== Processing the Patient Identifer Set during a Load ==

=== Cardinality, with some examples ===

First of all, this is wrong. Every pid must have a patient_id.
{{{
<pid>
   <patient_map_id source="BRICCS">BPt00000040</patient_map_id>
   <patient_map_id source="UHLT">S0000040</patient_map_id>
</pid>
}}}

This is acceptable:
{{{
<pid>
   <patient_id source="BRICCS" status="Active">BPt00000040</patient_id>
   <patient_map_id source="UHLT">S0000040</patient_map_id>
</pid>
}}}