G45.3

What This Code Means

Amaurosis fugax is a temporary loss of vision in one eye that comes and goes, usually lasting only a few minutes to hours. It's often caused by a blood clot or plaque temporarily blocking blood flow to the eye and typically resolves on its own without permanent damage.

Coding Tips

• •Amaurosis fugax is considered a transient ischemic attack (TIA) equivalent and should prompt investigation for stroke risk factors; always check for related codes such as atherosclerosis or carotid artery disease
• •Document whether this is a first occurrence or recurrent episode, and verify laterality (right eye, left eye, or bilateral) if specified in the clinical documentation for accurate coding