About 150 of those soldiers eventually had their diagnoses restored.
"I am pleased that the Army completed this review and has vowed to make fixes over the next year, though I am disappointed it has taken more than a decade of war to get to this point," Murray said in a statement. "Many of the 24 findings and 47 recommendations in this report are not new. Creating a universal electronic health record, providing better rural health access, and standardizing the way diagnoses are made, for instance, have been lingering problems for far too long. Our service members and their families deserve better."
The report noted that the Army had made strides in some areas, including cutting how long it takes soldiers to obtain a disability evaluation and publishing a guide to the process.
The task force interviewed 750 people stationed around the globe, conducted listening sessions with 6,400 others and reviewed more than 140,000 records. The Army's Medical Command reviewed diagnoses for all soldiers evaluated for behavioral health problems from October 2001 until last April.
Since September 2001, the report found, 4.1 percent of all soldiers deployed wound up with a behavioral health diagnosis such as PTSD or traumatic brain injury. Many can remain on active duty.
Nationwide, the report said, 6,400 soldiers had behavioral health diagnoses "adjusted" by medical evaluation boards, with approximately equal numbers having PTSD added as a diagnosis and removed as a diagnosis. Two locations where medical evaluation boards are held had slightly higher diagnosis changes than the Army-wide average, but the report did not identify them. Cases from those locations are being reviewed to ensure no soldiers were improperly affected, the report said.
Last year the Army — and the military as a whole — suffered the highest number of suicides ever recorded, prompting then-Defense Secretary Leon Panetta to declare it an epidemic. The Army had 183 suicides among active-duty soldiers, up from 167 in 2011, and the military as a whole had 350 suicides, up from 301 the year before.
Among the problems the report documented was that Army bases don't have a person on site dedicated to overseeing behavioral health issues, despite the many problems they can cause: suicide, alcohol abuse, drug abuse, and child and spouse abuse. Each installation needs someone with a view of all those programs to make recommendations to the commander, the report said.
Army Secretary John M. McHugh said in a statement that the Army will work to place behavioral health experts "at the command and installation levels to provide better consultation, guidance, coordination and recommendations to improve behavioral healthcare for our soldiers."
The task force found that of the soldiers surveyed, 37 percent had never received any information about the Army's disability evaluation system or had to seek the information out on their own. It also said it was confusing and inefficient for troops to navigate the vastly different disability systems maintained by the Army and the Veterans Administration.
The Army and VA plan to have a joint disability system, by which healthcare providers in either organization will have access to records, by 2017.
"Some changes can be made immediately," McHugh said. "Others will require more time and coordination. Importantly, this report reviewed our systems holistically — recommending not only short-term solutions, but longer term, systemic changes that will make care and treatment of our soldiers and family members more effective."