This is the ValueSet that contains all the codes in JDV_J115_Langue_ENREG (https://mos.esante.gouv.fr/NOS/JDV_J115-Langue-ENREG/FHIR/JDV-J115-Langue-ENREG) and JDV_J115_Langue_ENREG (https://mos.esante.gouv.fr/NOS/JDV_J115-Langue-ENREG/FHIR/JDV-J115-Langue-ENREG). E.g. what you have to deal with if you get resources containing codes in either of them