description: Measurements and simple assertions made about a patient, device or other subject. package_name: hl7.fhir.r5.examples 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: 12 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: 47 type: BackboneElement mustSupport: false array: true elements: low: {isModifier: false, short: 'Low Range, if relevant', type: Quantity, mustSupport: false, isSummary: false, index: 48} high: {isModifier: false, short: 'High Range, if relevant', type: Quantity, mustSupport: false, isSummary: false, index: 49} normalValue: isModifier: false short: Normal value, if relevant type: CodeableConcept mustSupport: false binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/observation-referencerange-normalvalue'} isSummary: false index: 50 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: 51 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: 52 age: {isModifier: false, short: 'Applicable age range, if relevant', type: Range, mustSupport: false, isSummary: false, index: 53} text: {isModifier: false, short: Text based reference range in an observation, type: string, mustSupport: false, isSummary: false, index: 54} 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: 55 instantiatesCanonical: {isModifier: false, short: Instantiates FHIR ObservationDefinition, type: canonical, mustSupport: false, choiceOf: instantiates, isSummary: true, index: 3} instantiatesReference: isModifier: false short: Instantiates FHIR ObservationDefinition refers: ['http://hl7.org/fhir/StructureDefinition/ObservationDefinition'] type: Reference mustSupport: false choiceOf: instantiates isSummary: true index: 4 instantiates: isModifier: false short: Instantiates FHIR ObservationDefinition mustSupport: false choices: [instantiatesCanonical, instantiatesReference] isSummary: true index: 2 derivedFrom: isModifier: false short: Related resource from which the observation is made refers: ['http://hl7.org/fhir/StructureDefinition/DocumentReference', 'http://hl7.org/fhir/StructureDefinition/GenomicStudy', 'http://hl7.org/fhir/StructureDefinition/ImagingSelection', 'http://hl7.org/fhir/StructureDefinition/ImagingStudy', '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: 56 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: 40 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: 16 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: 44 valueTime: {isModifier: false, short: Actual result, type: time, mustSupport: false, choiceOf: value, isSummary: true, index: 35} specimen: constraint: obs-9: {human: 'If Observation.specimen is a reference to Group, the group can only have specimens', source: 'http://hl7.org/fhir/StructureDefinition/Observation', severity: error, expression: reference = 'Group' implies member.entity.resolve() is Specimen} isModifier: false short: Specimen used for this observation refers: ['http://hl7.org/fhir/StructureDefinition/Group', 'http://hl7.org/fhir/StructureDefinition/Specimen'] type: Reference mustSupport: false isSummary: false index: 45 valueQuantity: {isModifier: false, short: Actual result, type: Quantity, mustSupport: false, choiceOf: value, isSummary: true, index: 27} value: isModifier: false short: Actual result mustSupport: false choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod, valueAttachment] isSummary: true index: 26 valueString: {isModifier: false, short: Actual result, type: string, mustSupport: false, choiceOf: value, isSummary: true, index: 29} valueRatio: {isModifier: false, short: Actual result, type: Ratio, mustSupport: false, choiceOf: value, isSummary: true, index: 33} valueBoolean: {isModifier: false, short: Actual result, type: boolean, mustSupport: false, choiceOf: value, isSummary: true, index: 30} valueDateTime: {isModifier: false, short: Actual result, type: dateTime, mustSupport: false, choiceOf: value, isSummary: true, index: 36} component: isModifier: false short: Component results index: 57 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: 75 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: 74 valueTime: {isModifier: false, short: Actual component result, type: time, mustSupport: false, choiceOf: value, isSummary: true, index: 69} valueQuantity: {isModifier: false, short: Actual component result, type: Quantity, mustSupport: false, choiceOf: value, isSummary: true, index: 61} value: isModifier: false short: Actual component result mustSupport: false choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod, valueAttachment] isSummary: true index: 60 valueString: {isModifier: false, short: Actual component result, type: string, mustSupport: false, choiceOf: value, isSummary: true, index: 63} valueRatio: {isModifier: false, short: Actual component result, type: Ratio, mustSupport: false, choiceOf: value, isSummary: true, index: 67} valueBoolean: {isModifier: false, short: Actual component result, type: boolean, mustSupport: false, choiceOf: value, isSummary: true, index: 64} valueDateTime: {isModifier: false, short: Actual component result, type: dateTime, mustSupport: false, choiceOf: value, isSummary: true, index: 70} valueSampledData: {isModifier: false, short: Actual component result, type: SampledData, mustSupport: