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: EHDSCondition - Detailed Descriptions

Draft as of 2026-02-23

Definitions for the EHDSCondition 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. EHDSCondition
Definition | Model for a clinical condition, problem, diagnosis, or other event, situation, or issue that has risen to a level of concern. Base definition for all types defined in FHIR type system.
Short | Condition 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. EHDSCondition.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSCondition.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSCondition.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. EHDSCondition.header.author[x]
Definition | The author of the condition information.
Short | The author of the condition 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. EHDSCondition.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. EHDSCondition.header.status
Definition | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Short | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Control | 1..1
Binding | HL7 Condition Clinical Status Codes
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.7; PS (v3.4) A.2.2.2.1
14. EHDSCondition.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. EHDSCondition.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. EHDSCondition.problem
Definition | Code identifying the condition, problem or diagnosis
Short | Code identifying the condition, problem or diagnosis
Control | 1..1
Binding | ICD-10, SNOMED CT, ICD-O, Orphacode if rare disease is diagnosed
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2; PS (v3.4) A.2.2.2.1, A.2.3.1.1
20. EHDSCondition.onsetDate
Definition | Onset date of a problem/condition
Short | Onset date of a problem/condition
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.3; PS (v3.4) A.2.2.2.2, A.2.3.1.2
22. EHDSCondition.endDate
Definition | The date or estimated date that the condition resolved or went into remission
Short | The date or estimated date that the condition resolved or went into remission
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.4; PS (v3.4) A.2.2.2.3
24. EHDSCondition.category
Definition | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Short | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Control | 0..*
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.5
26. EHDSCondition.resolutionCircumstances
Definition | This field includes free text if the resolution circumstances are not already included in other fields such as surgical procedure, medical device, etc., e.g. hepatic cystectomy (this will be the resolution circumstances for the problem "hepatic cyst" and will be included in surgical procedures).
Short | Describes the reason for which the status of the problem changed from current to inactive (e.g. surgical procedure, medical treatment, etc.).
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.8; PS (v3.4) A.2.2.2.4
28. EHDSCondition.severity
Definition | A subjective assessment of the severity of the condition as evaluated by the clinician.
Short | A subjective assessment of the severity of the condition as evaluated by the clinician.
Control | 0..1
Binding | HL7 Condition/Diagnosis Severity; SNOMED CT
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.9
30. EHDSCondition.bodySite
Definition | The anatomical location including laterality where this condition manifests itself.
Short | The anatomical location including laterality where this condition manifests itself.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2
32. EHDSCondition.stage
Definition | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Short | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Control | 0..*
Binding | e.g. TNM, ICD-O-3, Bi-Rads, Li-Rads, …
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.10
34. EHDSCondition.diagnosisAssertionStatus
Definition | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Short | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Control | 0..1
Binding | HL7 Condition Verification Status
Type | CodeableConcept
Requirements | eHN Guideline PS (v3.4) A.2.3.1.3
36. EHDSCondition.specialistContact
Definition | Health Professional who may be specifically related to the problem, as a preferred contact.
Short | Health Professional who may be specifically related to the problem, as a preferred contact.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional
Requirements | ISO IPS, MyHealth@EU
38. EHDSCondition.externalResource
Definition | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Short | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Control | 0..*
Type | uri
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | MyHealth@EU

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

0. EHDSCondition
Definition | Model for a clinical condition, problem, diagnosis, or other event, situation, or issue that has risen to a level of concern.
Short | Condition model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSCondition.header
4. EHDSCondition.header.author[x]
Definition | The author of the condition information.
Short | The author of the condition information.
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
6. EHDSCondition.header.status
Definition | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Short | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Binding | HL7 Condition Clinical Status Codes
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.7; PS (v3.4) A.2.2.2.1
8. EHDSCondition.problem
Definition | Code identifying the condition, problem or diagnosis
Short | Code identifying the condition, problem or diagnosis
Control | 1..1
Binding | ICD-10, SNOMED CT, ICD-O, Orphacode if rare disease is diagnosed
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2; PS (v3.4) A.2.2.2.1, A.2.3.1.1
10. EHDSCondition.onsetDate
Definition | Onset date of a problem/condition
Short | Onset date of a problem/condition
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.3; PS (v3.4) A.2.2.2.2, A.2.3.1.2
12. EHDSCondition.endDate
Definition | The date or estimated date that the condition resolved or went into remission
Short | The date or estimated date that the condition resolved or went into remission
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.4; PS (v3.4) A.2.2.2.3
14. EHDSCondition.category
Definition | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Short | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Control | 0..*
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.5
16. EHDSCondition.resolutionCircumstances
Definition | This field includes free text if the resolution circumstances are not already included in other fields such as surgical procedure, medical device, etc., e.g. hepatic cystectomy (this will be the resolution circumstances for the problem "hepatic cyst" and will be included in surgical procedures).
Short | Describes the reason for which the status of the problem changed from current to inactive (e.g. surgical procedure, medical treatment, etc.).
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.8; PS (v3.4) A.2.2.2.4
18. EHDSCondition.severity
Definition | A subjective assessment of the severity of the condition as evaluated by the clinician.
Short | A subjective assessment of the severity of the condition as evaluated by the clinician.
Control | 0..1
Binding | HL7 Condition/Diagnosis Severity; SNOMED CT
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.9
20. EHDSCondition.bodySite
Definition | The anatomical location including laterality where this condition manifests itself.
Short | The anatomical location including laterality where this condition manifests itself.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2
22. EHDSCondition.stage
Definition | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Short | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Control | 0..*
Binding | e.g. TNM, ICD-O-3, Bi-Rads, Li-Rads, …
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.10
24. EHDSCondition.diagnosisAssertionStatus
Definition | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Short | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Control | 0..1
Binding | HL7 Condition Verification Status
Type | CodeableConcept
Requirements | eHN Guideline PS (v3.4) A.2.3.1.3
26. EHDSCondition.specialistContact
Definition | Health Professional who may be specifically related to the problem, as a preferred contact.
Short | Health Professional who may be specifically related to the problem, as a preferred contact.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional
Requirements | ISO IPS, MyHealth@EU
28. EHDSCondition.externalResource
Definition | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Short | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Control | 0..*
Type | uri
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | MyHealth@EU

