Section 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.Adopted by Mass Register Issue 1461, eff. 1/21/2022.