CH EPR FHIR (R4)
4.0.0-ballot - ballot
CH EPR FHIR (R4)
4.0.0-ballot - ballot
This page is part of the CH EPR FHIR (R4) (v4.0.0-ballot: DSTU 4 Ballot 1) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions
This section describes the national extension for the Swiss EPR to the Mobile Patient Identifier Cross-reference Query [ITI-83] transaction defined in the IUA profile published in the IHE IT Infrastructure Technical Framework Trial Implementation “Patient Identifier Cross-referencing for mobile”.
The Mobile Patient Identifier Cross-reference Query is used by an app in the Swiss EPR to query with the local identifier the MPI and get the corresponding MPI-PID and the EPR-SPID identifier for the patient.
Actor: Patient Identifier Cross-reference Consumer
Role: Queries the Patient Identifier Cross-reference Manager for the MPI-PID and EPR-SPID.
Actor: Patient Identifier Cross-reference Manager
Role: Resolves the local ID sent with the request to the MPI-PID and EPR-SPID.
The message semantics is the same as defined in 2:3.83.4.1.2 with a restriction on the targetSystem query Parameter:
GET [base]/Patient/$ihe-pix?sourceIdentifier=[token]&targetSystem=[uri]{&_format=[token]}
| Query parameter Name | Cardinality | Search Type | Description | Swiss National Extension |
|---|---|---|---|---|
| Input Parameters | ||||
| sourceIdentifier | 1..1 | token | The Patient identifier search parameter that will be used by the Patient Identifier Cross-reference Manager to find cross matching identifiers associated with the Patient Resource. See Section 2:3.83.4.1.2.1. | No further refinement. |
| targetSystem | 2..2 | uri | The Assigning Authorities for the Patient Identity Domains from which the returned identifiers shall be selected. See Section 2:3.83.4.1.2.2. | SHALL be the Assigning authority of the community and the EPR-SPID. |
| _format | 0..1 | token | The requested format of the response from the mime-type value set. See ITI TF-2: Appendix Z.6. | No further refinement. |
See the PIXm Find patient matches OperationDefinition and the CH PIXm IN Parameters Profile (with its example: PIXm Parameters Query Input).
Query for a patient with a local id of 123 by AssigningAuthority oid 1.2.3 which resides in a community where the Assigning Authority is oid 5.6.7 and the MPI-PID and EPR-SPID are requested:
GET [base]/Patient/$ihe-pix?sourceIdentifier=urn:oid:2.999.1.2.3|123&targetSystem=urn:oid:2.999.5.6.7&targetSystem=urn:oid:2.16.756.5.30.1.127.3.10.3 HTTP/1.1
Accept: application/fhir+json
traceparent: 00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-00
| Parameter | Cardinality | Data Type | Description |
|---|---|---|---|
| FHIR Parameters Resource | |||
| targetIdentifier | 0..2 | Identifier | The identifier found. Constraints to include the assigning authority as specified in ITI TF-2: Appendix E.3. |
| targetId | 0..1 | Reference(Patient) | The URL of the Patient Resource |
See Output Parameters example (and the corresponding profile) as response to the Mobile Patient Identifier Cross-reference Query.
If the targetSystem is not restricted to the Assigning authority of the community and the EPR-SPID, then the following
failure shall be returned:
HTTP 403 (Forbidden) is returned as the HTTP status code.
An OperationOutcome Resource is returned indicating that the Patient
Identifier Domain is not recognized in an issue having:
| Attribute | Value |
|---|---|
| severity | error |
| code | code-invalid |
| diagnostics | “targetSystem not found” |
See Input Parameters example (and the corresponding profile) for the Mobile Patient Identifier Cross-reference Query.
The CapabilityStatement resource for the Patient Identifier Cross-reference Consumer is PIXm Patient Identifier Cross-Reference Consumer.
The CapabilityStatement resource for the Patient Identifier Cross-reference Manager is PIXm Patient Identifier Cross-reference Manager.
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 [ITI-72] transaction of the IUA profile.
For the traceparent header handling refer to Trace Context header.
The Patient Identifier Cross-reference Consumer shall record a PIXm Query Consumer Audit Event Log. Audit Example for a PIXm Query transaction from consumer perspective.
The Patient Identifier Cross-reference Manager shall record a PIXm Query Manager Audit Event Log. Audit Example for a PIXm Query transaction from manager perspective.