What modifiers are being used for bundling issues on 45385 & 45380(separate areas/polyps) and now on 43249 & 43239. These are all bundled but modifiers allowed however they all also have multiple procedure/endoscopy indicator of 3. We have always used a 59 on the 45385 & 45380 but now it is denying as invalid modifier combo. I can’t figure out if they are wanting the X modifiers or if they are wanting the 51. ( I am trying to determine for ALL payers, Medicare and Commercial).

Any thoughts on this would be appreciated.