| I6612 | Occlusion and stenosis of left anterior cerebral artery |
| I6613 | Occlusion and stenosis of bilateral anterior cerebral arteries |
| I6619 | Occlusion and stenosis of unspecified anterior cerebral artery |
| I662 | Occlusion and stenosis of posterior cerebral artery |
| I6621 | Occlusion and stenosis of right posterior cerebral artery |
| I6622 | Occlusion and stenosis of left posterior cerebral artery |
| I6623 | Occlusion and stenosis of bilateral posterior cerebral arteries |
| I6629 | Occlusion and stenosis of unspecified posterior cerebral artery |
| I663 | Occlusion and stenosis of cerebellar arteries |
| I668 | Occlusion and stenosis of other cerebral arteries |
| I669 | Occlusion and stenosis of unspecified cerebral artery |
| I67 | Other cerebrovascular diseases |
| I670 | Dissection of cerebral arteries, nonruptured |
| I671 | Cerebral aneurysm, nonruptured |
| I672 | Cerebral atherosclerosis |
| I673 | Progressive vascular leukoencephalopathy |
| I674 | Hypertensive encephalopathy |
| I675 | Moyamoya disease |
| I676 | Nonpyogenic thrombosis of intracranial venous system |
| I677 | Cerebral arteritis, not elsewhere classified |
| I678 | Other specified cerebrovascular diseases |
| I6781 | Acute cerebrovascular insufficiency |
| I6782 | Cerebral ischemia |
| I6783 | Posterior reversible encephalopathy syndrome |
| I6784 | Cerebral vasospasm and vasoconstriction |
| I67841 | Reversible cerebrovascular vasoconstriction syndrome |
| I67848 | Other cerebrovascular vasospasm and vasoconstriction |
| I6785 | Hereditary cerebrovascular diseases |
| I67850 | Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy |
| I67858 | Other hereditary cerebrovascular disease |
| I6789 | Other cerebrovascular disease |
| I679 | Cerebrovascular disease, unspecified |
| I68 | Cerebrovascular disorders in diseases classified elsewhere |
| I680 | Cerebral amyloid angiopathy |
| I682 | Cerebral arteritis in other diseases classified elsewhere |
| I688 | Other cerebrovascular disorders in diseases classified elsewhere |
| I69 | Sequelae of cerebrovascular disease |
| I690 | Sequelae of nontraumatic subarachnoid hemorrhage |
| I6900 | Unspecified sequelae of nontraumatic subarachnoid hemorrhage Unspecified sequelae of nontraumatic subarachnoid hemorrhage |
| I6901 | Cognitive deficits following nontraumatic subarachnoid hemorrhage |
| I69010 | Attn and concentration deficit following ntrm subarach hemor Attention and concentration deficit following nontraumatic subarachnoid hemorrhage |
| I69011 | Memory deficit following nontraumatic subarachnoid hemorrhage |
| I69012 | Visuospatial deficit and spatial neglect following nontraumatic subarachnoid hemorrhage |
| I69013 | Psychomotor deficit following nontraumatic subarachnoid hemorrhage |
| I69014 | Frontal lobe and executive function deficit following nontraumatic subarachnoid hemorrhage |
| I69015 | Cognitive social or emotional deficit following nontraumatic subarachnoid hemorrhage |
| I69018 | Other symptoms and signs involving cognitive functions following nontraumatic subarachnoid hemorrhage |
| I69019 | Unspecified symptoms and signs involving cognitive functions following nontraumatic subarachnoid hemorrhage |
| I6902 | Speech and language deficits following nontraumatic subarachnoid hemorrhage |
| I69020 | Aphasia following nontraumatic subarachnoid hemorrhage |