OML_O21
OML^O21 Acknowledgment Choreography
OML^O21
The following message structure may be used for the communication of laboratory and other order messages and must be used for lab automation messages where it is required that the Specimen/Container information is within the ORC/OBR segment group.
The trigger event for this message is any change to a laboratory order. Such changes include submission of new orders, cancellations, updates, etc. OML messages can originate also with a placer, filler, or an interested third party.
Acknowledgment Rules(4)
| Mode | MSH-15 | MSH-16 | Immediate ACK | Application ACK |
|---|---|---|---|---|
| Original | blank | blank | - | ^^ |
| Enhanced | NE | NE | - | - |
| Enhanced | NE | AL,SU,ER | - | ^^ |
| Enhanced | AL,SU,ER | AL,SU,ER | ^^ | ^^ |
Legend
blank - Field is empty/not valuedNE - Never (no acknowledgment)AL - AlwaysSU - Success onlyER - Error/reject only