PROTECT-CHILD Pediatric Transplant Data Implementation Guide, published by Protect Child. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/protect-child/ and changes regularly. See the Directory of published versions

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

Resource Profile: Clinical Variable

Clinical variables recorded for a transplant patient at a visit, aligned with the DMv1.2 clinical_variable table. Captures weight, height, diuresis, and concomitant disease(s). Vital signs (BP, HR, O2, temperature) moved to the VitalSign profile in DMv1.2.

Usages:

• Examples for this Profile: Observation/ClinicalVariableExample1

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

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

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

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation	C	0..*	Observation	Measurements and simple assertions Constraints: obs-6, obs-7
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	1..1	Identifier	Business Identifier for observation
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
system	Σ	1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value	Σ	1..1	string	The value that is unique Example General: 123456
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation. Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Fixed Value: As shown (Exam)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..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..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: exam
display		0..0	string	Representation defined by the system
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
encounter	SΣ	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
note	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
Slices for component	Σ	1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:All Slices				Content/Rules for all slices
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.
component:weight	SΣ	0..1	BackboneElement	weight (kg)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: kg
component:height	SΣ	0..1	BackboneElement	height (cm)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: cm
component:diuresis_value	SΣ	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: mL/d
component:concomitant_disease	SΣ	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Observation.identifier.​use	Base	required	IdentifierUse	📍4.0.1	FHIR Std.
Observation.status	Base	required	ObservationStatus	📍4.0.1	FHIR Std.
Observation.category	Base	preferred	Observation Category Codes	📍4.0.1	FHIR Std.
Observation.code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:height.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:height.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG

Constraints

Id	Grade	Path(s)	Description	Expression
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()

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation		0..*	Observation	Measurements and simple assertions
identifier	S	1..1	Identifier	Business Identifier for observation
system		1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value		1..1	string	The value that is unique
status	S	1..1	code	registered | preliminary | final | amended + Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Fixed Value: As shown (Exam)
coding		1..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: exam
code	S	1..1	CodeableConcept	Type of observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
subject	S	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
encounter	S	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
value[x]		0..0		Actual result
note	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
Slices for component		1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:weight	S	0..1	BackboneElement	weight (kg)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: kg
component:height	S	0..1	BackboneElement	height (cm)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: cm
component:diuresis_value	S	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: mL/d
component:concomitant_disease	S	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
value[x]		0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
Documentation for this format

Terminology Bindings (Differential)

Path	Status	Usage	ValueSet	Version	Source
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation	C	0..*	Observation	Measurements and simple assertions Constraints: obs-6, obs-7
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 This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	1..1	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	Σ	1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value	Σ	1..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): Codes providing the status of an observation. Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Fixed Value: As shown (Exam)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..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..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: exam
display		0..0	string	Representation defined by the system
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	SΣ	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
dataAbsentReason	C	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	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
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		0..1	Reference(Specimen)	Specimen used for this observation
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation Constraints: obs-3
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(4.0.1)	Low Range, if relevant
high	C	0..1	SimpleQuantity(4.0.1)	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
Slices for component	Σ	1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:All Slices				Content/Rules for all slices
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
component:weight	SΣ	0..1	BackboneElement	weight (kg)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: kg
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
component:height	SΣ	0..1	BackboneElement	height (cm)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: cm
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
component:diuresis_value	SΣ	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: mL/d
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
component:concomitant_disease	SΣ	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
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	Status	Usage	ValueSet	Version	Source
Observation.language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
Observation.identifier.​use	Base	required	IdentifierUse	📍4.0.1	FHIR Std.
Observation.identifier.​type	Base	extensible	IdentifierType	📍4.0.1	FHIR Std.
Observation.status	Base	required	ObservationStatus	📍4.0.1	FHIR Std.
Observation.category	Base	preferred	Observation Category Codes	📍4.0.1	FHIR Std.
Observation.code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.bodySite	Base	example	SNOMED CT Body Structures	📍4.0.1	FHIR Std.
Observation.method	Base	example	Observation Methods	📍4.0.1	FHIR Std.
Observation.referenceRange.​type	Base	preferred	Observation Reference Range Meaning Codes	📍4.0.1	FHIR Std.
Observation.referenceRange.​appliesTo	Base	example	Observation Reference Range Applies To Codes	📍4.0.1	FHIR Std.
Observation.component.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:weight.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:weight.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:height.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:height.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:height.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:height.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG
Observation.component:concomitant_disease.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Observation	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Observation	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
obs-3	error	Observation.referenceRange	Must have at least a low or a high or text	low.exists() or high.exists() or text.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present	dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present	value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()

