| H40 | Glaucoma |
| H40.0 | Glaucoma suspect |
| H40.00 | Preglaucoma, unspecified |
| H40.001 | Preglaucoma, unspecified, right eye |
| H40.002 | Preglaucoma, unspecified, left eye |
| H40.003 | Preglaucoma, unspecified, bilateral |
| H40.009 | Preglaucoma, unspecified, unspecified eye |
| H40.01 | Open angle with borderline findings, low risk |
| H40.011 | Open angle with borderline findings, low risk, right eye |
| H40.012 | Open angle with borderline findings, low risk, left eye |
| H40.013 | Open angle with borderline findings, low risk, bilateral |
| H40.019 | Open angle with borderline findings, low risk, unspecified eye |
| H40.02 | Open angle with borderline findings, high risk |
| H40.021 | Open angle with borderline findings, high risk, right eye |
| H40.022 | Open angle with borderline findings, high risk, left eye |
| H40.023 | Open angle with borderline findings, high risk, bilateral |
| H40.029 | Open angle with borderline findings, high risk, unspecified eye |
| H40.03 | Anatomical narrow angle |
| H40.031 | Anatomical narrow angle, right eye |
| H40.032 | Anatomical narrow angle, left eye |
| H40.033 | Anatomical narrow angle, bilateral |
| H40.039 | Anatomical narrow angle, unspecified eye |
| H40.04 | Steroid responder |
| H40.041 | Steroid responder, right eye |
| H40.042 | Steroid responder, left eye |
| H40.043 | Steroid responder, bilateral |
| H40.049 | Steroid responder, unspecified eye |
| H40.05 | Ocular hypertension |
| H40.051 | Ocular hypertension, right eye |
| H40.052 | Ocular hypertension, left eye |
| H40.053 | Ocular hypertension, bilateral |
| H40.059 | Ocular hypertension, unspecified eye |
| H40.06 | Primary angle closure without glaucoma damage |
| H40.061 | Primary angle closure without glaucoma damage, right eye |
| H40.062 | Primary angle closure without glaucoma damage, left eye |
| H40.063 | Primary angle closure without glaucoma damage, bilateral |
| H40.069 | Primary angle closure without glaucoma damage, unspecified eye |
| H40.1 | Open-angle glaucoma |
| H40.10 | Unspecified open-angle glaucoma |
| H40.11 | Primary open-angle glaucoma |
| H40.12 | Low-tension glaucoma |
| H40.121 | Low-tension glaucoma, right eye |
| H40.122 | Low-tension glaucoma, left eye |
| H40.123 | Low-tension glaucoma, bilateral |
| H40.129 | Low-tension glaucoma, unspecified eye |
| H40.13 | Pigmentary glaucoma |
| H40.131 | Pigmentary glaucoma, right eye |
| H40.132 | Pigmentary glaucoma, left eye |
| H40.133 | Pigmentary glaucoma, bilateral |
| H40.139 | Pigmentary glaucoma, unspecified eye |
| H40.14 | Capsular glaucoma with pseudoexfoliation of lens |
| H40.141 | Capsular glaucoma with pseudoexfoliation of lens, right eye |
| H40.142 | Capsular glaucoma with pseudoexfoliation of lens, left eye |
| H40.143 | Capsular glaucoma with pseudoexfoliation of lens, bilateral |
| H40.149 | Capsular glaucoma with pseudoexfoliation of lens, unspecified eye |
| H40.15 | Residual stage of open-angle glaucoma |
| H40.151 | Residual stage of open-angle glaucoma, right eye |
| H40.152 | Residual stage of open-angle glaucoma, left eye |
| H40.153 | Residual stage of open-angle glaucoma, bilateral |
| H40.159 | Residual stage of open-angle glaucoma, unspecified eye |
| H40.2 | Primary angle-closure glaucoma |
| H40.20 | Unspecified primary angle-closure glaucoma |
