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Tissue Transglutaminase Antibody IgG,IgA

Test Code
LAB3171


Alias/See Also
1231600027


CPT Codes
86364 (2)

Includes
ANTI-TISSUE TRANSGLUTAMINASE ANTIBODY IGG
ANTI-TISSUE TRANSGLUTAMINASE ANTIBODY IGA


Preferred Specimen
7 mL Red top tube or Gold SST top tub or 5 mL Lavender EDTA Tube
For neonates: 2 pedi Reds or 2 Lavender pedi tubes


Minimum Volume
7 mL serum
5 mL in Lavender EDTA tube


Transport Temperature
Refrigerated


Specimen Stability
Room Temperature: up to 24 hours
Refrigerated (2-8C): up to 7 days
Frozen: longer storage


Methodology
BioRad BioPlex

Reference Range
ANTI-TISSUE TRANSGLUTAMINASE ANTIBODY IGG
Males/Females:
<15.0 U/mL
Interpretation:
Negative
ANTI-TISSUE TRANSGLUTAMINASE ANTIBODY IGA
Males/Females:
<15.0 U/mL
Interpretation:
Negative


Performing Laboratory
LITTLE ROCK LABORATORY


Last Updated: August 26, 2026


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.