G31.83

Neurocognitive disorder with Lewy bodies

A neurodegenerative disease characterized by dementia, mild parkinsonism, and fluctuations in attention and alertness. The neuropsychiatric manifestations tend to precede the onset of bradykinesia, muscle rigidity, and other extrapyramidal signs. Delusions and visual hallucinations are relatively frequent in this condition. Histologic examination reveals lewy bodies in the cerebral cortex and brain stem. Senile plaques and other pathologic features characteristic of alzheimer disease may also be present. from neurology 1997;48:376-380; neurology 1996;47:1113-1124)

A progressive form of dementia characterized by the presence of protein deposits called lewy bodies in the midbrain and cerebral cortex, and loss of cholinergic and dopaminergic neurons. The signs and symptoms overlap with alzheimer and parkinson disease.

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

Neurodegenerative disease marked by the presence of lewy body cells in the cerebral cortex and brain stem. Symptoms often include dementia, parkinsonianism, and striking fluctuations in cognitive performance.

G31.83 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

ICD-10-CM G31.83 is a revised 2023 ICD-10-CM code that became effective on October 1, 2022.

This is the American ICD-10-CM version of G31.83 – other international versions of ICD-10 G31.83 may differ.