| Value | Code Name | Code | Code System | Code Description |
|---|---|---|---|---|
| 0 | Normal speech and thought | Normal speech and thought | ||
| 1 | Slight retardation during the interview | Slight retardation during the interview | ||
| 2 | Obvious retardation during the interview | Obvious retardation during the interview | ||
| 3 | Interview difficult | Interview difficult | ||
| 4 | Complete stupor | Complete stupor |