OPERATIONS ON THE EAR (18-20) ICD-9-CM Vol 3 Code range 18-20
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Operations on external ear
Incision of external ear
Diagnostic procedures on external ear
Excision or destruction of lesion of external ear
Other plastic repair of external ear
Reconstructive operations on middle ear
Revision of stapedectomy
Other tympanoplasty
Other operations on middle and inner ear
Incision of mastoid and middle ear
Diagnostic procedures on middle and inner ear
Fenestration of inner ear
Incision, excision, and destruction of inner ear
Other operations on inner and middle ear
Tympanosympathectomy
Revision of mastoidectomy
Repair of oval and round windows
Injection of tympanum
Implantation of electromagnetic hearing device
Implantation or replacement of cochlear prosthetic device, not otherwise specified
Implantation or replacement of cochlear prosthetic device, single channel
Implantation or replacement of cochlear prosthetic device, multiple channel
Other operations on middle and inner ear