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/ and changes regularly. See the Directory of published versions

Logical Model: EHDSObservation - Detailed Descriptions

Draft as of 2026-01-21

Definitions for the EHDSObservation logical model.

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

0. EHDSObservation
Definition

EHDS refined base model for Observation information


Base definition for all types defined in FHIR type system.

ShortObservation 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. EHDSObservation.header
Definition

Common header for all patient-related data

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

Patient/subject information

ShortPatient who is receiving health care. This patient might be different from the direct subject of the observation.
Control1..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSObservation.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. EHDSObservation.header.authorship
Definition

Resource authoring details

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

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

ShortAuthor(s) by whom the resource was/were authored. Multiple authors could be provided.
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. EHDSObservation.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. EHDSObservation.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. EHDSObservation.header.status
Definition

Status of the resource or document

ShortStatus of the resource or document
Control1..1
Binding

HL7 Observation status

TypeCodeableConcept
18. EHDSObservation.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. EHDSObservation.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. EHDSObservation.header.directSubject[x]
Definition

The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device

ShortThe direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatientAnimal, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice, 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/EHDSProcedure
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
24. EHDSObservation.observationDate[x]
Definition

Clinically relevant time or time period for the observation

ShortClinically relevant time or time period for the observation
Control1..1
TypeChoice of: dateTime, Period
[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
26. EHDSObservation.code
Definition

Code representing the observation using the agreed code systems.

ShortObservation code
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
28. EHDSObservation.name
Definition

Name of the observation

ShortName of the observation
Control1..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
30. EHDSObservation.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
32. EHDSObservation.method
Definition

Observation method (measurement principle) to obtain the result.

ShortObservation method
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
34. EHDSObservation.specimen
Definition

Specimen used for this observation.

ShortSpecimen used for this observation.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
36. EHDSObservation.order
Definition

Identifies order and order placer this observation belongs to

ShortIdentifies order and order placer this observation belongs to
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
38. EHDSObservation.performer[x]
Definition

Performer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.

ShortPerformer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
40. EHDSObservation.anatomicLocation
Definition

Anatomic location and laterality where the observation was performed.

ShortAnatomic location and laterality where the observation was performed.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
42. EHDSObservation.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
44. EHDSObservation.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
46. EHDSObservation.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
48. EHDSObservation.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
50. EHDSObservation.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
52. EHDSObservation.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
Examplecoded result: For example this could be a code describing identified bacteria or other microorganism identified, description of urinary concernment, jaundice (hyperbilirubinemia), scoring (GCS), etc.
54. EHDSObservation.result.value.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
56. EHDSObservation.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
58. EHDSObservation.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
60. EHDSObservation.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
62. EHDSObservation.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
64. EHDSObservation.resultDescription
Definition

Comments and narrative representation of the observation result and findings.

ShortComments and narrative representation of the observation result and findings.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. EHDSObservation.component
Definition

Component in case the observation consists of multiple sub-observations (e.g. blood pressure).

ShortComponent in case the observation consists of multiple sub-observations (e.g. blood pressure).
Control0..*
TypeBase
68. EHDSObservation.component.code
Definition

Code representing the observation using the agreed code systems.

ShortCode representing the observation using the agreed code systems.
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
70. EHDSObservation.component.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
72. EHDSObservation.component.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
74. EHDSObservation.component.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
76. EHDSObservation.component.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
78. EHDSObservation.component.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
80. EHDSObservation.component.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
82. EHDSObservation.component.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
84. EHDSObservation.component.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
86. EHDSObservation.component.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
88. EHDSObservation.component.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
90. EHDSObservation.component.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
92. EHDSObservation.derivedFrom[x]
Definition

Reference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

ShortReference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSImagingStudy
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
94. EHDSObservation.triggeredBy[x]
Definition

References to the observation(s) that triggered the performance of this observation.

ShortReferences to the observation(s) that triggered the performance of this observation.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
96. EHDSObservation.hasMember[x]
Definition

This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

ShortThis observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]

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

0. EHDSObservation
Definition

EHDS refined base model for Observation information

ShortObservation model
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. EHDSObservation.header
4. EHDSObservation.header.subject
ShortPatient who is receiving health care. This patient might be different from the direct subject of the observation.
6. EHDSObservation.header.status
Binding

HL7 Observation status

8. EHDSObservation.header.directSubject[x]
Definition

The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device

ShortThe direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatientAnimal, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice, 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/EHDSProcedure
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
10. EHDSObservation.observationDate[x]
Definition

Clinically relevant time or time period for the observation

ShortClinically relevant time or time period for the observation
Control1..1
TypeChoice of: dateTime, Period
[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
12. EHDSObservation.code
Definition

Code representing the observation using the agreed code systems.

