OliviaPrice
Networker
When performing a heart cath In 2010 we could also bill 93539 for viewing a native IMA as a potential graft vessel because CPT specified "whether native or used for bypass". In 2011 CPT code 93459 does not include the term "native". Should procedure 93459 be used when a left heart cath is performed and the native IMA is injected to asses patency as a potential graft vessel?