What is a denial rate?
The denial rate is the share of claims, or dollars, that payers deny on first processing. It's one of the clearest measures of how much revenue is at risk.
Initial denial rate, March 2026
| Measure | Value |
|---|---|
| Claims processed by payers | 5,000 |
| Claims with at least one denied line | 400 |
| Denial rate by count | 8.0% |
| Dollars denied / dollars billed | $92,000 / $1,150,000 = 8.0% |
| Top reasons | CO-197 (31%), CO-16 (22%), CO-50 (14%) |
- Figures are illustrative. The reasons matter more than the rate: three codes often explain most of the denials.
The initial denial rate counts claims denied the first time a payer processes them, whether or not they’re later recovered. It can be measured by claim count or by dollars, and both are worth watching.
Why the reasons matter more
A rate alone doesn’t say what to fix. Broken down by reason code, payer, provider and location, it usually shows that a few causes drive most denials: missing authorizations, missing information, medical necessity. Each of those has a fix upstream, at intake or in claim scrubbing.
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