ICD-10-CM > H00-H59 > H30-H36 > H33 > H33.3 > H33.32 H33.32 Round hole of retina without detachment Non-Billable/Non-Specific Codes H33.321Round hole, right eyeH33.322Round hole, left eyeH33.323Round hole, bilateralH33.329Round hole, unspecified eye