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/tree/stakeholder-consultation-D7-1 and changes regularly. See the Directory of published versions

## Logical Model: Laboratory observation model

Official URL: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLaboratoryObservation | Version: 0.2.1
Draft as of 2026-02-09 | Computable Name: EHDSLaboratoryObservation

Model for observation performed by laboratory

Usages:

- Use this Logical Model: Laboratory observation model, Laboratory report model and Observation model

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.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
originalName |  | 0..1 | string | Original (conventional) name of the observation as used in the local laboratory or clinical system.
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 laboratory 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.
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).
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
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 |
basedOn[x] |  | 0..* | EHDSServiceRequest | A plan, proposal or order that is fulfilled in whole or in part by this observation.
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings

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

This structure is derived from EHDSObservation

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
result |  | 1..1 | Base | Result of the laboratory 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.
component |  |  |  |
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
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
EHDSLaboratoryObservation.​type | Base | preferred |  | Not State | Unknown
EHDSLaboratoryObservation.​component.type | Base | preferred |  | Not State | Unknown

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
originalName |  | 0..1 | string | Original (conventional) name of the observation as used in the local laboratory or clinical system.
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 laboratory 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.
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).
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
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 |
basedOn[x] |  | 0..* | EHDSServiceRequest | A plan, proposal or order that is fulfilled in whole or in part by this observation.
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings

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

This structure is derived from EHDSObservation

Summary

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
originalName |  | 0..1 | string | Original (conventional) name of the observation as used in the local laboratory or clinical system.
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 laboratory 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.
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).
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
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 |
basedOn[x] |  | 0..* | EHDSServiceRequest | A plan, proposal or order that is fulfilled in whole or in part by this observation.
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings

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

Differential View

This structure is derived from EHDSObservation

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
result |  | 1..1 | Base | Result of the laboratory 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.
component |  |  |  |
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
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
EHDSLaboratoryObservation.​type | Base | preferred |  | Not State | Unknown
EHDSLaboratoryObservation.​component.type | Base | preferred |  | Not State | Unknown

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSLaboratoryObservation |  | 0..* | EHDSObservation | Laboratory observation model Elements defined in Ancestors:header, observationDate[x], type, originalName, method, specimen, order, performer[x], bodySite, result, referenceRange, interpretation, note, component, derivedFrom[x], hasMember[x], basedOn[x]
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
originalName |  | 0..1 | string | Original (conventional) name of the observation as used in the local laboratory or clinical system.
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 laboratory 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.
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).
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
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 |
basedOn[x] |  | 0..* | EHDSServiceRequest | A plan, proposal or order that is fulfilled in whole or in part by this observation.
triggeredBy[x] |  | 0..* |  | References to the observation(s) that triggered the performance of this observation.
triggeredByEHDSLaboratoryObservation |  |  | EHDSLaboratoryObservation |
triggeredByEHDSObservation |  |  | EHDSObservation |
testKit |  | 0..1 | EHDSDevice | Laboratory test kit used during measurement.
calibrator |  | 0..1 | Identifier | Information about which end-user calibrator the laboratory used for the measurement to indicate the metrological traceability chain.
accreditationStatus |  | 0..1 | boolean | Accreditation status of the laboratory for the observation.
previousResults |  | 0..* | EHDSLaboratoryObservation | Previous results of the same observation
pointOfCareTest |  | 0..1 | boolean | Examination performed near or at the site of a patient.
Documentation for this format

#### Terminology Bindings

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

This structure is derived from EHDSObservation

Summary

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,
- triggeredBy – to indicate that one observation was initiated or caused by another observation or event.

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.