ICD-10 Code H95.129 – Granulation of postmastoidectomy cavity, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.129 – Granulation of postmastoidectomy cavity, unspecified ear
What it is
H95.129 identifies granulation tissue forming in a postmastoidectomy cavity when the affected ear is not specified. It refers to an abnormal healing response after mastoid surgery.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include visible granulation tissue in the mastoid cavity, persistent drainage, or delayed healing noted on otologic exam.
When to use this code
Use this code when the provider documents granulation tissue in a postmastoidectomy cavity and does not specify right or left ear. It is appropriate for postoperative follow-up notes, problem lists, or ENT evaluations describing the cavity finding. Check documentation if the record mentions infection, cholesteatoma, or another more specific postoperative issue.
Do not use for
Do not use this code for routine postoperative healing without granulation tissue. Do not use it when the ear side is documented and a laterality-specific code is available.
Coding tip
Confirm the operative history and ear laterality in the chart before assigning H95.129.