New claims requirement: add-on codes must include primary procedure starting December 2024

Beginning with claims processing on or after December 1, 2024, we will update our outpatient facility claims editing process to deny claim lines when an add-on code is reported without a primary procedure code.

An add-on code is a specific type designated by the HCPCS or CPT^®. These codes describe additional procedures or services performed with a primary procedure.

According to CPT guidelines, add-on codes must be reported with a primary procedure code.

If you believe you have received a claim denial in error, please follow our claim dispute process.

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