Lab tests
C. diff (Clostridium) antigen/toxin test, immunoassay cost in Wisconsin
C. diff (Clostridium) antigen/toxin test, immunoassay is a lab test. Many labs sell tests directly to the public for a flat cash price, often far below hospital prices.
Typical cash price
In Wisconsin
From 119 hospital and 0 clinic prices in Wisconsin.
Nationwide typical: $66.13 (most listed prices $15.62–$209).
Cheapest in Wisconsin
- Essentia Health St. Mary's Hospital-SuperiorC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$11.08
Doctor fees are billed separately.
Source: Essentia Health St. Mary's Hospital-Superior price file · checked Oct 2026 - Mental Health Emergency Center, IncC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$16.50
Doctor fees are billed separately.
- $20.84
Doctor fees are billed separately.
Source: Tomah Memorial Hospital price file · checked Oct 2026 - $23.70
Doctor fees are billed separately.
Source: Beloit Memorial Hospital price file · checked Oct 2026 - Froedtert Pleasant Prairie HospitalC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$24.88
Doctor fees are billed separately.
Source: Froedtert Pleasant Prairie Hospital price file · checked Oct 2026 - SSM Health St. Mary's Hospital - MadisonC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$29.70
Doctor fees are billed separately.
Source: SSM Health St. Mary's Hospital - Madison price file · checked Oct 2026 - $30.56
Doctor fees are billed separately.
Source: Bellin Memorial Hospital price file · checked Oct 2026 - $35.95
Doctor fees are billed separately.
Source: River Falls Area Hospital price file · checked Oct 2026 - Ascension NE Wisconsin - Mercy Campus (Ascension NE Wisconsin, Inc.)C. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$37.05
Doctor fees are billed separately.
Source: Ascension NE Wisconsin - Mercy Campus (Ascension N price fil · checked Oct 2026 - Ascension NE Wisconsin - St. Elizabeth Campus (Ascension NE Wisconsin, Inc.)C. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$37.05
Doctor fees are billed separately.
Source: Ascension NE Wisconsin - St. Elizabeth Campus (Asc price fil · checked Oct 2026 - $38.40
Doctor fees are billed separately.
Source: Fort HealthCare price file · checked Oct 2026 - Froedtert Community Hospital - MequonC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$38.78
Doctor fees are billed separately. +3 more in this system at the same published price.
Source: Froedtert Community Hospital - Mequon price file · checked Oct 2026
See all prices for C. diff (Clostridium) antigen/toxin test, immunoassay
Common questions
Do I need a doctor's order?
In most states, direct-to-consumer labs can sell many tests without a separate doctor visit. Some states and some tests still require an order.
Is the blood draw included?
Usually yes for lab stores and booking sites. Hospitals sometimes bill the draw (venipuncture) separately.
Why are prices so different?
Each hospital and clinic sets its own cash price. Hospitals publish prices because federal rules require it; clinics and booking sites set prices to compete. The same service can cost several times more at one place than at another nearby.
Can I pay cash if I have insurance?
Yes. You can choose to self-pay. A cash price is often lower than what you would pay before meeting your deductible. Cash payments may not count toward your deductible, so check with your plan. Our cash vs. insurance tool can help you decide.
What is a Good Faith Estimate?
If you are uninsured or paying cash, providers must give you a Good Faith Estimate of the cost on request. If your final bill is $400 or more above the estimate, you can dispute it.