This structure is derived from Observation

Summary

Mandatory: 8 elements
Must-Support: 11 elements
Fixed: 8 elements
Prohibited: 1 element

Structures

This structure refers to these other structures:

• Transplant Recipient (https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/StructureDefinition/patient-transplant)
• Visit (https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/StructureDefinition/visit)

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Observation.component

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation	C	0..*	Observation	Measurements and simple assertions Constraints: obs-6, obs-7
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	1..1	Identifier	Business Identifier for observation
use	?!Σ	0..1	code	usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
system	Σ	1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value	Σ	1..1	string	The value that is unique Example General: 123456
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation. Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Fixed Value: As shown (Exam)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..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..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: exam
display		0..0	string	Representation defined by the system
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
encounter	SΣ	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
note	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
Slices for component	Σ	1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:All Slices				Content/Rules for all slices
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.
component:weight	SΣ	0..1	BackboneElement	weight (kg)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: kg
component:height	SΣ	0..1	BackboneElement	height (cm)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: cm
component:diuresis_value	SΣ	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: mL/d
component:concomitant_disease	SΣ	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Observation.identifier.​use	Base	required	IdentifierUse	📍4.0.1	FHIR Std.
Observation.status	Base	required	ObservationStatus	📍4.0.1	FHIR Std.
Observation.category	Base	preferred	Observation Category Codes	📍4.0.1	FHIR Std.
Observation.code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:height.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:height.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG

Constraints

Id	Grade	Path(s)	Description	Expression
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()

Differential View

This structure is derived from Observation

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation		0..*	Observation	Measurements and simple assertions
identifier	S	1..1	Identifier	Business Identifier for observation
system		1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value		1..1	string	The value that is unique
status	S	1..1	code	registered | preliminary | final | amended + Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Fixed Value: As shown (Exam)
coding		1..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: exam
code	S	1..1	CodeableConcept	Type of observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
subject	S	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
encounter	S	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
value[x]		0..0		Actual result
note	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
Slices for component		1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:weight	S	0..1	BackboneElement	weight (kg)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: kg
component:height	S	0..1	BackboneElement	height (cm)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: cm
component:diuresis_value	S	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
value[x]		0..1	Quantity	Actual component result
system		0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code		0..1	code	Coded form of the unit Required Pattern: mL/d
component:concomitant_disease	S	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
code		1..1	CodeableConcept	Type of component observation (code / type) Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
value[x]		0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
Documentation for this format

Terminology Bindings (Differential)

