Question: Codify Member Answer: If the cardiologist provided the services described by 93458 (Catheter placement in coronary artery[s] for coronary angiography, including intraprocedural injection[s] for coronary angiography, imaging supervision and interpretation; with left heart catheterization including intraprocedural injection[s] for left ventriculography, when performed), then you may use that code. Check the other LHC codes to be sure there isn't a better fit. As you indicate, you should append modifier 26 (Professional component) when the physician provides only the professional component.