This is the ValueSet that contains all the codes in PCO Goal Domain Categories (http://hl7.org/fhir/us/pco/ValueSet/pco-goal-domain-categories) and PCO Goal Domain Categories (http://hl7.org/fhir/us/pco/ValueSet/pco-goal-domain-categories). E.g. what you have to deal with if you get resources containing codes in either of them