Venous engorgement, left eye

This code signifies an abnormal dilation and congestion of the veins within the left eye, indicating impaired venous outflow. This can lead to increased intraocular pressure, retinal edema, and visual disturbances. It represents a specific type of vascular abnormality affecting the ocular structures.

Apply this code when documentation explicitly states venous engorgement or congestion affecting the left eye. This diagnosis is typically supported by ophthalmoscopic examination findings, retinal imaging (e.g., OCT, fluorescein angiography), or other diagnostic tests confirming venous stasis or dilation.

• Ensure laterality is clearly documented as "left eye" to support this specific code.
• Distinguish from arterial abnormalities; this code is strictly for venous involvement.
• Consider coding any underlying systemic conditions (e.g., hypertension, diabetes) or local causes (e.g., orbital tumor) that may contribute to the venous engorgement.