First established in 1995 as the Gulf War Health Center at Walter Reed Army Medical Center, its mission was to care for Gulf War veterans with war-related physical and mental health challenges. In 1999 it became the Deployment Health Clinical Center – one of three DOD centers of excellence for deployment health. (The others being the Armed Forces Health Surveillance Center and the Naval Health Research Center.) The center was responsible for coordinating the evaluation of veterans seeking care for post-deployment health concerns.
In 2008, the National Defense Authorization Act provided a congressional mandate for the creation of centers of excellence for posttraumatic stress disorder and traumatic brain injury within the DOD. As a result, DHCC became a center under the Defense Centers of Excellence for Psychological Health and Traumatic Brain Injury. The NDAA charged the center with implementing plans and strategies for the prevention, diagnosis, mitigation, treatment, and rehabilitation of PTSD and other mental health conditions.
In 2016, DCoE and its centers, including DHCC, transitioned to DHA and in 2017 DHA completed the consolidation of DCoE and its centers and retired the DCoE brand. DHCC officially changed its name to the Psychological Health Center of Excellence to better align with its current mission.