At-Home In-Vitro Test Report
1.0.0 - STU 1 United States of America flag

This page is part of the At-Home In-Vitro Test Report (v1.0.0: STU 1) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Resource Profile: Observation - At-Home In-Vitro Test Result - COVID-19

Official URL: http://hl7.org/fhir/us/home-lab-report/StructureDefinition/Observation-at-home-in-vitro-test-result-covid Version: 1.0.0
Active as of 2023-03-25 Computable Name: ObservationAtHomeInVitroTestResultCovid

This profile constrains the Observation - At-Home In-Vitro Test Result profile to COVID-19 At-Home In-Vitro Tests.

This is an example of a profile that is based on a framework profile and futher constrained to meet the requirements of the COVID-19 use case. It is based on the Observation - At-Home In-Vitro Test Result profile.

It constrains the following elements to COVID-19 specific value sets:

  • Observation.code - consult LIVD to obtain the values to be used for each particular use case
  • Observation.value - consult LIVD to obtain the values to be used for each particular use case

Usage:

Formal Views of Profile Content

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

This structure is derived from ObservationAtHomeInVitroTestResult

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... code 1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... value[x] S1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... id SΣ1..1idLogical id of this artifact
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... Extension-at-home-in-vitro-test-proctored-info 0..1(Complex)Extension - At-Home In-Vitro Test Proctored Information
URL: http://hl7.org/fhir/us/home-lab-report/StructureDefinition/Extension-at-home-in-vitro-test-proctored-info
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required)
Fixed Value: final
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:Laboratory S1..1CodeableConceptClassification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: laboratory
... code SΣ1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
Binding: LOINCCodes (extensible): LOINC codes

... subject SΣ1..1Reference(Patient - At Home In Vitro Test)Who and/or what the observation is about
... effective[x] SΣC1..1dateTimeClinically relevant time/time-period for observation
... issued SΣ0..1instantTest result date released
... performer SΣ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)If the performer is not the patient being tested, specify the person performing the test.
... value[x] SΣC1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... dataAbsentReason SC0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible)
... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
... device S1..1Reference(Device - At-Home In-Vitro Test)The referenced device SHALL be an home Covid test device.
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.statusrequiredFixed Value: final
Observation.categorypreferredObservationCategoryCodes
Observation.category:LaboratorypreferredPattern: laboratory
Observation.codeextensibleLOINCCodes (a valid code from LOINC)
Observation.dataAbsentReasonextensibleDataAbsentReason

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorObservationIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorObservationIf the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
: contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4errorObservationIf a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
: contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5errorObservationIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceObservationA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-6errorObservationdataAbsentReason SHALL only be present if Observation.value[x] is not present
: dataAbsentReason.empty() or value.empty()
obs-7errorObservationIf Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present
: value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()
us-core-1errorObservation.effective[x]Datetime must be at least to day.
: $this is DateTime implies $this.toString().length() >= 10
us-core-2errorObservationIf there is no component or hasMember element then either a value[x] or a data absent reason must be present
: (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
us-core-3errorObservation.value[x]SHALL use UCUM for coded quantity units.
: valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4best practiceObservation.value[x]SHOULD use Snomed CT for coded Results
: valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'
NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... id SΣ1..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... Extension-at-home-in-vitro-test-proctored-info 0..1(Complex)Extension - At-Home In-Vitro Test Proctored Information
URL: http://hl7.org/fhir/us/home-lab-report/StructureDefinition/Extension-at-home-in-vitro-test-proctored-info
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required)
Fixed Value: final
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:Laboratory S1..1CodeableConceptClassification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... id0..1stringUnique id for inter-element referencing
...... extension0..*ExtensionAdditional content defined by implementations
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version0..1stringVersion of the system - if relevant
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: laboratory
...... display0..1stringRepresentation defined by the system
...... userSelected0..1booleanIf this coding was chosen directly by the user
..... text0..1stringPlain text representation of the concept
... code SΣ1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
Binding: LOINCCodes (extensible): LOINC codes

... subject SΣ1..1Reference(Patient - At Home In Vitro Test)Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... effective[x] SΣC1..1dateTimeClinically relevant time/time-period for observation
... issued SΣ0..1instantTest result date released
... performer SΣ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)If the performer is not the patient being tested, specify the person performing the test.
... value[x] SΣC1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... dataAbsentReason SC0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible)
... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite 0..1CodeableConceptObserved body part
Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

... method 0..1CodeableConceptHow it was done
Binding: ObservationMethods (example): Methods for simple observations.

... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣC0..1stringLiteral reference, Relative, internal or absolute URL
.... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).

.... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
.... display Σ0..1stringText alternative for the resource
... device S1..1Reference(Device - At-Home In-Vitro Test)The referenced device SHALL be an home Covid test device.
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣC0..1stringLiteral reference, Relative, internal or absolute URL
.... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).

.... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
.... display Σ0..1stringText alternative for the resource
... referenceRange C0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C0..1SimpleQuantityLow Range, if relevant
.... high C0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember Σ0..*Reference(Observation - At-Home In-Vitro Test Result)Multiplex Assay tests that serve as a single test to diagnose infection caused by multiple viruses (e.g. CDC Flu SC2 Multiplex Assay for SARS-CoV-2, influenza A, and/or influenza B viruses) should be recorded using multiple Observation.hasMember elements.
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINCCodes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
.... dataAbsentReason C0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
Observation.statusrequiredFixed Value: final
Observation.categorypreferredObservationCategoryCodes
Observation.category:LaboratorypreferredPattern: laboratory
Observation.codeextensibleLOINCCodes (a valid code from LOINC)
Observation.dataAbsentReasonextensibleDataAbsentReason
Observation.interpretationextensibleObservationInterpretationCodes
Observation.bodySiteexampleSNOMEDCTBodyStructures
Observation.methodexampleObservationMethods
Observation.specimen.typeextensibleResourceType
Observation.device.typeextensibleResourceType
Observation.referenceRange.typepreferredObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesToexampleObservationReferenceRangeAppliesToCodes
Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReasonextensibleDataAbsentReason
Observation.component.interpretationextensibleObservationInterpretationCodes

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-3errorObservation.referenceRangeMust have at least a low or a high or text
: low.exists() or high.exists() or text.exists()
us-core-1errorObservation.effective[x]Datetime must be at least to day.
: $this is DateTime implies $this.toString().length() >= 10
us-core-3errorObservation.value[x]SHALL use UCUM for coded quantity units.
: valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4best practiceObservation.value[x]SHOULD use Snomed CT for coded Results
: valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

Differential View

This structure is derived from ObservationAtHomeInVitroTestResult

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... code 1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... value[x] S1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search

doco Documentation for this format

Key Elements View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... id SΣ1..1idLogical id of this artifact
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... Extension-at-home-in-vitro-test-proctored-info 0..1(Complex)Extension - At-Home In-Vitro Test Proctored Information
URL: http://hl7.org/fhir/us/home-lab-report/StructureDefinition/Extension-at-home-in-vitro-test-proctored-info
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required)
Fixed Value: final
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:Laboratory S1..1CodeableConceptClassification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: laboratory
... code SΣ1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
Binding: LOINCCodes (extensible): LOINC codes

... subject SΣ1..1Reference(Patient - At Home In Vitro Test)Who and/or what the observation is about
... effective[x] SΣC1..1dateTimeClinically relevant time/time-period for observation
... issued SΣ0..1instantTest result date released
... performer SΣ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)If the performer is not the patient being tested, specify the person performing the test.
... value[x] SΣC1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... dataAbsentReason SC0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible)
... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
... device S1..1Reference(Device - At-Home In-Vitro Test)The referenced device SHALL be an home Covid test device.
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.statusrequiredFixed Value: final
Observation.categorypreferredObservationCategoryCodes
Observation.category:LaboratorypreferredPattern: laboratory
Observation.codeextensibleLOINCCodes (a valid code from LOINC)
Observation.dataAbsentReasonextensibleDataAbsentReason

