New Modifier CS - Effective Date April 10, 2010

Posted February 03, 2011

Modifier "CS" is a new modifier that was created to identify items or services related to the treatment of illnesses, injuries, or conditions caused or exacerbated, directly or indirectly, by the 2010 oil spill in the Gulf of Mexico. As noted in Transmittal 2021 (CR 7087), contractors will accept modifier CS on all claims for such items or services for dates of service on or after April 10, 2010. The Calendar Year (CY) 2011 Healthcare Common Procedure Codes System (HCPCS) file erroneously listed modifier CS with an effective date of January 01, 2011.

If you have questions, please contact the PDAC Contact Center at 877-735-1326 during the hours of 8:30 a.m. to 4:00 p.m. CT, Monday through Friday, or e-mail the PDAC by completing the DME PDAC Contact Form located on the PDAC web site:


            Last Updated Wed, 01 Aug 2018 12:29:01 +0000