Ischemic optic neuropathy icd 10 code July 8, 2019 16 32 64 128 Anterior ischemic optic neuropathy icd 10 code Non arteritic anterior ischemic optic neuropathy icd 10 code Icd 10 code for ischemic optic neuropathy left eye Icd 10 code for ischemic optic neuropathy right eye Icd 10 code for ischemic optic neuropathy unspecified Icd 10 optic neuropathy