ICD-10-CM > H00-H59 > H30-H36 > H34 > H34.2 > H34.21 H34.21 Partial retinal artery occlusion Non-Billable/Non-Specific Applicable To Hollenhorst's plaqueRetinal microembolism Codes H34.211Partial retinal artery occlusion, right eyeH34.212Partial retinal artery occlusion, left eyeH34.213Partial retinal artery occlusion, bilateralH34.219Partial retinal artery occlusion, unspecified eye