Observation class

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

Implemented types

• DomainResource

Annotations

• @freezed

Constructors

Observation.new({@Default(R5ResourceType.Observation) @JsonKey(unknownEnumValue: R5ResourceType.Observation) R5ResourceType resourceType, FhirId? id, FhirMeta? meta, FhirUri? implicitRules, @JsonKey(name: '_implicitRules') PrimitiveElement? implicitRulesElement, FhirCode? language, @JsonKey(name: '_language') PrimitiveElement? languageElement, Narrative? text, List<Resource>? contained, @JsonKey(name: 'extension') List<FhirExtension>? extension_, List<FhirExtension>? modifierExtension, List<Identifier>? identifier, FhirCanonical? instantiatesCanonical, @JsonKey(name: '_instantiatesCanonical') PrimitiveElement? instantiatesCanonicalElement, Reference? instantiatesReference, List<Reference>? basedOn, List<ObservationTriggeredBy>? triggeredBy, List<Reference>? partOf, FhirCode? status, @JsonKey(name: '_status') PrimitiveElement? statusElement, List<CodeableConcept>? category, required CodeableConcept code, Reference? subject, List<Reference>? focus, Reference? encounter, FhirDateTime? effectiveDateTime, @JsonKey(name: '_effectiveDateTime') PrimitiveElement? effectiveDateTimeElement, Period? effectivePeriod, Timing? effectiveTiming, FhirInstant? effectiveInstant, @JsonKey(name: '_effectiveInstant') PrimitiveElement? effectiveInstantElement, FhirInstant? issued, @JsonKey(name: '_issued') PrimitiveElement? issuedElement, List<Reference>? performer, Quantity? valueQuantity, CodeableConcept? valueCodeableConcept, String? valueString, @JsonKey(name: '_valueString') PrimitiveElement? valueStringElement, FhirBoolean? valueBoolean, @JsonKey(name: '_valueBoolean') PrimitiveElement? valueBooleanElement, FhirInteger? valueInteger, @JsonKey(name: '_valueInteger') PrimitiveElement? valueIntegerElement, Range? valueRange, Ratio? valueRatio, SampledData? valueSampledData, FhirTime? valueTime, @JsonKey(name: '_valueTime') PrimitiveElement? valueTimeElement, FhirDateTime? valueDateTime, @JsonKey(name: '_valueDateTime') PrimitiveElement? valueDateTimeElement, Period? valuePeriod, Attachment? valueAttachment, Reference? valueReference, CodeableConcept? dataAbsentReason, List<CodeableConcept>? interpretation, List<Annotation>? note, CodeableConcept? bodySite, Reference? bodyStructure, CodeableConcept? method, Reference? specimen, Reference? device, List<ObservationReferenceRange>? referenceRange, List<Reference>? hasMember, List<Reference>? derivedFrom, List<ObservationComponent>? component})

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

const

factory

Observation.fromJson(Map<String, dynamic> json)

Factory constructor, accepts Map<String, dynamic> as an argument

factory

Observation.fromJsonString(String source)

Acts like a constructor, returns a Observation, accepts a String as an argument, mostly because I got tired of typing it out

factory

Observation.fromYaml(dynamic yaml)

Factory constructor that accepts a String in YAML format as an argument

factory

Properties

basedOn → List<Reference>?

basedOn A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.

no setter, inherited

bodySite → CodeableConcept?

bodySite Indicates the site on the subject's body where the observation was made (i.e. the target site).

no setter, inherited

bodyStructure → Reference?

bodyStructure Indicates the body structure on the subject's body where the observation was made (i.e. the target site).

no setter, inherited

category → List<CodeableConcept>?

category A code that classifies the general type of observation being made.

no setter, inherited

children → List<FhirBase>

no setter, inherited

code → CodeableConcept

code Describes what was observed. Sometimes this is called the observation "name".

no setter, inherited

component → List<ObservationComponent>?

component Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

no setter, inherited

contained → List<Resource>?

contained These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

no setter, inherited

copyWith → $ObservationCopyWith<Observation>

no setter, inherited

dataAbsentReason → CodeableConcept?

dataAbsentReason Provides a reason why the expected value in the element Observation.valuex is missing.

no setter, inherited

derivedFrom → List<Reference>?

derivedFrom The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

no setter, inherited

device → Reference?

device A reference to the device that generates the measurements or the device settings for the device.

no setter, inherited

effectiveDateTime → FhirDateTime?

effectiveDateTime The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

no setter, inherited

effectiveDateTimeElement → PrimitiveElement?

effectiveDateTimeElement ("_effectiveDateTime") Extensions for effectiveDateTime

no setter, inherited

effectiveInstant → FhirInstant?

effectiveInstant The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

no setter, inherited

effectiveInstantElement → PrimitiveElement?

effectiveInstantElement ("_effectiveInstant") Extensions for effectiveInstant

no setter, inherited

effectivePeriod → Period?

effectivePeriod The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

no setter, inherited

effectiveTiming → Timing?

effectiveTiming The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

no setter, inherited

encounter → Reference?

encounter The healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.

no setter, inherited

extension_ → List<FhirExtension>?

extension_ ("extension") May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

no setter, inherited

fhirType → String

no setter, override

focus → List<Reference>?

focus The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

no setter, inherited

formatCommentsPost → List<String>

no setter, inherited

formatCommentsPre → List<String>

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

hasMember → List<Reference>?

hasMember This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

no setter, inherited

id → FhirId?

id The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

no setter, inherited

identifier → List<Identifier>?

identifier A unique identifier assigned to this observation.

no setter, inherited

implicitRules → FhirUri?

implicitRules A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

no setter, inherited

implicitRulesElement → PrimitiveElement?

implicitRulesElement ("_implicitRules") Extensions for implicitRules

no setter, inherited

instantiatesCanonical → FhirCanonical?

