2024 ICD-10-CM Diagnosis Code I70.3

Atherosclerosis of unspecified type of bypass graft(s) of the extremities

ICD-10-CM Code:
I70.3
ICD-10 Code for:
Athscl unsp type bypass graft(s) of the extremities
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Diseases of arteries, arterioles and capillaries
      (I70-I79)
      • Atherosclerosis
        (I70)

I70.3 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of atherosclerosis of unspecified type of bypass graft(s) of the extremities. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like I70.3 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding Applicable to Athscl unsp type bypass graft(s) of the extremities

Non-specific codes like I70.3 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for athscl unsp type bypass graft(s) of the extremities:

  • I70.30 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities - NON-BILLABLE CODE

  • Use I70.301 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, right leg - BILLABLE CODE

  • Use I70.302 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, left leg - BILLABLE CODE

  • Use I70.303 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, bilateral legs - BILLABLE CODE

  • Use I70.308 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, other extremity - BILLABLE CODE

  • Use I70.309 for Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, unspecified extremity - BILLABLE CODE

  • I70.31 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication - NON-BILLABLE CODE

  • Use I70.311 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, right leg - BILLABLE CODE

  • Use I70.312 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, left leg - BILLABLE CODE

  • Use I70.313 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, bilateral legs - BILLABLE CODE

  • Use I70.318 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, other extremity - BILLABLE CODE

  • Use I70.319 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, unspecified extremity - BILLABLE CODE

  • I70.32 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain - NON-BILLABLE CODE

  • Use I70.321 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, right leg - BILLABLE CODE

  • Use I70.322 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, left leg - BILLABLE CODE

  • Use I70.323 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, bilateral legs - BILLABLE CODE

  • Use I70.328 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, other extremity - BILLABLE CODE

  • Use I70.329 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, unspecified extremity - BILLABLE CODE

  • I70.33 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration - NON-BILLABLE CODE

  • Use I70.331 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of thigh - BILLABLE CODE

  • Use I70.332 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of calf - BILLABLE CODE

  • Use I70.333 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of ankle - BILLABLE CODE

  • Use I70.334 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of heel and midfoot - BILLABLE CODE

  • Use I70.335 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of other part of foot - BILLABLE CODE

  • Use I70.338 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of other part of lower leg - BILLABLE CODE

  • Use I70.339 for Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of unspecified site - BILLABLE CODE

  • I70.34 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration - NON-BILLABLE CODE

  • Use I70.341 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of thigh - BILLABLE CODE

  • Use I70.342 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of calf - BILLABLE CODE

  • Use I70.343 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of ankle - BILLABLE CODE

  • Use I70.344 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of heel and midfoot - BILLABLE CODE

  • Use I70.345 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of foot - BILLABLE CODE

  • Use I70.348 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of lower leg - BILLABLE CODE

  • Use I70.349 for Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of unspecified site - BILLABLE CODE

  • Use I70.35 for Atherosclerosis of unspecified type of bypass graft(s) of other extremity with ulceration - BILLABLE CODE

  • I70.36 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene - NON-BILLABLE CODE

  • Use I70.361 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, right leg - BILLABLE CODE

  • Use I70.362 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, left leg - BILLABLE CODE

  • Use I70.363 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, bilateral legs - BILLABLE CODE

  • Use I70.368 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, other extremity - BILLABLE CODE

  • Use I70.369 for Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, unspecified extremity - BILLABLE CODE

  • I70.39 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities - NON-BILLABLE CODE

  • Use I70.391 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, right leg - BILLABLE CODE

  • Use I70.392 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, left leg - BILLABLE CODE

  • Use I70.393 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, bilateral legs - BILLABLE CODE

  • Use I70.398 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, other extremity - BILLABLE CODE

  • Use I70.399 for Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, unspecified extremity - BILLABLE CODE

Clinical Information

  • Atherosclerosis

    a thickening and loss of elasticity of the walls of arteries that occurs with formation of atherosclerotic plaques within the arterial intima.
  • Coronary Artery Disease

    pathological processes of coronary arteries that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.
  • Intracranial Arteriosclerosis

    vascular diseases characterized by thickening and hardening of the walls of arteries inside the skull. there are three subtypes: (1) atherosclerosis with fatty deposits in the arterial intima; (2) monckeberg's sclerosis with calcium deposits in the media and (3) arteriolosclerosis involving the small caliber arteries. clinical signs include headache; confusion; transient blindness (amaurosis fugax); speech impairment; and hemiparesis.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code, if applicable, to identify chronic total occlusion of artery of extremity I70.92

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • embolism or thrombus of bypass grafts of extremities T82.8

Patient Education


Atherosclerosis

Atherosclerosis is a disease in which plaque builds up inside your arteries. Plaque is a sticky substance made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows your arteries. That limits the flow of oxygen-rich blood to your body.

Atherosclerosis can lead to serious problems, including:

  • Coronary artery disease. These arteries supply blood to your heart. When they are blocked, you can suffer angina or a heart attack.
  • Carotid artery disease. These arteries supply blood to your brain. When they are blocked you can suffer a stroke.
  • Peripheral arterial disease. These arteries are in your arms, legs and pelvis. When they are blocked, you can suffer from numbness, pain and sometimes infections.

Atherosclerosis usually doesn't cause symptoms until it severely narrows or totally blocks an artery. Many people don't know they have it until they have a medical emergency.

A physical exam, imaging, and other diagnostic tests can tell if you have it. Medicines can slow the progress of plaque buildup. Your doctor may also recommend procedures such as angioplasty to open the arteries, or surgery on the coronary or carotid arteries. Lifestyle changes can also help. These include following a healthy diet, getting regular exercise, maintaining a healthy weight, quitting smoking, and managing stress.

NIH: National Heart, Lung, and Blood Institute


[Learn More in MedlinePlus]

Peripheral Arterial Disease

Peripheral arterial disease (PAD) happens when there is a narrowing of the blood vessels outside of your heart. The cause of PAD is atherosclerosis. This happens when plaque builds up on the walls of the arteries that supply blood to the arms and legs. Plaque is a substance made up of fat and cholesterol. It causes the arteries to narrow or become blocked. This can reduce or stop blood flow, usually to the legs. If severe enough, blocked blood flow can cause tissue death and can sometimes lead to amputation of the foot or leg.

The main risk factor for PAD is smoking. Other risk factors include older age and diseases like diabetes, high blood cholesterol, high blood pressure, heart disease, and stroke.

Many people who have PAD don't have any symptoms. If you have symptoms, they may include:

  • Pain, numbness, achiness, or heaviness in the leg muscles. This happens when walking or climbing stairs.
  • Weak or absent pulses in the legs or feet
  • Sores or wounds on the toes, feet, or legs that heal slowly, poorly, or not at all
  • A pale or bluish color to the skin
  • A lower temperature in one leg than the other leg
  • Poor nail growth on the toes and decreased hair growth on the legs
  • Erectile dysfunction, especially among men who have diabetes

PAD can increase your risk of heart attack, stroke, and transient ischemic attack.

Doctors diagnose PAD with a physical exam and heart and imaging tests. Treatments include lifestyle changes, medicines, and sometimes surgery. Lifestyle changes include dietary changes, exercise, and efforts to lower high cholesterol levels and high blood pressure.

NIH: National Heart, Lung, and Blood Institute


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.