Partial retinal artery occlusion, bilateral

This code signifies a partial blockage of the retinal artery affecting both eyes. This condition restricts blood flow to the retina, potentially leading to vision impairment or loss in the affected areas of the eye. It indicates an incomplete obstruction rather than a complete cessation of blood supply.

Use this code when documentation explicitly states a partial retinal artery occlusion affecting both the right and left eyes. This diagnosis is typically made following ophthalmoscopic examination, fluorescein angiography, or optical coherence tomography. Documentation should specify the partial nature of the occlusion and bilateral involvement.

• Ensure documentation clearly specifies "partial" occlusion; do not use for complete occlusions.
• Verify bilateral involvement is explicitly stated; avoid using this code if only one eye is affected.
• Consider additional codes for underlying causes (e.g., atherosclerosis, embolism) if documented.