QuickEMR has the ability to let you know when a Medicare Patient has exceeded their Cap for the year. You will need to have a 

Fee schedule in QuickEMR and if the Patient already has a balance towards their Medicare Cap set up in QuickEMR for this to function correctly.

From the report you can make changes to the Patients profile so that the proper KX modifiers are used.

In the Patients profile go to Case Info and beneath the Diagnosis box you will find the box seen below. Check the Cap Exceeded box and choose the date they exceeded their Cap. Every note done after that date will have the correct KX modifiers installed.