Medicare Claims Processing Manual (Pub. 100-04), Ch. 22 § 80.2
Uniform Use of CARCs and RARCs Rule
80.2 - Uniform Use of CARCs and RARCs Rule
(Rev. 3288, Issued: 07-02-15, Effective: 08-03-15, Implementation: 08-03-15)
The CAQH CORE mandated operating rules require the usage of a standardized CARC
and RARC combinations when used on the ASC X12 835 transactions. These
combinations are maintained in a list updated three times a year by CAQH CORE.
The complete CARC/RARC code combination list is available at:
http://www.caqh.org/CORECodeCombinations.php
The MACs may submit to CMS a request for modification to an existing code
combination or a request to create a new code combination to the CAQH CORE Code
Combination List. MACs may also request modifications, additions, or deletions of
individual CARC and RARC codes to CMS. Requests are to be submitted to:
Remittance_Advice@CMS.HHS.GOV.
All requests must include business justifications and contain, when available, reference to
CMS instruction for the requested action.