This patient with homophobia has some functional impairment (2-week leave of absence) within 2 months following a stressor, with anxiety surrounding a single 'issue'. I approach adjustment disorder by ruling out other answer choices:

PTSD/Acute stress are only diagnosed following life-threatening events.

GAD requires >6mo of symptoms and worry about multiple issues.

Panic disorder requires patient to actively avoid scenarios that may trigger panic attack.

• Patient with psychosocial distress causing impairment following a discrete stressor who does not meet criteria for more serious psychiatric diagnoses
• Key idea: Adjustment disorder develops within 3 months of identifiable stressor and should last no longer than 6 months
• Key idea: Treated with psychotherapy (CBT) +/- adjunctive pharmacotherapy for anxiety, insomnia, etc.