ICD-10-CM Billable Code

H40.23

Intermittent angle-closure glaucoma

Clinical Classification Guidelines

Medical Intelligence & Overview

Intermittent angle-closure glaucoma is a type of glaucoma characterized by episodic increases in eye pressure, often caused by blockages in the eye's drainage angle. This condition can lead to episodes of blurred vision, eye pain, and halos around lights, particularly during sudden pressure spikes. Recognizing and understanding this condition is essential for maintaining eye health and preventing potential vision loss.

Causes & Symptoms

Clinical Causes: Narrowing of the anterior chamber angle of the eye Pupil dilation that temporarily blocks the drainage angle Anatomical factors such as shallow anterior chambers Age-related changes leading to lens enlargement Certain medications that cause pupil dilation

Key Symptoms: Sudden episodes of eye pain or discomfort Temporary blurred or reduced vision Halos or rainbow-colored rings around lights Headache and nausea during acute episodes Redness in the affected eye Sensitivity to light

Diagnostic & Treatment

Diagnosis Path: Diagnosis involves a thorough eye examination, including measuring eye pressure and inspecting the anterior chamber angle. Gonioscopy, a procedure using a special lens to view the drainage angle, helps determine if the angle is closed or narrow. Additional tests such as tonometry to assess intraocular pressure, and slit-lamp examination, may be used to evaluate eye health and rule out other conditions.

Treatment Protocols: Treatment strategies aim to reduce eye pressure and prevent future episodes. These may include medications like eye drops or oral drugs to lower intraocular pressure, laser procedures such as laser peripheral iridotomy to open the drainage angle, or surgical interventions if necessary. Ongoing monitoring and regular eye check-ups are crucial to managing this condition effectively.

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 H40.23 a billable ICD-10 code?
Yes, H40.23 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H40.23?
Clinical documentation must specify the nature of Intermittent angle-closure glaucoma and any associated comorbidities for accurate reporting.

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