2019 ICD-10-CM Diagnosis Code I50.9

Heart failure, unspecified

    2016 2017 2018 2019 Billable/Specific Code
  • I50.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM I50.9 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of I50.9 - other international versions of ICD-10 I50.9 may differ.
Applicable To
  • Cardiac, heart or myocardial failure NOS
  • Congestive heart disease
  • Congestive heart failure NOS
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (I50.9) and the excluded code together.
  • fluid overload (
    ICD-10-CM Diagnosis Code E87.70

    Fluid overload, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    E87.70
    )
The following code(s) above I50.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I50.9:
  • I00-I99
    2019 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I50
    ICD-10-CM Diagnosis Code I50

    Heart failure

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code First
    • heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
    • heart failure due to hypertension (I11.0)
    • heart failure due to hypertension with chronic kidney disease (I13.-)
    • heart failure following surgery (I97.13-)
    • obstetric surgery and procedures (O75.4)
    • rheumatic heart failure (I09.81)
    Type 1 Excludes
    • neonatal cardiac failure (P29.0)
    Type 2 Excludes
    Heart failure
Approximate Synonyms
  • Acute congestive heart failure
  • Acute congestive heart failure (chf)
  • Acute exacerbation of chronic congestive heart failure
  • Acute on chronic congestive heart failure
  • Acute right sided congestive heart failure (chf)
  • Acute right-sided congestive heart failure
  • At risk for congestive heart failure
  • At risk for heart failure
  • Benign htn heart and ckd, 1 (gfr>=90), w chf
  • Benign htn heart and ckd, 2 (gfr60-89), w chf
  • Benign htn heart and ckd, 3 (gfr30-59), w chf
  • Benign htn heart and ckd, 4 (gfr15-29), w chf
  • Benign htn heart and ckd, esrd, w chf
  • Benign hypertensive heart and chronic renal disease stage 1 with congestive heart failure
  • Benign hypertensive heart and chronic renal disease stage 2 with congestive heart failure
  • Benign hypertensive heart and chronic renal disease stage 3 with congestive heart failure
  • Benign hypertensive heart and chronic renal disease stage 4 with congestive heart failure
  • Benign hypertensive heart and chronic renal disease stage 5 with congestive heart failure
  • Benign hypertensive heart and chronic renal disease with congestive heart failure
  • Benign hypertensive heart and end stage renal disease with congestive heart failure
  • Benign hypertensive heart disease with congestive heart failure
  • Chf (congestive heart failure)
  • Chf (congestive heart failure) due to valvular disease
  • Chf (congestive heart failure), stage a
  • Chf (congestive heart failure), stage b
  • Chf (congestive heart failure), stage c
  • Chf (congestive heart failure), stage d
  • Chf following cardiac surgery, postop
  • Chf following non-cardiac surgery, postop
  • Chf w lvef unknown
  • Chronic congestive heart failure
  • Chronic congestive heart failure (chf)
  • Chronic right sided congestive heart failure (chf)
  • Chronic right-sided congestive heart failure
  • Congestive heart failure
  • Congestive heart failure (chf)
  • Congestive heart failure (chf) exacerbation (flareup)
  • Congestive heart failure (chf) following cardiac surgery
  • Congestive heart failure (chf) following noncardiac surgery
  • Congestive heart failure (chf) with cardiomyopathy
  • Congestive heart failure (chf), acute
  • Congestive heart failure (chf), chronic
  • Congestive heart failure (chf), chronic with acute flare up
  • Congestive heart failure as post-operative complication of cardiac surgery
  • Congestive heart failure as post-operative complication of non-cardiac surgery
  • Congestive heart failure as postoperative complication of cardiac surgery
  • Congestive heart failure as postoperative complication of non cardiac surgery
  • Congestive heart failure due to cardiomyopathy
  • Congestive heart failure due to valvular disease
  • Congestive heart failure stage b
  • Congestive heart failure stage b due to ischemic cardiomyopathy
  • Congestive heart failure stage c
  • Congestive heart failure stage c due to ischemic cardiomyopathy
  • Congestive heart failure stage d
  • Congestive heart failure stage d due to ischemic cardiomyopathy
  • Congestive heart failure with right heart failure
  • Congestive heart failure with unknown left ventricular ejection fraction
  • Congestive heart failure, chronic with acute flare up
  • Congestive left heart failure with right heart failure
  • Congestive rheumatic heart failure
  • Exacerbation of congestive heart failure
  • Heart failure
  • Heart failure left side with ejection fraction 31-40%
  • Heart failure with left ventricular ejection fraction 41-49 percent
  • Heart failure with left ventricular ejection fraction greater than or equal to 50 percent
  • High output heart failure
  • Hypertensive chronic kidney disease, severe
  • Hypertensive heart and chronic kidney disease on dialysis with congestive heart failure
  • Hypertensive heart and chronic kidney disease stage 1 with congestive heart failure
  • Hypertensive heart and chronic kidney disease stage 2 with congestive heart failure
  • Hypertensive heart and chronic kidney disease stage 3 with congestive heart failure
  • Hypertensive heart and chronic kidney disease stage 4 with congestive heart failure
