CA 19-9 (Pancreatic/GI Cancer)
CA 19-9 is a tumor-associated antigen often elevated in pancreatic, biliary, and other gastrointestinal cancers. It is primarily used to monitor treatment response and recurrence rather than for screening, because it is also elevated in pancreatitis, cholangitis, and cholestasis and is not produced at all in people with certain blood group antigens.
1 providers include this
Cancer Screening Markers
<37 U/mL
What is CA 19-9 (Pancreatic/GI Cancer)?
CA 19-9 is a tumor-associated antigen often elevated in pancreatic, biliary, and other gastrointestinal cancers. It is primarily used to monitor treatment response and recurrence rather than for screening, because it is also elevated in pancreatitis, cholangitis, and cholestasis and is not produced at all in people with certain blood group antigens.
Why It Matters
Elevated in pancreatic cancer and other GI malignancies. Also increased in pancreatitis and biliary obstruction. Used for monitoring treatment.
Which Providers Test CA 19-9 (Pancreatic/GI Cancer)?
Full Provider Comparison
| Provider | Includes | Annual Cost | Biomarkers |
|---|---|---|---|
 Superpower | — | $199 | 100+ (150 with ratios) |
 WHOOP Advanced Labs | — | $349 | 65 |
 Labcorp OnDemand | — | $398 | 40+ |
| — | $486 | 40+ | |
| — | $449 | 288 | |
| — | $349 | 100+ | |
| — | $829 | 54 | |
 Function Health | ✓ | $365 | 160+ |
| — | $250 | 65 | |
| — | $495 | 80+ | |
| — | $895 | 100+ | |
| — | $1950 | 130+ | |
| — | $375 | 95+ | |
| — | $Varies | 75+ | |
| — | $190 | 100+ | |
| — | $99 | 50 | |
| — | $124 | 60 | |
| — | $349 | 130+ | |
| — | $349 | 80+ | |
| — | $375 | 85 | |
| — | $700 | 128 | |
| — | $99 | 100+ |
Frequently Asked Questions
What is CA 19-9 (Pancreatic/GI Cancer)?
CA 19-9 is a tumor-associated antigen often elevated in pancreatic, biliary, and other gastrointestinal cancers. It is primarily used to monitor treatment response and recurrence rather than for screening, because it is also elevated in pancreatitis, cholangitis, and cholestasis and is not produced at all in people with certain blood group antigens.
What is the optimal range for CA 19-9 (Pancreatic/GI Cancer)?
The standard reference range for CA 19-9 (Pancreatic/GI Cancer) is <37 U/mL. Optimal ranges may differ based on individual health goals and expert recommendations.
Which blood test providers include CA 19-9 (Pancreatic/GI Cancer)?
1 out of 22 blood testing providers include CA 19-9 (Pancreatic/GI Cancer) in their panels. This biomarker has limited availability.
What category does CA 19-9 (Pancreatic/GI Cancer) fall under?
CA 19-9 (Pancreatic/GI Cancer) is categorized under Cancer Screening Markers. This category includes biomarkers that help assess related aspects of health and wellness.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed:2026-04-12