ICD-10 Code H95.111 – Chronic inflammation of postmastoidectomy cavity, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.111 – Chronic inflammation of postmastoidectomy cavity, right ear
What it is
This code identifies chronic inflammation in the mastoidectomy cavity of the right ear after surgery. Use it when the provider documents persistent inflammatory changes in that postoperative ear space.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a chronically inflamed postoperative cavity, ongoing drainage, or recurrent local irritation in the right ear after mastoid surgery.
When to use this code
Use H95.111 when the record clearly states chronic inflammation of the right postmastoidectomy cavity. It fits postoperative ear follow-up when the condition is active and specifically linked to the mastoidectomy cavity. If the note only says ear pain, drainage, or infection without this diagnosis, check documentation.
Do not use for
Do not use this code for nonspecific otitis, acute postoperative infection, or mastoid disease without a postmastoidectomy cavity. Check documentation if the side is not right or the chronic inflammatory diagnosis is not stated.
Coding tip
Confirm the operative history and laterality in the note before assigning H95.111.