H16.30 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
H16.301
Unspecified interstitial keratitis, right eye
Billable
10
H16.302
Unspecified interstitial keratitis, left eye
Billable
10
H16.303
Unspecified interstitial keratitis, bilateral
Billable
10
H16.309
Unspecified interstitial keratitis, unspecified eye
Billable