ICD-10-CM > H00-H59 > H30-H36 > H35 > H35.4 > H35.42 H35.42 Microcystoid degeneration of retina Non-Billable/Non-Specific Codes H35.421Microcystoid degeneration of retina, right eyeH35.422Microcystoid degeneration of retina, left eyeH35.423Microcystoid degeneration of retina, bilateralH35.429Microcystoid degeneration of retina, unspecified eye