Unspecified corneal neovascularization, unspecified eye

This code represents the presence of new, abnormal blood vessel growth on the cornea, the transparent outer layer of the eye, without further specification regarding the type or cause of the neovascularization. This condition can impair vision and is often a response to corneal injury, inflammation, or oxygen deprivation.

Use this code when documentation indicates corneal neovascularization but lacks specific details about the type (e.g., superficial, deep, pannus) or the underlying etiology. It is appropriate when the laterality is also not specified in the medical record.

• Avoid using this code if the medical record specifies the type of corneal neovascularization (e.g., H16.41- for corneal pannus) or the underlying cause.
• Always strive for greater specificity regarding laterality (right, left, bilateral) if documented, using H16.401, H16.402, or H16.403.
• Code any underlying conditions causing the neovascularization (e.g., chemical burns, corneal ulcers) in addition to this code, following ICD-10-CM sequencing guidelines.