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