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I50.21
ICD-10-CM
Acute Systolic Heart Failure

Understand Acute Systolic Heart Failure (HFrEF), also known as Acute Decompensated Heart Failure or Acute Systolic Congestive Heart Failure. This resource provides information on diagnosis, clinical documentation, and medical coding for HFrEF, supporting healthcare professionals in accurate and efficient patient care. Learn about Heart Failure with Reduced Ejection Fraction and ensure proper coding and documentation for Acute Systolic Heart Failure.

Also known as

Acute Decompensated Heart Failure
Acute Systolic Congestive Heart Failure
HFrEF (Heart Failure with Reduced Ejection Fraction)

Diagnosis Snapshot

Key Facts
  • Definition : Sudden worsening of heart's pumping ability, leading to fluid buildup in the lungs.
  • Clinical Signs : Shortness of breath, fatigue, swollen ankles, rapid heart rate, lung crackles.
  • Common Settings : Emergency room, hospital admission, intensive care unit.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC I50.21 Coding
I50.2

Systolic heart failure

Heart failure with reduced ejection fraction.

I50.9

Heart failure, unspecified

Heart failure not otherwise specified.

I11.0

Hypertensive heart disease with heart failure

Heart failure caused by high blood pressure.

I51.71

Cardiogenic shock due to systolic dysfunction

Severe heart failure leading to circulatory collapse.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the systolic heart failure acute?

  • Yes

    Is there left ventricular systolic dysfunction?

  • No

    Do NOT code as acute. Consider I50.9 Chronic heart failure, unspecified

Code Comparison

Related Codes Comparison

When to use each related code

Description
Sudden worsening of heart's pumping ability.
Heart failure with preserved EF.
Long-term reduced heart pumping ability.

Documentation Best Practices

Documentation Checklist
  • Document LVEF measurements & interpretation.
  • Record symptoms (dyspnea, edema, fatigue).
  • Detail physical exam findings (rales, S3).
  • Note medications & response to treatment.
  • Specify acuity & precipitating factors if any.

Coding and Audit Risks

Common Risks
  • Unspecified HF Type

    Coding acute systolic HF without specifying systolic/diastolic or reduced/preserved EF can lead to inaccurate DRG assignment and reimbursement.

  • Comorbidity Capture

    Missing documentation of comorbidities like hypertension, diabetes, or atrial fibrillation can impact severity and risk adjustment.

  • Acute vs. Chronic HF

    Incorrectly coding acute on chronic HF as simply chronic HF can underrepresent severity and resource utilization.

Mitigation Tips

Best Practices
  • Optimize CDI for HFrEF: Document LVEF, symptom onset, and NYHA class.
  • ICD-10-CM coding: Specify systolic (I50.21) vs. combined (I50.41) HF.
  • Ensure compliant billing for acute decompensated HF: Review medical necessity.
  • Best practice: Loop diuretics, oxygen, and hemodynamic monitoring for ADHF.
  • Timely follow-up post-discharge reduces readmissions for acute systolic HF.

Clinical Decision Support

Checklist
  • Verify acute onset of symptoms: dyspnea, edema, fatigue.
  • Confirm systolic dysfunction: LVEF <40% on echo or other imaging.
  • Assess for congestion signs: rales, JVD, S3 heart sound.
  • Review medications: optimize for HF (diuretics, ACEi/ARB/ARNI).
  • Document clinical findings and rationale for diagnosis (ICD-10 I50.2x).

Reimbursement and Quality Metrics

Impact Summary
  • **Reimbursement and Quality Metrics Impact Summary for Acute Systolic Heart Failure (A)**
  • **Keywords:** heart failure coding, DRG assignment, HFrEF reimbursement, quality reporting, acute decompensated heart failure coding, systolic heart failure metrics
  • **Impacts:**
  • - Higher DRG weighting, impacting MS-DRG assignment and reimbursement.
  • - Increased scrutiny on documentation accuracy for optimal reimbursement.
  • - Core measure compliance affects hospital quality scores and value-based payments.
  • - Accurate coding crucial for tracking heart failure readmissions and outcomes.

