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
What this means — in plain language
MedlinePlus · NIHFragile X syndrome is the most common form of inherited developmental disability . A problem with a specific gene causes the disease. Normally, the gene makes a protein you need for brain development. But the problem causes a person to make little or none of the protein. This causes the symptoms of Fragile X. People with only a small change in the gene might not show any signs of Fragile X. People with bigger…
Read more about Fragile X Syndrome at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
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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