ICD-10-CM > H00-H59 > H40-H42 > H40 > H40.1 > H40.11 H40.11 Primary open-angle glaucoma Non-Billable/Non-Specific Applicable To Chronic simple glaucoma Codes H40.111Primary open-angle glaucoma, right eyeH40.1110..., stage unspecifiedH40.1111..., mild stageH40.1112..., moderate stageH40.1113..., severe stageH40.1114..., indeterminate stageH40.112Primary open-angle glaucoma, left eyeH40.1120..., stage unspecifiedH40.1121..., mild stageH40.1122..., moderate stageH40.1123..., severe stageH40.1124..., indeterminate stageH40.113Primary open-angle glaucoma, bilateralH40.1130..., stage unspecifiedH40.1131..., mild stageH40.1132..., moderate stageH40.1133..., severe stageH40.1134..., indeterminate stageH40.119Primary open-angle glaucoma, unspecified eyeH40.1190..., stage unspecifiedH40.1191..., mild stageH40.1192..., moderate stageH40.1193..., severe stageH40.1194..., indeterminate stage