ICD-9-CM Vol. 3 Procedure Codes

4. OPERATIONS ON THE EAR (18-20)

section notes

20 Other operations on middle and inner ear

section notes
20.01‑20.09   20.0 Myringotomy
20.21‑20.23   20.2 Incision of mastoid and middle ear
20.1   Tympanostomy tube remove
20.8   Eustachian tube ops
20.31‑20.39   20.3 Diagnostic procedures on middle and inner ear
20.41‑20.49   20.4 Mastoidectomy
20.51‑20.59   20.5 Other excision of middle ear
20.61‑20.62   20.6 Fenestration of inner ear
20.71‑20.79   20.7 Incision, excision, and destruction of inner ear
20.91‑20.99   20.9 Other operations on inner and middle ear
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