All ICD10 Codes
I60Not billable, use a more specific code below

Nontraumatic subarachnoid hemorrhage

In Cerebrovascular diseases (I60-I69), chapter 9: Diseases of the Circulatory System

18 billable codes under I60: all are an MCC; all map to HCC 248 (Intracranial Hemorrhage).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Excludes1: not coded here, use a different code

  • syphilitic ruptured cerebral aneurysm (A52.05)

Excludes2: not included here, code separately if applicable

  • sequelae of subarachnoid hemorrhage (I69.0-)

Use additional code: add a second code for this, listed after this one

  • code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)

Also applies, from Cerebrovascular diseases (I60-I69)

These notes sit on I60-I69 and apply to every code under it, including I60.

Excludes1: not coded here, use a different code

  • traumatic intracranial hemorrhage (S06.-)

Use additional code: add a second code for this, listed after this one

  • code to identify presence of:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • hypertension (I10-I1A)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers hypertension with heart and kidney disease, coronary artery disease with angina, perioperative stroke, cerebrovascular sequelae, and acute myocardial infarction types and timing.

Read Section I.C.9 (page 50)

All codes under I60

I60 can't be used on a claim. Pick a billable code below; grey headings group them.

I60 MS-DRGs

As the principal diagnosis, all 18 billable codes under I60 group to these 10 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to I60

Notes on these codes point to I60.

  • G31.84 Excludes1: cerebrovascular diseases (I60-I69)
  • G46 Code First: underlying cerebrovascular disease (I60-I69)
  • I10 Excludes2: essential (primary) hypertension involving vessels of brain (I60-I69)
  • I15 Excludes2: secondary hypertension involving vessels of brain (I60-I69)
  • I16.1 Code Also: cerebral hemorrhage (I60.-. I61.-, I62.-)
  • R29.7 Code First: the type of cerebral infarction (I60.-, I61.-, I62.-, I63.-)
  • Z82.3 Includes: Conditions classifiable to I60-I64

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Hemorrhagic Stroke

A stroke happens when there is a loss of blood flow to part of the brain. Your brain cells cannot get the oxygen and nutrients they need from blood, and they start to die within a few minutes. This can cause lasting brain damage, long-term disability, or even death.

Read more about hemorrhagic stroke on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.