Does anyone bill for the Bundle of HIS when doing the pacemaker implantation? If so, how do you bill for this service and do you get reimbursed by your payer?

We had billed this service using an unlisted procedure code 33999,(in addition to the pacemaker code 33206) per Medtronic as there isn’t a procedure code specific for this service and were denied by Medicare for the 33999 as not separately payable. The claim was appealed with records. Still denied.
Thank you in advance for any information.