Hi,
The benefit wage types can be identified by using T512W table. It follows the convention. These wgae types differs from plan to plan. You can identify based on the requirement like Health, Insurance or savings etc..
You may copy these wage types and configure these wage types as per your business requirement.
Also integration with payroll happens by using the node under payroll. " Benefits Integration' and based on your benefit area check the plan and assign the required EE, ER & Provider wage types as copied from the model wage types.
Regards
Madhav.