2021 ICD-10-CM Code I50.42 - Chronic combined systolic (congestive) and diastolic (congestive) heart failure

Valid for Submission

I50.42 is a billable diagnosis code used to specify a medical diagnosis of chronic combined systolic (congestive) and diastolic (congestive) heart failure. The code I50.42 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code I50.42 might also be used to specify conditions or terms like chronic combined systolic and diastolic heart failure, chronic diastolic heart failure, chronic systolic heart failure, combined systolic and diastolic dysfunction or diastolic heart failure.

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

Code Classification

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

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 I50.42 are found in the index:

- Failure, failed
- - heart (acute) (senile) (sudden) - I50.9
  - - diastolic (congestive) (left ventricular) - I50.30
    - - combined with systolic (congestive) - I50.40
      - - chronic (congestive) - I50.42
- - Note: heart failure stages A, B, C, and D are based on the American College of Cardiology and American Heart Association stages of heart failure, which complement and should not be confused with the New York Heart Association Classification of Heart Failure, into Class I, Class II, Class III, and Class IV
  - - systolic (congestive) (left ventricular) - I50.20
    - - combined with diastolic (congestive) - I50.40
      - - chronic (congestive) - I50.42

Approximate Synonyms

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

Chronic combined systolic and diastolic heart failure
Chronic diastolic heart failure
Chronic systolic heart failure
Combined systolic and diastolic dysfunction
Diastolic heart failure

Diagnostic Related Groups - MS-DRG Mapping

The ICD-10 code I50.42 is grouped in the following groups for version MS-DRG V38.0 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 09/30/2021.

222 - CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI, HF OR SHOCK WITH MCC
223 - CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI, HF OR SHOCK WITHOUT MCC

Convert I50.42 to ICD-9 Code

428.42 - Chr syst/diastl hrt fail (Approximate Flag)
428.42 - Chr syst/diastl hrt fail (Combination Flag)
428.0 - CHF NOS (Combination Flag)

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

Brain natriutetic peptide test (Medical Encyclopedia)
Heart failure - discharge (Medical Encyclopedia)
Heart failure - fluids and diuretics (Medical Encyclopedia)
Heart failure - home monitoring (Medical Encyclopedia)
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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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)

ICD-10:	I50.42
Short Description:	Chronic combined systolic and diastolic hrt fail
Long Description:	Chronic combined systolic (congestive) and diastolic (congestive) heart failure