H21.263
Iris atrophy (essential) (progressive), bilateral
Clinical Classification Guidelines
Medical Intelligence & Overview
Bilateral iris atrophy, also known as progressive essential iris atrophy, is a condition characterized by the gradual deterioration and shrinkage of the iris tissue in both eyes. The iris is the colored part of the eye that controls the size of the pupil and regulates the amount of light reaching the retina. In this condition, the thinning and loss of iris tissue can affect eye appearance and vision. Although it typically develops slowly over time, bilateral iris atrophy can lead to discomfort and complications if not properly managed.
Causes & Symptoms
Clinical Causes: Genetic factors playing a role in the development of iris tissue deterioration. Age-related changes that might contribute to progressive iris atrophy. Unknown causes in many cases, classified as essential or idiopathic. Potential autoimmune mechanisms, although not definitively established.
Key Symptoms: Gradual fading or loss of iris pigmentation, leading to a lighter eye color. Thinning or atrophy of the iris tissue, which may be visible as a translucent or shiny appearance. Increased sensitivity to light (photophobia). Difficulty adjusting to changes in lighting conditions. Possible irregularities in pupil shape or size. In some cases, visual disturbances such as glare or reduced visual acuity.
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a comprehensive eye examination by an ophthalmologist. The clinician may perform the following:
Treatment Protocols: There is no specific cure for bilateral iris atrophy. Management focuses on alleviating symptoms and preventing complications:
Clinical Advice & FAQs
Billing Guidance
Is H21.263 a billable ICD-10 code?
Yes, H21.263 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H21.263?
Clinical documentation must specify the nature of Iris atrophy (essential) (progressive), bilateral and any associated comorbidities for accurate reporting.
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