Nontraumatic subarachnoid hemorrhage (I60) ICD-10-CM
The I60 code range covers nontraumatic subarachnoid hemorrhage with 23 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code, if known, to indicate National Institutes of Health Stroke Scale NIHSS score R29.7
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- syphilitic ruptured cerebral aneurysm A52.05
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- sequelae of subarachnoid hemorrhage I69.0
Codes in the I60 Range 23 codes · 18 billable
- I60 Nontraumatic subarachnoid hemorrhageNon-billable
- I60.0 Nontraumatic subarachnoid hemorrhage from carotid siphon and bifurcationNon-billable
- 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
- I60.1 Nontraumatic subarachnoid hemorrhage from middle cerebral arteryNon-billable
- 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
- I60.3 Nontraumatic subarachnoid hemorrhage from posterior communicating arteryNon-billable
- 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
- I60.5 Nontraumatic subarachnoid hemorrhage from vertebral arteryNon-billable
- 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
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the I60 range.
Subarachnoid Hemorrhage
Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.
Subarachnoid Hemorrhage, Traumatic
Bleeding into the SUBARACHNOID SPACE due to CRANIOCEREBRAL TRAUMA. Minor hemorrhages may be asymptomatic; moderate to severe hemorrhages may be associated with INTRACRANIAL HYPERTENSION and VASOSPASM, INTRACRANIAL.
About the I60 Code Range
The ICD-10 code I60 and its subcategories identify cases of nontraumatic subarachnoid hemorrhage, which refers to bleeding in the space surrounding the brain not caused by external injury. These codes specify the exact artery involved, aiding clear diagnosis and treatment documentation.
This ICD-10 code group covers bleeding from arteries such as the carotid siphon (carotid artery rupture), middle cerebral artery, anterior communicating artery, posterior communicating artery, basilar artery, vertebral artery, and other intracranial arteries. These detailed codes help differentiate conditions like ruptured aneurysms and spontaneous hemorrhages in specific brain arteries, for example, the ruptured internal carotid-anterior communicating artery zone aneurysm (I60.00) or the spontaneous hemorrhage of subarachnoid space from left middle cerebral artery (I60.12). The section also includes unspecified or other nontraumatic subarachnoid hemorrhages, covering conditions often described as spontaneous subarachnoid hemorrhage or cryptogenic non-traumatic subarachnoid hemorrhage. Medical coders and healthcare providers rely on these precise codes to accurately report and manage this serious cerebrovascular condition.
Questions About This Page
How many billable codes are in the I60 range?
Of the 23 codes in this range, 18 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the I60 range classify?
The range classifies nontraumatic subarachnoid hemorrhage. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
