High grade left carotid stenosis icd 10 July 8, 2019 16 32 64 128 High grade left carotid artery stenosis icd 10 High grade left internal carotid artery stenosis icd 10 Left carotid stenosis icd 10 Right carotid stenosis icd 10 Right carotid artery stenosis icd 10 Carotid stenosis icd 9