Intersection of http://hl7.org/fhir/ValueSet/observation-codes and http://hl7.eu/fhir/eps/ValueSet/gestational-age-loinc
This is the ValueSet that contains codes in both LOINC Codes (http://hl7.org/fhir/ValueSet/observation-codes) and Gestational Age (LOINC) (http://hl7.eu/fhir/eps/ValueSet/gestational-age-loinc).