This is the ValueSet that contains all the codes in JDV Jour Semaine CISIS (https://smt.esante.gouv.fr/fhir/ValueSet/jdv-jour-semaine-cisis) and JDV Jour Semaine CISIS (https://smt.esante.gouv.fr/fhir/ValueSet/jdv-jour-semaine-cisis). E.g. what you have to deal with if you get resources containing codes in either of them