Reply action code to ignore HL7 Nack as error

To mark an HL7 NACK as "completed," ignoring an error without generating an alert, you can utilize the Reply Code Actions settings of the HL7 operation in the InterSystems platform. This involves customizing the Reply Code Actions string based on the specific NACK codes or conditions you want to handle differently.

Here are some relevant details for handling NACKs:

1. Default Reply Code Actions: The default Reply Code Actions is:

   ':?R=RF,:?E=S,:~=S,:?A=C,:*=S,:I?=W,:T?=C'
   

   It specifies actions for the different response codes received (e.g., AR, AE, CR, etc.) [1].

2. Customizing Reply Code Actions: To suspend messages with the specified error or mark them "Completed," you should update the Reply Code Actions string. For instance:

   AR=S,:?R=S,:?E=S,:~=S,:?A=C,:*=S,:I?=W,:T?=C
   

   In this example, NACKs with the "AR" in the MSA:1 segment would be matched and the message would be suspended, and other error conditions would follow the default behavior [1].

3. Use Conditional Matching: If you want to mark a message completed based on specific criteria in an error within the NACK, you can use text matching conditions. For example:

   E*Date of birth in PID.7 must not be empty=S,:?R=S,:?E=S,:I?=W,:T?=C
   

   This indicates that when a NACK contains the specified text in the error description, the message will be marked as "Suspended" or "Completed" with the action code S[2].

Make sure no extra spaces or unnecessary quotation marks are added around the action code string, as it could lead to errors during execution.

These updates to the Reply Code Actions string should achieve the desired functionality. If further customization is needed, extending the operation and overriding specific methods like OnReplyDocument() or OnGetReplyAction() may be required [3][4][2].

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