HL7v2 Specifications
Last updated: 8/27/2026The Talend Data Mapper provides projects that contain the HL7v2 specifications. These definitions allow you to create maps that interact with the HL7 transactions. These projects are installed as read-only projects and can be deployed to the Data Mapper Runtime.
The following elements of the HL7v2 standard are not available in the structures provided
in Talend Data Mapper:
- Segments named Hxx, used as placeholders for any segment.
- Segments whose name starts with ?, meaning any other segment.
- Segments whose name starts with Z, meaning customer-defined segments.
For elements defined as Varies, meaning untyped, Talend Data Mapper creates a Composite containing 32 sub elements.
You can customize the structures provided to fit your needs.