2007 ICD-9-CM Procedure 22.52 Sphenoidotomy 22.52 is a specific code that can be used to specify a procedure 22.52 contains 7 index entries View the full Volume 3 22.* hierarchy Index entries containing 22.52: Dilation sphenoid ostia 22.52 Exploration -- see also Incision sinus sphenoid 22.52 sphenoidal sinus 22.52 Removal -- see also Excision foreign body NEC -- see also Incision, by site 98.20 nasal sinus 22.50 sphenoid 22.52 sinus (nasal) 22.50 sphenoid 22.52 Sinusotomy (nasal) 22.50 sphenoid 22.52 Sphenoidotomy 22.52