2007 ICD-9-CM Procedure 25.91 Lingual frenotomy 25.91 is a specific code that can be used to specify a procedure 25.91 contains 8 index entries View the full Volume 3 25.* hierarchy 25.91 excludes: labial frenotomy (27.91) Index entries containing 25.91: Clipping frenulum, frenum lingual (tongue) 25.91 Division frenulum, frenum lingual 25.91 tongue 25.91 Frenotomy lingual 25.91 Glossotomy NEC 25.94 for tongue tie 25.91 Incision (and drainage) tongue NEC 25.94 for tongue tie 25.91 Operation tongue NEC 25.99 tie 25.91 Tongue tie operation 25.91