2007 ICD-9-CM Procedure 85.42 Bilateral simple mastectomy 85.42 is a specific code that can be used to specify a procedure 85.42 contains 1 index entry View the full Volume 3 85.* hierarchy 85.42 also known as: Bilateral complete mastectomy Index entries containing 85.42: Mastectomy (complete) (prophylactic) (simple) (unilateral) 85.41 bilateral 85.42