H80.03 Otosclerosis involving oval window, nonobliterative, bilateral

ICD10CM code

#### Name of the Condition
- Otosclerosis Involving Oval Window, Nonobliterative, Bilateral

#### Summary
Otosclerosis is a bone condition of the middle ear that can lead to hearing loss. When it affects the oval window (a critical part of the ear involved in sound transmission) without fully blocking it, and occurs in both ears, it is termed nonobliterative, bilateral otosclerosis.

#### Causes
The exact cause of otosclerosis is unknown, but it is believed to be related to a mix of genetic factors and possibly viral infections, such as measles.

#### Risk Factors
- Family history of otosclerosis.
- Caucasian ethnicity.
- Female gender.
- Hormonal changes, such as pregnancy.

#### Symptoms
- Gradual hearing loss.
- Tinnitus (ringing or buzzing in the ears).
- Dizziness or balance issues (less common).

#### Diagnosis
- Audiometry to assess hearing loss.
- Tympanometry to evaluate middle ear function.
- CT scans to visualize changes in the bone around the oval window.

#### Treatment Options
- **Hearing Aids:** Help amplify sounds for better hearing.
- **Surgery (Stapedectomy):** Removes or bypasses abnormal bone to improve sound conduction.
- **Medications:** Fluoride supplements may slow progression in some cases.

#### Prognosis and Follow-Up
With appropriate treatment, many patients experience significant improvement in hearing. Regular follow-ups with an audiologist or ENT specialist are crucial to monitor hearing and adjust treatment as needed.

#### Complications
- Further hearing loss.
- Possible damage to inner ear structures if surgically treated.
- In rare cases, total deafness.

#### Lifestyle & Prevention
- Protect ears from loud noises to prevent further hearing loss.
- Regular audiological evaluations, especially if you have a family history.
- Early detection and management can prevent progression.

#### When to Seek Professional Help
Consult a healthcare professional if you experience sudden hearing loss, persistent tinnitus, or dizziness, as these may require prompt evaluation.

#### Additional Resources
- American Academy of Otolaryngology-Head and Neck Surgery: [https://www.entnet.org](https://www.entnet.org)
- Deafness Research UK

#### Tips for Medical Coders
- Ensure bilateral involvement is specified with ICD code H80.03.
- Confirm condition is nonobliterative when coding to distinguish correctly from obliterative forms.

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