​See also the FHIR Shorthand.

This is an abstract profile that is copied by other, concrete profiles. Each descendant concrete profile inherits the maps from this more general case. This way, we don’t have to maintain multiple copies of maps for closely related profiles. (Note that this inheritance is managed by the mapping team with a script; we’re not using the FHIR baseDefinition property for this.)

Sometimes, you will notice that an abstract profile includes only "target not supported" maps, so it doesn't look very useful. However, for every profile, we not only map the fields for which we find source data; we also stipulate "target not supported" for any unmapped fields that are tagged "must support" in the US Core. This way, implementers who might be concerned about these fields if they were not mentioned are fully informed about the reason they are not mapped. When there are several concrete profiles that require these clarifying maps, we collect them in an abstract parent, just as we would for cases where we have source element maps.

Use Case Overview

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

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. Measurements and simple assertions dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated dom-5: If a resource is contained in another resource, it SHALL NOT have a security label dom-6: A resource should have narrative for robust management obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present us-core-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
identifier	Σ	0..*	Identifier	Business Identifier for observation ele-1: All FHIR elements must have a @value or children
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . ele-1: All FHIR elements must have a @value or children
system	SΣ	0..1	uri	The namespace for the identifier value ele-1: All FHIR elements must have a @value or children Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	SΣ	0..1	string	The value that is unique ele-1: All FHIR elements must have a @value or children Example General: 123456
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required) ele-1: All FHIR elements must have a @value or children
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by pattern:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
category:Laboratory	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 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: laboratory
code	SΣ	1..1	CodeableConcept	Laboratory Test Name Binding: LOINCCodes (extensible): LOINC codes ele-1: All FHIR elements must have a @value or children
coding	SΣC	0..*	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
system	SΣC	0..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
code	SΣC	0..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SΣC	0..1	string	Representation defined by the system ele-1: All FHIR elements must have a @value or children lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
Slices for effective[x]	SΣC	0..1		Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this ele-1: All FHIR elements must have a @value or children us-core-1: Datetime must be at least to day.
effectiveDateTime			dateTime
effective[x]:effectiveDateTime	SΣC	0..1	dateTime	Clinically relevant time/time-period for observation ele-1: All FHIR elements must have a @value or children us-core-1: Datetime must be at least to day.
issued	SΣ	0..1	instant	Date/Time this version was made available ele-1: All FHIR elements must have a @value or children
value[x]	SΣC	0..1		Result Value ele-1: All FHIR elements must have a @value or children us-core-4: SHOULD use Snomed CT for coded Results us-core-3: SHALL use UCUM for coded quantity units.
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible) ele-1: All FHIR elements must have a @value or children
note	S	0..*	Annotation	Comments about the observation ele-1: All FHIR elements must have a @value or children
specimen	S	0..1	Reference(Lab Observation: Microbiology Specimen)	Specimen used for this observation ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code	URI
Observation.identifier.use	required	IdentifierUse http://hl7.org/fhir/ValueSet/identifier-use|4.0.1 from the FHIR Standard
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:Laboratory	preferred	Pattern: laboratory http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.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()
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true
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()
us-core-1	error	Observation.effective[x], Observation.effective[x]:effectiveDateTime	Datetime must be at least to day. : $this is DateTime implies $this.toString().length() >= 10
us-core-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())
us-core-3	error	Observation.value[x]	SHALL use UCUM for coded quantity units. : valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4	best practice	Observation.value[x]	SHOULD use Snomed CT for coded Results : valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

