Ask Dr. Z

In light of the July 2014 NCCI edit update, we (hospital staff) have been debating whether or not it is appropriate to append a -59 modifier to existing myelography codes when a CT scan of the same area is performed on the same date of service. We routinely perform a full and complete conventional myelogram with a separate report amd then send the patient to CT. Bottom line - can we bill separately for the conventional myelogram, or is it now considered bundled with the CT study performed in the same patient encounter?