Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	This is an abstract profile. Measurements and simple assertions
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation
coding		1..*	Coding	Code defined by a terminology system
system		1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	This is an abstract profile. Measurements and simple assertions
implicitRules	?!ΣN	0..1	uri	A set of rules under which this content was created
modifierExtension	?!N	0..*	Extension	Extensions that cannot be ignored Slice: Unordered, Open by value:url
status	?!ΣN	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
coding	Σ	1..*	Coding	Code defined by a terminology system
system	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
code	ΣN	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣCN	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	CN	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.status	required	ObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:HealthRelatedBehavior	preferred	ObservationCategoryCodes
Observation.code	example	LOINCCodes (a valid code from LOINC)
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** elements	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()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	This is an abstract profile. Measurements and simple assertions
id	Σ	0..1	id	Logical id of this artifact
meta	ΣN	0..1	Meta	Metadata about the resource
implicitRules	?!ΣN	0..1	uri	A set of rules under which this content was created
language	N	0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text	N	0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!N	0..*	Extension	Extensions that cannot be ignored Slice: Unordered, Open by value:url
identifier	ΣN	0..*	Identifier	Business Identifier for observation
basedOn	ΣCN	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	ΣCN	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!ΣN	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
id		0..1	string	Unique id for inter-element referencing
extension	N	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	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
version	ΣN	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
display	ΣN	0..1	string	Representation defined by the system
userSelected	ΣN	0..1	boolean	If this coding was chosen directly by the user
text	ΣN	0..1	string	Plain text representation of the concept
code	ΣN	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	ΣCN	0..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
focus	ΣCTU	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	ΣCN	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	ΣN	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	ΣN	0..1	instant	Date/Time this version was made available
performer	ΣCN	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	ΣCN	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	CN	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	N	0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note	N	0..*	Annotation	Comments about the observation
bodySite	N	0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method	N	0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen	CN	0..1	Reference(Specimen)	Specimen used for this observation
device	CN	0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	CN	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!ΣN	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	CN	0..1	SimpleQuantity	Low Range, if relevant
high	CN	0..1	SimpleQuantity	High Range, if relevant
type	N	0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo	N	0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age	CN	0..1	Range	Applicable age range, if relevant
text	N	0..1	string	Text based reference range in an observation
hasMember	ΣCN	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
derivedFrom	ΣCN	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	ΣN	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!ΣN	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	ΣN	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣN	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	CN	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	N	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	ObservationCategoryCodes
Observation.category:HealthRelatedBehavior	preferred	ObservationCategoryCodes
Observation.code	example	LOINCCodes (a valid code from LOINC)
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
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** elements	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()
qty-3	error	Observation.referenceRange.low, Observation.referenceRange.high	If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists()
ref-1	error	Observation.basedOn, Observation.partOf, Observation.subject, Observation.focus, Observation.encounter, Observation.performer, Observation.specimen, Observation.device, Observation.hasMember, Observation.derivedFrom	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
rng-2	error	Observation.referenceRange.age	If present, low SHALL have a lower value than high : low.empty() or high.empty() or (low <= high)
sqty-1	error	Observation.referenceRange.low, Observation.referenceRange.high	The comparator is not used on a SimpleQuantity : comparator.empty()

Summary

Mandatory: 5 elements
Must-Support: 1 element
Fixed Value: 2 elements

Slices

This structure defines the following Slices:

• The element Observation.category is sliced based on the value of value:coding.code (Open at End)

Maturity: 1

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	This is an abstract profile. Measurements and simple assertions
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation
coding		1..*	Coding	Code defined by a terminology system
system		1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	This is an abstract profile. Measurements and simple assertions
implicitRules	?!ΣN	0..1	uri	A set of rules under which this content was created
modifierExtension	?!N	0..*	Extension	Extensions that cannot be ignored Slice: Unordered, Open by value:url
status	?!ΣN	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
coding	Σ	1..*	Coding	Code defined by a terminology system
system	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
code	ΣN	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣCN	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	CN	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Observation.status	required	ObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:HealthRelatedBehavior	preferred	ObservationCategoryCodes
Observation.code	example	LOINCCodes (a valid code from LOINC)
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** elements	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()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	This is an abstract profile. Measurements and simple assertions
id	Σ	0..1	id	Logical id of this artifact
meta	ΣN	0..1	Meta	Metadata about the resource
implicitRules	?!ΣN	0..1	uri	A set of rules under which this content was created
language	N	0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text	N	0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!N	0..*	Extension	Extensions that cannot be ignored Slice: Unordered, Open by value:url
identifier	ΣN	0..*	Identifier	Business Identifier for observation
basedOn	ΣCN	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	ΣCN	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!ΣN	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category		1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open At End by value:coding.code Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:HealthRelatedBehavior	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
id		0..1	string	Unique id for inter-element referencing
extension	N	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	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://snomed.info/sct
version	ΣN	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 228272008
display	ΣN	0..1	string	Representation defined by the system
userSelected	ΣN	0..1	boolean	If this coding was chosen directly by the user
text	ΣN	0..1	string	Plain text representation of the concept
code	ΣN	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	ΣCN	0..1	Reference(Patient | Group | Device | Location)	Who and/or what the observation is about
focus	ΣCTU	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	ΣCN	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	ΣN	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	ΣN	0..1	instant	Date/Time this version was made available
performer	ΣCN	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	ΣCN	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	CN	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	N	0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note	N	0..*	Annotation	Comments about the observation
bodySite	N	0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method	N	0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen	CN	0..1	Reference(Specimen)	Specimen used for this observation
device	CN	0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	CN	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!ΣN	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	CN	0..1	SimpleQuantity	Low Range, if relevant
high	CN	0..1	SimpleQuantity	High Range, if relevant
type	N	0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo	N	0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age	CN	0..1	Range	Applicable age range, if relevant
text	N	0..1	string	Text based reference range in an observation
hasMember	ΣCN	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
derivedFrom	ΣCN	0..*	Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)	Related measurements the observation is made from
component	ΣN	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension	N	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!ΣN	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	ΣN	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	ΣN	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	CN	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	N	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	ObservationCategoryCodes
Observation.category:HealthRelatedBehavior	preferred	ObservationCategoryCodes
Observation.code	example	LOINCCodes (a valid code from LOINC)
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
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** elements	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()
qty-3	error	Observation.referenceRange.low, Observation.referenceRange.high	If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists()
ref-1	error	Observation.basedOn, Observation.partOf, Observation.subject, Observation.focus, Observation.encounter, Observation.performer, Observation.specimen, Observation.device, Observation.hasMember, Observation.derivedFrom	SHALL have a contained resource if a local reference is provided : reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
rng-2	error	Observation.referenceRange.age	If present, low SHALL have a lower value than high : low.empty() or high.empty() or (low <= high)
sqty-1	error	Observation.referenceRange.low, Observation.referenceRange.high	The comparator is not used on a SimpleQuantity : comparator.empty()

Summary

Mandatory: 5 elements
Must-Support: 1 element
Fixed Value: 2 elements

Slices

This structure defines the following Slices:

• The element Observation.category is sliced based on the value of value:coding.code (Open at End)

Maturity: 1