ICD-10-CM > H00-H59 > H15-H22 > H16 > H16.4 > H16.40 H16.40 Unspecified corneal neovascularization Non-Billable/Non-Specific Codes H16.401Unspecified corneal neovascularization, right eyeH16.402Unspecified corneal neovascularization, left eyeH16.403Unspecified corneal neovascularization, bilateralH16.409Unspecified corneal neovascularization, unspecified eye