# 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.

- Labcorp code: 164002
- Category: [Autoimmunity](https://picardo.health/labs/tests/autoimmunity.md)
- Sample: blood
- Labcorp turnaround: 2–4 days
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=164002&ref=assistant

## Results reported (3)

- Immunoglobulin A, Qn, Serum
- Deamidated Gliadin Abs, IgA
- t-Transglutaminase (tTG) IgA

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their 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.