ICD-10-CM > H00-H59 > H30-H36 > H33 > H33.3 > H33.31 H33.31 Horseshoe tear of retina without detachment Non-Billable/Non-Specific Applicable To Operculum of retina without detachment Codes H33.311Horseshoe tear of retina without detachment, right eyeH33.312Horseshoe tear of retina without detachment, left eyeH33.313Horseshoe tear of retina without detachment, bilateralH33.319Horseshoe tear of retina without detachment, unspecified eye