EMDIS message: PHEN_LIST

A phenotype is defined as A, B, DR and DRB1. All the other HLA fields are only present for historical reasons and will be removed in a future version.

Although all HLA fields of the PHEN_LIST message are defined as optional at a minimum antigen and/or allele values must be provided for the loci A and B.

The use of the FML block construct is recommended.

The list must only contain items who’s D_TYPEs correspond with the P_MAX_DON of the patient (e.g. cords must not be reported if P_MAX_DON_CB = 0) but the list is mandatory for donors and also for cords if P_MAX_DON_CB > 0.

The phenotype list can contain more results (sum of HUB_COUNTs) than the donor list because the donor list is limited by the P_MAX_DON_* fields. It must contain all suitable phenotypes for the given patient i.e. it gives a snapshot of the number of currently available donors in a registry and allows the patient’s registry to know the maximum number of donors/cord which can be specified in the P_MAX_DON_* fields.

The phenotype list is not updated regularly like the donor list (see EMDIS Repeat Search Program). An updated phenotype list can only be retrieved by a PAT_STAT or changed A, B, DR or DRB1 patient values.

Only 6/6 and 4/4 antigen matched donors and cords according to the patients phenotype and the P_MAX_DON* fields have to be reported even if the patient’s matching preferences are set to mismatch.