Path	Status	Usage	ValueSet	Version	Source
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Observation	C	0..*	Observation	Measurements and simple assertions Constraints: obs-6, obs-7
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 This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	1..1	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	Σ	1..1	uri	The namespace for the identifier value Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/NamingSystem/clinical-variable-id
value	Σ	1..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): Codes providing the status of an observation. Fixed Value: final
category	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Fixed Value: As shown (Exam)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..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..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: exam
display		0..0	string	Representation defined by the system
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 55752-0
display		1..1	string	Representation defined by the system Fixed Value: Clinical information
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	SΣ	1..1	Reference(Transplant Recipient)	patient_id — transplant recipient
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
encounter	SΣ	1..1	Reference(Visit)	visit_id — visit at which these variables were recorded
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
dataAbsentReason	C	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	S	0..*	Annotation	description / other_symptoms / other_concomitant / organ_dysfunction — free-text fields
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		0..1	Reference(Specimen)	Specimen used for this observation
device		0..1	Reference(Device | DeviceMetric)	(Measurement) Device
referenceRange	C	0..*	BackboneElement	Provides guide for interpretation Constraints: obs-3
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(4.0.1)	Low Range, if relevant
high	C	0..1	SimpleQuantity(4.0.1)	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
Slices for component	Σ	1..*	BackboneElement	Component results Slice: Unordered, Open by pattern:code
component:All Slices				Content/Rules for all slices
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
component:weight	SΣ	0..1	BackboneElement	weight (kg)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 29463-7
display		1..1	string	Representation defined by the system Fixed Value: Body weight
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: kg
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
component:height	SΣ	0..1	BackboneElement	height (cm)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 8302-2
display		1..1	string	Representation defined by the system Fixed Value: Body height
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: cm
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
component:diuresis_value	SΣ	0..1	BackboneElement	diuresis_value — 24 h diuresis (ml/day)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 9192-6
display		1..1	string	Representation defined by the system Fixed Value: Urine output 24 hour
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	Quantity	Actual component result
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	Σ	0..1	decimal	Numerical value (with implicit precision)
comparator	?!Σ	0..1	code	< | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented.
unit	Σ	0..1	string	Unit representation
system	ΣC	0..1	uri	System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code	Σ	0..1	code	Coded form of the unit Required Pattern: mL/d
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
component:concomitant_disease	SΣ	1..*	BackboneElement	concomitant_disease — coded concomitant disease (repeat per disease)
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. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/clinical-variable-component
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: concomitant-disease
display		1..1	string	Representation defined by the system Fixed Value: Concomitant disease
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
value[x]	Σ	0..1	CodeableConcept	Actual component result Binding: Concomitant Disease Category ValueSet (required)
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	Status	Usage	ValueSet	Version	Source
Observation.language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
Observation.identifier.​use	Base	required	IdentifierUse	📍4.0.1	FHIR Std.
Observation.identifier.​type	Base	extensible	IdentifierType	📍4.0.1	FHIR Std.
Observation.status	Base	required	ObservationStatus	📍4.0.1	FHIR Std.
Observation.category	Base	preferred	Observation Category Codes	📍4.0.1	FHIR Std.
Observation.code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.bodySite	Base	example	SNOMED CT Body Structures	📍4.0.1	FHIR Std.
Observation.method	Base	example	Observation Methods	📍4.0.1	FHIR Std.
Observation.referenceRange.​type	Base	preferred	Observation Reference Range Meaning Codes	📍4.0.1	FHIR Std.
Observation.referenceRange.​appliesTo	Base	example	Observation Reference Range Applies To Codes	📍4.0.1	FHIR Std.
Observation.component.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:weight.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:weight.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:weight.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:height.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:height.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:height.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:height.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​value[x].comparator	Base	required	QuantityComparator	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:diuresis_value.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​value[x]	Base	required	Concomitant Disease Category ValueSet	📦0.1.0-ci-build	This IG
Observation.component:concomitant_disease.​dataAbsentReason	Base	extensible	DataAbsentReason	📍4.0.1	FHIR Std.
Observation.component:concomitant_disease.​interpretation	Base	extensible	Observation Interpretation Codes	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Observation	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Observation	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
obs-3	error	Observation.referenceRange	Must have at least a low or a high or text	low.exists() or high.exists() or text.exists()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present	dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present	value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()

This structure is derived from Observation

Summary

Mandatory: 8 elements
Must-Support: 11 elements
Fixed: 8 elements
Prohibited: 1 element

Structures

This structure refers to these other structures:

• Transplant Recipient (https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/StructureDefinition/patient-transplant)
• Visit (https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/StructureDefinition/visit)

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Observation.component