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Modifier XU vs XP with diagnostic and intervention by 2 physicians

Date: Feb 27, 2019

Question:

If, during one operative episode, one physician performs a diagnostic heart catheterization and coronary angiogram (i.e., 93458), and then calls in an interventionist to perform an intervention (i.e., drug-eluting stent), what would be most appropriate modifier on the diagnostic? Modifier -XU appears to be most appropriate to identify a true diagnostic study. But would modifier -XP be more descriptive?

Question ID : 12138
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