Q99.2
BillableFragile X chromosome
Q99.2 is the ICD-10-CM code for Fragile X chromosome. It is a billable, specific code valid for reimbursement.
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
Includes
- •Fragile X syndrome
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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