2026 ICD-10-CM Diagnosis Code I60.31Nontraumatic subarachnoid hemorrhage from right posterior communicating artery

ICD-10-CM Codes›I00–I99›I60-I69›I60

ICD-10-CM I60.31
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I60.31 is a billable ICD-10-CM diagnosis code for nontraumatic subarachnoid hemorrhage from right posterior communicating artery. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as aneurysm of posterior communicating artery. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acute hemorrhagic cerebrovascular disease.

Code Identity

ICD-10-CM Code
I60.31
Billable Status
Yes — Valid for Submission
Code Describes
Nontraumatic subarachnoid hemorrhage from right posterior communicating artery
Short Description
Ntrm subarach hemor from right post communicating artery
Parent Code
I60.3
Nontraumatic subarachnoid hemorrhage from posterior communicating artery

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI60-I69Cerebrovascular diseases
CategoryI60Nontraumatic subarachnoid hemorrhage
This CodeI60.31Nontraumatic subarachnoid hemorrhage from right posterior communicating artery

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Aneurysm of posterior communicating artery
  • Ruptured aneurysm of posterior communicating artery
  • Ruptured aneurysm of right posterior communicating artery
  • Spontaneous hemorrhage of subarachnoid space from right posterior communicating artery
  • Spontaneous rupture of right posterior communicating artery

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR021
Acute hemorrhagic cerebrovascular disease
Default principal diagnosis: inpatient Yes · outpatient Yes

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.

Convert I60.31 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
430 Subarachnoid hemorrhage
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I60.31Overview

Is I60.31 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report nontraumatic subarachnoid hemorrhage from right posterior communicating artery on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of I60.31?

Under the General Equivalence Mappings, nontraumatic subarachnoid hemorrhage from right posterior communicating artery converts to ICD-9-CM 430 (subarachnoid hemorrhage). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.