ICD-10-CM > C00-D49 > D37-D48 > D46 > D46.2 D46.2 Refractory anemia with excess of blasts [RAEB] Non-Billable/Non-Specific Codes D46.20Refractory anemia with excess of blasts, unspecifiedD46.21Refractory anemia with excess of blasts 1D46.22Refractory anemia with excess of blasts 2