  • Hypertensive heart and chronic kidney disease stage 5 with congestive heart failure
  • Hypertensive heart and chronic kidney disease with congestive heart failure
  • Hypertensive heart and kidney disease
  • Hypertensive heart and kidney disease with chf
  • Hypertensive heart and kidney disease with congestive heart failure (chf)
  • Hypertensive heart disease with heart failure
  • Hypertensive heart failure
  • Hypertensive heart/kidney dis w/ congestive heart fail
  • Hypertensive kidney and heart disease
  • Hypertensive kidney and heart disease, on dialysis
  • Ischemic cardiomyopathy with congestive heart failure stage b
  • Ischemic cardiomyopathy with congestive heart failure stage c
  • Ischemic cardiomyopathy with congestive heart failure stage d
  • Left heart failure
  • Left heart failure with left ejection fraction 30-40 percent
  • Left heart failure with left ejection fraction less than or equal to 30 percent
  • Low cardiac output syndrome
  • Malignant hypertensive heart and chronic renal disease with congestive heart failure
  • Malignant hypertensive heart and chronic renal disease, stage 5, with congestive heart failure
  • Malignant hypertensive heart and end stage renal disease with congestive heart failure
  • Malignant hypertensive heart disease with congestive heart failure
  • Nutritional therapy for congestive heart failure
  • Nutritional therapy for congestive heart failure done
  • Right heart failure due to pulmonary htn
  • Right heart failure due to pulmonary hypertension
Clinical Information
  • A disorder characterized by the inability of the heart to pump blood at an adequate volume to meet tissue metabolic requirements, or, the ability to do so only at an elevation in the filling pressure.
  • A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (ventricular dysfunction), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as myocardial infarction.
  • Complication of heart diseases; defective cardiac filling and/or impaired contraction and emptying, resulting in the heart's inability to pump a sufficient amount of blood to meet the needs of the body tissues or to be able to do so only with an elevated filling pressure.
  • Failure of the heart to pump a sufficient amount of blood to meet the needs of the body tissues, resulting in tissue congestion and edema. Signs and symptoms include shortness of breath, pitting edema, enlarged tender liver, engorged neck veins, and pulmonary rales.
  • Heart failure accompanied by edema, such as swelling of the legs and ankles and congestion in the lungs.
  • Heart failure is a condition in which the heart can't pump enough blood throughout the body. 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. 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
    the leading causes of heart failure are coronary artery disease, high blood pressure and diabetes.treatment includes treating the underlying cause of your heart failure, medicines, and heart transplantation if other treatments fail.heart failure is a serious condition. About 5 million people in the United States Have heart failure. It contributes to 300,000 deaths each year.
  • Inability of the heart to pump blood at an adequate rate to fill tissue metabolic requirements or the ability to do so only at an elevated filling pressure.
  • Inability of the heart to pump blood at an adequate rate to meet tissue metabolic requirements or the ability to do so only at an elevated filling pressure.
  • Inability of the heart to pump blood at an adequate rate to meet tissue metabolic requirements. Clinical symptoms of heart failure include: unusual dyspnea on light exertion, recurrent dyspnea occurring in the supine position, fluid retention or rales, jugular venous distension, pulmonary edema on physical exam, or pulmonary edema on chest x-ray presumed to be cardiac dysfunction.
  • Weakness of the heart muscle that leads to a buildup of fluid in body tissues.
ICD-10-CM I50.9 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 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
  • 224 Cardiac defibrillator implant with cardiac catheterization without ami/hf/shock with mcc
  • 225 Cardiac defibrillator implant with cardiac catheterization without ami/hf/shock without mcc
  • 226 Cardiac defibrillator implant without cardiac catheterization with mcc
  • 227 Cardiac defibrillator implant without cardiac catheterization without mcc
  • 291 Heart failure and shock with mcc or peripheral extracorporeal membrane oxygenation (ecmo)
  • 292 Heart failure and shock with cc
  • 293 Heart failure and shock without cc/mcc
  • 793 Full term neonate with major problems

Convert I50.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to I50.9:

ICD-10-CM Codes Adjacent To I50.9
I50.81 Right heart failure
I50.810 …… unspecified
I50.811 Acute right heart failure
I50.812 Chronic right heart failure
I50.813 Acute on chronic right heart failure
I50.814 …… due to left heart failure
I50.82 Biventricular heart failure
I50.83 High output heart failure
I50.84 End stage heart failure
I50.89 Other heart failure
I50.9 Heart failure, unspecified
I51 Complications and ill-defined descriptions of heart disease
I51.0 Cardiac septal defect, acquired
I51.1 Rupture of chordae tendineae, not elsewhere classified
I51.2 Rupture of papillary muscle, not elsewhere classified
I51.3 Intracardiac thrombosis, not elsewhere classified
I51.4 Myocarditis, unspecified
I51.5 Myocardial degeneration
I51.7 Cardiomegaly
I51.8 Other ill-defined heart diseases
I51.81 Takotsubo syndrome

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.