Classification of psychiatric disorders is as following-

1. Anxiety disorders:

i) Generalised anxiety disorder
ii) Panic disorder
iii) Phobic anxiety
iv) Obsessive-compulsive disorder

2. Stress-related disorders

i) Acute stress disorder
ii) Adjustment disorder
iii) Post-traumatic stress disorder

3. Schizophrenia and delusional disorders

4. Affective or mood disorders

i) Depressive disorder
ii) Mania
iii) Bipolar disorder

5. Organic disorder

i) Acute, e.g. delirium
ii) Chronic, e.g. dementia

6. Substance misuse

i) Alcohol
ii) Drugs

7. Disorders of adult personality and behaviour

i) Personality disorder
ii) Factitious disorder

8. Behavioral syndromes associated with physiological disorders

i) Eating disorders

• Anorexia nervosa
• Bulimia nervosa

ii) Sleep disorder
iii) Sexual dysfunction
iv) Puerperal mental disorders

9. Somatoform disorders

i) Dissociative (conversion) disorder
ii) Hypochondriasis
iii) Somatisation disorder
iv) Pain disorder
v) Somatoform autonomic dysfunction
vi) Body dysmorphic disorder

10. Neurasthenia.