description: From [eRS ASID Description](https://digital.nhs.uk/services/e-referral-service/api/integration-process/security-and-authorisation#accredited-system-identifiers-and-message-sets)\r\n   \r\n   Accredited System Identifier is an identifier used in Spine Directory Service (SDS) to reference an IT system which has been accredited for use in a specific health or care organisation.\r\n   \r\n   The application created within API Management will be bound to an ASID. This is a one-to-one mapping and the ASID is representative of the end-user organisation. If you're working with many end-user organisations you will need multiple ASIDs.
package_name: fhir.r4.nhsengland.programme
derivation: constraint
name: EnglandIdentifierAccreditedSystem
type: Identifier
elements:
  system:
    pattern: {type: uri, value: 'https://fhir.nhs.uk/Id/accredited-system'}
    type: uri
    index: 0
  value: {index: 1}
package_version: 0.2.2-pre-release
class: complex-type
kind: complex-type
url: https://fhir.nhs.uk/England/StructureDefinition/England-Identifier-Accredited-System
base: http://hl7.org/fhir/StructureDefinition/Identifier
version: 0.0.1-current
required: [system, value]