The OASIS Code List Representation format, “genericode”, is a single semantic model of code lists and accompanying XML serialization (supported by a W3C XML Schema https://docs.oasis-open.org/codelist/genericode/v1.0/os/xsd/genericode.xsd) that can encode a broad range of code list information. The serialization is designed to IT-enable the interchange or distribution of machine-readable code list information between systems. Note that genericode is not designed as a run-time format for accessing code list information, and is not optimized for such usage. Rather, it is designed as an interchange format that can be transformed into formats suitable for run-time usage, or loaded into systems that perform run-time processing using code list information.