R13833MSP: Creating Additional Medicare Secondary Payer (MSP) Error Codes to Better Identify Incoming MSP Claims that Conflict with MSP Records Found on the Common Working File (CWF)

This document provides contact information and resources for insurance agents and brokers working with the Health Insurance Marketplace, but does not contain the Medicare Secondary Payer (MSP) error codes policy mentioned in the title. The content appears to be a reference guide for marketplace help desks and websites rather than billing policy changes.