Modifies provisions relating to workers' compensation

HB 2375 revises Missouri's workers' compensation law by tightening eligibility requirements. It defines "accident" as requiring work to be the "prevailing factor" causing injury - meaning the injury must directly stem from workplace conditions, not just be triggered by work. The bill explicitly excludes ordinary diseases of life, cardiovascular issues (unless work was the primary cause), and most occupational diseases, listing only specific conditions like mesothelioma or asbestosis as compensable. This primarily affects workers seeking compensation for injuries or illnesses, making it harder to qualify by requiring a direct, primary workplace link to the injury. The law also rejects prior court interpretations that expanded coverage.