No - convert the PDF to a raster image (JPG, TIFF or PNG) then in Drafting use Menu -> Insert -> Image to place the image onto the face of your drawing sheet.
NX 22.214.171.124 MP11 Rev. A
GM TcE v126.96.36.199
GM GPDL v11-A.3.7
Even in latest NX version it is not supported. There are many ERs which ask that functionality. Some are listed below. Please contact GTAC to link your name so that you'll get notification when it's available.
ER# 6257682: PDF file to get inserted in drafting as DRATING VIEW
ER# 1916045: Insert a PDF in a NX drawing