A new NCCI edit was published 10/01/19 against codes 36478 with 36471 stating "Misuse of column two code with column one code". Does anyone have any idea what exactly constitutes misuse? We have provider who do perform these services in the same session and I want to be sure they are not billing against this edit. For instance- is misuse defined as performed in the same surgical field? Same vein? Same leg? Other? Does anyone have insight on this edit?