ICD-10-CM > I00-I99 > I60-I69 > I60 > I60.5 I60.5 Nontraumatic subarachnoid hemorrhage from vertebral artery Non-Billable/Non-Specific Codes I60.50Nontraumatic subarachnoid hemorrhage from unspecified vertebral arteryI60.51Nontraumatic subarachnoid hemorrhage from right vertebral arteryI60.52Nontraumatic subarachnoid hemorrhage from left vertebral artery