with good or fair insight, poor insight, and “absent insight/delusional” obsessive-compul-
sive disorder beliefs (i.e., comp lete conviction that obsessive-compulsive disorder beliefs
are true). Analogous “insight” specifiers have  been included for body dysmorphic disorder
and hoarding disorder. A “tic-related” specifier for obsessive-compuls ive disorder has also
been added, because presence of a comorbid tic disorder may have important clinical im-
plications. A “muscle dy smorphia” specifier for body dysmorphic disorder  is added to re-
flect a growing literature on the diagnostic validity and clinical utility of making this