G31 Other degenerative diseases of nervous system, not elsewhere classified Notes: Primary progressive aphasia ; Progressive…

Other degenerative diseases of nervous system, not elsewhere classified
Notes: Primary progressive aphasia ; Progressive isolated aphasia ; Frontal dementia ; Alcoholic cerebellar ataxia ; Alcoholic cerebellar degeneration ; Alcoholic cerebral degeneration ; Alcoholic encephalopathy ; Dysfunction of the autonomic nervous system due to alcohol ; Grey-matter degeneration ; Subacute necrotizing encephalopathy ; Lewy body dementia ; Lewy body disease ; Mild cognitive disorder NOS ; Mild neurocognitive disorder of uncertain or unknown etiology ; For codes G31.0-G31.83, G31.85-G31.9, use additional code, if applicable, to identify: ; dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4) ; dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-) ; dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3) ; dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2) ; dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0) ; mild neurocognitive disorder due to known physiological condition (F06.7-) ; code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-) ; code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-) ; code to identify presence of: ; alcohol abuse and dependence (F10.-) ; exposure to environmental tobacco smoke (Z77.22) ; history of tobacco dependence (Z87.891) ; hypertension (I10-I16) ; occupational exposure to environmental tobacco smoke (Z57.31) ; tobacco dependence (F17.-) ; tobacco use (Z72.0) ; Alzheimer’s disease (G30.-) ; senility NOS (R41.81) ; age related cognitive decline (R41.81) ; altered mental status (R41.82) ; cerebral degeneration (G31.9) ; cerebrovascular diseases (I60-I69) ; 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 neurocognitive disorder due to a known physiological condition (F06.7-) ; neurologic neglect syndrome (R41.4) ; personality change, nonpsychotic (F68.8) ; Reye’s syndrome (G93.7)

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