Making notification to an injured employee by an employer or insurance carrier of any change to workers compensation benefits discretionary, providing that employees seeking workers compensation benefits waive the patient privilege preventing access to medical information, prohibiting infringement of the employer's right to direct medical treatment, requiring that questions by the director of workers compensation to a healthcare provider for an examination ordered by the director be in writing, providing that partial work weeks be counted as full weeks for purposes of computing average wages and excluding expert witness costs from court costs that may be awarded a claimant.