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This structure is derived from observation-bmi

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile
code		1..1	CodeableConceptTW	身體質量指數(BMI)
coding		1..1	Coding	Code defined by a terminology system
subject		1..1	Reference(TW Core Patient)	Who and/or what the observation is about
encounter		0..1	Reference(TW Core Encounter)	Healthcare event during which this observation is made
performer		0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (extensible)
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible)
specimen		0..1	Reference(TW Core Specimen)	Specimen used for this observation
hasMember		0..*	Reference(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components
derivedFrom		0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile 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 vs-2: If there is no component or hasMember element then either a value[x] or a data absent reason must be present.
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created ele-1: All FHIR elements must have a @value or children
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	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required) ele-1: All FHIR elements must have a @value or children
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
category:VSCat	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
coding	SΣ	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 Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code	SΣ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children Fixed Value: vital-signs
code	S	1..1	CodeableConceptTW	身體質量指數(BMI) Binding: VitalSigns (extensible): This identifies the vital sign result type. ele-1: All FHIR elements must have a @value or children
Slices for coding	Σ	1..1	Coding	Code defined by a terminology system Slice: Unordered, Open by value:code, value:system ele-1: All FHIR elements must have a @value or children
coding:BMICode	Σ	1..1	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children
system	Σ	1..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children Fixed Value: http://loinc.org
code	Σ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children Fixed Value: 39156-5
subject	SΣ	1..1	Reference(TW Core Patient)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
encounter	Σ	0..1	Reference(TW Core Encounter)	Healthcare event during which this observation is made ele-1: All FHIR elements must have a @value or children
effective[x]	SΣC	1..1		Often just a dateTime for Vital Signs ele-1: All FHIR elements must have a @value or children vs-1: if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day
effectiveDateTime			dateTime
effectivePeriod			Period
performer	Σ	0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation ele-1: All FHIR elements must have a @value or children
Slices for value[x]	SΣC	0..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	SΣC	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. 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
unit	SΣ	1..1	string	Unit representation ele-1: All FHIR elements must have a @value or children
system	SΣC	1..1	uri	System that defines coded unit form ele-1: All FHIR elements must have a @value or children Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded responses from the common UCUM units for vital signs value set. ele-1: All FHIR elements must have a @value or children Fixed Value: kg/m2
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing. ele-1: All FHIR elements must have a @value or children
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (extensible) ele-1: All FHIR elements must have a @value or children
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible) ele-1: All FHIR elements must have a @value or children
specimen		0..1	Reference(TW Core Specimen)	Specimen used for this observation ele-1: All FHIR elements must have a @value or children
hasMember	Σ	0..*	Reference(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components ele-1: All FHIR elements must have a @value or children
derivedFrom	Σ	0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from ele-1: All FHIR elements must have a @value or children
component	SΣC	0..*	BackboneElement	Used when reporting systolic and diastolic blood pressure. ele-1: All FHIR elements must have a @value or children vs-3: If there is no a value a data absent reason must be present
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: VitalSigns (extensible): This identifies the vital sign result type. ele-1: All FHIR elements must have a @value or children
value[x]	SΣC	0..1		Vital Sign Value recorded with UCUM Binding: VitalSignsUnits (extensible): Common UCUM units for recording Vital Signs. ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing. ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:VSCat	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult 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.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard
Observation.component.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult from the FHIR Standard
Observation.component.value[x]	extensible	VitalSignsUnits http://hl7.org/fhir/ValueSet/ucum-vitals-common|4.0.1 from the FHIR Standard
Observation.component.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason 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-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()
vs-1	error	Observation.effective[x]	if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day : $this is dateTime implies $this.toString().length() >= 10
vs-2	error	Observation	If there is no component or hasMember element then either a value[x] or a data absent reason must be present. : (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
vs-3	error	Observation.component	If there is no a value a data absent reason must be present : value.exists() or dataAbsentReason.exists()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile 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 vs-2: If there is no component or hasMember element then either a value[x] or a data absent reason must be present.
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
extension		0..*	Extension	Additional content defined by implementations
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	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required)
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:VSCat	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		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	SΣ	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 Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version	Σ	0..1	string	Version of the system - if relevant
code	SΣ	1..1	code	Symbol in syntax defined by the system Fixed Value: vital-signs
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	Σ	0..1	string	Plain text representation of the concept
code	S	1..1	CodeableConceptTW	身體質量指數(BMI) Binding: VitalSigns (extensible): This identifies the vital sign result type.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
Slices for coding	Σ	1..1	Coding	Code defined by a terminology system Slice: Unordered, Open by value:code, value:system
coding:BMICode	Σ	1..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	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 39156-5
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	Σ	0..1	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(TW Core 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(TW Core Encounter)	Healthcare event during which this observation is made
effective[x]	SΣC	1..1		Often just a dateTime for Vital Signs vs-1: if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. Slice: Unordered, Closed by type:$this
value[x]:valueQuantity	SΣC	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
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	SΣ	1..1	string	Unit representation
system	SΣC	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded responses from the common UCUM units for vital signs value set. Fixed Value: kg/m2
dataAbsentReason	SC	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 (extensible)
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible)
specimen		0..1	Reference(TW Core 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(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components
derivedFrom	Σ	0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from
component	SΣC	0..*	BackboneElement	Used when reporting systolic and diastolic blood pressure. vs-3: If there is no a value a data absent reason must be present
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: VitalSigns (extensible): This identifies the vital sign result type.
value[x]	SΣC	0..1		Vital Sign Value recorded with UCUM Binding: VitalSignsUnits (extensible): Common UCUM units for recording Vital Signs.
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	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	URI
Observation.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages from the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:VSCat	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult 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.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.interpretation	extensible	ObservationInterpretationCodes http://hl7.org/fhir/ValueSet/observation-interpretation from the FHIR Standard
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	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	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult from the FHIR Standard
Observation.component.value[x]	extensible	VitalSignsUnits http://hl7.org/fhir/ValueSet/ucum-vitals-common|4.0.1 from the FHIR Standard
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()
vs-1	error	Observation.effective[x]	if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day : $this is dateTime implies $this.toString().length() >= 10
vs-2	error	Observation	If there is no component or hasMember element then either a value[x] or a data absent reason must be present. : (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
vs-3	error	Observation.component	If there is no a value a data absent reason must be present : value.exists() or dataAbsentReason.exists()

