ICD-10-CM Code H74

Other disorders of middle ear mastoid

Version 2021 Non-Billable Code

Not Valid for Submission

H74 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of other disorders of middle ear mastoid. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:H74
Short Description:Other disorders of middle ear mastoid
Long Description:Other disorders of middle ear mastoid

Consider the following ICD-10 codes with a higher level of specificity:

  • H74.0 - Tympanosclerosis
  • H74.01 - Tympanosclerosis, right ear
  • H74.02 - Tympanosclerosis, left ear
  • H74.03 - Tympanosclerosis, bilateral
  • H74.09 - Tympanosclerosis, unspecified ear
  • H74.1 - Adhesive middle ear disease
  • H74.11 - Adhesive right middle ear disease
  • H74.12 - Adhesive left middle ear disease
  • H74.13 - Adhesive middle ear disease, bilateral
  • H74.19 - Adhesive middle ear disease, unspecified ear
  • H74.2 - Discontinuity and dislocation of ear ossicles
  • H74.20 - Discontinuity and dislocation of ear ossicles, unspecified ear
  • H74.21 - Discontinuity and dislocation of right ear ossicles
  • H74.22 - Discontinuity and dislocation of left ear ossicles
  • H74.23 - Discontinuity and dislocation of ear ossicles, bilateral
  • H74.3 - Other acquired abnormalities of ear ossicles
  • H74.31 - Ankylosis of ear ossicles
  • H74.311 - Ankylosis of ear ossicles, right ear
  • H74.312 - Ankylosis of ear ossicles, left ear
  • H74.313 - Ankylosis of ear ossicles, bilateral
  • H74.319 - Ankylosis of ear ossicles, unspecified ear
  • H74.32 - Partial loss of ear ossicles
  • H74.321 - Partial loss of ear ossicles, right ear
  • H74.322 - Partial loss of ear ossicles, left ear
  • H74.323 - Partial loss of ear ossicles, bilateral
  • H74.329 - Partial loss of ear ossicles, unspecified ear
  • H74.39 - Other acquired abnormalities of ear ossicles
  • H74.391 - Other acquired abnormalities of right ear ossicles
  • H74.392 - Other acquired abnormalities of left ear ossicles
  • H74.393 - Other acquired abnormalities of ear ossicles, bilateral
  • H74.399 - Other acquired abnormalities of ear ossicles, unspecified ear
  • H74.4 - Polyp of middle ear
  • H74.40 - Polyp of middle ear, unspecified ear
  • H74.41 - Polyp of right middle ear
  • H74.42 - Polyp of left middle ear
  • H74.43 - Polyp of middle ear, bilateral
  • H74.8 - Other specified disorders of middle ear and mastoid
  • H74.8X - Other specified disorders of middle ear and mastoid
  • H74.8X1 - Other specified disorders of right middle ear and mastoid
  • H74.8X2 - Other specified disorders of left middle ear and mastoid
  • H74.8X3 - Other specified disorders of middle ear and mastoid, bilateral
  • H74.8X9 - Other specified disorders of middle ear and mastoid, unspecified ear
  • H74.9 - Unspecified disorder of middle ear and mastoid
  • H74.90 - Unspecified disorder of middle ear and mastoid, unspecified ear
  • H74.91 - Unspecified disorder of right middle ear and mastoid
  • H74.92 - Unspecified disorder of left middle ear and mastoid
  • H74.93 - Unspecified disorder of middle ear and mastoid, bilateral

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code H74:

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • mastoiditis H70

Code Classification

  • Diseases of the ear and mastoid process (H60–H95)
    • Diseases of middle ear and mastoid (H65-H75)
      • Other disorders of middle ear mastoid (H74)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Ear Disorders

Your ear has three main parts: outer, middle and inner. You use all of them in hearing. Sound waves come in through your outer ear. They reach your middle ear, where they make your eardrum vibrate. The vibrations are transmitted through three tiny bones, called ossicles, in your middle ear. The vibrations travel to your inner ear, a snail-shaped organ. The inner ear makes the nerve impulses that are sent to the brain. Your brain recognizes them as sounds. The inner ear also controls balance.

A variety of conditions may affect your hearing or balance:

  • Ear infections are the most common illness in infants and young children.
  • Tinnitus, a roaring in your ears, can be the result of loud noises, medicines or a variety of other causes.
  • Meniere's disease may be the result of fluid problems in your inner ear; its symptoms include tinnitus and dizziness.
  • Ear barotrauma is an injury to your ear because of changes in barometric (air) or water pressure.

Some ear disorders can result in hearing disorders and deafness.

  • Aural polyps (Medical Encyclopedia)
  • Benign ear cyst or tumor (Medical Encyclopedia)
  • Ear discharge (Medical Encyclopedia)
  • Ear emergencies (Medical Encyclopedia)
  • Ear examination (Medical Encyclopedia)
  • Earache (Medical Encyclopedia)
  • Eardrum repair (Medical Encyclopedia)
  • Otosclerosis (Medical Encyclopedia)
  • Ruptured eardrum (Medical Encyclopedia)
  • Tympanometry (Medical Encyclopedia)
  • Wax blockage (Medical Encyclopedia)

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