We did a lumbar laminectomy on a patient for stenosis 724.02. One month later we did a bursa injection 20610 for hip bursitis 726.5. NGS MCR denied saying needed a modifier. However, originally when 20610 was filed they had the 726.5 and 724.02 both tagged to it. Do you think it really needs a modifier or just an appeal letter since the only diagnosis should have been 726.5?