European Union agency food product type efsa food classification and description system for exposure assessment (efsa foodex2) FoodEx2 is a comprehensive food classification and description system aimed at covering the need to describe food in data collections across different food safety domains. After its first release in 2011, the system was broadly tested in various practical situations, allowing its evaluation and the identification of areas for improvement. The present version in LanguaL is based on the FoodEx2 version Matrix 9.0 dated 2018-01-26 (downloaded 2018-02-07) and comprises the FoodEx2 Exposure Hierarchy. The FoodEx2 browser and FoodEx2 catalogue are available at GitHub: https://github.com/openefsa/catalogue-browser/wiki For further information, see the Data Standardisation pages of the European Food Safety Authority website [https://www.efsa.europa.eu/en/data/data-standardisation]. The implementation of EFSA FoodEx2 facet term codes (FTC) in LanguaL follow closely the EFSA FoodEx2 codes; this means that the LanguaL facet term codes for all FoodEx2 descriptors are identical to the original EFSA FoodEx2 codes. EFSA FoodEx2 is top-down prioritised, meaning that descriptors physically higher in the hierarchy within the same level are preferred to descriptors further down, whereas LanguaL in general does not have a preferred order. In the implementation of EFSA FoodEx2 it has therefore been necessary to implement a forced order of the descriptors by preceeding the original FoodEx2 descriptor names by a numeric serialisation indicator (an order number). LanguaL curation note: This term is for CLASSIFICATION ONLY; DO NOT USE term in indexing. Use a more precise narrower term. requires discussion