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ICD-10-CM category I60: Nontraumatic subarachnoid hemorrhage

Category I60 is a heading in chapter 9 (Diseases of the circulatory system (I00-I99)), section Cerebrovascular diseases (I60-I69). It is not billable; report one of the 18 complete codes below.

Notes that apply to every I60 code

Excludes1 (never coded together)
  • syphilitic ruptured cerebral aneurysm (A52.05)
Excludes2 (not part of this condition, may be coded together)
  • sequelae of subarachnoid hemorrhage (I69.0-)
Use additional code
  • code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)

Billable codes in I60

Billable FY2027 ICD-10-CM codes in category I60
CodeDescription
I60.00Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation
I60.01Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation
I60.02Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation
I60.10Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery
I60.11Nontraumatic subarachnoid hemorrhage from right middle cerebral artery
I60.12Nontraumatic subarachnoid hemorrhage from left middle cerebral artery
I60.2Nontraumatic subarachnoid hemorrhage from anterior communicating artery
I60.30Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery
I60.31Nontraumatic subarachnoid hemorrhage from right posterior communicating artery
I60.32Nontraumatic subarachnoid hemorrhage from left posterior communicating artery
I60.4Nontraumatic subarachnoid hemorrhage from basilar artery
I60.50Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery
I60.51Nontraumatic subarachnoid hemorrhage from right vertebral artery
I60.52Nontraumatic subarachnoid hemorrhage from left vertebral artery
I60.6Nontraumatic subarachnoid hemorrhage from other intracranial arteries
I60.7Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery
I60.8Other nontraumatic subarachnoid hemorrhage
I60.9Nontraumatic subarachnoid hemorrhage, unspecified

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.