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Coordination of Benefits Agreement (COBA) Companion Guide for Health Insurance Portability and Accountability Act (HIPAA) 837 Institutional and Professional Medicare Coordination of Benefits Version 5010 (COB)/Crossover Claim Transactions

Guidance for changes to the COBA HIPAA 5010A1 and A2 COB Companion Guide.

Download the Guidance Document

Final

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

Issue Date: July 26, 2017

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