Psychiatry identifies three different categories of phobias
(with panic attacks): 300.21
(without panic attacks): 300.01
Irrational anxiety about being in places from which escape might be difficult or embarrassing.
Irrational anxiety elicited by exposure to certain types of social or performance situations, also leading to avoidance behavior.
Persistent and irrational fear in the presence of some specific stimulus which commonly elicits avoidance of that stimulus, i.e., withdrawal.