Differential View

This structure is derived from observation-bmi

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile
code		1..1	CodeableConceptTW	身體質量指數(BMI)
coding		1..1	Coding	Code defined by a terminology system
subject		1..1	Reference(TW Core Patient)	Who and/or what the observation is about
encounter		0..1	Reference(TW Core Encounter)	Healthcare event during which this observation is made
performer		0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (extensible)
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible)
specimen		0..1	Reference(TW Core Specimen)	Specimen used for this observation
hasMember		0..*	Reference(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components
derivedFrom		0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile 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 vs-2: If there is no component or hasMember element then either a value[x] or a data absent reason must be present.
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created ele-1: All FHIR elements must have a @value or children
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	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required) ele-1: All FHIR elements must have a @value or children
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
category:VSCat	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
coding	SΣ	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 Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code	SΣ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children Fixed Value: vital-signs
code	S	1..1	CodeableConceptTW	身體質量指數(BMI) Binding: VitalSigns (extensible): This identifies the vital sign result type. ele-1: All FHIR elements must have a @value or children
Slices for coding	Σ	1..1	Coding	Code defined by a terminology system Slice: Unordered, Open by value:code, value:system ele-1: All FHIR elements must have a @value or children
coding:BMICode	Σ	1..1	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children
system	Σ	1..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children Fixed Value: http://loinc.org
code	Σ	1..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children Fixed Value: 39156-5
subject	SΣ	1..1	Reference(TW Core Patient)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
encounter	Σ	0..1	Reference(TW Core Encounter)	Healthcare event during which this observation is made ele-1: All FHIR elements must have a @value or children
effective[x]	SΣC	1..1		Often just a dateTime for Vital Signs ele-1: All FHIR elements must have a @value or children vs-1: if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day
effectiveDateTime			dateTime
effectivePeriod			Period
performer	Σ	0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation ele-1: All FHIR elements must have a @value or children
Slices for value[x]	SΣC	0..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. Slice: Unordered, Closed by type:$this ele-1: All FHIR elements must have a @value or children
value[x]:valueQuantity	SΣC	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. 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
unit	SΣ	1..1	string	Unit representation ele-1: All FHIR elements must have a @value or children
system	SΣC	1..1	uri	System that defines coded unit form ele-1: All FHIR elements must have a @value or children Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded responses from the common UCUM units for vital signs value set. ele-1: All FHIR elements must have a @value or children Fixed Value: kg/m2
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing. ele-1: All FHIR elements must have a @value or children
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (extensible) ele-1: All FHIR elements must have a @value or children
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible) ele-1: All FHIR elements must have a @value or children
specimen		0..1	Reference(TW Core Specimen)	Specimen used for this observation ele-1: All FHIR elements must have a @value or children
hasMember	Σ	0..*	Reference(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components ele-1: All FHIR elements must have a @value or children
derivedFrom	Σ	0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from ele-1: All FHIR elements must have a @value or children
component	SΣC	0..*	BackboneElement	Used when reporting systolic and diastolic blood pressure. ele-1: All FHIR elements must have a @value or children vs-3: If there is no a value a data absent reason must be present
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: VitalSigns (extensible): This identifies the vital sign result type. ele-1: All FHIR elements must have a @value or children
value[x]	SΣC	0..1		Vital Sign Value recorded with UCUM Binding: VitalSignsUnits (extensible): Common UCUM units for recording Vital Signs. ele-1: All FHIR elements must have a @value or children
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing. ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:VSCat	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult 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.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	ObservationMethods http://hl7.org/fhir/ValueSet/observation-methods from the FHIR Standard
Observation.component.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult from the FHIR Standard
Observation.component.value[x]	extensible	VitalSignsUnits http://hl7.org/fhir/ValueSet/ucum-vitals-common|4.0.1 from the FHIR Standard
Observation.component.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason 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-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()
vs-1	error	Observation.effective[x]	if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day : $this is dateTime implies $this.toString().length() >= 10
vs-2	error	Observation	If there is no component or hasMember element then either a value[x] or a data absent reason must be present. : (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
vs-3	error	Observation.component	If there is no a value a data absent reason must be present : value.exists() or dataAbsentReason.exists()

