Jun 06 2019 The June 2019 updated version of the CORE-required Code Combinations for the CORE-defined Business Scenarios (i.e. CORE Code Combinations) is now available for use with the CAQH CORE 360: Uniform Use of CARCs and RARCs Rule.The CORE Code Combinations v3.5.3 June 2019 includes Compliance-based Adjustments as a result of code list updates published March 1, 2019. A marked-up version of the CORE Code Combinations, showing the adjustments between v3.5.2 and v3.5.3, is available. The change log of the CORE Code Combinations provides a list of all adjustments made. The CAQH CORE 360 Rule enables more uniform use of the Claim Adjustment Reason Codes (CARCs) and Remittance Advice Remark Codes (RARCs). Visit the Ongoing Maintenance of the CORE Code Combinations for the CAQH CORE 360 Rule webpage for tools and information to comply with the CAQH CORE 360 Rule and the ongoing CORE Code Combinations Maintenance Process.