H90.A21 Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side

ICD10CM code

#### Name of the Condition
- Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side
- ICD Code: H90.A21

#### Summary
Sensorineural hearing loss refers to damage in the inner ear or the nerve pathways leading to the brain. Specifically, this condition affects only the right ear, with additional restrictions in hearing on the left side. This type of hearing loss can result in difficulties with sound localization and hearing clarity.

#### Causes
- Aging (presbycusis)
- Noise exposure (loud noises or occupational hazards)
- Genetic predispositions
- Viral or bacterial infections
- Ototoxic medications

#### Risk Factors
- Family history of hearing loss
- Frequent exposure to loud noises
- History of ear infections
- Certain medical treatments (e.g., chemotherapy)

#### Symptoms
- Reduced ability to hear sounds in the right ear
- Difficulty understanding speech
- Ringing in the ears (tinnitus)
- Problems with balance or dizziness

#### Diagnosis
- Audiometric tests (e.g., pure tone audiometry)
- MRI or CT scans to rule out other conditions
- Physical examination and medical history review
- Speech discrimination tests

#### Treatment Options
- Hearing aids or cochlear implants to amplify sound
- Auditory training and speech therapy
- Protecting ears from loud noises to prevent further damage
- Treating any underlying infections or conditions

#### Prognosis and Follow-Up
- Varies depending on the cause and severity
- Regular audiological assessments to monitor hearing
- Early intervention can improve quality of life and communication abilities

#### Complications
- Increased risk of social isolation or depression due to communication difficulties
- Impact on job performance and daily activities

#### Lifestyle & Prevention
- Using hearing protection in loud environments
- Regular hearing check-ups, especially for those at risk
- Avoiding ototoxic medications where possible

#### When to Seek Professional Help
- Sudden or rapidly progressing hearing loss
- Ear pain or discharge
- Persistent tinnitus or dizziness
- Difficulty understanding conversations

#### Additional Resources
- American Speech-Language-Hearing Association (ASHA) [asha.org]
- Hearing Loss Association of America [hearingloss.org]
- National Institute on Deafness and Other Communication Disorders [nidcd.nih.gov]

#### Tips for Medical Coders
- Ensure specific documentation references "unilateral, right ear" and "restricted hearing on the contralateral side" for accurate coding.
- Common coding errors include confusing with bilateral hearing loss; verify specifics with attending physicians.

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