Diseases of middle ear and mastoid (H65-H75)

ICD-10 codes H65 through H75 cover a range of conditions affecting the middle ear and mastoid, focusing on various types of otitis media, Eustachian tube disorders, mastoiditis, cholesteatoma, tympanic membrane perforations, and other middle ear complications.

This code range addresses nonsuppurative otitis media such as acute serous (acute non-suppurative serous otitis media, H65 series) and allergic otitis media, distinguishing by ear and whether the condition is recurrent. It also includes suppurative otitis media (H66 series) that involves pus and may include tympanic membrane rupture, with detailed codes specifying ear side and recurrence. The codes for Eustachian salpingitis and obstruction (H68) track inflammation and blockage of the Eustachian tube, which can affect ear ventilation. Mastoiditis and related conditions (H70) codes describe acute and chronic infections of the mastoid bone, sometimes with abscess formation. The cholesteatoma codes (H71) focus on abnormal skin growths in the middle ear or mastoid. Perforations of the tympanic membrane are classified by type and ear (H72), while other tympanic membrane disorders such as myringitis and structural abnormalities are found under H73. Additional codes (H74) cover other disorders including tympanosclerosis and ossicular problems. Finally, H75 codes note middle ear and mastoid disorders linked to other diseases.

These codes help medical professionals precisely document middle ear and mastoid diseases, facilitating targeted treatment and accurate health records. For example, "acute serous otitis media" synonyms connect to codes like H65.0 or H65.01, while “cholesteatoma of attic” corresponds to H71.0. Understanding the laterality and chronicity captured in these codes ensures accurate classification of ear conditions.