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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Musculoskeletal System And Connective Tissue 710-739 > Osteopathies, Chondropathies, And Acquired Musculoskeletal Deformities 730-739 > Other Disorders Of Bone And Cartilage 733.* > 2007 ICD-9-CM Diagnosis 733.4 Aseptic necrosis of bone  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 733.4 can be accessed here. 733.4 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 733.* hierarchy Use additional code to identify major osseous defect, if applicable (731.3)