2007 ICD-9-CM Procedure 21.22 Biopsy of nose 21.22 is a specific code that can be used to specify a procedure 21.22 contains 1 index entry View the full Volume 3 21.* hierarchy Index entries containing 21.22: Biopsy nose, nasal 21.22 sinus 22.11 closed (endoscopic) (needle) 22.11 open 22.12