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: EHDSTravelHistory - Detailed Descriptions

Draft as of 2026-02-23

Definitions for the EHDSTravelHistory 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. EHDSTravelHistory
Definition | Relevant information about the patient's recent travel history, for one visit Base definition for all types defined in FHIR type system.
Short | Travel history 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. EHDSTravelHistory.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSTravelHistory.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSTravelHistory.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. EHDSTravelHistory.header.author[x]
Definition | Author(s) responsible for the provided information. The exact role of the responsible author varies across use cases and is specific to individual models.
Short | Author(s) responsible for the provided information.
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. EHDSTravelHistory.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. EHDSTravelHistory.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
14. EHDSTravelHistory.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. EHDSTravelHistory.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. EHDSTravelHistory.country
Definition | Country visited
Short | Country visited
Control | 1..1
Binding | ISO 3166
Type | CodeableConcept
Requirements | eHN PS Guideline
20. EHDSTravelHistory.period
Definition | The period during which the patient visited the country
Short | Date of entry and departure
Control | 0..1
Type | Period
Requirements | eHN PS Guideline

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

0. EHDSTravelHistory
Definition | Relevant information about the patient's recent travel history, for one visit
Short | Travel history model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSTravelHistory.country
Definition | Country visited
Short | Country visited
Control | 1..1
Binding | ISO 3166
Type | CodeableConcept
Requirements | eHN PS Guideline
4. EHDSTravelHistory.period
Definition | The period during which the patient visited the country
Short | Date of entry and departure
Control | 0..1
Type | Period
Requirements | eHN PS Guideline

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

0. EHDSTravelHistory
Definition | Relevant information about the patient's recent travel history, for one visit
Short | Travel history model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSTravelHistory.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSTravelHistory.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSTravelHistory.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. EHDSTravelHistory.header.author[x]
Definition | Author(s) responsible for the provided information. The exact role of the responsible author varies across use cases and is specific to individual models.
Short | Author(s) responsible for the provided information.
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. EHDSTravelHistory.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. EHDSTravelHistory.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
14. EHDSTravelHistory.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. EHDSTravelHistory.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. EHDSTravelHistory.country
Definition | Country visited
Short | Country visited
Control | 1..1
Binding | ISO 3166
Type | CodeableConcept
Requirements | eHN PS Guideline
20. EHDSTravelHistory.period
Definition | The period during which the patient visited the country
Short | Date of entry and departure
Control | 0..1
Type | Period
Requirements | eHN PS Guideline