What's Your Documentation Error Rate? If You Can't Answer, That's the Problem.

I want to ask the leaders of risk-bearing organizations one question, and I want you to sit with how confidently you can answer it: What is your documentation error rate?

Most can’t answer. And in 2026, that gap is the single most expensive thing about your operation.

1. The number CMS already has in mind.

When CMS completed its earlier RADV audits for payment years 2011 through 2013, it found overpayment rates between 5% and 8%. Now place that against today’s environment — every plan audited annually, and a repayment methodology still being fought over in the courts.

If 5 to 8 percent of your risk-adjusted revenue turned out to be unsupported, would you know? Could you prove the rest held up?

2. Why not knowing is the real exposure.

An unknown error rate isn’t a neutral blank. It’s a liability you can’t size, can’t budget for, and can’t defend. You can’t fix what you haven’t measured, and you can’t reassure a board or a CFO with “we think we’re fine.”

The plans that get hurt aren’t necessarily the ones with the most errors. They’re the ones who were blindsided because they never looked.

3. Audit yourself the way CMS will.

The fix isn’t complicated, and it isn’t waiting. You find your number the same way an auditor would: pull a representative sample of your own charts, test every diagnosis against the documentation, and measure two things at once —

How many submitted diagnoses aren’t supported (your downside exposure)
How many legitimate, documented conditions you failed to capture (revenue you’re leaving behind)

Done right, a self-audit doesn’t just quantify risk. It usually finds money, too.

4. The advantage of going first.

Finding your error rate on your own terms is entirely different from discovering it in a record request. On your terms it’s private, quantified, and fixable — with time to remediate documentation and educate providers. In an audit, it’s a number someone else calculated, with money attached and a clock running.

Final Thoughts

“We think our documentation is solid” is not a number. And in an environment where every plan is audited every year, a feeling is not a strategy.

The organizations that will be calm during the audit surge are the ones that already know their number — because they went and found it.

If you’d want a clear, quantified read on where your organization actually stands, that’s precisely what a focused documentation audit delivers.

1. The number CMS already has in mind.

2. Why not knowing is the real exposure.

3. Audit yourself the way CMS will.

4. The advantage of going first.

Final Thoughts

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