What is the function of a clearinghouse in medical billing?

• A. A storage facility for medical records
• B. A platform for posting patient reviews
• C. A system for scheduling appointments
• D. A middleman that transfers claims from providers to payers and performs error checking

Answer: (D)

In medical billing, a clearinghouse acts as an intermediary between the provider and the insurance payer. It receives electronic claims from the practice, runs pre-submission checks to catch missing information, invalid codes, or other errors, and formats the data into the payer’s required standard. After those edits, it routes the claims to the correct payer and returns status updates or error reports so any issues can be corrected and resubmitted. This process helps ensure claims are clean and transmitted efficiently, reducing denials and speeding reimbursement. Clearinghouses may also offer services like eligibility verification and remittance advice, but their primary role is transmission and error checking, not storing records, posting patient reviews, or scheduling appointments.