This is the ValueSet that contains all the codes in Body Temperature Measurement Body Location value set (https://hl7.fr/ig/fhir/core/ValueSet/fr-core-vsbody-temp-meas-body-location) and Body Temperature Measurement Body Location value set (https://hl7.fr/ig/fhir/core/ValueSet/fr-core-vsbody-temp-meas-body-location). E.g. what you have to deal with if you get resources containing codes in either of them