| H40.21 | Acute angle-closure glaucoma |
| H40.211 | Acute angle-closure glaucoma, right eye |
| H40.212 | Acute angle-closure glaucoma, left eye |
| H40.213 | Acute angle-closure glaucoma, bilateral |
| H40.219 | Acute angle-closure glaucoma, unspecified eye |
| H40.22 | Chronic angle-closure glaucoma |
| H40.221 | Chronic angle-closure glaucoma, right eye |
| H40.222 | Chronic angle-closure glaucoma, left eye |
| H40.223 | Chronic angle-closure glaucoma, bilateral |
| H40.229 | Chronic angle-closure glaucoma, unspecified eye |
| H40.23 | Intermittent angle-closure glaucoma |
| H40.231 | Intermittent angle-closure glaucoma, right eye |
| H40.232 | Intermittent angle-closure glaucoma, left eye |
| H40.233 | Intermittent angle-closure glaucoma, bilateral |
| H40.239 | Intermittent angle-closure glaucoma, unspecified eye |
| H40.24 | Residual stage of angle-closure glaucoma |
| H40.241 | Residual stage of angle-closure glaucoma, right eye |
| H40.242 | Residual stage of angle-closure glaucoma, left eye |
| H40.243 | Residual stage of angle-closure glaucoma, bilateral |
| H40.249 | Residual stage of angle-closure glaucoma, unspecified eye |
| H40.3 | Glaucoma secondary to eye trauma |
| H40.30 | Glaucoma secondary to eye trauma, unspecified eye |
| H40.31 | Glaucoma secondary to eye trauma, right eye |
| H40.32 | Glaucoma secondary to eye trauma, left eye |
| H40.33 | Glaucoma secondary to eye trauma, bilateral |
| H40.4 | Glaucoma secondary to eye inflammation |
| H40.40 | Glaucoma secondary to eye inflammation, unspecified eye |
| H40.41 | Glaucoma secondary to eye inflammation, right eye |
| H40.42 | Glaucoma secondary to eye inflammation, left eye |
| H40.43 | Glaucoma secondary to eye inflammation, bilateral |
| H40.5 | Glaucoma secondary to other eye disorders |
| H40.50 | Glaucoma secondary to other eye disorders, unspecified eye |
| H40.51 | Glaucoma secondary to other eye disorders, right eye |
| H40.52 | Glaucoma secondary to other eye disorders, left eye |
| H40.53 | Glaucoma secondary to other eye disorders, bilateral |
| H40.6 | Glaucoma secondary to drugs |
| H40.60 | Glaucoma secondary to drugs, unspecified eye |
| H40.61 | Glaucoma secondary to drugs, right eye |
| H40.62 | Glaucoma secondary to drugs, left eye |
| H40.63 | Glaucoma secondary to drugs, bilateral |
| H40.8 | Other glaucoma |
| H40.81 | Glaucoma with increased episcleral venous pressure |
| H40.811 | Glaucoma with increased episcleral venous pressure, right eye |
| H40.812 | Glaucoma with increased episcleral venous pressure, left eye |
| H40.813 | Glaucoma with increased episcleral venous pressure, bilateral |
| H40.819 | Glaucoma with increased episcleral venous pressure, unspecified eye |
| H40.82 | Hypersecretion glaucoma |
| H40.821 | Hypersecretion glaucoma, right eye |
| H40.822 | Hypersecretion glaucoma, left eye |
| H40.823 | Hypersecretion glaucoma, bilateral |
| H40.829 | Hypersecretion glaucoma, unspecified eye |
| H40.83 | Aqueous misdirection |
| H40.831 | Aqueous misdirection, right eye |
| H40.832 | Aqueous misdirection, left eye |
| H40.833 | Aqueous misdirection, bilateral |
| H40.839 | Aqueous misdirection, unspecified eye |
| H40.89 | Other specified glaucoma |
| H40.9 | Unspecified glaucoma |
| H42 | Glaucoma in diseases classified elsewhere |