I73.9 — Peripheral vascular disease, unspecified

I73.9

ICD-10 Chapter 9: Circulatory System — illustrative image — Chapter 9: Diseases of the circulatory system (I00–I99) — illustrative image

What this code means

Peripheral vascular disease is narrowing of arteries outside the heart and brain, most often in the legs.

Also called: peripheral vascular disease, pvd, peripheral arterial disease, pad.

When this code is used

Used for peripheral vascular disease, unspecified.

Where it sits in ICD-10-CM

Code I73.9 belongs to Chapter 9: Diseases of the circulatory system, which covers codes I00–I99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Leg pain when walking

Watch: related videos

▶ WatchPeripheral arterial disease ▶ WatchSurgical approaches for peripheral arterial disease

Frequently asked questions

What is ICD-10-CM code I73.9?

I73.9 is the ICD-10-CM diagnosis code for “Peripheral vascular disease, unspecified”. Peripheral vascular disease is narrowing of arteries outside the heart and brain, most often in the legs.

When is code I73.9 used?

Used for peripheral vascular disease, unspecified. It belongs to Chapter 9 of ICD-10-CM (Diseases of the circulatory system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.