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
| 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. |
| Short | Alert 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. EHDSAlert.header | |
| Definition | Common header for all patient-related data |
| Short | Common header for all patient-related data |
| Control | 1..1 |
| Type | Base |
| 4. EHDSAlert.header.subject | |
| Definition | Patient/subject information |
| Short | Patient/subject information |
| Control | 1..1 |
| Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient |
| 6. EHDSAlert.header.identifier | |
| Definition | Business identifier for the object |
| Short | Business identifier for the object |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 0..* |
| Type | Identifier |
| 8. EHDSAlert.header.authorship | |
| Definition | Resource authoring details |
| Short | Resource authoring details |
| Control | 1..* |
| Type | Base |
| 10. EHDSAlert.header.authorship.author[x] | |
| Definition | Author(s) by whom the resource was/were authored. Multiple authors could be provided. |
| Short | The author of the alert statement, i.e. the setter of the alert. |
| Control | 1..1 |
| 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] |
| 12. EHDSAlert.header.authorship.datetime | |
| Definition | Date and time of authoring/issuing |
| Short | Date and time of authoring/issuing |
| Control | 1..1 |
| Type | dateTime |
| Primitive Value | This 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). |
| Short | Date and time of the last update to the resource (may be used for technical corrections). |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 16. EHDSAlert.header.status | |
| Definition | Status of the resource or document |
| Short | Current 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. |
| Control | 1..1 |
| Binding | hl7:Flag-status |
| Type | CodeableConcept |
| 18. EHDSAlert.header.statusReason[x] | |
| Definition | Reason for the current status of the resource. |
| Short | Reason for the current status of the resource. |
| Control | 0..1 |
| Type | Choice of: CodeableConcept, string |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Primitive Value | This 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. |
| Short | Language in which the resource is written. Language is expressed by the IETF language tag. |
| Control | 0..1 |
| Binding | BCP 47 |
| Type | CodeableConcept |
| 22. EHDSAlert.code | |
| Definition | A coded representation of the alert. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 24. EHDSAlert.description | |
| Definition | Narrative representation of the alert. |
| Short | Narrative representation of the alert. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This 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. |
| Short | A code that identifies the priority of the alert. |
| Control | 0..1 |
| Binding | hl7:Flag-priority-code |
| Type | CodeableConcept |
| 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. |
| Short | 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. |
| Control | 0..1 |
| Type | Period |
| 30. EHDSAlert.sourceReference | |
| Definition | A reference to the resource the alert is about. |
| Short | A reference to the resource the alert is about. |
| Control | 0..* |
| Type | Reference(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. |
| Short | Alert model |
| Logical Model | Instances 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] | |
| Short | The author of the alert statement, i.e. the setter of the alert. |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 8. EHDSAlert.header.status | |
| Short | Current 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. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 12. EHDSAlert.description | |
| Definition | Narrative representation of the alert. |
| Short | Narrative representation of the alert. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This 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. |
| Short | A code that identifies the priority of the alert. |
| Control | 0..1 |
| Binding | hl7:Flag-priority-code |
| Type | CodeableConcept |
| 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. |
| Short | 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. |
| Control | 0..1 |
| Type | Period |
| 18. EHDSAlert.sourceReference | |
| Definition | A reference to the resource the alert is about. |
| Short | A reference to the resource the alert is about. |
| Control | 0..* |
| Type | Reference(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. |
| Short | Alert model |
| Control | 0..* |
| Is Modifier | false |
| Logical Model | Instances 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 |
| Short | Common header for all patient-related data |
| Control | 1..1 |
| Type | Base |
| 4. EHDSAlert.header.subject | |
| Definition | Patient/subject information |
| Short | Patient/subject information |
| Control | 1..1 |
| Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient |
| 6. EHDSAlert.header.identifier | |
| Definition | Business identifier for the object |
| Short | Business identifier for the object |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 0..* |
| Type | Identifier |
| 8. EHDSAlert.header.authorship | |
| Definition | Resource authoring details |
| Short | Resource authoring details |
| Control | 1..* |
| Type | Base |
| 10. EHDSAlert.header.authorship.author[x] | |
| Definition | Author(s) by whom the resource was/were authored. Multiple authors could be provided. |
| Short | The author of the alert statement, i.e. the setter of the alert. |
| Control | 1..1 |
| 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] |
| 12. EHDSAlert.header.authorship.datetime | |
| Definition | Date and time of authoring/issuing |
| Short | Date and time of authoring/issuing |
| Control | 1..1 |
| Type | dateTime |
| Primitive Value | This 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). |
| Short | Date and time of the last update to the resource (may be used for technical corrections). |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 16. EHDSAlert.header.status | |
| Definition | Status of the resource or document |
| Short | Current 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. |
| Control | 1..1 |
| Binding | hl7:Flag-status |
| Type | CodeableConcept |
| 18. EHDSAlert.header.statusReason[x] | |
| Definition | Reason for the current status of the resource. |
| Short | Reason for the current status of the resource. |
| Control | 0..1 |
| Type | Choice of: CodeableConcept, string |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Primitive Value | This 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. |
| Short | Language in which the resource is written. Language is expressed by the IETF language tag. |
| Control | 0..1 |
| Binding | BCP 47 |
| Type | CodeableConcept |
| 22. EHDSAlert.code | |
| Definition | A coded representation of the alert. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 24. EHDSAlert.description | |
| Definition | Narrative representation of the alert. |
| Short | Narrative representation of the alert. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This 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. |
| Short | A code that identifies the priority of the alert. |
| Control | 0..1 |
| Binding | hl7:Flag-priority-code |
| Type | CodeableConcept |
| 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. |
| Short | 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. |
| Control | 0..1 |
| Type | Period |
| 30. EHDSAlert.sourceReference | |
| Definition | A reference to the resource the alert is about. |
| Short | A reference to the resource the alert is about. |
| Control | 0..* |
| Type | Reference(Resource) |