Claim scrubbing

Claim scrubbing is the automated check between charge entry and submission. The scrubber, which may live in the practice management system, at the clearinghouse or in both, reads each claim and tests it against a library of edits. Some edits are structural: a required field is blank, a date is out of order, a code has been retired. Some are coding logic: a CPT and ICD-10 pair the payer will not accept, an NCCI pair that needs a modifier, a unit count over the MUE. Some are payer-specific: this plan wants the authorization number in a particular loop, that one requires a taxonomy code, a Medicaid plan needs the rendering provider’s state ID. Anything flagged comes back to a work queue before the claim leaves.

Scrubbing matters because a rejection costs days and a denial costs weeks. The payer’s own edits apply the same tests but report the result after a round trip, and sometimes only in a remittance that arrives with the next payment cycle. Catching the error in-house turns a rework loop into a quick fix and is the main lever on first-pass resolution rate.

The mistake is treating the scrubber as the whole quality step. A scrubber only knows the rules someone loaded into it, and payer rules change. It cannot tell that the patient’s coverage ended last month, that the authorization covers a different code, or that the documentation does not support the level billed. Keep the edit library current with each payer’s denial patterns, and treat a claim that passes scrubbing as formatted, not verified.