REYKJAVIK, Iceland, April 15 /PRNewswire/ -- deCODE genetics (Nasdaq: DCGN - News) today announced the launch of deCODE T2(TM), a novel DNA-based reference laboratory test for the first common and well-validated genetic risk factor for type 2 diabetes (T2D). deCODE believes this test may provide an important means to better gauge individual risk of T2D and in that help to guide prevention and treatment strategies.