractory cytopenia with multilineage dysplasia and ring sideroblasts | Yes |
| D46..C | Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality | Yes |
| D46..4 | Refractory anemia, unspecified | Yes |
| D46..Z | Other myelodysplastic syndromes | Yes |
| D46..9 | Myelodysplastic syndrome, unspecified | Yes |
Last reviewed: September 2026