| Field code | P_A1 |
| Field description | Patient HLA-A, 1st antigen |
| Field type | Alphanumeric Length: 5 |
| Field rule | Values according to WHO nomenclature _ see note 3 in the appendix |
| Dictionary field | HLA-A (serological) (HLA-A serology result per WHO nomenclature) |
| EMDIS messages |
ALM_REQ PAT_UPD |
| WMDA XML fields related to dictionary field |
HLA-A-SER-FIELD1 HLA-A-SER-FIELD2 MAT-HLA-A-SER-FIELD1 MAT-HLA-A-SER-FIELD2 |