This is the ValueSet that contains all the codes in Care Gap Reasons Value Set (http://hl7.org/fhir/us/davinci-deqm/ValueSet/care-gap-reason) and Care Gap Reasons Value Set (http://hl7.org/fhir/us/davinci-deqm/ValueSet/care-gap-reason). E.g. what you have to deal with if you get resources containing codes in either of them