• Print
  • Download PDF

Respiratory Disease Profile Region XVII IgG

Test Code: 403201P

Cpt Code:

82784 (x1) 86001 (x17)

Clinical Utility

Although there have been many publications concerning the measurement of allergen-specific IgG, the clinical utility of such tests has not been established except in special situations. Thus, the quantitative IgG test should only be ordered by specialists who recognize the limitations of the test. The normal reference ranges reported represent the expected results for individuals who have no unusual exposure and have not been immunized with the indicated allergen. The ranges reported have no disease-associated significance.


Enzyme immunoassay (FEIA). A standard curve is used to calculate the specific IgG 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 Range

The units are micrograms/mL of specific IgG. The reference varies by allergen.

  mcg/mL of IgG
Lower Limit of Quantitation* 2.0
Upper Limit of Quantitation** 200

Reference ranges vary by allergen.

Causes For Rejection

Lipemic samples may lead to rejection.

Turnaround Time

Setup: M-F. TAT 3 business days from receipt of specimen

Specimen Information

serum - NY approved. 1 mL serum, ambient, frozen or refrigerated.

1 week 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.

<< Back to list