ICD-10-CM > H00-H59 > H40-H42 > H40 > H40.1 > H40.15 H40.15 Residual stage of open-angle glaucoma Non-Billable/Non-Specific Codes H40.151Residual stage of open-angle glaucoma, right eyeH40.152Residual stage of open-angle glaucoma, left eyeH40.153Residual stage of open-angle glaucoma, bilateralH40.159Residual stage of open-angle glaucoma, unspecified eye