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ICD-10 Guide
ICD-10 CodesQ25.40

Q25.40

Billable

Congenital malformation of aorta unspecified

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

Code Description

ICD-10 Q25.40 is a billable code used to indicate a diagnosis of congenital malformation of aorta unspecified.

Key Diagnostic Point:

Congenital malformation of the aorta unspecified refers to a range of structural abnormalities affecting the aorta, the major artery that carries blood from the heart to the rest of the body. These malformations can include conditions such as coarctation of the aorta, where a segment of the aorta is narrowed, leading to increased blood pressure before the coarctation and decreased blood flow beyond it. Other congenital heart defects may also be present, such as septal defects, which are openings in the heart's septum that can lead to abnormal blood flow between the heart chambers. Tetralogy of Fallot, a combination of four heart defects, may also coexist with aortic malformations. The clinical presentation can vary widely, from asymptomatic cases detected incidentally to severe cases presenting with heart failure or shock in neonates. Diagnosis typically involves echocardiography, MRI, or CT imaging to visualize the aorta and assess blood flow dynamics. Management may require surgical intervention, particularly in symptomatic patients, to correct the malformation and restore normal hemodynamics.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of aortic malformations
  • Potential for coexisting congenital heart defects
  • Need for detailed imaging studies for accurate diagnosis
  • Variability in surgical and non-surgical management options

Audit Risk Factors

  • Inadequate documentation of the specific type of aortic malformation
  • Failure to document associated congenital heart defects
  • Lack of clarity in the clinical rationale for surgical intervention
  • Inconsistent coding of related conditions

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed descriptions of the patient's clinical presentation, diagnostic imaging results, and any interventions performed. Growth and developmental assessments may also be relevant.

Common Clinical Scenarios

Common scenarios include a newborn presenting with cyanosis due to aortic coarctation or a child with a history of congenital heart disease requiring follow-up imaging.

Billing Considerations

Pediatric coders must be aware of the developmental implications of congenital heart defects and the need for ongoing monitoring and intervention.

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 malformations.

Billing Considerations

Genetic coders should consider the implications of chromosomal abnormalities that may predispose to congenital heart defects.

Coding Guidelines

Inclusion Criteria

Use Q25.40 When
  • According to ICD
  • CM guidelines, congenital malformations should be coded based on the specific anatomical site and type of defect
  • Documentation must support the diagnosis and any associated conditions

Exclusion Criteria

Do NOT use Q25.40 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

33405CPT Code

Repair of coarctation of aorta

Clinical Scenario

Used in cases where surgical intervention is required for coarctation of the aorta.

Documentation Requirements

Operative reports detailing the procedure and any complications.

Specialty Considerations

Pediatric cardiology may require additional documentation regarding the patient's growth and development post-surgery.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital malformations, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of congenital conditions and their outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital malformations, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of congenital conditions and their outcomes.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in better tracking of congenital conditions and their outcomes.

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 malformations accurately?

Accurate coding of congenital malformations is crucial for appropriate patient management, resource allocation, and research. It ensures that patients receive the necessary care and follow-up, and it helps healthcare providers understand the prevalence and outcomes of these conditions.