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ICD-10 Guide
ICD-10 CodesI50.4

I50.4

Non-billable

Combined systolic (congestive) and diastolic (congestive) heart failure

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I50.4 is a used to indicate a diagnosis of combined systolic (congestive) and diastolic (congestive) heart failure.

Key Diagnostic Point:

I50.4 refers to combined systolic (congestive) and diastolic (congestive) heart failure, a condition characterized by the heart's inability to pump blood effectively, leading to congestion in the lungs and systemic circulation. This condition involves both the left and right sides of the heart, resulting in a complex interplay of symptoms such as shortness of breath, fatigue, and fluid retention. The anatomy involved includes the ventricles, which may be weakened (systolic failure) or stiff (diastolic failure), leading to impaired filling and ejection of blood. Disease progression can vary, often exacerbated by comorbidities such as hypertension, coronary artery disease, and diabetes. Diagnostic considerations include echocardiography, BNP levels, and clinical assessment of symptoms. Accurate diagnosis is crucial for appropriate management, which may involve lifestyle modifications, medications such as diuretics and ACE inhibitors, and in severe cases, surgical interventions like heart transplantation.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors
  • Documentation gaps
  • Billing challenges

Specialty Focus

Medical Specialties

Cardiology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Internal Medicine

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

I50.4 has significant clinical implications, as it affects a large population, particularly the elderly and those with comorbid conditions. The burden of heart failure on healthcare systems is substantial, leading to increased hospitalizations and healthcare utilization. Quality measures often focus on managing heart failure effectively to improve patient outcomes and reduce readmission rates, highlighting the importance of accurate coding and documentation in managing this prevalent condition.

ICD-9 vs ICD-10

I50.4 has significant clinical implications, as it affects a large population, particularly the elderly and those with comorbid conditions. The burden of heart failure on healthcare systems is substantial, leading to increased hospitalizations and healthcare utilization. Quality measures often focus on managing heart failure effectively to improve patient outcomes and reduce readmission rates, highlighting the importance of accurate coding and documentation in managing this prevalent condition.

Reimbursement & Billing Impact

Reimbursement considerations include the need for clear evidence of both systolic and diastolic heart failure. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity. Best practices include ensuring all relevant clinical information is included in the patient's record and coding accurately based on the most specific diagnosis.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by I50.4?

I50.4 encompasses patients diagnosed with both systolic and diastolic heart failure, often presenting with symptoms of fluid overload and reduced cardiac output. It includes conditions where both types of heart failure coexist, complicating the clinical picture.

When should I50.4 be used instead of related codes?

I50.4 should be used when a patient exhibits signs and symptoms of both systolic and diastolic heart failure, as opposed to using I50.1 or I50.2, which are specific to one type of heart failure. Accurate assessment of the patient's clinical status is essential for appropriate code selection.

What documentation supports I50.4?

Documentation should include detailed clinical assessments, echocardiogram results indicating both systolic and diastolic dysfunction, BNP levels, and a comprehensive treatment plan. Clear documentation of symptoms and their impact on daily activities is also necessary.