How Much Does an H. pylori Test Cost? Breath, Stool and Blood Test Prices by Setting, With and Without Insurance

Three tests are sold under one name, and the price spread is mostly about which one — and where. The urea breath test and the stool antigen test both detect a current, active infection and are the tests guidelines recommend for diagnosis and for confirming cure. The blood antibody test is the cheapest ($40–$80 self-pay) but stays positive for years after an infection is gone, so a positive cannot be acted on and most clinicians no longer order it. Endoscopy with biopsy ($1,000–$3,000 self-pay) finds H. pylori too, but it is ordered for alarm symptoms or age, not for a cost-effective diagnosis. For the two useful tests: a doctor's office or urgent care adds a $100–$250 visit to a lab bill of $100–$250; the labs' own sites sell the breath test for $200–$209; through TestWell the same breath test at the same labs is $129.99 and the stool antigen test $149.99, plus one $6 fee. Whatever the route, plan on paying for the test twice — once to find the infection, once to prove it is gone.

Self-pay prices. Where a route requires a visit, the visit is included because you cannot get the test without it.

Breath or stool? Both are about 94–95% sensitive and specific and are equally accepted for diagnosis and test of cure. The breath test is a 20–30-minute visit at the draw site (you drink a solution and breathe into collection tubes) and is cheaper; the stool test is collected at home and returned to the lab, with no appointment to sit through. The H. pylori testing guide compares the three methods in detail.

If you have ongoing indigestion, upper-abdominal discomfort, bloating or reflux-like symptoms and no alarm features, the guideline-endorsed approach for adults under 60 is to test for active infection and treat if positive — which means a breath test or a stool antigen test, not a blood test. Stool and breath tests look for live, active bacteria; a positive result means an active infection that should be treated, because H. pylori causes most ulcers and is a WHO class 1 carcinogen for stomach cancer.

The blood antibody test is the trap in the price list. It is the cheapest option and the one most likely to be offered by a clinic that does not run the others, but antibodies persist long after the infection is gone, so it cannot tell you whether you need treatment now — and it can never be used to confirm a cure. Paying $40–$80 for a result that has to be repeated with a $130–$150 test is the most common way people spend more than they needed to.

Alarm features — trouble swallowing, vomiting, weight loss, black or bloody stools, a new problem after age 60 — warrant an endoscopy rather than a stool or breath test, and that is a clinician's decision to make with you.

Yes, as a diagnostic test. Testing because of symptoms, a history of ulcers, long-term NSAID or aspirin use, or a family history of stomach cancer is covered when a clinician orders it, against your copay or deductible; so is the test of cure after treatment. It is not a preventive service, so there is no no-cost version and a 'just checking' order without symptoms may be denied. Where the test is done matters once it is on your deductible: a plan's negotiated rate for a breath test at a hospital lab can be $150–$300, while the cash price through TestWell is $129.99. If you have a high deductible, order it yourself and bring the result to the visit where the prescription is written. HSA and FSA funds pay in any setting.

Stool and breath tests look for live, active bacteria, so anything that suppresses H. pylori temporarily can produce a false negative — and a false negative is a wasted test. Proton-pump inhibitors (omeprazole, esomeprazole, pantoprazole, lansoprazole): stop for 2 weeks before the sample. Famotidine (Pepcid) and antacids like Tums are fine to use in the meantime and don't affect the test. Antibiotics and bismuth (Pepto-Bismol): stop for 4 weeks before testing. For the breath test: nothing to eat or drink for 1 hour before, no smoking. For the stool test: no special diet; collect the sample per the kit instructions and return it promptly.

If you cannot stop a PPI for two weeks — some people with severe reflux can't — tell the clinician who reviews your results; a positive test is still reliable, but a negative one is less certain.

A positive test is the start of the spending, not the end. Treatment needs a prescription — usually 14 days of two antibiotics plus a PPI, sometimes with bismuth — so budget a clinician or telehealth visit ($50–$150 self-pay) and the medications ($50–$200 for a generic regimen without insurance, less with a discount card). The test of cure is the line most people forget. Because first-line treatment fails 10–20% of the time (largely antibiotic resistance), guidelines recommend confirming eradication in everyone treated. Retest with a stool antigen or breath test at least 4 weeks after finishing antibiotics and after 2 weeks off PPIs. Never use the blood antibody test for this — it will still be positive. Through TestWell that second test is another $129.99 or $149.99; through a clinic it is another visit and another lab bill.

A negative result with persistent symptoms points elsewhere: acid reflux, functional dyspepsia, gallbladder disease, celiac disease or medication side effects — a clinician conversation, not another H. pylori test.

• Symptoms, no alarm features, want an answer this week: the breath test ($135.99 all-in through TestWell) at any Quest or Labcorp; stop PPIs 2 weeks and antibiotics or bismuth 4 weeks beforehand.
• Prefer not to sit for a breath test: the stool antigen test ($155.99 all-in), collected at home and dropped at a Quest location.
• Insured, seeing a clinician anyway: have them order the breath or stool test and send you to an independent lab rather than a hospital lab; your copay may be the cheapest route — but decline the blood antibody test if it is offered.
• After treatment: wait the full 4 weeks off antibiotics and 2 weeks off PPIs before the test of cure; testing early risks paying a third time.
• Alarm features or new symptoms after 60: see a gastroenterologist about endoscopy rather than ordering a stool or breath test first.
• Household member tested positive: only test yourself if you have symptoms — routine testing of asymptomatic contacts is not recommended, and it is money spent on a result that would not change care.

Every test carries one $6 lab processing fee per order, charged once however many tests you add. H. pylori Urea Breath Test $129.99 at Quest (test code 14839) or Labcorp (180836); CPT 83013 — vs $200 at Quest Health and $209 at Labcorp OnDemand. H. pylori Stool Antigen Test $149.99 at Quest (34838); CPT 87338. A licensed physician authorizes the order, the requisition is emailed, most locations take walk-ins for the breath test (call ahead to confirm the site performs it), and results post to your account in 3–5 business days with a plain-language summary you can take to a clinician or telehealth visit for treatment. Quest Health and Labcorp OnDemand list prices are re-checked monthly and shown on the test page.