| US Realm | Current Build | Difference | Notes | 
| ValueSets | 
| Vital Signs | LOINC Codes | Comparison | 1 Breaking Change, 0 Changes, 1032 Notes | 
| US Core Status for Smoking Status Observation | ObservationStatus | Comparison | 2 Breaking Changes, 0 Changes, 16 Notes | 
| US Core Smoking Status Observation Codes | LOINC Codes | Comparison | 2 Breaking Changes, 0 Changes, 1011 Notes | 
| StructureDefinitions | 
| US Core Pediatric Head Occipital-frontal Circumference Percentile Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 11 Breaking Changes, 19 Changes, 7 Notes | 
| US Core Pediatric BMI for Age Observation Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 11 Breaking Changes, 19 Changes, 7 Notes | 
| US Core Pediatric Weight for Height Observation Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 11 Breaking Changes, 19 Changes, 7 Notes | 
| US Core Laboratory Result Observation Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 5 Breaking Changes, 7 Changes, 7 Notes | 
| US Core Pulse Oximetry Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 12 Breaking Changes, 19 Changes, 7 Notes | 
| US Core Smoking Status Observation Profile | SDOHCC Observation ScreeningResponseBase 1 | Comparison | 8 Breaking Changes, 2 Changes, 7 Notes |