VXX - Response to vaccination query returning multiple PID matches

If the query results in multiple "matches," i.e., more than one patient record matches the identifiers in the query so that there is no unique identification, the response to the query (with a V02 event) will follow this format. Within the definitions for QRD and QRF, certain components are defined according to position in the field, as detailed in Section 4.17.2, "Queries for immunization records (QRF Segments)." The three-letter code in the leftmost column indicates the segment that is included; the column on the right specifies the chapter in which that segment is fully defined.