H16.40 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
H16.401
Unspecified corneal neovascularization, right eye
Billable
10
H16.402
Unspecified corneal neovascularization, left eye
Billable
10
H16.403
Unspecified corneal neovascularization, bilateral
Billable
10
H16.409
Unspecified corneal neovascularization, unspecified eye
Billable