ICD-10 Code H95.0 – Recurrent cholesteatoma of postmastoidectomy cavity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.0 – Recurrent cholesteatoma of postmastoidectomy cavity
What it is
H95.0 identifies a cholesteatoma that has returned in a mastoidectomy cavity after prior ear surgery. It refers to abnormal keratinizing tissue in the postoperative space, not a new routine ear infection.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include chronic ear drainage, debris in the cavity, or visible recurrent cholesteatoma on otoscopic or surgical examination.
When to use this code
Use H95.0 when the record documents recurrent cholesteatoma specifically in a postmastoidectomy cavity. This is appropriate when the surgeon or otologist confirms recurrence in the previously operated mastoid space.
Do not use it for a general history of mastoid surgery or for uncomplicated postoperative follow-up. If the note only says “ear disease” or “mastoid cavity issue,” check documentation for recurrence.
Do not use for
Do not use H95.0 for primary cholesteatoma outside a postoperative cavity. Also avoid it when the chart describes infection, debris, or granulation tissue without confirmed recurrent cholesteatoma.
Coding tip
Code H95.0 only when recurrence and postmastoidectomy location are both clearly documented.