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	observation-bmi	FHIR Body Mass Index (BMI) Profile 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 vs-2: If there is no component or hasMember element then either a value[x] or a data absent reason must be present.
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
extension		0..*	Extension	Additional content defined by implementations
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	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required)
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:VSCat	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		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	SΣ	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 Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version	Σ	0..1	string	Version of the system - if relevant
code	SΣ	1..1	code	Symbol in syntax defined by the system Fixed Value: vital-signs
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	Σ	0..1	string	Plain text representation of the concept
code	S	1..1	CodeableConceptTW	身體質量指數(BMI) Binding: VitalSigns (extensible): This identifies the vital sign result type.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
Slices for coding	Σ	1..1	Coding	Code defined by a terminology system Slice: Unordered, Open by value:code, value:system
coding:BMICode	Σ	1..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	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 39156-5
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	Σ	0..1	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(TW Core 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(TW Core Encounter)	Healthcare event during which this observation is made
effective[x]	SΣC	1..1		Often just a dateTime for Vital Signs vs-1: if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(TW Core Practitioner | TW Core PractitionerRole | TW Core Organization | TW Core CareTeam | TW Core Patient | TW Core RelatedPerson)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. Slice: Unordered, Closed by type:$this
value[x]:valueQuantity	SΣC	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
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	SΣ	1..1	string	Unit representation
system	SΣC	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded responses from the common UCUM units for vital signs value set. Fixed Value: kg/m2
dataAbsentReason	SC	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 (extensible)
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (extensible)
specimen		0..1	Reference(TW Core 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(TW Core QuestionnaireResponse | MolecularSequence | TW Core Observation Vital Signs)	Used when reporting vital signs panel components
derivedFrom	Σ	0..*	Reference(TW Core DocumentReference | TW Core ImagingStudy | TW Core Media | TW Core QuestionnaireResponse | TW Core Observation Vital Signs | MolecularSequence)	Related measurements the observation is made from
component	SΣC	0..*	BackboneElement	Used when reporting systolic and diastolic blood pressure. vs-3: If there is no a value a data absent reason must be present
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: VitalSigns (extensible): This identifies the vital sign result type.
value[x]	SΣC	0..1		Vital Sign Value recorded with UCUM Binding: VitalSignsUnits (extensible): Common UCUM units for recording Vital Signs.
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	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	URI
Observation.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages from the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status|4.0.1 from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:VSCat	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult 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.dataAbsentReason	extensible	DataAbsentReason http://hl7.org/fhir/ValueSet/data-absent-reason from the FHIR Standard
Observation.interpretation	extensible	ObservationInterpretationCodes http://hl7.org/fhir/ValueSet/observation-interpretation from the FHIR Standard
Observation.bodySite	extensible	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
Observation.method	extensible	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	VitalSigns http://hl7.org/fhir/ValueSet/observation-vitalsignresult from the FHIR Standard
Observation.component.value[x]	extensible	VitalSignsUnits http://hl7.org/fhir/ValueSet/ucum-vitals-common|4.0.1 from the FHIR Standard
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()
vs-1	error	Observation.effective[x]	if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day : $this is dateTime implies $this.toString().length() >= 10
vs-2	error	Observation	If there is no component or hasMember element then either a value[x] or a data absent reason must be present. : (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
vs-3	error	Observation.component	If there is no a value a data absent reason must be present : value.exists() or dataAbsentReason.exists()

