ICD-10 Diagnosis Code A81.83

Fatal familial insomnia

Diagnosis Code A81.83

ICD-10: A81.83
Short Description: Fatal familial insomnia
Long Description: Fatal familial insomnia
This is the 2018 version of the ICD-10-CM diagnosis code A81.83

Valid for Submission
The code A81.83 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Certain infectious and parasitic diseases (A00–B99)
    • Viral and prion infections of the central nervous system (A80-A89)
      • Atypical virus infections of central nervous system (A81)

Information for Patients


Degenerative Nerve Diseases

Also called: Neurodegenerative diseases

Degenerative nerve diseases affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Many of these diseases are genetic. Sometimes the cause is a medical condition such as alcoholism, a tumor, or a stroke. Other causes may include toxins, chemicals, and viruses. Sometimes the cause is not known.

Degenerative nerve diseases include

  • Alzheimer's disease
  • Amyotrophic lateral sclerosis
  • Friedreich's ataxia
  • Huntington's disease
  • Lewy body disease
  • Parkinson's disease
  • Spinal muscular atrophy

Degenerative nerve diseases can be serious or life-threatening. It depends on the type. Most of them have no cure. Treatments may help improve symptoms, relieve pain, and increase mobility.

  • Multiple system atrophy (Medical Encyclopedia)
  • Progressive multifocal leukoencephalopathy (Medical Encyclopedia)


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Sleep Disorders

Is it hard for you to fall asleep or stay asleep through the night? Do you wake up feeling tired or feel very sleepy during the day, even if you have had enough sleep? You might have a sleep disorder. The most common kinds are

  • Insomnia - a hard time falling or staying asleep
  • Sleep apnea - breathing interruptions during sleep
  • Restless legs syndrome - a tingling or prickly sensation in the legs
  • Narcolepsy - daytime "sleep attacks"

Nightmares, night terrors, sleepwalking, sleep talking, head banging, wetting the bed and grinding your teeth are kinds of sleep problems called parasomnias. There are treatments for most sleep disorders. Sometimes just having good sleep habits can help.

  • Changing your sleep habits (Medical Encyclopedia)
  • Drowsiness (Medical Encyclopedia)
  • Idiopathic hypersomnia (Medical Encyclopedia)
  • Irregular sleep-wake syndrome (Medical Encyclopedia)
  • Isolated sleep paralysis (Medical Encyclopedia)
  • Medicines for sleep (Medical Encyclopedia)
  • Narcolepsy (Medical Encyclopedia)
  • Nightmares (Medical Encyclopedia)
  • Sleep and your health (Medical Encyclopedia)
  • Sleep disorders (Medical Encyclopedia)
  • Teenagers and sleep (Medical Encyclopedia)


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Prion disease Prion disease represents a group of conditions that affect the nervous system in humans and animals. In people, these conditions impair brain function, causing changes in memory, personality, and behavior; a decline in intellectual function (dementia); and abnormal movements, particularly difficulty with coordinating movements (ataxia). The signs and symptoms of prion disease typically begin in adulthood and worsen with time, leading to death within a few months to several years.
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