H34.1
Central retinal artery occlusion
Clinical Classification Guidelines
Medical Intelligence & Overview
Central retinal artery occlusion (CRAO) is a serious eye condition that causes sudden vision loss due to a blocked blood flow in the central retinal artery, which supplies blood to the retina—the light-sensitive tissue at the back of the eye. This condition is often considered an ophthalmic emergency because prompt diagnosis and treatment are crucial for potential vision preservation. CRAO typically affects older adults and can be associated with systemic vascular diseases, indicating a possible need for comprehensive medical evaluation.
Causes & Symptoms
Clinical Causes: Atherosclerosis – build-up of fats, cholesterol, and other substances in the blood vessels Emboli – particles such as cholesterol or blood clots that block the artery Heart diseases – including atrial fibrillation, recent myocardial infarction, or valvular disorders Vasculitis – inflammation of blood vessels Vascular disorders – such as giant cell arteritis or hypercoagulable states Carotid artery disease – narrowing of the carotid arteries Elevated blood pressure or hypertension Diabetes mellitus – which can accelerate vascular damage
Key Symptoms: Sudden, painless loss of vision in one eye May describe vision as a curtain or a shadow descending over the visual field Possible initial partial vision loss that rapidly progresses Immediate decrease in visual acuity which might be severe No associated pain typically, distinguishing it from other eye conditions
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a comprehensive eye examination, including an assessment of visual acuity, pupil reactions, and the appearance of the retina. Key diagnostic tools include:
Treatment Protocols: Immediate intervention is critical in CRAO; however, treatment options are often limited and outcomes can vary. Typical approaches include:
Clinical Advice & FAQs
Billing Guidance
Is H34.1 a billable ICD-10 code?
Yes, H34.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H34.1?
Clinical documentation must specify the nature of Central retinal artery occlusion and any associated comorbidities for accurate reporting.
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