2022 ICD-10-CM Code I82.521

Chronic embolism and thrombosis of right iliac vein

Version 2021

Valid for Submission

ICD-10:I82.521
Short Description:Chronic embolism and thrombosis of right iliac vein
Long Description:Chronic embolism and thrombosis of right iliac vein

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)
      • Other venous embolism and thrombosis (I82)

I82.521 is a billable diagnosis code used to specify a medical diagnosis of chronic embolism and thrombosis of right iliac vein. The code I82.521 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code I82.521 might also be used to specify conditions or terms like chronic deep vein thrombosis of pelvic vein, chronic deep vein thrombosis of right iliac vein, chronic deep vein thrombosis of right pelvic vein or chronic deep venous thrombosis of right lower extremity.

Approximate Synonyms

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

Convert I82.521 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I82.521 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Blood Clots

What is a blood clot?

A blood clot is mass of blood that forms when platelets, proteins, and cells in the blood stick together. When 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 blood clot. But sometimes the blood clots form where they shouldn't, your body makes too many blood clots or abnormal blood clots, or the blood clots don't break down like they should. These blood clots can be dangerous and may cause other health problems.

Blood clots can form in, or travel to, the blood vessels in the limbs, lungs, brain, heart, and kidneys. The types of problems blood clots can cause will depend on where they are:

Who is at risk for blood clots?

Certain factors can raise the risk of blood clots:

What are the symptoms of blood clots?

The symptoms for blood clots can be different, depending on where the blood clot is:

How are blood clots diagnosed?

Your health care provider may use many tools to diagnose blood clots:

What are the treatments for blood clots?

Treatments for blood clots depend on where the blood clot is located and how severe it is. Treatments may include

Can blood clots be prevented?

You may be able to help prevent blood clots by

Some people at high risk may need to take blood thinners to prevent blood clots.


[Learn More in MedlinePlus]

Deep Vein Thrombosis

Deep vein thrombosis, or DVT, is a blood clot that forms in a vein deep in the body. Most deep vein clots occur in the lower leg or thigh. If the vein swells, the condition is called thrombophlebitis. A deep vein thrombosis can break loose and cause a serious problem in the lung, called a pulmonary embolism.

Sitting still for a long time can make you more likely to get a DVT. Some medicines and disorders that increase your risk for blood clots can also lead to DVTs. Common symptoms are

Treatment includes medicines to ease pain and inflammation, break up clots and keep new clots from forming. Keeping the affected area raised and applying moist heat can also help. If you are taking a long car or plane trip, take a break, walk or stretch your legs and drink plenty of liquids.


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)