| H18329 | Folds in Descemet's membrane, unspecified eye |
| H1833 | Rupture in Descemet's membrane |
| H18331 | Rupture in Descemet's membrane, right eye |
| H18332 | Rupture in Descemet's membrane, left eye |
| H18333 | Rupture in Descemet's membrane, bilateral |
| H18339 | Rupture in Descemet's membrane, unspecified eye |
| H184 | Corneal degeneration |
| H1840 | Unspecified corneal degeneration |
| H1841 | Arcus senilis |
| H18411 | Arcus senilis, right eye |
| H18412 | Arcus senilis, left eye |
| H18413 | Arcus senilis, bilateral |
| H18419 | Arcus senilis, unspecified eye |
| H1842 | Band keratopathy |
| H18421 | Band keratopathy, right eye |
| H18422 | Band keratopathy, left eye |
| H18423 | Band keratopathy, bilateral |
| H18429 | Band keratopathy, unspecified eye |
| H1843 | Other calcerous corneal degeneration |
| H1844 | Keratomalacia |
| H18441 | Keratomalacia, right eye |
| H18442 | Keratomalacia, left eye |
| H18443 | Keratomalacia, bilateral |
| H18449 | Keratomalacia, unspecified eye |
| H1845 | Nodular corneal degeneration |
| H18451 | Nodular corneal degeneration, right eye |
| H18452 | Nodular corneal degeneration, left eye |
| H18453 | Nodular corneal degeneration, bilateral |
| H18459 | Nodular corneal degeneration, unspecified eye |
| H1846 | Peripheral corneal degeneration |
| H18461 | Peripheral corneal degeneration, right eye |
| H18462 | Peripheral corneal degeneration, left eye |
| H18463 | Peripheral corneal degeneration, bilateral |
| H18469 | Peripheral corneal degeneration, unspecified eye |
| H1849 | Other corneal degeneration |
| H185 | Hereditary corneal dystrophies |
| H1850 | Unspecified hereditary corneal dystrophies |
| H18501 | Unspecified hereditary corneal dystrophies, right eye |
| H18502 | Unspecified hereditary corneal dystrophies, left eye |
| H18503 | Unspecified hereditary corneal dystrophies, bilateral |
| H18509 | Unspecified hereditary corneal dystrophies, unspecified eye |
| H1851 | Endothelial corneal dystrophy |
| H18511 | Endothelial corneal dystrophy, right eye |
| H18512 | Endothelial corneal dystrophy, left eye |
| H18513 | Endothelial corneal dystrophy, bilateral |
| H18519 | Endothelial corneal dystrophy, unspecified eye |
| H1852 | Epithelial (juvenile) corneal dystrophy |
| H18521 | Epithelial (juvenile) corneal dystrophy, right eye |
| H18522 | Epithelial (juvenile) corneal dystrophy, left eye |
| H18523 | Epithelial (juvenile) corneal dystrophy, bilateral |