All ICD10 Codes
Chapter 8

H60–H95: Diseases of the Ear and Mastoid Process

Diseases of the Ear and Mastoid Process diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
PrevNext
  • H69.93—

    Unspecified Eustachian tube disorder, bilateral

  • H70—

    Mastoiditis and related conditions

  • H70.0—

    Acute mastoiditis

  • H70.00—

    Acute mastoiditis without complications

  • H70.001—

    Acute mastoiditis without complications, right ear

  • H70.002—

    Acute mastoiditis without complications, left ear

  • H70.003—

    Acute mastoiditis without complications, bilateral

  • H70.009—

    Acute mastoiditis without complications, unspecified ear

  • H70.01—

    Subperiosteal abscess of mastoid

  • H70.011—

    Subperiosteal abscess of mastoid, right ear

  • H70.012—

    Subperiosteal abscess of mastoid, left ear

  • H70.013—

    Subperiosteal abscess of mastoid, bilateral

  • H70.019—

    Subperiosteal abscess of mastoid, unspecified ear

  • H70.09—

    Acute mastoiditis with other complications

  • H70.091—

    Acute mastoiditis with other complications, right ear

  • H70.092—

    Acute mastoiditis with other complications, left ear

  • H70.093—

    Acute mastoiditis with other complications, bilateral

  • H70.099—

    Acute mastoiditis with other complications, unspecified ear

  • H70.1—

    Chronic mastoiditis

  • H70.10—

    Chronic mastoiditis, unspecified ear

  • H70.11—

    Chronic mastoiditis, right ear

  • H70.12—

    Chronic mastoiditis, left ear

  • H70.13—

    Chronic mastoiditis, bilateral

  • H70.2—

    Petrositis

  • H70.20—

    Unspecified petrositis

  • H70.201—

    Unspecified petrositis, right ear

  • H70.202—

    Unspecified petrositis, left ear

  • H70.203—

    Unspecified petrositis, bilateral

  • H70.209—

    Unspecified petrositis, unspecified ear

  • H70.21—

    Acute petrositis

  • H70.211—

    Acute petrositis, right ear

  • H70.212—

    Acute petrositis, left ear

  • H70.213—

    Acute petrositis, bilateral

  • H70.219—

    Acute petrositis, unspecified ear

  • H70.22—

    Chronic petrositis

  • H70.221—

    Chronic petrositis, right ear

  • H70.222—

    Chronic petrositis, left ear

  • H70.223—

    Chronic petrositis, bilateral

  • H70.229—

    Chronic petrositis, unspecified ear

  • H70.8—

    Other mastoiditis and related conditions

  • H70.81—

    Postauricular fistula

  • H70.811—

    Postauricular fistula, right ear

  • H70.812—

    Postauricular fistula, left ear

  • H70.813—

    Postauricular fistula, bilateral

  • H70.819—

    Postauricular fistula, unspecified ear

  • H70.89—

    Other mastoiditis and related conditions

  • H70.891—

    Other mastoiditis and related conditions, right ear

  • H70.892—

    Other mastoiditis and related conditions, left ear

  • H70.893—

    Other mastoiditis and related conditions, bilateral

  • H70.899—

    Other mastoiditis and related conditions, unspecified ear

PreviousPage 8 of 18Next