ICD-10 Code H71.10 – Cholesteatoma of tympanum, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H71.10 – Cholesteatoma of tympanum, unspecified ear
What it is
H71.10 identifies a cholesteatoma located in the tympanum, or middle ear space, when the ear side is not specified. It refers to an abnormal skin-like growth that can erode nearby structures.
Clinical signs
Common findings include chronic ear drainage, hearing loss, and a retraction pocket or keratin debris on otoscopic exam. Clinical features vary; refer to documentation.
When to use this code
Use H71.10 when the provider documents cholesteatoma of the tympanum but does not state right or left ear. This code fits confirmed diagnoses in the middle ear, not suspected cases. If the record specifies the ear laterality, code the more specific option instead.
Do not use for
Do not use this code for cholesteatoma in another ear site or when the documentation only says “ear mass” or “chronic otitis” without cholesteatoma. Check documentation if laterality or location is unclear.
Coding tip
Verify both the anatomic site and ear laterality before assigning H71.10.