This is the ValueSet that contains all the codes in Vital Sign Result Type (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.88.12.80.62) and Coded Race and Ethnicity Person Vital Records (http://hl7.org/fhir/us/vr-common-library/ValueSet/ValueSet-coded-race-and-ethnicity-person-vr). E.g. what you have to deal with if you get resources containing codes in either of them