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: EHDSConditionLaboratoryObligations - Detailed Descriptions

Draft as of 2026-03-16

Definitions for the EHDSConditionLaboratoryObligations logical model.

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.

ShortCondition 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. EHDSCondition.header
Definition

Basic metadata for this information

ShortBasic metadata for this information
Control1..1
TypeBase
Obligations
    ObligationsActor
    SHALL:able-to-populateProducer
    4. EHDSCondition.header.subject
    Definition

    Patient/subject information

    ShortPatient/subject information
    Control1..1
    Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
    Obligations
      ObligationsActorDocumentation
      SHALL:able-to-populateProducer

      EHR systems SHALL provide information about the subject of care (patient).

      SHALL:displayConsumer

      EHR system SHALL render information about the subject of care in such a way that unambiguous assignment to the care subject is preserved.

      SHALL:processConsumer

      Information about the subject of care SHALL be processed by the EHR system in such a way that the identity of the subject of care cannot be confused.

      6. EHDSCondition.header.identifier
      Definition

      Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).

      ShortBusiness identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      TypeIdentifier
      Obligations
        ObligationsActor
        SHOULD:able-to-populateProducer
        8. EHDSCondition.header.author[x]
        Definition

        The author of the condition information.

        ShortThe author of the condition information.
        Control0..*
        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]
        10. EHDSCondition.header.date
        Definition

        Date and optionally time of authoring/issuing

        ShortDate and optionally time of authoring/issuing
        Control0..1
        TypedateTime
        Primitive ValueThis 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)

        ShortStatus of the condition/problem (e.g. active, resolved, inactive, etc)
        Control1..1
        Binding

        HL7 Condition Clinical Status Codes

        TypeCodeableConcept
        Obligations
          ObligationsActor
          SHALL:able-to-populateProducer
          SHOULD:displayConsumer
          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.

          ShortSource 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.
          Control0..1
          TypeCodeableConcept
          16. EHDSCondition.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
          18. EHDSCondition.problem
          Definition

          Code identifying the condition, problem or diagnosis

          ShortCode identifying the condition, problem or diagnosis
          Control1..1
          Binding

          ICD-10, SNOMED CT, ICD-O, Orphacode if rare disease is diagnosed

          TypeCodeableConcept
          Obligations
            ObligationsActor
            SHALL:able-to-populateProducer
            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

            ShortOnset date of a problem/condition
            Control0..1
            TypedateTime
            Primitive ValueThis 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

            ShortThe date or estimated date that the condition resolved or went into remission
            Control0..1
            TypedateTime
            Primitive ValueThis 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).

            ShortCategory or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
            Control0..*
            TypeCodeableConcept
            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).

            ShortDescribes the reason for which the status of the problem changed from current to inactive (e.g. surgical procedure, medical treatment, etc.).
            Control0..1
            Typestring
            Primitive ValueThis 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.

            ShortA subjective assessment of the severity of the condition as evaluated by the clinician.
            Control0..1
            Binding

            HL7 Condition/Diagnosis Severity; SNOMED CT

            TypeCodeableConcept
            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.

            ShortThe anatomical location including laterality where this condition manifests itself.
            Control0..*
            Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
            Obligations
              ObligationsActor
              SHOULD:able-to-populateProducer
              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.

              ShortStage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
              Control0..*
              Binding

              e.g. TNM, ICD-O-3, Bi-Rads, Li-Rads, …

              TypeCodeableConcept
              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.

              ShortAssertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
              Control0..1
              Binding

              HL7 Condition Verification Status

              TypeCodeableConcept
              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.

              ShortHealth Professional who may be specifically related to the problem, as a preferred contact.
              Control0..*
              Typehttp://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.

              ShortExternal Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
              Control0..*
              Typeuri
              Primitive ValueThis 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
              Logical ModelInstances of this logical model are not marked to be the target of a Reference
              2. EHDSCondition.header
              Obligations
                ObligationsActor
                SHALL:able-to-populateProducer
                4. EHDSCondition.header.subject
                Obligations
                  ObligationsActorDocumentation
                  SHALL:able-to-populateProducer

                  EHR systems SHALL provide information about the subject of care (patient).

                  SHALL:displayConsumer

                  EHR system SHALL render information about the subject of care in such a way that unambiguous assignment to the care subject is preserved.

                  SHALL:processConsumer

                  Information about the subject of care SHALL be processed by the EHR system in such a way that the identity of the subject of care cannot be confused.

                  6. EHDSCondition.header.identifier
                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Obligations
                    ObligationsActor
                    SHOULD:able-to-populateProducer
                    8. EHDSCondition.header.status
                    Obligations
                      ObligationsActor
                      SHALL:able-to-populateProducer
                      SHOULD:displayConsumer
                      10. EHDSCondition.problem
                      Obligations
                        ObligationsActor
                        SHALL:able-to-populateProducer
                        12. EHDSCondition.bodySite
                        Obligations
                          ObligationsActor
                          SHOULD:able-to-populateProducer

                          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.

