2007 ICD-9-CM Procedure 20.99 Other operations on middle and inner ear 20.99 is a specific code that can be used to specify a procedure 20.99 contains 7 index entries View the full Volume 3 20.* hierarchy 20.99 also known as: Repair or removal of cochlear prosthetic device (receiver) (electrode) 20.99 excludes: adjustment (external components) of cochlear prosthetic device (95.49) fitting of hearing aid (95.48) Index entries containing 20.99: Implant, implantation cochlear (electrode) 20.96 prosthetic device (electrode and receiver) 20.96 electrode only 20.99 internal coil only 20.99 Operation ear (external) NEC 18.9 middle or inner NEC 20.99 Removal -- see also Excision implant cochlear prosthetic device 20.99 middle ear NEC 20.99 prosthesis cochlear prosthetic device 20.99 Repair cochlear prosthetic device 20.99 external components only 95.49