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2.14.2 UDM/ACK - unsolicited display update message (event Q05)

There is a simple HL7 message that allows for unsolicited display update messages to be sent in HL7 format from one system to another.

Trigger events for the unsolicited update are generally the completion of a particular action (concerning a given patient). For example, a lab test might be completed, generating a STAT unsolicited display message to be sent to the appropriate location.

UDM     Unsolicited Display Message    Chapter
MSH      Message Header        2
URD     Results/Update Definition      2
[ URS ]    Results/Update Selection Criteria    2
         {  DSP  } Display Data         2
[ DSC ]    Continuation Pointer       2
ACK     General Acknowledgment     Chapter
MSH     Message Header        2
MSA     Message Acknowledgment      2
[ ERR ]    Error          2

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