Section 405.434 - Laboratory Services: Services Performed by Outside Laboratories(A) A CHC may not bill the MassHealth agency for laboratory services provided outside the CHC. 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 CHC must include the member's MassHealth identification number and the CHC's MassHealth provider number.Amended by Mass Register Issue S1277, eff. 1/2/2015.Amended by Mass Register Issue 1387, eff. 3/22/2019.