Through its CLIA- and CAP-certified laboratory deCODE offers DNA-based tests for gauging risk and empowering prevention of common diseases , including deCODE T2 ( TM ) for type 2 diabetes ; deCODE AF ( TM ) for atrial fibrillation and stroke ; deCODE MI ( TM ) for heart attack ; deCODE ProstateCancer ( TM ) for prostate cancer ; deCODE Glaucoma ( TM ) for a major type of glaucoma ; and deCODE BreastCancer , for the common forms of breast cancer .