Display screen portion with icon for an atrial orientation marker

I claim the ornamental design for a display screen portion with icon for an atrial orientation marker, as shown and described.

The FIGURE is a front view of a display screen portion with icon for an atrial orientation marker showing my new design.

The broken-line perimeter in the FIGURE illustrates a display screen portion and forms no part of the claimed design.

Patent	Priority	Assignee	Title
ER7819,

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 27 2018		Navix International Limited	(assignment on the face of the patent)

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