You can double check on your state website for more specific WC info.
But generally an employer can not discriminate against anyone that has filed a WC claim.

I had repetitive use claims over 15 years w/same employer, for my wrists, shoulders and neck. I always had excellent reviews, and never felt any discrimination at all.
I had some accepted claims and some denied, with most I did recover in the time frame and w/ PT & some light duty. Until that last time, now a chronic condition.

But some less than reputable companies may try to squeeze someone out if they also have poor performance or poor attendance on reviews/record.