Clostridioides difficile Screen

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

Alias/See Also
C. diff Toxin B

CPT Codes
87493 for GDH Ag EIA testing. If Toxin A/B confirmatory EIA testing is done, additional charge 87324.

Preferred Specimen
5 mL Stool unpreserved in sterile leak proof container
NOTE: Colonoscopy samples are unacceptable for testing.

Minimum Volume
2 mL

Unpreserved in sterile leak proof container

Transport Container
Clean Screw Capped Container

Transport Temperature
Room Temperature

Specimen Stability
Room Temperature = 24 hours
Refrigerated = 72 hours
Frozen = 70C - 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Reject if formed stool.
Reject if colonoscopy sample

EIA testing

Setup Schedule
Monday - Friday testing performed at 10am and 6pm
Saturday-Sunday testing performed at 1pm

Report Available
1 Day

Clinical Significance
C. difficile is the major cause of antibiotic-associated diarrhea (AAD) and pseudomembranous colitits.

Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

Last Updated: November 7, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.