Single Case Agreement Negotiation in Addiction Treatment

A patient is sitting in admissions. Their commercial plan won’t cover your facility in-network, the clinical need is clear, the family wants treatment to start tomorrow, and the payer’s case manager just floated a single case agreement at a per diem that won’t cover your nursing line. Take it, walk away, or push back?

Single case agreements (SCAs) are one of the most leverageable — and most under-negotiated — pieces of out-of-network behavioral health billing. Most facilities accept the first number a payer floats. They shouldn’t.

The short version

Pursue an SCA when there’s a real network adequacy gap, a continuity-of-care argument, or a specialized clinical capability the in-network panel doesn’t offer.
The payer’s first offer is almost never their ceiling. Expect 15–40% movement on rate when you have leverage and documentation.
Rate is one variable. Authorization length, level-of-care step-downs, covered codes, and timely-filing windows are all negotiable in the same conversation.
Get every term in writing — rate, CPT and revenue codes, auth period, appeal rights — before the patient is admitted.

When is a single case agreement worth pursuing?

Not every out-of-network admission warrants an SCA. The cases that do share a few traits:

Network adequacy gaps

If the payer’s in-network options for residential SUD treatment are full, geographically unreasonable, or clinically inappropriate (no co-occurring capability, no MAT, no trauma-informed program), you have an adequacy argument. State parity laws and federal MHPAEA rules give it teeth. Document the gap before you call: which in-network facilities you contacted, wait times, distance from the patient’s home, clinical fit.

Continuity of care

The patient stepped down from a higher level of care at your facility, or has an established therapeutic relationship with a clinician on staff. Payers are obligated to consider continuity. This is one of the strongest arguments for an SCA at parity with in-network rates.

Specialized clinical capability

Your program offers something the in-network panel doesn’t — pregnant women’s residential, adolescent SUD, dual-diagnosis with active psychosis, complex withdrawal protocols. Name it specifically in the request.

If none of those apply and the patient simply prefers your facility, an SCA is unlikely and probably not worth chasing. Put that energy into a verified out-of-network benefits quote and a transparent patient financial conversation.

How do you negotiate a higher SCA rate?

Rate negotiation is the part most facilities skip. Here’s what actually moves the number:

Anchor with your billed charge

Don’t open with what you’ll accept. Open with your billed charge or your standard out-of-network rate. The payer will counter low — that’s fine. You’ve established the ceiling.

Reference comparable in-network rates

If you carry in-network contracts with other commercial payers, you know the going rate for residential, PHP, and IOP in your market. Cite a range. “Residential SUD is contracting between $X and $Y in this region” is a defensible anchor without disclosing a specific contract.

Bundle the asks

If the payer won’t move on per diem, push on length of stay. A modest rate at 21 days authorized upfront beats a higher rate with 7 days and a UR fight every week. Same conversation, different lever.

Frame the SCA as cost-avoidance

If the patient otherwise lands in an ED, an inpatient psych unit, or relapses into a medical detox admission within 60 days, that costs the payer more than your SCA. Make that math explicit.

Know when to decline

An SCA at 35% of billed charges with a 7-day cap and no appeal rights is not a deal — it’s a liability. Walking away is sometimes the right answer, especially if your census allows it. Payers track facilities that accept anything, and they price accordingly next time.

What terms matter besides the per diem?

The rate gets all the attention. These often matter more:

Authorization length. Negotiate the initial auth period — 14 or 21 days for residential is reasonable. Shorter auths mean more concurrent reviews and more denial risk.
Level-of-care continuum. Build step-down language into the SCA: residential to PHP to IOP under the same agreement. Otherwise you renegotiate at every transition.
Covered codes. Specify CPT and revenue codes — H0010, H0011, H0015, H0035, plus room and board revenue codes. If a code isn’t named, expect it to be denied.
Timely filing. Out-of-network SCAs sometimes carry 90-day filing windows. Push for 180 or 365.
Appeal rights. Confirm in writing that standard internal and external appeal rights apply to denied claims under the SCA. Some payers try to waive these in exchange for the agreement.

Who should be negotiating SCAs at your facility?

This is where most treatment centers lose money. The admissions coordinator who’s also running intake, insurance verification, and bed assignments is not the right person to negotiate a five-figure agreement under time pressure. Neither is the clinical director.

SCA negotiation sits at the intersection of billing, utilization review, and contracting. The person on the call needs to know your cost per day, your typical length of stay by level of care, what other payers in your market reimburse, and what authorization patterns the specific payer follows. That’s a billing-and-UR skill set, not an admissions one.

Behavioral health is a narrow specialty. Generalist RCM shops handle SCAs the same way they handle everything else — quickly, with a script. Global AHS works exclusively with addiction treatment and mental health facilities, which means the person picking up the phone has negotiated SCAs with the same case managers your payers will assign, on the same level-of-care codes, in the same week. That pattern recognition is what moves rates.

How do you protect the SCA after it’s signed?

Getting the agreement is half the work. Holding it together through the stay is the other half.

Send the signed SCA to your billing team and your UR team the same day. Both need it.
Bill exactly to the codes and rates specified. SCAs pay outside your normal fee schedule — claims need to be flagged so they don’t autoadjudicate at the wrong rate.
Track the auth end date. Concurrent review for SCA patients is the same as any other commercial case — miss it and the agreement doesn’t save you.
If a claim is denied or underpaid against the SCA terms, appeal with the agreement attached. These appeals win more often than standard ones because the contract is explicit.

Next step

If you’re accepting first-offer SCAs or losing money on signed agreements that don’t get billed correctly, a free 6-month billing audit will show you exactly where the gaps are before you commit to anything.

Frequently Asked Questions

What is a single case agreement in addiction treatment?

A single case agreement (SCA) is a one-time contract between an out-of-network treatment facility and a health plan that establishes payment terms for a specific patient’s care. It’s used when an in-network option isn’t available or clinically appropriate, and it typically covers a defined level of care, length of stay, and reimbursement rate.

How long does it take to negotiate an SCA?

Most SCAs are negotiated within 24 to 72 hours when the clinical need is documented and the request is routed correctly. Complex cases — high-cost residential stays, multi-level-of-care agreements, or payers with multiple internal approvals — can take a week or longer. Starting the conversation before admission is critical.

What rate should I expect on a single case agreement?

Rates vary widely by market, payer, and level of care. As a general observation, SCAs for residential SUD treatment tend to land somewhere between Medicaid rates and billed charges, with significant room to negotiate based on network adequacy arguments and clinical specialization. The first offer is rarely the best one.

Can I negotiate an SCA after the patient is already admitted?

Yes, but you lose leverage. Once the patient is in your facility and stable, the payer knows you’re motivated to get paid for care already delivered. Whenever possible, negotiate and sign before admission, or at minimum within the first 24 hours.

Do single case agreements include appeal rights if a claim is denied?

They should, but not all SCAs do by default. Confirm in writing that standard internal and external appeal rights apply to claims billed under the agreement. If a payer pushes back on this, that’s a signal the rest of the terms deserve closer scrutiny.

Not sure where your billing is leaking?

Global AHS will audit your last 6 months of billing for free. We pull denials, aged AR, timely filing misses, undercoded services, and underpaid claims, then hand you a written report showing the exact gaps and what they’re costing you. No commitment, no sales pressure — just your numbers, laid bare.

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