2007 ICD-9-CM Procedure 37.65 Implant of external, pulsatile heart assist system 37.65 is a specific code that can be used to specify a procedure 37.65 contains 1 index entry View the full Volume 3 37.* hierarchy Note : Device (outside the body but connected to heart) with external circulation and pump. 37.65 excludes: implant of pulsation balloon (37.61) implantation of total replacement heart system (37.52) insertion of percutaneous external heart assist device (37.68) Index entries containing 37.65: Implant, implantation heart assist system NEC 37.62 external 37.65