This is the ValueSet that contains all the codes in Goal Barrier Types Example (http://hl7.org/fhir/us/pco/ValueSet/pco-goal-barrier-types-example-vs) and Goal Barrier Types Example (http://hl7.org/fhir/us/pco/ValueSet/pco-goal-barrier-types-example-vs). E.g. what you have to deal with if you get resources containing codes in either of them