00016
Application Acknowledgement Type
Definition: This field contains the conditions under which application acknowledgments are required to be returned in response to this message. Required for enhanced acknowledgment mode.
The following table contains the possible values for MSH-15-accept acknowledgment type and MSH-16-application acknowledgment type:
Length≤2
4 values
AL | Always |
ER | Error/reject conditions only |
NE | Never |
SU | Successful completion only |