Five priority EEHRxF data categories
i2X implements 5 priority data categories defined by the European Health Data Space regulation, using the corresponding EU FHIR implementation guides - published and maintained through the MyHealth@EU programme.
Patient Summary
EU PS IG · HL7 IPSA minimal but clinically relevant data set — allergies, medications, current diagnoses, relevant history — that travels with the patient for unplanned and emergency care across EU borders.
ePrescription
EU eP IG · FHIR R4Electronic prescriptions and dispensation records that can be validated and fulfilled at pharmacies across any EU member state, regardless of a country's National ePrescription System.
Laboratory Results
EU Lab IG · FHIR R4Structured laboratory reports —Complete Blood-Count (CBC), biochemistry tests and microbiology tests— shared in a standardised format any clinician or automated system in another member state can interpret without manual re-entry.
Medical Imaging
EEHRxF Imaging · DICOMRadiology imaging and structured radiology reports accessible across borders at full diagnostic quality, providing specialist consultations and second opinions without physical media or shipping services.
Hospital Discharge Reports
EU HDR IG · FHIR R4Complete clinical handover documents (diagnosis, procedures, prescribed medication upon discharge, and follow-up instructions) transferred between providers across borders so post-discharge care can begin immediately.
All five categories align with the MyHealth@EU technical specifications and the EEHRxF Annex of the EHDS Regulation. All implementations use FHIR R4 profiles published by HL7 Europe and maintained through the formal EEHRxF specification governance process.
EEHRxF Testing and Implementation Lab
One of the project's objectives is to establish the conformance testing infrastructure that ensures every implementation and demonstration system meets the EEHRxF specifications before patient data cross national borders. IHE Catalyst and the Department of Health Ireland, co-leaders of WP3, use:
Conformance Testing
Automated validation of vendor implementations against EU FHIR implementation guides. Every system must pass structured conformance checks before joining any clinical implementation and demonstration site deployment.
Plugathons
Multi-day interoperability testing events modelled on IHE Connectathons, where vendors, national contact points, and implementation and demonstration teams test end-to-end data exchange across systems and countries in real time.
Implementation Guide Validation
Continuous tooling that validates clinical content against EU FHIR profiles, business rules, and value sets — detecting any specification drift before it reaches production systems deployed in real clinical environments.
How a plugathon works
Registration and pre-testing
Vendor systems complete self-attestation and pre-validation against published FHIR profiles using the conformance toolkit provided by WP3, before the event begins.
Live interoperability testing
Systems from different vendors and member states exchange synthetic patient records — across all five priority categories — under structured test scenarios managed by the WP3 team.
Gap analysis and specification feedback
Each system receives a conformance report detailing any deviations. Vendors and IG maintainers use findings to improve both implementations and specifications.
Certification, implementation & demonstration clearance
Systems that meet all conformance criteria receive a certificate and are cleared to participate in clinical implementation and demonstration handling real patient data under EHDS data governance rules.
35 clinical Business Use Cases across 9 countries and 16 sites
Spanning hospitals, primary care centres, pharmacies, radiology units, and laboratory networks across Europe — not controlled pilot environments — where EEHRxF is deployed and validated against real clinical workflows and patient populations.
Clinical use cases driving implementation
We mapped each use case on a real clinical scenario linked to one or more EEHRxF data categories, a set of implementation and demonstration sites, and measurable outcomes for patients and the clinicians who care for them.
EU citizen receives emergency care abroad. The treating clinician retrieves their Patient Summary (allergies, medication, and diagnoses) from the home-country EHR in seconds, without phone calls.
Patient fills a prescription at a pharmacy in a different EU member state. The pharmacist validates and dispenses using the EU ePrescription, without re-prescribing or contacting the original prescriber.
Chronic disease patient is referred to a specialist in another country. Structured lab results travel with the referral as EU Lab IG documents, preventing duplicate testing and delay at the specialist appointment.
Imaging study and structured report sent to a specialist abroad for a second opinion. Full-quality DICOM images travel with the FHIR radiology report — without physical media or shipping services.
Patient hospitalised abroad returns home. The EU Discharge Report is already available to local GPs — covering diagnosis, procedures, medications, and follow-up — before the patient walks through the door.