description: General structure for capturing comorbid conditions with respect to a primary ('index') condition. The specific set of comorbidities of interest in a given context are defined by slicing the components array. The same general approach can be applied to any comorbidity category checklist.
package_name: hl7.fhir.us.mcode.r4b
derivation: constraint
name: ComorbiditiesParent
abstract: true
type: Observation
elements:
  subject:
    type: Reference
    refers: ['http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-cancer-patient']
    index: 0
  focus:
    type: Reference
    short: The Index Condition
    refers: ['http://hl7.org/fhir/StructureDefinition/Condition']
    index: 1
  bodySite: {short: Not used in this profile, index: 2}
  specimen: {short: Not used in this profile, index: 3}
  device: {short: Not used in this profile, index: 4}
  component:
    index: 5
    extensions:
      conditionCode: {url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbid-condition-code', min: 0, type: Extension, index: 7}
      conditionReference: {url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbid-condition-reference', min: 0, type: Extension, index: 8}
    elements:
      extension:
        short: Extensions to capture specific conditions that fall into the given category.
        index: 6
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: null
          slices:
            conditionCode:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbid-condition-code', index: 7}
              min: 0
            conditionReference:
              match: {url: null}
              schema: {type: Extension, url: 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbid-condition-reference', index: 8}
              min: 0
      modifierExtension: {index: 9}
      code: {short: Code representing the comorbidity category, index: 10}
      value:
        choices: [valueCodeableConcept]
        index: 12
      valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 13}
package_version: 2.1.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-comorbidities-parent
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 2.1.0