2026 ICD-10-CM Diagnosis Code I67.2Cerebral atherosclerosis

ICD-10-CM Codes›I00–I99›I60-I69›I67

ICD-10-CM I67.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I67.2 is a billable ICD-10-CM diagnosis code for cerebral atherosclerosis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to adult patients (age 15 through 124). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other and ill-defined cerebrovascular disease.

Code Identity

ICD-10-CM Code
I67.2
Billable Status
Yes — Valid for Submission
Code Describes
Cerebral atherosclerosis
Short Description
Cerebral atherosclerosis
Same as the full description in the CMS dataset.
Parent Code
I67
Other cerebrovascular diseases

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI60-I69Cerebrovascular diseases
CategoryI67Other cerebrovascular diseases
This CodeI67.2Cerebral atherosclerosis

Code EditsBilling

Medicare Code Editor checks that affect claim validity for I67.2.

Adult diagnoses
The Medicare Code Editor detects inconsistencies in adult cases by checking a patient's age and any diagnosis on the patient's record. The adult code edits apply to patients age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Atheroma of artery
  • Atheroma of cerebral artery
  • Cerebral arteriosclerosis
  • Cerebral atherosclerosis
  • Cerebral ischemic stroke due to extracranial large artery atherosclerosis
  • Diffuse cerebrovascular disease
  • Multi-infarct dementia
  • Multi-infarct dementia due to atherosclerosis
  • Vertebral artery atherosclerosis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Atheroma of cerebral and precerebral arteries

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)
      • brain
    • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)
      • central nervous system
    • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)
      • cerebral
    • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)
      • cerebrovascular
    • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)
      • vertebral (artery)
    • Atheroma, atheromatous
      • basilar (artery)
    • Atheroma, atheromatous
      • carotid (artery) (common) (internal)
    • Atheroma, atheromatous
      • cerebral (arteries)
    • Atheroma, atheromatous
      • vertebral (artery)
    • Calcification
      • cerebral (cortex)
        • artery
    • Degeneration, degenerative
      • brain (cortical) (progressive)
        • arteriosclerotic
    • Degeneration, degenerative
      • cortical (cerebellar) (parenchymatous)
        • diffuse, due to arteriopathy
    • Disease, diseased
      • brain
        • arteriosclerotic
    • Disease, diseased
      • brain
        • organic
          • arteriosclerotic
    • Disease, diseased
      • cerebrovascular
        • arteriosclerotic
    • Encephalopathy(acute)
      • arteriosclerotic
    • Ischemia, ischemic
      • cerebral (chronic) (generalized)
        • arteriosclerotic
    • Klippel's disease
    • Sclerosis, sclerotic
      • brain (generalized) (lobular)
        • artery, arterial
    • Sclerosis, sclerotic
      • brain (generalized) (lobular)
        • senile (arteriosclerotic)
    • Sclerosis, sclerotic
      • cerebrovascular

Clinical ClassificationClinical

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

CCSR CIR024
Other and ill-defined cerebrovascular disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Cerebral Atherosclerosis

    atherosclerosis of the cerebral vasculature.

Patient EducationClinical

Brain Diseases

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body.

Read the full article at MedlinePlus

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

Convert I67.2 to ICD-9-CMHistory

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

ICD-9-CM
437.0 Cerebral atherosclerosis
Exact Match The mapping is direct, with no qualifiers.

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 I67.2Overview

Is I67.2 (Other cerebrovascular diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report cerebral atherosclerosis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Who can I67.2 be reported for?

The Medicare Code Editor checks cerebral atherosclerosis against patient demographics: this code is intended for adult patients (age 15 through 124). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of I67.2?

Under the General Equivalence Mappings, cerebral atherosclerosis converts to ICD-9-CM 437.0 (cerebral atherosclerosis). The mapping is a direct match.

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.