PIX Query HL7 Message Types

In the HL7 v2 IHE framework, this type of event is known as an ITI-9 transaction. It is triggered by the following HL7 v2 event, and is identified as a “Query” event with an event ID of 110112:

• Q23: Get corresponding identifiers

The master patient index response to the Q23 request is the following HL7 v2 event:

• K23: Corresponding patient identifiers

In the HL7 v3 IHE framework, this type of event is known as an ITI-45 transaction. It is triggered by the following HL7 v3 event. For audit purposes, it is identified as a “Query” event with an event ID of 110112.

• PRPA_TE201309UV02: Patient registry get identifiers query (triggers a PRPA_IN201309UV02 message)

The master patient index response to the above request is the following HL7 v3 event:

• PRPA_IN201310UV02: Patient registry get identifiers query response