ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesQ24.9

Q24.9

Billable

Congenital malformation of heart, unspecified

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

Code Description

ICD-10 Q24.9 is a billable code used to indicate a diagnosis of congenital malformation of heart, unspecified.

Key Diagnostic Point:

Congenital malformations of the heart encompass a wide range of structural abnormalities present at birth that affect the heart's function and structure. These defects can involve the heart walls, valves, arteries, and veins. Common congenital heart defects include septal defects, such as atrial septal defect (ASD) and ventricular septal defect (VSD), which are characterized by abnormal openings between the heart chambers. Tetralogy of Fallot, a complex condition, includes four specific heart defects that result in insufficient oxygenated blood reaching the body. Coarctation of the aorta is another significant defect where a portion of the aorta is narrowed, leading to increased blood pressure before the narrowing and decreased blood flow beyond it. The severity of these conditions can vary widely, with some requiring immediate surgical intervention and others being monitored over time. Accurate coding is essential for appropriate management and treatment planning, as well as for research and epidemiological purposes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of congenital heart defects.
  • Need for detailed documentation to differentiate between specific types of congenital heart defects.
  • Potential for multiple congenital anomalies that may complicate coding.
  • Variability in treatment approaches and follow-up care based on specific defects.

Audit Risk Factors

  • Inadequate documentation of the specific type of congenital heart defect.
  • Failure to capture associated conditions or anomalies.
  • Incorrect coding due to lack of clarity in clinical notes.
  • Misinterpretation of diagnostic tests and imaging results.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation must include detailed descriptions of the heart defect, associated symptoms, and any interventions performed.

Common Clinical Scenarios

Common scenarios include newborns diagnosed with congenital heart defects during routine examinations or through echocardiography.

Billing Considerations

Consideration must be given to the age of the patient and the timing of diagnosis, as some defects may not present until later in childhood.

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 chromosomal abnormalities.

Billing Considerations

Genetic factors may play a significant role in the occurrence of congenital heart defects, necessitating thorough documentation of genetic evaluations.

Coding Guidelines

Inclusion Criteria

Use Q24.9 When
  • According to ICD
  • CM guidelines, congenital conditions should be coded based on the specific defect identified
  • If the defect is unspecified, Q24
  • 9 is appropriate, but coders should strive for specificity when possible
  • Documentation must support the diagnosis and any associated conditions

Exclusion Criteria

Do NOT use Q24.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

93306CPT Code

Echocardiography, transthoracic, real-time with interpretation

Clinical Scenario

Used for diagnosing congenital heart defects in pediatric patients.

Documentation Requirements

Documentation must include the indication for the echocardiogram and findings.

Specialty Considerations

Pediatric cardiology may have specific protocols for echocardiographic evaluations.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specificity in coding congenital heart defects, improving data accuracy and patient care. However, it has also introduced complexity, requiring coders to be more diligent in documentation and coding practices.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specificity in coding congenital heart defects, improving data accuracy and patient care. However, it has also introduced complexity, requiring coders to be more diligent in documentation and coding practices.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Congenital Heart Defects

Coding & Billing References

  • •
    American Academy of Pediatrics - Congenital Heart Defects

Frequently Asked Questions

What should I do if the specific type of congenital heart defect is not documented?

If the specific type of congenital heart defect is not documented, it is appropriate to use Q24.9. However, it is crucial to communicate with the healthcare provider to obtain more detailed information to ensure accurate coding in the future.