The document provides guidance on using modifier 59 to report procedures that are not normally bundled but are appropriate to bill separately in certain circumstances, such as when they are performed at different session, for a different diagnosis, or require a separate incision. It outlines the rules for using modifier 59 and provides examples of its proper use in orthopedic, ob-gyn, and other clinical scenarios. Overall, the document aims to help providers understand when and how to appropriately "break bundles" using modifier 59.
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