description: This identifier profile defines an Australian Company Number (ACN)[[1]](http://asic.gov.au/for-business/registering-a-company/steps-to-register-a-company/australian-company-numbers/australian-company-number-digit-check) in an Australian context.
package_name: hl7.fhir.au.base
derivation: constraint
name: AUAustralianCompanyNumber
type: Identifier
elements:
  type:
    binding: {strength: extensible, valueSet: 'http://terminology.hl7.org.au/ValueSet/v2-0203-extended'}
    index: 0
  system:
    pattern: {type: Uri, value: 'http://hl7.org.au/id/acn'}
    index: 1
  value: {short: ACN, index: 2}
package_version: 4.1.0-ballot
class: complex-type
kind: complex-type
url: http://hl7.org.au/fhir/StructureDefinition/au-australiancompanynumber
base: http://hl7.org/fhir/StructureDefinition/Identifier
version: 4.1.0-ballot
required: [value, type, system]