Test Code: 50130
Cpt Code:83520 (x1)
Clinical UtilityThe allergen-specific IgA assay is an in vitro quantitative assay. It is intended for use as an aid in the diagnosis of IgA mediated allergic disorders in conjunction with other clinical findings.
ProcedureEnzyme immunoassay (FEIA). A standard curve is used to calculate the specific IgA concentrations. The calibrators are referenced to the International Reference Preparation for serum immunoglobulins. This test has not been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.
Assay Range1-100 mg/L
Turnaround TimeTAT 5-7 business days from receipt of specimen
2 weeks ambient
4 weeks refrigerated
> 4 weeks frozen
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.