description: Measurements and simple assertions made about a patient, device or other subject. package_name: hl7.fhir.core derivation: specialization name: Observation type: Observation elements: category: {short: Classification of type of observation, type: CodeableConcept, array: true, index: 4} 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: 35 elements: low: {short: 'Low Range, if relevant', type: Quantity, index: 36} high: {short: 'High Range, if relevant', type: Quantity, index: 37} type: {short: Reference range qualifier, type: CodeableConcept, index: 38} appliesTo: {short: Reference range population, type: CodeableConcept, array: true, index: 39} age: {short: 'Applicable age range, if relevant', type: Range, index: 40} text: {type: string, short: Text based reference range in an observation, index: 41} hasMember: short: Related resource that belongs to the Observation group refers: ['http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse', 'http://hl7.org/fhir/StructureDefinition/Sequence'] type: Reference array: true isSummary: true index: 42 derivedFrom: 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/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse', 'http://hl7.org/fhir/StructureDefinition/Sequence'] type: Reference array: true isSummary: true index: 43 interpretation: {short: 'High, low, normal, etc.', type: CodeableConcept, index: 29} method: {short: How it was done, type: CodeableConcept, index: 32} valueTime: {short: Actual result, type: time, choiceOf: value, isSummary: true, index: 25} specimen: short: Specimen used for this observation refers: ['http://hl7.org/fhir/StructureDefinition/Specimen'] type: Reference index: 33 valueQuantity: {short: Actual result, type: Quantity, choiceOf: value, isSummary: true, index: 17} value: short: Actual result choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod] isSummary: true index: 16 valueString: {short: Actual result, type: string, choiceOf: value, isSummary: true, index: 19} valueRatio: {short: Actual result, type: Ratio, choiceOf: value, isSummary: true, index: 23} valueBoolean: {short: Actual result, type: boolean, choiceOf: value, isSummary: true, index: 20} valueDateTime: {short: Actual result, type: dateTime, choiceOf: value, isSummary: true, index: 26} component: short: Component results type: BackboneElement array: true isSummary: true index: 44 elements: referenceRange: elementReference: ['http://hl7.org/fhir/StructureDefinition/Observation', elements, referenceRange] short: Provides guide for interpretation of component result array: true index: 61 interpretation: {short: 'High, low, normal, etc.', type: CodeableConcept, index: 60} valueTime: {short: Actual component result, type: time, choiceOf: value, isSummary: true, index: 56} valueQuantity: {short: Actual component result, type: Quantity, choiceOf: value, isSummary: true, index: 48} value: short: Actual component result choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod] isSummary: true index: 47 valueString: {short: Actual component result, type: string, choiceOf: value, isSummary: true, index: 50} valueRatio: {short: Actual component result, type: Ratio, choiceOf: value, isSummary: true, index: 54} valueBoolean: {short: Actual component result, type: boolean, choiceOf: value, isSummary: true, index: 51} valueDateTime: {short: Actual component result, type: dateTime, choiceOf: value, isSummary: true, index: 57} valueSampledData: {short: Actual component result, type: SampledData, choiceOf: value, isSummary: true, index: 55} code: {short: Type of component observation (code / type), type: CodeableConcept, isSummary: true, index: 45} valueCodeableConcept: {short: Actual component result, type: CodeableConcept, choiceOf: value, isSummary: true, index: 49} valuePeriod: {short: Actual component result, type: Period, choiceOf: value, isSummary: true, index: 58} valueRange: {short: Actual component result, type: Range, choiceOf: value, isSummary: true, index: 53} valueInteger: {short: Actual component result, type: integer, choiceOf: value, isSummary: true, index: 52} dataAbsentReason: {short: Why the component result is missing, type: CodeableConcept, index: 59} required: [code] valueSampledData: {short: Actual result, type: SampledData, choiceOf: value, isSummary: true, index: 24} effectiveDateTime: {short: Clinically relevant time/time-period for observation, type: dateTime, choiceOf: effective, isSummary: true, index: 10} status: {isModifier: true, short: registered | preliminary | final | amended +, type: code, isSummary: true, index: 3} effective: short: Clinically relevant time/time-period for observation choices: [effectiveDateTime, effectivePeriod, effectiveTiming] isSummary: true index: 9 comment: {short: Comments about result, type: string, index: 30} code: {short: Type of observation (code / type), type: CodeableConcept, isSummary: true, index: 5} identifier: {short: Business Identifier for observation, type: Identifier, array: true, isSummary: true, index: 0} effectiveTiming: {short: Clinically relevant time/time-period for observation, type: Timing, choiceOf: effective, isSummary: true, index: 12} valueCodeableConcept: {short: Actual result, type: CodeableConcept, choiceOf: value, isSummary: true, index: 18} bodySite: {short: Observed body part, type: CodeableConcept, index: 31} 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: 7 issued: {short: Date/Time this version was made available, type: instant, isSummary: true, index: 13} valuePeriod: {short: Actual result, type: Period, choiceOf: value, isSummary: true, index: 27} device: short: (Measurement) Device refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/DeviceComponent', 'http://hl7.org/fhir/StructureDefinition/DeviceMetric'] type: Reference index: 34 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/ServiceRequest'] type: Reference array: true isSummary: true index: 1 valueRange: {short: Actual result, type: Range, choiceOf: value, isSummary: true, index: 22} partOf: 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 array: true isSummary: true index: 2 valueInteger: {short: Actual result, type: integer, choiceOf: value, isSummary: true, index: 21} 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: 6 performer: 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 array: true isSummary: true index: 14 dataAbsentReason: {short: Why the result is missing, type: CodeableConcept, index: 28} effectivePeriod: {short: Clinically relevant time/time-period for observation, type: Period, choiceOf: effective, isSummary: true, index: 11} package_version: 3.2.0 class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Observation base: http://hl7.org/fhir/StructureDefinition/DomainResource version: null required: [status, code]