When assessing a patient for a comorbid disorder, it's important to identify any co-existing mental health conditions. This can be difficult to do because there is no single test for a particular condition, but the symptoms of comorbid disorders should be carefully examined wherever they occur. In addition to considering the possible presence of comorbidity, the therapist should look at the overall course of the patient's life and how it affects their current health.
As with all disorders, comorbidity is a complex process that can be difficult to diagnose, especially in patients with many different types of psychiatric disorders. The overlapping symptoms and complicated patterns of symptom development can make the diagnosis difficult. In these cases, a structured diagnostic interview may be necessary. The interview focuses on the severity of symptoms and how long the symptoms have been present. If all of the diagnostic criteria are met, a diagnosis is considered positive.
While there is no definitive evidence that one disorder causes the other, there is evidence that certain disorders often overlap. This is known as a comorbidity relationship. However, a patient with a single mental health problem may also have another disorder that affects their overall health. When this happens, the patient may need to undergo several different treatment regimens, which can increase the length of the treatment. Although treatment for a comorbid condition can be more difficult, it is still possible.