The process of moving, without taking out, all or a portion of a body part to another location is known as what?

The term that best describes the process of moving, without excising, all or a portion of a body part to another location is "Transfer." In medical coding and terminology, this word specifically refers to the action of relocating a body part while maintaining its continuity with the surrounding structures. This is different from other options, which have distinct meanings in medical contexts.

"Resection," for instance, involves the surgical removal of a part or all of a body part, which does not apply to transferring or relocating it. "Displacement" refers more to a movement from the original location, often implying that the item or body part is no longer in its normal anatomic position, rather than the deliberate act of relocating it with intention to preserve its function. "Relocation" is a general term that does not have the specified medical connotation needed here and is less precise in a surgical context compared to "Transfer." Thus, "Transfer" stands out as the correct term that encompasses the process described in the question.