ICD-10-CM > H00-H59 > H40-H42 > H40 > H40.1 > H40.13 > H40.131 H40.131 Pigmentary glaucoma, right eye Non-Billable/Non-Specific Codes H40.1310..., stage unspecifiedH40.1311..., mild stageH40.1312..., moderate stageH40.1313..., severe stageH40.1314..., indeterminate stage