Which of the following could cause a claim to be rejected?

Claim rejection can occur for various reasons within the billing process, and billing or coding errors are among the most significant causes. When medical claims are submitted, they must contain accurate codes that correspond to the procedures performed and the diagnoses made. If there are errors in these codes—whether they are due to incorrect codes, missing codes, or even discrepancies between what was provided to the patient and what is reported—the insurance company may reject the claim outright.

Additionally, coding requires adherence to specific guidelines and conventions. For example, using an outdated code, a code that does not match the documentation provided, or submitting a claim with incomplete information can lead to a rejection. Ensuring accuracy in billing and coding is essential for claim approval and for receiving appropriate reimbursement for services rendered. This focuses on the integrity of the information submitted and highlights the necessity for accuracy in the billing process.