obsolete consent code primary category A categorical data item indicating the primary category the consent code belongs to according to Dyke et al. 2016. DUO:0000002 This term was depreacted as it is not used to tag datasets but instead as patterns for DUO codes capture. This is an archive specific requirement, e.g. "one code from a primary category and one or more from a second category' This is better done by Schemablocks and constraining the pattern of usage of DUO terms at each archive level. true Obsolete Class