The ornamental design for a portion of a displayscreen with icon, as shown and described.
FIG. 1 is a front view of a portion of a display screen with icon; and,
FIG. 2 is a front view of the portion of a display screen with icon of FIG. 1, showing the design in an environment of use on an unclaimed mobile terminal
The mobile terminal including symbols and features drawn in broken lines forms no part of the claimed design.
The dot dash broken line surrounding the design in FIGS. 1 and 2 represents the boundaries of the claim and forms no part thereof.