The new cervicocerebral imaging codes (CPT 36222-36228), which bundle catheterization and diagnostic imaging services, were developed to be reported with modifier 50 if performed bilaterally. However, the 2013 Medicare physician fee schedule lists a bilateral indicator of "0" for each of these codes. Therefore, the Centers for Medicare and Medicaid Services (CMS) will deny payment if modifier -50 is appended. SVS identified and successfully appealed this issue with CMS. CMS then corrected this error in its April Update to the regional carriers. The bilateral indicator is now listed as "1" which means 150 percent payment adjustment if billed with modifier 50. This change is effective retroactively to Jan. 1, 2013. On page eight of the 10 page CMS transmittal # 2677 it is clear that this has been fixed. This CMS PDF document can be used in the appeal process.