Unspecified Depressive Disorder

Unspecified depressive disorder involves persistent depressive symptoms causing distress or functional impairment but not meeting criteria for a specific depressive disorder. Etiology involves genetic predisposition, neurochemical alterations, and environmental stressors. Clinically, patients present with low mood, anhedonia, fatigue, and sleep or appetite changes. Diagnosis is clinical, excluding other depressive disorders and medical conditions. Management includes psychotherapy, pharmacotherapy, and supportive interventions.