MCMedicalCodingSoftware
G45.0

G45.0: Vertebro-basilar artery syndrome

Billable / specific codeICD-10-CM

G45.0 is a billable, specific ICD-10-CM code for vertebro-basilar artery syndrome. It is valid for submission on a claim.

Check G45.0 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above G45.0

A category’s note binds every code beneath it.

Written on G45: Transient cerebral ischemic attacks and related syndromes

  • neonatal cerebral ischemia (P91.0)
  • transient retinal artery occlusion (H34.0-)

Other codes that can never be billed with G45.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • I65Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

G45.0 is named in 38 Medicare coverage policies: 38 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52868Billing and Coding: Transesophageal Echocardiography (TEE)
  • A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56476Billing and Coding: Cardiac Radionuclide Imaging

Alphabetic index entries that lead here

  • Syndrome›basilar artery
  • Syndrome›vertebro-basilar artery
  • Insufficiency, insufficient›arterial›basilar
  • Insufficiency, insufficient›arterial›vertebral
  • Syndrome›vertebral›artery
  • Syndrome›vertebral›steal

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G45

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.