Central retinal vein occlusion, bi, with macular edema

This code signifies a blockage in the central retinal vein affecting both eyes, leading to impaired blood flow and subsequent swelling of the macula, the central part of the retina responsible for sharp, detailed vision. This condition can cause significant vision loss if left untreated.

Use this code when documentation clearly indicates a diagnosis of central retinal vein occlusion (CRVO) affecting both eyes, and specifically notes the presence of macular edema. This typically occurs in patients presenting with bilateral, sudden, painless vision loss, often associated with underlying systemic conditions like hypertension or diabetes.

• Ensure documentation specifies "bilateral" involvement and explicitly mentions "macular edema."
• Do not use this code if only one eye is affected or if macular edema is not present.
• Code any underlying systemic conditions (e.g., hypertension, diabetes) as additional diagnoses.