EHDS Logical Information Models
0.3.0 - qa-preview

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.3.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Xt-EHR/xt-ehr-common/ and changes regularly. See the Directory of published versions

Logical Model: Observation model

Official URL: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSObservation Version: 0.3.0
Draft as of 2026-02-09 Computable Name: EHDSObservation

Model for information about an oservation and its results.

Scope and Usage

Observation is one of the most complex and versatile structures in the logical model. It is designed to cover many different types of observations across a wide range of use cases, from sharing simple findings (e.g. skin color or pulse rate) to representing complex laboratory and medical test results.

The Observation model includes several elements that support complex scenarios in which an observation either:

  • consists of several parts that are observed at the same time, under the same conditions, and need to be reported together, or
  • is composed of multiple observations that may be performed at different times and under different conditions, but need to be logically grouped to express the intended clinical meaning or workflow.

To support this flexibility, the Observation model allows the use of additional components within a single observation and/or relationships of various types between different observations.

One of the crucial challenges is selecting the appropriate modeling approach to accurately express the intended semantic meaning for each complex observation scenario.

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header 1..1 Base Basic metadata for this information
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... identifier 0..* Identifier Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
.... author[x] 0..* Author(s) responsible for the provided information.
..... authorEHDSHealthProfessional EHDSHealthProfessional
..... authorEHDSOrganisation EHDSOrganisation
..... authorEHDSDevice EHDSDevice
.... date 0..1 dateTime Date and optionally time of authoring/issuing
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... source 0..1 CodeableConcept 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.
.... language 0..1 CodeableConcept Language in which the resource is written. Language is expressed by the IETF language tag.
Binding Description: (preferred): BCP 47
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.header.​language Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown

This structure is derived from EHDSDataSet

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header 1..1 Base Basic metadata for this information
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... identifier 0..* Identifier Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
.... author[x] 0..* Author(s) responsible for the provided information.
..... authorEHDSHealthProfessional EHDSHealthProfessional
..... authorEHDSOrganisation EHDSOrganisation
..... authorEHDSDevice EHDSDevice
.... date 0..1 dateTime Date and optionally time of authoring/issuing
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... source 0..1 CodeableConcept 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.
.... language 0..1 CodeableConcept Language in which the resource is written. Language is expressed by the IETF language tag.
Binding Description: (preferred): BCP 47
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.header.​language Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown

This structure is derived from EHDSDataSet

Summary

Mandatory: 0 element(7 nested mandatory elements)

Key Elements View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header 1..1 Base Basic metadata for this information
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... identifier 0..* Identifier Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
.... author[x] 0..* Author(s) responsible for the provided information.
..... authorEHDSHealthProfessional EHDSHealthProfessional
..... authorEHDSOrganisation EHDSOrganisation
..... authorEHDSDevice EHDSDevice
.... date 0..1 dateTime Date and optionally time of authoring/issuing
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... source 0..1 CodeableConcept 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.
.... language 0..1 CodeableConcept Language in which the resource is written. Language is expressed by the IETF language tag.
Binding Description: (preferred): BCP 47
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.header.​language Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown

Differential View

This structure is derived from EHDSDataSet

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. EHDSObservation 0..* EHDSDataSet Observation model

