Charge lag calculator
Calculate your average charge lag — the days between the date of service and claim submission — from your own claim figures.
Updated
Enter your own figures to calculate your average charge lag — how long, on average, a service takes to become a submitted claim.
Add up the days elapsed for every claim in the period. A service performed on the 1st and submitted on the 4th contributes 3 days.
The count of claims those days were measured across, over the same period.
A goal you set — shown as a marker on the gauge. Not a benchmark and not required.
Enter your figures to see the result and a breakdown.
How it’s calculated
Total days from date of service to submission, across all claims ÷ Number of claims submitted
Measure to submission, not to payment — this metric is about your speed, not the payer's. Use a settled period: claims from the last few days have not had a chance to be submitted yet, and including them drags the average down for a reason that is not real.
What this assumes
- Both figures must cover the same claims. The total days and the claim count have to be measured across the same population, or the average is of two different things.
- Use a settled period. Claims from the last few days have not had a chance to be submitted yet, and including them pulls the average down for a reason that is not real.
- This measures your speed to submission, not the payer's speed to pay. It stops the moment the claim is sent.
- The result is the arithmetic on the numbers you entered. It is not compared to a benchmark: an achievable lag depends on specialty, documentation workflow, and how coding is staffed.
How to read the result
A lower charge lag generally means claims reach the payer sooner, leaving more of the filing window in reserve and shortening the whole cycle behind it. There is no universal target: the achievable lag depends on the specialty, the documentation workflow, and how coding is staffed — a surgical practice and a primary care practice are not comparable on this. Read it as a trend, and read it beside your timely-filing denials rather than against an external figure.
Read the full charge lag definition