This is the ValueSet that contains all the codes in QICore Present On Admission Codes (http://hl7.org/fhir/us/qicore/ValueSet/qicore-present-on-admission) and QICore Present On Admission Codes (http://hl7.org/fhir/us/qicore/ValueSet/qicore-present-on-admission). E.g. what you have to deal with if you get resources containing codes in either of them