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with Parkinsonism

Lewy body dementia

Lewy body disease

G31.84 Mild cognitive impairment, so stated

Excludes1: age related cognitive decline (R41.81)

altered mental status (R41.82)

cerebral degeneration (G31.9)

change in mental status (R41.82)

cognitive deficits following (sequelae of) cerebral hemorrhage or infarction (I69.01, I69.11, I69.21, I69.31, I69.81, I69.91)

cognitive impairment due to intracranial or head injury (S06.-)

dementia (F01.-, F02.-, F03)

mild memory disturbance (F06.8)

neurologic neglect syndrome (R41.4)

personality change, nonpsychotic (F68.8)

G31.89 Other specified degenerative diseases of nervous system

G31.9 Degenerative disease of nervous system, unspecified

G32.0 Subacute combined degeneration of spinal cord in diseases classified elsewhere

Dana-Putnam syndrome

Sclerosis of spinal cord (combined) (dorsolateral) (posterolateral)

Code first underlying disease, such as:

vitamin B12 deficiency (E53.8)

anemia (D51.9)

dietary (D51.3)

pernicious (D51.0)

Excludes1: syphilitic combined degeneration of spinal cord (A52.11)

G32.8 Other specified degenerative disorders of nervous system in diseases classified elsewhere

Degenerative encephalopathy in diseases classified elsewhere

Code first underlying disease, such as:

cerebral degeneration (due to):

amyloid (E85.-)

hypothyroidism (E00.-, E03.-)

neoplasm (C00-D48)

vitamin B deficiency, except thiamine (E52-E53.-)

Excludes1: superior hemorrhagic polioencephalitis [Wernicke's encephalopathy] (E51.2)

=Demyelinating