ICD-9 Diagnosis Code 333.4

Huntington's chorea

Diagnosis Code 333.4

ICD-9: 333.4
Short Description: Huntington's chorea
Long Description: Huntington's chorea
This is the 2014 version of the ICD-9-CM diagnosis code 333.4

Code Classification
  • Diseases of the nervous system (320–359)
    • Hereditary and degenerative diseases of the central nervous system (330-337)
      • 333 Other extrapyramidal disease and abnormal movement disorders

Information for Medical Professionals

Convert to ICD-10 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.
  • G10 - Huntington's disease

Index of Diseases and Injuries
References found for the code 333.4 in the Index of Diseases and Injuries:

Information for Patients

Huntington's Disease

Also called: HD, Huntington's chorea

Huntington's disease (HD) is an inherited disease that causes certain nerve cells in the brain to waste away. People are born with the defective gene, but symptoms usually don't appear until middle age. Early symptoms of HD may include uncontrolled movements, clumsiness, and balance problems. Later, HD can take away the ability to walk, talk, and swallow. Some people stop recognizing family members. Others are aware of their environment and are able to express emotions.

If one of your parents has Huntington's disease, you have a 50 percent chance of getting it. A blood test can tell you if have the HD gene and will develop the disease. Genetic counseling can help you weigh the risks and benefits of taking the test.

There is no cure. Medicines can help manage some of the symptoms, but cannot slow down or stop the disease.

NIH: National Institute of Neurological Disorders and Stroke

  • Huntington's disease
  • Swallowing problems

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