ICD-10-CM Code I50.4

Combined systolic (congestive) and diastolic (congestive) heart failure

Version 2021 Non-Billable Code

Not Valid for Submission

I50.4 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of combined systolic (congestive) and diastolic (congestive) heart failure. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:I50.4
Short Description:Combined systolic and diastolic (congestive) hrt fail
Long Description:Combined systolic (congestive) and diastolic (congestive) heart failure

Consider the following ICD-10 codes with a higher level of specificity:

  • I50.40 - Unspecified combined systolic (congestive) and diastolic (congestive) heart failure
  • I50.41 - Acute combined systolic (congestive) and diastolic (congestive) heart failure
  • I50.42 - Chronic combined systolic (congestive) and diastolic (congestive) heart failure
  • I50.43 - Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure

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 I50.4:

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.
  • Combined systolic and diastolic left ventricular heart failure
  • Heart failure with reduced ejection fraction and diastolic dysfunction

Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • end stage heart failure, if applicable I50.84

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I52)
      • Heart failure (I50)

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
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Heart Failure

Also called: CHF, Cardiac failure, Congestive heart failure, Left-sided heart failure, Right-sided heart failure

Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs. Heart failure does not mean that your heart has stopped or is about to stop working. It means that your heart is not able to pump blood the way it should. It can affect one or both sides of the heart.

The weakening of the heart's pumping ability causes

  • Blood and fluid to back up into the lungs
  • The buildup of fluid in the feet, ankles and legs - called edema
  • Tiredness and shortness of breath

Common causes of heart failure are coronary artery disease, high blood pressure and diabetes. It is more common in people who are 65 years old or older, African Americans, people who are overweight, and people who have had a heart attack. Men have a higher rate of heart failure than women.

Your doctor will diagnose heart failure by doing a physical exam and heart tests. Treatment includes treating the underlying cause of your heart failure, medicines, and heart transplantation if other treatments fail.

NIH: National Heart, Lung, and Blood Institute

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  • Heart failure - medicines (Medical Encyclopedia)
  • Heart failure in children - home care (Medical Encyclopedia)
  • Heart failure in children - overview (Medical Encyclopedia)
  • Heart failure overview (Medical Encyclopedia)
  • Pleural effusion (Medical Encyclopedia)
  • Pulmonary edema (Medical Encyclopedia)

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