description: 'The Eastern Cooperative Oncology Group (ECOG) Performance Status represents the patient''s functional status and is used to determine their ability to tolerate therapies in serious illness, specifically for chemotherapy. (Definition from: [LOINC](https://loinc.org/89262-0/))' package_name: hl7.fhir.us.mcode derivation: constraint name: ECOGPerformanceStatus type: Observation elements: category: pattern: type: CodeableConcept value: coding: - {code: survey, system: 'http://terminology.hl7.org/CodeSystem/observation-category'} index: 3 hasMember: {short: Not used in this profile, index: 17} interpretation: binding: {strength: required, valueSet: 'http://loinc.org/vs/LL529-9'} mustSupport: true index: 13 specimen: {short: Not used in this profile, index: 15} value: mustSupport: true choices: [valueInteger] index: 11 component: {short: Not used in this profile, index: 18} effectiveDateTime: {type: dateTime, mustSupport: true, choiceOf: effective, index: 8} status: {mustSupport: true, index: 2} effective: mustSupport: true choices: [effectiveDateTime, effectivePeriod] index: 7 code: mustSupport: true pattern: type: CodeableConcept value: coding: - {code: 89247-1, system: 'http://loinc.org'} index: 4 bodySite: {short: Not used in this profile, index: 14} device: {short: Not used in this profile, index: 16} basedOn: type: Reference refers: ['http://hl7.org/fhir/StructureDefinition/CarePlan', 'http://hl7.org/fhir/StructureDefinition/ServiceRequest'] index: 0 partOf: type: Reference refers: ['http://hl7.org/fhir/StructureDefinition/Procedure'] index: 1 valueInteger: {type: integer, mustSupport: true, choiceOf: value, index: 12} subject: type: Reference mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient'] index: 5 effectivePeriod: {type: Period, mustSupport: true, choiceOf: effective, index: 9} package_version: 1.16.0 class: profile kind: resource url: http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-ecog-performance-status base: http://hl7.org/fhir/StructureDefinition/Observation version: 1.16.0 required: [subject]