On August 11, 2008, CMS published a notice correcting proposed drug administration ambulatory payment classifications (APCs) included in its July 18, 2008 proposed 2009 Medicare hospital outpatient prospective payment system (HOPPS) rule.  In addition, on August 1, CMS published a notice making a series of technical changes to its July 7, 2008 proposed 2009 Medicare physician fee schedule rule.