The ICD-10 places the diagnosis in the category of dissociative disorders, within the subcategory of other dissociative (conversion) disorders, but continues to list the condition as multiple personality disorder.
William Henry Harrison's Presidency. Explore the highs and lows of ninth U.S. President William Henry Harrison's administration, from his lengthy inaugural address to his death in office. Introduction. William Henry Harrison (1773-1841), Americaâs ninth president, served just one month in office before dying of pneumonia. His tenure, from March 4, 1841, to April 4, 1841, is the shortest of any U.S. president. Harrison, who was born into a prominent Virginia family, joined the Army as a young man and fought American Indians on the U.S. frontier.
 William Henry Harrison (1841), the ninth President, died of pneumonia one month to the day after makingin the snowthe longest U.S. presidential inauguration speech on record.  Zachary Taylor (1849-50), the 12th President, died in 1850 of an inflamed stomach and intestines just 16 months after he took office.William Henry Harrison (1841), the ninth President, died of pneumonia one month to the day after makingin the snowthe longest U.S. presidential inauguration speech on record.  Zachary Taylor (1849-50), the 12th President, died in 1850 of an inflamed stomach and intestines just 16 months after he took office.