The Combined Nomenclature (CN), v1:2018
0511 91 90: Products of fish or crustaceans, molluscs or other aquatic invertebrates (excl. fish waste); dead fish, crustaceans, molluscs or other aquatic
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=97dd4f6e-1b47-43b5-8532-380d3d1b7c2f