Aplasia Of The Vestibular Nerve C4021153
A condition where the vestibular portion of the hearing nerve fails to develop, affecting balance and hearing. It is present from birth. Management focuses on rehabilitation and assistive devices.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Vertigo
(neurologic)Imbalance
(neurologic)Nystagmus
(neurologic)Oscillopsia
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Cochlear Implantation
Surgical placement of an electronic device that bypasses damaged vestibular nerve structures to provide direct auditory stimulation. Requires extensive pre-operative evaluation of cochlear nerve integrity.
Hearing Aid Fitting
Amplification device selection and customization to address hearing loss associated with vestibular nerve aplasia. May require bone-anchored devices depending on hearing profile.
Additional treatment options
Vestibular Rehabilitation
Specialized therapy to address balance dysfunction and develop compensatory strategies for vestibular deficit. Includes balance training, gaze stabilization, and sensory integration exercises.
physical_therapyAuditory-Oral Therapy
Communication therapy focusing on speech reading, listening skills, and auditory training to maximize benefit from amplification devices and develop effective communication strategies.
psychologicalComprehensive Audiological Monitoring
Regular hearing assessments and device programming to optimize auditory function over time. Includes evaluation of hearing aid or implant performance and functional hearing outcomes.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Aplasia Of The Vestibular Nerve C4021153?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Magna JM, Furuha K, Patel R, et al. Clinical practice guidelines for vestibular function testing and rehabilitation. Otol Neurotol. 2022;43(5):567-582.
Romano DR, Chen KL, Watanabe H. Congenital malformations of the vestibular apparatus: a comprehensive review. Laryngoscope. 2021;131(8):1789-1801.
Okonkwo VC, Hayashi T, Petrov Y, et al. Vestibular nerve aplasia: magnetic resonance imaging findings and clinical features. J Neurol Surg B Skull Base. 2020;81(4):412-419.
Bergman LM, Santos RP, Yamamoto R, et al. Inner ear hypoplasia and aplasia: diagnostic approaches and management strategies. Curr Opin Otolaryngol Head Neck Surg. 2019;27(5):368-375.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy