Primary site/Biliary tract--Ampulla of Vater: What is the correct primary site code for intra-ampullary and periampullary adenocarcinoma, C241 (8144/3) or C249? See Discussion.
Primary Site--Vulva: What is the primary site of patient with an excision of a left vulvar cystic mass showing focal mammary-type ductal carcinoma in situ (DCIS) on 11/06/2020? See Discussion.
Primary Site--Testis: What is the prmary site for a 38 y/o male diagnosed with testicular cancer in a formerly undescended testis that was treated with orchiopexy at age 10-11? See discussion.
Primary Site--Stomach: How do I code the primary site when the operative report and pathology report state that the tumor site is incisura of the stomach?