Represents a decision regarding whether a message can be initially
accepted for further processing. As per HL7 specs, for original-mode
messages, a message should be accepted at this stage if the system thinks it can handle
the message based on MSH-9, 11, and 12 values (assuming these can be parsed).
In enhanced mode, the above checks are optional. Also optional is a check for
syntactical correctness. Mandatory checks include availability of safe storage
and "interface status".
$Revision: 1.1 $ updated on $Date: 2007-02-19 02:24:38 $ by $Author: jamesagnew $
the ACK code corresponding to the ruling, if any. Ie "AR",
"CE", "CR", or "CA". If in original mode, null is returned for non-"AR"
situations. This is because only the application layer can tell whether the
answer is "AE" or "AA".