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ICD-10 Guide
ICD-10 CodesChapter 17: Congenital malformations and chromosomal abnormalitiesQ92

Q92

Billable

Other trisomies and partial trisomies of the autosomes, not elsewhere classified

Chapter 17:Congenital malformations and chromosomal abnormalities

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

Code Description

ICD-10 Q92 is a billable code used to indicate a diagnosis of other trisomies and partial trisomies of the autosomes, not elsewhere classified.

Key Diagnostic Point:

Q92 encompasses a variety of congenital conditions characterized by the presence of an extra chromosome or a partial extra chromosome in the autosomes, which are the non-sex chromosomes. These conditions can lead to a range of developmental and physical abnormalities, depending on which chromosome is affected and the extent of the trisomy or partial trisomy. Unlike well-known syndromes such as Down syndrome (trisomy 21), Edwards syndrome (trisomy 18), and Patau syndrome (trisomy 13), Q92 covers less common trisomies that may not have specific codes. Clinical manifestations can include growth retardation, intellectual disability, congenital heart defects, and various dysmorphic features. Diagnosis typically involves karyotyping and genetic testing, and management may require a multidisciplinary approach, including pediatricians, geneticists, and other specialists to address the diverse needs of affected individuals.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of possible chromosomal abnormalities under this code
  • Need for precise genetic testing and interpretation
  • Potential overlap with other congenital conditions
  • Documentation requirements for specific trisomies

Audit Risk Factors

  • Inadequate documentation of genetic testing results
  • Misclassification of trisomy types
  • Failure to specify the affected chromosome
  • Inconsistent use of codes for related congenital conditions

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include growth parameters, developmental milestones, and any associated congenital anomalies.

Common Clinical Scenarios

Common scenarios include routine pediatric evaluations, referrals for developmental delays, and management of congenital heart defects.

Billing Considerations

Accurate coding requires detailed clinical notes that specify the nature of the trisomy and any associated conditions.

Genetics

Documentation Requirements

Genetic documentation must include karyotype results, family history, and any genetic counseling provided.

Common Clinical Scenarios

Scenarios may involve prenatal genetic testing, postnatal diagnosis of chromosomal abnormalities, and family planning discussions.

Billing Considerations

Geneticists must ensure that the specific trisomy is clearly documented to avoid coding errors.

Coding Guidelines

Inclusion Criteria

Use Q92 When
  • Official coding guidelines for congenital and chromosomal conditions emphasize the importance of accurate documentation of the specific trisomy or partial trisomy, including the affected chromosome and associated clinical features

Exclusion Criteria

Do NOT use Q92 When
No specific exclusions found.

Related CPT Codes

81220CPT Code

Chromosomal analysis, karyotype

Clinical Scenario

Used for confirming a diagnosis of trisomy or partial trisomy.

Documentation Requirements

Documentation must include the reason for testing and results.

Specialty Considerations

Geneticists should ensure that the specific trisomy is noted in the report.

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, including various trisomies, which enhances the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, including various trisomies, which enhances the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, including various trisomies, which enhances the ability to track and manage these conditions effectively.

Resources

Clinical References

  • •
    Genetics Home Reference
  • •
    American Academy of Pediatrics

Coding & Billing References

  • •
    Genetics Home Reference
  • •
    American Academy of Pediatrics

Frequently Asked Questions

What should I document when coding for Q92?

Document the specific trisomy or partial trisomy, associated clinical features, and results of any genetic testing performed. Ensure that the documentation supports the diagnosis and any related conditions.