In Treatment Planner window, the case details displays visits if any are set, the corresponding procedures for those visits, the case status and severity, and the case total and/or case estimated totals if those are being viewed. You can also customize what procedure information is displayed.
For any given visit you can show or hide the procedures assigned to that visit: click the right arrow icon 
next to the visit number to show the procedures, or click the down arrow icon 
to hide the procedures.