Celiac Disease Reflexive Cascade
Ordering Recommendation
Preferred reflex screening test for celiac disease. May aid in monitoring adherence to gluten-free diet.
Quantitative Nephelometry/Semi-Quantitative Enzyme-Linked Immunosorbent Assay//Semi-Quantitative Indirect Fluorescent Antibody
2-6 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 1 mL)  
Storage/Transport Temperature
Unacceptable Conditions
Plasma. Contaminated, hemolyzed, grossly icteric or grossly lipemic specimens.  
After separation from cells: Ambient: 8 hours; Refrigerated: 8 days; Frozen: 1 year (if frozen within 24 hours)  
Reference Interval
Effective February 16, 2016
Test Number
Reference Interval
0050340Immunoglobulin AEffective February 16, 2016
0-30 days: 1-7 mg/dL
1 month: 1-53 mg/dL
2 months: 3-47 mg/dL
3 months: 5-46 mg/dL
4 months: 4-72 mg/dL
5 months: 8-83 mg/dL
6 months: 8-67 mg/dL
7-8 months: 11-89 mg/dL
9-11 months: 16-83 mg/dL
1 year: 14-105 mg/dL
2 years: 14-122 mg/dL
3 years: 22-157 mg/dL
4 years: 25-152 mg/dL
5-7 years: 33-200 mg/dL
8-9 years: 45-234 mg/dL
10 years and older: 68-408 mg/dL

0051689Celiac Disease Dual Antigen Screen19 Units or less: Negative - No significant level of detectable IgA or IgG antibodies against human tissue transglutaminase or gliadin peptide.

20 Units or greater: Positive - Presence of IgA and/or IgG antibodies against human tissue transglutaminase and/or gliadin peptide; suggests possibility of certain gluten sensitive enteropathies such as celiac disease and dermatitis herpetiformis.
0051357Deamidated Gliadin Peptide (DGP) Antibody, IgA19 Units or less: Negative
20-30 Units: Weak Positive
31 Units or greater: Positive
0051359Deamidated Gliadin Peptide (DGP) Antibody, IgG19 Units or less: Negative
20-30 Units: Weak Positive
31 Units or greater: Positive
0097709Tissue Transglutaminase (tTG) Antibody, IgA3 U/mL or less: Negative
4-10 U/mL: Weak Positive
11 U/mL or greater: Positive
0050736Endomysial Antibody, IgA by IFALess than 1:10
0056009Tissue Transglutaminase Antibody, IgG5 U/mL or less: Negative
6-9 U/mL: Weak Positive
10 U/mL or greater: Positive

Interpretive Data
Refer to report.

The Celiac Disease Reflexive Cascade begins with Immunoglobulin A. Depending on findings, one or more reflexive tests may be required in order to provide a clinical interpretation. Tests added may include Tissue Transglutaminase Antibody, IgA; Tissue Transglutaminase Antibody, IgG; Endomysial Antibody, IgA by IFA; Deamidated Gliadin Peptide (DGP) Antibody, IgA; Deamidated Glaidin Peptide (DGP) Antibody, IgG; and/or Celiac Disease Dual Antigen Screen. Refer to the Celiac Testing Algorithm found at Additional charges apply.
CPT Code(s)
82784; if reflexed additional CPT codes may apply: 83516, 83516 x2 and/or 86256.
add 83516; if reflexed to tTG IgA and Gliadin IgA, add 83516 x 2; if reflexed to tTG IgG and Gliadin IgG, add 83516 x2.; if IgA is greater than or equal to the normal age range, add 83516; if reflexed, add 86256 and 83516.
Component Test Code*Component Chart NameLOINC
0050340Immunoglobulin A2458-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.