The baseline cohort of the present study consisted of patients with the ICD-10-GM (http://www.dimdi.de/static/ de/klassi/icd-10-gm/index.htm) diagnosis "C17 adeno- carcinoma of the small bowel, duodenum, jejunum, and ileum". Patients with ...
We used the following SEER variables to identify primary SBA: “Primary Site-labeled” (C17.0-duodenum, C17.1-jejunum, C17.2-ileum, or C17.9-small bowel not otherwise specified) and “Histologic Type International Classification of Diseases for Oncology, Third edition (ICD-O-3)” (histology ...