Mo. Rev. Stat. § 331.045

No chiropractor licensed under the provisions of this chapter while acting as a member of an insurance peer review committee functioning for the sole purpose of arbitrating insurance claims shall be liable in damages to any person subject to the actions of the committee for any decision or recommendation made by the committee or by a person acting in his official capacity as a member of any such committee if the decision or recommendation was made within the scope and function of the committee and if the decision or recommendation was made without malice and was supported by creditable evidence upon consideration of the record made available.