| Field identifier | DRB1 |
| Field description | HLA-DRB1 values |
| Element type | HLAType |
| Field type | hlaLocusType |
| Required | Yes |
| Length | |
| Comment | Both SER and DNA possible; either SER or DNA values required for CBU |
| Dictionary field | HLA-DRB1 (molecular) (HLA-DRB1 molecular result, values according to WHO nomenclature) |
| EMDIS fields related to dictionary field |
CB_DRB11 CB_DRB12 CB_MAT_DRB11 CB_MAT_DRB12 D_DRB11 D_DRB12 P_DRB11 P_DRB12 |