What does the calculator estimate?
It estimates the last covered SNF day, when day 21 coinsurance begins, and how many Medicare-covered days remain in the current benefit period from the dates you enter.
What the calculator helps estimate
- Estimated Medicare day 21 copay start date
- Estimated day 100 last covered date
- Total SNF days used in the current benefit period
- Remaining covered days based on entered stay ranges
Frequently Asked Questions
Can it track multiple stays in one benefit period?
Yes. Benefit-period mode is built for that use case and totals entered stays to estimate remaining coverage.
Does it replace payer verification?
No. It is an informational estimator and should be paired with current payer verification, documentation, and Medicare policy review.
How to use the calculator
Use single-stay mode when you already know the Medicare start date and want the last covered day quickly. Use benefit-period mode when you need to total multiple stay ranges and understand how prior covered days affect the remaining balance.
Official references
Medicare SNF coverage overview: medicare.gov/coverage/skilled-nursing-facility-care
Medicare publication on SNF care: Medicare Coverage of Skilled Nursing Facility Care (PDF)