38 U.S.C. 1151 allows veterans to file claims for injuries caused or aggravated as a result of VA sponsored medical treatment or Vocational Rehabilitation.
Post-traumatic stress disorder (PTSD) is a type of anxiety disorder that generally occurs following some sort of traumatic event.
Some medical conditions are presumed to be caused by a veteran's military service. If the veteran meets the criteria for the presumption, then he or she does not have to show how the condition is connected to military service.