The intent of workers' compensation law is to ensure costs resulting from industrial accidents and conditions are borne largely by industry. By ensuring workers receive definite and speedy payments for medical expenses and lost wages incurred for on-the-job injuries and illnesses, they forfeit the right to pursue further litigation.
This is true across the country, and it's referred to as "exclusive remedy." It means workers' compensation is the exclusive remedy through which workers can be compensated for occupational ailments or injuries. Companies are otherwise immune from civil litigation on these matters.
But, as with all areas of law, there are exceptions. There is the third-party litigation that can be brought against parties who are not considered employers. Beyond that, there is the realm of "intentional tort" by employers.
This has been very narrowly interpreted by most courts. In some states, it's all but impossible to bring such a claim. The definition generally holds anything less than outright, specific intention on the employer's part is insufficient to permit exception to the exclusivity rule. This typically is not going to extend to situations in which employer acts with indifference or even creates an exceptionally or unlawfully hazardous work environment. It instead means the actual intent to cause harm to the worker.