The purpose of this non-interventional study is the collection and documentation of data on safety and efficacy of intravenous (IV) bevacizumab (Avastin) in addition to platinum-based chemotherapy for first-line treatment in participants with unresectable advanced, metastatic or recurrent non-small cell lung cancer (NSCLC) other than predominantly squamous cell histology with focus on adenocarcinoma and elderly patients in daily routine.