Q99.818
Other Usher syndrome
Clinical Classification Guidelines
Inclusion Terms
- Usher syndrome, type 4
Medical Intelligence & Overview
Other Usher Syndrome, classified under ICD-10 code Q99.818, refers to a rare genetic disorder characterized by dual sensory deficits involving hearing loss and vision impairment. Unlike other types of Usher syndrome, this form is less common and may present with unique clinical features. The condition can significantly impact a person's ability to communicate and navigate their environment, underscoring the importance of early diagnosis and supportive management.
Causes & Symptoms
Clinical Causes: Genetic mutations affecting genes responsible for sensory development and function Hereditary transmission, often inherited in an autosomal recessive pattern Potential involvement of novel or less common genetic pathways not yet fully understood
Key Symptoms: Progressive hearing loss, typically starting in early childhood or adolescence Retinitis pigmentosa leading to night blindness and peripheral vision loss Possible balance issues due to vestibular system involvement Variable severity of sensory deficits among individuals Difficulty understanding speech, especially in noisy environments Visual deterioration may lead to legal blindness over time
Diagnostic & Treatment
Diagnosis Path: Detailed medical and family history to identify hereditary patterns Audiological assessments, such as hearing tests, to evaluate hearing loss Ophthalmologic examinations, including fundoscopic examination and visual field tests Electroretinography to assess retinal function Genetic testing to identify specific mutations associated with the condition Vestibular testing if balance issues are suspected
Treatment Protocols: Hearing aids or cochlear implants to enhance hearing capabilities Vision assistive devices and orientation, mobility training to adapt to visual impairment Regular eye and ear examinations to monitor progression Speech and language therapy for communication support Genetic counseling for affected individuals and families Support groups and psychological counseling to address emotional and social challenges
Clinical Advice & FAQs
Billing Guidance
Is Q99.818 a billable ICD-10 code?
Yes, Q99.818 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report Q99.818?
Clinical documentation must specify the nature of Other Usher syndrome and any associated comorbidities for accurate reporting.
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