TISSUE TRANSGLUTAMINASE (TTG) ANTIBODY, IGG, SERUM

Message

Included in Celiac Screening Profile, IgA with reflex to IgG, Serum

Test Code

LAB3041013

CPT Codes
83516

Preferred Specimen

Gold Top Tube
Pediatric: 2 Gold Top Microtainers

Minimum Volume

0.5 mL serum

Instructions

Centrifuge within 1 hour of collection. Separate serum from cells if Red Top Tube. Aliquot 0.5 mL serum.

Transport Temperature

Refrigerated

Specimen Stability

Refrigerated: 7 days

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

Failure to fully fill tube

Methodology
Multiplex Immunoassay

Setup Schedule

Monday, Wednesday, and Friday Dayshift

Reference Range

Negative

Clinical Significance

For individuals with IgA deficiency:
-Evaluating patients suspected of having celiac disease, including patients with compatible clinical symptoms, patients with atypical symptoms, and individuals at increased risk (family history, previous diagnosis with associated disorder, positivity for HLA DQ2 and/or DQ8
-Screening test for dermatitis herpetiformis
-Monitoring adherence to gluten-free diet in patients with dermatitis herpetiformis and celiac disease

Performing Laboratory
West Virginia University Hospital, Inc.

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.