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An explanation of how to use this feature follows.
HL7 Path - This is the HL7 Path of the field that will be set. For example, this could be an entire field such as MSH-3 as shown above, or it could be a specific subcomponent such as PID-3[2].6.2 which would be the "Assigning Facility's Universal ID of the second repeat of the Patient Identifier".
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Below are some examples of how to fill in the following dialog for different replacement objectives.
| Objective | HL7 Path | Replacement Text | Expression | When |
|---|---|---|---|---|
| Set MSH-3 to EPIC for all messages of type ADT^A08 | MSH-3 | EPIC | - | MSH-9.2 = 'A08' |
| Set MSH-4 to the value in MSH-3 + '-TEST' | MSH-4 | - | MSH-3 + '-TEST' | ALWAYS |
| Set PID-2 to the value in PID-3 for all messages | PID-2 | - | PID-3 | ALWAYS |
| Set PID-2 to the second repeat of PID-3 | PID-2 | - | PID-3[2] | ALWAYS |
| Set OBR-2 to OBR-3 when OBR-2 is null | OBR-2 | - | OBR-3 | OBR-2 IS NULL |