EHDS Logical Information Models
0.1.0 - ci-build

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Xt-EHR/xt-ehr-common/tree/stakeholder-consultation-D6-1 and changes regularly. See the Directory of published versions

## Logical Model: Service request model

Official URL: https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSServiceRequest | Version: 0.1.0
Draft as of 2025-07-08 | Computable Name: EHDSServiceRequest

C.8 - EHDS refined base model for Specification of requested service or services

Usages:

- Use this Logical Model: Observation model
- Refer to this Logical Model: Encounter model and Imaging study model

### Views of Logical Model

Description of Differentials, Snapshots and how the different presentations work.

- Differential Table
- Snapshot Table

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSServiceRequest |  | 0..* | Base | Service request model Instances of this logical model can be the target of a Reference
serviceText |  | 0..1 | string | C.8.1 - Service text
serviceCode |  | 0..1 | CodeableConcept | C.8.2 - Service code Binding Description: (preferred): LOINC, NPU, SNOMED CT
reasonCode |  | 0..* | CodeableConcept | C.8.3 - Reason code Binding Description: (preferred): ICD-10 (ICD-11 when available), SNOMED CT, Orphacode
quantity |  | 0..1 | Quantity | C.8.4 - Quantity
anatomicLocation |  | 0..* | CodeableConcept | C.8.5 - Anatomic location Binding Description: (preferred): SNOMED CT
reasonReference |  | 0..* | Reference(Observation model | Condition model | Medication | DocumentReference | DiagnosticReport) | C.8.6 - Reason reference
priority |  | 0..1 | CodeableConcept | C.8.7 - Priority Binding Description: (preferred): HL7 Request priority
supportingInformation |  | 0..* | Reference(Observation model | Condition model | Procedure model | Medication administration model | Resource) | C.8.8 - Supporting information
specimen |  | 0..* | Reference(Specimen model) | C.8.9 - Specimen
subject |  | 1..1 | Reference(Patient model | Location model | Device model) | C.8.10 - Subject
encounter |  | 0..1 | EHDSEncounter | C.8.11 - Encounter
occurance[x] |  | 0..1 |  | C.8.12 - Occurance
occuranceDateTime |  |  | dateTime |
occurancePeriod |  |  | Period |
patientInstructions |  | 0..1 | string | C.8.13 - Patient instructions
coverage |  | 0..* | Reference(Coverage model) | C.8.14 - Coverage
Documentation for this format

#### Terminology Bindings (Differential)

Path | Conformance | ValueSet | URI
EHDSServiceRequest.serviceCode | preferred |
EHDSServiceRequest.reasonCode | preferred |
EHDSServiceRequest.anatomicLocation | preferred |
EHDSServiceRequest.priority | preferred |

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSServiceRequest |  | 0..* | Base | Service request model Instances of this logical model can be the target of a Reference
serviceText |  | 0..1 | string | C.8.1 - Service text
serviceCode |  | 0..1 | CodeableConcept | C.8.2 - Service code Binding Description: (preferred): LOINC, NPU, SNOMED CT
reasonCode |  | 0..* | CodeableConcept | C.8.3 - Reason code Binding Description: (preferred): ICD-10 (ICD-11 when available), SNOMED CT, Orphacode
quantity |  | 0..1 | Quantity | C.8.4 - Quantity
anatomicLocation |  | 0..* | CodeableConcept | C.8.5 - Anatomic location Binding Description: (preferred): SNOMED CT
reasonReference |  | 0..* | Reference(Observation model | Condition model | Medication | DocumentReference | DiagnosticReport) | C.8.6 - Reason reference
priority |  | 0..1 | CodeableConcept | C.8.7 - Priority Binding Description: (preferred): HL7 Request priority
supportingInformation |  | 0..* | Reference(Observation model | Condition model | Procedure model | Medication administration model | Resource) | C.8.8 - Supporting information
specimen |  | 0..* | Reference(Specimen model) | C.8.9 - Specimen
subject |  | 1..1 | Reference(Patient model | Location model | Device model) | C.8.10 - Subject
encounter |  | 0..1 | EHDSEncounter | C.8.11 - Encounter
occurance[x] |  | 0..1 |  | C.8.12 - Occurance
occuranceDateTime |  |  | dateTime |
occurancePeriod |  |  | Period |
patientInstructions |  | 0..1 | string | C.8.13 - Patient instructions
coverage |  | 0..* | Reference(Coverage model) | C.8.14 - Coverage
Documentation for this format

#### Terminology Bindings

Path | Conformance | ValueSet | URI
EHDSServiceRequest.serviceCode | preferred |
EHDSServiceRequest.reasonCode | preferred |
EHDSServiceRequest.anatomicLocation | preferred |
EHDSServiceRequest.priority | preferred |

Other representations of model: CSV, Excel