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Frequently Asked Questions

Common Questions and Answers

Q: What are the key differentiating factors in the initial assessment of acute systolic heart failure versus acute diastolic heart failure?

A: Differentiating between acute systolic and diastolic heart failure during initial assessment requires a multifaceted approach. While both present with similar symptoms like dyspnea and pulmonary edema, the underlying pathophysiology differs. Acute systolic heart failure, also known as HFrEF (heart failure with reduced ejection fraction), is characterized by impaired contractility and a reduced left ventricular ejection fraction (LVEF), typically below 40%. Assessment often reveals a weakened apical impulse and S3 gallop. Conversely, acute diastolic heart failure (HFpEF) involves impaired ventricular relaxation and filling, with a preserved or even increased LVEF. Physical exam findings may include an S4 gallop and signs of right-sided heart failure due to elevated filling pressures. Echocardiography plays a crucial role in definitive diagnosis, enabling assessment of LVEF, diastolic function, and valvular abnormalities. Explore how incorporating B-type natriuretic peptide (BNP) or N-terminal pro-BNP (NT-proBNP) levels can enhance early risk stratification in patients presenting with acute dyspnea. Accurate differentiation is critical for guiding appropriate therapeutic strategies.

Q: How do current guidelines recommend managing acute systolic heart failure with severe pulmonary edema in the emergency setting?

A: Management of acute systolic heart failure with severe pulmonary edema in the emergency setting requires rapid stabilization and intervention. Current guidelines, such as those from the American College of Cardiology (ACC) and the American Heart Association (AHA), emphasize supplemental oxygen, intravenous loop diuretics (e.g., furosemide) for aggressive diuresis, and vasodilators like nitroglycerin to reduce preload and afterload. For patients with hypotension or cardiogenic shock, inotropic support (e.g., dobutamine, milrinone) may be necessary. Continuous hemodynamic monitoring is essential to guide therapy and assess response. Consider implementing noninvasive ventilation if respiratory distress persists despite initial interventions. Learn more about advanced management strategies, including mechanical circulatory support, for refractory cases of acute decompensated heart failure. Early and aggressive management can significantly improve patient outcomes in this critical setting.

Quick Tips

Practical Coding Tips
  • Code I50.9 for unspecified HFrEF
  • Document LVEF if available
  • Query physician for clarity if needed
  • Consider I09.81 for ADHF
  • Check ICD-10-CM guidelines

Documentation Templates

Patient presents with acute systolic heart failure (ASHF), also known as acute decompensated heart failure (ADHF) and acute systolic congestive heart failure, consistent with HFrEF (heart failure with reduced ejection fraction).  Symptoms include shortness of breath (dyspnea), orthopnea, paroxysmal nocturnal dyspnea (PND), and lower extremity edema.  The patient reports fatigue and decreased exercise tolerance.  Physical examination reveals pulmonary rales, jugular venous distension (JVD), and an S3 heart sound.  The patient's medical history includes hypertension, coronary artery disease (CAD), and type 2 diabetes mellitus.  Echocardiography demonstrates a reduced left ventricular ejection fraction (LVEF).  Initial treatment includes intravenous diuretics for fluid overload management, oxygen therapy for hypoxemia, and initiation of guideline-directed medical therapy (GDMT) including ACE inhibitors or ARBs, beta-blockers, and mineralocorticoid receptor antagonists (MRAs) as tolerated.  Differential diagnoses considered include acute coronary syndrome (ACS), pulmonary embolism (PE), and valvular heart disease.  Patient status, response to treatment, and potential need for advanced heart failure therapies will be closely monitored.  ICD-10 code I50.21 for acute systolic (congestive) heart failure is documented.  The prognosis and long-term management plan for heart failure with reduced ejection fraction will be discussed with the patient and family.