Please ensure Javascript is enabled for purposes of website accessibility
CA 19-9. Carbohydrate Antigen


CA 19-9 – A large percentage of patients with gastrointestinal tumors (such as pancreatic, liver, gastric, colorectal tumors) and some other malignancies have been shown to have elevated serum CA 19-9 levels. Serum CA 19-9 levels may be useful for monitoring disease activity or predicting relapse following treatment. CA 19-9 should not be used as a screening test.

Synonyms: Cancer Antigen 19-9 Carbohydrate Antigen (CA) 19-9

Specimen Required

SST. Volume 1 (0.5) mL serum. Stability: Ambient – 7 Day, Refrigerated – 14 Days, Frozen – 2 Months

CPT Code(s)