2007 ICD-9-CM Procedure 21.04 Control of epistaxis by ligation of ethmoidal arteries 21.04 is a specific code that can be used to specify a procedure 21.04 contains 3 index entries View the full Volume 3 21.* hierarchy Index entries containing 21.04: Control epistaxis 21.00 by ligation of artery 21.09 ethmoidal 21.04 Ligation artery 38.80 ethmoidal 21.04 ethmoidal artery 21.04