2007 ICD-9-CM Procedure 85.41 Unilateral simple mastectomy (mas-TEK-toe-mee) Removal of the breast. Removal of only the breast tissue and nipple and a small portion of the overlying skin. 85.41 is a specific code that can be used to specify a procedure 85.41 contains 2 index entries View the full Volume 3 85.* hierarchy 85.41 also known as: Mastectomy: NOS complete Index entries containing 85.41: Excision breast -- see also Mastectomy 85.41 aberrant tissue 85.24 accessory 85.24 ectopic 85.24 nipple 85.25 accessory 85.24 segmental 85.23 supernumerary 85.24 wedge 85.21 Mastectomy (complete) (prophylactic) (simple) (unilateral) 85.41 with excision of regional lymph nodes 85.43 bilateral 85.44 preservation of skin and nipple 85.34 with synchronous implant 85.33 bilateral 85.36 with synchronous implant 85.35 bilateral 85.42 extended radical (Urban) (unilateral) 85.47 bilateral 85.48 simple (with regional lymphadenectomy) (unilateral) 85.43 bilateral 85.44 modified radical (unilateral) 85.43 bilateral 85.44 partial 85.23 radical (Halsted) (Meyer) (unilateral) 85.45 bilateral 85.46 extended (Urban) (unilateral) 85.47 bilateral 85.48 modified (unilateral) 85.43 bilateral 85.44 subcutaneous 85.34 with synchronous implant 85.33 bilateral 85.36 with synchronous implant 85.35 subtotal 85.23