H16.13 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
H16.131
Photokeratitis, right eye
Billable
10
H16.132
Photokeratitis, left eye
Billable
10
H16.133
Photokeratitis, bilateral
Billable
10
H16.139
Photokeratitis, unspecified eye
Billable