Idiopathic corneal edema, bilateral

This code signifies a non-inflammatory swelling of both corneas without an identifiable underlying cause. It results from an imbalance in corneal fluid regulation, leading to corneal thickening and potential visual impairment.

Apply this code when documentation clearly indicates bilateral corneal edema that is idiopathic in nature, meaning no specific etiology (e.g., trauma, infection, surgery, or other systemic disease) has been identified. This diagnosis is typically made after ruling out secondary causes.

• Ensure documentation explicitly states "idiopathic" and "bilateral" to support this specific code.
• Differentiate from other forms of corneal edema (e.g., bullous keratopathy, post-surgical edema) which have distinct codes.
• If a specific cause is identified, a more precise code for that etiology should be used instead.