Authorization Unit Management: Tracking Approved vs. Delivered Units Before They Become Denials

There is a denial that stings more than the others, because it is the one you cannot appeal your way out of. The service was medically necessary. The note was clean. The code was right. The claim still came back at $0.00, because you delivered more units than the authorization covered, or you delivered them after the authorization had expired. The care happened. The money will not.

Every other kind of denial has a path back: fix the code, attach the documentation, correct the modifier, resubmit. Delivering past your authorized units is different. There is no clinical error to correct, because there was no clinical error. There is only a number you ran past without noticing, and by the time the remittance tells you, the units are already spent.

This is one of the quietest ways money leaks out of a Maryland behavioral health program, and it is almost entirely preventable. Not with better clinicians or better notes, but with one operational habit: reconciling authorized units against delivered units continuously, not at the point of billing.

Why this happens to careful practices

Programs that get burned by unit overruns are usually not sloppy. They get burned because authorized units and delivered units live in two different places, maintained by two different people, and no one reconciles them until a claim is built.

The authorization lives with whoever manages intake and utilization: a number of units, a date span, a service type, tied to a specific client and payer. The delivered services live with the clinicians and the schedule, with sessions happening day to day, documented as they go. On paper these should line up. In practice, the authorization is a static number sitting in a folder or a field, while delivery is a moving total that grows every week. Nobody is watching the gap between them close.

So the group keeps meeting. The PRP client keeps attending. The individual therapy keeps getting scheduled. And somewhere around week ten, the running total of delivered units quietly passes the authorized ceiling, or the authorization's end date slides by while services continue under the assumption that "the auth is still good." The overage doesn't announce itself. It shows up weeks later as a batch of denials on a remittance, long after the sessions are done and the payroll for them is paid.

What Maryland payers actually expect

In the Public Behavioral Health System, Carelon (Maryland's ASO) and the commercial MCOs authorize services in defined quantities over defined periods. The rules underneath the denials are consistent, even when the unit math differs by program:

• Delivered units may not exceed authorized units. An authorization for a set number of H2017, H2019, H0004, or T1017 units is a ceiling, not a suggestion. Units delivered above it are the provider's financial risk.
• Services must fall inside the authorization's date span. An authorization that ran out on the 30th does not cover the session on the 31st, even if plenty of units remain.
• Concurrent review is on the provider's clock, not the payer's. Reauthorization for continued services has to be requested and approved before the current authorization is exhausted or expires. Request it late and you create a coverage gap, and services delivered in the gap are the ones that get denied.

None of this is hidden. It is the ordinary structure of managed care. The problem is never that providers don't know the rules; it's that the rules are enforced against a number almost no one is tracking in real time.

The reconciliation habit that prevents it

The fix is not a new hire or a new spreadsheet nobody updates. It is a small, repeatable discipline built into the week:

Record the authorization as a live balance, not a filed document. When an authorization comes in, capture the authorized units, the service type, and the start and end dates somewhere your team actually looks, and treat it as an opening balance to be drawn down, not a fact to be stored.

Decrement as services are delivered. Every delivered, documented unit should reduce the remaining balance. Whether that happens automatically in your EMR or manually in a tracker, the number that matters is units remaining, and it should be visible to the people scheduling and delivering care, not buried with billing.

Alert before the ceiling, not at it. Set a threshold, 80 percent of units consumed, or 30 days before the end date, whichever comes first, that triggers a reauthorization request while there is still runway. The goal is to never deliver the unit that crosses the line.

Re-authorize early, and document the request. Submit concurrent review before the current authorization lapses, and keep the request and approval in the chart. If there is ever a dispute about a gap, the timestamp on your reauthorization request is the difference between "we were late" and "the payer was."

Reconcile weekly, not at billing. Once a week, compare delivered units against authorized units for every active authorization. A ten-minute review that catches a client approaching their ceiling is worth more than a perfect denial-appeal process, because the denial you prevent is the one you'd never have recovered anyway.

The documentation trail auditors want

Unit management is not only a revenue problem; it is a compliance one. When a Carelon reviewer or an OHCQ surveyor pulls a chart, they expect the authorization on file to match the services billed against it: right service type, inside the date span, within the approved quantity. A program that can show a clean line from authorization to delivered units to claims is demonstrating exactly the operational control the payer is looking for. A program whose delivered units routinely exceed or outrun its authorizations is showing the opposite, and that pattern invites the kind of scrutiny that reaches well beyond a single denied claim.

Keeping the authorization, the running unit balance, and the reauthorization requests together in the client's record isn't busywork. It's the evidence that the services you billed were the services you were approved to provide.

The point

The denials you can appeal will always get most of your billing team's attention, because there is a satisfying loop of fix, resubmit, recover. Unit overruns get less attention precisely because there is no loop; the money is simply gone. That's exactly why they deserve more of your process, not less. Watching the gap between authorized and delivered units close, every week, before the ceiling, is one of the highest-return habits a Maryland behavioral health program can build, because every dollar it protects is a dollar you were never going to get back any other way.