ICD-10 Diagnosis Code Q99.2

Fragile X chromosome

Diagnosis Code Q99.2

ICD-10: Q99.2
Short Description: Fragile X chromosome
Long Description: Fragile X chromosome
This is the 2017 version of the ICD-10-CM diagnosis code Q99.2

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities
    • Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
      • Other chromosome abnormalities, not elsewhere classified (Q99)

Information for Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Q99.2 is exempt from POA reporting.

  • Fragile X associated tremor ataxia syndrome
  • Fragile X chromosome
  • Fragile X syndrome
  • Multiple malformation syndrome with early overgrowth

Index of Diseases and Injuries
References found for the code Q99.2 in the Index of Diseases and Injuries:

Information for Patients

Fragile X Syndrome

Also called: FRAXA, FXS

Fragile 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 changes can have severe symptoms. These might include

  • Intelligence problems, ranging from learning disabilities to severe intellectual disabilities
  • Social and emotional problems, such as aggression in boys or shyness in girls
  • Speech and language problems, especially in boys

A genetic blood test can diagnose Fragile X. There is no cure. You can treat some symptoms with educational, behavioral, or physical therapy, and with medicines. Getting treatment early can help.

NIH: National Institute of Child Health and Human Development

  • Fragile X syndrome

[Read More]

Fragile X syndrome Fragile X syndrome is a genetic condition that causes a range of developmental problems including learning disabilities and cognitive impairment. Usually, males are more severely affected by this disorder than females.Affected individuals usually have delayed development of speech and language by age 2. Most males with fragile X syndrome have mild to moderate intellectual disability, while about one-third of affected females are intellectually disabled. Children with fragile X syndrome may also have anxiety and hyperactive behavior such as fidgeting or impulsive actions. They may have attention deficit disorder (ADD), which includes an impaired ability to maintain attention and difficulty focusing on specific tasks. About one-third of individuals with fragile X syndrome have features of autism spectrum disorders that affect communication and social interaction. Seizures occur in about 15 percent of males and about 5 percent of females with fragile X syndrome.Most males and about half of females with fragile X syndrome have characteristic physical features that become more apparent with age. These features include a long and narrow face, large ears, a prominent jaw and forehead, unusually flexible fingers, flat feet, and in males, enlarged testicles (macroorchidism) after puberty.
[Read More]
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