ICD-10-CM > H00-H59 > H30-H36 > H34 > H34.2 > H34.23 H34.23 Retinal artery branch occlusion Non-Billable/Non-Specific Codes H34.231Retinal artery branch occlusion, right eyeH34.232Retinal artery branch occlusion, left eyeH34.233Retinal artery branch occlusion, bilateralH34.239Retinal artery branch occlusion, unspecified eye