2007 ICD-9-CM Procedure 85.47 Unilateral extended radical mastectomy Radical mastectomy with removal of the ipsilateral half of the sternum and a portion of ribs two through five with the underlying pleura and the internal mammary lymph nodes. 85.47 is a specific code that can be used to specify a procedure 85.47 contains 4 index entries View the full Volume 3 85.* hierarchy 85.47 also known as: Excision of breast, muscles, and lymph nodes [axillary, clavicular, supraclavicular, internal mammary, and mediastinal] Extended radical mastectomy NOS Index entries containing 85.47: Mastectomy (complete) (prophylactic) (simple) (unilateral) 85.41 extended radical (Urban) (unilateral) 85.47 bilateral 85.48 radical (Halsted) (Meyer) (unilateral) 85.45 extended (Urban) (unilateral) 85.47 bilateral 85.48 Operation Urban (mastectomy) (unilateral) 85.47 bilateral 85.48 Urban operation (mastectomy) (unilateral) 85.47 bilateral 85.48