This video shows how to add a classification code to objects with Organizertool that is used for categorizing and managing model information, object properties and object property queries, and model object classification

Organizer consists of two tools, object browser and categories.

Categories, and how to export the code with the objects to an IFCfile format commonly used in BIM that facilitates software interoperability

IFC is an open specification developed by the IAI (International Alliance for Interoperability).

Model can be exported into an IFC file.

file.
Written description of the process is here.