PRC & ER diversion

What a nurse line does to your PRC budget.

Purchased/Referred Care is appropriated annually and it runs out. Every avoidable emergency department visit is money that will not be there for a referral later in the year. Here is the mechanism, and how to size it honestly.

Reviewed by Jayson Forrest Minagawa, RN, BSN, Clinical Director Updated 2026-08-06

Ask a tribal health director what keeps them up at night and Purchased/Referred Care will be on the short list. Not because the program is badly run, but because of a structural feature that is easy to state and hard to live with: the money runs out.

How PRC actually works

Purchased/Referred Care (PRC, and before 2014, Contract Health Services) is how the Indian Health Service pays for care that a patient needs but that the local IHS or tribal facility cannot provide. Specialty consults, surgery, imaging that isn't available on site, and emergency care at an outside hospital all run through it.

Four features of the program matter for this discussion:

The sentence that matters

When a program's PRC funds are committed for the year, the next referral does not simply cost more. It may not happen. Deferred services are a documented, recurring feature of the program, not an anomaly.

Where the emergency department fits

An emergency department visit at a non-IHS hospital is one of the more expensive single items PRC buys, and it is the item over which a program has the least control. Nobody schedules it. It arrives as a bill.

Some of those visits are exactly what an emergency department is for. Chest pain, stroke symptoms, major trauma, an infant with a high fever: those are correct decisions, and a nurse advice line should send them.

But a meaningful share of after-hours emergency department use nationally is for conditions that could have been managed in a primary care setting the following morning. In a system with a commercial payer, that is an efficiency problem. In a PRC system, it is a rationing problem: the money spent on an avoidable visit in March is not available for a referral in August.

Why the alternative is usually nothing

Here is the part that gets missed. Telling patients to use the emergency department appropriately assumes there is something else to do at eleven at night. For much of Indian Country there isn't.

A parent with a feverish child at 2 a.m. and no one to ask is not making a utilization decision. They are guessing. Some of them guess toward the emergency department when they did not need to, and some guess away from it when they did. Both errors are expensive; the second one is worse.

What a nurse advice line changes

It puts a clinician in the gap. A registered nurse assesses the caller against physician-authored protocols and reaches a defined disposition, home care, clinic in the morning, urgent care, or emergency department now. Three things follow from that:

  1. Avoidable visits get diverted. The caller who needed reassurance and a next-day appointment gets exactly that, and the PRC allocation is not touched.
  2. Necessary visits get accelerated. The caller who was going to wait until morning with symptoms that should not wait is told to go now. That one costs PRC money, and is the reason the service is clinically worth having, independent of the budget.
  3. The clinic starts the day informed. Encounter documentation comes back to the program, so the morning schedule reflects who called overnight.
How to model this honestly

Any vendor who hands you a guaranteed diversion percentage is guessing. The defensible way to size it is with your own numbers: your after-hours call volume, your PRC spend on outside emergency department visits, and a conservative assumption about what share of those visits were primary-care treatable. Run the arithmetic yourself and treat the result as a range, not a forecast.

The part that is not about money

It would be possible to write this entire piece as a budget argument, and the budget argument is real. But the reason to answer the phone at 2 a.m. is that somebody is on the other end of it.

For a population that has spent generations being told, in one way or another, to wait, a nurse who picks up on the first ring and already understands the household she is talking to is not a cost-containment measure. The PRC savings are a consequence of doing the right thing, which is a much better order for those two to come in.

Questions people ask

Does IHS pay for an emergency room visit?

Sometimes, and not automatically. If the visit is at a non-IHS facility, payment runs through Purchased/Referred Care, which has eligibility rules, notification deadlines, medical priority criteria, and a finite annual allocation. IHS is also generally the payer of last resort, so alternate resources must be pursued first. A patient who assumes the visit is covered may end up personally billed.

What is the notification deadline for a PRC emergency?

PRC programs require notification within a defined window after emergency care is received, and the window is short. Missing it is one of the more common reasons a claim is denied. The exact requirement is set in program regulation; check with your PRC office rather than relying on a general figure.

Is nurse triage a PRC-payable service?

That is the wrong frame. A nurse advice line is generally procured as a service contract by the facility or program, funded from operating budget rather than drawn from the PRC allocation. Its relationship to PRC is on the other side of the ledger: it exists to reduce what PRC has to pay for.

Sources

This is a general explainer, not program guidance. PRC eligibility, notification deadlines, and medical priority determinations are set by regulation and administered locally; work from your own PRC office and the current CFR.

Want to run the numbers for your program?

We are glad to walk through the arithmetic with your PRC and finance staff using your own call volume and referral data, without a sales pitch attached.