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Trillium Bridge

EU project 2014-2019 EU / US patient summary bridge.

Definition

Trillium Bridge delivered the first interoperable version of EU Patient Summary <-> US CCDA Continuity of Care Document with LOINC, SNOMED CT, ATC vs RxNorm mapping. Trillium-II extended to FHIR R3/R4. The project fed CEN EN 17269 and the HL7+CEN+ISO+IHE+SNOMED International IPS Joint Initiative.

Origin

EU Horizon 2020 grant 2014-2016 (Trillium Bridge), Trillium-II 2017-2019. Partners Empirica, EHTEL, HL7 Europe, SNOMED International, Vol. Trillium-II final report 2019.

Usage

Academic and policy reference for transatlantic patient summary interop. Direct inspiration for the IPS Joint Initiative that led to EN 17269.

Related terms

  • IPS — standard issu du projet.
  • epSOS — patient summary EU origine.
  • C-CDA — patient summary US origine.

Last updated: May 18, 2026