I60.6 Nontraumatic subarachnoid hemorrhage from other intracranial arteries

The ICD-10-CM code for Nontraumatic subarachnoid hemorrhage from other intracranial arteries is I60.6 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

9: Diseases of the circulatory system (I00-I99)

Section

I60-I69: Cerebrovascular diseases (I60-I69)

Category I60

23 codes (18 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to I60.6:

• Rupture, ruptured › circle of Willis
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › circle of Willis › ruptured
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › circle of Willis › congenital › ruptured
• Hemorrhage, hemorrhagic (concealed) › intracranial (nontraumatic) › subarachnoid (nontraumatic) (from) › intracranial (cerebral) artery › specified artery NEC

U.S. Hospital Utilization

• An estimated 1,480 U.S. inpatient stays in 2023 included I60.6 among the documented diagnoses.
• 1,095 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

HTN cerebrovascular disease: code I60-I69 first, then HTN code

For hypertensive cerebrovascular disease, first assign the appropriate code from categories I60-I69, followed by the appropriate hypertension code.

Use I69 for sequelae due to I60-I67 conditions; timing of deficits

Category I69 is used to indicate conditions classifiable to categories I60- I67 as the causes of sequela (neurologic deficits), themselves classified elsewhere. These “late effects” include neurologic deficits that persist after initial onset of conditions classifiable to categories I60-I67. The neurologic deficits caused by cerebrovascular disease may be present from the onset or may arise at any time after the onset of the condition classifiable to categories I60-I67.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)