2007 ICD-9-CM Procedure 37.7 Insertion, revision, replacement and removal of leads; insertion of temporary pacemaker system; or revision of cardiac device pocket 37.7 is a non-specific code that should not be used to specify a procedure View the full Volume 3 37.* hierarchy Code also any insertion and replacement of pacemaker device (37.80-37.87) 37.7 excludes: implantation or replacement of transvenous lead [electrode] into left ventricular cardiac venous system (00.52)