00-99 CLASSIFICATION OF PROCEDURES
18-20 4. OPERATIONS ON THE EAR
20 Other operations on middle and inner ear


20.0 Myringotomy

20.1 Removal of tympanostomy tube
0 + Alphabetic Index entries

20.2 Incision of mastoid and middle ear

20.3 Diagnostic procedures on middle and inner ear

20.4 Mastoidectomy
0 + Note
0 + Excludes

20.5 Other excision of middle ear
0 + Excludes

20.6 Fenestration of inner ear

20.7 Incision, excision, and destruction of inner ear

20.8 Operations on Eustachian tube
0 + Includes
0 + Alphabetic Index entries

20.9 Other operations on inner and middle ear