All ICD10 Codes
I73Not billable, use a more specific code below

Other peripheral vascular diseases

In Diseases of arteries, arterioles and capillaries (I70-I79), chapter 9: Diseases of the Circulatory System

6 billable codes under I73: 1 is a CC; 1 map to HCC 263 (Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Excludes2: not included here, code separately if applicable

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers hypertension with heart and kidney disease, coronary artery disease with angina, perioperative stroke, cerebrovascular sequelae, and acute myocardial infarction types and timing.

Read Section I.C.9 (page 50)

All codes under I73

I73 can't be used on a claim. Pick a billable code below; grey headings group them.

I73 MS-DRGs

As the principal diagnosis, the billable codes under I73 group to MS-DRG 299, 300, 301, 545, 546, or 547 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to I73

Notes on these codes point to I73.

  • I96 Excludes1: gangrene in other peripheral vascular diseases (I73.-)

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.