ICD-10 Code H95.00 – Recurrent cholesteatoma of postmastoidectomy cavity, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.00 – Recurrent cholesteatoma of postmastoidectomy cavity, unspecified ear
What it is
This code identifies a recurrent cholesteatoma that develops in a postmastoidectomy cavity, with the ear side not specified. It means residual or returning keratinizing tissue is present after prior mastoid surgery.
Clinical signs
Findings may include chronic or recurrent ear drainage, debris in the cavity, and conductive hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use H95.00 when the provider documents a recurrent cholesteatoma in a mastoidectomy cavity and does not specify right or left ear. It is appropriate after prior mastoid surgery when the lesion has returned or persisted. Check documentation if the record only says cholesteatoma without recurrence or postoperative cavity involvement.
Do not use for
Do not use this code for a primary cholesteatoma without a postmastoidectomy cavity, or when the ear side is documented. Do not assign it if the note does not clearly state recurrence.
Coding tip
Verify both recurrence and postoperative cavity status before assigning H95.00, and query for laterality if the chart identifies the affected ear.