Elements defined in Ancestors:header
... header 1..1 Base Basic metadata for this information
.... subject 1..1 EHDSPatient Patient who is receiving health care. This patient might be different from the direct subject of the observation.
.... identifier 0..* Identifier Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).
.... author[x] 0..* Author(s) responsible for the provided information.
..... authorEHDSHealthProfessional EHDSHealthProfessional
..... authorEHDSOrganisation EHDSOrganisation
..... authorEHDSDevice EHDSDevice
.... date 0..1 dateTime Date and optionally time of authoring/issuing
.... status 1..1 CodeableConcept Status of the resource or document
Binding Description: (preferred): HL7 Observation status
.... source 0..1 CodeableConcept 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.
.... language 0..1 CodeableConcept Language in which the resource is written. Language is expressed by the IETF language tag.
Binding Description: (preferred): BCP 47
.... directSubject[x] 0..1 The direct subject of the observation if different from the patient (subject of care), e.g. an observation of an implanted device. Additional types of subject may be allowed in implementations.
..... directSubjectEHDSPatient EHDSPatient
..... directSubjectEHDSLocation EHDSLocation
..... directSubjectEHDSDevice EHDSDevice
..... directSubjectEHDSHealthProfessional EHDSHealthProfessional
..... directSubjectEHDSOrganisation EHDSOrganisation
..... directSubjectEHDSProcedure EHDSProcedure
... observationDate[x] 1..1 Clinically relevant time or time period for the observation
.... observationDateDateTime dateTime
.... observationDatePeriod Period
... type 1..1 CodeableConcept Observation type. Code and name representing the type of the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
... method 0..1 CodeableConcept Observation method
Binding Description: (preferred): SNOMED CT
... specimen 0..1 EHDSSpecimen Specimen used for this observation.
... order 0..1 EHDSServiceRequest Identifies order and order placer this observation belongs to
... performer[x] 0..* 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.
.... performerEHDSOrganisation EHDSOrganisation
.... performerEHDSHealthProfessional EHDSHealthProfessional
.... performerEHDSPatient EHDSPatient
.... performerEHDSRelatedPerson EHDSRelatedPerson
... bodySite 0..1 EHDSBodyStructure Anatomic location and laterality where the observation was performed.
... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
.... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
..... valueString string
..... valueQuantity Quantity
..... valueRange Range
..... valueRatio Ratio
..... valueCodeableConcept CodeableConcept
.... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
..... value 1..1 decimal The numerical value of the measurement uncertainty.
..... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
.... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element Observation.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
.... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
.... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
.... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
.... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
.... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
.... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
.... text 0..1 string Text based reference range in an observation.
... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... note 0..1 string Comments and narrative representation of the observation result and findings.
... component 0..* Base Component in case the observation consists of multiple sub-observations (e.g. blood pressure).
.... code 1..1 CodeableConcept Code representing the observation using the agreed code systems.
Binding Description: (preferred): LOINC, NPU, SNOMED CT
.... originalName 0..1 string Original (user-friendly) name of the observation as used in the local laboratory or clinical system.
.... result 1..1 Base Result of the observation including text, numeric, coded, and other types of results of the measurement and measurement uncertainty. Content of the observation result will vary according to the type of the observation.
..... value[x] 0..1 Observation result value according to the type of observation. Model covers only most frequently used data types but other data types can be used as well. Text result value should be used only if coded result value is not expected otherwise use valueCodeableConcept.text. For Quantity, Range and Ratio, result units of the measurement should be provided.
Binding Description: (preferred): UCUM for units, SNOMED CT for coded results
...... valueString string
...... valueQuantity Quantity
...... valueRange Range
...... valueRatio Ratio
...... valueCodeableConcept CodeableConcept
..... uncertainty 0..1 Base Measurement uncertainty type and interval if needed.
...... value 1..1 decimal The numerical value of the measurement uncertainty.
...... type 0..1 Coding Probability Distribution Type for uncertainty
Binding Description: (preferred): HL7 ProbabilityDistributionType
..... dataAbsentReason 0..1 CodeableConcept Provides a reason why the expected value in the element component.value[x] is missing.
Binding Description: (preferred): HL7 Data absent reason
.... referenceRange 0..* Base Reference range, multiple reference ranges of different types could by provided. Provides guide for interpretation of the result.
..... low 0..1 Quantity Low limit of the reference range.
Binding Description: (preferred): UCUM for units
..... high 0..1 Quantity High limit of the reference range.
Binding Description: (preferred): UCUM for units
..... normalValue 0..1 CodeableConcept Normal value, if relevant for the reference range.
Binding Description: (preferred): SNOMED CT
..... type 0..1 CodeableConcept Type of reference range.
Binding Description: (preferred): HL7 Observation Reference Range Meaning Codes
..... appliesTo 0..* CodeableConcept Codes to indicate the target population this reference range applies to.
Binding Description: (preferred): SNOMED CT, HL7 v3-Race
..... age 0..1 Range Age range to which this reference range applies if applicable.
Binding Description: (preferred): UCUM for units
..... text 0..1 string Text based reference range in an observation.
.... interpretation 0..* CodeableConcept Information about reference intervals and result interpretation.
Binding Description: (preferred): SNOMED CT, HL7 ObservationInterpretation
... derivedFrom[x] 0..* 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.
.... derivedFromEHDSObservation EHDSObservation
.... derivedFromEHDSLaboratoryObservation EHDSLaboratoryObservation
.... derivedFromEHDSImagingStudy EHDSImagingStudy
... hasMember[x] 0..* 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.
.... hasMemberEHDSLaboratoryObservation EHDSLaboratoryObservation
.... hasMemberEHDSObservation EHDSObservation

