description: Measurements and simple assertions made about a patient, device or other subject. package_name: hl7.fhir.r4b.core derivation: specialization name: Observation type: Observation elements: category: isModifier: false short: Classification of type of observation type: CodeableConcept mustSupport: false array: true binding: {strength: preferred, valueSet: 'http://hl7.org/fhir/ValueSet/observation-category'} isSummary: false index: 4 referenceRange: constraint: obs-3: {human: Must have at least a low or a high or text, source: 'http://hl7.org/fhir/StructureDefinition/Observation', severity: error, expression: low.exists() or high.exists() or text.exists()} isModifier: false short: Provides guide for interpretation index: 37 type: BackboneElement mustSupport: false array: true elements: low: {isModifier: false, short: 'Low Range, if relevant', type: Quantity, mustSupport: false, isSummary: false, index: 38} high: {isModifier: false, short: 'High Range, if relevant', type: Quantity, mustSupport: false, isSummary: false, index: 39} type: isModifier: false short: Reference range qualifier type: CodeableConcept mustSupport: false binding: {strength: preferred, valueSet: 'http://hl7.org/fhir/ValueSet/referencerange-meaning'} isSummary: false index: 40 appliesTo: isModifier: false short: Reference range population type: CodeableConcept mustSupport: false array: true binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/referencerange-appliesto'} isSummary: false index: 41 age: {isModifier: false, short: 'Applicable age range, if relevant', type: Range, mustSupport: false, isSummary: false, index: 42} text: {isModifier: false, short: Text based reference range in an observation, type: string, mustSupport: false, isSummary: false, index: 43} isSummary: false hasMember: isModifier: false short: Related resource that belongs to the Observation group refers: ['http://hl7.org/fhir/StructureDefinition/MolecularSequence', 'http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse'] type: Reference mustSupport: false array: true isSummary: true index: 44 derivedFrom: isModifier: false short: Related measurements the observation is made from refers: ['http://hl7.org/fhir/StructureDefinition/DocumentReference', 'http://hl7.org/fhir/StructureDefinition/ImagingStudy', 'http://hl7.org/fhir/StructureDefinition/Media', 'http://hl7.org/fhir/StructureDefinition/MolecularSequence', 'http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse'] type: Reference mustSupport: false array: true isSummary: true index: 45 interpretation: isModifier: false short: High, low, normal, etc. type: CodeableConcept mustSupport: false array: true binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/observation-interpretation'} isSummary: false index: 31 encounter: isModifier: false short: Healthcare event during which this observation is made refers: ['http://hl7.org/fhir/StructureDefinition/Encounter'] type: Reference mustSupport: false isSummary: true index: 8 method: isModifier: false short: How it was done type: CodeableConcept mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/observation-methods'} isSummary: false index: 34 valueTime: {isModifier: false, short: Actual result, type: time, mustSupport: false, choiceOf: value, isSummary: true, index: 27} specimen: isModifier: false short: Specimen used for this observation refers: ['http://hl7.org/fhir/StructureDefinition/Specimen'] type: Reference mustSupport: false isSummary: false index: 35 valueQuantity: {isModifier: false, short: Actual result, type: Quantity, mustSupport: false, choiceOf: value, isSummary: true, index: 19} value: isModifier: false short: Actual result mustSupport: false choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod] isSummary: true index: 18 valueString: {isModifier: false, short: Actual result, type: string, mustSupport: false, choiceOf: value, isSummary: true, index: 21} valueRatio: {isModifier: false, short: Actual result, type: Ratio, mustSupport: false, choiceOf: value, isSummary: true, index: 25} valueBoolean: {isModifier: false, short: Actual result, type: boolean, mustSupport: false, choiceOf: value, isSummary: true, index: 22} valueDateTime: {isModifier: false, short: Actual result, type: dateTime, mustSupport: false, choiceOf: value, isSummary: true, index: 28} component: isModifier: false short: Component results index: 46 type: BackboneElement mustSupport: false array: true elements: referenceRange: elementReference: ['http://hl7.org/fhir/StructureDefinition/Observation', elements, referenceRange] isModifier: false short: Provides guide for interpretation of component result mustSupport: false array: true isSummary: false index: 63 interpretation: isModifier: false short: High, low, normal, etc. type: CodeableConcept mustSupport: false array: true binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/observation-interpretation'} isSummary: false index: 62 valueTime: {isModifier: false, short: Actual component result, type: time, mustSupport: false, choiceOf: value, isSummary: true, index: 58} valueQuantity: {isModifier: false, short: Actual component result, type: Quantity, mustSupport: false, choiceOf: value, isSummary: true, index: 50} value: isModifier: false short: Actual component result mustSupport: false choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod] isSummary: true index: 49 valueString: {isModifier: false, short: Actual component result, type: string, mustSupport: false, choiceOf: value, isSummary: true, index: 52} valueRatio: {isModifier: false, short: Actual component result, type: Ratio, mustSupport: false, choiceOf: value, isSummary: true, index: 56} valueBoolean: {isModifier: false, short: Actual component result, type: boolean, mustSupport: false, choiceOf: value, isSummary: true, index: 53} valueDateTime: {isModifier: false, short: Actual component result, type: dateTime, mustSupport: false, choiceOf: value, isSummary: true, index: 59} valueSampledData: {isModifier: false, short: Actual component result, type: SampledData, mustSupport: false, choiceOf: value, isSummary: true, index: 57} code: isModifier: false short: Type of component observation (code / type) type: CodeableConcept mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/observation-codes'} isSummary: true index: 47 valueCodeableConcept: {isModifier: false, short: Actual component result, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: true, index: 51} valuePeriod: {isModifier: false, short: Actual component result, type: Period, mustSupport: false, choiceOf: value, isSummary: true, index: 60} valueRange: {isModifier: false, short: Actual component result, type: Range, mustSupport: false, choiceOf: value, isSummary: true, index: 55} valueInteger: {isModifier: false, short: Actual component result, type: integer, mustSupport: false, choiceOf: value, isSummary: true, index: 54} dataAbsentReason: isModifier: false short: Why the component result is missing type: CodeableConcept mustSupport: false binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/data-absent-reason'} isSummary: false index: 61 required: [code] isSummary: true note: {isModifier: false, short: Comments about the observation, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 32} valueSampledData: {isModifier: false, short: Actual result, type: SampledData, mustSupport: false, choiceOf: value, isSummary: true, index: 26} effectiveDateTime: {isModifier: false, short: Clinically relevant time/time-period for observation, type: dateTime, mustSupport: false, choiceOf: effective, isSummary: true, index: 11} status: isModifier: true short: registered | preliminary | final | amended + index: 3 type: code mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/observation-status|4.3.0'} isModifierReason: This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid isSummary: true effective: isModifier: false short: Clinically relevant time/time-period for observation mustSupport: false choices: [effectiveDateTime, effectivePeriod, effectiveTiming, effectiveInstant] isSummary: true index: 10 code: isModifier: false short: Type of observation (code / type) type: CodeableConcept mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/observation-codes'} isSummary: true index: 5 identifier: {isModifier: false, short: Business Identifier for observation, type: Identifier, mustSupport: false, array: true, isSummary: true, index: 0} effectiveTiming: {isModifier: false, short: Clinically relevant time/time-period for observation, type: Timing, mustSupport: false, choiceOf: effective, isSummary: true, index: 13} valueCodeableConcept: {isModifier: false, short: Actual result, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: true, index: 20} bodySite: isModifier: false short: Observed body part type: CodeableConcept mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/body-site'} isSummary: false index: 33 focus: isModifier: false short: What the observation is about, when it is not about the subject of record refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] type: Reference mustSupport: false array: true isSummary: true index: 7 issued: {isModifier: false, short: Date/Time this version was made available, type: instant, mustSupport: false, isSummary: true, index: 15} valuePeriod: {isModifier: false, short: Actual result, type: Period, mustSupport: false, choiceOf: value, isSummary: true, index: 29} device: isModifier: false short: (Measurement) Device refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/DeviceMetric'] type: Reference mustSupport: false isSummary: false index: 36 effectiveInstant: {isModifier: false, short: Clinically relevant time/time-period for observation, type: instant, mustSupport: false, choiceOf: effective, isSummary: true, index: 14} basedOn: isModifier: false short: Fulfills plan, proposal or order refers: ['http://hl7.org/fhir/StructureDefinition/CarePlan', 'http://hl7.org/fhir/StructureDefinition/DeviceRequest', 'http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation', 'http://hl7.org/fhir/StructureDefinition/MedicationRequest', 'http://hl7.org/fhir/StructureDefinition/NutritionOrder', 'http://hl7.org/fhir/StructureDefinition/ServiceRequest'] type: Reference mustSupport: false array: true isSummary: true index: 1 valueRange: {isModifier: false, short: Actual result, type: Range, mustSupport: false, choiceOf: value, isSummary: true, index: 24} partOf: isModifier: false short: Part of referenced event refers: ['http://hl7.org/fhir/StructureDefinition/ImagingStudy', 'http://hl7.org/fhir/StructureDefinition/Immunization', 'http://hl7.org/fhir/StructureDefinition/MedicationAdministration', 'http://hl7.org/fhir/StructureDefinition/MedicationDispense', 'http://hl7.org/fhir/StructureDefinition/MedicationStatement', 'http://hl7.org/fhir/StructureDefinition/Procedure'] type: Reference mustSupport: false array: true isSummary: true index: 2 valueInteger: {isModifier: false, short: Actual result, type: integer, mustSupport: false, choiceOf: value, isSummary: true, index: 23} subject: isModifier: false short: Who and/or what the observation is about refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/Group', 'http://hl7.org/fhir/StructureDefinition/Location', 'http://hl7.org/fhir/StructureDefinition/Medication', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/Procedure', 'http://hl7.org/fhir/StructureDefinition/Substance'] type: Reference mustSupport: false isSummary: true index: 6 performer: isModifier: false short: Who is responsible for the observation refers: ['http://hl7.org/fhir/StructureDefinition/CareTeam', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson'] type: Reference mustSupport: false array: true isSummary: true index: 16 dataAbsentReason: isModifier: false short: Why the result is missing type: CodeableConcept mustSupport: false binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/data-absent-reason'} isSummary: false index: 30 effectivePeriod: {isModifier: false, short: Clinically relevant time/time-period for observation, type: Period, mustSupport: false, choiceOf: effective, isSummary: true, index: 12} package_version: 4.3.0 class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Observation base: http://hl7.org/fhir/StructureDefinition/DomainResource version: 4.3.0 required: [status, code]