ICD-10 Code H75.81 – Other specified disorders of right middle ear and mastoid in diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H75.81 – Other specified disorders of right middle ear and mastoid in diseases classified elsewhere
What it is
This code identifies a specified disorder affecting the right middle ear or mastoid that is caused by, or occurs as part of, another disease. Use it when the condition is documented on the right side and no more specific code fits.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe right-sided middle ear or mastoid abnormality linked to another underlying condition, with findings such as ear discomfort, hearing changes, or exam abnormalities.
When to use this code
Use H75.81 when the provider documents a right middle ear or mastoid disorder secondary to another disease and specifies that it is not otherwise classifiable. It is appropriate when the chart clearly links the ear finding to an underlying condition. If the note is vague, check documentation.
Do not use for
Do not use this code for unspecified ear disease, left-sided disease, or conditions not documented as secondary to another disorder. Also avoid it when a more specific diagnosis for the middle ear, mastoid, or underlying disease is available.
Coding tip
Verify both laterality and the causal underlying disease in the note before assigning H75.81.