EHDS Logical Information Models
0.4.0 - draft

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.4.0 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/ and changes regularly. See the Directory of published versions

## Logical Model: EHDSDeviceUseObligations - Detailed Descriptions

Draft as of 2026-03-03

Definitions for the EHDSDeviceUseObligations logical model.

- Key Elements Table
- Differential Elements Table
- Snapshot Elements Table

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSDeviceUse
Definition | Model for information about the use of a device in the care of patient. Base definition for all types defined in FHIR type system.
Short | Device use modelBase for all types and resources
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSDeviceUse.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSDeviceUse.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
6. EHDSDeviceUse.header.identifier
Definition | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
Short | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
8. EHDSDeviceUse.header.author[x]
Definition | The author of the device usage statement.
Short | The author of the device usage statement.
Control | 0..*
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
10. EHDSDeviceUse.header.date
Definition | Date and optionally time of authoring/issuing
Short | Date and optionally time of authoring/issuing
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
12. EHDSDeviceUse.header.status
Definition | Current status of the device usage (e.g. active, completed, etc).
Short | Current status of the device usage (e.g. active, completed, etc).
Control | 1..1
Binding | HL7 Device Use Statement Status or HL7 Device Usage Status
Type | CodeableConcept
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
14. EHDSDeviceUse.header.source
Definition | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.
Short | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.
Control | 0..1
Type | CodeableConcept
16. EHDSDeviceUse.header.language
Definition | Language in which the resource is written. Language is expressed by the IETF language tag.
Short | Language in which the resource is written. Language is expressed by the IETF language tag.
Control | 0..1
Binding | BCP 47
Type | CodeableConcept
18. EHDSDeviceUse.periodOfUse
Definition | The period of time during which the device was implanted in the patient or the external device was in use.
Short | The period of time during which the device was implanted in the patient or the external device was in use.
Control | 0..1
Type | Period
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
20. EHDSDeviceUse.device[x]
Definition | The details of the device used.
Short | The details of the device used.
Control | 1..1
Type | Choice of: CodeableConcept, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
22. EHDSDeviceUse.bodySite
Definition | Anatomical location of the device. May include laterality.
Short | Anatomical location of the device. May include laterality.
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
24. EHDSDeviceUse.reason[x]
Definition | Reason or justification for the use of the device.
Short | Reason or justification for the use of the device.
Control | 0..*
Type | Choice of: CodeableConcept, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSCondition, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSProcedure
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Requirements | eHN PS Guideline, ISO IPS.
26. EHDSDeviceUse.note
Definition | Note about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.
Short | Note about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSDeviceUse
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSDeviceUse.header
4. EHDSDeviceUse.header.subject
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
6. EHDSDeviceUse.header.status
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
8. EHDSDeviceUse.periodOfUse
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
10. EHDSDeviceUse.device[x]
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
12. EHDSDeviceUse.bodySite
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
14. EHDSDeviceUse.note
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSDeviceUse
Definition | Model for information about the use of a device in the care of patient.
Short | Device use model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSDeviceUse.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSDeviceUse.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
6. EHDSDeviceUse.header.identifier
Definition | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
Short | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
8. EHDSDeviceUse.header.author[x]
Definition | The author of the device usage statement.
Short | The author of the device usage statement.
Control | 0..*
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
10. EHDSDeviceUse.header.date
Definition | Date and optionally time of authoring/issuing
Short | Date and optionally time of authoring/issuing
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
12. EHDSDeviceUse.header.status
Definition | Current status of the device usage (e.g. active, completed, etc).
Short | Current status of the device usage (e.g. active, completed, etc).
Control | 1..1
Binding | HL7 Device Use Statement Status or HL7 Device Usage Status
Type | CodeableConcept
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
14. EHDSDeviceUse.header.source
Definition | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.
Short | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.
Control | 0..1
Type | CodeableConcept
16. EHDSDeviceUse.header.language
Definition | Language in which the resource is written. Language is expressed by the IETF language tag.
Short | Language in which the resource is written. Language is expressed by the IETF language tag.
Control | 0..1
Binding | BCP 47
Type | CodeableConcept
18. EHDSDeviceUse.periodOfUse
Definition | The period of time during which the device was implanted in the patient or the external device was in use.
Short | The period of time during which the device was implanted in the patient or the external device was in use.
Control | 0..1
Type | Period
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
20. EHDSDeviceUse.device[x]
Definition | The details of the device used.
Short | The details of the device used.
Control | 1..1
Type | Choice of: CodeableConcept, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Obligations |
Obligations | Actor
SHALL:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
22. EHDSDeviceUse.bodySite
Definition | Anatomical location of the device. May include laterality.
Short | Anatomical location of the device. May include laterality.
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer
Requirements | eHN PS Guideline, ISO IPS.
24. EHDSDeviceUse.reason[x]
Definition | Reason or justification for the use of the device.
Short | Reason or justification for the use of the device.
Control | 0..*
Type | Choice of: CodeableConcept, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSCondition, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSProcedure
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Requirements | eHN PS Guideline, ISO IPS.
26. EHDSDeviceUse.note
Definition | Note about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.
Short | Note about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Obligations |
Obligations | Actor
SHOULD:able-to-populate | Producer