ICD10 code of Best Vitelliform Macular Dystrophy and ICD9 code

Best Vitelliform Macular Dystrophy, often referred to as Best disease, is classified under ICD-10 code H35.52 (Pigmentary retinal dystrophy) and ICD-9 code 362.75 (Best's vitelliform macular dystrophy). These diagnostic codes are essential for medical billing, insurance documentation, and tracking the clinical progression of this rare, inherited condition.

What is Best Vitelliform Macular Dystrophy?

Best Vitelliform Macular Dystrophy is a rare, autosomal dominant retinal disorder characterized by the accumulation of yellowish, egg-yolk-like material under the macula. While visual acuity may remain normal in the early stages, the disease typically progresses through several stages, eventually leading to atrophy of the retinal pigment epithelium. Currently, six members of the DiseaseMaps.org community are living with this condition and sharing their experiences.

Is Best Vitelliform Macular Dystrophy hereditary?

Yes, Best Vitelliform Macular Dystrophy is an inherited condition caused by mutations in the BEST1 gene. Because it follows an autosomal dominant pattern of inheritance, an affected individual has a 50% chance of passing the gene mutation to each of their children. Genetic counseling is highly recommended for families navigating an Best Vitelliform Macular Dystrophy diagnosis to understand the implications of these genetic variants.

How is Best Vitelliform Macular Dystrophy diagnosed?

Clinical diagnosis of Best Vitelliform Macular Dystrophy usually involves a combination of specialized ophthalmic testing. Physicians look for specific indicators, including:

• Electro-oculogram (EOG): A severely reduced Arden ratio is a hallmark diagnostic finding.


• Fundus Examination: Identifying the classic "egg-yolk" lesion in the macula.


• Optical Coherence Tomography (OCT): Used to visualize the subretinal deposits and monitor structural changes.


• Genetic Testing: Molecular confirmation of a pathogenic BEST1 mutation.

Next steps

• Consult a retina specialist or ophthalmologist familiar with inherited retinal dystrophies.


• Request a referral to a clinical geneticist to discuss family screening for Best Vitelliform Macular Dystrophy.


• Connect with the Best Vitelliform Macular Dystrophy community on DiseaseMaps.org to share resources and support.


• Monitor for any sudden changes in central vision and schedule regular dilated eye exams.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Best Vitelliform Macular Dystrophy.


• Orphanet: Best Vitelliform Macular Dystrophy (ORPHA:1296).


• OMIM (Online Mendelian Inheritance in Man): #153700 - Bestrophinopathy.


• American Academy of Ophthalmology: Inherited Retinal Diseases.