ICD-10-CM Billable Code

H18.233

Secondary corneal edema, bilateral

Clinical Classification Guidelines

Medical Intelligence & Overview

Secondary bilateral corneal edema is a condition characterized by swelling of the corneas in both eyes due to underlying issues. The cornea is the transparent front part of the eye that helps focus light onto the retina. When it becomes swollen, vision can be affected, and discomfort may occur. This condition is termed 'secondary' because it results from other eye problems or systemic health issues rather than being a primary disorder.

Causes & Symptoms

Clinical Causes: Glaucoma, especially when intraocular pressure is poorly controlled Previous eye injuries or surgeries that have damaged corneal tissues Chronic inflammation or uveitis affecting the eye's interior Endothelial cell dysfunction or loss, often due to aging Corneal endothelial dystrophies such as Fuchs’ dystrophy Chronic use of certain eye medications or contact lens overuse Systemic health problems like diabetes that impact eye health

Key Symptoms: Blurred or hazy vision in both eyes Sensitivity to light (photophobia) Halo or glare around lights, especially at night Eye discomfort or a sensation of fullness Possible redness or mild irritation Decrease in visual acuity over time

Diagnostic & Treatment

Diagnosis Path: The diagnosis involves a comprehensive eye examination, including visual acuity tests, slit-lamp microscopy, and corneal pachymetry to measure corneal thickness. The eye doctor may also assess intraocular pressure and perform endothelial cell counts. Imaging techniques such as specular microscopy can evaluate corneal endothelial health. A thorough review of the patient's medical and ocular history helps determine if any underlying systemic or ocular conditions are contributing to the edema.

Treatment Protocols: Management focuses on treating the underlying causes and alleviating symptoms. Approaches may include: - Use of hyperosmotic eye drops or ointments to reduce corneal swelling. - Control of intraocular pressure in cases related to glaucoma. - Addressing inflammation with anti-inflammatory medications. - Adjusting or discontinuing contact lens use if applicable. - Surgical interventions, such as corneal transplant, in severe cases where corneal damage is extensive. - Regular monitoring to assess disease progression and response to treatments. Patients are advised to follow their eye care specialist's recommendations closely to preserve vision and prevent complications.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is H18.233 a billable ICD-10 code?
Yes, H18.233 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H18.233?
Clinical documentation must specify the nature of Secondary corneal edema, bilateral and any associated comorbidities for accurate reporting.

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