Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources dom-3: 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 dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated dom-5: If a resource is contained in another resource, it SHALL NOT have a security label dom-6: A resource should have narrative for robust management obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation. ele-1: All FHIR elements must have a @value or children Required Pattern: final
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible) ele-1: All FHIR elements must have a @value or children
text	SΣ	1..1	string	Plain text representation of the concept ele-1: All FHIR elements must have a @value or children
subject	SΣ	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
reference	SΣC	1..1	string	Reference to Patient resource ele-1: All FHIR elements must have a @value or children
display	Σ	0..1	string	External Name of Patient ele-1: All FHIR elements must have a @value or children
Slices for effective[x]	Σ	1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
effective[x]:effectiveInstant	SΣ	1..1	instant	Clinically relevant time/time-period for observation ele-1: All FHIR elements must have a @value or children
performer	SΣ	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation ele-1: All FHIR elements must have a @value or children
reference	SΣC	1..1	string	Reference to Practitioner resource ele-1: All FHIR elements must have a @value or children
display	Σ	0..1	string	External Name of Practitioner ele-1: All FHIR elements must have a @value or children
Slices for value[x]	ΣC	0..1		Actual result Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣC	0..1	string	Actual result ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result ele-1: All FHIR elements must have a @value or children
value	SΣ	1..1	decimal	Numerical value (with implicit precision) ele-1: All FHIR elements must have a @value or children
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible) ele-1: All FHIR elements must have a @value or children
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible) ele-1: All FHIR elements must have a @value or children
coding	Σ	1..*	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children
system	SΣ	1..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children
code	SΣ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children
text	SΣ	0..1	string	Plain text representation of the concept ele-1: All FHIR elements must have a @value or children
note	S	0..*	Annotation	Comments about the observation ele-1: All FHIR elements must have a @value or children
text	SΣ	1..1	markdown	The annotation - text content (as markdown) ele-1: All FHIR elements must have a @value or children
component	SΣ	0..*	BackboneElement	Component results ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
code	SΣ	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible) ele-1: All FHIR elements must have a @value or children
Slices for value[x]	Σ	0..1		Actual component result Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣ	0..1	string	Actual component result ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	Σ	0..1	Quantity	Actual component result ele-1: All FHIR elements must have a @value or children
value	SΣ	1..1	decimal	Numerical value (with implicit precision) ele-1: All FHIR elements must have a @value or children
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible) ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code	URI
Observation.status	required	Pattern: final http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG

