arthrodesis, chronic internal derangement of knee, contractures, costochondritis, dermatomyositis, disorder of patella, malunion/ non-union of fracture, myositis, Paget's disease of bone, panniculitis, pathological fracture N0S, polymyalgia rheumatica, psoriatic arthritis (code also S91), Reiter's disease, scleroderma, Sjogren's syndrome, spontaneous rupture tendon, systemic lupus erythematosis