description: Sort key values allow laboratories to suggest the sequence of test requests and observations within a single order or test request to organize the display of the patient report by other external systems (e.g., a practitioner’s electronic medical record system).
package_name: ca.on.ehr.r4
derivation: constraint
name: SortKey
type: Extension
elements:
  url:
    pattern: {type: Uri, value: 'http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-sort-key'}
    index: 0
  value:
    choices: [valueString]
    index: 2
  valueString: {type: string, choiceOf: value, index: 3}
package_version: 1.0.0-snapshot2
class: extension
kind: complex-type
url: http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-sort-key
base: http://hl7.org/fhir/StructureDefinition/Extension
version: null