This is the ValueSet that contains all the codes in x_ActMoodCompletionCriterion (http://terminology.hl7.org/ValueSet/v3-xActMoodCompletionCriterion) and x_ActMoodCompletionCriterion (http://terminology.hl7.org/ValueSet/v3-xActMoodCompletionCriterion). E.g. what you have to deal with if you get resources containing codes in either of them