ICD-10-CM 2027
ICD-10 code for peripheral artery disease
Confirmed by the official ICD-10-CM index entry “disease, diseased › artery › peripheral”. Page updated September 29, 2026.
About coding peripheral artery disease
The ICD-10-CM code for peripheral artery disease is I73.9 (Peripheral vascular disease, unspecified). The official index lists 40 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I73.9.
It is also searched as PAD, peripheral vascular disease, PVD.
Within I73, choose I73.9 (Peripheral vascular disease, unspecified) only when documentation doesn't support a more specific option: Raynaud's syndrome (I73.0), Thromboangiitis obliterans [Buerger's disease] (I73.1) and other specified peripheral vascular diseases (I73.8).
Don't report I73.9 together with the conditions in its Excludes1 note: atherosclerosis of the extremities (I70.2--I70.7-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Related Peripheral artery disease codes
- I70.201 Unspecified atherosclerosis of native arteries of extremities, right leg
- I70.202 Unspecified atherosclerosis of native arteries of extremities, left leg
- I70.203 Unspecified atherosclerosis of native arteries of extremities, bilateral legs
- I70.208 Unspecified atherosclerosis of native arteries of extremities, other extremity
- I70.209 Unspecified atherosclerosis of native arteries of extremities, unspecified extremity
- I70.211 Atherosclerosis of native arteries of extremities with intermittent claudication, right leg
- I70.212 Atherosclerosis of native arteries of extremities with intermittent claudication, left leg
- I70.213 Atherosclerosis of native arteries of extremities with intermittent claudication, bilateral legs
- I70.218 Atherosclerosis of native arteries of extremities with intermittent claudication, other extremity
- I70.219 Atherosclerosis of native arteries of extremities with intermittent claudication, unspecified extremity
- I70.221 Atherosclerosis of native arteries of extremities with rest pain, right leg
- I70.222 Atherosclerosis of native arteries of extremities with rest pain, left leg
- I70.223 Atherosclerosis of native arteries of extremities with rest pain, bilateral legs
- I70.228 Atherosclerosis of native arteries of extremities with rest pain, other extremity
- I70.229 Atherosclerosis of native arteries of extremities with rest pain, unspecified extremity
- I70.231 Atherosclerosis of native arteries of right leg with ulceration of thigh
- I70.232 Atherosclerosis of native arteries of right leg with ulceration of calf
- I70.233 Atherosclerosis of native arteries of right leg with ulceration of ankle
- I70.234 Atherosclerosis of native arteries of right leg with ulceration of heel and midfoot
- I70.235 Atherosclerosis of native arteries of right leg with ulceration of other part of foot
- I70.238 Atherosclerosis of native arteries of right leg with ulceration of other part of lower leg
- I70.239 Atherosclerosis of native arteries of right leg with ulceration of unspecified site
- I70.241 Atherosclerosis of native arteries of left leg with ulceration of thigh
- I70.242 Atherosclerosis of native arteries of left leg with ulceration of calf
- I70.243 Atherosclerosis of native arteries of left leg with ulceration of ankle
- I70.244 Atherosclerosis of native arteries of left leg with ulceration of heel and midfoot
- I70.245 Atherosclerosis of native arteries of left leg with ulceration of other part of foot
- I70.248 Atherosclerosis of native arteries of left leg with ulceration of other part of lower leg
- I70.249 Atherosclerosis of native arteries of left leg with ulceration of unspecified site
- I70.25 Atherosclerosis of native arteries of other extremities with ulceration
- I70.261 Atherosclerosis of native arteries of extremities with gangrene, right leg
- I70.262 Atherosclerosis of native arteries of extremities with gangrene, left leg
- I70.263 Atherosclerosis of native arteries of extremities with gangrene, bilateral legs
- I70.268 Atherosclerosis of native arteries of extremities with gangrene, other extremity
- I70.269 Atherosclerosis of native arteries of extremities with gangrene, unspecified extremity
- I70.291 Other atherosclerosis of native arteries of extremities, right leg
- I70.292 Other atherosclerosis of native arteries of extremities, left leg
- I70.293 Other atherosclerosis of native arteries of extremities, bilateral legs
- I70.298 Other atherosclerosis of native arteries of extremities, other extremity
- I70.299 Other atherosclerosis of native arteries of extremities, unspecified extremity
Don't confuse with (Excludes1 for I73.9)
Common questions about peripheral artery disease ICD-10 codes
What is the ICD-10 code for peripheral artery disease?
- I73.9 — Peripheral vascular disease, unspecified. More specific codes apply when the documentation supports them: I70.201, I70.202, I70.203, I70.208 and others below.
What is the ICD-10 code for unspecified atherosclerosis of native arteries of extremities, right leg?
- I70.201 — Unspecified atherosclerosis of native arteries of extremities, right leg.
What is the ICD-10 code for unspecified atherosclerosis of native arteries of extremities, left leg?
- I70.202 — Unspecified atherosclerosis of native arteries of extremities, left leg.
What is the ICD-10 code for unspecified atherosclerosis of native arteries of extremities, bilateral legs?
- I70.203 — Unspecified atherosclerosis of native arteries of extremities, bilateral legs.
What is the ICD-10 code for unspecified atherosclerosis of native arteries of extremities, other extremity?
- I70.208 — Unspecified atherosclerosis of native arteries of extremities, other extremity.
What is the ICD-10 code for unspecified atherosclerosis of native arteries of extremities, unspecified extremity?
- I70.209 — Unspecified atherosclerosis of native arteries of extremities, unspecified extremity.
What is the ICD-10 code for atherosclerosis of native arteries of extremities with intermittent claudication, right leg?
- I70.211 — Atherosclerosis of native arteries of extremities with intermittent claudication, right leg.
Is I73.9 billable?
- Yes. I73.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I73.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I73.9 as a principal diagnosis.
Is I73.9 a CC or MCC?
- No. I73.9 is neither a CC nor an MCC under MS-DRG v44.0.