This structure is derived from USCoreLaboratoryResultObservationProfile

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. Measurements and simple assertions
identifier
system	S	0..1	uri	The namespace for the identifier value Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	S	0..1	string	The value that is unique
Slices for category				Content/Rules for all slices
category:Laboratory		1..1	CodeableConcept	Classification of type of observation
code
coding	SC	0..*	Coding	Code defined by a terminology system lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
system	SC	0..1	uri	Identity of the terminology system lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
code	SC	0..1	code	Symbol in syntax defined by the system lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SC	0..1	string	Representation defined by the system lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
subject		1..1	Reference(Patient)	Who and/or what the observation is about
Slices for effective[x]		0..1	dateTime, Period, Timing, instant	Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this
effective[x]:effectiveDateTime	S	0..1	dateTime S	Clinically relevant time/time-period for observation
issued	S	0..1	instant	Date/Time this version was made available
note	S	0..*	Annotation	Comments about the observation
specimen	S	0..1	Reference(Lab Observation: Microbiology Specimen)	Specimen used for this observation
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. 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 us-core-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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
type	Σ	0..1	CodeableConcept	Description of identifier Binding: Identifier Type Codes (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
system	SΣ	0..1	uri	The namespace for the identifier value Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	SΣ	0..1	string	The value that is unique Example General: 123456
period	Σ	0..1	Period	Time period when id is/was valid for use
assigner	Σ	0..1	Reference(Organization)	Organization that issued id (may be just text)
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required)
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by pattern:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:Laboratory	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	string	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	string	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: laboratory
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
code	SΣ	1..1	CodeableConcept	Laboratory Test Name Binding: LOINCCodes (extensible): LOINC codes
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	SΣC	0..*	Coding	Code defined by a terminology system lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
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	SΣC	0..1	uri	Identity of the terminology system lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
version	Σ	0..1	string	Version of the system - if relevant
code	SΣC	0..1	code	Symbol in syntax defined by the system lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SΣC	0..1	string	Representation defined by the system lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
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(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
Slices for effective[x]	SΣC	0..1		Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this us-core-1: Datetime must be at least to day.
effectiveDateTime			dateTime S
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
effective[x]:effectiveDateTime	SΣC	0..1	dateTime S	Clinically relevant time/time-period for observation us-core-1: Datetime must be at least to day.
issued	SΣ	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		Result Value us-core-4: SHOULD use Snomed CT for coded Results us-core-3: SHALL use UCUM for coded quantity units.
valueQuantity			Quantity S
valueCodeableConcept			CodeableConcept S
valueString			string S
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible)
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note	S	0..*	Annotation	Comments about the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen	S	0..1	Reference(Lab Observation: Microbiology 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 / Code	URI
Observation.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages from the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
Observation.identifier.use	required	IdentifierUse http://hl7.org/fhir/ValueSet/identifier-use|4.0.1 from the FHIR Standard
Observation.identifier.type	extensible	Identifier Type Codes http://hl7.org/fhir/ValueSet/identifier-type from the FHIR Standard
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:Laboratory	preferred	Pattern: laboratory http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes 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	example	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
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