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

                          Basic metadata for this information

                          ShortBasic metadata for this information
                          Control1..1
                          TypeBase
                          Obligations
                            ObligationsActor
                            SHALL:able-to-populateProducer
                            4. EHDSCondition.header.subject
                            Definition

                            Patient/subject information

                            ShortPatient/subject information
                            Control1..1
                            Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
                            Obligations
                              ObligationsActorDocumentation
                              SHALL:able-to-populateProducer

                              EHR systems SHALL provide information about the subject of care (patient).

                              SHALL:displayConsumer

                              EHR system SHALL render information about the subject of care in such a way that unambiguous assignment to the care subject is preserved.

                              SHALL:processConsumer

                              Information about the subject of care SHALL be processed by the EHR system in such a way that the identity of the subject of care cannot be confused.

                              6. EHDSCondition.header.identifier
                              Definition

                              Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).

                              ShortBusiness identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
                              NoteThis is a business identifier, not a resource identifier (see discussion)
                              Control0..*
                              TypeIdentifier
                              Obligations
                                ObligationsActor
                                SHOULD:able-to-populateProducer
                                8. EHDSCondition.header.author[x]
                                Definition

                                The author of the condition information.

                                ShortThe author of the condition information.
                                Control0..*
                                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]
                                10. EHDSCondition.header.date
                                Definition

                                Date and optionally time of authoring/issuing

                                ShortDate and optionally time of authoring/issuing
                                Control0..1
                                TypedateTime
                                Primitive ValueThis 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)

                                ShortStatus of the condition/problem (e.g. active, resolved, inactive, etc)
                                Control1..1
                                Binding

                                HL7 Condition Clinical Status Codes

                                TypeCodeableConcept
                                Obligations
                                  ObligationsActor
                                  SHALL:able-to-populateProducer
                                  SHOULD:displayConsumer
                                  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.

                                  ShortSource 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.
                                  Control0..1
                                  TypeCodeableConcept
                                  16. EHDSCondition.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
                                  18. EHDSCondition.problem
                                  Definition

                                  Code identifying the condition, problem or diagnosis

                                  ShortCode identifying the condition, problem or diagnosis
                                  Control1..1
                                  Binding

                                  ICD-10, SNOMED CT, ICD-O, Orphacode if rare disease is diagnosed

                                  TypeCodeableConcept
                                  Obligations
                                    ObligationsActor
                                    SHALL:able-to-populateProducer
                                    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

                                    ShortOnset date of a problem/condition
                                    Control0..1
                                    TypedateTime
                                    Primitive ValueThis 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

                                    ShortThe date or estimated date that the condition resolved or went into remission
                                    Control0..1
                                    TypedateTime
                                    Primitive ValueThis 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).

                                    ShortCategory or categories of the problem (e.g. POA - present on admission, HAC - hospital aquired condition, and other categorisations).
                                    Control0..*
                                    TypeCodeableConcept
                                    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).

                                    ShortDescribes the reason for which the status of the problem changed from current to inactive (e.g. surgical procedure, medical treatment, etc.).
                                    Control0..1
                                    Typestring
                                    Primitive ValueThis 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.

                                    ShortA subjective assessment of the severity of the condition as evaluated by the clinician.
                                    Control0..1
                                    Binding

                                    HL7 Condition/Diagnosis Severity; SNOMED CT

                                    TypeCodeableConcept
                                    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.

                                    ShortThe anatomical location including laterality where this condition manifests itself.
                                    Control0..*
                                    Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
                                    Obligations
                                      ObligationsActor
                                      SHOULD:able-to-populateProducer
                                      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.

                                      ShortStage/grade usually assessed formally using a specific staging/grading system. Multiple assessment systems could be used.
                                      Control0..*
                                      Binding

                                      e.g. TNM, ICD-O-3, Bi-Rads, Li-Rads, …

                                      TypeCodeableConcept
                                      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.

                                      ShortAssertion about the certainty associated with a diagnosis. Diagnostic and/or clinical evidence of condition.
                                      Control0..1
                                      Binding

                                      HL7 Condition Verification Status

                                      TypeCodeableConcept
                                      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.

                                      ShortHealth Professional who may be specifically related to the problem, as a preferred contact.
                                      Control0..*
                                      Typehttp://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.

                                      ShortExternal Resource which may be specifically related to the problem, for example a link between a rare disease problem and the corresponding guidelines.
                                      Control0..*
                                      Typeuri
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Requirements

                                      MyHealth@EU