HL7 Fundamentals

Introduction

Creating HL7 interfaces in Iguana follows a simple repeatable pattern:

  • Parse the incoming HL7 messages into a read-only data structure
  • Create a writable outgoing message structure
  • Translate/map your messages into the outgoing message
  • Filter out any unwanted messages
  • Deal with unknown message types

The following pages in this article give a brief description of these stages. We also discuss what to expect in a VMD file structure.