ICD-10 Code H16.401 – Unspecified corneal neovascularization, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.401 – Unspecified corneal neovascularization, right eye
What it is
This code identifies abnormal new blood vessel growth in the cornea of the right eye when the specific cause is not documented. Use it when the record confirms corneal neovascularization but does not further classify it.
Clinical signs
Findings may include visible vessels extending into the cornea, corneal haze, or reduced transparency. Clinical features vary; refer to documentation.
When to use this code
Use H16.401 when the provider documents corneal neovascularization in the right eye and does not specify a more detailed cause or type. It is appropriate for ophthalmology notes, exam findings, or problem lists that clearly identify the right eye. If the documentation names a different corneal disorder, code that condition instead.
Do not use for
Do not use this code for neovascularization of the left eye, both eyes, or an unspecified eye. Do not use it when the chart documents a more specific corneal diagnosis; check documentation.
Coding tip
Always confirm laterality and whether the provider described a specific underlying corneal condition before assigning H16.401.