Enter a few recent bills — what you billed and what the check paid. The calculator shows each gap, your short-pay rate, and the annualized cost of letting them slide.
Estimates only — based on the sample you enter, not a guarantee of recoverable amounts. Med Claims Pro flags these gaps automatically the moment each check is recorded.
Unit-math errors in box 24G (time-based codes print ×10; mileage prints as-is), payers applying outdated fee schedules after a rate change, overflow B/C forms paid as one form, and lines dropped in bill review.
Keep the original form as evidence, compute the exact balance, and follow your state's process — in Ohio, a rebill/adjustment request to the MCO; other states have formal review steps with deadlines. See the state rules hub.