This structure is derived from observation-bmi

Summary

Mandatory: 1 element

Structures

This structure refers to these other structures:

• TW CodeableConcept (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/CodeableConcept-tw)
• TW Core Patient (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Patient-twcore)
• TW Core Encounter (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Encounter-twcore)
• TW Core Practitioner (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Practitioner-twcore)
• TW Core PractitionerRole (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/PractitionerRole-twcore)
• TW Core Organization (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Organization-twcore)
• TW Core CareTeam (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/CareTeam-twcore)
• TW Core RelatedPerson (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/RelatedPerson-twcore)
• TW Core Specimen (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Specimen-twcore)
• TW Core QuestionnaireResponse (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/QuestionnaireResponse-twcore)
• TW Core Observation Vital Signs (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Observation-vitalSigns-twcore)
• TW Core DocumentReference (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/DocumentReference-twcore)
• TW Core ImagingStudy (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/ImagingStudy-twcore)
• TW Core Media (https://twcore.mohw.gov.tw/ig/twcore/StructureDefinition/Media-twcore)

以下概述了此Profile所需的RESTful FHIR互動功能。有關TW Core IG支援的RESTful互動功能的完整清單，請參閱TW Core Server能力聲明。

建議應該支援以下查詢參數：

1. 建議應該（SHOULD） 支援透過查詢參數 _id 查詢所有Observation：
   (如何透過token查詢)
   GET [base]/Observation?_id=[id]
GET [base]/Observation/[id]

   例子：
   (1) GET [base]/Observation?_id=obs-bmi-example
   (2) GET [base]/Observation/obs-bmi-example

2. 建議應該（SHOULD） 支援透過查詢參數 category 查詢所有Observation：
   (如何透過token查詢)
   GET [base]/Observation?category={system|}[code]

   例子：
   (1) GET [base]/Observation?category=http://terminology.hl7.org/CodeSystem/observation-category|vital-signs

3. 建議應該（SHOULD） 支援透過查詢參數 code 查詢所有Observation：
   (如何透過token查詢)
   GET [base]/Observation?code={system|}[code]

   例子：
   (1) GET [base]/Observation?code=http://loinc.org|39156-5

4. 建議應該（SHOULD） 支援透過查詢參數 performer 查詢所有Observation：
   (如何透過reference查詢)
   GET [base]/Observation?performer={Type/}[id]

   例子：
   (1) GET [base]/Observation?performer=Practitioner/pra-dr-example

5. 建議應該（SHOULD） 支援透過查詢參數 status 查詢所有Observation：
   (如何透過token查詢)
   GET [base]/Observation?status=[code]

   例子：
   (1) GET [base]/Observation?status=registered

6. 建議應該（SHOULD） 支援透過查詢參數 subject 查詢所有Observation：
   (如何透過reference查詢)
   GET [base]/Observation?subject={Type/}[id]

   例子：
   (1) GET [base]/Observation?subject=Patient/pat-example

7. 建議應該（SHOULD） 支援透過查詢參數 date 查詢所有Observation：
   (如何透過date查詢)
   GET [base]/Observation?date={gt|lt|ge|le}[date]

   例子：
   (1) GET [base]/Observation?date=gt2022-07-31