2006 ICD-9-CM Volume 1 Diagnosis Codes > Diseases Of The Musculoskeletal System And Connective Tissue 710-739 > Arthropathies And Related Disorders 710-719 > 712 Crystal arthropathies 713 Arthropathy associated with other disorders classified elsewhere 714 Rheumatoid arthritis and other inflammatory polyarthropathies 715 Osteoarthrosis and allied disorders 716 Other and unspecified arthropathies 717 Internal derangement of knee 718 Other derangement of joint 719 Other and unspecified disorders of joint 710 Diffuse diseases of connective tissue 711 Arthropathy associated with infections