To answer your questions:
1) yes
2) I don't know what you mean
Medical appeals are possible in the NYPD. You are going to have to shell out money for such though. By money, I mean you are going to have to go to TWO, independent doctors, on your own for a full exam and evaluation of the condition. I would make sure both are orthos who specialize in back issues. They will need to do x-rays and whatever else. Explain to them up front what you need! They will then need to write a report of evaluation for you in a letter format.
The letter should:
1) be address to the the NYPD medical unit
2) Contain the fact they completed an exam and what such entailed
3) describe any tests run
4) detail their findings, including if "Lumber spine spondylosis" was found
5) and the statement similar to: "based upon my exam and evaluation, I find John Doe is (or is not) capable to hanlde the physical duties of a police officer."
6) Have them GIVE YOU (aka- not mail) the report/letter. You then mail a written request for appeal with the letters to the medical unit.
Medical appeals happen all the time. Some get flipped, others do not...all depends what they other docs actually find.
-In God we trust. All others, put your hands on the car and don't move.