I would appreciate suggestions on how to best code an office visit for a patient who came in to "discuss renewal of prosthesis." The chart states that patient's current prosthesis is worn and in need of replacement. Provider is referring patient to PT for a functional assessment to replace the Left Tibia prosthesis. I am having difficulty in finding a diagnosis code that I could recommend to my provider, he coded S88.119A (Complete traumatic amputation at level between knee and ankle, unspecified lower leg, initial), I know this to be incorrectly used in this situation.