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Pathology Messaging - HL7 V3

Request laboratory tests and send the results back to the requester, usually the patient's GP or consultant.

About this standard

NHS Digital
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Active standards are stable, maintained and have been assured or endorsed for use by qualified bodies.

Standards in development are APIs or API standards in alpha or beta, meaning they are available for use but are still in progress and may change.

Deprecated standards are older versions of a standard which are being phased out.

Retired standards are not being maintained and should not be used.

Standard type
  • Technical standards and specifications
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Record standards define what information to collect and how to format it, for example when registering a new patient.

Data definitions and terminologies define the format of individual data items so they can be consistently represented, for example dates or medication names. Reference sets and controlled lists are also included.

Technical standards and specifications specify how to make information available technically including how the data is structured and transported.

Information codes of practice are legal or best practice guidelines on how information should be handled.

Contact details

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Topics and care settings

  • Tests and diagnostics
Care setting
  • Hospital
  • GP / Primary care

Dependencies and related standards

Related standards

Digital Child Heath - FHIR - Share information about a child's health between healthcare professionals using the Fast Healthcare Interoperability Resources (FHIR) standard for health and care data exchange.
Message Exchange for Social Care and Health API - use this API to transfer messages and large files securely across health and social care organisations.
Pathology Messaging - EDIFACT - send pathology test results from laboratories to GP practices using the Electronic Data Interchange for Administration, Commerce and Transport (EDIFACT) standard.
Pathology Messaging - FHIR - this is a newer replacement version of Pathology Messaging - HL7 V3 based on the FHIR standard.

Assurance and endorsements

Reference code for standards issued as requirements in England
None - not legally mandated
Quality assurance

Not yet known.


No known endorsements.

Page last updated: 20 January 2023