On your lab requisition: Quest “Tissue Transglutaminase (tTG) Antibody (IgA)” (test code 8821)BioReference “Transglutaminase, IgA Abs.” (test code 3472-8)
The short answer
Celiac Disease Panel measures tTG-IgA, tTG-IgG and DGP-IgA plus 2 more from a standard blood draw. At TestWell it costs $124.99 plus a $6 lab processing fee, needs no fasting, and results post in 3–7 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest.
TestWell Price
$124.99
+ $6 lab processing fee
This comprehensive celiac panel tests for the antibodies associated with celiac disease, an autoimmune condition triggered by gluten. It includes tTG-IgA, tTG-IgG, DGP-IgA, DGP-IgG, and total IgA. Testing multiple antibodies improves detection accuracy, especially in people with IgA deficiency. You must be eating gluten regularly for at least 2–3 weeks before testing for accurate results.
Comprehensive celiac antibody screen: Tissue Transglutaminase IgA (tTG-IgA, the most sensitive marker), Total IgA (to detect false-negative IgA deficiency), and Deamidated Gliadin Peptide IgG/IgA.
Anyone with chronic GI symptoms (bloating, diarrhea, constipation), unexplained iron deficiency anemia, infertility, family history of celiac, type 1 diabetes, autoimmune thyroid disease, or considering a gluten-free diet (must test BEFORE going gluten-free).
Sample Type
Blood draw
Fasting
Not required
Results In
3–7 business days
Performed At
Quest
Your Celiac Disease Panel results will include values for each of the 5 biomarkers tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–7 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
You must be eating gluten daily for at least 2–3 weeks before this test. Do not start a gluten-free diet before testing.
A Celiac Disease Panel costs $124.99 at TestWell — $130.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the closest equivalent lists at $119.00 at Labcorp OnDemand (list prices checked Sep 12, 2026; see the notes on how the products differ). Hospital outpatient labs typically bill around $250.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible. Full cost breakdown →
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest) | $124.99 | $130.99 | Includes the one $6 lab processing fee, charged once per order |
| TestWell (drawn at BioReference — New York & New Jersey) | $74.99 | $80.99 | New York and New Jersey orders route to BioReference; Quest Health and Labcorp OnDemand don't take self-ordered draws in those states |
| Labcorp OnDemand (Labcorp's own site) | $119.00 | $119.00 | Antibody lists differ; both are celiac serology panels · list price checked Sep 12, 2026 |
| Hospital outpatient lab, self-pay (typical) | $250.00 | $250.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 8821 · BioReference code 3472-8. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Yes — critically. The Celiac Panel measures the immune response to gluten. If you've already gone gluten-free, antibody levels drop and you'll get a false negative. Eat at least 1-2 servings of gluten daily for 6-8 weeks before testing.
TestWell charges $124.99 — vs $89 at Quest Direct and $150-$350 at GI clinics.
About 2-3% of the population (and ~10% of people with celiac) have selective IgA deficiency. Without checking Total IgA, a tTG-IgA test would falsely come back negative even with active celiac disease. Total IgA acts as the validity check.
83516 + 86225 + 86231 (Celiac antibody panel). HSA/FSA eligible.
Positive celiac antibodies require endoscopic small-bowel biopsy for definitive diagnosis. Don't go gluten-free between the blood test and the biopsy — it can normalize the biopsy result and obscure the diagnosis.
Ordered directly, the closest equivalent lists at $119.00 at Labcorp OnDemand (prices checked September 2026). TestWell orders the same test at the same Quest patient service centers for $124.99 — $130.99 all-in with the $6 per-order lab processing fee — paid out of pocket at checkout with no insurance, doctor's visit or draw fee; HSA and FSA cards are accepted.
Celiac Disease Panel results are typically ready in 3–7 business days after your draw at Quest. TestWell emails you the moment they post, and your results dashboard shows each marker against its reference range with a plain-English explanation.
No, fasting is not required for a Celiac Disease Panel — you can eat normally and book any time of day. You must be eating gluten daily for at least 2–3 weeks before this test. Do not start a gluten-free diet before testing.
Order the Celiac Disease Panel online from TestWell for $124.99 (plus a $6 per-order lab processing fee) — no doctor's visit, referral or insurance needed. A licensed physician authorizes the order, then you walk into any Quest patient service center near you for the draw (the lab locator on our site lists the closest ones by ZIP code), and results arrive in 3–7 business days.
The Celiac Disease Panel is Quest Diagnostics test code 8821 ("Tissue Transglutaminase (tTG) Antibody (IgA)"), BioReference code 3472-8 ("Transglutaminase, IgA Abs."). TestWell orders it under those codes for $124.99 at Quest or BioReference — no doctor's visit or insurance required, results in 3–7 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$124.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Better value: the Gut Health Panel
Save $83.96This test is part of the Gut Health Panel — 5 tests · 35 biomarkers for $129.99, $83.96 less than à la carte.
$129.99$213.95
5 tests · 35 biomarkers
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