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()
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true
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()
us-core-1	error	Observation.effective[x], Observation.effective[x]:effectiveDateTime	Datetime must be at least to day. : $this is DateTime implies $this.toString().length() >= 10
us-core-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())
us-core-3	error	Observation.value[x]	SHALL use UCUM for coded quantity units. : valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4	best practice	Observation.value[x]	SHOULD use Snomed CT for coded Results : valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. Measurements and simple assertions dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated dom-5: If a resource is contained in another resource, it SHALL NOT have a security label dom-6: A resource should have narrative for robust management obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present us-core-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
identifier	Σ	0..*	Identifier	Business Identifier for observation ele-1: All FHIR elements must have a @value or children
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . ele-1: All FHIR elements must have a @value or children
system	SΣ	0..1	uri	The namespace for the identifier value ele-1: All FHIR elements must have a @value or children Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	SΣ	0..1	string	The value that is unique ele-1: All FHIR elements must have a @value or children Example General: 123456
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required) ele-1: All FHIR elements must have a @value or children
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by pattern:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. ele-1: All FHIR elements must have a @value or children
category:Laboratory	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 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: laboratory
code	SΣ	1..1	CodeableConcept	Laboratory Test Name Binding: LOINCCodes (extensible): LOINC codes ele-1: All FHIR elements must have a @value or children
coding	SΣC	0..*	Coding	Code defined by a terminology system ele-1: All FHIR elements must have a @value or children lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
system	SΣC	0..1	uri	Identity of the terminology system ele-1: All FHIR elements must have a @value or children lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
code	SΣC	0..1	code	Symbol in syntax defined by the system ele-1: All FHIR elements must have a @value or children lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SΣC	0..1	string	Representation defined by the system ele-1: All FHIR elements must have a @value or children lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
subject	SΣ	1..1	Reference(Patient)	Who and/or what the observation is about ele-1: All FHIR elements must have a @value or children
Slices for effective[x]	SΣC	0..1		Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this ele-1: All FHIR elements must have a @value or children us-core-1: Datetime must be at least to day.
effectiveDateTime			dateTime
effective[x]:effectiveDateTime	SΣC	0..1	dateTime	Clinically relevant time/time-period for observation ele-1: All FHIR elements must have a @value or children us-core-1: Datetime must be at least to day.
issued	SΣ	0..1	instant	Date/Time this version was made available ele-1: All FHIR elements must have a @value or children
value[x]	SΣC	0..1		Result Value ele-1: All FHIR elements must have a @value or children us-core-4: SHOULD use Snomed CT for coded Results us-core-3: SHALL use UCUM for coded quantity units.
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible) ele-1: All FHIR elements must have a @value or children
note	S	0..*	Annotation	Comments about the observation ele-1: All FHIR elements must have a @value or children
specimen	S	0..1	Reference(Lab Observation: Microbiology Specimen)	Specimen used for this observation ele-1: All FHIR elements must have a @value or children
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code	URI
Observation.identifier.use	required	IdentifierUse http://hl7.org/fhir/ValueSet/identifier-use|4.0.1 from the FHIR Standard
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:Laboratory	preferred	Pattern: laboratory http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes from the FHIR Standard
Observation.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()
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true
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()
us-core-1	error	Observation.effective[x], Observation.effective[x]:effectiveDateTime	Datetime must be at least to day. : $this is DateTime implies $this.toString().length() >= 10
us-core-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())
us-core-3	error	Observation.value[x]	SHALL use UCUM for coded quantity units. : valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4	best practice	Observation.value[x]	SHOULD use Snomed CT for coded Results : valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

