This is the ValueSet that contains all the codes in Personal Functioning and Engagement Functions Of Digestive, Metabolic, and Endocrine Systems Value Set (http://hl7.org/fhir/us/pacio-pfe/ValueSet/pfe-functions-of-digestive-vs) and Personal Functioning and Engagement Functions Of Digestive, Metabolic, and Endocrine Systems Value Set (http://hl7.org/fhir/us/pacio-pfe/ValueSet/pfe-functions-of-digestive-vs). E.g. what you have to deal with if you get resources containing codes in either of them