The Federal Tort Claims Act prescribes a uniform procedure for handling of claims against the United States, for money damages only, on account of damage to or loss of property, or personal injury or death, caused by the negligent or wrongful act or omission of a Government employee while acting within the scope of his or her office or employment, under circumstances where the United States, if a private person, would be liable in accordance with the law of the place where the act or omission occurred.
You cannot file a regular medical malpractice claim if a VA healthcare provider is involved. Instead, you have two options:
Filing a claim under the Federal Tort Claims Act;
Filing an "1151 Claim" with the VA claim under the Federal Tort Claims Act claim must be filed within 2 years of the time that you discovered the injury and what caused it.
The "1151 Claim" is an administrative claim that can be filed at any time with the VA.