Most veterans are in the dark about how the VA actually determines a rating for PTSD. If a veteran is granted a service-connected disability for PTSD the VA will assign a rating based on the current severity of the symptoms (not on the severity of the stressful event). The VA actually has published regulations on how it is supposed to rate PTSD claims. The problem is that it’s just one set of regulations buried within thousands of VA regulations. Below are the specific regulations on how the VA is supposed to rate PTSD claims based upon the level of social and occupational impairment as determined by various symptoms. These ratings range from 0, 10, 30, 50, 70, and 100%.