ICD-9-CM Procedure 28 Operations on tonsils and adenoids 28 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 28.0 Incision and drainage of tonsil and peritonsillar structures 28.0 is a specific code that can be used to specify a procedure 28.0 contains 12 index entries ICD-9-CM Procedure 28.1 Diagnostic procedures on tonsils and adenoids 28.1 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 28.11 Biopsy of tonsils and adenoids 28.11 is a specific code that can be used to specify a procedure 28.11 contains 2 index entries ICD-9-CM Procedure 28.19 Other diagnostic procedures on tonsils and adenoids 28.19 is a specific code that can be used to specify a procedure 28.19 contains 2 index entries ICD-9-CM Procedure 28.2 Tonsillectomy without adenoidectomy Surgical removal of a tonsil or tonsils. (Dorland, 28th ed) 28.2 is a specific code that can be used to specify a procedure 28.2 contains 4 index entries ICD-9-CM Procedure 28.3 Tonsillectomy with adenoidectomy 28.3 is a specific code that can be used to specify a procedure 28.3 contains 4 index entries 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 ICD-9-CM Procedure 28.5 Excision of lingual tonsil 28.5 is a specific code that can be used to specify a procedure 28.5 contains 2 index entries ICD-9-CM Procedure 28.6 Adenoidectomy without tonsillectomy Excision of the adenoids. (Dorland, 28th ed) 28.6 is a specific code that can be used to specify a procedure 28.6 contains 4 index entries ICD-9-CM Procedure 28.7 Control of hemorrhage after tonsillectomy and adenoidectomy 28.7 is a specific code that can be used to specify a procedure 28.7 contains 7 index entries ICD-9-CM Procedure 28.9 Other operations on tonsils and adenoids 28.9 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 28.91 Removal of foreign body from tonsil and adenoid by incision 28.91 is a specific code that can be used to specify a procedure 28.91 contains 2 index entries ICD-9-CM Procedure 28.92 Excision of lesion of tonsil and adenoid 28.92 is a specific code that can be used to specify a procedure 28.92 contains 2 index entries ICD-9-CM Procedure 28.99 Other 28.99 is a specific code that can be used to specify a procedure 28.99 contains 2 index entries