| D46 | Myelodysplastic syndromes | NON-BILLABLE CODE |
| D46.0 | Refractory anemia without ring sideroblasts, so stated | BILLABLE CODE |
| D46.1 | Refractory anemia with ring sideroblasts | BILLABLE CODE |
| D46.2 | Refractory anemia with excess of blasts [RAEB] | NON-BILLABLE CODE |
| D46.20 | Refractory anemia with excess of blasts, unspecified | BILLABLE CODE |
| D46.21 | Refractory anemia with excess of blasts 1 | BILLABLE CODE |
| D46.22 | Refractory anemia with excess of blasts 2 | BILLABLE CODE |
| D46.9 | Myelodysplastic syndrome, unspecified | BILLABLE CODE |
| D46.A | Refractory cytopenia with multilineage dysplasia | BILLABLE CODE |
| D46.B | Refractory cytopenia with multilineage dysplasia and ring sideroblasts | BILLABLE CODE |
| D46.C | Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality | BILLABLE CODE |
| D46.Z | Other myelodysplastic syndromes | BILLABLE CODE |
