HL7 has been a foundational organisation in implementing standards for healthcare information exchange since the 1970s. With the IHE principals of reusing existing standards, HL7 provides important technologies that are referenced and used by IHE.

HL7 FHIR represents the latest phase of HL7 standards development, providing RESTful interfaces and a healthcare information modelling paradigm that facilitates the encapsulation of healthcare information. IHE actively incorporates FHIR as a messaging protocol in a variety of ways.

HL7 v2 is a healthcare information messaging standard. While this technology dos does not use web-services (as many integrations currently do), it still provides an important component of healthcare systems integration. In particular, IHE incorporates us of HL7v2 in major IHE profiles that are current widely adopted and in use – for example in Radiology, Cardiology or Pathology.

IHE and HL7 maintain a formal agreement for collaborative development.


openEHR supports vendor-neutral, patient-centric healthcare platforms based on for collaboratively modelled granular data.  The clinical data-driven approach promoted interoperable healthcare information by providing a mechanism to share common data models between systems.

There are no formal agreements between IHE and openEHR, but informally local implementations bring these technologies together and good working practices for the linkage between IHE and openEHR re stating to emerge.

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IHE has created a set of information resources and tools for vendors and users of healthcare information systems to help them integrate systems and share information more effectively.

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