Hi,
We are getting a lot of denials when we bill for multiple units of 88374. We are billing over the MUE of one, but it states to report for each unduplicated multiplex probe stain procedure per specimen. We will bill one unit, and then bill the additional units on another line with a XU modifier. Has anyone appealed these to Medicare? I have appealed even with documentation and nothing. I am getting a little frustrated, we bill a lot of these and appealing is timely...especially when the time spent does nothing. I'd appreciate any insight!
Thanks
ISH Billing
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