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 Location Relevance (eCR) (http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.113883.10.20.15.2.5.6). E.g. what you have to deal with if you get resources containing codes in either of them