wines

I'm not sure if this is where this should be for starters. My 90 year old father submitted a claim back in 2012 for aid and attendance. He is service connected USN 100% disabled vet and has been since Feb. 1980. The VA doctor that filled out the paperwork included all his medical problems EXCEPT for the 2 that showed his service connected award in 1980. At that time my father did not understand what was really going on and let the appeal date go by. I have since submitted a new claim using a DAV rep. who was so very helpful. My father has Home Based Primary Care and no longer leaves the house. My questions are as follows: Why would the VA Dr. list everything but was necessary to get the approval? The DAV rep. said the Drs. at the VA know exactly what to include in order to get the approval and it looked to him that it couldn't have been anything but intentional. After the DAV rep. looked at my dads paperwork within 10 min. he saw the problem and opened another claim which he says there shouldn't be any reason he will get denied. Can we go back and appeal/dispute wrong doing by the VA Dr. so as to get retro from the date of the first claim? I quit my job and have been full time caregiver for my Dad for 3 1/2 years. Any input would be greatly appreciated.