Intersection of http://hl7.org/fhir/ValueSet/route-codes and http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.22
This is the ValueSet that contains codes in both SNOMED CT Route Codes (http://hl7.org/fhir/ValueSet/route-codes) and Route of Administration of Therapeutic Agents (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.22).