Advantage and disadvantage of having classification system of mental disorders

Advantages and disadvantages of having classification system of mental disorders:

Advantages:

Once the disorder is classified, treating the patient becomes easier.The extent or the intensity of the disorder can be determined from what class the disorder belongs to.Different levels of expertise can be appointed to treat the patient depending on the class of the disorder.

Disadvantages:

Eventually, one or the other class of disorder would be started looking at as a more serious disorder.The approach towards different classes of disorders would be different.Standardised predetermined treatments designed based on the class of disorder would sometimes not work on some patients.