step 1 rule out malingering and factitious disorder to work through the differential diagnosis and find the correct step 2 rule out substance etiology every diagnosis in the dsm 5 states that the illness must not be attributable to step 3 rule out a disorder due to a general medical . Note 5 retrouvez differential diagnosis in clinical psychiatry et des millions de livres en stock sur amazonfr achetez neuf ou doccasion. Note 5 retrouvez differential diagnosis in clinical psychiatry the lectures of paul h hoch m d et des millions de livres en stock sur amazonfr achetez neuf ou doccasion. About diagnosis of a psychiatric disorder the symptoms study diagnostic method never must be used then diagnosis needs to be made appropriately and carefully and differential diagnosis must also perform it exactly it is because medical treatment may differ depending on diagnosis if this is not made appropriately it may lead to medication of an unnecessary and aimless antipsychotic in