Table.4.
ICD-9-CM diagnostic codes used to identify subjects with dementia
| Diagnosis code | Description |
|---|---|
| 331.0 | Alzheimer’s disease |
| 331.11 | Pick’s disease |
| 331.19 | Other frontotemporal dementia |
| 331.2 | Senile degeneration of brain |
| 331.7 | Cerebral degeneration in diseases classified elsewhere |
| 290.0 | Senile dementia, uncomplicated |
| 290.10 | Presenile dementia, uncomplicated |
| 290.11 | Presenile dementia with delirium |
| 290.12 | Presenile dementia with delusional features |
| 290.13 | Presenile dementia with depressive features |
| 290.20 | Senile dementia with delusional features |
| 290.21 | Senile dementia with depressive features |
| 290.3 | Senile dementia with delirium |
| 290.40 | Vascular dementia, uncomplicated |
| 290.41 | Vascular dementia with delirium |
| 290.42 | Vascular dementia with delusions |
| 290.43 | Vascular dementia with depressed mood |
| 294.0 | Amnestic disorder in conditions classified elsewhere |
| 294.10 | Dementia in conditions classified elsewhere without behavioral disturbance |
| 294.11 | Dementia in conditions classified elsewhere with behavioral disturbance |
| 294.20 | Dementia, unspecified, without behavioral disturbance |
| 294.21 | Dementia, unspecified, with behavioral disturbance |
| 294.8 | Other persistent mental disorders due to conditions classified elsewhere |
| 797 | Senility without mention of psychosis |