Radiology Coding Alert

Question: Is 74420 a bilateral procedure? If so, should I report RT and LT?Washington SubscriberAnswer: You should not append modifiers RT (Right side), LT (Left side) or 50 (Bilateral procedure) to 74420 (Urography, retrograde, with or without KUB).According to the Medicare fee schedule, 74420 has a "0" bilateral indicator. This means that "bilateral surgery rules do not apply. Do not use 50 modifier." The fee schedule is online at http://www.cms.hhs.gov/pfslookup/.Tip: Washington Medicare carrier Noridian posted the 2008 fee schedule indicator definitions online at http://www.noridianmedicare.com/p-medb/news/fees/docs/2008/mpfs_2008_indicator_summary.pdf.