CH EPR mHealth (R4)
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CH EPR mHealth (R4), published by eHealth Suisse. This is not an authorized publication; it is the continuous build for version 3.0.0-cibuild). This version is based on the current content of and changes regularly. See the Directory of published versions

Mobile Patient Demographics Query [ITI-78]

This section documents additional requirements in the Swiss EPR context on the Mobile Patient Demographics Query.


The Mobile Patient Demographics Query is used by an app in the Swiss EPR to query with demographics parameters for a patient pariticipating in the Swiss EPR.

Actor Roles

Actor: Patient Demographics Consumer
Role: Requests a list of patients matching the supplied set of demographics criteria (example: ID or Name) from the Patient Demographics Supplier. The Patient Demographics Consumer populates its attributes with demographic information received from the Patient Demographics Supplier.
Actor: Patient Demographics Supplier
Role: Returns demographic information for all patients matching the demographics criteria provided by the Patient Demographics Consumer

Referenced Standards

IHE Patient Demographics Query for Mobile Rev. 3.0.0: Trial Implementation) based on FHIR R4. Patient Identifier Cross-referencing for mobile (PIXm), Rev. 3.0.0 – Trial-Implementation, Februar 28, 2022
This PDQm Profile is based on Release 4 of the emerging HL7® FHIR® standard.


Interaction Diagram for [ITI-78]Patient DemographicsConsumerPatient DemographicsSupplierQueryQuery Patient ResourceQuery Patient Resource ResponseRetrieveRetrieve Patient ResourceRetrieve Patient Resource Response

Trigger Events

A mobile app wants to query patients, which participate in the Swiss EPR.

Message Semantics

The message semantics is the same as defined in 2: with a restriction if there are more than 5 matches. If there are more than 5 matches, the result should return zero matches.

Message Example

Query for a patient with name Muster and birthdate 1995-01-27.

GET [base]/Patient?name=Muster&birthdate=1995-01-27
Accept: application/fhir+json; fhirVersion=4.0

Example response to above query

Security Consideration

TLS SHALL be used. This national extension enforces authentication and authorization of access to the Patient Identifier Cross-reference Manager using the IUA profile with basic access token. Consequently the Mobile Patient Identifier Cross-reference Query [ITI-83] request must authorize using the Incorporate Access Token [ITI-72] transaction of the IUA profile.