| Field code | P_ABO |
| Field description | Patient blood group and rhesus |
| Field type | Alphanumeric Length: 3 |
| Field rule | A, B, O (letter O), AB, all suffixed with P, +, N or - |
| Dictionary field | Blood Group (ABO) (Blood Group (ABO)) |
| EMDIS messages |
PAT_UPD |
| WMDA XML fields related to dictionary field |
ABO |