Hospital-Leased Laboratories

50.3.1 - Hospital-Leased Laboratories (Rev. 1, 10-01-03) B3-4110.1 A/B MACs (B) process claims from hospital laboratories that are leased by physicians and independent laboratories. Before processing claims for services furnished by a hospital laboratory department operated on a lease or concession basis by a pathologist or by a nonphysician specialist such as a biochemist (with a visiting pathologist or outside independent laboratory doing the hospital’s tissue work), A/B MACs (B) must ascertain if the laboratory has been approved by the RO. Services furnished by a laboratory that does not meet the hospital laboratory conditions of participation and is operated under a lease arrangement in a domestic emergency hospital are covered only if they are emergency inpatient services payable under Part A. Additional information concerning nonparticipating emergency hospital services is found in Chapter 3.