1.2.6 relationship between CDA and HL7 messages

Clinical documents can be revised and can be appended to existing documents. In theory, an updated document should declare that it has been deprecated, It should include a clear pointer to the new version of the document. This reduces errors or data integrity of medical service providers based on treatment decisions.

 

However, in practice, it is impossible to ensure a clear forward pointer from an expired version to a new version. There is no trace queue that can be traced about the stored clinical documentation and all its copies, and there is no way to ensure that the current clinical documentation is not subsequently changed.

To reduce the risk of browsing to discarded information, There is a strict interdependence between clinical documents and document management systems. If CDA Documents are viewed outside the document management system, We cannot know exactly whether this document has been modified. Carry HL7 Message CDA Document (such HL7 Report V2.x In Mdm Message And V3.0 in the medical records message) transmits a specific, context-related information to ensure accurate viewing of clinical data.