2007 ICD-9-CM Procedure 22.51 Ethmoidotomy 22.51 is a specific code that can be used to specify a procedure 22.51 contains 6 index entries View the full Volume 3 22.* hierarchy Index entries containing 22.51: Ethmoidotomy 22.51 Exploration -- see also Incision ethmoid sinus 22.51 sinus ethmoid 22.51 Removal -- see also Excision foreign body NEC -- see also Incision, by site 98.20 nasal sinus 22.50 ethmoid 22.51 sinus (nasal) 22.50 ethmoid 22.51 Sinusotomy (nasal) 22.50 ethmoid 22.51