The number of disability cases that are related to PTSD has nearly tripled in the last decade from around 345,000 cases in 2008 to more than 940,000 today.
22 percent of all veterans receiving compensation benefits from the department are service-connected PTSD benefits.
Ronald Burke, the assistant deputy undersecretary at the Veterans Benefits Administration said that one of the reasons for the spike in PTSD claims has been the decision to relax eligibility and evidentiary rules for PTSD diagnoses since 2010.
Additionally, more public attention on the topic and more awareness among veterans has prompted veterans to file claims. Both the VA and the Defense Department have been working to erase the stigma attached to seeking help for mental illness.