description: The Karnofsky Performance Status (KPS) is a tool used to measure a patient's functional status. It can be used to compare the effectiveness of different therapies and to help assess the prognosis of certain patients, such as those with certain cancers. The KPS score ranges from 0 to 100 in intervals of 10. Higher scores are associated with better functional status, with 100 representing no symptoms or evidence of disease, and 0 representing death.
package_name: hl7.fhir.us.mcode
derivation: constraint
name: KarnofskyPerformanceStatus
type: Observation
elements:
  category:
    binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/observation-category'}
    index: 3
  referenceRange: {index: 20}
  hasMember: {index: 21}
  interpretation:
    binding: {strength: required, valueSet: 'http://loinc.org/vs/LL4986-7'}
    index: 16
  specimen: {index: 18}
  value:
    choices: [valueInteger]
    index: 12
  component: {index: 22}
  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: 89243-0, system: 'http://loinc.org'}
    index: 4
  bodySite: {index: 17}
  device: {index: 19}
  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, choiceOf: value, index: 13}
  subject:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient']
    index: 5
  performer:
    type: Reference
    refers: ['http://hl7.org/fhir/StructureDefinition/Practitioner']
    index: 10
  dataAbsentReason: {index: 15}
  effectivePeriod: {type: Period, mustSupport: true, choiceOf: effective, index: 9}
package_version: 1.0.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-karnofsky-performance-status
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 1.0.0
required: [value, subject, valueInteger]