Which symptom of dissociative fugue can be used to distinguish fugue from the other dissociative disorders?

The distinguishing symptom of dissociative fugue is the sudden, unexpected travel away from home or customary work locations, accompanied by an inability to recall one’s past, including personal history. Unlike other dissociative disorders, such as dissociative identity disorder or depersonalization/derealization disorder, dissociative fugue specifically involves this type of travel and the formation of a new identity during the episode. This unique combination of amnesia and wandering sets it apart from other dissociative conditions.