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v1.0.0
ICD-10 Guide
ICD-10 CodesQ25.43

Q25.43

Billable

Congenital aneurysm of aorta

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

Code Description

ICD-10 Q25.43 is a billable code used to indicate a diagnosis of congenital aneurysm of aorta.

Key Diagnostic Point:

Congenital aneurysm of the aorta is a rare vascular malformation characterized by an abnormal dilation of the aorta that is present at birth. This condition can occur in isolation or in conjunction with other congenital heart defects, such as coarctation of the aorta, ventricular septal defects, or tetralogy of Fallot. The aneurysm may affect any segment of the aorta, including the ascending aorta, aortic arch, or descending aorta. Clinical manifestations can vary widely, ranging from asymptomatic cases discovered incidentally to severe complications such as aortic rupture or dissection, which can be life-threatening. Diagnosis typically involves imaging studies such as echocardiography, MRI, or CT scans. Management may include surgical intervention, particularly in symptomatic patients or those with significant aneurysm size. Long-term follow-up is essential due to the risk of associated cardiovascular complications and the potential for progressive aortic dilation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated congenital conditions
  • Need for precise imaging documentation
  • Potential for surgical intervention coding
  • Differentiation from acquired aneurysms

Audit Risk Factors

  • Inadequate documentation of imaging studies
  • Failure to document associated congenital conditions
  • Misclassification of congenital vs. acquired conditions
  • Lack of follow-up documentation post-surgery

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed clinical history, physical examination findings, and results from imaging studies. Growth and developmental assessments are also important.

Common Clinical Scenarios

Common scenarios include a newborn presenting with a heart murmur, a child with failure to thrive due to cardiac issues, or a teenager with a known congenital heart defect undergoing routine evaluation.

Billing Considerations

Coders must ensure that all congenital conditions are documented, including any associated anomalies, to accurately reflect the patient's clinical picture.

Genetics

Documentation Requirements

Genetic documentation should include family history, genetic testing results, and any syndromic associations with congenital heart defects.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of congenital heart defects or syndromes associated with aortic aneurysms.

Billing Considerations

Consideration must be given to the potential genetic syndromes that may predispose patients to congenital aneurysms, such as Marfan syndrome or Turner syndrome.

Coding Guidelines

Inclusion Criteria

Use Q25.43 When
  • According to ICD
  • CM guidelines, congenital conditions should be coded based on the specific anatomical site and any associated conditions
  • Documentation must support the diagnosis and any interventions performed

Exclusion Criteria

Do NOT use Q25.43 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

33405CPT Code

Repair of aortic aneurysm

Clinical Scenario

Used when surgical intervention is performed for a congenital aneurysm.

Documentation Requirements

Operative reports detailing the procedure and indications for surgery.

Specialty Considerations

Pediatric cardiology and surgery must collaborate for accurate coding.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes. Q25.43 provides a distinct code for congenital aneurysms, which was less clearly defined in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes. Q25.43 provides a distinct code for congenital aneurysms, which was less clearly defined in ICD-9.

Reimbursement & Billing Impact

reimbursement processes. Q25.43 provides a distinct code for congenital aneurysms, which was less clearly defined in ICD-9.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the significance of coding congenital aneurysms accurately?

Accurate coding of congenital aneurysms is crucial for appropriate patient management, resource allocation, and understanding the epidemiology of congenital heart defects. It also impacts reimbursement and quality of care metrics.