description: 'General structure for capturing comorbid conditions with respect to a primary (''index'') condition. The user can use this profile in three ways: (1) free-form, listing any conditions they wish to highlight as significant comorbidities, (2) following a formal paradigm such as the Charlson Comorbidity Index or the NCI Comorbidity Index, or (3) use disease categories defined for registry reporting purposes, such as those defined by Center for International Blood and Marrow Transplant Research (CIBMTR).'
package_name: hl7.fhir.us.mcode
derivation: constraint
name: Comorbidities
type: Observation
elements:
  hasMember: {short: Not used in this profile, index: 17}
  method: {short: Comorbidity framework used., index: 14}
  specimen: {short: Not used in this profile, index: 15}
  valueQuantity: {type: Quantity, choiceOf: value, index: 11}
  value:
    choices: [valueQuantity, valueInteger]
    index: 10
  component: {short: Not used in this profile, index: 18}
  extension:
    mustSupport: true
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: null
      slices:
        comorbidConditionPresent:
          match: {url: null}
          schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-related-condition', index: 1}
          min: 0
        comorbidConditionAbsent:
          match: {url: null}
          schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-related-condition-absent', index: 2}
          min: 0
  status: {mustSupport: true, index: 3}
  effective:
    mustSupport: true
    choices: []
    index: 8
  code:
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: '398192003', system: 'http://snomed.info/sct'}
    index: 4
  bodySite: {short: Not used in this profile, index: 13}
  focus:
    type: Reference
    short: The Index Condition
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-primary-cancer-condition']
    index: 6
  device: {short: Not used in this profile, index: 16}
  valueInteger: {type: integer, choiceOf: value, index: 12}
  subject:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-cancer-patient']
    index: 5
package_version: 4.0.0-ballot
extensions:
  comorbidConditionPresent: {url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-related-condition', min: 0, type: Extension, mustSupport: true, index: 1}
  comorbidConditionAbsent: {url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-related-condition-absent', min: 0, type: Extension, mustSupport: true, index: 2}
class: profile
kind: resource
url: http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbidities
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 4.0.0-ballot