A/R Aging
A breakdown of outstanding receivables by how long they've been unpaid (e.g., 0–30, 31–60, 61–90, 90+ days).
The older a claim gets, the less likely it is to be paid - and it can cross timely-filing or appeal windows. A/R aging shows where follow-up needs to focus.
Aged, small-balance A/R is a common place revenue quietly leaks.