2007 ICD-9-CM Procedure 22.11 Closed [endoscopic] [needle] biopsy of nasal sinus 22.11 is a specific code that can be used to specify a procedure 22.11 contains 4 index entries View the full Volume 3 22.* hierarchy Index entries containing 22.11: Biopsy nose, nasal 21.22 sinus 22.11 closed (endoscopic) (needle) 22.11 sinus, nasal 22.11 closed (endoscopic) (needle) 22.11 open 22.12