Differential View

This structure is derived from USCoreLaboratoryResultObservationProfile

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. Measurements and simple assertions
identifier
system	S	0..1	uri	The namespace for the identifier value Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	S	0..1	string	The value that is unique
Slices for category				Content/Rules for all slices
category:Laboratory		1..1	CodeableConcept	Classification of type of observation
code
coding	SC	0..*	Coding	Code defined by a terminology system lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
system	SC	0..1	uri	Identity of the terminology system lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
code	SC	0..1	code	Symbol in syntax defined by the system lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SC	0..1	string	Representation defined by the system lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
subject		1..1	Reference(Patient)	Who and/or what the observation is about
Slices for effective[x]		0..1	dateTime, Period, Timing, instant	Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this
effective[x]:effectiveDateTime	S	0..1	dateTime S	Clinically relevant time/time-period for observation
issued	S	0..1	instant	Date/Time this version was made available
note	S	0..*	Annotation	Comments about the observation
specimen	S	0..1	Reference(Lab Observation: Microbiology Specimen)	Specimen used for this observation
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	USCoreLaboratoryResultObservationProfile(5.0.1)	This is an abstract profile. 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 us-core-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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
type	Σ	0..1	CodeableConcept	Description of identifier Binding: Identifier Type Codes (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
system	SΣ	0..1	uri	The namespace for the identifier value Required Pattern: http://va.gov/identifiers/$Sta3n/63.05
value	SΣ	0..1	string	The value that is unique Example General: 123456
period	Σ	0..1	Period	Time period when id is/was valid for use
assigner	Σ	0..1	Reference(Organization)	Organization that issued id (may be just text)
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)	Part of referenced event
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required)
Slices for category	S	1..*	CodeableConcept	Classification of type of observation Slice: Unordered, Open by pattern:$this Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:Laboratory	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	string	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	string	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: laboratory
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
code	SΣ	1..1	CodeableConcept	Laboratory Test Name Binding: LOINCCodes (extensible): LOINC codes
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	SΣC	0..*	Coding	Code defined by a terminology system lomo-37-1480: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-)
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	SΣC	0..1	uri	Identity of the terminology system lomo-37-1480-1: If Not NULL then fixed value http://loinc.org
version	Σ	0..1	string	Version of the system - if relevant
code	SΣC	0..1	code	Symbol in syntax defined by the system lomo-37-1480-2: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01)
display	SΣC	0..1	string	Representation defined by the system lomo-37-1480-3: If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1)
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(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
Slices for effective[x]	SΣC	0..1		Clinically relevant time/time-period for observation Slice: Unordered, Open by type:$this us-core-1: Datetime must be at least to day.
effectiveDateTime			dateTime S
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
effective[x]:effectiveDateTime	SΣC	0..1	dateTime S	Clinically relevant time/time-period for observation us-core-1: Datetime must be at least to day.
issued	SΣ	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		Result Value us-core-4: SHOULD use Snomed CT for coded Results us-core-3: SHALL use UCUM for coded quantity units.
valueQuantity			Quantity S
valueCodeableConcept			CodeableConcept S
valueString			string S
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible)
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note	S	0..*	Annotation	Comments about the observation
bodySite		0..1	CodeableConcept	Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method		0..1	CodeableConcept	How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen	S	0..1	Reference(Lab Observation: Microbiology 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 / Code	URI
Observation.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages from the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
Observation.identifier.use	required	IdentifierUse http://hl7.org/fhir/ValueSet/identifier-use|4.0.1 from the FHIR Standard
Observation.identifier.type	extensible	Identifier Type Codes http://hl7.org/fhir/ValueSet/identifier-type from the FHIR Standard
Observation.status	required	ObservationStatus http://hl7.org/fhir/ValueSet/observation-status from the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.category:Laboratory	preferred	Pattern: laboratory http://hl7.org/fhir/ValueSet/observation-category from the FHIR Standard
Observation.code	extensible	LOINCCodes (a valid code from LOINC) http://hl7.org/fhir/ValueSet/observation-codes 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	example	SNOMEDCTBodyStructures http://hl7.org/fhir/ValueSet/body-site from the FHIR Standard
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

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()
lomo-37-1480	warning	Observation.code.coding	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-) : true
lomo-37-1480-1	warning	Observation.code.coding.system	If Not NULL then fixed value http://loinc.org : true
lomo-37-1480-2	warning	Observation.code.coding.code	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-.01) : true
lomo-37-1480-3	warning	Observation.code.coding.display	If Not NULL then source value from (63.05-.35 > 63.5-13 > 60-100 > 60.01-95.3 > 95.3-1) : true
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()
us-core-1	error	Observation.effective[x], Observation.effective[x]:effectiveDateTime	Datetime must be at least to day. : $this is DateTime implies $this.toString().length() >= 10
us-core-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())
us-core-3	error	Observation.value[x]	SHALL use UCUM for coded quantity units. : valueQuantity.system.empty() or valueQuantity.system = 'http://unitsofmeasure.org'
us-core-4	best practice	Observation.value[x]	SHOULD use Snomed CT for coded Results : valueCodeableConcept.coding.system.empty() or valueCodeableConcept.coding.system = 'http://snomed.info/sct'

This structure is derived from USCoreLaboratoryResultObservationProfile

Summary

Must-Support: 10 elements

Structures

This structure refers to these other structures:

• Patient (http://va.gov/fhir/StructureDefinition/Patient)
• Lab Observation: Microbiology Specimen (http://va.gov/fhir/StructureDefinition/LabObservationMicrobiologySpecimen)

Slices

This structure defines the following Slices:

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