This is the ValueSet that contains all the codes in Payer Type (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3591) and Birth and Fetal Death Financial Class (http://hl7.org/fhir/us/bfdr/ValueSet/ValueSet-birth-and-fetal-death-financial-class). E.g. what you have to deal with if you get resources containing codes in either of them