The Clinical Data Exchange (CDEx) Attachment Submission API allows providers, provider organizations, and trading partners to submit supporting clinical documentation for prior authorization or claim-review requests.
Parameters
Parameter
Description
parameter >> name
This identifies the business parameter being sent. Select a value, supported values include, TrackingId, AttachTo, RequestId, PayerId, OrganizationId, ProviderId, MemberId, ServiceDate, Attachment (required).
part >> name
This is one component of the Attachment; describes something about the attachment. Supported values for the attachment part name, LineItem, Code, Content (optional).
resource
The actual clinical document payload.
valueCodeableConcept
Describe the type of attachment/document being submitted/attachment.
valueString
The attachment part name, for example, if it is LineItem, '1'.
valueCode
Value used when name is AttachTo. Allowed values are claim and prior-auth.
valueDate
A single ServiceDate, format: YYYY-MM-DD.
valueIdentifier
Used to represent business identifiers such as Tracking ID, Payer ID, Organization ID, Provider ID (NPI), and Member ID. It contains both the identifier value and the system that issued or defines the identifier.
valuePeriod
ServiceDate range.
valueString
Value used when name is RequestId. Example payer request identifier: PA-REQUEST-12345.
resourceType
Fixed value, Parameters.
Headers
x-mock-scenario
Used in sandbox environments to return predefined mock responses instead of real backend processing.
x-optum-trace-id
Unique identifier used to trace and correlate requests across Optum systems for troubleshooting and support.
