In this example, a hospital that specializes in elective surgery for celebrities and other wealthy patients is using Iguana to extract patient information from incoming ADT^A04 (Register a Patient) messages and write it to a database. These incoming messages contain a custom segment, ZVP, that indicates whether the patient is a VIP that needs special treatment:

MSH|^~\&|MESA_ADT|XYZ_ADMITTING|MESA_IS|XYZ_HOSPITAL|||ADT^A04|101102|P|2.3.1||||||||
EVN||200004211000||||200004210950
PID|||583020^^^ADT1||WHITE^CHARLES||19980704|M||AI|7616 STANFORD AVE^^ST. LOUIS^MO^63130|||||||20-98-1701|
PV1||E||||||5101^NELL^FREDERICK^P^^DR|||||||||||V1002^^^ADT1|||||||||||||||||||||||||200004210950||||||||
ZVP|1|

If the field in the ZVP segment is set to 1, the incoming patient is a VIP.

The following sections describe how to modify the VMD file for the To Database destination component of this channel to write a log message when a VIP is admitted, and how to define an email notification rule to send an email message when this log message is detected.

	For more information on the To Database destination component, see To Database.