description: Base StructureDefinition for Observation Resource package_name: hl7.fhir.r3.core derivation: specialization name: Observation type: Observation elements: category: {short: Classification of type of observation, type: CodeableConcept, array: true, index: 3} referenceRange: constraint: obs-3: {human: Must have at least a low or a high or text, severity: error, expression: low.exists() or high.exists() or text.exists()} short: Provides guide for interpretation type: BackboneElement array: true index: 33 elements: low: {short: 'Low Range, if relevant', type: Quantity, index: 34} high: {short: 'High Range, if relevant', type: Quantity, index: 35} type: {short: Reference range qualifier, type: CodeableConcept, index: 36} appliesTo: {short: Reference range population, type: CodeableConcept, array: true, index: 37} age: {short: 'Applicable age range, if relevant', type: Range, index: 38} text: {type: string, short: Text based reference range in an observation, index: 39} interpretation: {short: 'High, low, normal, etc.', type: CodeableConcept, index: 27} method: {short: How it was done, type: CodeableConcept, index: 30} valueTime: {short: Actual result, type: time, choiceOf: value, isSummary: true, index: 23} specimen: short: Specimen used for this observation refers: ['http://hl7.org/fhir/StructureDefinition/Specimen'] type: Reference index: 31 valueQuantity: {short: Actual result, type: Quantity, choiceOf: value, isSummary: true, index: 15} value: short: Actual result choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueRange, valueRatio, valueSampledData, valueAttachment, valueTime, valueDateTime, valuePeriod] isSummary: true index: 14 valueString: {short: Actual result, type: string, choiceOf: value, isSummary: true, index: 17} valueRatio: {short: Actual result, type: Ratio, choiceOf: value, isSummary: true, index: 20} valueBoolean: {short: Actual result, type: boolean, choiceOf: value, isSummary: true, index: 18} valueDateTime: {short: Actual result, type: dateTime, choiceOf: value, isSummary: true, index: 24} related: short: Resource related to this observation type: BackboneElement array: true isSummary: true index: 40 elements: type: {short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by, type: code, index: 41} target: short: Resource that is related to this one refers: ['http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse', 'http://hl7.org/fhir/StructureDefinition/Sequence'] type: Reference index: 42 required: [target] component: short: Component results type: BackboneElement array: true isSummary: true index: 43 elements: referenceRange: elementReference: ['http://hl7.org/fhir/StructureDefinition/Observation', elements, referenceRange] short: Provides guide for interpretation of component result array: true index: 59 interpretation: {short: 'High, low, normal, etc.', type: CodeableConcept, index: 58} valueTime: {short: Actual component result, type: time, choiceOf: value, isSummary: true, index: 54} valueQuantity: {short: Actual component result, type: Quantity, choiceOf: value, isSummary: true, index: 47} value: short: Actual component result choices: [valueQuantity, valueCodeableConcept, valueString, valueRange, valueRatio, valueSampledData, valueAttachment, valueTime, valueDateTime, valuePeriod] isSummary: true index: 46 valueString: {short: Actual component result, type: string, choiceOf: value, isSummary: true, index: 49} valueRatio: {short: Actual component result, type: Ratio, choiceOf: value, isSummary: true, index: 51} valueDateTime: {short: Actual component result, type: dateTime, choiceOf: value, isSummary: true, index: 55} valueSampledData: {short: Actual component result, type: SampledData, choiceOf: value, isSummary: true, index: 52} code: {short: Type of component observation (code / type), type: CodeableConcept, isSummary: true, index: 44} valueCodeableConcept: {short: Actual component result, type: CodeableConcept, choiceOf: value, isSummary: true, index: 48} valuePeriod: {short: Actual component result, type: Period, choiceOf: value, isSummary: true, index: 56} valueRange: {short: Actual component result, type: Range, choiceOf: value, isSummary: true, index: 50} valueAttachment: {short: Actual component result, type: Attachment, choiceOf: value, isSummary: true, index: 53} dataAbsentReason: {short: Why the component result is missing, type: CodeableConcept, index: 57} required: [code] valueSampledData: {short: Actual result, type: SampledData, choiceOf: value, isSummary: true, index: 21} effectiveDateTime: {short: Clinically relevant time/time-period for observation, type: dateTime, choiceOf: effective, isSummary: true, index: 9} status: {isModifier: true, short: registered | preliminary | final | amended +, type: code, isSummary: true, index: 2} effective: short: Clinically relevant time/time-period for observation choices: [effectiveDateTime, effectivePeriod] isSummary: true index: 8 comment: {short: Comments about result, type: string, index: 28} code: {short: Type of observation (code / type), type: CodeableConcept, isSummary: true, index: 4} identifier: {short: Business Identifier for observation, type: Identifier, array: true, isSummary: true, index: 0} valueCodeableConcept: {short: Actual result, type: CodeableConcept, choiceOf: value, isSummary: true, index: 16} bodySite: {short: Observed body part, type: CodeableConcept, index: 29} context: short: Healthcare event during which this observation is made refers: ['http://hl7.org/fhir/StructureDefinition/Encounter', 'http://hl7.org/fhir/StructureDefinition/EpisodeOfCare'] type: Reference index: 6 issued: {short: Date/Time this was made available, type: instant, isSummary: true, index: 11} valuePeriod: {short: Actual result, type: Period, choiceOf: value, isSummary: true, index: 25} device: short: (Measurement) Device refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/DeviceMetric'] type: Reference index: 32 basedOn: 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/ProcedureRequest', 'http://hl7.org/fhir/StructureDefinition/ReferralRequest'] type: Reference array: true isSummary: true index: 1 valueRange: {short: Actual result, type: Range, choiceOf: value, isSummary: true, index: 19} valueAttachment: {short: Actual result, type: Attachment, choiceOf: value, isSummary: true, index: 22} subject: short: Who and/or what this 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/Patient'] type: Reference isSummary: true index: 5 performer: short: Who is responsible for the observation refers: ['http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson'] type: Reference array: true isSummary: true index: 12 dataAbsentReason: {short: Why the result is missing, type: CodeableConcept, index: 26} effectivePeriod: {short: Clinically relevant time/time-period for observation, type: Period, choiceOf: effective, isSummary: true, index: 10} package_version: 3.0.2 class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Observation base: http://hl7.org/fhir/StructureDefinition/DomainResource version: null required: [status, code]