Modifications to the National Coordination of Benefits Agreement (COBA) Crossover Process
The purpose of this Change Request (CR) is to discontinue the transmission of the COBA Claims Accept and Reject File (also known as the “Claims Response File”), a process that was activated at the beginning of the consolidation of the Medicare claims crossover process in 2004.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: April 17, 2025
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