ICD-10 Diagnosis Code F84.2

Rett's syndrome

Diagnosis Code F84.2

ICD-10: F84.2
Short Description: Rett's syndrome
Long Description: Rett's syndrome
This is the 2017 version of the ICD-10-CM diagnosis code F84.2

Code Classification
  • Mental and behavioural disorders
    • Pervasive and specific developmental disorders (F80-F89)
      • Pervasive developmental disorders (F84)

Information for Patients

Rett Syndrome

Rett syndrome is a rare genetic disease that causes developmental and nervous system problems, mostly in girls. It's related to autism spectrum disorder. Babies with Rett syndrome seem to grow and develop normally at first. Between 3 months and 3 years of age, though, they stop developing and even lose some skills. Symptoms include

  • Loss of speech
  • Loss of hand movements such as grasping
  • Compulsive movements such as hand wringing
  • Balance problems
  • Breathing problems
  • Behavior problems
  • Learning problems or intellectual disability

Rett syndrome has no cure. You can treat some of the symptoms with medicines, surgery, and physical and speech therapy. Most people with Rett syndrome live into middle age and beyond. They will usually need care throughout their lives.

NIH: National Institute of Child Health and Human Development

  • Rett syndrome

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Rett syndrome Rett syndrome is a brain disorder that occurs almost exclusively in girls. The most common form of the condition is known as classic Rett syndrome. After birth, girls with classic Rett syndrome have 6 to 18 months of apparently normal development before developing severe problems with language and communication, learning, coordination, and other brain functions. Early in childhood, affected girls lose purposeful use of their hands and begin making repeated hand wringing, washing, or clapping motions. They tend to grow more slowly than other children and have a small head size (microcephaly). Other signs and symptoms that can develop include breathing abnormalities, seizures, an abnormal side-to-side curvature of the spine (scoliosis), and sleep disturbances.Researchers have described several variant or atypical forms of Rett syndrome, which can be milder or more severe than the classic form.
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