C. diff test cost in Riverside, CA — inpatient
In Riverside-San Bernardino-Ontario, CA, 10 hospitals list a cash price for C. difficile toxin gene test (stool PCR) as an inpatient: from $38.56 to $236.25, with a median of $109.92. The lowest listed price is at Riverside University Medical Center — $71.36 less than the median here. Across California, the median is $179.25 at 99 hospitals.
Cash prices at 10 facilities across 8 cities for code 87493, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 2, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Cdiff Pcr Confirmation | $38.56 | $38.56 | $22.91–$43.33 | — | — source file |
| Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Cdiff Pcr Confirmation | $38.56 | $38.56 | $22.91–$43.33 | — | — source file |
| Riverside University Medical Center one side Moreno Valley, CA · (951) 486-4000 HC Qu C Diff Toxin B Ql Rt Pcr | $47.12 | $47.12 | $22.91–$47.12 | — | — source file |
| Riverside University Medical Center one side Moreno Valley, CA · (951) 486-4000 HC Qu C Diff Toxin B Ql Rt Pcr | $47.12 | $47.12 | $22.91–$47.12 | — | — source file |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC CDIFF NUCLEIC ACID TEST | $87.30 | $194.00 | $38.80–$164.90 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC CDIFF NUCLEIC ACID TEST | $87.30 | $194.00 | $35.11–$145.50 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC CDIFF NUCLEIC ACID TEST | $87.30 | $194.00 | $38.80–$174.60 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC SOM C DIFF PCR STOOL | $96.00 | $96.00 | $17.38–$72.00 | — | Sep 2, 2026 source file |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC SOM C DIFF PCR STOOL | $96.00 | $96.00 | $19.20–$81.60 | — | Sep 2, 2026 source file |
| Loma Linda University Behavioral Medicine Center Redlands, CA HC SOM C DIFF PCR STOOL | $96.00 | $96.00 | $52.80–$76.80 | — | Aug 31, 2026 source file |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC SOM C DIFF PCR STOOL | $96.00 | $96.00 | $19.20–$86.40 | — | Sep 2, 2026 source file |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC CLOSTRIDIUM DIFFICILE TOXINS AMPLIFIED PROBE | $123.84 | $258.00 | — | 52% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 INF AGENT DET NUCLEIC ACID CLOSTRIDIUM AMP PROBE | $152.88 | $294.00 | $25.00–$75.00 | 48% | — source file |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 INF AGENT DET NUCLEIC ACID CLOSTRIDIUM AMP PROBE | $152.88 | $294.00 | $25.00–$75.00 | 48% | — source file |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 INF AGENT DET NUCLEIC ACID CLOSTRIDIUM AMP PROBE | $152.88 | $294.00 | $25.00–$75.00 | 48% | — source file |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 C difficile Toxin Gene NAA LC | $236.25 | $315.00 | — | 25% | Jul 1, 2026 source file |
Inpatient: lowest $38.56, median $109.92, highest $236.25 — a 6.1× difference within the same market.
As an outpatient, the same code is billed by 15 facilities here, median $96.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 8 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This stool test looks for the toxin gene of Clostridioides difficile, a cause of severe diarrhea, often after antibiotics or a hospital stay.
What the price covers
The price usually covers running the stool test; the collection kit is often included.