ICD-10-CM Code H74: Other disorders of middle ear mastoid and Related Diagnosis Codes.


The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions. Healthcare providers report these codes on Medical claims when diagnosing patient care.

Explore ICD-10-CM codes, organized by chapters based on body systems and medical conditions, as outlined in the International Classification of Diseases, Tenth Revision, Clinical Modification.

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A categorized list of ICD-10-CM codes organized by chapters based on body systems or medical conditions, according to the International Classification of Diseases, Tenth Revision, Clinical Modification.

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  • H74 - Other disorders of middle ear mastoid
    • 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

Note: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes are developed and maintained by the Centers for Disease Control and Prevention (CDC). CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions. All rights are reserved by the respective entities.