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()
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()
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
meta
security		0..*	Coding	Security Labels applied to this resource Binding: Definition of Confidentiality Value Set (required)
implicitRules		0..0
language		0..0
contained		0..0
identifier		0..0
status		1..1	code	registered | preliminary | final | amended + Required Pattern: final
category		0..0
code	S	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible)
text	S	1..1	string	Plain text representation of the concept
subject	S	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
reference	S	1..1	string	Reference to Patient resource
display		0..1	string	External Name of Patient
encounter		0..0
Slices for effective[x]		1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this
effective[x]:effectiveInstant	S	1..1	instant	Clinically relevant time/time-period for observation
performer	S	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
reference	S	1..1	string	Reference to Practitioner resource
display		0..1	string	External Name of Practitioner
Slices for value[x]		0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	S	0..1	string	Actual result
value[x]:valueQuantity		0..1	Quantity	Actual result
value	S	1..1	decimal	Numerical value (with implicit precision)
code		0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible)
coding		1..*	Coding	Code defined by a terminology system
system	S	1..1	uri	Identity of the terminology system
code	S	1..1	code	Symbol in syntax defined by the system
text	S	0..1	string	Plain text representation of the concept
note	S	0..*	Annotation	Comments about the observation
text	S	1..1	markdown	The annotation - text content (as markdown)
bodySite		0..0
component	S	0..*	BackboneElement	Component results
code	S	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible)
Slices for value[x]		0..1		Actual component result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	S	0..1	string	Actual component result
value[x]:valueQuantity		0..1	Quantity	Actual component result
value	S	1..1	decimal	Numerical value (with implicit precision)
code		0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.meta.security	required	ConfidentialityVS https://alexapi.medtechglobal.com.au/fhir/ValueSet/confidentiality from this IG
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
versionId	Σ	0..1	id	Version specific identifier
lastUpdated	Σ	0..1	instant	When the resource version last changed
source	Σ	0..1	uri	Identifies where the resource comes from
profile	Σ	0..*	canonical(StructureDefinition)	Profiles this resource claims to conform to
security	Σ	0..*	Coding	Security Labels applied to this resource Binding: Definition of Confidentiality Value Set (required)
tag	Σ	0..*	Coding	Tags applied to this resource Binding: CommonTags (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
text		0..1	Narrative	Text summary of the resource, for human interpretation
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
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. Required Pattern: final
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	Σ	0..*	Coding	Code defined by a terminology system
text	SΣ	1..1	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Reference to Patient resource
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	Σ	0..1	string	External Name of Patient
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
Slices for effective[x]	Σ	1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this
effective[x]:effectiveInstant	SΣ	1..1	instant	Clinically relevant time/time-period for observation
issued	Σ	0..1	instant	Date/Time this version was made available
performer	SΣ	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Reference to Practitioner resource
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	Σ	0..1	string	External Name of Practitioner
Slices for value[x]	ΣC	0..1		Actual result Slice: Unordered, Closed by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣC	0..1	string	Actual result
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	SΣ	1..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	Σ	1..*	Coding	Code defined by a terminology system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	SΣ	1..1	uri	Identity of the terminology system
version	Σ	0..1	string	Version of the system - if relevant
code	SΣ	1..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
text	SΣ	0..1	string	Plain text representation of the concept
note	S	0..*	Annotation	Comments about the observation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
author[x]	Σ	0..1		Individual responsible for the annotation
authorReference			Reference(Practitioner | Patient | RelatedPerson | Organization)
authorString			string
time	Σ	0..1	dateTime	When the annotation was made
text	SΣ	1..1	markdown	The annotation - text content (as markdown)
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 obs-3: Must have at least a low or a high or text
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	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
derivedFrom	Σ	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	SΣ	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	SΣ	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible)
Slices for value[x]	Σ	0..1		Actual component result Slice: Unordered, Closed by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣ	0..1	string	Actual component result
value[x]:valueQuantity	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	SΣ	1..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
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 / Code	URI
Observation.meta.security	required	ConfidentialityVS https://alexapi.medtechglobal.com.au/fhir/ValueSet/confidentiality from this IG
Observation.meta.tag	example	CommonTags http://hl7.org/fhir/ValueSet/common-tags from the FHIR Standard
Observation.status	required	Pattern: final http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.subject.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types from the FHIR Standard
Observation.performer.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types from the FHIR Standard
Observation.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.method	example	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard
Observation.referenceRange.type	preferred	ObservationReferenceRangeMeaningCodes http://hl7.org/fhir/ValueSet/referencerange-meaning from the FHIR Standard
Observation.referenceRange.appliesTo	example	ObservationReferenceRangeAppliesToCodes http://hl7.org/fhir/ValueSet/referencerange-appliesto from the FHIR Standard
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.component.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.component.interpretation	extensible	ObservationInterpretationCodes http://hl7.org/fhir/ValueSet/observation-interpretation from the FHIR Standard

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()
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()
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Summary

Mandatory: 11 elements(2 nested mandatory elements)
Must-Support: 19 elements
Prohibited: 7 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Observation.effective[x]
• The element 1 is sliced based on the value of Observation.value[x]
• The element 1 is sliced based on the value of Observation.component.value[x]

