Pannus (corneal), right eye

This code signifies the presence of pannus affecting the right cornea. Pannus is characterized by the ingrowth of fibrovascular tissue onto the corneal surface, often associated with chronic inflammation or irritation. This vascularization can impair vision and lead to corneal opacification.

Use this code when documentation explicitly states "pannus" of the right cornea. This condition is frequently seen in chronic keratitis, trachoma, or contact lens overwear. Supporting documentation should include ophthalmological examination findings detailing the presence and location of the pannus.

• Ensure laterality is clearly documented; this code is specific to the right eye.
• Distinguish from other corneal opacities or scars; pannus involves vascularization.
• Code any underlying cause of the pannus, such as trachoma (A71.-) or chronic keratitis (H16.2-), as a secondary diagnosis.