| H18033 | Corneal deposits in metabolic disorders, bilateral |
| H18039 | Corneal deposits in metabolic disorders, unspecified eye |
| H1804 | Kayser-Fleischer ring |
| H18041 | Kayser-Fleischer ring, right eye |
| H18042 | Kayser-Fleischer ring, left eye |
| H18043 | Kayser-Fleischer ring, bilateral |
| H18049 | Kayser-Fleischer ring, unspecified eye |
| H1805 | Posterior corneal pigmentations |
| H18051 | Posterior corneal pigmentations, right eye |
| H18052 | Posterior corneal pigmentations, left eye |
| H18053 | Posterior corneal pigmentations, bilateral |
| H18059 | Posterior corneal pigmentations, unspecified eye |
| H1806 | Stromal corneal pigmentations |
| H18061 | Stromal corneal pigmentations, right eye |
| H18062 | Stromal corneal pigmentations, left eye |
| H18063 | Stromal corneal pigmentations, bilateral |
| H18069 | Stromal corneal pigmentations, unspecified eye |
| H181 | Bullous keratopathy |
| H1810 | Bullous keratopathy, unspecified eye |
| H1811 | Bullous keratopathy, right eye |
| H1812 | Bullous keratopathy, left eye |
| H1813 | Bullous keratopathy, bilateral |
| H182 | Other and unspecified corneal edema |
| H1820 | Unspecified corneal edema |
| H1821 | Corneal edema secondary to contact lens |
| H18211 | Corneal edema secondary to contact lens, right eye |
| H18212 | Corneal edema secondary to contact lens, left eye |
| H18213 | Corneal edema secondary to contact lens, bilateral |
| H18219 | Corneal edema secondary to contact lens, unspecified eye |
| H1822 | Idiopathic corneal edema |
| H18221 | Idiopathic corneal edema, right eye |
| H18222 | Idiopathic corneal edema, left eye |
| H18223 | Idiopathic corneal edema, bilateral |
| H18229 | Idiopathic corneal edema, unspecified eye |
| H1823 | Secondary corneal edema |
| H18231 | Secondary corneal edema, right eye |
| H18232 | Secondary corneal edema, left eye |
| H18233 | Secondary corneal edema, bilateral |
| H18239 | Secondary corneal edema, unspecified eye |
| H183 | Changes of corneal membranes |
| H1830 | Unspecified corneal membrane change |
| H1831 | Folds and rupture in Bowman's membrane |
| H18311 | Folds and rupture in Bowman's membrane, right eye |
| H18312 | Folds and rupture in Bowman's membrane, left eye |
| H18313 | Folds and rupture in Bowman's membrane, bilateral |
| H18319 | Folds and rupture in Bowman's membrane, unspecified eye |
| H1832 | Folds in Descemet's membrane |
| H18321 | Folds in Descemet's membrane, right eye |
| H18322 | Folds in Descemet's membrane, left eye |
| H18323 | Folds in Descemet's membrane, bilateral |