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources dom-3: 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 dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated dom-5: If a resource is contained in another resource, it SHALL NOT have a security label dom-6: A resource should have narrative for robust management obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation. ele-1: All FHIR elements must have a @value or children Required Pattern: final
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible) ele-1: All FHIR elements must have a @value or children
text	SΣ	1..1	string	Plain text representation of the concept ele-1: All FHIR elements must have a @value or children
subject	SΣ	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
reference	SΣC	1..1	string	Reference to Patient resource ele-1: All FHIR elements must have a @value or children
display	Σ	0..1	string	External Name of Patient ele-1: All FHIR elements must have a @value or children
Slices for effective[x]	Σ	1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
effective[x]:effectiveInstant	SΣ	1..1	instant	Clinically relevant time/time-period for observation ele-1: All FHIR elements must have a @value or children
performer	SΣ	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation ele-1: All FHIR elements must have a @value or children
reference	SΣC	1..1	string	Reference to Practitioner resource ele-1: All FHIR elements must have a @value or children
display	Σ	0..1	string	External Name of Practitioner ele-1: All FHIR elements must have a @value or children
Slices for value[x]	ΣC	0..1		Actual result Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣC	0..1	string	Actual result ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result ele-1: All FHIR elements must have a @value or children
value	SΣ	1..1	decimal	Numerical value (with implicit precision) ele-1: All FHIR elements must have a @value or children
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible) ele-1: All FHIR elements must have a @value or children
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible) ele-1: All FHIR elements must have a @value or children
coding	Σ	1..*	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children
system	SΣ	1..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children
code	SΣ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children
text	SΣ	0..1	string	Plain text representation of the concept ele-1: All FHIR elements must have a @value or children
note	S	0..*	Annotation	Comments about the observation ele-1: All FHIR elements must have a @value or children
text	SΣ	1..1	markdown	The annotation - text content (as markdown) ele-1: All FHIR elements must have a @value or children
component	SΣ	0..*	BackboneElement	Component results ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
code	SΣ	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible) ele-1: All FHIR elements must have a @value or children
Slices for value[x]	Σ	0..1		Actual component result Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣ	0..1	string	Actual component result ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	Σ	0..1	Quantity	Actual component result ele-1: All FHIR elements must have a @value or children
value	SΣ	1..1	decimal	Numerical value (with implicit precision) ele-1: All FHIR elements must have a @value or children
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. ele-1: All FHIR elements must have a @value or children
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible) ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code	URI
Observation.status	required	Pattern: final http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG

