Final answer:
The DSM-5 diagnosis for an uncontrollable and irrational fear of an object, activity, or situation is Specific Phobia. It involves intense fear and avoidance behavior that significantly disrupt daily activities or cause distress. Symptoms peak within minutes of encountering the feared stimulus.
Step-by-step explanation:
The DSM-5 diagnosis for an uncontrollable and irrational fear of an object, activity, or situation is Specific Phobia. Specific Phobia is categorized under anxiety disorders in The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). This disorder is characterized by marked and persistent fear that is excessive or unreasonable, cued by the presence or anticipation of a specific object or situation.
Exposure to the phobic stimulus almost invariably provokes an immediate fear response, which may take the form of a situationally bound or situationally predisposed Panic Attack. Individuals with Specific Phobia recognize that their fear is excessive or unreasonable but often feel powerless to control it. The fear or anxiety associated with the phobic stimulus can significantly disrupt the person's daily routines, occupational functioning, social activities, or relationships.
The key symptoms are feelings of intense fear, climbing to a peak within minutes, and avoidance of the feared object, activity, or situation to a degree that limits their normal activities or causes significant distress.