Amaurosis fugax
ICD-10 G45.3 is a billable code used to indicate a diagnosis of amaurosis fugax.
Amaurosis fugax is a transient visual loss that occurs due to temporary ischemia of the retina or the optic nerve. It is often described as a 'curtain' or 'shade' descending over the visual field, typically lasting from seconds to minutes, but can persist for up to 24 hours. This condition is frequently associated with transient ischemic attacks (TIAs) and can serve as a warning sign for impending cerebrovascular accidents (strokes). The underlying mechanism involves a temporary reduction in blood flow to the eye, often due to emboli originating from carotid arteries or cardiac sources. Patients may experience episodes of visual disturbance without any permanent damage to the retina or optic nerve. Risk factors include atherosclerosis, hypertension, diabetes, and atrial fibrillation. Prompt recognition and management of amaurosis fugax are crucial, as it may indicate a higher risk of future strokes. Preventive measures often involve addressing underlying vascular risk factors and may include antiplatelet therapy or anticoagulation, depending on the etiology. Regular follow-up and monitoring are essential to prevent further cerebrovascular events.
Detailed neurological examination findings, including visual field tests and imaging results.
Patients presenting with sudden visual loss, often with a history of TIAs or stroke.
Documentation must clearly link visual symptoms to cerebrovascular risk factors and potential interventions.
Comprehensive eye examination results, including fundoscopic findings and visual acuity assessments.
Patients experiencing transient visual disturbances with no permanent retinal damage.
Must differentiate between amaurosis fugax and other ocular conditions that may cause transient vision loss.
Used for follow-up visits after an episode of amaurosis fugax.
Document history of present illness, review of systems, and assessment of risk factors.
Neurology and ophthalmology may have specific documentation needs based on the patient's history.
Amaurosis fugax is primarily caused by transient ischemia of the retina or optic nerve, often due to emboli from carotid arteries or cardiac sources.
Symptoms of amaurosis fugax usually last from seconds to 30 minutes, but can persist for up to 24 hours in some cases.
Risk factors include atherosclerosis, hypertension, diabetes, atrial fibrillation, and a history of transient ischemic attacks.
Diagnosis is based on the patient's history of transient visual loss, neurological examination, and imaging studies to assess vascular health.
