Can my Workers' Comp claim be denied for failing a post-accident drug test?

Under GA workers’ compensation law, an injury sustained by an employee arising out of and in the course of employment shall be considered a compensable injury, thereby making the worker eligible for wage benefits and medical care. However, an employer is permitted to deny an otherwise payable claim if the presence of “any amount of marijuana” or other controlled substance is revealed by a drug test administered within eight hours of the workplace accident. The law states that a “rebuttable presumption” arises that the accident was caused by the use of an illegal substance, and the burden falls on the claimant to prove otherwise.