Find out what drugs you can bill. Since ASC payments and covered procedures have changed through the years, make sure old habits arent stopping you from collecting allowed pay. You can get Medicares full list of allowable ASC procedures on its Web site (www.cms.hhs.gov/ASCPayment). Make sure to check eligible procedure according to the year that the physician performed the service. Opportunity: Allowed procedures will now include x-rays performed in ASC setting, says Catherine Bowie, CPC, surgical and ASC coder for Central Maine Orthopaedics, PA in Auburn. Also, you can bill certain drugs (such as Zofran [J2405], Adenosine [J0150], and Linezolid [J2020]).