RAST Type Tests

RAST, FAST, multiple antigen simultaneous testing (MAST), and ELISA methods that detect specific IgE to clinically important allergens are covered when supported by a complete history and physical examination. Tests that assess IgG responses (including ELISA/Act qualitative antibody testing, LMRA by ELISA/Act, qualitative multi-allergen screens, and IgG or IgG-subclass testing for food allergy) are considered not medically necessary and are denied.

"RAST, FAST, multiple antigen simultaneous tests (MAST), and ELISA for specific IgE are covered to detect IgE antibodies to clinically important allergens when indicated by findings on a complete hi..."

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