ICD-10 Code H71.1 – Cholesteatoma of tympanum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H71.1 – Cholesteatoma of tympanum
What it is
H71.1 identifies a cholesteatoma located in the tympanum, the middle ear space behind the eardrum. It refers to an abnormal skin-lined growth that can erode nearby structures.
Clinical signs
Typical findings include chronic ear drainage, conductive hearing loss, and a retraction pocket or mass behind the tympanic membrane. Clinical features vary; refer to documentation.
When to use this code
Use H71.1 when the provider documents cholesteatoma specifically in the tympanum or middle ear cavity. Code it when the record supports that location, even if the note also describes chronic infection or hearing loss. Check documentation if the site is unclear.
Do not use for
Do not use this code for cholesteatoma in another ear site, such as the mastoid or attic, unless the tympanum is clearly documented. Do not guess based on symptoms alone.
Coding tip
Confirm the exact anatomic site in the operative note, imaging report, or assessment before assigning H71.1.