Vital Signs with Qualifying Elements, published by HL7 International - Clinical Information Modeling Initiative. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cimi-vital-signs/ and changes regularly. See the Directory of published versions

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON
• TTL

Resource Profile: Oxygen Saturation in Arterial Blood by Pulse Oximetry

A measurement of the percentage to which oxygen is bound to hemoglobin in arterial blood via pulse oximetry.

Usage:

• Refer to this Resource Profile: Vital Signs Panel
• Examples for this Resource Profile: Observation/oxygenSaturationPulseOx-example

Formal Views of Profile Content

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

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

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	Measurements and simple assertions
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
subject	S	1..1	Reference(Patient)	Who and/or what the observation is about
value[x]	S	0..1	Quantity	Actual result
value	S	1..1	decimal	Numerical value (with implicit precision)
unit	S	1..1	string	Unit representation
system	S	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	S	1..1	code	Coded form of the unit Fixed Value: %
dataAbsentReason	S	0..1	CodeableConcept	Why the result is missing
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.interpretation	extensible	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS from this IG

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
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
code	Σ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about
value[x]	SΣC	0..1	Quantity	Actual result
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 form of the unit Fixed Value: %
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
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.code	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.value[x].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	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS from this IG

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
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	Business Identifier for observation
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		0..*	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
code	Σ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	SΣC	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	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 form of the unit Fixed Value: %
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
note		0..*	Annotation	Comments about the observation
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
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	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	Σ	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding http://hl7.org/fhir/ValueSet/languages from the FHIR Standard
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.code	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.value[x].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	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS 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	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes 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

This structure is derived from Observation

Summary

Mandatory: 1 element(4 nested mandatory elements)
Must-Support: 12 elements
Fixed: 2 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt
• http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt
• http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt

Differential View

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	Measurements and simple assertions
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
subject	S	1..1	Reference(Patient)	Who and/or what the observation is about
value[x]	S	0..1	Quantity	Actual result
value	S	1..1	decimal	Numerical value (with implicit precision)
unit	S	1..1	string	Unit representation
system	S	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	S	1..1	code	Coded form of the unit Fixed Value: %
dataAbsentReason	S	0..1	CodeableConcept	Why the result is missing
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
Observation.interpretation	extensible	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS from this IG

Key Elements View

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
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
code	Σ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about
value[x]	SΣC	0..1	Quantity	Actual result
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 form of the unit Fixed Value: %
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
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.code	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.value[x].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	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS from this IG

Snapshot View

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
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
sensorDescription	S	0..*	CodeableConcept	Sensor Description URL: http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt Binding: Sensor Description value set (extensible)
MeasurementSetting	S	0..1	CodeableConcept	Measurement setting URL: http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt Binding: Measurement Setting value set (extensible)
exerciseAssociation	S	0..1	CodeableConcept	Exercise Association URL: http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt Binding: Exertion Phase value set (extensible)
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	Business Identifier for observation
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		0..*	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
code	Σ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	SΣC	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	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 form of the unit Fixed Value: %
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	High, low, normal, etc. Binding: Low Only Numeric Result Interpretation value set (extensible)
note		0..*	Annotation	Comments about the observation
bodySite	S	0..1	CodeableConcept	Observed body part Binding: Oxygen Saturation Body Location value set (extensible)
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	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x]	Σ	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding http://hl7.org/fhir/ValueSet/languages from the FHIR Standard
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.code	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.value[x].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	LowOnlyNumericResultInterpretationNom http://hl7.org/fhir/us/vitals/ValueSet/LowOnlyNumericResultIntVS from this IG
Observation.bodySite	extensible	OxygenSaturationBodyLocationvalueset http://hl7.org/fhir/us/vitals/ValueSet/sPO2BodyLocationVS 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	example	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes 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

This structure is derived from Observation

Summary

Mandatory: 1 element(4 nested mandatory elements)
Must-Support: 12 elements
Fixed: 2 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/us/vitals/StructureDefinition/SensorDescriptionExt
• http://hl7.org/fhir/us/vitals/StructureDefinition/MeasurementSettingExt
• http://hl7.org/fhir/us/vitals/StructureDefinition/ExerciseAssociationExt

Other representations of profile: CSV, Excel, Schematron