Pancreatic Exocrine Cell Antibody [16143X]

Test Code

CPT Codes

Preferred Specimen
0.5 mL serum

Minimum Volume
0.3 mL

Transport Container
Plastic screw-cap vial

Transport Temperature
Room temperature

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

Immunofluorescence Assay (IFA)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Wed Morning; Report available: 3 days

Reference Range


Clinical Significance
Antibodies to pancreatic exocrine cells (ExPA) have been suggested as a very specific Crohn's Disease (CD) serological marker. Clinical studies reported a prevalence of 30-50% in CD patients. In spite of the relatively low sensitivity, ExPA can detect a subpopulation of CD patients that are negative for other CD markers (ASCA IgG, ASCA IgA), thus being very useful in combination with other IBD tests.

Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano 
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

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.