ICD-10-CM Code I50.21

Acute systolic (congestive) heart failure

Version 2020 Billable Code Cardiology

Valid for Submission

I50.21 is a billable code used to specify a medical diagnosis of acute systolic (congestive) heart failure. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code I50.21 might also be used to specify conditions or terms like acute systolic heart failure or decreased cardiac ejection fraction or decreased cardiac function or heart failure with reduced ejection fraction or reduced ejection fraction co-occurrent and due to acute heart failure.

The code is commonly used in cardiology medical specialties to specify clinical concepts such as heart failure.

ICD-10:I50.21
Short Description:Acute systolic (congestive) heart failure
Long Description:Acute systolic (congestive) heart failure

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 I50.21 are found in the index:


Synonyms

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

  • Acute systolic heart failure
  • Decreased cardiac ejection fraction
  • Decreased cardiac function
  • Heart failure with reduced ejection fraction
  • Reduced ejection fraction co-occurrent and due to acute heart failure

Diagnostic Related Groups

The ICD-10 code I50.21 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 10/01/2020 through 09/30/2020.

  • 222 - CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI/HF/SHOCK WITH MCC
  • 223 - CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI/HF/SHOCK WITHOUT MCC

Convert I50.21 to ICD-9

  • 428.21 - Ac systolic hrt failure (Approximate Flag)
  • 428.21 - Ac systolic hrt failure (Combination Flag)
  • 428.0 - CHF NOS (Combination Flag)

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

Information for Patients


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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