8 ways to fight back when a payer's algorithm denies your claim

The denial lands three hours after submission. The language mirrors the diagnosis codes rather than the chart, the medical necessity criterion is never named and nowhere on the letter is there a clinician who put their license behind it.

Three-quarters of physicians say denials have climbed over the past five years, and six in 10 told the American Medical Association's 2026 prior authorization survey they are worried AI is driving the increase. Prior authorization alone consumes 13 hours of physician and staff time a week, and two in five practices now employ someone who does nothing else.

The leverage is better than it was a year ago. Seven states passed laws in 2026 requiring a licensed clinician to make any adverse medical necessity determination, and payers are now posting their own prior authorization metrics publicly under the CMS interoperability rule, including how many denials get overturned on appeal. The practices that use it are the ones that treat an automated denial as a documentation problem rather than a dead end. Here are eight places to start.