Observation class

Observation Measurements and simple assertions made about a patient,

Mixed in types
Annotations
  • @freezed

Constructors

Observation({@Default(R4ResourceType.Observation) @JsonKey(unknownEnumValue: R4ResourceType.Observation) R4ResourceType resourceType, @JsonKey(includeFromJson: true, includeToJson: false) int? dbId, @JsonKey(name: 'id') String? fhirId, FhirMeta? meta, FhirUri? implicitRules, @JsonKey(name: '_implicitRules') Element? implicitRulesElement, FhirCode? language, @JsonKey(name: '_language') Element? languageElement, Narrative? text, List<Resource>? contained, @JsonKey(name: 'extension') List<FhirExtension>? extension_, List<FhirExtension>? modifierExtension, List<Identifier>? identifier, List<Reference>? basedOn, List<Reference>? partOf, FhirCode? status, @JsonKey(name: '_status') Element? statusElement, List<CodeableConcept>? category, required CodeableConcept code, Reference? subject, List<Reference>? focus, Reference? encounter, FhirDateTime? effectiveDateTime, @JsonKey(name: '_effectiveDateTime') Element? effectiveDateTimeElement, Period? effectivePeriod, Timing? effectiveTiming, FhirInstant? effectiveInstant, @JsonKey(name: '_effectiveInstant') Element? effectiveInstantElement, FhirInstant? issued, @JsonKey(name: '_issued') Element? issuedElement, List<Reference>? performer, Quantity? valueQuantity, CodeableConcept? valueCodeableConcept, String? valueString, @JsonKey(name: '_valueString') Element? valueStringElement, FhirBoolean? valueBoolean, @JsonKey(name: '_valueBoolean') Element? valueBooleanElement, FhirInteger? valueInteger, @JsonKey(name: '_valueInteger') Element? valueIntegerElement, Range? valueRange, Ratio? valueRatio, SampledData? valueSampledData, FhirTime? valueTime, @JsonKey(name: '_valueTime') Element? valueTimeElement, FhirDateTime? valueDateTime, @JsonKey(name: '_valueDateTime') Element? valueDateTimeElement, Period? valuePeriod, CodeableConcept? dataAbsentReason, List<CodeableConcept>? interpretation, List<Annotation>? note, CodeableConcept? bodySite, 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 setterinherited
bodySite → CodeableConcept?
bodySite Indicates the site on the subject's body where the observation was made (i.e. the target site).
no setterinherited
category → List<CodeableConcept>?
category A code that classifies the general type of observation being made.
no setterinherited
code → CodeableConcept
code Describes what was observed. Sometimes this is called the observation "name".
no setterinherited
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 setterinherited
contained → List<Resource>?
contained These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
no setterinherited
copyWith → $ObservationCopyWith<Observation>
no setterinherited
dataAbsentReason → CodeableConcept?
dataAbsentReason Provides a reason why the expected value in the element Observation.valuex is missing.
no setterinherited
dbId → int?
no setterinherited
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 setterinherited
device → Reference?
device The device used to generate the observation data.
no setterinherited
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 setterinherited
effectiveDateTimeElement → Element?
effectiveDateTimeElement Extensions for effectiveDateTime
no setterinherited
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 setterinherited
effectiveInstantElement → Element?
effectiveInstantElement Extensions for effectiveInstant
no setterinherited
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 setterinherited
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 setterinherited
encounter → Reference?
encounter The healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.
no setterinherited
extension_ → List<FhirExtension>?
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 manageable, 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 setterinherited
fhirId → String?
id The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
no setterinherited
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 setterinherited
hashCode → int
The hash code for this object.
no setterinherited
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 setterinherited
identifier → List<Identifier>?
identifier A unique identifier assigned to this observation.
no setterinherited
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 setterinherited
implicitRulesElement → Element?
implicitRulesElement Extensions for implicitRules
no setterinherited
interpretation → List<CodeableConcept>?
interpretation A categorical assessment of an observation value. For example, high, low, normal.
no setterinherited
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 setterinherited
issuedElement → Element?
issuedElement Extensions for issued
no setterinherited
language → FhirCode?
language The base language in which the resource is written.
no setterinherited
languageElement → Element?
languageElement Extensions for language
no setterinherited
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 setterinherited
method → CodeableConcept?
method Indicates the mechanism used to perform the observation.
no setterinherited
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 manageable, 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 setterinherited
note → List<Annotation>?
note Comments about the observation or the results.
no setterinherited
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 setterinherited
path → String
Local Reference for this Resource, form is "ResourceType/Id"
no setterinherited
performer → List<Reference>?
performer Who was responsible for asserting the observed value as "true".
no setterinherited
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 setterinherited
resourceType → R4ResourceType
no setterinherited
resourceTypeString → String?
produce a string of the resourceType
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
specimen → Reference?
specimen The specimen that was used when this observation was made.
no setterinherited
status → FhirCode?
status The status of the result value.
no setterinherited
statusElement → Element?
statusElement Extensions for status
no setterinherited
subject → Reference?
subject The patient, or group of patients, location, or device this observation is about and into whose 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 setterinherited
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 setterinherited
thisReference → Reference
Convenience method to return a Reference referring to that Resource
no setterinherited
valueBoolean → FhirBoolean?
valueBoolean The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueBooleanElement → Element?
valueBooleanElement Extensions for valueBoolean
no setterinherited
valueCodeableConcept → CodeableConcept?
valueCodeableConcept The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueDateTime → FhirDateTime?
valueDateTime The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueDateTimeElement → Element?
valueDateTimeElement Extensions for valueDateTime
no setterinherited
valueInteger → FhirInteger?
valueInteger The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueIntegerElement → Element?
valueIntegerElement Extensions for valueInteger
no setterinherited
valuePeriod → Period?
valuePeriod The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueQuantity → Quantity?
valueQuantity The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueRange → Range?
valueRange The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueRatio → Ratio?
valueRatio The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueSampledData → SampledData?
valueSampledData The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueString → String?
valueString The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueStringElement → Element?
valueStringElement Extensions for valueString
no setterinherited
valueTime → FhirTime?
valueTime The information determined as a result of making the observation, if the information has a simple value.
no setterinherited
valueTimeElement → Element?
valueTimeElement Extensions for valueTime
no setterinherited

Methods

newId() → Resource
returns the same resource with a new ID (even if there is already an ID present)
inherited
newIdIfNoId() → Resource
returns the same resource with a new ID if there is no current ID
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDbJson() → Map<String, dynamic>
The normal toJson ignores the dbId, and produces the fhirId as the id However, if you're going to use this as a database entry, you have to switch those two ids
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
toString() → String
A string representation of this object.
inherited
toYaml() → String
Produces a Yaml formatted String version of the object
inherited
updateVersion({FhirMeta? oldMeta}) → Resource
Updates the meta field of this Resource, updates the meta.lastUpdated field, adds 1 to the version number
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited