Module 07 · the two clocksExpiring authorizations and units remaining.
Every active authorization carries two independent countdowns. The date clock is visible, sits in the record, and is easy to report on. The unit clock is invisible unless someone builds it, drains at the pace of the delivered schedule, and is the one that actually runs out first in recurring service lines. A command center displays both on every active authorization and triggers on whichever will exhaust sooner.
AUTH #A-3982ACT NOW
ABA adaptive behavior treatment97153 · 480 units · 6 month span
UNITS USED 456 / 480DATE LEFT 5 days
Both clocks are near zero. Reauthorization packet submitted with the current assessment attached. RBT session schedule capped at remaining units until the new approval posts.
AUTH #A-4471TRIGGERED
ABA adaptive behavior treatment97153 · 384 units · 6 month span
UNITS USED 317 / 384DATE LEFT 41 days
The unit clock fired at 80 percent while the date clock still shows six weeks. This is the ordinary case in ABA and the one a date based tracker misses entirely. Packet queued, assessment refresh requested from the BCBA.
AUTH #A-5120HEALTHY
ABA adaptive behavior treatment97153 · 520 units · 6 month span
UNITS USED 229 / 520DATE LEFT 64 days
Consumption is tracking the authorized pace. RBT session logs are posting on schedule and the projected exhaustion date sits inside the authorization span. No action, weekly review only.
Exhibit 5 · Illustrative countdown exhibit. Figures are anonymized and representative of the console described on our prior authorization automation capability page. No client information is shown.
The ABA 97153 case
Applied behavior analysis makes the two clock problem unavoidable, which is why it is the clearest teaching case. Code 97153, adaptive behavior treatment by protocol, is delivered by Registered Behavior Technicians under the direction of a Board Certified Behavior Analyst. It is authorized as a pool of fifteen minute units across a date span, often several hundred units across three or six months. The BCBA writes the treatment plan and supervises. The RBTs deliver the direct hours that consume the pool.
Consumption is therefore driven by RBT staffing and family attendance, not by the calendar. A client scheduled for twenty hours a week burns eighty units a week. If the plan was authorized assuming sixteen hours a week, the pool that was supposed to last six months exhausts in under five. Nothing in a date based tracker fires. The authorization still shows as active because its end date has not arrived. Sessions continue, the RBTs deliver real care, and the claims for every session past unit exhaustion come back unpaid.
The inverse failure is just as expensive and much quieter. If the RBT team is short staffed and the client receives twelve hours a week against a plan authorized at sixteen, the pool never exhausts. The authorization expires on its date with a hundred and twenty approved units unused. Nothing denies, because nothing was billed. That is approved, reimbursable, clinically indicated care that simply never happened, and it will not appear on any denial report. Our companion paper, The Authorization Ledger, treats that utilization gap as the master metric of ABA revenue.
The control is a projection rather than a threshold. Take units remaining, divide by the trailing four week consumption rate, and you get a projected exhaustion date. Compare it to the authorization end date. If projected exhaustion lands before the end date, the reauthorization packet starts now and the BCBA is told how many weeks of runway remain. If projected exhaustion lands after the end date, the schedule is under the authorized pace and the BCBA is told how many additional hours per week would consume the approval. Both conversations are actionable. Neither is possible from a status field.
Client engagement · multi state ABA provider
Two clocks, one meter, zero unbilled sessions.
A multi site ABA provider was managing 97153 authorizations from a spreadsheet keyed on expiry date. Reauthorization work started thirty days before expiry, which felt disciplined and was in fact arbitrary. Roughly one authorization in five was exhausting its unit pool weeks before its end date, and the RBT teams kept delivering sessions against an authorization that looked active on the calendar and had no units left in it.
ASP-RCM moved the trigger from the date to the meter. Every active authorization got a units consumed percentage, a trailing consumption rate, and a projected exhaustion date. Packets queue automatically at eighty percent of units consumed and again at ninety five percent, with the current assessment pulled and routed to the supervising BCBA for review. The date remained as a backstop trigger at thirty days, but it stopped being the primary signal.
80%Units trigger, first packet
95%Hard trigger, escalation
0Sessions delivered without active auth
Client, payers, and volumes anonymized. Engagement describes real ASP-RCM work in the ABA service line, staffed by BCBAs and RBTs.
THE TRIGGER RULE
Start the reauthorization packet at eighty percent of units consumed or thirty days before expiry, whichever arrives first. In recurring service lines the units trigger fires first far more often than the date trigger does.