{description: 'This [operation](http://hl7.org/fhir/operations.html) is used to submit attachments (additional documentation) for claims or prior authorization. This operation accepts the clinical/administrative attachments and the necessary information needed to associate them to the claim or prior authorization and returns a transaction layer HTTP response.  The operation may be invoked *before, at the same time as, or after* the claim or pre-authorization has been supplied to the Payer.  This operation can be used by any HTTP endpoint, not just FHIR RESTful servers.\n\nThe input parameters are:\n1. One or more attachments as FHIR Resources\n    - Optionally, one or more unique line item numbers associated with the attachment\n    - Optionally, the code, free text, or search string for information that was requested\n1. Data elements for the association to the claim/prior authorization\n    - A unique identifier that ties the attachment(s) back to the claim or prior authorization. (referred to as the \"re-association tracking control numbers\")*\n    - What are the attachments for:\n      - Claims\n      - Prior Authorizations\n    - Optionally, a unique payer identifier\n    - A unique organization/location identifier (e.g., NPI)\n    - A unique provider identifier (e.g., NPI)\n    - A unique Patient member identifier\n    - A Date of Service\n    - A Flag indicating whether the operation is the last attachment submission for the claim or prior authorization.\n\nThere are no output parameters.', package_name: hl7.fhir.us.davinci, name: SubmitAttachment, type: 'false', package_version: cdex-2.0.0-ballot, class: operation, kind: operation, url: 'http://hl7.org/fhir/us/davinci-cdex/OperationDefinition/submit-attachment', version: 2.0.0-ballot}