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
EHDSObservation.header.​status Base preferred Not State Unknown
EHDSObservation.header.​language Base preferred Not State Unknown
EHDSObservation.type Base preferred Not State Unknown
EHDSObservation.method Base preferred Not State Unknown
EHDSObservation.result.​value[x] Base preferred Not State Unknown
EHDSObservation.result.​uncertainty.type Base preferred Not State Unknown
EHDSObservation.result.​dataAbsentReason Base preferred Not State Unknown
EHDSObservation.referenceRange.​low Base preferred Not State Unknown
EHDSObservation.referenceRange.​high Base preferred Not State Unknown
EHDSObservation.referenceRange.​normalValue Base preferred Not State Unknown
EHDSObservation.referenceRange.​type Base preferred Not State Unknown
EHDSObservation.referenceRange.​appliesTo Base preferred Not State Unknown
EHDSObservation.referenceRange.​age Base preferred Not State Unknown
EHDSObservation.interpretation Base preferred Not State Unknown
EHDSObservation.component.​code Base preferred Not State Unknown
EHDSObservation.component.​result.value[x] Base preferred Not State Unknown
EHDSObservation.component.​result.uncertainty.type Base preferred Not State Unknown
EHDSObservation.component.​result.dataAbsentReason Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.low Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.high Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.normalValue Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.type Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.appliesTo Base preferred Not State Unknown
EHDSObservation.component.​referenceRange.age Base preferred Not State Unknown
EHDSObservation.component.​interpretation Base preferred Not State Unknown

This structure is derived from EHDSDataSet

Summary

Mandatory: 0 element(7 nested mandatory elements)

 

Other representations of profile: CSV, Excel

Notes:

When to use components

Semantic meaning of components

A component represents a structured sub-result that:

  • is measured together with other components,
  • shares the same observation context, and
  • is not clinically meaningful on its own.

Components answer the question:

“What are the parts of this one observation?”

All components share the same:

  • subject,
  • time of observation,
  • performer,
  • method.

Components:

  • cannot stand alone without the parent observation, and
  • are usually presented together.
Guidance for use

Use components if all of the following are true:

  • the values are observed at the same moment,
  • they are produced by the same observation act,
  • they are meaningless or potentially misleading in isolation, and
  • they are not expected to be referenced independently.

When to use relationships between observations

Semantic meaning of relationships

The Observation model allows observations to be related using the following relationship types:

  • hasMember – to group multiple observations that belong to a common set or panel,
  • derivedFrom – to indicate that one observation is calculated, inferred, or otherwise derived from one or more other observations,

Each related observation:

  • has independent clinical meaning,
  • may be observed or reported separately, and
  • may be reused or referenced independently.
Guidance for use

Use relationships between observations when the related observations:

  • have independent meaning,
  • may have different observation times,
  • may have different performers or methods, and
  • can be referenced, queried, or interpreted independently.

Summary principles

  • Use components when the parts are inseparable aspects of a single observation.
  • Use relationships between observations when each observation has independent clinical meaning.