V: Mental and behavioural disorders

F30-F39: Mood [affective] disorders

Mood or affective disorders, as this category suggests, primarily influence a person's mood or emotional state. This spectrum of conditions includes major depressive disorder, bipolar disorders, and persistent mood disorders. Though the exact causes of these disorders vary, genetic predisposition, hormonal imbalances, certain medical conditions, and psycho-social factors such as stress or trauma can contribute. Common symptoms across these conditions include persistent feelings of sadness or unanticipated mood swings, loss of interest or pleasure in activities, changes in weight or appetite, and disturbed sleep patterns. As each condition has its unique disease progression, symptoms may vary from mild to severe, impacting day-to-day life and the overall wellbeing of an individual. Particularly, these disorders can affect the central nervous system, which regulates emotions and behavior. Overall, mood disorders can have a profound impact on a person's life, but potential recovery is high with appropriate professional interventions.