| Format/Length: | max n4 | 
| National Codes: | |
| Default Codes: | 
Notes:
NUMBER OF DAYS ON VENTILATION is the number of days that the donor was on ventilation where the DATES and TIMES of starting and/or stopping ventilation are unknown.
Data Field Notes
| Format/Length: | max n4 | 
| National Codes: | |
| Default Codes: | 
