HL7 Europe Base and Core FHIR IG
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HL7 Europe Base and Core FHIR IG, published by HL7 Europe. This guide is not an authorized publication; it is the continuous build for version 0.2.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/base/ and changes regularly. See the Directory of published versions

Logical Models

EHDS Logical Data Models

Logical data models (or information models) for the European Health Data Space (EHDS) are developed by the Xt-EHR Joint Action.

These models are refined and enhanced versions of the data sets defined in the eHealth Network (eHN) Guidelines.

This Implementation Guide (IG) aims to align with the EHDS logical models and to provide HL7 FHIR profiles derived from these models.

Note: The Xt-EHR logical models are under active revision and continuous refinement. Updates and improvements made by the Xt-EHR project will be progressively incorporated into this Implementation Guide to maintain alignment with the evolving EHDS specifications.

The EHDS logical models currently supported in this version of the guide are listed below. For the most recent and in-progress versions, please refer to the Xt-EHR EHDS Logical Information Models Implementation Guide.

Xt-EHR Logical Models

🧩 Foundational Models

Model Description
EHDSAddress EHDS refined base model for Address structure
EHDSHumanName EHDS refined base model for Human Name
EHDSTelecom EHDS refined base model for telecommunications and contact details
EHDSBodyStructure EHDS refined base model for Body structure

🧑‍⚕️ Entity Models

Model Description
EHDSPatient EHDS refined base model for Patient (subject of care)
EHDSPatientAnimal EHDS refined base model for Animal Patient
EHDSHealthProfessional EHDS refined base model for Health Professional
EHDSOrganisation EHDS refined base model for healthcare organisations and providers
EHDSLocation EHDS refined base model for location, site, or service delivery place

🩺 Clinical Information Models

Model Description
EHDSAlert EHDS refined base model for clinical alerts
EHDSAllergyIntolerance EHDS refined base model for allergy or intolerance information
EHDSCondition EHDS refined base model for a clinical condition, problem, diagnosis, or other event, situation, issue, or clinical concept that has risen to a level of concern
EHDSProcedure EHDS refined base model for an action that is or was performed on or for a patient
EHDSImmunisation EHDS refined base model for Immunisation

💊 Medication Models

Model Description
EHDSMedication Logical model for prescribed/dispensed medication. Shared by statements, requests, dispensations, and treatment lines. Supports both generic (virtual) and branded (real) products.
EHDSMedicationStatement Statement about a single medication as part of a medication summary

Future updates: Additional EHDS logical models will be added as they become available through the Xt-EHR project.