As of January 1 2012, CMS raised the value of lumbar transforaminal injection code (64483) from 1.75 RVUs to 1.90 RVUs; after ISIS submitted a comment letter to CMS, regarding the inappropriateness of the original decision. As a result of the comment letter, ISIS was invited by CMS to participate in the refinement panel which voted on the value that CMS should adopt. To view the comment letter click here. ISIS would like to thank ASA, AAPMR and ASNR who also submitted comments to CMS in support of raising the value for this code.