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v1.0.0
ICD-10 Guide
ICD-10 CodesQ92.0

Q92.0

Billable

Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)

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

Code Description

ICD-10 Q92.0 is a billable code used to indicate a diagnosis of whole chromosome trisomy, nonmosaicism (meiotic nondisjunction).

Key Diagnostic Point:

Whole chromosome trisomy, nonmosaicism, is a chromosomal abnormality characterized by the presence of an extra chromosome in all cells of an individual, resulting from meiotic nondisjunction during gamete formation. This condition leads to a total of three copies of a specific chromosome, which can significantly impact development and health. Common examples include trisomy 21 (Down syndrome), trisomy 18 (Edwards syndrome), and trisomy 13 (Patau syndrome). The clinical manifestations vary widely depending on the specific chromosome involved, but may include developmental delays, congenital heart defects, and distinct physical features. Diagnosis is typically made through karyotyping, which reveals the chromosomal makeup of the individual. Management often involves a multidisciplinary approach, including pediatricians, geneticists, and specialists in various fields to address the complex needs of affected individuals. Early intervention and supportive care are crucial for improving outcomes and quality of life.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation based on the specific trisomy involved.
  • Need for precise documentation of genetic testing results.
  • Differentiation from mosaic forms of trisomy.
  • Potential for co-occurring congenital anomalies requiring additional coding.

Audit Risk Factors

  • Inadequate documentation of genetic testing results.
  • Misclassification of mosaic versus nonmosaic trisomy.
  • Failure to capture associated congenital anomalies.
  • Inconsistent coding practices across different healthcare settings.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed growth and developmental assessments, including milestones and any associated health issues.

Common Clinical Scenarios

Routine pediatric evaluations, referrals for developmental delays, and management of congenital heart defects.

Billing Considerations

Attention to the psychosocial aspects of care and family support needs.

Genetics

Documentation Requirements

Comprehensive family history, results of genetic counseling sessions, and detailed karyotype reports.

Common Clinical Scenarios

Prenatal genetic testing consultations and postnatal evaluations for chromosomal abnormalities.

Billing Considerations

Understanding the implications of genetic findings for family planning and potential recurrence risks.

Coding Guidelines

Inclusion Criteria

Use Q92.0 When
  • Follow the ICD
  • CM guidelines for coding congenital conditions, ensuring accurate documentation of the diagnosis and any associated conditions
  • Use additional codes as necessary to capture co
  • occurring congenital anomalies

Exclusion Criteria

Do NOT use Q92.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

81228CPT Code

Chromosomal analysis, karyotype

Clinical Scenario

Used to confirm diagnosis of trisomy.

Documentation Requirements

Karyotype report detailing the chromosomal makeup.

Specialty Considerations

Geneticists should ensure accurate interpretation of results.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chromosomal abnormalities, improving the accuracy of diagnoses and facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chromosomal abnormalities, improving the accuracy of diagnoses and facilitating better patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of chromosomal abnormalities, improving the accuracy of diagnoses and facilitating better patient management.

Resources

Clinical References

  • •
    Genetics Home Reference
  • •
    American Academy of Pediatrics

Coding & Billing References

  • •
    Genetics Home Reference
  • •
    American Academy of Pediatrics

Frequently Asked Questions

What is the significance of coding for whole chromosome trisomy?

Accurate coding for whole chromosome trisomy is crucial for appropriate patient management, resource allocation, and understanding the epidemiology of chromosomal abnormalities. It also aids in research and the development of targeted therapies.