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diagnostic CTA one day and 93458 & C9600 on day two

Date: Dec 3, 2021

Question:

For a case where a cardiac CTA finds an RCA lesion, then, on another day, they place a drug-eluting stent in the RCA (C9600-RC) and do a left heart cath with coronary angio, I know I would drop the 93458, as it's bundled. What I am wondering is would it be appropriate to only code the LHC (93452) with C9600, since that code is not bundled, or is that inappropriate and why? Why did NCCI bundle the angios but not bundle the LHC, RHC, and R&LHC codes into the PCI codes? Should I be adding 93452 when a prior LHC wasn't done, only a CTA?

Question ID : 16260
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