290.9
ICD-9-CMThis code represents a mental health condition characterized by significant cognitive decline and psychotic features (e.g., hallucinations, delusions) that are presumed to be related to the aging process, but without a more specific diagnosis of a particular type of dementia. It indicates a generalized deterioration of mental faculties accompanied by psychotic symptoms in an elderly individual.
This code is appropriate when documentation indicates a senile psychosis but lacks the specificity to assign a more definitive diagnosis such as Alzheimer's disease with psychotic features or vascular dementia with psychotic features. It should be used when the physician's assessment points to an age-related psychotic disorder without further diagnostic clarity.
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