Retinal edema

This code signifies the presence of fluid accumulation within the layers of the retina, which can lead to blurred vision and visual distortion. It represents a non-specific swelling of the retina, often a symptom of underlying ocular or systemic conditions.

Apply this code when documentation explicitly states "retinal edema" without further specification of the cause or type (e.g., macular edema, cystoid macular edema). This diagnosis is supported by ophthalmoscopic examination, optical coherence tomography (OCT) findings, or fluorescein angiography demonstrating intraretinal fluid.

• Do not use this code if a more specific type of retinal edema (e.g., H35.32 for macular edema) is documented.
• Always code the underlying cause of the retinal edema first, if known and documented (e.g., diabetic retinopathy, retinal vein occlusion).
• Ensure the medical record clearly distinguishes between retinal edema and other retinal disorders like detachment or degeneration.