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Lt heart cath done for eval and intervention, which code to use 93458, 9345

Date: Jun 18, 2020

Question:

Left heart catherization done for further evaluation of coronary anatomy and possible intervention. Catheter engaged in left and right coronary system, crossed aortic valve, left ventricular pressures obtained, left ventriculogram, and attempt to engage left internal mammary artery but unable. Would this be coded with 93459 even though unable to engage the mammary artery but that was the intention or would it be coded with 93458?

Question ID : 14113
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