Tissue Transglutaminase Antibody, IgA

Message

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

Test Code

TTGIGA

Alias/See Also

8821;
TTG IgA

CPT Codes
86364

Preferred Specimen

1 mL serum (minimum 0.5 mL)

Instructions

SST or Red top: Avoid hemolysis. Invert a minimum of 5 times, then allow to clot in an upright position for 30 minutes. Centrifuge the the tube for at least 10 minutes. Keep tightly stoppered.

Transport Container

SST (speckled top), Red top , Plastic Vial (transfer) tube

Transport Temperature

Refrigerated (preferred)

Specimen Stability

Room Temperature = n/a
Refrigerated = 7 days
Frozen = at least 7 days

Methodology
EIA

Setup Schedule

Monday, Wednesday, Friday
BS

Report Available

3 days

Reference Range

SEX	AGE	Report Normals	Units
N/M/F	1000Y	< 4	U/ML

Clinical Significance

Tissue Transglutaminase Antibody, IgA, is useful in diagnosing gluten-sensitive enteropathies, such as Celiac Sprue Disease, and an associated skin condition, dermatitis herpetiformis.

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

Last Updated: January 19, 2022

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.