2007 ICD-9-CM Volume 3 Procedure Codes 00-00 Procedures And Interventions, Not Elsewhere Classified 01-05 Operations On The Nervous System 06-07 Operations On The Endocrine System 08-16 Operations On The Eye 18-20 Operations On The Ear 21-29 Operations On The Nose, Mouth, And Pharynx 30-34 Operations On The Respiratory System 35-39 Operations On The Cardiovascular System 40-41 Operations On The Hemic And Lymphatic System 42-54 Operations On The Digestive System 55-59 Operations On The Urinary System 60-64 Operations On The Male Genital Organs 65-71 Operations On The Female Genital Organs 72-75 Obstetrical Procedures 76-84 Operations On The Musculoskeletal System 85-86 Operations On The Integumentary System 87-99 Miscellaneous Diagnostic And Therapeutic Procedures