Mca m2 occlusion icd 10 July 8, 2019 16 32 64 128 Left mca m2 occlusion icd 10 Right mca m2 occlusion icd 10 R mca m2 occlusion icd 10 M2 occlusion icd 10 M1 occlusion icd 10 Mca distribution infarct icd 10 M23.9 icd 10