ICD-10 Code H16.449 – Deep vascularization of cornea, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.449 – Deep vascularization of cornea, unspecified eye
What it is
This code identifies abnormal blood vessel growth extending deep into the cornea, without laterality specified. It indicates a corneal vascular change rather than a separate infection or injury.
Clinical signs
Findings may include visible corneal vessels, corneal haze, and reduced corneal clarity. Clinical features vary; refer to documentation.
When to use this code
Use H16.449 when the record documents deep corneal vascularization and does not specify the right or left eye. It is appropriate when the provider describes corneal neovascularization or vascular ingrowth into the cornea. Check documentation if the note also identifies an underlying cause.
Do not use for
Do not use this code for superficial corneal vessels or for vascular changes limited to another part of the eye. If the eye laterality is documented, choose the more specific code.
Coding tip
Confirm that the provider documents deep corneal involvement and unspecified eye before assigning H16.449.