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()
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()
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
meta
security		0..*	Coding	Security Labels applied to this resource Binding: Definition of Confidentiality Value Set (required)
implicitRules		0..0
language		0..0
contained		0..0
identifier		0..0
status		1..1	code	registered | preliminary | final | amended + Required Pattern: final
category		0..0
code	S	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible)
text	S	1..1	string	Plain text representation of the concept
subject	S	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
reference	S	1..1	string	Reference to Patient resource
display		0..1	string	External Name of Patient
encounter		0..0
Slices for effective[x]		1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this
effective[x]:effectiveInstant	S	1..1	instant	Clinically relevant time/time-period for observation
performer	S	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
reference	S	1..1	string	Reference to Practitioner resource
display		0..1	string	External Name of Practitioner
Slices for value[x]		0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	S	0..1	string	Actual result
value[x]:valueQuantity		0..1	Quantity	Actual result
value	S	1..1	decimal	Numerical value (with implicit precision)
code		0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible)
coding		1..*	Coding	Code defined by a terminology system
system	S	1..1	uri	Identity of the terminology system
code	S	1..1	code	Symbol in syntax defined by the system
text	S	0..1	string	Plain text representation of the concept
note	S	0..*	Annotation	Comments about the observation
text	S	1..1	markdown	The annotation - text content (as markdown)
bodySite		0..0
component	S	0..*	BackboneElement	Component results
code	S	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible)
Slices for value[x]		0..1		Actual component result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	S	0..1	string	Actual component result
value[x]:valueQuantity		0..1	Quantity	Actual component result
value	S	1..1	decimal	Numerical value (with implicit precision)
code		0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.meta.security	required	ConfidentialityVS https://alexapi.medtechglobal.com.au/fhir/ValueSet/confidentiality from this IG
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present observation-code-text-length: Code.text cannot be more than 30 characters observation-note-text-length: Note - text size validation
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
versionId	Σ	0..1	id	Version specific identifier
lastUpdated	Σ	0..1	instant	When the resource version last changed
source	Σ	0..1	uri	Identifies where the resource comes from
profile	Σ	0..*	canonical(StructureDefinition)	Profiles this resource claims to conform to
security	Σ	0..*	Coding	Security Labels applied to this resource Binding: Definition of Confidentiality Value Set (required)
tag	Σ	0..*	Coding	Tags applied to this resource Binding: CommonTags (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
text		0..1	Narrative	Text summary of the resource, for human interpretation
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
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. Required Pattern: final
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: Screening Term Value Set for observation result (extensible)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	Σ	0..*	Coding	Code defined by a terminology system
text	SΣ	1..1	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Reference to Patient resource
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	Σ	0..1	string	External Name of Patient
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
Slices for effective[x]	Σ	1..1	instant	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this
effective[x]:effectiveInstant	SΣ	1..1	instant	Clinically relevant time/time-period for observation
issued	Σ	0..1	instant	Date/Time this version was made available
performer	SΣ	1..1	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	SΣC	1..1	string	Reference to Practitioner resource
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	Identifier	Logical reference, when literal reference is not known
display	Σ	0..1	string	External Name of Practitioner
Slices for value[x]	ΣC	0..1		Actual result Slice: Unordered, Closed by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣC	0..1	string	Actual result
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	SΣ	1..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
dataAbsentReason	C	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	1..*	CodeableConcept	High, low, normal, etc. Binding: Interpretation Value Set for Observation (extensible)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	Σ	1..*	Coding	Code defined by a terminology system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	SΣ	1..1	uri	Identity of the terminology system
version	Σ	0..1	string	Version of the system - if relevant
code	SΣ	1..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
text	SΣ	0..1	string	Plain text representation of the concept
note	S	0..*	Annotation	Comments about the observation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
author[x]	Σ	0..1		Individual responsible for the annotation
authorReference			Reference(Practitioner | Patient | RelatedPerson | Organization)
authorString			string
time	Σ	0..1	dateTime	When the annotation was made
text	SΣ	1..1	markdown	The annotation - text content (as markdown)
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 obs-3: Must have at least a low or a high or text
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	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
derivedFrom	Σ	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	SΣ	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	SΣ	1..1	CodeableConcept	Type of component observation (code / type) Binding: Prompt Value Set for Measurement (extensible)
Slices for value[x]	Σ	0..1		Actual component result Slice: Unordered, Closed by type:$this
valueQuantity			Quantity
valueString			string
value[x]:valueString	SΣ	0..1	string	Actual component result
value[x]:valueQuantity	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	SΣ	1..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form
code	Σ	0..1	code	Coded form of the unit Binding: Unit Value Set for Observation Component (extensible)
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 / Code	URI
Observation.meta.security	required	ConfidentialityVS https://alexapi.medtechglobal.com.au/fhir/ValueSet/confidentiality from this IG
Observation.meta.tag	example	CommonTags http://hl7.org/fhir/ValueSet/common-tags from the FHIR Standard
Observation.status	required	Pattern: final http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.code	extensible	ScreeningTerm (a valid code from Screening Term CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/screening-term from this IG
Observation.subject.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types from the FHIR Standard
Observation.performer.type	extensible	ResourceType http://hl7.org/fhir/ValueSet/resource-types from the FHIR Standard
Observation.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.interpretation	extensible	ObservationInterpretation (a valid code from Observation Interpretation CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/observation-interpretation from this IG
Observation.method	example	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard
Observation.referenceRange.type	preferred	ObservationReferenceRangeMeaningCodes http://hl7.org/fhir/ValueSet/referencerange-meaning from the FHIR Standard
Observation.referenceRange.appliesTo	example	ObservationReferenceRangeAppliesToCodes http://hl7.org/fhir/ValueSet/referencerange-appliesto from the FHIR Standard
Observation.component.code	extensible	MeasurementPrompt (a valid code from Measurement Prompt CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/measurement-prompt from this IG
Observation.component.value[x]:valueQuantity.comparator	required	QuantityComparator http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1 from the FHIR Standard
Observation.component.value[x]:valueQuantity.code	extensible	ValueQuantityUnit (a valid code from Observation Component Unit CodeSystem) https://alexapi.medtechglobal.com.au/fhir/ValueSet/value-quantity-unit from this IG
Observation.component.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.component.interpretation	extensible	ObservationInterpretationCodes http://hl7.org/fhir/ValueSet/observation-interpretation from the FHIR Standard

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()
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()
observation-code-text-length	error	Observation	Code.text cannot be more than 30 characters : code.text.empty() or code.text.length() <= 30
observation-note-text-length	error	Observation	Note - text size validation : note.text.empty() or note.text.length() <= 4096

Summary

Mandatory: 11 elements(2 nested mandatory elements)
Must-Support: 19 elements
Prohibited: 7 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Observation.effective[x]
• The element 1 is sliced based on the value of Observation.value[x]
• The element 1 is sliced based on the value of Observation.component.value[x]