John,
It sounds like McKesson has some user defined fields as I do not find the fields you mention in my 2.3 HL/7 documentation.
I would think McKesson should be able to tell you what is in those fields (if Mckesson is sending the message) or what they want in those fields (if McKesson is receiving the message).
In any case, if you are going to be using an HL/7 variant, you will need to configure those fields in the segment yourself.
Jim Kosloskey
email: jim.kosloskey@jim-kosloskey.com 30+ years Cloverleaf, 60 years IT – old fart.
