EHDS Logical Information Models
0.3.0 - qa-preview
EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.3.0 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
| Draft as of 2026-02-09 |
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 | Basic metadata for this information |
| Short | Basic metadata for this information |
| 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, 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. EHDSAlert.header.author[x] | |
| Definition | The author of the alert statement, i.e. the setter of the alert. |
| Short | The author of the alert statement, i.e. the setter of the alert. |
| 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. EHDSAlert.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. EHDSAlert.header.status | |
| Definition | 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. |
| 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 |
| 14. EHDSAlert.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. 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 |
| 18. EHDSAlert.code | |
| Definition | A coded representation of the alert. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 20. 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 |
| 22. 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 |
| 24. 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 |
| 26. 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 | 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.author[x] | |
| Definition | The author of the alert statement, i.e. the setter of the alert. |
| 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] |
| 6. EHDSAlert.header.status | |
| Definition | 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. |
| 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 |
| 8. EHDSAlert.code | |
| Definition | A coded representation of the alert. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 10. 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 |
| 12. 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 |
| 14. 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 |
| 16. 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 | 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 | Basic metadata for this information |
| Short | Basic metadata for this information |
| 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, 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. EHDSAlert.header.author[x] | |
| Definition | The author of the alert statement, i.e. the setter of the alert. |
| Short | The author of the alert statement, i.e. the setter of the alert. |
| 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. EHDSAlert.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. EHDSAlert.header.status | |
| Definition | 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. |
| 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 |
| 14. EHDSAlert.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. 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 |
| 18. EHDSAlert.code | |
| Definition | A coded representation of the alert. |
| Short | A coded representation of the alert. |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 20. 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 |
| 22. 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 |
| 24. 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 |
| 26. 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 | Resource |