2007 ICD-9-CM Procedure 37.63 Replacement and repair of heart assist system 37.63 is a specific code that can be used to specify a procedure 37.63 contains 3 index entries View the full Volume 3 37.* hierarchy 37.63 also known as: Replacement of parts of an existing ventricular assist device (VAD) 37.63 excludes: replacement or repair of other implantable component of total replacement heart system [artificial heart] Index entries containing 37.63: Removal -- see also Excision heart assist system with replacement 37.63 pump assist device, heart 37.64 with replacement 37.63 Repair heart 37.49 assist system 37.63