description: The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in).
package_name: ca.on.health.sadie
derivation: constraint
name: phoneExtension
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/contactpoint-extension'}
    index: 1
  value:
    choices: [valueString]
    index: 3
  valueString: {type: string, choiceOf: value, index: 4}
package_version: 1.4.9
extensions: {}
class: extension
kind: complex-type
url: https://health.gov.on.ca/sadie/fhir/StructureDefinition/contactpoint-extension
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.0.1
required: [valueString, value]