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorObservationIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorObservationIf the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
: contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4errorObservationIf a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
: contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5errorObservationIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceObservationA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-6errorObservationdataAbsentReason SHALL only be present if Observation.value[x] is not present
: dataAbsentReason.empty() or value.empty()
obs-7errorObservationIf Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present
: value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()
us-core-1errorObservation.effective[x]Datetime must be at least to day.
: $this is DateTime implies $this.toString().length() >= 10
us-core-2errorObservationIf there is no component or hasMember element then either a value[x] or a data absent reason must be present
: (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
us-core-3errorObservation.value[x]SHALL use UCUM for coded quantity units.
: valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4best practiceObservation.value[x]SHOULD use Snomed CT for coded Results
: valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationAtHomeInVitroTestResultMeasurements and simple assertions
... id SΣ1..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... Extension-at-home-in-vitro-test-proctored-info 0..1(Complex)Extension - At-Home In-Vitro Test Proctored Information
URL: http://hl7.org/fhir/us/home-lab-report/StructureDefinition/Extension-at-home-in-vitro-test-proctored-info
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required)
Fixed Value: final
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:Laboratory S1..1CodeableConceptClassification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... id0..1stringUnique id for inter-element referencing
...... extension0..*ExtensionAdditional content defined by implementations
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version0..1stringVersion of the system - if relevant
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: laboratory
...... display0..1stringRepresentation defined by the system
...... userSelected0..1booleanIf this coding was chosen directly by the user
..... text0..1stringPlain text representation of the concept
... code SΣ1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
Binding: LOINCCodes (extensible): LOINC codes

... subject SΣ1..1Reference(Patient - At Home In Vitro Test)Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... effective[x] SΣC1..1dateTimeClinically relevant time/time-period for observation
... issued SΣ0..1instantTest result date released
... performer SΣ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)If the performer is not the patient being tested, specify the person performing the test.
... value[x] SΣC1..1CodeableConceptConsult LIVD: https://www.cdc.gov/csels/dls/livd-codes.html to obtain the values to be used for each particular use case.
... dataAbsentReason SC0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible)
... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite 0..1CodeableConceptObserved body part
Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

... method 0..1CodeableConceptHow it was done
Binding: ObservationMethods (example): Methods for simple observations.

... specimen S1..1Reference(Specimen - At-Home In-Vitro Test - COVID-19)The Specimen SHALL be from at-home Covid sample.
.... id S1..1stringThe referenced specimen SHALL contain a Specimen.identifier and a Specimen.identifier.assigner
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣC0..1stringLiteral reference, Relative, internal or absolute URL
.... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).

.... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
.... display Σ0..1stringText alternative for the resource
... device S1..1Reference(Device - At-Home In-Vitro Test)The referenced device SHALL be an home Covid test device.
.... id S1..1stringThe referenced device SHALL contain a Device.udiCarrier.deviceIdentifier. To find at-home in-vitro test device UDIs, please see GUDID data base: https://accessgudid.nlm.nih.gov/help/search/basic-search
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣC0..1stringLiteral reference, Relative, internal or absolute URL
.... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).

.... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
.... display Σ0..1stringText alternative for the resource
... referenceRange C0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C0..1SimpleQuantityLow Range, if relevant
.... high C0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember Σ0..*Reference(Observation - At-Home In-Vitro Test Result)Multiplex Assay tests that serve as a single test to diagnose infection caused by multiple viruses (e.g. CDC Flu SC2 Multiplex Assay for SARS-CoV-2, influenza A, and/or influenza B viruses) should be recorded using multiple Observation.hasMember elements.
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINCCodes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
.... dataAbsentReason C0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
Observation.statusrequiredFixed Value: final
Observation.categorypreferredObservationCategoryCodes
Observation.category:LaboratorypreferredPattern: laboratory
Observation.codeextensibleLOINCCodes (a valid code from LOINC)
Observation.dataAbsentReasonextensibleDataAbsentReason
Observation.interpretationextensibleObservationInterpretationCodes
Observation.bodySiteexampleSNOMEDCTBodyStructures
Observation.methodexampleObservationMethods
Observation.specimen.typeextensibleResourceType
Observation.device.typeextensibleResourceType
Observation.referenceRange.typepreferredObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesToexampleObservationReferenceRangeAppliesToCodes
Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReasonextensibleDataAbsentReason
Observation.component.interpretationextensibleObservationInterpretationCodes

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-3errorObservation.referenceRangeMust have at least a low or a high or text
: low.exists() or high.exists() or text.exists()
us-core-1errorObservation.effective[x]Datetime must be at least to day.
: $this is DateTime implies $this.toString().length() >= 10
us-core-3errorObservation.value[x]SHALL use UCUM for coded quantity units.
: valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4best practiceObservation.value[x]SHOULD use Snomed CT for coded Results
: valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

 

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