H52.21
Irregular astigmatism
Clinical Classification Guidelines
Medical Intelligence & Overview
Irregular astigmatism is a type of vision problem caused by uneven curvature of the cornea or lens of the eye. Unlike regular astigmatism, where the eye's surface is shaped more like a football, irregular astigmatism involves an uneven or asymmetrical surface, leading to distorted or blurred vision. It can occur due to injuries, surgeries, or certain eye conditions and often requires specialized assessment and treatment to improve vision quality.
Causes & Symptoms
Clinical Causes: Corneal scarring from injuries or infections Keratoconus (a progressive thinning of the cornea) Post-surgical changes after eye procedures such as cataract or corneal transplants Eye diseases that alter corneal shape, such as keratitis Trauma or traumatic injury to the eye
Key Symptoms: Distorted vision or images Blurred or hazy vision Frequent changes in prescription needs Sensitivity to light and glare Difficulty seeing at night
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a comprehensive eye examination, including corneal topography, which maps the surface of the cornea to detect irregularities. Refraction tests and slit-lamp examinations may also be performed to assess the overall health of the eye and identify the irregularities causing the astigmatism.
Treatment Protocols: Treatment options depend on the severity and cause of the irregular astigmatism. Possible approaches include: - Custom-tinted or specialized contact lenses, such as rigid gas permeable lenses, designed to mask surface irregularities - Corneal refractive surgery, like customized laser procedures - In cases of corneal scarring, surgical procedures such as corneal transplantation or scars removal - Use of corrective glasses with special lenses to improve vision quality Patients should consult an eye care professional to explore the most appropriate treatment in their specific case.
Clinical Advice & FAQs
Billing Guidance
Is H52.21 a billable ICD-10 code?
Yes, H52.21 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H52.21?
Clinical documentation must specify the nature of Irregular astigmatism and any associated comorbidities for accurate reporting.
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