2026 ICD-10-CM Diagnosis Code I73Other peripheral vascular diseases

ICD-10-CM Codes›I00–I99›I70-I79›I73

ICD-10-CM I73
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I73 is a non-billable ICD-10-CM category code for other peripheral vascular diseases, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I73.00, I73.01, I73.1, and I73.81.

Code Identity

ICD-10-CM Code
I73
Billable Status
No — Non-Billable Category
Code Describes
Other peripheral vascular diseases
Chapter
I70-I79
Diseases of arteries, arterioles and capillaries

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI70-I79Diseases of arteries, arterioles and capillaries
CategoryI73Other peripheral vascular diseases
This CodeI73Other peripheral vascular diseases

Specific Coding for Other peripheral vascular diseasesOverview

Non-specific codes like I73 require more characters. Use one of these billable codes instead:

  • I73.0 for Raynaud's syndrome

  • Use I73.00 for Raynaud's syndrome without gangrene

  • Use I73.01 for Raynaud's syndrome with gangrene

  • Use I73.1 for Thromboangiitis obliterans [Buerger's disease]

  • I73.8 for Other specified peripheral vascular diseases

  • Use I73.81 for Erythromelalgia

  • Use I73.89 for Other specified peripheral vascular diseases

  • Use I73.9 for Peripheral vascular disease, unspecified

Tabular List NotesGuidance

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

Type 2 Excludes

Clinical InformationClinical

  • Peripheral Vascular Diseases

    pathological processes involving any one of the blood vessels in the vasculature outside the heart.

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 I73Overview

Is I73 (Other peripheral vascular diseases) a billable code?

No. This is a category header that groups the codes for other peripheral vascular diseases, and headers cannot be submitted on claims. Claims for other peripheral vascular diseases need a more specific code from this category, such as I73.00, I73.01, and I73.1.