Save this useful list to help troubleshoot when you-re dealing with these changes. If you get confused and frustrated sorting through all the lines of edits in the Correct Coding Initiative (CCI) files, refer to this easy-to-decipher chart to know what new code pairs you may separate with a modifier, and what codes carriers will never pay for. Note: The code in the left column (column 1) represents the comprehensive code. The bundled codes are in column 2, and the modifier indicator is in column 3.