# Celiac Antibodies tTG IgA, DGP IgA, Total IgA With Reflex to tTG IgG and DGP IgG

> This test measures specific antibodies that the immune system creates in response to gluten, a protein found in wheat, barley, and rye. It helps show whether the body is reacting to gluten in a way that damages the small intestine, which is the main concern in Celiac disease. Doctors use these results to help determine if digestive symptoms are caused by Celiac disease rather than other stomach conditions. While highly accurate, a positive result usually requires a tissue biopsy to confirm the diagnosis.

- Labcorp code: 164002
- Category: [Autoimmunity](https://app.picardo.health/labs/tests/autoimmunity.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=164002&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.