How Does VistA HL7 Determine which Code to execute?
On Sun, Jul 8, 2018 at 2:14 PM, Steve <solitary.wanderer52@gmail.com> wrote: When an HL7 messages comes into VistA, how does it determine which application will decode/execute it?
Answer: When an HL7 message comes into VistA, the MSH segment names the kind of message it is. The MSH segment will look something like this:
MSH
This is used to lookup an entry in the PROTOCOL File#101 which describes itself as: This file contains the orderables and methods for accomplishing orders (protocols) within OE/RR.
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