Clostridium difficile Toxin/GDH with Reflex to PCR
Test code
CPT code(s)*
Clinical significance
Test resources
Details
Includes
If GDH Antigen is detected and Toxin A and B are not detected, then Clostridium difficile Toxin B, Qualitative, Real-Time PCR will be performed at an additional charge (CPT code(s): 87493).
or
If GDH Antigen is not detected and Toxin A and B are detected, then Clostridium difficile Toxin B, Qualitative, Real-Time PCR will be performed at an additional charge (CPT code(s): 87493).
Methodology
Immunoassay (IA)
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 5 grams or 5 mL unformed stool |
| Minimum volume | 1 gram or 1 mL |
| Collection instructions | Collect fresh stool in sterile, leak-proof container without media, preservative, or metal ion. For patients requiring the use of diapers, first line the diaper with clean plastic to prevent absorption. Then transfer 5 grams or 5 mL of the stool specimen from the plastic lined diaper to the sterile container. Do not submit the diaper itself. Cap securely. Do not use any preservative, media or additive. |
| Transport container | Clean plastic screw-cap, leak-proof container |
| Transport temperature | Frozen |
| Specimen stability | Room temperature: Unacceptable Refrigerated: 72 hours Frozen: 30 days |
| Reject criteria | Formed stool • Stool submitted in transport media or swab • Rectal swab • Unfrozen stool >72 hours old • Received room temperature |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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