Can IC settle without a disability rating?

[Lilly]

Hi all....i need your input
How can IC/WC offer to settle, when I have had no tests to know exactly how my physical disabilities have affected my body on a percentage basis?

I would know if I have been tested ...right?

Early on in my injury, my IC appointed MD, said i needed surgery, of course IC denied. I was then sent to an IME who stated I needed surgeries on two different body parts and he was pissed about them sending me to PT prior to surgeries, as he said they probably caused more damage doing PT, he said my MRI was misread in the first place. The IC then approved surgeries.
Then, they had me change doctors due to continuing problems, to one I absolutely loved, and he did the last of the 4 surgeries, and put me on MMI w/ lifetime permanent restrictions, said get a lawyer, and file for SSD (which I did) SSD was approved. I'm still receiving weekly WC checks....IC started talking settlement, so my lawyer entered a settlement amount & they counter offered, but we denied. Things seem to be in limbo now.....what happens next? Can they settle without knowing the extent of my disability?
Thanks for your input everyone! Lilly