ICD-10-CM Billable Code

H18.1

Bullous keratopathy

Clinical Classification Guidelines

Medical Intelligence & Overview

Bullous keratopathy is a condition affecting the cornea, the clear front surface of the eye. It occurs when the corneal endothelial cells, responsible for maintaining proper fluid balance, become damaged or lose function. This leads to the accumulation of fluid within the cornea, causing swelling and the formation of blister-like bubbles called bullae on the corneal surface. These changes can impair vision and cause discomfort or pain. Bullous keratopathy most often develops as a complication of eye surgeries or other corneal conditions, impacting the quality of life for affected individuals.

Causes & Symptoms

Clinical Causes: Surgical procedures involving the cornea, such as cataract surgery Corneal dystrophies, especially Fuchs' endothelial dystrophy Corneal trauma or injuries Infections affecting the cornea Age-related decline in endothelial cell function

Key Symptoms: Blurred vision Corneal swelling and haziness Appearance of blister-like bubbles (bullae) on the corneal surface Eye discomfort or irritation Sensitivity to light (photophobia) Tearing or watery eyes In severe cases, pain due to ruptured bullae

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves a comprehensive eye exam using slit-lamp biomicroscopy to visualize the cornea and detect bullae, edema, or haze. Pachymetry, which measures corneal thickness, can show swelling. Corneal endothelial cell analysis with specular microscopy helps assess cell health and density. In some cases, additional imaging or tests may be used to confirm the diagnosis and rule out other corneal conditions.

Treatment Protocols: Management of bullous keratopathy aims to alleviate symptoms and prevent further corneal damage. Options include topical medications such as hyperosmotic agents to reduce corneal swelling and lubricating eye drops to ease discomfort. In more advanced cases, surgical interventions like Descemet's membrane endothelial keratoplasty (DMEK) or penetrating keratoplasty may be necessary to replace damaged corneal tissue. Patients are advised to protect their eyes from injury and avoid irritating substances, and routine monitoring by an eye care specialist is essential for optimal management.

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 H18.1 a billable ICD-10 code?
Yes, H18.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H18.1?
Clinical documentation must specify the nature of Bullous keratopathy and any associated comorbidities for accurate reporting.

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