I Was Injured On The Left Side Of My Neck

I was injured on the left side of my neck and started having immediate pain and swelling and pain radiating down to my left elbow. My MRI showed I had fluid buildup in my cervical special me. Between the bone and ?. The radiologist Reading the MRI did not know I had an injury trauma to the neck and his reporting it as age related. My insurance company is having issues on whether to cover it or not based on whether it was an injury or age related. Can you shed any light?