Defining a new HL7 segment

  1. Click the Segments tab. In this example, create a Z01 segment for holding allergy data.
  2. In the Defined Segments pane, click New.
  3. Specify the Segment Name and Segment Description. User-defined segments should have three-character names beginning with the letter Z.
  4. Click OK.
  5. Click Add/Paste Places New Fields to select the location to place the new field.
  6. Click Add (Folder tool) in the Definition of the Selected Segment pane to add the new field to the segment.
  7. Click List and double-click the new field.
  8. Click OK in the Add Field to Segment dialog box.
  9. Repeat Steps 5 to 8 until all necessary fields are added.
  10. Select the new segment in the Definition of the Selected Segment pane.
  11. Click Required or Optional to make this segment required or optional in the message layout.
  12. Select the Repeats check box to specify whether the segments repeats.
    If repeating, then click the arrows to select the number of times the segment repeats.