Is there a way in the routing rule to compare two fields in two different segments? For example, for the message below we need to compare one Identifier in PID-3 (uiytr5678906^^^^CKS)against another in MRG-1 (uiytr5678A06^^^^CKS). Both will always have the same IdentifierTypeCode (PID-3.5/MRG-1.5), but the ID number can be different. Just to clarify, we only want to compare the CKS IdentifierID, not the entire field or all the identifiers in the MRG-1 or PID-3 field.