This is the ValueSet that contains codes in both Answer Set with Yes No and Unknowns (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.16) and LOINC POLST review Answer List (http://hl7.org/fhir/us/pacio-adi/ValueSet/LOINCPOLSTReviewAnswerList).