ShortObservation code
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
14. EHDSObservation.name
Definition

Name of the observation

ShortName of the observation
Control1..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. EHDSObservation.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
18. EHDSObservation.method
Definition

Observation method (measurement principle) to obtain the result.

ShortObservation method
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
20. EHDSObservation.specimen
Definition

Specimen used for this observation.

ShortSpecimen used for this observation.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
22. EHDSObservation.order
Definition

Identifies order and order placer this observation belongs to

ShortIdentifies order and order placer this observation belongs to
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
24. EHDSObservation.performer[x]
Definition

Performer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.

ShortPerformer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
26. EHDSObservation.anatomicLocation
Definition

Anatomic location and laterality where the observation was performed.

ShortAnatomic location and laterality where the observation was performed.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
28. EHDSObservation.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
30. EHDSObservation.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
32. EHDSObservation.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
34. EHDSObservation.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
36. EHDSObservation.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
38. EHDSObservation.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
Examplecoded result: For example this could be a code describing identified bacteria or other microorganism identified, description of urinary concernment, jaundice (hyperbilirubinemia), scoring (GCS), etc.
40. EHDSObservation.result.value.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
42. EHDSObservation.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
44. EHDSObservation.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
46. EHDSObservation.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
48. EHDSObservation.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
50. EHDSObservation.resultDescription
Definition

Comments and narrative representation of the observation result and findings.

ShortComments and narrative representation of the observation result and findings.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
52. EHDSObservation.component
Definition

Component in case the observation consists of multiple sub-observations (e.g. blood pressure).

ShortComponent in case the observation consists of multiple sub-observations (e.g. blood pressure).
Control0..*
TypeBase
54. EHDSObservation.component.code
Definition

Code representing the observation using the agreed code systems.

ShortCode representing the observation using the agreed code systems.
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
56. EHDSObservation.component.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
58. EHDSObservation.component.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
60. EHDSObservation.component.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
62. EHDSObservation.component.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
64. EHDSObservation.component.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
66. EHDSObservation.component.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
68. EHDSObservation.component.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
70. EHDSObservation.component.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
72. EHDSObservation.component.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
74. EHDSObservation.component.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
76. EHDSObservation.component.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
78. EHDSObservation.derivedFrom[x]
Definition

Reference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

ShortReference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSImagingStudy
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
80. EHDSObservation.triggeredBy[x]
Definition

References to the observation(s) that triggered the performance of this observation.

ShortReferences to the observation(s) that triggered the performance of this observation.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
82. EHDSObservation.hasMember[x]
Definition

This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

ShortThis observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]

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

0. EHDSObservation
Definition

EHDS refined base model for Observation information

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

Common header for all patient-related data

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

Patient/subject information

ShortPatient who is receiving health care. This patient might be different from the direct subject of the observation.
Control1..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSObservation.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. EHDSObservation.header.authorship
Definition

Resource authoring details

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

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

ShortAuthor(s) by whom the resource was/were authored. Multiple authors could be provided.
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. EHDSObservation.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. EHDSObservation.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. EHDSObservation.header.status
Definition

Status of the resource or document

ShortStatus of the resource or document
Control1..1
Binding

HL7 Observation status

TypeCodeableConcept
18. EHDSObservation.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. EHDSObservation.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. EHDSObservation.header.directSubject[x]
Definition

The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device

ShortThe direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatientAnimal, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice, 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/EHDSProcedure
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
24. EHDSObservation.observationDate[x]
Definition

Clinically relevant time or time period for the observation

ShortClinically relevant time or time period for the observation
Control1..1
TypeChoice of: dateTime, Period
[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
26. EHDSObservation.code
Definition

Code representing the observation using the agreed code systems.

ShortObservation code
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
28. EHDSObservation.name
Definition

Name of the observation

ShortName of the observation
Control1..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
30. EHDSObservation.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
32. EHDSObservation.method
Definition

Observation method (measurement principle) to obtain the result.

ShortObservation method
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
34. EHDSObservation.specimen
Definition

Specimen used for this observation.

