What is a clean claim in medical billing?

• A. A claim that has been pre-approved by the payer.
• B. A claim submitted only electronically.
• C. A claim free of errors (demographics, CPT/ICD codes, modifiers, dates) that minimizes denials and accelerates payment.
• D. A claim that includes a detailed narrative of patient lifestyle.

Answer: (C)

A clean claim is a claim submitted to a payer with all required information accurate and complete, coded correctly, and formatted according to payer rules so it can be processed without delays. This means the patient demographics (name, date of birth, insurance ID), payer information, and provider details (NPI, billing taxonomy if needed) are correct; the procedure and diagnosis codes match the services provided and, if needed, the appropriate modifiers are used; the dates of service and place of service are accurate; and any required units, charges, and supporting information are included. When these elements are correct and complete, the claim is likely to be adjudicated smoothly, reducing denials and speeding payment. Conversely, missing or incorrect demographics, mismatched codes, missing modifiers, wrong dates, or incomplete fields lead to denials or requests for clarification, slowing payment. Pre-authorization is about prior approval for services, not the cleanliness of the claim, and whether something is submitted electronically versus on paper isn’t what defines a clean claim. A detailed lifestyle narrative isn’t relevant to billing and can complicate the claim.