Code
Hierarchy
Notes
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This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.
Inclusion Terms
F03.918
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Unspecified dementia, unspecified severity, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
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Major neurocognitive disorder NOS
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Presenile dementia NOS
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Presenile psychosis NOS
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Primary degenerative dementia NOS
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Senile dementia NOS
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Senile dementia depressed or paranoid type
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Senile psychosis NOS
Use Additional
F03.918
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code, if applicable, to identify wandering in unspecified dementia (Z91.83)
- Z91.83 Wandering in diseases classified elsewhere
Includes
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disorders of psychological development
Excludes 1
Excludes 2
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mild memory disturbance due to known physiological condition (F06.8)
- F06.8 Other specified mental disorders due to known physiological condition
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senile dementia with delirium or acute confusional state (F05)
- F05 Delirium due to known physiological condition
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symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
- R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)