ICD-10-CM Code I26.99

Other pulmonary embolism without acute cor pulmonale

Version 2020 Replaced Code Billable Code

Valid for Submission

I26.99 is a billable code used to specify a medical diagnosis of other pulmonary embolism without acute cor pulmonale. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code I26.99 might also be used to specify conditions or terms like acute massive pulmonary embolism, acute pulmonary embolism, acute pulmonary thromboembolism, arterial air embolus, chronic pulmonary embolism, chronic thromboembolic pulmonary hypertension, etc

Short Description:Other pulmonary embolism without acute cor pulmonale
Long Description:Other pulmonary embolism without acute cor pulmonale

Replaced Code

This code was replaced in the 2020 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2019. This code was replaced for the FY 2020 (October 1, 2019 - September 30, 2020).

  • I26.93 - Single subsegmental pulmon emblsm w/o acute cor pulmonale
  • I26.94 - Mult subsegmental pulmon emboli without acute cor pulmonale

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code I26.99:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Acute pulmonary embolism NOS
  • Pulmonary embolism NOS

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 I26.99 are found in the index:


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

  • Acute massive pulmonary embolism
  • Acute pulmonary embolism
  • Acute pulmonary thromboembolism
  • Arterial air embolus
  • Chronic pulmonary embolism
  • Chronic thromboembolic pulmonary hypertension
  • Fat embolism - obstetric
  • Hemorrhagic pulmonary infarction
  • Infarction of lung due to embolus
  • Infarction of lung due to iatrogenic pulmonary embolism
  • Large vessel pulmonary hypertension
  • Obstetric blood-clot pulmonary embolism
  • Obstetric blood-clot pulmonary embolism - delivered
  • Obstetric blood-clot pulmonary embolism with antenatal complication
  • Obstetric blood-clot pulmonary embolism with postnatal complication
  • Obstetric pyemic and septic pulmonary embolism
  • Obstetric pyemic and septic pulmonary embolism - delivered with postnatal complication
  • Obstetrical pulmonary fat embolism
  • Postoperative pulmonary embolus
  • Pulmonary air embolism
  • Pulmonary artery thrombosis
  • Pulmonary embolism
  • Pulmonary embolism due to and following acute myocardial infarction
  • Pulmonary embolism on long-term anticoagulation therapy
  • Pulmonary embolism with pulmonary infarction
  • Pulmonary fat embolism
  • Pulmonary infarction
  • Pulmonary microemboli
  • Pulmonary necrosis
  • Pulmonary oil microembolism
  • Pulmonary thromboembolism
  • Pulmonary thrombosis
  • Pulmonary tumor embolism
  • Pulmonary venous thrombosis
  • Recurrent pulmonary embolism
  • Solitary pulmonary hypertension
  • Subacute massive pulmonary embolism
  • Tumor embolus

Diagnostic Related Groups

The ICD-10 code I26.99 is grouped in the following groups for version MS-DRG V37.0 What are 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).
applicable from 10/01/2019 through 09/30/2020.


Convert I26.99 to ICD-9

  • 415.19 - Pulm embol/infarct NEC (Approximate Flag)

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
      • Pulmonary embolism (I26)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA 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
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Pulmonary Embolism

What is a pulmonary embolism (PE)?

A pulmonary embolism (PE) is a sudden blockage in a lung artery. It usually happens when a when a blood clot breaks loose and travels through the bloodstream to the lungs. PE is a serious condition that can cause

  • Permanent damage to the lungs
  • Low oxygen levels in your blood
  • Damage to other organs in your body from not getting enough oxygen

PE can be life-threatening, especially if a clot is large, or if there are many clots.

What causes a pulmonary embolism (PE)?

The cause is usually a blood clot in the leg called a deep vein thrombosis that breaks loose and travels through the bloodstream to the lung.

Who is at risk for a pulmonary embolism (PE)?

Anyone can get a pulmonary embolism (PE), but certain things can raise your risk of PE:

  • Having surgery, especially joint replacement surgery
  • Certain medical conditions, including
    • Cancers
    • Heart diseases
    • Lung diseases
    • A broken hip or leg bone or other trauma
  • Hormone-based medicines, such as birth control pills or hormone replacement therapy
  • Pregnancy and childbirth. The risk is highest for about six weeks after childbirth.
  • Not moving for long periods, such as being on bed rest, having a cast, or taking a long plane flight
  • Age. Your risk increases as you get older, especially after age 40.
  • Family history and genetics. Certain genetic changes that can increase your risk of blood clots and PE.
  • Obesity

What are the symptoms of a pulmonary embolism (PE)?

Half the people who have pulmonary embolism have no symptoms. If you do have symptoms, they can include shortness of breath, chest pain or coughing up blood. Symptoms of a blood clot include warmth, swelling, pain, tenderness and redness of the leg.

How is a pulmonary embolism (PE) diagnosed?

It can be difficult to diagnose PE. To make a diagnosis, your health care provider will

  • Take your medical history, including asking about your symptoms and risk factors for PE
  • Do a physical exam
  • Run some tests, including various imaging tests and possibly some blood tests

What are the treatments for a pulmonary embolism (PE)?

If you have PE, you need medical treatment right away. The goal of treatment is to break up clots and help keep other clots from forming. Treatment options include medicines and procedures.


  • Anticoagulants, or blood thinners, keep blood clots from getting larger and stop new clots from forming. You might get them as an injection, a pill, or through an I.V. (intravenous). They can cause bleeding, especially if you are taking other medicines that also thin your blood, such as aspirin.
  • Thrombolytics are medicines to dissolve blood clots. You may get them if you have large clots that cause severe symptoms or other serious complications. Thrombolytics can cause sudden bleeding, so they are used if your PE is serious and may be life-threatening.


  • Catheter-assisted thrombus removal uses a flexible tube to reach a blood clot in your lung. Your health care provider can insert a tool in the tube to break up the clot or to deliver medicine through the tube. Usually you will get medicine to put you to sleep for this procedure.
  • A vena cava filter may be used in some people who cannot take blood thinners. Your health care provider inserts a filter inside a large vein called the vena cava. The filter catches blood clots before they travel to the lungs, which prevents pulmonary embolism. But the filter does not stop new blood clots from forming.

Can pulmonary embolism (PE) be prevented?

Preventing new blood clots can prevent PE. Prevention may include

  • Continuing to take blood thinners. It's also important to get regular checkups with your provider, to make sure that the dosage of your medicines is working to prevent blood clots but not causing bleeding.
  • Heart-healthy lifestyle changes, such as heart-healthy eating, exercise, and, if you smoke, quitting smoking
  • Using compression stockings to prevent deep vein thrombosis (DVT)
  • Moving your legs when sitting for long periods of time (such as on long trips)
  • Moving around as soon as possible after surgery or being confined to a bed

NIH: National Heart, Lung, and Blood Institute

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