2007 ICD-9-CM Procedure 84.51 Insertion of interbody spinal fusion device 84.51 is a specific code that can be used to specify a procedure 84.51 contains 6 index entries View the full Volume 3 84.* hierarchy 84.51 also known as: Insertion of:cages (carbon, ceramic, metal, plastic or titanium) Code also refusion of spine (81.30 - 81.39) Index entries containing 84.51: Implant, implantation interbody spinal fusion device 84.51 Insertion interbody spinal fusion device 84.51 spacer (cement)(joint) 84.56 spine 84.51 spine cage (BAK) 84.51 interbody spinal fusion device 84.51 spacer 84.51