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Test Name

Inflammatory Bowel Disease Differentiation Panel

CPT Code(s)

86021 (x3), 86671 (x2)

Includes

ANCA Screen with Reflex to ANCA Titer, Myeloperoxidase Ab (MPO), Proteinase-3 Antibody, Saccharomyces cerevisiae Ab (ASCA) IgG, Saccharomyces cerevisiae Ab (ASCA) IgA
If ANCA Screen is positive, C-ANCA Titer and/or  P-ANCA Titer  and/or atypical P-ANCA Titer will be performed at an additional charge (CPT code(s): 86021 for each titer performed) .

Methodology

Immunoassay (IA)

Reference Range(s)

ANCA Screen Negative
P-ANCA Titer <1:20
C-ANCA Titer <1:20
Atypical P-ANCA Titer <1:20
Myeloperoxidase Antibody
<1.0 AI No antibody detected
≥1.0 AI Antibody detected
Proteinase-3 Antibody
<1.0 AI No antibody detected
≥1.0 AI Antibody detected
Saccharomyces cerevisiae (IgG)
≤20 U Negative
20.1-29.9 U Equivocal
≥30 U Positive
Saccharomyces cerevisiae (IgA)
≤20 U Negative
20.1-24.9 U Equivocal
≥25 U Positive

Clinical Significance

These tests are intended to aid in the diagnosis of Crohn's Disease. A positive P-ANCA aids in the differentiation of patients with ulcerative colitis.

Alternative Name(s)

IBD Panel

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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Inflammatory Bowel Disease Differentiation Panel
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