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ICD-10 Guide
DiagnosesAortic Valve Regurgitation

Aortic Valve Regurgitation

ICD-10 Coding for Aortic Valve Regurgitation(I35.1, Q23.83)

PRIMARY SPECIALTYCardiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Aortic Valve Regurgitation?
Essential facts and insights about Aortic Valve Regurgitation

Key Clinical Considerations:

  • Presence of characteristic symptoms such as dyspnea, fatigue, palpitations, and chest pain.
  • Echocardiographic findings showing retrograde flow through the aortic valve during diastole.
  • Physical examination may reveal a diastolic murmur best heard at the left sternal border.
  • Imaging findings may include left ventricular dilation and hypertrophy on echocardiogram or MRI.
  • Severity is often classified as mild, moderate, or severe based on the volume of regurgitant flow and left ventricular function.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Complete medical history including onset and duration of symptoms.
  • Specific terminology such as 'aortic valve regurgitation' must be used in documentation.
  • Examples include noting the severity of regurgitation and any associated heart failure symptoms.
  • Documentation must support medical necessity for diagnostic tests and treatments.
  • Quality measures may include documentation of symptom assessment and follow-up care plans.

Coding Guidelines

Usage Guidelines & Examples

  • Use I35.1 for chronic aortic valve regurgitation and Q23.83 for congenital aortic regurgitation.
  • Do not use I35.1 for acute aortic regurgitation due to infective endocarditis; use I33.0 instead.
  • I35.0 (aortic stenosis) and I35.2 (aortic valve insufficiency) are related but distinct codes.
  • Common errors include misclassifying acute versus chronic conditions; ensure clinical context is clear.
  • In complex cases, consider the patient's overall cardiac function and any coexisting conditions.

Code Exclusions

Important Exclusions

  • Acute aortic regurgitation due to infective endocarditis (use I33.0).
  • Aortic stenosis (use I35.0) should not be coded with I35.1.
  • Conditions are excluded to ensure accurate representation of the patient's clinical status.
  • Avoid confusion between chronic and acute conditions; clarify in documentation.
  • Related conditions include mitral valve prolapse and tricuspid regurgitation, which are distinct.

Related ICD-10 Codes

Primary Codes
I35.1
Chronic aortic valve regurgitation
Q23.83
Congenital aortic regurgitation
Ancillary Codes
Q23.83
Differential Codes
I06.1

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • Patients with chronic aortic valve regurgitation, often seen in adults.
  • Higher prevalence in males and those with a history of rheumatic fever or connective tissue disorders.
  • Clinical settings include outpatient cardiology clinics and inpatient cardiology units.
  • Specialty applications in cardiology, particularly in valve surgery and heart failure management.
  • Treatment contexts include medical management and surgical intervention for severe cases.

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

Template 1

Template: 'Patient diagnosed with aortic valve regurgitation based on echocardiographic findings.'

Template 2

Template: 'Clinical presentation consistent with aortic valve regurgitation including dyspnea and fatigue.'

Template 3

Template: 'Diagnostic criteria met as evidenced by echocardiogram showing severe regurgitation.'

Template 4

Template: 'Treatment plan initiated for aortic valve regurgitation with medication and follow-up echocardiogram.'

Template 5

Template: 'Follow-up care for aortic valve regurgitation including monitoring of left ventricular function.'

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 documentation is required for this diagnosis?

Document clinical findings, diagnostic tests, and treatment plans.

How does this differ from similar diagnoses?

Aortic regurgitation is characterized by backward flow, unlike stenosis.

What are common billing considerations?

Ensure documentation supports the medical necessity of tests and treatments.

What procedures are typically associated?

CPT codes for echocardiograms, valve repair, or replacement may apply.

Are there any quality reporting implications?

Quality measures may include monitoring of symptoms and follow-up care.