Tissue Transglutaminase Antibody (IgG, IgA) : 11073

Test Code
TTGAG or 11073


Alias/See Also
tTG IgA Antibody, tTG IgG Antibody, Tissue Transglutaminase IgA, Tissue Transglutaminase IgG, tTG-IgA, tTG-IgG


CPT Codes
86364x2

Includes
Panel includes: IgG and IgA antibodies.


Transport Container
Preferred Specimen
1 mL serum   
Minimum Volume
0.5 mL


Transport Temperature
Room temperature.


Specimen Stability
Room temperature: 7 days; Refrigerated: 14 days; Frozen: 30 days


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


Methodology
Multiplex flow Immunoassay

Setup Schedule
Monday & Wednesday & Friday


Report Available
2-4 days


Reference Range
Tissue Transglutaminase Antibody, IgG
<15.0 U/mL Antibody not detected 
≥15.0 U/mL Antibody detected
   
Tissue Transglutaminase Antibody, IgA
<15.0 U/mL Antibody not detected 
≥15.0 U/mL Antibody detected 


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. The IgG test is useful in patients who are IgA-deficient. The IgG test also provides support for gluten-sensitive enteropathies beyond the IgA test.


Performing Laboratory
med fusion



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.