Comparison of Interoperable Digital Identity and Patient Matching with US-Core

The following Profiles do not derive from US Core, and should be reviewed with the US Realm Committee:

• IDI Patient L0
• IDI Patient L1
• IDI Patient
• VerAtt Patient

US Realm	Current Build	Difference	Union	Intersection	Notes
ValueSets
IdentifierType	Identity Identifier Value Set	Comparison	Union	Intersection	2 Breaking Changes, 0 Changes, 9 Notes
Language codes with language and optionally a region modifier	Common Languages	Comparison	Union	Intersection	63 Breaking Changes, 0 Changes, 8 Notes
StructureDefinitions
US Core Patient Profile	IDI Patient L0	Comparison	Union	Intersection	2 Breaking Changes, 8 Changes, 48 Notes
US Core Patient Profile	IDI Patient L1	Comparison	Union	Intersection	2 Breaking Changes, 8 Changes, 48 Notes
US Core Patient Profile	IDI Patient	Comparison	Union	Intersection	2 Breaking Changes, 8 Changes, 48 Notes
US Core Patient Profile	VerAtt Patient	Comparison	Union	Intersection	2 Breaking Changes, 18 Changes, 26 Notes