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: EHDSPregnancyHistory - Detailed Descriptions

Draft as of 2026-02-23

Definitions for the EHDSPregnancyHistory 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. EHDSPregnancyHistory
Definition | Pregnancy history for one pregnancy Base definition for all types defined in FHIR type system.
Short | Pregnancy 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. EHDSPregnancyHistory.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSPregnancyHistory.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSPregnancyHistory.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. EHDSPregnancyHistory.header.author[x]
Definition | Author of this observation
Short | Author of this observation
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. EHDSPregnancyHistory.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. EHDSPregnancyHistory.header.status
Definition | Status of this observation
Short | Status of this observation
Control | 1..1
Type | CodeableConcept
14. EHDSPregnancyHistory.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. EHDSPregnancyHistory.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. EHDSPregnancyHistory.endDate
Definition | The end date of the pregnancy.
Short | The end date of the pregnancy.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
20. EHDSPregnancyHistory.outcome
Definition | The outcome of the pregnancy.
Short | The outcome of the pregnancy.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS
22. EHDSPregnancyHistory.numberOfFetuses
Definition | Number of children/fetuses in this specific pregnancy
Short | Number of children/fetuses in this specific pregnancy
Control | 0..1
Type | integer
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
24. EHDSPregnancyHistory.note
Definition | Free text notes by the health professional
Short | Free text notes by the health professional
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS

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

0. EHDSPregnancyHistory
Definition | Pregnancy history for one pregnancy
Short | Pregnancy history model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSPregnancyHistory.header
4. EHDSPregnancyHistory.header.author[x]
Definition | Author of this observation
Short | Author of this observation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
6. EHDSPregnancyHistory.header.status
Definition | Status of this observation
Short | Status of this observation
8. EHDSPregnancyHistory.endDate
Definition | The end date of the pregnancy.
Short | The end date of the pregnancy.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
10. EHDSPregnancyHistory.outcome
Definition | The outcome of the pregnancy.
Short | The outcome of the pregnancy.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS
12. EHDSPregnancyHistory.numberOfFetuses
Definition | Number of children/fetuses in this specific pregnancy
Short | Number of children/fetuses in this specific pregnancy
Control | 0..1
Type | integer
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
14. EHDSPregnancyHistory.note
Definition | Free text notes by the health professional
Short | Free text notes by the health professional
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS

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

0. EHDSPregnancyHistory
Definition | Pregnancy history for one pregnancy
Short | Pregnancy 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. EHDSPregnancyHistory.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSPregnancyHistory.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSPregnancyHistory.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. EHDSPregnancyHistory.header.author[x]
Definition | Author of this observation
Short | Author of this observation
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. EHDSPregnancyHistory.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. EHDSPregnancyHistory.header.status
Definition | Status of this observation
Short | Status of this observation
Control | 1..1
Type | CodeableConcept
14. EHDSPregnancyHistory.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. EHDSPregnancyHistory.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. EHDSPregnancyHistory.endDate
Definition | The end date of the pregnancy.
Short | The end date of the pregnancy.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
20. EHDSPregnancyHistory.outcome
Definition | The outcome of the pregnancy.
Short | The outcome of the pregnancy.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS
22. EHDSPregnancyHistory.numberOfFetuses
Definition | Number of children/fetuses in this specific pregnancy
Short | Number of children/fetuses in this specific pregnancy
Control | 0..1
Type | integer
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
24. EHDSPregnancyHistory.note
Definition | Free text notes by the health professional
Short | Free text notes by the health professional
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS