H34.11
Central retinal artery occlusion, right eye
Clinical Classification Guidelines
Medical Intelligence & Overview
Central Retinal Artery Occlusion (CRAO) is a serious eye condition characterized by a sudden loss of vision in one eye, caused by a blockage in the main artery supplying blood to the retina. Specifically affecting the right eye when classified under ICD-10 code H34.11, CRAO requires immediate attention to prevent permanent vision loss. The condition results from a blood clot or other material obstructing the central retinal artery, leading to a lack of oxygen and nutrients to the retina. The retina is a vital tissue at the back of the eye responsible for converting light into neural signals sent to the brain, enabling vision. When blood flow is interrupted, the retina quickly suffers damage, often resulting in sudden, painless vision loss in the affected eye.
Causes & Symptoms
Clinical Causes: Blockage due to emboli (such as cholesterol or calcium deposits) Blood clots related to cardiovascular diseases Atherosclerosis (hardening of the arteries) Cardiovascular risk factors like high blood pressure and diabetes Vascular diseases that affect blood flow Rarely, inflammatory conditions affecting blood vessels
Key Symptoms: Sudden loss of vision in the right eye Pain is usually not present A visual field defect or shadow may be observed Possible appearance of a cherry-red spot at the retina center Sudden dimming or blurring of vision
Diagnostic & Treatment
Diagnosis Path: Diagnosing CRAO involves a comprehensive eye examination by an ophthalmologist, including viewing the retina through specialized instruments like ophthalmoscopy. Additional tests may include imaging studies such as fluorescein angiography, which helps visualize blood flow in the retina, or Doppler ultrasound to assess blood vessel health. The rapid onset of symptoms and characteristic appearance of the retina are key factors in diagnosis, emphasizing the importance of prompt medical evaluation.
Treatment Protocols: Immediate management aims to restore blood flow and prevent further retinal damage. Common approaches may include ocular massage to dislodge the embolus, breathing into a paper bag to increase carbon dioxide levels and dilate blood vessels, and lowering intraocular pressure with medications. In some cases, medications like thrombolytics or anti-platelet agents may be considered. However, the effectiveness of treatment varies, and the chances of full recovery diminish with delay. Preventative measures focusing on controlling cardiovascular risk factors are essential to reduce recurrence risk.
Clinical Advice & FAQs
Billing Guidance
Is H34.11 a billable ICD-10 code?
Yes, H34.11 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H34.11?
Clinical documentation must specify the nature of Central retinal artery occlusion, right eye and any associated comorbidities for accurate reporting.
Cite this Clinical Reference