H91.23 Sudden idiopathic hearing loss, bilateral

Name of the Condition

• Sudden idiopathic hearing loss, bilateral

Summary

Sudden idiopathic hearing loss, bilateral, is a rapid, unexplained loss of hearing in both ears that typically develops over three days or less. It is considered a medical emergency, and prompt evaluation is recommended to improve recovery outcomes.

Causes

The exact cause of sudden idiopathic hearing loss, bilateral, is unknown. Potential associations include viral infections, autoimmune disorders, vascular issues, or cochlear membrane ruptures, though no definitive cause is identified in many cases.

Risk Factors

• Risk factors may include being over age 40, a history of autoimmune conditions, cardiovascular disease, recent upper respiratory infections, or smoking.

Symptoms

• The primary symptom is a sudden decrease in hearing in both ears, often accompanied by tinnitus (ringing in the ear), ear fullness, or dizziness.

Diagnosis

Diagnosis typically involves an audiogram to assess hearing loss. Additional tests, such as MRI or blood work, may be performed to rule out other conditions like acoustic neuroma or infection.

Treatment Options

• Treatment often includes corticosteroids to reduce inflammation. Antiviral medications may be considered if an infection is suspected. Hyperbaric oxygen therapy is another option in some cases.

Prognosis and Follow-Up

Prognosis varies; some patients experience partial or complete recovery, while others may have persistent hearing loss. Follow-up audiograms are typically recommended to monitor recovery and adjust treatment as needed.

Complications

• Persistent bilateral hearing loss, tinnitus, or balance issues may occur. Delayed treatment can reduce the likelihood of full recovery.

Lifestyle & Prevention

• Avoid exposure to loud noises, manage cardiovascular health, and seek prompt medical care for upper respiratory infections to reduce risk.

When to Seek Professional Help

• Immediate medical evaluation is recommended if sudden hearing loss in both ears occurs, as early intervention improves outcomes.

Tips for Medical Coders

• Use H91.23 for bilateral sudden idiopathic hearing loss. Ensure documentation specifies bilateral involvement and excludes other causes. Verify that the condition is idiopathic (no identified cause) to support accurate coding.