ICD-10 Guide

Hfref

ICD-10 Coding for Heart Failure with Reduced Ejection Fraction(I50.20, I50.21, I50.22, I50.23)

PRIMARY SPECIALTYCardiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Hfref?

Essential facts and insights about Heart Failure with Reduced Ejection Fraction

Key Clinical Considerations:

Dyspnea on exertion
Fatigue
Fluid retention (edema)
Elevated BNP or NT-proBNP levels
Reduced ejection fraction (<40%) on echocardiogram

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history of heart failure symptoms
Echocardiogram results indicating reduced ejection fraction
BNP or NT-proBNP lab results
Medication history and adherence
Functional classification (NYHA class)

Coding Guidelines

Usage Guidelines & Examples

Follow guidelines for distinguishing between HFrEF and HFpEF.
Common errors include misclassifying ejection fraction and incomplete documentation.

Code Exclusions

Important Exclusions

HFpEF (Heart Failure with preserved ejection fraction)
Acute decompensated heart failure without reduced ejection fraction

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

Patients with a history of coronary artery disease, hypertension, or diabetes.
Clinical settings include outpatient cardiology clinics and inpatient hospital care.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

What are the documentation requirements?

Document patient symptoms, diagnostic test results, and treatment plans.

What are the billing considerations?

Ensure accurate coding based on ejection fraction and clinical findings.

Hfref

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What are the documentation requirements?

What are the billing considerations?

Hfref

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What are the documentation requirements?

What are the billing considerations?