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

0. EHDSCondition
Definition | Model for a clinical condition, problem, diagnosis, or other event, situation, or issue that has risen to a level of concern.
Short | Condition model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSCondition.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSCondition.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSCondition.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. EHDSCondition.header.author[x]
Definition | The author of the condition information.
Short | The author of the condition 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. EHDSCondition.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. EHDSCondition.header.status
Definition | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Short | Status of the condition/problem (e.g. active, resolved, inactive, etc)
Control | 1..1
Binding | HL7 Condition Clinical Status Codes
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.7; PS (v3.4) A.2.2.2.1
14. EHDSCondition.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. EHDSCondition.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. EHDSCondition.problem
Definition | Code identifying the condition, problem or diagnosis
Short | Code identifying the condition, problem or diagnosis
Control | 1..1
Binding | ICD-10, SNOMED CT, ICD-O, Orphacode if rare disease is diagnosed
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2; PS (v3.4) A.2.2.2.1, A.2.3.1.1
20. EHDSCondition.onsetDate
Definition | Onset date of a problem/condition
Short | Onset date of a problem/condition
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.3; PS (v3.4) A.2.2.2.2, A.2.3.1.2
22. EHDSCondition.endDate
Definition | The date or estimated date that the condition resolved or went into remission
Short | The date or estimated date that the condition resolved or went into remission
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.4; PS (v3.4) A.2.2.2.3
24. EHDSCondition.category
Definition | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Short | Category or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
Control | 0..*
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.5
26. EHDSCondition.resolutionCircumstances
Definition | This field includes free text if the resolution circumstances are not already included in other fields such as surgical procedure, medical device, etc., e.g. hepatic cystectomy (this will be the resolution circumstances for the problem "hepatic cyst" and will be included in surgical procedures).
Short | Describes the reason for which the status of the problem changed from current to inactive (e.g. surgical procedure, medical treatment, etc.).
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.8; PS (v3.4) A.2.2.2.4
28. EHDSCondition.severity
Definition | A subjective assessment of the severity of the condition as evaluated by the clinician.
Short | A subjective assessment of the severity of the condition as evaluated by the clinician.
Control | 0..1
Binding | HL7 Condition/Diagnosis Severity; SNOMED CT
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.9
30. EHDSCondition.bodySite
Definition | The anatomical location including laterality where this condition manifests itself.
Short | The anatomical location including laterality where this condition manifests itself.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.2
32. EHDSCondition.stage
Definition | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Short | Stage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
Control | 0..*
Binding | e.g. TNM, ICD-O-3, Bi-Rads, Li-Rads, …
Type | CodeableConcept
Requirements | eHN Guideline HDR (v1.1): A.2.6.1.10
34. EHDSCondition.diagnosisAssertionStatus
Definition | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Short | Assertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
Control | 0..1
Binding | HL7 Condition Verification Status
Type | CodeableConcept
Requirements | eHN Guideline PS (v3.4) A.2.3.1.3
36. EHDSCondition.specialistContact
Definition | Health Professional who may be specifically related to the problem, as a preferred contact.
Short | Health Professional who may be specifically related to the problem, as a preferred contact.
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional
Requirements | ISO IPS, MyHealth@EU
38. EHDSCondition.externalResource
Definition | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Short | External Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
Control | 0..*
Type | uri
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | MyHealth@EU