http://hl7.org/fhir/StructureDefinition/Observation|4.0.1

Measurements and simple assertions made about a patient, device or other subject.

Structure JSON Dependencies FHIRSchema Other Versions Dependant (0)Elements Summary

Name	Flags	Card	Type	Description & Constraints
Observation		0..*		Measurements and simple assertions
identifier	Σ	0..*	Identifier	Business Identifier for observation
basedOn	Σ	0..*	Reference	Fulfills plan, proposal or order
partOf	Σ	0..*	Reference	Part of referenced event
status *	?!Σ	1..1	code	registered \| preliminary \| final \| amended + ObservationStatus (required)
category		0..*	CodeableConcept	Classification of type of observation ObservationCategory (preferred)
code *	Σ	1..1	CodeableConcept	Type of observation (code / type) ObservationCode (example)
subject	Σ	0..1	Reference	Who and/or what the observation is about
focus	Σ	0..*	Reference	What the observation is about, when it is not about the subject of record
encounter	Σ	0..1	Reference	Healthcare event during which this observation is made
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime	Σ	0..1	dateTime
effectivePeriod	Σ	0..1	Period
effectiveTiming	Σ	0..1	Timing
effectiveInstant	Σ	0..1	instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference	Who is responsible for the observation
value[x]	Σ	0..1		Actual result
valueQuantity	Σ	0..1	Quantity
valueCodeableConcept	Σ	0..1	CodeableConcept
valueString	Σ	0..1	string
valueBoolean	Σ	0..1	boolean
valueInteger	Σ	0..1	integer
valueRange	Σ	0..1	Range
valueRatio	Σ	0..1	Ratio
valueSampledData	Σ	0..1	SampledData
valueTime	Σ	0..1	time
valueDateTime	Σ	0..1	dateTime
valuePeriod	Σ	0..1	Period
dataAbsentReason		0..1	CodeableConcept	Why the result is missing ObservationValueAbsentReason (extensible)
interpretation		0..*	CodeableConcept	High, low, normal, etc. ObservationInterpretation (extensible)
note		0..*	Annotation	Comments about the observation
bodySite		0..1	CodeableConcept	Observed body part BodySite (example)
method		0..1	CodeableConcept	How it was done ObservationMethod (example)
specimen		0..1	Reference	Specimen used for this observation
device		0..1	Reference	(Measurement) Device
referenceRange		0..*	BackboneElement	Provides guide for interpretation
low		0..1	Quantity	Low Range, if relevant
high		0..1	Quantity	High Range, if relevant
type		0..1	CodeableConcept	Reference range qualifier ObservationRangeMeaning (preferred)
appliesTo		0..*	CodeableConcept	Reference range population ObservationRangeType (example)
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	Σ	0..*	Reference	Related resource that belongs to the Observation group
derivedFrom	Σ	0..*	Reference	Related measurements the observation is made from
component	Σ	0..*	BackboneElement	Component results
code *	Σ	1..1	CodeableConcept	Type of component observation (code / type) ObservationCode (example)
value[x]	Σ	0..1		Actual component result
valueQuantity	Σ	0..1	Quantity
valueCodeableConcept	Σ	0..1	CodeableConcept
valueString	Σ	0..1	string
valueBoolean	Σ	0..1	boolean
valueInteger	Σ	0..1	integer
valueRange	Σ	0..1	Range
valueRatio	Σ	0..1	Ratio
valueSampledData	Σ	0..1	SampledData
valueTime	Σ	0..1	time
valueDateTime	Σ	0..1	dateTime
valuePeriod	Σ	0..1	Period
dataAbsentReason		0..1	CodeableConcept	Why the component result is missing ObservationValueAbsentReason (extensible)
interpretation		0..*	CodeableConcept	High, low, normal, etc. ObservationInterpretation (extensible)
referenceRange		0..*		Provides guide for interpretation of component result