According to an analysis by Memorial Sloan Kettering Cancer Center patients who receive a target therapy having an oncogenic driver mutation live longer than those who do not receive it. In addition to that, therapies guided by analysis on mutations identified in ct-DNA had a favorable impact, allowing longer survival. All this suggests that the presence of a therapeutically targetable oncogene (oncogene addicted) allows target therapy, resulting in a longer life expectancy. The main objective of this study is to evaluate the frequency of patients with oncogene addiction in a consecutive series of patients with NSCLC afferent to the CRO. Oncogene addiction is defined as being carriers of one of the mutations among EGFR, ALK, RET, KRAS, BRAF, Her2, ROS1, MET or other mutations that become therapeutic targets under investigation.