2007 ICD-9-CM Procedure 81.5 Joint replacement of lower extremity 81.5 is a non-specific code that should not be used to specify a procedure View the full Volume 3 81.* hierarchy 81.5 includes: arthroplasty of lower extremity with: external traction or fixation graft of bone (chips) or cartilage internal fixation device or prosthesis removal of cement spacer