This is the CMS Coordination of Benefits training module brought to you by Relias Learning. This Coordination of Benefits training module explains how the coordination of benefits works when people have Medicare and certain other types of health coverage. The material is designed for information givers/trainers who are familiar with the Medicare program and would like to have prepared information for their presentations. Module 5, Coordination of Benefits, explains the rules that govern the payers’ responsibility when people have Medicare and certain other types of health and/or prescription drug coverage. This training module was developed and approved by the Centers for Medicare & Medicaid Services (CMS), the federal agency that administers Medicare, Medicaid, the Children’s Health Insurance Program (CHIP), and the Federally-facilitated Health Insurance Marketplace. This module is designed for presentation to trainers and other information givers. It can be easily adapted for presentations to groups of beneficiaries.