2007 ICD-9-CM Procedure 22.12 Open biopsy of nasal sinus 22.12 is a specific code that can be used to specify a procedure 22.12 contains 2 index entries View the full Volume 3 22.* hierarchy Index entries containing 22.12: Biopsy nose, nasal 21.22 open 22.12 sinus, nasal 22.11 open 22.12