2007 ICD-9-CM Procedure 85.91 Aspiration of breast 85.91 is a specific code that can be used to specify a procedure 85.91 contains 2 index entries View the full Volume 3 85.* hierarchy 85.91 excludes: percutaneous biopsy of breast (85.11) Index entries containing 85.91: Aspiration breast 85.91 Evacuation cyst -- see also Excision, lesion, by site breast 85.91