Observation

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

Properties

Name	Card	Type	Description
id	0..1	string	Logical id of this artifact
meta	0..1	Meta	Metadata about the resource
implicitRules	0..1	uri	A set of rules under which this content was created
language	0..1	code	Language of the resource content
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	0..*	Identifier	Business Identifier for observation
basedOn	0..*	Reference	Fulfills plan, proposal or order
partOf	0..*	Reference	Part of referenced event
status	1..1	code	registered | preliminary | final | amended +
category	0..*	CodeableConcept	Classification of type of observation
code	1..1	CodeableConcept	Type of observation (code / type)
subject	0..1	Reference	Who and/or what the observation is about
focus	0..*	Reference	What the observation is about, when it is not about the subject of record
encounter	0..1	Reference	Healthcare event during which this observation is made
effective[x]	0..1	dateTime	Clinically relevant time/time-period for observation
issued	0..1	instant	Date/Time this version was made available
performer	0..*	Reference	Who is responsible for the observation
value[x]	0..1	Quantity	Actual result
dataAbsentReason	0..1	CodeableConcept	Why the result is missing
interpretation	0..*	CodeableConcept	High, low, normal, etc.
note	0..*	Annotation	Comments about the observation
bodySite	0..1	CodeableConcept	Observed body part
method	0..1	CodeableConcept	How it was done
specimen	0..1	Reference	Specimen used for this observation
device	0..1	Reference	(Measurement) Device
referenceRange	0..*	BackboneElement	Provides guide for interpretation
hasMember	0..*	Reference	Related resource that belongs to the Observation group
derivedFrom	0..*	Reference	Related measurements the observation is made from
component	0..*	BackboneElement	Component results

Search Parameters

Name	Type	Description	Expression
code	token	The code of the observation type	Observation.code
date	date	Obtained date/time. If the obtained element is a period, a date that falls in the period	Observation.effective
identifier	token	The unique id for a particular observation	Observation.identifier
patient	reference	The subject that the observation is about (if patient)	Observation.subject
encounter	reference	Encounter related to the observation	Observation.encounter
based-on	reference	Reference to the service request.	Observation.basedOn
category	token	The classification of the type of observation	Observation.category
combo-code	token	The code of the observation type or component type	Observation.code
combo-data-absent-reason	token	The reason why the expected value in the element Observation.value[x] or Observation.component.value[x] is missing.	Observation.dataAbsentReason
combo-value-concept	token	The value or component value of the observation, if the value is a CodeableConcept	Observation.value
combo-value-quantity	quantity	The value or component value of the observation, if the value is a Quantity, or a SampledData (just search on the bounds of the values in sampled data)	Observation.value
component-code	token	The component code of the observation type	Observation.component.code
component-data-absent-reason	token	The reason why the expected value in the element Observation.component.value[x] is missing.	Observation.component.dataAbsentReason
component-value-concept	token	The value of the component observation, if the value is a CodeableConcept	Observation.component.value
component-value-quantity	quantity	The value of the component observation, if the value is a Quantity, or a SampledData (just search on the bounds of the values in sampled data)	Observation.component.value
data-absent-reason	token	The reason why the expected value in the element Observation.value[x] is missing.	Observation.dataAbsentReason
derived-from	reference	Related measurements the observation is made from	Observation.derivedFrom
device	reference	The Device that generated the observation data.	Observation.device
focus	reference	The focus of an observation when the focus is not the patient of record.	Observation.focus
has-member	reference	Related resource that belongs to the Observation group	Observation.hasMember
method	token	The method used for the observation	Observation.method
part-of	reference	Part of referenced event	Observation.partOf
performer	reference	Who performed the observation	Observation.performer
specimen	reference	Specimen used for this observation	Observation.specimen
status	token	The status of the observation	Observation.status
subject	reference	The subject that the observation is about	Observation.subject
value-concept	token	The value of the observation, if the value is a CodeableConcept	Observation.value
value-date	date	The value of the observation, if the value is a date or period of time	Observation.value
value-quantity	quantity	The value of the observation, if the value is a Quantity, or a SampledData (just search on the bounds of the values in sampled data)	Observation.value
value-string	string	The value of the observation, if the value is a string, and also searches in CodeableConcept.text	Observation.value
code-value-concept	composite	Code and coded value parameter pair
code-value-date	composite	Code and date/time value parameter pair
code-value-quantity	composite	Code and quantity value parameter pair
code-value-string	composite	Code and string value parameter pair
combo-code-value-concept	composite	Code and coded value parameter pair, including in components	Observation.component
combo-code-value-quantity	composite	Code and quantity value parameter pair, including in components	Observation.component
component-code-value-concept	composite	Component code and component coded value parameter pair	Observation.component
component-code-value-quantity	composite	Component code and component quantity value parameter pair	Observation.component