To process Patient Observation messages, you will need to set up the segment grammar to contain the MSH, PID and OBR segments in that order. To do this:

• Open the Message Grammar window.
• Drag and drop the PID and OBR segments from the Workspace into the Segment Grammar panel.
• Select the OBR segment, and check the Repeating checkbox.

The segment grammar should now look like this:

Checking the Repeating Checkbox for the OBR Segment

Now that you have the segment grammar for this message definition, the next step is to set up the table grammar.