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v1.0.0
ICD-10 Guide
ICD-10 CodesQ23.0

Q23.0

Billable

Congenital stenosis of aortic valve

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 Q23.0 is a billable code used to indicate a diagnosis of congenital stenosis of aortic valve.

Key Diagnostic Point:

Congenital stenosis of the aortic valve is a heart defect present at birth that results in a narrowing of the aortic valve, which impedes blood flow from the heart into the aorta and subsequently to the rest of the body. This condition can lead to increased pressure in the left ventricle, which may cause hypertrophy (thickening of the heart muscle) and can result in heart failure if not managed appropriately. The severity of the stenosis can vary, with some infants presenting with critical symptoms requiring immediate intervention, while others may be asymptomatic for years. Diagnosis typically involves echocardiography, which can visualize the structure and function of the heart and assess the degree of stenosis. Treatment options may include surgical intervention, such as balloon valvuloplasty or aortic valve replacement, depending on the severity of the condition and the age of the patient. Long-term follow-up is essential to monitor for potential complications, including aortic regurgitation or the need for further surgical procedures.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of the condition
  • Need for detailed documentation of echocardiographic findings
  • Potential for associated congenital heart defects
  • Differentiation from acquired aortic stenosis in older children

Audit Risk Factors

  • Inadequate documentation of the severity of stenosis
  • Failure to document associated congenital anomalies
  • Misclassification of congenital versus acquired conditions
  • Lack of follow-up documentation post-surgery

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed clinical notes on the patient's growth, development, and any symptoms related to the heart defect. Echocardiogram reports and surgical notes are crucial.

Common Clinical Scenarios

Common scenarios include newborns presenting with heart murmurs, failure to thrive, or respiratory distress due to left ventricular outflow obstruction.

Billing Considerations

Consideration must be given to the age of the patient and the timing of interventions, as well as the potential for long-term complications.

Genetics

Documentation Requirements

Genetic documentation should include family history of congenital heart defects and any genetic syndromes associated with aortic stenosis.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of congenital heart disease or syndromic presentations.

Billing Considerations

Genetic testing may be indicated in cases where a syndromic cause is suspected, and documentation should reflect any findings.

Coding Guidelines

Inclusion Criteria

Use Q23.0 When
  • According to ICD
  • 10 guidelines, congenital conditions should be coded based on the specific anatomical and functional characteristics of the defect
  • Documentation must support the diagnosis and any associated conditions

Exclusion Criteria

Do NOT use Q23.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

93306CPT Code

Echocardiography, transthoracic, real-time with interpretation

Clinical Scenario

Used for initial diagnosis and follow-up of congenital heart defects.

Documentation Requirements

Echocardiogram reports must detail the findings related to the aortic valve.

Specialty Considerations

Pediatric cardiologists often perform these echocardiograms.

33405CPT Code

Aortic valve replacement, open heart surgery

Clinical Scenario

Performed in cases of severe aortic stenosis requiring surgical intervention.

Documentation Requirements

Operative reports must detail the procedure and any complications.

Specialty Considerations

Cardiothoracic surgeons are typically involved in these procedures.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital heart defects, including congenital stenosis of the aortic valve, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital heart defects, including congenital stenosis of the aortic valve, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Congenital Heart Disease

Coding & Billing References

  • •
    American Academy of Pediatrics - Congenital Heart Disease

Frequently Asked Questions

What is the difference between congenital aortic stenosis and acquired aortic stenosis?

Congenital aortic stenosis is present at birth and is often due to structural abnormalities of the aortic valve, such as a bicuspid valve. Acquired aortic stenosis typically develops later in life due to calcification or degeneration of the valve, often associated with aging or other conditions.