Process Change for Histocompatibility Laboratories
•Discontinue use of the Centers for Medicare & Medicaid Services (CMS) Form 2007 Tie-In Notice: The CMS-2007 Tie-In Notice
is not required for histocompatibility laboratories.
•Discontinue assignment of HL-number for Histocompatibility Laboratories: HL numbers are obsolete for CMS purposes and are
not to be assigned for freestanding histocompatibility laboratories.