2021 ICD-10-CM Code I80.2

Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities

Version 2021

Not Valid for Submission

I80.2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities. The code is not specific and is NOT valid for the year 2021 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 I80.2 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.

ICD-10:I80.2
Short Description:Phlbts and thombophlb of and unsp deep vessels of low extrm
Long Description:Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities

Code Classification

Specific Coding for Phlbts and thombophlb of and unsp deep vessels of low extrm

Non-specific codes like I80.2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for phlbts and thombophlb of and unsp deep vessels of low extrm:

  • NON-BILLABLE CODE - I80.20 for Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities
  • BILLABLE CODE - Use I80.201 for Phlebitis and thrombophlebitis of unspecified deep vessels of right lower extremity
  • BILLABLE CODE - Use I80.202 for Phlebitis and thrombophlebitis of unspecified deep vessels of left lower extremity
  • BILLABLE CODE - Use I80.203 for Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities, bilateral
  • BILLABLE CODE - Use I80.209 for Phlebitis and thrombophlebitis of unspecified deep vessels of unspecified lower extremity
  • NON-BILLABLE CODE - I80.21 for Phlebitis and thrombophlebitis of iliac vein
  • BILLABLE CODE - Use I80.211 for Phlebitis and thrombophlebitis of right iliac vein
  • BILLABLE CODE - Use I80.212 for Phlebitis and thrombophlebitis of left iliac vein
  • BILLABLE CODE - Use I80.213 for Phlebitis and thrombophlebitis of iliac vein, bilateral
  • BILLABLE CODE - Use I80.219 for Phlebitis and thrombophlebitis of unspecified iliac vein
  • NON-BILLABLE CODE - I80.22 for Phlebitis and thrombophlebitis of popliteal vein
  • BILLABLE CODE - Use I80.221 for Phlebitis and thrombophlebitis of right popliteal vein
  • BILLABLE CODE - Use I80.222 for Phlebitis and thrombophlebitis of left popliteal vein
  • BILLABLE CODE - Use I80.223 for Phlebitis and thrombophlebitis of popliteal vein, bilateral
  • BILLABLE CODE - Use I80.229 for Phlebitis and thrombophlebitis of unspecified popliteal vein
  • NON-BILLABLE CODE - I80.23 for Phlebitis and thrombophlebitis of tibial vein
  • BILLABLE CODE - Use I80.231 for Phlebitis and thrombophlebitis of right tibial vein
  • BILLABLE CODE - Use I80.232 for Phlebitis and thrombophlebitis of left tibial vein
  • BILLABLE CODE - Use I80.233 for Phlebitis and thrombophlebitis of tibial vein, bilateral
  • BILLABLE CODE - Use I80.239 for Phlebitis and thrombophlebitis of unspecified tibial vein
  • NON-BILLABLE CODE - I80.24 for Phlebitis and thrombophlebitis of peroneal vein
  • BILLABLE CODE - Use I80.241 for Phlebitis and thrombophlebitis of right peroneal vein
  • BILLABLE CODE - Use I80.242 for Phlebitis and thrombophlebitis of left peroneal vein
  • BILLABLE CODE - Use I80.243 for Phlebitis and thrombophlebitis of peroneal vein, bilateral
  • BILLABLE CODE - Use I80.249 for Phlebitis and thrombophlebitis of unspecified peroneal vein
  • NON-BILLABLE CODE - I80.25 for Phlebitis and thrombophlebitis of calf muscular vein
  • BILLABLE CODE - Use I80.251 for Phlebitis and thrombophlebitis of right calf muscular vein
  • BILLABLE CODE - Use I80.252 for Phlebitis and thrombophlebitis of left calf muscular vein
  • BILLABLE CODE - Use I80.253 for Phlebitis and thrombophlebitis of calf muscular vein, bilateral
  • BILLABLE CODE - Use I80.259 for Phlebitis and thrombophlebitis of unspecified calf muscular vein
  • NON-BILLABLE CODE - I80.29 for Phlebitis and thrombophlebitis of other deep vessels of lower extremities
  • BILLABLE CODE - Use I80.291 for Phlebitis and thrombophlebitis of other deep vessels of right lower extremity
  • BILLABLE CODE - Use I80.292 for Phlebitis and thrombophlebitis of other deep vessels of left lower extremity
  • BILLABLE CODE - Use I80.293 for Phlebitis and thrombophlebitis of other deep vessels of lower extremity, bilateral
  • BILLABLE CODE - Use I80.299 for Phlebitis and thrombophlebitis of other deep vessels of unspecified lower extremity

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

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.
[Learn More in MedlinePlus]

Deep Vein Thrombosis

Also called: DVT

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)