Is Mulitple Personality Disorder still a valid DX

The hallmark symptom is amnesia, which can be partial or complete depending on the level co-consciousness that exists between alters. Folks with the disorder describe the amnesia as "missing time" or blank periods, often daily or weekly, where they cannot account for their whereabouts or behavior. It is this amnesic barrier between parts that often leads to the most bizarre and distinctive signs and symptoms: not recognizing familiar people; not remembering highly significant events in their lives (like the birth of their first child, for example); finding purchases or articles of clothing/possessions, writings or drawings that they have no recollection of having bought or created. They are frequently accused of lying because they disawow their own behavior which is remembered by one part, while the amnestic part is completely unaware of it. Other unusual symptoms include: an exceptionally high tolerance for physical pain (they split off physical sensation which becomes encapsulated in one or several alters without others feeling it); not recognizing themselves in a mirror; using different names; having dramatically different skills and abilities that seem to be alternately present and then vanish (one alter may be able to drive a car while the sudden emergence of a child alter results in complete loss of this ability until the adult alter re-emerges); completely different opinions and behaviors (leading to the mislabelling of Bipolar or Borderline Personality.