What is clean claim in medical billing?

Claims and submission

What is Clean Claim?

Also called: clean claim rate · first pass rate

A clean claim is a claim that passes payer adjudication and is paid on first submission, without rejection, denial or a request for additional information. Clean claim rate — the percentage of claims meeting that standard — is the most direct measure of whether a billing operation is working.

The distinction that trips people up is rejection versus denial. A rejected claim never entered adjudication; it failed a format or eligibility check at the clearinghouse and can be corrected and resubmitted with no appeal rights. A denied claim was adjudicated and refused, and must be appealed. Only claims that clear both count as clean.

Be skeptical of published clean claim benchmarks. HFMA defines the metric through its MAP Keys but does not publish public target values, so the widely quoted "95% HFMA benchmark" is not something HFMA actually says. What matters more than any industry number is your own trend line and whether the failures cluster around a fixable cause.

Example

A practice submitting 1,000 claims a month with 60 rejections and 80 denials has a clean claim rate of 86% — and roughly 140 claims a month of avoidable rework.

Where Vizora handles this

Primary sources

Where "Clean Claim" is defined by the bodies that set the rules, rather than by us.

CMS-1500 claim form standards (opens in a new tab)
National Uniform Claim Committee — Maintainer of the CMS-1500 professional claim form and its data element definitions, plus the provider taxonomy code set.
Medicare Claims Processing Manual (opens in a new tab)
Centers for Medicare & Medicaid Services — The operative manual for how Medicare claims must be coded, submitted, adjusted and appealed. When a payer policy and a vendor's advice disagree, this settles it.
CAQH Index: cost of administrative transactions (opens in a new tab)
CAQH — Per-transaction cost of eligibility checks, claim status inquiries and prior authorization, manual versus electronic. The best public evidence for automating front-end work.

Last reviewed August 20, 2026

Related terms

Denial Rate

Denial rate is the percentage of submitted claims a payer denies, usually measured on first submission. MGMA data puts single-specialty physician practices at roughly 8%; Kodiak Solutions reports 11.81% for hospitals and health systems in 2024. Above 10% is where practices generally start losing material revenue.

Claim Scrubbing

Claim scrubbing is the automated review of a claim before submission, checking it against payer rules, code edits and formatting requirements to catch errors that would cause a rejection or denial. It runs after coding and before transmission, and it is the cheapest possible point of correction.

Clearinghouse

A clearinghouse is an intermediary that receives claims from providers, validates and reformats them into each payer's required electronic standard, and routes them onward. It also returns acknowledgements, rejections and electronic remittance advice, acting as the single connection point to hundreds of payers.

Rejection

A rejection is a claim stopped before adjudication — by the clearinghouse or the payer's intake system — for a format, data or eligibility error. Because it never entered adjudication, it carries no appeal rights and does not appear in payer claim status. It must be corrected and resubmitted.

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