Go to the VBA (Veterans Benefits Administration) at your VAMC Request a Copy of this exam. they will have it or look it up in the computer. You may use a VA Form 21-4138 (Statement in Support of Claim) to submit the Notice of Disagreement. The Notice of Disagreement must be filed within one (1) year after the date the local VA office sent the original decision that denied your claim. The shortest period in which a review may be completed is usually around 6 months, but generally it takes longer, with some claims not receiving an initial decision for well over a year from the filing date of the claim.