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.

Social phobia: 300.23 Irrational anxiety elicited by exposure to certain types of social or performance situations, also leading to avoidance behavior.

Specific phobia: 300.29 Persistent and irrational fear in the presence of some specific stimulus which commonly elicits avoidance of that stimulus, i.e., withdrawal.