Right now there is no possibility to bring the Item Status and Item Maturity Status attribute to a drawing's titleblock.
Can you extend the list of the attributes for which there are codes on the drawing (https://help.autodesk.com/view/UPCHN/ENU/?guid=UC_MechanicalCAD_mc_cad_plugin_mc_map_attr_html) with the attributes Item Status and Item Maturity Status?