GLIADIN (DEAMIDATED) ANTIBODIES EVALUATION, IgA, SERUM

Additional Codes

Software	Test Code
Label Text	GLIAA
EPIC	LAB871

Performing Laboratory

NorDx Laboratories

Useful For

Evaluating patients suspected of having celiac disease, including patients with symptoms compatible with celiac disease, patients with atypical symptoms, and individuals at increased risk of celiac disease.
Also useful for evaluating the response to treatment with a gluten-free diet.

Method Name

Enzyme Linked Immunosorbent Assay (ELISA)

Reference Values

Negative: < 20 U

Weak Positive: 20-30 U

Moderate to Strong Positive: > 30 U

According to World Gastroenterology Organization Practice Guidelines on celiac disease, antigliadin antibody assays have low sensitivity and specificity, and relatively poor positive predictive value in the general population. The recommended serology test for celiac disease diagnosis is the IgA anti-tissue transglutaminase antibody (celiac disease panel CDP).

Days and Times Test Performed

Tuesday

Report Available

1 Day

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 0.8 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.5 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

1. Spin specimen, separate from clot and send refrigerated.

2. If specimen will not arrive within 2 days of draw, send specimen FROZEN in plastic vial on dry ice.

Specimen Stability Information

Specimen Type: Serum

Frozen: 3 Months

Refrigerated: 48 Hours

Must be spun/separated within: 2 Hours

Add On Capable

Not Permitted

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
86258	Gliadin (deaminated) (DGP) antibody, each immunoglobulin (Ig) class

Performing Laboratory Location