false, choiceOf: value, isSummary: true, index: 68} 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: 58 valueCodeableConcept: {isModifier: false, short: Actual component result, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: true, index: 62} valuePeriod: {isModifier: false, short: Actual component result, type: Period, mustSupport: false, choiceOf: value, isSummary: true, index: 71} valueRange: {isModifier: false, short: Actual component result, type: Range, mustSupport: false, choiceOf: value, isSummary: true, index: 66} valueInteger: {isModifier: false, short: Actual component result, type: integer, mustSupport: false, choiceOf: value, isSummary: true, index: 65} valueAttachment: {isModifier: false, short: Actual component result, type: Attachment, mustSupport: false, choiceOf: value, isSummary: true, index: 72} 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: 73 required: [code] isSummary: true note: {isModifier: false, short: Comments about the observation, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 41} valueSampledData: {isModifier: false, short: Actual result, type: SampledData, mustSupport: false, choiceOf: value, isSummary: true, index: 34} effectiveDateTime: {isModifier: false, short: Clinically relevant time/time-period for observation, type: dateTime, mustSupport: false, choiceOf: effective, isSummary: true, index: 19} status: isModifier: true short: registered | preliminary | final | amended + index: 11 type: code mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/observation-status|5.0.0-snapshot3'} 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: 18 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: 13 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: 21} valueCodeableConcept: {isModifier: false, short: Actual result, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: true, index: 28} 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: 42 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: 15 issued: {isModifier: false, short: Date/Time this version was made available, type: instant, mustSupport: false, isSummary: true, index: 23} valuePeriod: {isModifier: false, short: Actual result, type: Period, mustSupport: false, choiceOf: value, isSummary: true, index: 37} 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: 46 effectiveInstant: {isModifier: false, short: Clinically relevant time/time-period for observation, type: instant, mustSupport: false, choiceOf: effective, isSummary: true, index: 22} 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: 5 valueRange: {isModifier: false, short: Actual result, type: Range, mustSupport: false, choiceOf: value, isSummary: true, index: 32} partOf: isModifier: false short: Part of referenced event refers: ['http://hl7.org/fhir/StructureDefinition/GenomicStudy', '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/MedicationUsage', 'http://hl7.org/fhir/StructureDefinition/Procedure'] type: Reference mustSupport: false array: true isSummary: true index: 10 bodyStructure: constraint: obs-8: {human: bodyStructure SHALL only be present if Observation.bodySite is not present, source: 'http://hl7.org/fhir/StructureDefinition/Observation', severity: error, expression: bodyStructure.empty() or bodySite.empty()} isModifier: false short: Observed body structure refers: ['http://hl7.org/fhir/StructureDefinition/BodyStructure'] type: Reference mustSupport: false isSummary: false index: 43 valueInteger: {isModifier: false, short: Actual result, type: integer, mustSupport: false, choiceOf: value, isSummary: true, index: 31} valueAttachment: {isModifier: false, short: Actual result, type: Attachment, mustSupport: false, choiceOf: value, isSummary: true, index: 38} triggeredBy: isModifier: false short: Triggering observation(s) index: 6 type: BackboneElement mustSupport: false array: true elements: observation: isModifier: false short: Triggering observation refers: ['http://hl7.org/fhir/StructureDefinition/Observation'] type: Reference mustSupport: false isSummary: true index: 7 type: isModifier: false short: reflex | repeat | re-run type: code mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/observation-triggeredbytype|5.0.0-snapshot3'} isSummary: true index: 8 reason: {isModifier: false, short: Reason that the observation was triggered, type: string, mustSupport: false, isSummary: false, index: 9} required: [type, observation] isSummary: false subject: isModifier: false short: Who and/or what the observation is about refers: ['http://hl7.org/fhir/StructureDefinition/BiologicallyDerivedProduct', '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/NutritionProduct', '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: 14 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: 24 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: 39 effectivePeriod: {isModifier: false, short: Clinically relevant time/time-period for observation, type: Period, mustSupport: false, choiceOf: effective, isSummary: true, index: 20} package_version: 5.0.0-snapshot3 class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Observation base: http://hl7.org/fhir/StructureDefinition/DomainResource version: 5.0.0-snapshot3 required: [status, code]