ICD-10 Code I74.3

Embolism and thrombosis of arteries of the lower extremities

Version 2019 Billable Code

Valid for Submission

I74.3 is a billable code used to specify a medical diagnosis of embolism and thrombosis of arteries of the lower extremities. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

ICD-10: I74.3
Short Description:Embolism and thrombosis of arteries of the lower extremities
Long Description:Embolism and thrombosis of arteries of the lower extremities

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Diseases of arteries, arterioles and capillaries (I70-I79)
      • Arterial embolism and thrombosis (I74)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (first year ICD-10-CM implemented into the HIPAA mandated code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code I74.3 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.


Convert I74.3 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 444.22 - Lower extremity embolism (Approximate Flag)


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute occlusion of artery of lower limb co-occurrent and due to thromboembolus
  • Acute occlusion of artery of lower limb due to thrombosis
  • Common femoral artery occlusion
  • Common femoral artery thrombosis
  • Crural artery thrombosis
  • Embolism and thrombosis of an arm or leg artery
  • Embolism and thrombosis of an arm or leg artery
  • Embolism and thrombosis of an arm or leg artery
  • Embolism and thrombosis of an arm or leg artery
  • Embolism and thrombosis of an arm or leg artery
  • Embolism and thrombosis of the anterior tibial artery
  • Embolism and thrombosis of the dorsalis pedis artery
  • Embolism and thrombosis of the femoral artery
  • Embolism and thrombosis of the popliteal artery
  • Embolism and thrombosis of the posterior tibial artery
  • Femoral artery embolus
  • Femoral artery occlusion
  • Femoral artery thrombosis
  • Femoral popliteal occlusion
  • Lower limb arterial embolus
  • Occlusion of lower limb artery
  • Occlusion of right femoral artery
  • Popliteal artery embolus
  • Popliteal artery occlusion
  • Popliteal artery thrombosis
  • Profunda femoris artery thrombosis
  • Superficial femoral artery occlusion
  • Superficial femoral artery thrombosis
  • Thrombosis of arteries of lower extremity
  • Thrombosis of artery of bilateral lower limbs
  • Thrombosis of bilateral popliteal arteries

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I74.3 are found in the index:

Information for Patients

Blood Clots

Also called: Hypercoagulability

Normally, if you get hurt, your body forms a blood clot to stop the bleeding. After the bleeding stops and healing takes place, your body usually breaks down and removes the clot. But some people get too many clots or their blood clots abnormally. Many conditions can cause the blood to clot too much or prevent blood clots from dissolving properly.

Risk factors for excessive blood clotting include

  • Certain genetic disorders
  • Atherosclerosis
  • Diabetes
  • Atrial fibrillation
  • Overweight, obesity, and metabolic syndrome
  • Some medicines
  • Smoking
  • Staying in one position for a long time, such as being in the hospital or taking a long car or plane ride
  • Cancer and cancer treatments
Blood clots can form in, or travel to, the blood vessels in the brain, heart, kidneys, lungs, and limbs. A clot in the veins deep in the limbs is called deep vein thrombosis (DVT). DVT usually affects the deep veins of the legs. If a blood clot in a deep vein breaks off and travels through the bloodstream to the lungs and blocks blood flow, it is called a pulmonary embolism. Other complications of blood clots include stroke, heart attack, kidney problems, kidney failure, and pregnancy-related problems.Treatments for blood clots include blood thinners and other medicines.
  • Arterial embolism (Medical Encyclopedia)
  • Blood clots (Medical Encyclopedia)
  • D-dimer test (Medical Encyclopedia)
  • Prothrombin time (PT) (Medical Encyclopedia)
  • Superficial thrombophlebitis (Medical Encyclopedia)
  • Thrombophlebitis (Medical Encyclopedia)

[Learn More]

Vascular Diseases

The vascular system is the body's network of blood vessels. It includes the arteries, veins and capillaries that carry blood to and from the heart. Problems of the vascular system are common and can be serious. Arteries can become thick and stiff, a problem called atherosclerosis. Blood clots can clog vessels and block blood flow to the heart or brain. Weakened blood vessels can burst, causing bleeding inside the body.

You are more likely to have vascular disease as you get older. Other factors that make vascular disease more likely include

  • Family history of vascular or heart diseases
  • Pregnancy
  • Illness or injury
  • Long periods of sitting or standing still
  • Any condition that affects the heart and blood vessels, such as diabetes or high cholesterol
  • Smoking
  • Obesity

Losing weight, eating healthy foods, being active and not smoking can help vascular disease. Other treatments include medicines and surgery.

  • Aortic arch syndrome (Medical Encyclopedia)
  • Arterial embolism (Medical Encyclopedia)
  • Arteriogram (Medical Encyclopedia)
  • Cerebral angiography (Medical Encyclopedia)
  • Duplex ultrasound (Medical Encyclopedia)
  • Venous insufficiency (Medical Encyclopedia)
  • Venous ulcers -- self-care (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.