IHN-CCO Now Accepting COBA Claims September 6, 2018 Effectively immediately, InterCommunity Health Network CCO is accepting Coordination of Benefits Agreement (COBA) claims from the Centers for Medicare & Medicaid Services (CMS). COBA helps standardize the way that eligibility and Medicare-claims payment information within a claims crossover context is exchanged. For more information about COBA claims, visit the CMS website.