2007 ICD-9-CM Procedure 22.2 Intranasal antrotomy 22.2 is a specific code that can be used to specify a procedure 22.2 contains 10 index entries View the full Volume 3 22.* hierarchy 22.2 excludes: antrotomy with external approach (22.31-22.39) Index entries containing 22.2: Antrotomy (exploratory) (nasal sinus) 22.2 Caldwell-Luc (maxillary sinus) 22.39 with removal of membrane lining 22.31 intranasal 22.2 with external approach (Caldwell-Luc) 22.39 radical 22.31 maxillary (simple) 22.2 with Caldwell-Luc approach 22.39 with removal of membrane lining 22.31 external (Caldwell-Luc approach) 22.39 with removal of membrane lining 22.31 radical (with removal of membrane lining) 22.31 Operation antrum window (nasal sinus) 22.2 with Caldwell-Luc approach 22.39 Removal -- see also Excision foreign body NEC -- see also Incision, by site 98.20 nasal sinus 22.50 antrum 22.2 with Caldwell-Luc approach 22.39 maxillary 22.2 with Caldwell-Luc approach 22.39 sinus (nasal) 22.50 antrum 22.2 with Caldwell-Luc approach 22.39 maxillary 22.2 with Caldwell-Luc approach 22.39 Sinusotomy (nasal) 22.50 antrum (intranasal) 22.2 with external approach (Caldwell-Luc) 22.39 radical (with removal of membrane lining) 22.31 maxillary (intranasal) 22.2 external approach (Caldwell-Luc) 22.39 radical (with removal of membrane lining) 22.31