H40.232
Intermittent angle-closure glaucoma, left eye
Clinical Classification Guidelines
Medical Intelligence & Overview
Intermittent angle-closure glaucoma is a condition that affects the eye's drainage system, leading to an increase in eye pressure. This specific type occurs episodically and primarily impacts the left eye in this context. It requires careful management to prevent potential damage to the optic nerve and preserve vision. Recognizing the signs and understanding the causes can help in seeking timely medical attention.
Causes & Symptoms
Clinical Causes: Anatomical factors such as a narrow anterior chamber angle that predisposes the eye to blockage of fluid drainage. Pupil dilation during dim lighting or focus on distant objects, which can temporarily close the drainage angle. Age-related changes in the eye structure that increase the likelihood of angle closure. Family history of angle-closure glaucoma, indicating a genetic predisposition. Certain medications that can dilate pupils, including some antihistamines, antidepressants, and others.
Key Symptoms: Intermittent episodes of eye pain or discomfort. Sudden onset of visual disturbances like blurred vision or halos around lights. Occasional redness in the affected eye. Brief episodes of haziness or a feeling of pressure in the eye. Transient loss of vision during episodes, which usually resolves spontaneously.
Diagnostic & Treatment
Diagnosis Path: Gonioscopy to examine the drainage angle of the eye. Intraocular pressure measurement using tonometry. Assessment of visual fields to detect any peripheral vision loss. Optical coherence tomography (OCT) to evaluate the optic nerve health. A detailed medical and ocular history to identify episodic patterns and risk factors.
Treatment Protocols: Medications such as eye drops (e.g., pilocarpine, beta-blockers, or carbonic anhydrase inhibitors) to reduce eye pressure. Laser peripheral iridotomy, a common procedure to create a small hole in the iris to facilitate fluid flow and prevent angle closure episodes. Monitoring with regular eye exams to observe for changes in eye pressure or optic nerve health. In some cases, additional surgical procedures may be considered if medications and laser treatments are insufficient.
Clinical Advice & FAQs
Billing Guidance
Is H40.232 a billable ICD-10 code?
Yes, H40.232 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H40.232?
Clinical documentation must specify the nature of Intermittent angle-closure glaucoma, left eye and any associated comorbidities for accurate reporting.
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