Wiki Medicare denial 64635 but payment allowed for 64636

[AT2728]

I'm scratching my head on this one. We have two instances were Medicare has denied CPT 64635 Destruction RFA due to "information submitted does not support this many/frequency of services". However, for these same claims they have paid the add on code of 64636. I simply do not understand this, I have researched and re-read the related LCD multiple times. Our physician has appropriately documented the justification and has not exceeded the limitations. Any suggestions would be appreciated.
-April

 

[services@altairmedicalbilling.com]

I have the same situation with BCBS. They paid the add on code but not 64635 because it was denied for preauthorization. It may be that.