ICD-9-CM

Includes:

psychotic organic brain syndrome

Excludes:

nonpsychotic syndromes of organic etiology (310.0-310.9)

psychoses classifiable to 295-298 and without impairment of orientation, comprehension, calculation, learning capacity, and judgement, but associated with physical disease, injury, or condition affecting the brain [e.g., following childbirth] (295.0-298.8)

294 Persistent mental disorders due to conditions classified elsewhere Includes: organic psychotic brain syndromes (chronic), not elsewhere classified
294.0: Amnestic disorder in conditions classified elsewhere Korsakoff's psychosis or syndrome (nonalcoholic) Code first underlying condition Excludes: alcoholic: amnestic syndrome (291.1) Korsakoff's psychosis (291.1)
294.1: Dementia in conditions classified elsewhere Dementia of the Alzheimer's type Code first any underlying physical condition as: Alzheimer's disease (331.0) cerebral lipidoses (330.1) dementia with Lewy bodies (331.82) dementia with Parkinsonism (331.82) epilepsy (345.0-345.9) frontal dementia (331.19) frontotemporal dementia (331.19) general paresis [syphilis] (094.1) hepatolenticular degeneration (275.1) Huntington's chorea (333.4) Jakob-Creutzfeldt disease (046.11-046.19) multiple sclerosis (340) Parkinson's disease (332.0) Pick's disease of the brain (331.11) polyarteritis nodosa (446.0) syphilis (094.1) Excludes: dementia: arteriosclerotic (290.40-290.43) presenile (290.10-290.13) senile (290.0) epileptic psychosis NOS (294.8)
294.2: Dementia, unspecified Excludes: mild memory disturbances, not amounting to dementia (310.89)
294.8: Other persistent mental disorders due to conditions classified elsewhere Amnestic disorder NOS Epileptic psychosis NOS Mixed paranoid and affective organic psychotic states Use additional code for associated epilepsy (345.0-345.9) Excludes: mild memory disturbances, not amounting to dementia (310.89)
294.9: Unspecified persistent mental disorders due to conditions classified elsewhere Cognitive disorder NOS Organic psychosis (chronic)

294 Persistent mental disorders due to conditions classified elsewhere

Includes:

organic psychotic brain syndromes (chronic), not elsewhere classified

294.0: Amnestic disorder in conditions classified elsewhere

Korsakoff's psychosis or syndrome (nonalcoholic)

Code first underlying condition

Excludes:

alcoholic:

amnestic syndrome (291.1)

Korsakoff's psychosis (291.1)

294.1: Dementia in conditions classified elsewhere

Dementia of the Alzheimer's type

Code first any underlying physical condition as:

Alzheimer's disease (331.0)

cerebral lipidoses (330.1)

dementia with Lewy bodies (331.82)

dementia with Parkinsonism (331.82)

epilepsy (345.0-345.9)

frontal dementia (331.19)

frontotemporal dementia (331.19)

general paresis [syphilis] (094.1)

hepatolenticular degeneration (275.1)

Huntington's chorea (333.4)

Jakob-Creutzfeldt disease (046.11-046.19)

multiple sclerosis (340)

Parkinson's disease (332.0)

Pick's disease of the brain (331.11)

polyarteritis nodosa (446.0)

syphilis (094.1)

Excludes:

dementia:

arteriosclerotic (290.40-290.43)

presenile (290.10-290.13)

senile (290.0)

epileptic psychosis NOS (294.8)

294.2: Dementia, unspecified

Excludes:

mild memory disturbances, not amounting to dementia (310.89)

294.8: Other persistent mental disorders due to conditions classified elsewhere

Amnestic disorder NOS

Epileptic psychosis NOS

Mixed paranoid and affective organic psychotic states

Use additional code for associated epilepsy (345.0-345.9)

Excludes:

mild memory disturbances, not amounting to dementia (310.89)