ICD-9 Diagnosis Code 331.82

Dementia w Lewy bodies

Diagnosis Code 331.82

ICD-9: 331.82
Short Description: Dementia w Lewy bodies
Long Description: Dementia with lewy bodies
This is the 2014 version of the ICD-9-CM diagnosis code 331.82

Code Classification
  • Diseases of the nervous system
    • Hereditary and degenerative diseases of the central nervous system (330-337)
      • 331 Other cerebral degenerations

Information for Medical Professionals

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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.
  • G31.83 - Dementia with Lewy bodies

Index of Diseases and Injuries
References found for the code 331.82 in the Index of Diseases and Injuries:

Information for Patients

Lewy Body Disease

Also called: Dementia with Lewy bodies

Lewy body disease is one of the most common causes of dementia in the elderly. Dementia is the loss of mental functions severe enough to affect normal activities and relationships. Lewy body disease happens when abnormal structures, called Lewy bodies, build up in areas of the brain. The disease may cause a wide range of symptoms, including

  • Changes in alertness and attention
  • Hallucinations
  • Problems with movement and posture
  • Muscle stiffness
  • Confusion
  • Loss of memory

Lewy body disease can be hard to diagnose, because Parkinson's disease and Alzheimer's disease cause similar symptoms. Scientists think that Lewy body disease might be related to these diseases, or that they sometimes happen together.

Lewy body disease usually begins between the ages of 50 and 85. The disease gets worse over time. There is no cure. Treatment focuses on drugs to help symptoms.

NIH: National Institute of Neurological Disorders and Stroke

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