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/tree/main and changes regularly. See the Directory of published versions

Logical Model: EHDSAlert - Detailed Descriptions

Draft as of 2026-01-07

Definitions for the EHDSAlert logical model.

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

0. EHDSAlert
Definition

A statement higlighting a fact about the patient that requires clinical attention to ensure safety and prevent adverse outcomes. Example 1: intolerance to aspirin due to gastrointestinal bleeding. Example 2: intolerance to captopril because of cough (the patient is not allergic but can't tolerate it because of persistent cough) Example 3: the patient has a rare disease that requires special treatment Example 4: Airway Alert / Difficult Intubation Example 5: Diagnoses such as malignant hyperthermia, porphyria, and bleeding disorders; special treatments like anticoagulants or immunosuppressants; implanted devices. Example 6: transplanted organs illustrate other information that has to be taken into account in a healthcare contact. Example 7: participation in a clinical trial that has to be taken into account in a healthcare contact.


Base definition for all types defined in FHIR type system.

ShortAlert 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. EHDSAlert.header
Definition

Common header for all patient-related data

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

Patient/subject information

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

Business identifier for the object

ShortBusiness identifier for the object
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
8. EHDSAlert.header.authorship
Definition

Resource authoring details

ShortResource authoring details
Control1..*
TypeBase
10. EHDSAlert.header.authorship.author[x]
Definition

Author(s) by whom the resource was/were authored. Multiple authors could be provided.

ShortThe author of the alert statement, i.e. the setter of the alert.
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. EHDSAlert.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. EHDSAlert.header.lastUpdate
Definition

Date and time of the last update to the resource (may be used for technical corrections).

ShortDate and time of the last update to the resource (may be used for technical corrections).
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. EHDSAlert.header.status
Definition

Status of the resource or document

ShortCurrent status of the alert, indicates whether this alert is active and needs to be displayed to a user, or whether it is no longer needed or was entered in error.
Control1..1
Binding

hl7:Flag-status

TypeCodeableConcept
18. EHDSAlert.header.statusReason[x]
Definition

Reason for the current status of the resource.

ShortReason for the current status of the resource.
Control0..1
TypeChoice of: CodeableConcept, string
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
20. EHDSAlert.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
22. EHDSAlert.code
Definition

A coded representation of the alert.

ShortA coded representation of the alert.
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
24. EHDSAlert.description
Definition

Narrative representation of the alert.

ShortNarrative representation of the alert.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
26. EHDSAlert.priority
Definition

A code that identifies the priority of the alert.

ShortA code that identifies the priority of the alert.
Control0..1
Binding

hl7:Flag-priority-code

TypeCodeableConcept
28. EHDSAlert.period
Definition

Time period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.

ShortTime period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.
Control0..1
TypePeriod
30. EHDSAlert.sourceReference
Definition

A reference to the resource the alert is about.

ShortA reference to the resource the alert is about.
Control0..*
TypeReference(Resource)

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

0. EHDSAlert
Definition

A statement higlighting a fact about the patient that requires clinical attention to ensure safety and prevent adverse outcomes. Example 1: intolerance to aspirin due to gastrointestinal bleeding. Example 2: intolerance to captopril because of cough (the patient is not allergic but can't tolerate it because of persistent cough) Example 3: the patient has a rare disease that requires special treatment Example 4: Airway Alert / Difficult Intubation Example 5: Diagnoses such as malignant hyperthermia, porphyria, and bleeding disorders; special treatments like anticoagulants or immunosuppressants; implanted devices. Example 6: transplanted organs illustrate other information that has to be taken into account in a healthcare contact. Example 7: participation in a clinical trial that has to be taken into account in a healthcare contact.

ShortAlert model
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. EHDSAlert.header
4. EHDSAlert.header.authorship
6. EHDSAlert.header.authorship.author[x]
ShortThe author of the alert statement, i.e. the setter of the alert.
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
8. EHDSAlert.header.status
ShortCurrent status of the alert, indicates whether this alert is active and needs to be displayed to a user, or whether it is no longer needed or was entered in error.
Binding

hl7:Flag-status

10. EHDSAlert.code
Definition

A coded representation of the alert.

ShortA coded representation of the alert.
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
12. EHDSAlert.description
Definition

Narrative representation of the alert.

ShortNarrative representation of the alert.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. EHDSAlert.priority
Definition

A code that identifies the priority of the alert.

ShortA code that identifies the priority of the alert.
Control0..1
Binding

hl7:Flag-priority-code

TypeCodeableConcept
16. EHDSAlert.period
Definition

Time period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.

ShortTime period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.
Control0..1
TypePeriod
18. EHDSAlert.sourceReference
Definition

A reference to the resource the alert is about.

ShortA reference to the resource the alert is about.
Control0..*
TypeReference(Resource)

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

0. EHDSAlert
Definition

A statement higlighting a fact about the patient that requires clinical attention to ensure safety and prevent adverse outcomes. Example 1: intolerance to aspirin due to gastrointestinal bleeding. Example 2: intolerance to captopril because of cough (the patient is not allergic but can't tolerate it because of persistent cough) Example 3: the patient has a rare disease that requires special treatment Example 4: Airway Alert / Difficult Intubation Example 5: Diagnoses such as malignant hyperthermia, porphyria, and bleeding disorders; special treatments like anticoagulants or immunosuppressants; implanted devices. Example 6: transplanted organs illustrate other information that has to be taken into account in a healthcare contact. Example 7: participation in a clinical trial that has to be taken into account in a healthcare contact.

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

Common header for all patient-related data

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

Patient/subject information

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

Business identifier for the object

ShortBusiness identifier for the object
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
8. EHDSAlert.header.authorship
Definition

Resource authoring details

ShortResource authoring details
Control1..*
TypeBase
10. EHDSAlert.header.authorship.author[x]
Definition

Author(s) by whom the resource was/were authored. Multiple authors could be provided.

ShortThe author of the alert statement, i.e. the setter of the alert.
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. EHDSAlert.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. EHDSAlert.header.lastUpdate
Definition

Date and time of the last update to the resource (may be used for technical corrections).

ShortDate and time of the last update to the resource (may be used for technical corrections).
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. EHDSAlert.header.status
Definition

Status of the resource or document

ShortCurrent status of the alert, indicates whether this alert is active and needs to be displayed to a user, or whether it is no longer needed or was entered in error.
Control1..1
Binding

hl7:Flag-status

TypeCodeableConcept
18. EHDSAlert.header.statusReason[x]
Definition

Reason for the current status of the resource.

ShortReason for the current status of the resource.
Control0..1
TypeChoice of: CodeableConcept, string
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
20. EHDSAlert.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
22. EHDSAlert.code
Definition

A coded representation of the alert.

ShortA coded representation of the alert.
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
24. EHDSAlert.description
Definition

Narrative representation of the alert.

ShortNarrative representation of the alert.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
26. EHDSAlert.priority
Definition

A code that identifies the priority of the alert.

ShortA code that identifies the priority of the alert.
Control0..1
Binding

hl7:Flag-priority-code

TypeCodeableConcept
28. EHDSAlert.period
Definition

Time period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.

ShortTime period when alert is active. The period of time from the activation of the alert to inactivation of the alert. If the alert is active, the end of the period should be unspecified.
Control0..1
TypePeriod
30. EHDSAlert.sourceReference
Definition

A reference to the resource the alert is about.

ShortA reference to the resource the alert is about.
Control0..*
TypeReference(Resource)