Where used:
| Attribute | ACTIVITY PROPERTY EFFECTIVE TIME | references in description CRITICAL CARE LEVEL |
| Attribute | ESCALATION IN LEVEL OF PATIENT CARE FOLLOWING OESOPHAGECTOMY INDICATOR | references in description CRITICAL CARE LEVEL |
| Attribute | LOCATION OF HIGHEST LEVEL OF CARE FOR NATIONAL NEONATAL DATA SET | references in description CRITICAL CARE LEVEL |
| Class | ACTIVITY PROPERTY | has an attribute CRITICAL CARE LEVEL |
| Class | CRITICAL CARE PERIOD | references in description CRITICAL CARE LEVEL |
| Data Element | CRITICAL CARE LEVEL | references in description CRITICAL CARE LEVEL |
| Data Element | CRITICAL CARE LEVEL | is the data element of CRITICAL CARE LEVEL |
| Data Element | CRITICAL CARE LEVEL 2 DAYS | references in description CRITICAL CARE LEVEL |
| Data Element | CRITICAL CARE LEVEL 3 DAYS | references in description CRITICAL CARE LEVEL |
| Data Element | CRITICAL CARE UNIT FUNCTION | references in description CRITICAL CARE LEVEL |
| Data Element | LOCATION OF HIGHEST LEVEL OF CARE (NATIONAL NEONATAL DATA SET) | references in description CRITICAL CARE LEVEL |
| Supporting Information | Critical Care Minimum Data Set Overview | references in description CRITICAL CARE LEVEL |
| Supporting Information | Main Specialty and Treatment Function Codes Table | references in description CRITICAL CARE LEVEL |