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What CPT codes are billable, and can you explain the logic?

Procedures to be performed: Left Heart Cath with intervention.

1.  Drug-eluting stent angioplasty of the ostial left circumflex in-stent restenosis, using the right femoral arterial access.  Radial access was attempted but was unable to pass wire due to radial artery obstruction-

Findings:

1.  Hemodynamics

AO:  160/78

CORONARY INTERVENTION:

LESION 1: 

Vessel: 90% ostial left circumflex in-stent restenosis-   

Anticoagulation: Heparin 80 units/kg guide catheter: 6 French EBU 3.5 from the right femoral approach.

Guide Wire: Fielder XT wire initially to cross the lesion for predilatation.

Pre-Dilation Balloon: 2.5 mm Abbott trek 15 mm PTCA balloon at up to 20 atm. Following predilatation, the Fielder XT wire was exchanged for a VersaTurn wire Intervention Device: 2.5 mm Abbott Xience Skypoint 12 mm drug-eluting stent delivered at 16 atm. Post Dilation: Stent delivery balloon at 16 atm.

Results: Reduction of initial 90% stenosis to less than 10% residual stenosis with no evidence of dissection, distal embolization or loss of side branch.