ICD-10 Code H95.199 – Other disorders following mastoidectomy, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.199 – Other disorders following mastoidectomy, unspecified ear
What it is
H95.199 identifies a disorder that occurs after a mastoidectomy when the affected ear is not specified. Use it for postoperative ear complications or sequelae tied to the mastoid surgery, when documentation does not name a more specific condition.
Clinical signs
Clinical features vary; refer to documentation. Findings may include persistent postoperative ear symptoms, abnormal drainage, pain, swelling, or other mastoidectomy-related complications noted by the provider.
When to use this code
Use this code when the record states a disorder following mastoidectomy but does not identify a more specific diagnosis or laterality. It is appropriate for postoperative complications linked to the surgical site, including unspecified ear documentation. If the note names a clearer condition, code that diagnosis instead.
Do not use for
Do not use H95.199 for routine postoperative follow-up without a complication, or for conditions unrelated to mastoidectomy. Check documentation if the ear, complication type, or cause is specified.
Coding tip
Always look for the exact postoperative complication and ear laterality before selecting this unspecified code.