At the risk of being nitpicky, I notice a white space difference in the names of the value sets as listed in the structure view of this IG vs. R4 (e.g., "ImmunizationRecommendationStatusCodes" vs. "Immunization Recommendation Status Codes"), though the "Reference" links in the "Terminology Binding" section below it don't have any white space characters in either this IG or R4. I first wondered if that causes the IG authoring tool to call out those elements as diffs until I noticed the binding strength difference....
At the risk of being nitpicky, I notice a white space difference in the names of the value sets as listed in the structure view of this IG vs. R4 (e.g., "ImmunizationRecommendationStatusCodes" vs. "Immunization Recommendation Status Codes"), though the "Reference" links in the "Terminology Binding" section below it don't have any white space characters in either this IG or R4. I first wondered if that causes the IG authoring tool to call out those elements as diffs until I noticed the binding strength difference....