130 CMR 455.419
Laboratory Services: Services Performed by Outside Laboratories
(A) A UCC may not bill the MassHealth agency for laboratory services provided outside the
UCC. In this case, the testing laboratory should bill the MassHealth agency directly for those
services.
(B) When sending a specimen to an outside laboratory, the UCC must include the member's
MassHealth identification number and the UCC's MassHealth provider number.