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Modifications to the National Coordination of Benefits Agreement (COBA) Claims Crossover Process

Through this instruction, CMS is directing the Common Working File (CWF) maintainer to discontinue the practice of sending Beneficiary Other Insurance (BOI) auxiliary file data to the Next Generation Desktop (NGD) and the Medicare Beneficiary Database (MBD) only for COBA ID ranges 79000-79999 and for 89000-89999. Additionally, through this instruction, CMS is modifying one aspect of the CWF logic used as part of Recovery Audit Contractor (RAC)-initiated COBA crossover claims process, associated with COBA ID range 88000--88999.

Download the Guidance Document

Final

Issued by: Centers for Medicare & Medicaid Services (CMS)

Issue Date: May 02, 2024

DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.