A 5-year-old who has an allergy history experienced a possible reaction to peanuts.

1. Procedure and CPT® Code Selection:

The test performed is a quantitative, high-sensitive fluorescent enzyme immunoassay to measure specific IgE for recombinant peanut components.

CPT® Code 86008 is specific for allergen-specific IgE testing for recombinant or component-resolved allergens. This code is appropriate for testing IgE response to individual allergenic components, such as those found in peanuts.

2. Rationale for Excluding Other Options:

Code 86003 is used for allergen-specific IgE testing but does not apply to recombinant or component-resolved allergens, which are covered by 86008.

Code 86001 is for total IgE testing and does not measure specific allergens.

Code 86005 is for a general allergy screening (not specific IgE or component testing) and is not appropriate for component-resolved peanut allergen testing.

3. AAPC and CPT® Coding Guidelines:

According to AAPC guidelines, 86008 should be used for specific IgE testing related to recombinant allergens or component testing.

Therefore, the correct answer is C. 86008.