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eHealth Infrastructure Extension Definition: Specification of the 'On behalf of' Element

On behalf of - Definitions - eHealth Infrastructure v3.5.1 - Sundhed.dk

July 5, 2026eHealth Infrastructure

Summary

The eHealth Infrastructure, based on FHIR standards, has defined a new extension element called 'On behalf of'. This mechanism is designed to add supplementary information to resources and represents a technical specification that enables flexible and detailed information transfer in healthcare data exchange.

Details

This document details a segment of the technical specification for eHealth Infrastructure v3.5.1, which is built upon FHIR standards. It defines an extension element called 'On behalf of', which functions as an optional element found in all resources. By utilizing this mechanism, it is possible to add additional information (e.g., data source, specific process details) while maintaining the basic FHIR structure. Technically, this extension is defined via `Extension.extension` and uses a fixed URL. This capability is crucial for improving interoperability in healthcare because it allows for flexible data addition without compromising the standard core structure. In Japan's healthcare IT sector, where detailed information exchange and adaptation to local rules are often required between different systems, understanding and applying such extension mechanisms is highly relevant.

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