Whats an “esoteric” test – if these are valid, why won insurance pay for them?
Typically, “esoteric” refers to tests performed at reference laboratories that use rigorous testing that exceeds what most hospitals and basic labs can do. Many large commercial lab companies outsource complex tests to research labs. Contact your insurance plan’s lab provider to learn whether or not these tests can be covered under your plan directly or through your in-network lab.
