Partial retinal artery occlusion, right eye

This code signifies a blockage affecting a portion of the arterial blood supply to the retina in the right eye. This partial obstruction leads to localized retinal ischemia and can result in corresponding visual field defects.

Apply this code when documentation specifies a partial retinal artery occlusion affecting the right eye. Supporting documentation should include ophthalmological exam findings, such as retinal whitening or emboli, and potentially imaging like fluorescein angiography confirming a partial obstruction.

• Differentiate from central retinal artery occlusion (CRAO) or branch retinal artery occlusion (BRAO), which have distinct codes.
• Ensure laterality is clearly documented as "right eye" to support this specific code.
• Consider co-occurring systemic conditions, such as atherosclerosis or emboli, which may require additional coding.