Section 457.1150 - Program specific review process: Impartial review(a)Eligibility or enrollment matter. The review of a matter described in § 457.1130(a) must be conducted by a person or entity who has not been directly involved in the matter under review.(b)Health services matter. The State must ensure that an enrollee has an opportunity for an independent external review of a matter described in § 457.1130(b) . External review must be conducted by the State or a contractor other than the contractor responsible for the matter subject to external review.