Barley (Hordeum vulgare) IgE
Test Code: 50410S
Cpt Code:86003 (x1)
Clinical UtilityThis assay is used to detect allergen specific-IgE using the ImmunoCAP® FEIA method. In vitro allergy testing is the primary testing mode for allergy diagnosis.
ProcedureThe ImmunoCAP® FEIA method uses as the solid phase a flexible, hydrophobic cellulosic polymer to which allergen has been covalently linked. The advantage of this system is that it has a very high antigen binding capacity when compared to other systems and it has minimal non-specific binding with high total IgE. Viracor-IBT Laboratories provides an optional low range calibrator at 0.1 kU/L and a 0/1 class. This test has been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.
ImmunoCAP® Quantitative Scoring Guide:
|4||17.5-49.9||Very High Positive|
|5||50.0-99.9||Very High Positive|
|6||≥100||Very High Positive|
Note that Viracor-IBT includes an extra calibrator at 0.10 kU/L and uses it to
define an optional equivocal class.
Causes For RejectionLipemic samples may lead to rejection
Turnaround Time1-2 Business day from receipt of specimen
NY approved.0.5 mL serum, ambient, frozen or refrigerated
4 weeks ambient
4 weeks refrigerated
>4 weeks freeze
Specimens are approved for testing in New York only when indicated in the Specimen Information field above.
The CPT codes provided are based on Viracor-IBT's interpretation of the American Medical Association's Current Procedural Terminology (CPT) codes and are provided for general informational purposes only. CPT coding is the sole responsibility of the billing party. Questions regarding coding should be addressed to your local Medicare carrier. Viracor-IBT assumes no responsibility for billing errors due to reliance on the CPT codes illustrated in this material.
Position Statement 12 April 1990 published in Immunology and Allergy Practice.
Project Hope, Center for Health Affairs: "The Cost Implication and Cost Effectiveness of Allergy In Vitro Diagnostic Testing.", October 1988.
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