ICD-10 Coding for Fragile X Syndrome(Q99.2)
Complete ICD-10-CM coding and documentation guide for Fragile X Syndrome. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Fragile X Syndrome
Q99.2Primary Range
Fragile X chromosome/Fragile X syndrome
Primary code for confirmed Fragile X syndrome diagnosis.
Intellectual disabilities
Used for intellectual disability associated with Fragile X syndrome.
Key Information: ICD-10 code for Fragile X syndrome
Essential facts and insights about Fragile X Syndrome
Primary ICD-10-CM Code for fragile xanthosine syndrome
Decision Criteria
clinical Criteria
- Presence of >200 CGG repeats in FMR1 gene with methylation
documentation Criteria
- Detailed genetic testing results and clinical features
Applicable To
- Fragile X syndrome
Excludes
- Other chromosomal abnormalities
Clinical Validation Requirements
- CGG repeat expansion in FMR1 gene confirmed by PCR/Southern blot
- Clinical features such as macroorchidism, elongated face, and ASD
Code-Specific Risks
- Using Q99.2 without genetic confirmation
- Misclassifying premutation carriers
Coding Notes
- Ensure genetic testing results are documented to support the use of Q99.2.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Other specified chromosomal abnormalities
Q99.8Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Fragile X Syndrome to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code Q99.2.
Impact
Clinical: Misdiagnosis or delayed diagnosis of Fragile X syndrome., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.
Mitigation Strategy
Ensure detailed genetic testing results are included.
Impact
Reimbursement: Incorrect coding can lead to reduced reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on the prevalence of Fragile X syndrome.
Mitigation Strategy
Use Q99.2 when Fragile X syndrome is confirmed by genetic testing.
Impact
Lack of detailed genetic testing results in records.
Mitigation Strategy
Implement a checklist for genetic testing documentation.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Fragile X Syndrome, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Fragile X Syndrome
Use these documentation templates to ensure complete and accurate documentation for Fragile X Syndrome. These templates include all required elements for proper coding and billing.
Pediatric Evaluation
Specialty: PediatricsRequired Elements
- Genetic testing results
- Clinical features
- Family history
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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