Local identifier using ODS Code as the organisation

A local identifier may be used where no suitable national or established identifier system exists.

Where a local identifier is assigned by an organisation with an ODS Code, the ODS Code can be used to identify the organisation responsible for assigning the identifier.

The local identifier and the organisation responsible for assigning it should be distinguishable.

When to use

This pattern SHOULD be used where:

• an identifier is locally assigned by an organisation; and
• the organisation responsible for assigning the identifier can be identified using an ODS Code.

The local identifier should not be assumed to be globally unique. The organisation that assigned the identifier provides the context required to interpret the identifier.

Identifier system

Identifier.system should identify the namespace in which the local identifier is unique.

Where the agreed identifier pattern uses an ODS Code to qualify the organisation responsible for the local identifier, the appropriate ODS identifier system should be used in accordance with the relevant profile guidance.

Identifier value

Identifier.value contains the local identifier assigned by the organisation.

Example

{
  "identifier": [
    {
      "system": "https://example.nhs.uk/identifiers/local",
      "value": "123456789",
      "assigner": {
        "identifier": {
          "system": "https://fhir.nhs.uk/Id/ods-organization-code",
          "value": "RJC"
        }
      }
    }
  ]
}