instantiatesCanonical The reference to a FHIR ObservationDefinition resource that provides the definition that is adhered to in whole or in part by this Observation instance.

no setter, inherited

instantiatesCanonicalElement → PrimitiveElement?

instantiatesCanonicalElement ("_instantiatesCanonical") Extensions for instantiatesCanonical

no setter, inherited

instantiatesReference → Reference?

instantiatesReference The reference to a FHIR ObservationDefinition resource that provides the definition that is adhered to in whole or in part by this Observation instance.

no setter, inherited

interpretation → List<CodeableConcept>?

interpretation A categorical assessment of an observation value. For example, high, low, normal.

no setter, inherited

isPrimitive → bool

no setter, inherited

issued → FhirInstant?

issued The date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.

no setter, inherited

issuedElement → PrimitiveElement?

issuedElement ("_issued") Extensions for issued

no setter, inherited

language → FhirCode?

language The base language in which the resource is written.

no setter, inherited

languageElement → PrimitiveElement?

languageElement ("_language") Extensions for language

no setter, inherited

meta → FhirMeta?

meta The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

no setter, inherited

method → CodeableConcept?

method Indicates the mechanism used to perform the observation.

no setter, inherited

modifierExtension → List<FhirExtension>?

modifierExtension May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

no setter, inherited

namedChildren → Map<String, FhirBase>

no setter, inherited

note → List<Annotation>?

note Comments about the observation or the results.

no setter, inherited

partOf → List<Reference>?

partOf A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.

no setter, inherited

path → String

Local Reference for this Resource, form is "ResourceType/Id"

no setter, override

performer → List<Reference>?

performer Who was responsible for asserting the observed value as "true".

no setter, inherited

referenceRange → List<ObservationReferenceRange>?

referenceRange Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two referenceRange elements would be used.

no setter, inherited

resourceType → R5ResourceType

resourceType This is a Observation resource

no setter, inherited

resourceTypeString → String

produce a string of the resourceType

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

specimen → Reference?

specimen The specimen that was used when this observation was made.

no setter, inherited

status → FhirCode?

status The status of the result value.

no setter, inherited

statusElement → PrimitiveElement?

statusElement ("_status") Extensions for status

no setter, inherited

subject → Reference?

subject The patient, or group of patients, location, device, organization, procedure or practitioner this observation is about and into whose or what record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the focus element or the code itself specifies the actual focus of the observation.

no setter, inherited

text → Narrative?

text A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

no setter, inherited

thisReference → Reference

Convenience method to return a Reference referring to that Resource

no setter, override

triggeredBy → List<ObservationTriggeredBy>?

triggeredBy Identifies the observation(s) that triggered the performance of this observation.

no setter, inherited

valueAttachment → Attachment?

valueAttachment The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueBoolean → FhirBoolean?

valueBoolean The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueBooleanElement → PrimitiveElement?

valueBooleanElement ("_valueBoolean") Extensions for valueBoolean

no setter, inherited

valueCodeableConcept → CodeableConcept?

valueCodeableConcept The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueDateTime → FhirDateTime?

valueDateTime The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueDateTimeElement → PrimitiveElement?

valueDateTimeElement ("_valueDateTime") Extensions for valueDateTime

no setter, inherited

valueInteger → FhirInteger?

valueInteger The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueIntegerElement → PrimitiveElement?

valueIntegerElement ("_valueInteger") Extensions for valueInteger

no setter, inherited

valuePeriod → Period?

valuePeriod The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueQuantity → Quantity?

valueQuantity The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueRange → Range?

valueRange The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueRatio → Ratio?

valueRatio The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueReference → Reference?

valueReference The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueSampledData → SampledData?

valueSampledData The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueString → String?

valueString The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueStringElement → PrimitiveElement?

valueStringElement ("_valueString") Extensions for valueString

no setter, inherited

valueTime → FhirTime?

valueTime The information determined as a result of making the observation, if the information has a simple value.

no setter, inherited

valueTimeElement → PrimitiveElement?

valueTimeElement ("_valueTime") Extensions for valueTime

no setter, inherited

Methods

addAnnotation(dynamic annotation) → void

inherited

addPropertyChangedListener(String property, void listener()) → void

inherited

annotations(Type type) → Iterable

inherited

clearUserData(String name) → void

inherited

clone() → FhirBase

inherited

deepCopy() → FhirBase

inherited

getUserData(String name) → dynamic

inherited

getUserInt(String name) → int

inherited

getUserString(String name) → String?

inherited

hasFormatComment() → bool

inherited

hasUserData(String name) → bool

inherited

isEmpty() → bool

inherited

isExactly(FhirBase other) → bool

inherited

matches(FhirBase other) → bool

inherited

newId() → Resource

returns the same resource with a new ID (even if there is already an ID present)

override

newIdIfNoId() → Resource

returns the same resource with a new ID if there is no current ID

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyPropertyChanged(String property) → void

inherited

primitiveValue() → String?

inherited

removeAnnotations(Type type) → void

inherited

removePropertyChangedListener(String property, void listener()) → void

inherited

setUserData(String name, dynamic value) → void

inherited

toJson() → Map<String, dynamic>

inherited

toJsonString() → String

Another convenience method because more and more I'm transmitting FHIR data as a String and not a Map

override

toJsonWithType() → dynamic

inherited

toString() → String

A string representation of this object.

inherited

toYaml() → String

Produces a Yaml formatted String version of the object

override

tryGetValue(String key, dynamic value) → bool

inherited

updateVersion({FhirMeta? oldMeta}) → Resource

Updates the meta field of this Resource, updates the meta.lastUpdated field, adds 1 to the version number

override

validate() → List<String>

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited