Re-determination Requests for the Addition of the KX Modifier
When submitting a Redetermination Request for the addition of the KX modifier to a claim, the necessary medical documentation to support the addition of the KX modifier must be provided.
Redetermination Requests received without supporting medical documentation must be developed, which slows the processing of your Redetermination Request.
In addition, if the requested medical documentation is not received, the claim will remain denied.