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v1.0.0
ICD-10 Guide
ICD-10 CodesQ92.9

Q92.9

Billable

Trisomy and partial trisomy of autosomes, unspecified

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

Code Description

ICD-10 Q92.9 is a billable code used to indicate a diagnosis of trisomy and partial trisomy of autosomes, unspecified.

Key Diagnostic Point:

Trisomy and partial trisomy of autosomes refers to a chromosomal abnormality where there is an extra chromosome or a portion of a chromosome present in the cells of an individual. This condition can lead to various developmental and physical anomalies, depending on which chromosome is affected and the extent of the trisomy. Common manifestations may include growth delays, intellectual disabilities, and distinct facial features. The severity and range of symptoms can vary widely among individuals, making diagnosis and management complex. Trisomy can occur in any of the 22 pairs of autosomes, and while some specific trisomies are well-characterized (such as Trisomy 21, 18, and 13), this code is used when the specific trisomy is not identified or documented. Accurate coding requires careful review of genetic testing results and clinical findings to ensure appropriate management and follow-up.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms.
  • Need for genetic testing results to confirm diagnosis.
  • Differentiation from other chromosomal abnormalities.
  • Documentation of associated congenital anomalies.

Audit Risk Factors

  • Inadequate documentation of genetic testing results.
  • Failure to specify the type of trisomy when known.
  • Misclassification of trisomy types leading to incorrect coding.
  • Lack of comprehensive clinical notes detailing associated conditions.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include growth parameters, developmental milestones, and any associated congenital anomalies. Detailed clinical notes are essential for understanding the child's overall health status.

Common Clinical Scenarios

Common scenarios include routine pediatric evaluations, referrals for developmental delays, and management of associated health issues such as cardiac defects.

Billing Considerations

Pediatric coders must be aware of the age-related implications of trisomy conditions and how they affect growth and development.

Genetics

Documentation Requirements

Genetic documentation must include results from chromosomal analysis, family history, and any genetic counseling provided. Detailed notes on the implications of the findings are crucial.

Common Clinical Scenarios

Scenarios include genetic counseling sessions, prenatal testing discussions, and follow-up appointments for patients with diagnosed trisomy.

Billing Considerations

Genetic coders should ensure that all relevant genetic tests are documented and that the implications of the trisomy are clearly articulated.

Coding Guidelines

Inclusion Criteria

Use Q92.9 When
  • Official coding guidelines for congenital and chromosomal conditions emphasize the importance of specificity in diagnosis
  • Coders should ensure that all relevant clinical information is documented and that the code reflects the patient's current health status accurately

Exclusion Criteria

Do NOT use Q92.9 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 conditions.

Documentation Requirements

Documentation of the reason for testing and results.

Specialty Considerations

Genetic specialists should ensure that all findings are clearly documented.

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 ability to track and manage trisomy cases. However, it has also introduced complexity in ensuring accurate documentation and coding practices.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to track and manage trisomy cases. However, it has also introduced complexity in ensuring accurate documentation and coding practices.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to track and manage trisomy cases. However, it has also introduced complexity in ensuring accurate documentation and coding practices.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Coding for Pediatric Care
  • •
    Genetics Home Reference - Chromosomal Abnormalities

Coding & Billing References

  • •
    American Academy of Pediatrics - Coding for Pediatric Care
  • •
    Genetics Home Reference - Chromosomal Abnormalities

Frequently Asked Questions

What should I do if the specific trisomy is not documented?

If the specific trisomy is not documented, use Q92.9. However, ensure that all available clinical information is included to support the diagnosis. If genetic testing results are available, they should be referenced in the documentation.

How do I differentiate between trisomy and other chromosomal abnormalities?

Trisomy involves the presence of an extra chromosome, while other chromosomal abnormalities may involve structural changes or missing chromosomes. Review genetic testing results and clinical findings to accurately code.