HL7 Europe Patient Summary
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## EHDSDeviceUse Mapping

EHDSDeviceUse -> DeviceUseStatementEuEps
Ongoing alignment: The Xt-EHR logical models are under active revision and continuous refinement. Updates from Xt-EHR will be progressively incorporated into this Implementation Guide to maintain alignment with the evolving EHDS specifications.
Yellow row/cells: In this ballot publication, some row/cells of the mapping table have been left in yellow to indicate areas requiring further review or refinement; including feedback from the Xt-EHR joint action (see note above). These highlights will be addressed in subsequent updates to ensure accuracy and completeness of the mappings.

### EHDSDeviceUse -> DeviceUseStatementEuEps

This page explains how conceptual elements from the EHDS logical model are expressed in the corresponding FHIR DeviceUseStatementEuEps profile or type used by this Implementation Guide.

Mapping Context

- Source logical model: EHDSDeviceUse
- Target FHIR profile: DeviceUseStatementEuEps

EHDSDeviceUse -> DeviceUseStatementEuEps
EHDSDeviceUse (Logical Model) | Relationship | DeviceUseStatementEuEps
--- | --- | ---
Element | Description | Relation | Resource | Element | Description | Notes
header | Common header for all patient-related data. | related-to | DeviceUseStatement | . | General metadata. | Dataset-level; not usually carried in DeviceUseStatement as-is.
header.subject | Patient/subject this device use is about. | equivalent | DeviceUseStatement | subject | Reference to the patient or subject of device use. | Reference to Patient (or other subject).
header.identifier | Business identifier for the object. | equivalent | DeviceUseStatement | identifier | Business identifier for this device use statement. | Copy over all identifiers if multiple.
header.author[x] | The author of the device usage statement. | no-map | DeviceUseStatement |  |  |
header.date | Date/time the resource was authored/issued. | equivalent | DeviceUseStatement | recordedOn | When the device use statement was recorded. |
header.status | Current status of the device usage. | equivalent | DeviceUseStatement | status | Status of the device use statement. | Preferred binding: HL7 Device Use Statement Status or HL7 Device Usage Status.
header.source | Source of information (e.g. patient, patient's proxy). | related-to | DeviceUseStatement | source | Reporter or source context for the device use information. | When both header.author[x] and header.source are populated, additional profiling may be needed to preserve both semantics.
header.language | Language of the resource (IETF tag). | equivalent | DeviceUseStatement | language | Language used in the statement. |
periodOfUse | The period of time during which the device was implanted in the patient or the external device was in use. | equivalent | DeviceUseStatement | timingPeriod | Period during which the device was used. |
device[x] | The details of the device used. | source-is-broader-than-target | DeviceUseStatement | device | Device being used. | FHIR uses Reference(Device); CodeableConcept may require a Device instance.
bodySite | Anatomical location of the device. May include laterality. | related-to | DeviceUseStatement | bodySite | Body site where the device is used. | EHDSBodyStructure may need to be summarized as CodeableConcept.
reason[x] | Reason or justification for the use of the device. | source-is-broader-than-target | DeviceUseStatement | reasonCode | Reason code for the device use. | FHIR uses CodeableConcept; references may need to be represented as codes or extensions.
note | Note about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. | equivalent | DeviceUseStatement | note | Additional notes about the device use. |

Return to overview: EHDS Logical Models -> FHIR Profiles