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Setting the Grammar Root and Mapping the Data

The grammar root for the Patient table is going to be the message and the mappings will be the same as the previous steps.

To set up the grammar root and mappings for the Patient table:

• Select the PatientTable in the Table Grammar panel.
• Click the ellipsis button under Grammar Root. The Grammar Root Selection window appears.
• Choose Message as the grammar root, and click OK.
• Click the Edit Mappings button, and you will notice that the Table Mappings for the PatientTable are already mapped.

PatientTable Already Mapped

For the PatientObservation table, you want to map out data from the repeating OBR segment.

To set the grammar root and mappings for the PatientObservation table:

• Select the OBRsegment as the grammar root (every repeat of this root will result in a new row in the PatientObservation table).
• Map the table as illustrated below:

Mapping the PatientObservation Table

Note that the PID field in the PatientObservation table is unmapped. Since you will want to map the ID from the PID segment into multiple rows of the PatientObservation table, you will simply store the PID information in a global Python variable. You will then use this value to populate the PatientObservation table's PID field. This is explained in the next step.