C Difficile Toxin/GDH Antigen with Reflex to PCR

Message

If the GDH antigen is positive and the toxin A and B is negative or the GDH antigen is negative and the toxin A and B is positive, the Clostridium difficile by PCR test will be reflexed and performed at an additional charge.

Test Code

1236201086

Alias/See Also

C DIFF
C DIFF TOX
C DIFF AG
CDIF
Clostridium

Includes

C Difficile GDH Antigen
C Difficile Toxin A and B

Preferred Specimen

Unformed stool passed directly into a clean, dry container

Instructions

1. Pass unformed stool directly into a clean, dry container. Unformed stool is stool that takes the shape of its container.
2. Secure cap. Label specimen noting source of stool.
3. According to Guthrie CDI policy, the stool should be diarrheal stool (diarrhea is defined as > 3 liquid stools in 24 hours) and the Nursing Flowchart for Appropriate C. difficile Testing should be completed prior to specimen collection.

Transport Temperature

Refrigerated

Specimen Stability

Refrigerated: 72 hours

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Sources other than stool
Formed stool
>= 2 specimens per week
Improper specimen collection, storage, and transport

Reference Range

C Diff GDH Antigen: Negative
C Diff Toxin A and B: Negative
Toxigenic C Diff: Negative
No C difficile present

Performing Laboratory
Guthrie Clinic Lab
Corning Hospital Lab
Troy Hospital Lab
GMG Laboratory at Towanda
Cortland Medical Center Lab

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.