| H16.30 | Unspecified interstitial keratitis | NON-BILLABLE CODE |
| H16.301 | Unspecified interstitial keratitis, right eye | BILLABLE CODE |
| H16.302 | Unspecified interstitial keratitis, left eye | BILLABLE CODE |
| H16.303 | Unspecified interstitial keratitis, bilateral | BILLABLE CODE |
| H16.309 | Unspecified interstitial keratitis, unspecified eye | BILLABLE CODE |
| H16.31 | Corneal abscess | NON-BILLABLE CODE |
| H16.311 | Corneal abscess, right eye | BILLABLE CODE |
| H16.312 | Corneal abscess, left eye | BILLABLE CODE |
| H16.313 | Corneal abscess, bilateral | BILLABLE CODE |
| H16.319 | Corneal abscess, unspecified eye | BILLABLE CODE |
| H16.32 | Diffuse interstitial keratitis | NON-BILLABLE CODE |
| H16.321 | Diffuse interstitial keratitis, right eye | BILLABLE CODE |
| H16.322 | Diffuse interstitial keratitis, left eye | BILLABLE CODE |
| H16.323 | Diffuse interstitial keratitis, bilateral | BILLABLE CODE |
| H16.329 | Diffuse interstitial keratitis, unspecified eye | BILLABLE CODE |
| H16.33 | Sclerosing keratitis | NON-BILLABLE CODE |
| H16.331 | Sclerosing keratitis, right eye | BILLABLE CODE |
| H16.332 | Sclerosing keratitis, left eye | BILLABLE CODE |
| H16.333 | Sclerosing keratitis, bilateral | BILLABLE CODE |
| H16.339 | Sclerosing keratitis, unspecified eye | BILLABLE CODE |
| H16.39 | Other interstitial and deep keratitis | NON-BILLABLE CODE |
| H16.391 | Other interstitial and deep keratitis, right eye | BILLABLE CODE |
| H16.392 | Other interstitial and deep keratitis, left eye | BILLABLE CODE |
| H16.393 | Other interstitial and deep keratitis, bilateral | BILLABLE CODE |
| H16.399 | Other interstitial and deep keratitis, unspecified eye | BILLABLE CODE |
