HL7 Europe Laboratory Report
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## EHDS ServiceRequest Mapping

EHDSServiceRequest -> ServiceRequestLabEu
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.

### EHDSServiceRequest -> ServiceRequestLabEu

This page explains how conceptual elements from the EHDS Service Request logical model are expressed in the corresponding FHIR ServiceRequest profile used by this Implementation Guide.

Mapping Context

- Source logical model: EHDSServiceRequest
- Target FHIR profile: ServiceRequestLabEu

EHDSServiceRequest -> ServiceRequestLabEu
EHDSServiceRequest (Logical Model) | Relationship | ServiceRequestLabEu
--- | --- | ---
Element | Description | Relation | Resource | Element | Description | Notes
header | Common header inherited from EHDSDataSet. | related-to | ServiceRequest | . | General metadata container. |
header.subject | Patient/subject of care. | equivalent | ServiceRequest | subject | Who or what the request is about. |
header.identifier | Business identifier. | equivalent | ServiceRequest | identifier | Placer/filler order identifiers. |
header.author[x] | Author of the resource. | related-to | ServiceRequest | requester | Requester of the service. | Closest fit; semantic alignment may vary by workflow.
header.date | Date and time of authoring. | equivalent | ServiceRequest | authoredOn | Date request was created. |
header.status | Status of the request. | equivalent | ServiceRequest | status | Request lifecycle state. |
header.language | Language of the resource. | equivalent | ServiceRequest | language | Language of content/narrative. |
description | Textual description of the requested service. | related-to | ServiceRequest | text |  |
code | Code and name identifying requested service. | equivalent | ServiceRequest | code | What is being requested. |
quantity | Amount of requested services of same type. | related-to | ServiceRequest | quantity[x] | Requested quantity. | Typically Quantity in laboratory use cases.
bodySite | Anatomic location/laterality of requested procedure. | related-to | ServiceRequest | bodySite | Target site |
reason[x] | Reason why service is requested. | equivalent | ServiceRequest | reasonCode | Clinical justification. | If reason is a coded value, it maps to reasonCode.
reason[x] | Reason why service is requested. | equivalent | ServiceRequest | reasonReference | Clinical justification. | Reason details are represented as references to other resources.
priority | How quickly request should be addressed. | equivalent | ServiceRequest | priority | Routine | urgent | asap | stat. |
supportingInformation[x] | Additional clinical info relevant to interpretation. | equivalent | ServiceRequest | supportingInfo | Supporting references. |
specimen | Specimen(s) to be used for laboratory procedure. | equivalent | ServiceRequest | specimen | Referenced specimen resources. |
encounter | Encounter context of the request. | equivalent | ServiceRequest | encounter | Healthcare context of request. |
occurrence[x] | Expected time of the service. | equivalent | ServiceRequest | occurrence[x] | Requested occurrence timing. |
patientInstructions | Patient or consumer-oriented instructions. | equivalent | ServiceRequest | patientInstruction | Instructions to patient/subject. |

Return to overview: EHDS Logical Models -> FHIR Profiles