1. H91 Other and unspecified hearing loss


    • abnormal auditory perception (H93.2-)
    • hearing loss as classified in H90.-
    • impacted cerumen (H61.2-)
    • noise-induced hearing loss (H83.3-)
    • psychogenic deafness (F44.6)
    • transient ischemic deafness (H93.01-)
    1. H91.0 Ototoxic hearing loss

      1. H91.01 Ototoxic hearing loss, right ear

      2. H91.02 Ototoxic hearing loss, left ear

      3. H91.03 Ototoxic hearing loss, bilateral

      4. H91.09 Ototoxic hearing loss, unspecified ear

    2. H91.1 Presbycusis

      Inclusion term(s):

      • Presbyacusia
      1. H91.10 Presbycusis, unspecified ear

      2. H91.11 Presbycusis, right ear

      3. H91.12 Presbycusis, left ear

      4. H91.13 Presbycusis, bilateral

    3. H91.2 Sudden idiopathic hearing loss

      Inclusion term(s):

      • Sudden hearing loss NOS
      1. H91.20 Sudden idiopathic hearing loss, unspecified ear

      2. H91.21 Sudden idiopathic hearing loss, right ear

      3. H91.22 Sudden idiopathic hearing loss, left ear

      4. H91.23 Sudden idiopathic hearing loss, bilateral

    4. H91.3 Deaf nonspeaking, not elsewhere classified

    5. H91.8 Other specified hearing loss

      1. H91.8X Other specified hearing loss

        • H91.8X1 Other specified hearing loss, right ear
        • H91.8X2 Other specified hearing loss, left ear
        • H91.8X3 Other specified hearing loss, bilateral
        • H91.8X9 Other specified hearing loss, unspecified ear
    6. H91.9 Unspecified hearing loss

      Inclusion term(s):

      • Deafness NOS
      • High frequency deafness
      • Low frequency deafness
      1. H91.90 Unspecified hearing loss, unspecified ear

      2. H91.91 Unspecified hearing loss, right ear

      3. H91.92 Unspecified hearing loss, left ear

      4. H91.93 Unspecified hearing loss, 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.