Deep vascularization of cornea, left eye

This code signifies the presence of new, abnormal blood vessel growth extending deeply into the corneal tissue of the left eye. This neovascularization can impair vision and is often a sign of chronic inflammation, infection, or trauma to the cornea.

Use this code when documentation explicitly states "deep vascularization of the cornea" affecting the left eye. It is typically seen in conditions like chronic keratitis, corneal ulcers, or after corneal transplants. Supporting documentation should include ophthalmological exam findings detailing the depth and location of the vascularization.

• Differentiate from superficial vascularization, which involves vessels only in the anterior layers of the cornea.
• Ensure laterality is clearly documented (left eye in this case).
• Always code the underlying cause of the corneal vascularization if known and documented.