1. H80 Otosclerosis

    1. H80.0 Otosclerosis involving oval window, nonobliterative

      1. H80.00 Otosclerosis involving oval window, nonobliterative, unspecified ear

      2. H80.01 Otosclerosis involving oval window, nonobliterative, right ear

      3. H80.02 Otosclerosis involving oval window, nonobliterative, left ear

      4. H80.03 Otosclerosis involving oval window, nonobliterative, bilateral

    2. H80.1 Otosclerosis involving oval window, obliterative

      1. H80.10 Otosclerosis involving oval window, obliterative, unspecified ear

      2. H80.11 Otosclerosis involving oval window, obliterative, right ear

      3. H80.12 Otosclerosis involving oval window, obliterative, left ear

      4. H80.13 Otosclerosis involving oval window, obliterative, bilateral

    3. H80.2 Cochlear otosclerosis

      Inclusion term(s):

      • Otosclerosis involving otic capsule
      • Otosclerosis involving round window
      1. H80.20 Cochlear otosclerosis, unspecified ear

      2. H80.21 Cochlear otosclerosis, right ear

      3. H80.22 Cochlear otosclerosis, left ear

      4. H80.23 Cochlear otosclerosis, bilateral

    4. H80.8 Other otosclerosis

      1. H80.80 Other otosclerosis, unspecified ear

      2. H80.81 Other otosclerosis, right ear

      3. H80.82 Other otosclerosis, left ear

      4. H80.83 Other otosclerosis, bilateral

    5. H80.9 Unspecified otosclerosis

      1. H80.90 Unspecified otosclerosis, unspecified ear

      2. H80.91 Unspecified otosclerosis, right ear

      3. H80.92 Unspecified otosclerosis, left ear

      4. H80.93 Unspecified otosclerosis, bilateral

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.