ICD-10-CM > H00-H59 > H30-H36 > H33 > H33.1 > H33.10 H33.10 Unspecified retinoschisis Non-Billable/Non-Specific Codes H33.101Unspecified retinoschisis, right eyeH33.102Unspecified retinoschisis, left eyeH33.103Unspecified retinoschisis, bilateralH33.109Unspecified retinoschisis, unspecified eye