ICD-10-CM category
D46: Myelodysplastic syndromes
Codes under D46 (Myelodysplastic syndromes). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| D46.0 | Refractory anemia without ring sideroblasts, so stated | ✓ |
| D46.1 | Refractory anemia with ring sideroblasts | ✓ |
| D46.2 | Refractory anemia with excess of blasts [RAEB] | — |
| D46.4 | Refractory anemia, unspecified | ✓ |
| D46.9 | Myelodysplastic syndrome, unspecified | ✓ |
| D46.20 | Refractory anemia with excess of blasts, unspecified | ✓ |
| D46.21 | Refractory anemia with excess of blasts 1 | ✓ |
| D46.22 | Refractory anemia with excess of blasts 2 | ✓ |
| D46.A | Refractory cytopenia with multilineage dysplasia | ✓ |
| D46.B | Refractory cytopenia with multilineage dysplasia and ring sideroblasts | ✓ |
| D46.C | Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality | ✓ |
| D46.Z | Other myelodysplastic syndromes | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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