| H1601 | Central corneal ulcer |
| H16011 | Central corneal ulcer, right eye |
| H16012 | Central corneal ulcer, left eye |
| H16013 | Central corneal ulcer, bilateral |
| H16019 | Central corneal ulcer, unspecified eye |
| H1602 | Ring corneal ulcer |
| H16021 | Ring corneal ulcer, right eye |
| H16022 | Ring corneal ulcer, left eye |
| H16023 | Ring corneal ulcer, bilateral |
| H16029 | Ring corneal ulcer, unspecified eye |
| H1603 | Corneal ulcer with hypopyon |
| H16031 | Corneal ulcer with hypopyon, right eye |
| H16032 | Corneal ulcer with hypopyon, left eye |
| H16033 | Corneal ulcer with hypopyon, bilateral |
| H16039 | Corneal ulcer with hypopyon, unspecified eye |
| H1604 | Marginal corneal ulcer |
| H16041 | Marginal corneal ulcer, right eye |
| H16042 | Marginal corneal ulcer, left eye |
| H16043 | Marginal corneal ulcer, bilateral |
| H16049 | Marginal corneal ulcer, unspecified eye |
| H1605 | Mooren's corneal ulcer |
| H16051 | Mooren's corneal ulcer, right eye |
| H16052 | Mooren's corneal ulcer, left eye |
| H16053 | Mooren's corneal ulcer, bilateral |
| H16059 | Mooren's corneal ulcer, unspecified eye |
| H1606 | Mycotic corneal ulcer |
| H16061 | Mycotic corneal ulcer, right eye |
| H16062 | Mycotic corneal ulcer, left eye |
| H16063 | Mycotic corneal ulcer, bilateral |
| H16069 | Mycotic corneal ulcer, unspecified eye |
| H1607 | Perforated corneal ulcer |
| H16071 | Perforated corneal ulcer, right eye |
| H16072 | Perforated corneal ulcer, left eye |
| H16073 | Perforated corneal ulcer, bilateral |
| H16079 | Perforated corneal ulcer, unspecified eye |
| H161 | Other and unspecified superficial keratitis without conjunctivitis |
| H1610 | Unspecified superficial keratitis |
| H16101 | Unspecified superficial keratitis, right eye |
| H16102 | Unspecified superficial keratitis, left eye |
| H16103 | Unspecified superficial keratitis, bilateral |
| H16109 | Unspecified superficial keratitis, unspecified eye |
| H1611 | Macular keratitis |
| H16111 | Macular keratitis, right eye |
| H16112 | Macular keratitis, left eye |
| H16113 | Macular keratitis, bilateral |
| H16119 | Macular keratitis, unspecified eye |
| H1612 | Filamentary keratitis |
| H16121 | Filamentary keratitis, right eye |
| H16122 | Filamentary keratitis, left eye |
| H16123 | Filamentary keratitis, bilateral |