EHDS Logical Information Models
0.2.1 - qa-preview

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.2.1 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: EHDSDataSet - Detailed Descriptions

Draft as of 2026-02-03

Definitions for the EHDSDataSet logical model.

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

0. EHDSDataSet
Definition

Common elements (including header) for all documents and their independently functioning parts, e.g FHIR resources.


Base definition for all types defined in FHIR type system.

ShortDataSet modelBase for all types and resources
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. EHDSDataSet.header
Definition

Common header for all patient-related data

ShortCommon header for all patient-related data
Control1..1
TypeBase
4. EHDSDataSet.header.subject
Definition

Patient/subject information

ShortPatient/subject information
Control1..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSDataSet.header.identifier
Definition

Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).

ShortBusiness identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
8. EHDSDataSet.header.authorship
Definition

Resource authoring details. Multiple authors can be provided.

ShortResource authoring details. Multiple authors can be provided.
Control0..*
TypeBase
10. EHDSDataSet.header.authorship.author[x]
Definition

Author responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.

ShortAuthor responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.
Control1..1
TypeChoice 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] NoteSeeChoice of Data Typesfor further information about how to use [x]
12. EHDSDataSet.header.authorship.datetime
Definition

Date and time of authoring/issuing

ShortDate and time of authoring/issuing
Control1..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. EHDSDataSet.header.status
Definition

Status of the resource or document

ShortStatus of the resource or document
Control1..1
TypeCodeableConcept
16. EHDSDataSet.header.language
Definition

Language in which the resource is written. Language is expressed by the IETF language tag.

ShortLanguage in which the resource is written. Language is expressed by the IETF language tag.
Control0..1
Binding

BCP 47

TypeCodeableConcept

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

0. EHDSDataSet
Definition

Common elements (including header) for all documents and their independently functioning parts, e.g FHIR resources.

ShortDataSet model
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. EHDSDataSet.header
Definition

Common header for all patient-related data

ShortCommon header for all patient-related data
Control1..1
TypeBase
4. EHDSDataSet.header.subject
Definition

Patient/subject information

ShortPatient/subject information
Control1..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSDataSet.header.identifier
Definition

Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).

ShortBusiness identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
8. EHDSDataSet.header.authorship
Definition

Resource authoring details. Multiple authors can be provided.

ShortResource authoring details. Multiple authors can be provided.
Control0..*
TypeBase
10. EHDSDataSet.header.authorship.author[x]
Definition

Author responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.

ShortAuthor responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.
Control1..1
TypeChoice 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] NoteSeeChoice of Data Typesfor further information about how to use [x]
12. EHDSDataSet.header.authorship.datetime
Definition

Date and time of authoring/issuing

ShortDate and time of authoring/issuing
Control1..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. EHDSDataSet.header.status
Definition

Status of the resource or document

ShortStatus of the resource or document
Control1..1
TypeCodeableConcept
16. EHDSDataSet.header.language
Definition

Language in which the resource is written. Language is expressed by the IETF language tag.

ShortLanguage in which the resource is written. Language is expressed by the IETF language tag.
Control0..1
Binding

BCP 47

TypeCodeableConcept

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

0. EHDSDataSet
Definition

Common elements (including header) for all documents and their independently functioning parts, e.g FHIR resources.

ShortDataSet model
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. EHDSDataSet.header
Definition

Common header for all patient-related data

ShortCommon header for all patient-related data
Control1..1
TypeBase
4. EHDSDataSet.header.subject
Definition

Patient/subject information

ShortPatient/subject information
Control1..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSDataSet.header.identifier
Definition

Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).

ShortBusiness identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
8. EHDSDataSet.header.authorship
Definition

Resource authoring details. Multiple authors can be provided.

ShortResource authoring details. Multiple authors can be provided.
Control0..*
TypeBase
10. EHDSDataSet.header.authorship.author[x]
Definition

Author responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.

ShortAuthor responsible for the provided information. The exact role of the responsible author varies across use cases and is often specified in individual models.
Control1..1
TypeChoice 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] NoteSeeChoice of Data Typesfor further information about how to use [x]
12. EHDSDataSet.header.authorship.datetime
Definition

Date and time of authoring/issuing

ShortDate and time of authoring/issuing
Control1..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. EHDSDataSet.header.status
Definition

Status of the resource or document

ShortStatus of the resource or document
Control1..1
TypeCodeableConcept
16. EHDSDataSet.header.language
Definition

Language in which the resource is written. Language is expressed by the IETF language tag.

ShortLanguage in which the resource is written. Language is expressed by the IETF language tag.
Control0..1
Binding

BCP 47

TypeCodeableConcept