BCBS is denying payment on 49568 (mesh implantation). I billed for CPT codes 49560 (incisional hernia repair), 49585 (umbilical hernia repair) with an XS modifier to indicate a different surgical site, and 49568 (mesh). Both hernia procedures were paid, but they won’t pay the mesh code because they say they have bundled it with the hernia that does not allow for separate mesh coding, (the 49585). What modifier would I use to have the insurance not bundle the mesh with the 49585 and appropriately pay it as an add on to the 49560? Thank you!