This page is part of the Australian Base IG (v4.1.2-preview: AU Base) based on FHIR R4. For a full list of available versions, see the Directory of published versions

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Resource Profile: AU Base Diagnostic Result

This profile defines an observation structure to represent a diagnostic investigation result issued by a diagnostic service provider in an Australian context. This profile may be used to represent a specialist or other diagnostic (not imaging or pathology) observation including results of audiology studies, sleep studies or speech pathology. The observation may represent the result of a simple investigation or it may group the set of results of a multi-modality procedure or multi-test study / panel.

Usage:

• Refer to this Resource Profile: AU Base Diagnostic Report, AU Base Diagnostic Result, AU Base Diagnostic Imaging Report, AU Base Diagnostic Imaging Result... Show 2 more, AU Base Pathology Report and AU Base Pathology Result

Formal Views of Profile Content

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

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

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code		1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject		1..1	Reference(Patient)	Who and/or what the observation is about
effective[x]		1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
value[x]	C	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual result
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing
hasMember	C	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
component
value[x]	C	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual component result
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1

Constraints

Id	Grade	Path(s)	Details	Requirements
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code	Σ	1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject	Σ	1..1	Reference(Patient)	Who and/or what the observation is about
effective[x]	Σ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
value[x]	ΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
hasMember	ΣC	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.status	required	ObservationStatus
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1
Observation.dataAbsentReason	extensible	DataAbsentReason

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Observation	If 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-4	error	Observation	If 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-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If 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()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	Business Identifier for observation
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code	Σ	1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject	Σ	1..1	Reference(Patient)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	ΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note		0..*	Annotation	Comments about the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen		0..1	Reference(Specimen)	Specimen used for this observation
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
type		0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	ΣC	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
derivedFrom	Σ	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣC	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	ObservationStatus
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1
Observation.dataAbsentReason	extensible	DataAbsentReason
Observation.interpretation	extensible	ObservationInterpretationCodes
Observation.bodySite	example	SNOMEDCTBodyStructures
Observation.method	example	ObservationMethods
Observation.referenceRange.type	preferred	ObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesTo	example	ObservationReferenceRangeAppliesToCodes
Observation.component.code	example	LOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReason	extensible	DataAbsentReason
Observation.component.interpretation	extensible	ObservationInterpretationCodes

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Observation	If 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-4	error	Observation	If 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-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()
obs-3	error	Observation.referenceRange	Must have at least a low or a high or text : low.exists() or high.exists() or text.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If 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()

This structure is derived from Observation

Summary

Mandatory: 3 elements

Structures

This structure refers to these other structures:

• AU Base Diagnostic Result (http://hl7.org.au/fhir/StructureDefinition/au-diagnosticresult)
• AU Base Diagnostic Imaging Result (http://hl7.org.au/fhir/StructureDefinition/au-imagingresult)
• AU Base Pathology Result (http://hl7.org.au/fhir/StructureDefinition/au-pathologyresult)

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/bodySite

Maturity: 1

Differential View

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code		1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject		1..1	Reference(Patient)	Who and/or what the observation is about
effective[x]		1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
value[x]	C	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual result
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing
hasMember	C	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
component
value[x]	C	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual component result
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1

Constraints

Id	Grade	Path(s)	Details	Requirements
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code	Σ	1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject	Σ	1..1	Reference(Patient)	Who and/or what the observation is about
effective[x]	Σ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
value[x]	ΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
hasMember	ΣC	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.status	required	ObservationStatus
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1
Observation.dataAbsentReason	extensible	DataAbsentReason

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Observation	If 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-4	error	Observation	If 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-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If 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()

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	A diagnostic result observation in an Australian healthcare context inv-obs-0: A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
bodySite		0..1	Reference(BodyStructure)	Target anatomic location or structure URL: http://hl7.org/fhir/StructureDefinition/bodySite
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	Business Identifier for observation
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		1..*	CodeableConcept	Diagnostic service section Binding: DiagnosticServiceSectionCodes (preferred)
code	Σ	1..1	CodeableConcept	Diagnostic procedure Binding: https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1 (example)
subject	Σ	1..1	Reference(Patient)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	ΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note		0..*	Annotation	Comments about the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen		0..1	Reference(Specimen)	Specimen used for this observation
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
type		0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	ΣC	0..*	Reference(AU Base Diagnostic Result | AU Base Diagnostic Imaging Result | AU Base Pathology Result)	Individual examinations in a group or study series
derivedFrom	Σ	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣC	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	ObservationStatus
Observation.category	preferred	DiagnosticServiceSectionCodes
Observation.code	example	https://healthterminologies.gov.au/fhir/ValueSet/evaluation-procedure-1
Observation.dataAbsentReason	extensible	DataAbsentReason
Observation.interpretation	extensible	ObservationInterpretationCodes
Observation.bodySite	example	SNOMEDCTBodyStructures
Observation.method	example	ObservationMethods
Observation.referenceRange.type	preferred	ObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesTo	example	ObservationReferenceRangeAppliesToCodes
Observation.component.code	example	LOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReason	extensible	DataAbsentReason
Observation.component.interpretation	extensible	ObservationInterpretationCodes

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Observation	If 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-4	error	Observation	If 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-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
inv-obs-0	error	Observation	A diagnostic result shall at least have value or data absent reason or a child observation with a value or data absent reason : value.exists() or dataAbsentReason.exists() or hasMember.exists() or component.value.exists() or component.dataAbsentReason.exists()
obs-3	error	Observation.referenceRange	Must have at least a low or a high or text : low.exists() or high.exists() or text.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If 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()

This structure is derived from Observation

Summary

Mandatory: 3 elements

Structures

This structure refers to these other structures:

• AU Base Diagnostic Result (http://hl7.org.au/fhir/StructureDefinition/au-diagnosticresult)
• AU Base Diagnostic Imaging Result (http://hl7.org.au/fhir/StructureDefinition/au-imagingresult)
• AU Base Pathology Result (http://hl7.org.au/fhir/StructureDefinition/au-pathologyresult)

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/bodySite

Maturity: 1

Other representations of profile: CSV, Excel, Schematron