If your incoming HL7 message feed consists of many different types of messages, you can configure an Iguana channel to process certain types of messages and ignore the rest.

In this tutorial, you will be configuring a channel that filters the following types of messages:

• ADT^A03 (Discharge/End Visit)
• ADT^A04 (Register a Patient)
• ADT^A05 (Pre-admit a Patient)
• ADT^A06 (Change An Outpatient to An Inpatient)
• ADT^A08 (Update Patient Information)

In the following sections, you will learn how to:

• Use Chameleon to create a VMD file that contains two message definitions: one for the messages that you want your channel to process, and one for the messages that you want to ignore.

• Use Iguana and this VMD file to screen an incoming message feed. The messages that make it through the screen are routed to an LLP Client. The rejected messages are routed to a file.