| Column Name | Data Type | Nullable | Default value | Comments |
|---|---|---|---|---|
| HADM_ID | NUMBER | N | Table record unique identifier, the hospital admission ID | |
| SUBJECT_ID | NUMBER | N | The patient for the admission. | |
| ADM_DT | DATE | N | Date and time the patient was admitted to the ICU | |
| DISCH_DT | DATE | N | Date and time the patient was discharged from the ICU |