Question

Discuss the classification of mental disorders. Explain the importance of diagnostic systems in
clinical practice.

20 Jul 2026
Answer :
Word Count : 772
Mental disorders are classified to provide a systematic framework for understanding, diagnosing, treating, and researching psychological conditions. Classification helps mental health professionals identify disorders based on recognized patterns of symptoms, duration, severity, and functional impairment. The two most widely used diagnostic systems are the Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association, and the International Classification of Diseases (ICD), published by the World Health Organization. These systems organize mental disorders into categories based on clinical features and scientific evidence. One major category is neurodevelopmental disorders, which usually begin during childhood and affect cognitive, social, and adaptive functioning. These include intellectual disability, autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD), communication disorders, and specific learning disorders. Such disorders interfere with normal developmental milestones and require early assessment and intervention. Schizophrenia spectrum and other psychotic disorders are characterized by disturbances in thinking, perception, emotions, and behavior. Common symptoms include hallucinations, delusions, disorganized speech, disorganized behavior, and negative symptoms such as reduced emotional expression and social withdrawal. Schizophrenia, schizophreniform disorder, and schizoaffective disorder are included in this category. Bipolar and related disorders involve significant disturbances in mood, energy, and activity levels. Individuals experience episodes of mania, hypomania, and depression. Bipolar I disorder, Bipolar II disorder, and cyclothymic disorder differ in the intensity and duration of mood episodes. Depressive disorders are characterized by persistent sadness, loss of interest or pleasure, changes in appetite and sleep, fatigue, feelings of worthlessness, and impaired concentration. Major depressive disorder, persistent depressive disorder (dysthymia), and premenstrual dysphoric disorder are common examples. Anxiety disorders involve excessive fear, anxiety, and related behavioral disturbances. These include generalized anxiety disorder, panic disorder, specific phobia, social anxiety disorder, and separation anxiety disorder. The symptoms often interfere
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