Valid for Submission
I50.21 is a billable diagnosis code used to specify a medical diagnosis of acute systolic (congestive) heart failure. The code I50.21 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 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, decreased cardiac ejection fraction, decreased cardiac function, 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.
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:
- - Failure, failed
- - 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
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 - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|222||CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI, HF OR SHOCK WITH MCC||05||8.4211|
|223||CARDIAC DEFIBRILLATOR IMPLANT WITH CARDIAC CATHETERIZATION WITH AMI, HF OR SHOCK WITHOUT MCC||05||6.2121|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert I50.21 to ICD-9 Code
Information for Patients
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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