ICD-10 Code H95.122 – Granulation of postmastoidectomy cavity, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.122 – Granulation of postmastoidectomy cavity, left ear
What it is
H95.122 identifies granulation tissue developing in the left postmastoidectomy cavity. It means healing tissue has overgrown or persisted after mastoid surgery and is documented in the left ear.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record may note visible granulation tissue, chronic drainage, or an abnormal postoperative cavity on otoscopic or surgical examination.
When to use this code
Use this code when the provider documents granulation specifically in the left postmastoidectomy cavity. It applies to a postoperative ear cavity finding, not to a general ear infection or nonspecific postoperative inflammation. If the laterality is not stated, check documentation.
Do not use for
Do not use this code for granulation in the right ear or an unspecified postmastoidectomy cavity. Do not assign it for routine postoperative healing without documented granulation tissue.
Coding tip
Confirm both the postoperative cavity and left-sided laterality in the note before assigning H95.122.