2027 ICD-10-CM Diagnosis Code I60Nontraumatic subarachnoid hemorrhage

ICD-10-CM Codes›I00–I99›I60-I69›I60

ICD-10-CM I60
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I60 is a non-billable ICD-10-CM category code for nontraumatic subarachnoid hemorrhage, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I60.00, I60.01, I60.02, and I60.10.

Code Identity

ICD-10-CM Code
I60
Billable Status
No — Non-Billable Category
Code Describes
Nontraumatic subarachnoid hemorrhage
Short Description
Nontraumatic subarachnoid hemorrhage
Same as the full description in the CMS dataset.
Chapter
I60-I69
Cerebrovascular diseases

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI60-I69Cerebrovascular diseases
CategoryI60Nontraumatic subarachnoid hemorrhage
This CodeI60Nontraumatic subarachnoid hemorrhage

Specific Coding for Nontraumatic subarachnoid hemorrhageOverview

Non-specific codes like I60 require more characters. Use one of these billable codes instead:

  • I60.0 for Nontraumatic subarachnoid hemorrhage from carotid siphon and bifurcation

  • Use I60.00 for Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation

  • Use I60.01 for Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation

  • Use I60.02 for Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation

  • I60.1 for Nontraumatic subarachnoid hemorrhage from middle cerebral artery

  • Use I60.10 for Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery

  • Use I60.11 for Nontraumatic subarachnoid hemorrhage from right middle cerebral artery

  • Use I60.12 for Nontraumatic subarachnoid hemorrhage from left middle cerebral artery

  • Use I60.2 for Nontraumatic subarachnoid hemorrhage from anterior communicating artery

  • I60.3 for Nontraumatic subarachnoid hemorrhage from posterior communicating artery

  • Use I60.30 for Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery

  • Use I60.31 for Nontraumatic subarachnoid hemorrhage from right posterior communicating artery

  • Use I60.32 for Nontraumatic subarachnoid hemorrhage from left posterior communicating artery

  • Use I60.4 for Nontraumatic subarachnoid hemorrhage from basilar artery

  • I60.5 for Nontraumatic subarachnoid hemorrhage from vertebral artery

  • Use I60.50 for Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery

  • Use I60.51 for Nontraumatic subarachnoid hemorrhage from right vertebral artery

  • Use I60.52 for Nontraumatic subarachnoid hemorrhage from left vertebral artery

  • Use I60.6 for Nontraumatic subarachnoid hemorrhage from other intracranial arteries

  • Use I60.7 for Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery

  • Use I60.8 for Other nontraumatic subarachnoid hemorrhage

  • Use I60.9 for Nontraumatic subarachnoid hemorrhage, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I60: its own notes plus those printed at block I60-I69 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On I60 itself
  • syphilitic ruptured cerebral aneurysm (A52.05)
From Block I60-I69 Cerebrovascular diseases applies to 410 codes
  • traumatic intracranial hemorrhage (S06.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On I60 itself
  • sequelae of subarachnoid hemorrhage (I69.0-)
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

On I60 itself
  • code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)
From Block I60-I69 Cerebrovascular diseases applies to 410 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I60, its category, or a range that includes it.

Code First 1

These codes say to code first a condition named in the note, and I60 is one of the conditions named.

  • R29.7 National Institutes of Health Stroke Scale (NIHSS) score
    the type of cerebral infarction (I60.-, I61.-, I62.-, I63.-)

Code Also 1

These codes say I60 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • I16.1 Hypertensive emergency
    cerebral hemorrhage (I60.-. I61.-, I62.-)

Patient EducationClinical

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.

The full article covers:

  • What is a hemorrhagic stroke?
  • What are the types of hemorrhagic stroke?
  • What causes hemorrhagic stroke?
  • What are the symptoms of a hemorrhagic stroke?
  • How is a hemorrhagic stroke diagnosed?
  • How is hemorrhagic stroke treated?
  • Can a hemorrhagic stroke be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I60Overview

What is the ICD-10 code for nontraumatic subarachnoid hemorrhage?

I60 is the ICD-10-CM category for nontraumatic subarachnoid hemorrhage, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is I60 (Nontraumatic subarachnoid hemorrhage) a billable code?

No. This is a category header that groups the codes for nontraumatic subarachnoid hemorrhage, and headers cannot be submitted on claims. Claims for nontraumatic subarachnoid hemorrhage need a more specific code from this category, such as I60.00, I60.01, and I60.02.

Can I60 be reported with A52.05?

Not as a rule. The Excludes1 note on I60 lists "syphilitic ruptured cerebral aneurysm (A52.05)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does I60 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-). The additional code is reported after I60.