Intersection of http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.6 and http://hl7.org/fhir/ValueSet/observation-codes
This is the ValueSet that contains codes in both Smoking Status Type (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.6) and LOINC Codes (http://hl7.org/fhir/ValueSet/observation-codes).