A patient support apparatus includes a frame having a head end and a foot end. A support arm is operably coupled to the head end of the frame. A cord is coupled to the support arm. A user interface housing is operably coupled to the cord and configured to retain a user interface. The user interface housing includes a locking body coupled to a body of the user interface housing and has a flange configured to engage an edge of the user interface. A latch mechanism includes a flexible body coupled to a rear side of the locking body. The latch mechanism is configured to selectively secure the locking body in a position. A shelf is coupled to a lower portion of the body of the user interface housing. The shelf has stoppers operably coupled to the shelf. The stoppers are adjustable along a horizontal plane to define different widths.