2007 ICD-9-CM Procedure 28.4 Excision of tonsil tag 28.4 is a specific code that can be used to specify a procedure 28.4 contains 2 index entries View the full Volume 3 28.* hierarchy Index entries containing 28.4: Excision tonsil 28.2 tag 28.4 Removal -- see also Excision tonsil tag 28.4