In-Office Laboratory Tests

The laboratory tests listed below are allowed to be performed in a physician’s office. All other laboratory tests must be referred to Quest Diagnostics. For a list of Quest Diagnostics laboratory locations, please visit

Effective October 1, 2021 In-office laboratory codes (PDF)

If a laboratory test performed in the physician’s office is not listed above, the claim will be denied with the following message: “Services covered only when performed by in-network laboratory.”