Claim Scrubbing
Claim scrubbing is the automated review of claims against payer, coding, and format rules before submission, catching errors while they are still free to fix. Effective scrubbing is how practices sustain the 95%+ clean-claim benchmark instead of paying roughly $25 per claim to rework denials.
- Purpose
- Catch claim errors before submission
- Where it runs
- PM system, clearinghouse, or both
- Payoff
- Supports 95%+ clean-claim rate
- Alternative cost
- ~$25 rework per denied claim
What does claim scrubbing actually do?
A scrubber runs every claim through hundreds of rules before it leaves your system: is the subscriber ID formatted the way this payer expects, does the diagnosis support the CPT, are modifiers used legally, is the rendering NPI enrolled with this payer, does POS match the service. Anything that fails gets kicked back to a work queue while the fix costs minutes instead of weeks.
The economics are simple. Fixing an error pre-submission costs a biller a minute or two. The same error caught as a denial costs roughly $25 in rework labor and adds 30–45 days to payment — and errors like missing data surface as CO-16 denials that many teams never work at all.
Where does scrubbing happen?
- PM / billing system edits — your first line. Demographics, charge entry rules, local edits you build from your own denial history.
- Clearinghouse edits — HIPAA 837 format validation plus a large shared rule library, including payer-specific front-end requirements.
- Payer front-end edits — the payer's own gate. Claims rejected here never enter adjudication, which means no denial letter and no appeal rights; they simply vanish unless someone works the rejection report.
What do scrubbers miss?
Scrubbers validate the claim, not the coverage. They will not catch a terminated policy, a plan that changed on the first of the month, an exhausted benefit, or a coordination of benefits problem where another payer is primary. They also cannot verify that documentation supports the code — a scrubbed claim can still be flagged for medical necessity.
Realistic example: a claim for 99214 with M54.50 passes every edit and transmits clean, then denies because the patient's employer switched plans on June 1 and the visit was June 9. The scrubber did its job. Eligibility verification did not run.
How do you keep scrubber edits current?
Payers change edits quarterly and NCCI updates land on the same cadence, so a scrubber tuned once and left alone decays quietly. Once a month, pull your top 10 rejection and denial reasons, trace each to a rule you could have applied pre-submission, and build that edit. Your own denial data is the best rule library you will ever get, and it is free.
Frequently asked questions
Format validity (HIPAA 837 structure), required fields, valid code combinations (CPT, ICD-10, modifiers), NCCI edits, patient and provider identifiers, and payer-specific rules like taxonomy requirements or attachment triggers. Good scrubbers also flag missing authorization numbers on CPTs known to require prior auth.
Clearinghouse edits are one layer of scrubbing. Most claims pass through internal PM-system edits first, then clearinghouse edits, then the payer front end. Relying on the clearinghouse alone means errors are caught later, batched, and slower to correct.
No. Scrubbing catches technical and coding errors, not coverage problems. A perfectly scrubbed claim still denies if eligibility lapsed, benefits were exhausted, or the payer disputes medical necessity. Scrubbing raises clean-claim rate; it cannot by itself fix first-pass resolution.
Sources & further reading
Reviewed by the ImmediCare Solutions RCM team
Certified billers and coders handling claims across 50+ specialties nationwide. This entry is reviewed against current payer policy and CMS rules. Last review: Jul 5, 2026.
Stop losing revenue to problems like this.
A free billing audit shows exactly where your practice is leaking money — no cost, no commitment.
