| ICD-10 Code | Description |
| I60.00 | Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation |
| I60.01 | Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation |
| I60.02 | Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation |
| I60.10 | Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery |
| I60.11 | Nontraumatic subarachnoid hemorrhage from right middle cerebral artery |
| I60.12 | Nontraumatic subarachnoid hemorrhage from left middle cerebral artery |
| I60.2 | Nontraumatic subarachnoid hemorrhage from anterior communicating artery |
| I60.30 | Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery |
| I60.31 | Nontraumatic subarachnoid hemorrhage from right posterior communicating artery |
| I60.32 | Nontraumatic subarachnoid hemorrhage from left posterior communicating artery |
| I60.4 | Nontraumatic subarachnoid hemorrhage from basilar artery |
| I60.50 | Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery |
| I60.51 | Nontraumatic subarachnoid hemorrhage from right vertebral artery |
| I60.52 | Nontraumatic subarachnoid hemorrhage from left vertebral artery |
| I60.6 | Nontraumatic subarachnoid hemorrhage from other intracranial arteries |
| I60.7 | Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery |
| I60.8 | Other nontraumatic subarachnoid hemorrhage |
| I60.9 | Nontraumatic subarachnoid hemorrhage, unspecified |
