Intersection of http://hl7.org/fhir/ValueSet/ucum-vitals-common and http://hl7.org/fhir/ValueSet/iso3166-1-2
This is the ValueSet that contains codes in both Vital Signs Units (http://hl7.org/fhir/ValueSet/ucum-vitals-common) and Iso 3166 Part 1: 2 Letter Codes (http://hl7.org/fhir/ValueSet/iso3166-1-2).