Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	SDOH screening questionnaire observations
status	S	1..1	code	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	S	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	S	1..1	Reference(US Core Patient Profile)	Who and/or what the observation is about
effective[x]	S	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
performer	S	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	S	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual result Slice: Unordered, Open by type:$this
value[x]:valueQuantity		0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept		0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
dataAbsentReason	S	0..1	CodeableConcept	Why the result is missing
bodySite		0..0
specimen		0..0
hasMember		0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	S	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	S	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that the observation is made from
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	LOINCCodes (a valid code from LOINC)

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	SDOH screening questionnaire observations
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!SΣ	1..1	code	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	SΣ	1..1	Reference(US Core Patient Profile)	Who and/or what the observation is about
effective[x]	SΣ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
performer	SΣ	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept	ΣC	0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
hasMember	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	SΣ	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	SΣ	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that the observation is made from
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:SocialHistory	preferred	Pattern: social-history
Observation.category:Survey	preferred	Pattern: survey
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	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** 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()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	SDOH screening questionnaire observations
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	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	SΣ	1..1	Reference(US Core Patient Profile)	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]	SΣ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	SΣ	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept	ΣC	0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
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
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
type		0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	SΣ	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	SΣ	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that 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 / Code
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:SocialHistory	preferred	Pattern: social-history
Observation.category:Survey	preferred	Pattern: survey
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	LOINCCodes (a valid code from LOINC)
Observation.dataAbsentReason	extensible	DataAbsentReason
Observation.interpretation	extensible	ObservationInterpretationCodes
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** 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()

Summary

Mandatory: 4 elements
Must-Support: 12 elements
Prohibited: 2 elements

Structures

This structure refers to these other structures:

• US Core Patient Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient)
• US Core Practitioner Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner)
• US Core PractitionerRole Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitionerrole)
• US Core Organization Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization)
• US Core CareTeam Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-careteam)
• SDOHCC Observation Screening Response (http://hl7.org/fhir/us/sdoh-clinicalcare/StructureDefinition/SDOHCC-ObservationScreeningResponse)
• SDC Questionnaire Response (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaireresponse)

Slices

This structure defines the following Slices:

• The element Observation.category is sliced based on the value of value:$this
• The element Observation.value[x] is sliced based on the value of type:$this
• The element Observation.derivedFrom is sliced based on the value of profile:resolve()

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	SDOH screening questionnaire observations
status	S	1..1	code	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	S	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	S	1..1	Reference(US Core Patient Profile)	Who and/or what the observation is about
effective[x]	S	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
performer	S	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	S	0..1	Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period	Actual result Slice: Unordered, Open by type:$this
value[x]:valueQuantity		0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept		0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
dataAbsentReason	S	0..1	CodeableConcept	Why the result is missing
bodySite		0..0
specimen		0..0
hasMember		0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	S	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	S	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that the observation is made from
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	LOINCCodes (a valid code from LOINC)

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	SDOH screening questionnaire observations
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!SΣ	1..1	code	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	SΣ	1..1	Reference(US Core Patient Profile)	Who and/or what the observation is about
effective[x]	SΣ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
performer	SΣ	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept	ΣC	0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
hasMember	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	SΣ	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	SΣ	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that the observation is made from
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:SocialHistory	preferred	Pattern: social-history
Observation.category:Survey	preferred	Pattern: survey
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	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** 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()

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	SDOH screening questionnaire observations
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	final | corrected | entered-in-error | unknown Binding: SDOHCC ValueSet Observation Status (required)
Slices for category		2..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:SocialHistory	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: social-history
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
category:Survey	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: survey
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
category:SDOH	S	0..*	CodeableConcept	e.g., food-insecurity | transportation-insecurity Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (required)
subject	SΣ	1..1	Reference(US Core Patient Profile)	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]	SΣ	1..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
performer	SΣ	0..*	Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)	Who is responsible for the observation
Slices for value[x]	SΣC	0..1		Actual result Slice: Unordered, Open by type:$this
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
value[x]:valueQuantity	ΣC	0..1	Quantity	Actual result Binding: UnitsOfMeasureCaseSensitive (required): This is the entire UCUM code set.
value[x]:valueCodeableConcept	ΣC	0..1	CodeableConcept	Actual result Binding: LOINCCodes (preferred): This value set includes all LOINC codes
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
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
type		0..1	CodeableConcept	Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	Σ	0..*	Reference(Observation | QuestionnaireResponse | MolecularSequence)	Related resource that belongs to the Observation group
Slices for derivedFrom	SΣ	0..*	Reference(DocumentReference | QuestionnaireResponse | Observation)	Related measurements the observation is made from Slice: Unordered, Open by profile:resolve()
derivedFrom:SupportedDerivedFrom	SΣ	0..*	Reference(SDOHCC Observation Screening Response | SDC Questionnaire Response)	Related questionnaire responses or observations that 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 / Code
Observation.language	preferred	CommonLanguages Additional Bindings Purpose AllLanguages Max Binding
Observation.status	required	SDOHCCValueSetObservationStatus
Observation.category	preferred	ObservationCategoryCodes
Observation.category:SocialHistory	preferred	Pattern: social-history
Observation.category:Survey	preferred	Pattern: survey
Observation.category:SDOH	required	SDOHCCValueSetSDOHCategory
Observation.code	required	LOINCCodes (a valid code from LOINC)
Observation.value[x]:valueQuantity	required	UnitsOfMeasureCaseSensitive (a valid code from UCUM)
Observation.value[x]:valueCodeableConcept	preferred	LOINCCodes (a valid code from LOINC)
Observation.dataAbsentReason	extensible	DataAbsentReason
Observation.interpretation	extensible	ObservationInterpretationCodes
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** 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()

Summary

Mandatory: 4 elements
Must-Support: 12 elements
Prohibited: 2 elements

Structures

This structure refers to these other structures:

• US Core Patient Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient)
• US Core Practitioner Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner)
• US Core PractitionerRole Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitionerrole)
• US Core Organization Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization)
• US Core CareTeam Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-careteam)
• SDOHCC Observation Screening Response (http://hl7.org/fhir/us/sdoh-clinicalcare/StructureDefinition/SDOHCC-ObservationScreeningResponse)
• SDC Questionnaire Response (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaireresponse)

Slices

This structure defines the following Slices:

• The element Observation.category is sliced based on the value of value:$this
• The element Observation.value[x] is sliced based on the value of type:$this
• The element Observation.derivedFrom is sliced based on the value of profile:resolve()