ICD-10-CM > H00-H59 > H46-H47 > H47 > H47.0 > H47.01 H47.01 Ischemic optic neuropathy Non-Billable/Non-Specific Codes H47.011Ischemic optic neuropathy, right eyeH47.012Ischemic optic neuropathy, left eyeH47.013Ischemic optic neuropathy, bilateralH47.019Ischemic optic neuropathy, unspecified eye