What does an "X" in Box 27 signify?

An "X" in Box 27 indicates that the physician does not accept assignment of benefits. This means that the healthcare provider has chosen not to accept payment directly from the insurance company for the services rendered. Instead, the patient will be responsible for paying the provider and will handle the claim submission to their insurance company on their own. Understanding this box is crucial as it affects how claims are processed and how payments are managed between the patient, provider, and insurance company.

This choice reflects an important aspect of medical billing, where acceptance of assignment plays a significant role in the payment dynamics and patient responsibility. In contrast, if a physician accepts assignment of benefits, it would not be indicated with an "X" in this box, as that would mean the insurance company pays the provider directly.