ShortSpecimen used for this observation.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
36. EHDSObservation.order
Definition

Identifies order and order placer this observation belongs to

ShortIdentifies order and order placer this observation belongs to
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
38. EHDSObservation.performer[x]
Definition

Performer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.

ShortPerformer of the observation. Some test could be performed by the patient himself or by a care giver. Those are in the scope of this deliverable under specified conditions.
Control0..1
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
40. EHDSObservation.anatomicLocation
Definition

Anatomic location and laterality where the observation was performed.

ShortAnatomic location and laterality where the observation was performed.
Control0..1
Typehttp://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
42. EHDSObservation.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
44. EHDSObservation.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
46. EHDSObservation.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
48. EHDSObservation.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
50. EHDSObservation.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
52. EHDSObservation.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
Examplecoded result: For example this could be a code describing identified bacteria or other microorganism identified, description of urinary concernment, jaundice (hyperbilirubinemia), scoring (GCS), etc.
54. EHDSObservation.result.value.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
56. EHDSObservation.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
58. EHDSObservation.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
60. EHDSObservation.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
62. EHDSObservation.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
64. EHDSObservation.resultDescription
Definition

Comments and narrative representation of the observation result and findings.

ShortComments and narrative representation of the observation result and findings.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. EHDSObservation.component
Definition

Component in case the observation consists of multiple sub-observations (e.g. blood pressure).

ShortComponent in case the observation consists of multiple sub-observations (e.g. blood pressure).
Control0..*
TypeBase
68. EHDSObservation.component.code
Definition

Code representing the observation using the agreed code systems.

ShortCode representing the observation using the agreed code systems.
Control1..1
Binding

LOINC, NPU, SNOMED CT

TypeCodeableConcept
70. EHDSObservation.component.originalName
Definition

Original (conventional) name of the observation

ShortOriginal (conventional) name of the observation
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
72. EHDSObservation.component.result
Definition

Result of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.

ShortResult of the observation including text, numeric and coded results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
Control0..1
TypeBase
74. EHDSObservation.component.result.value
Definition

Observation result value according to the type of observation.

ShortObservation result value according to the type of observation.
Control1..1
TypeBase
76. EHDSObservation.component.result.value.text
Definition

Observation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.

ShortObservation result value as a text. Should be used only if coded result value is not expected otherwise use valueCodeableConcept.text.
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
78. EHDSObservation.component.result.value.numeric
Definition

Observation result value as a quantity, result units of the measurement should be provided.

ShortObservation result value as a quantity, result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeQuantity
80. EHDSObservation.component.result.value.range
Definition

Observation result value as a range (open or closed). Result units of the measurement should be provided.

ShortObservation result value as a range (open or closed). Result units of the measurement should be provided.
Control0..1
Binding

UCUM for units

TypeRange
82. EHDSObservation.component.result.value.coded
Definition

Observation result value from a valid code system

ShortObservation result value from a valid code system
Control0..1
Binding

SNOMED CT

TypeCodeableConcept
84. EHDSObservation.component.result.uncertainty
Definition

Measurement uncertainty type and interval if needed.

ShortMeasurement uncertainty type and interval if needed.
Control0..1
TypeBase
86. EHDSObservation.component.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortProvides a reason why the expected value in the element Observation.value[x] is missing.
Control0..1
Binding

HL7 Data absent reason

TypeCodeableConcept
88. EHDSObservation.component.referenceRange
Definition

Reference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.

ShortReference range, multiple reference ranges of different types culd by provided. Provides guide for interpretation of result.
Comments

Reference ranges are usually implied only for a numeric scale type. Use of the same units for reference range and value is implied.

Control0..*
TypeBase
90. EHDSObservation.component.interpretation
Definition

Information about reference intervals and result interpretation.

ShortInformation about reference intervals and result interpretation.
Control0..*
Binding

SNOMED CT, HL7 ObservationInterpretation

TypeCodeableConcept
92. EHDSObservation.derivedFrom[x]
Definition

Reference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

ShortReference to the related resource from which the observation has been made. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSImagingStudy
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
94. EHDSObservation.triggeredBy[x]
Definition

References to the observation(s) that triggered the performance of this observation.

ShortReferences to the observation(s) that triggered the performance of this observation.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
96. EHDSObservation.hasMember[x]
Definition

This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

ShortThis observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
Control0..*
TypeChoice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]