Priya, the mother of a 16-year-old in Newton, Massachusetts, spent eleven days on the phone with her daughter’s insurance carrier in February 2026 trying to find an in-network adolescent eating disorder residential program with an open bed. The carrier’s directory listed seven facilities. Three weren’t accepting new admissions. Two had eight-week waitlists. One had closed in November and hadn’t been removed from the directory. The seventh was a six-hour drive away and didn’t take adolescents under 18 without a parent in residence on-site for the full admission. Priya’s daughter, meanwhile, had lost twenty-two pounds in seven weeks and was being seen daily at her pediatrician’s office for vital sign monitoring. On day eleven, the daughter’s outpatient therapist mentioned a phrase Priya hadn’t heard before: single case agreement. Within four days, the carrier had executed an SCA with a specialty residential program in Connecticut that wasn’t in the network but agreed to accept the in-network rate. The daughter was admitted that Friday. Priya later told the therapist that the SCA had probably saved her child’s life.
A single case agreement insurance arrangement, often abbreviated SCA, is a one-off contract between an insurance carrier and an out-of-network provider for one specific patient. The SCA defines the rate the insurer will pay, the duration of treatment authorized, the prior authorization terms, and the patient’s cost-sharing obligation. SCAs exist because insurance networks are imperfect. When a member needs specialty care that the in-network panel can’t realistically deliver, the carrier has both a regulatory and a clinical incentive to manufacture a temporary network relationship to get the patient appropriate care.
What a single case agreement actually is
An SCA is a written agreement between an out-of-network provider and an insurance plan covering one specific member. Unlike a network contract, it covers only the named patient for the agreed scope of services. The agreement typically includes the patient’s diagnosis, the services authorized, the rate per service or day, the duration, and concurrent review requirements.
SCAs serve a specific purpose: maintaining access to specialty care unavailable through the in-network panel. Mental health cases account for a disproportionate share of SCAs because behavioral networks are thin and certain specialties (eating disorder treatment, OCD with ERP, complex PTSD residential) have very few qualified providers nationally. Read our analysis of filing a network inadequacy complaint.
When SCAs make clinical and economic sense
SCAs work best when three conditions align. First, the patient needs specialty care with documented clinical justification (eating disorder residential, OCD ERP, complex PTSD, adolescent dual-diagnosis residential). Second, the in-network panel cannot deliver that care due to gaps or capacity limits. Third, an out-of-network provider is willing to accept SCA terms close to the in-network rate.
Eating disorder residential is the most common SCA scenario because the field is dominated by a few specialty programs (Renfrew, ERC, Monte Nido, Center for Discovery) that aren’t in-network with every carrier. OCD residential with ERP is similar, with McLean, Rogers, and OCD Institute holding most specialty capacity. Adolescent residential for severe self-harm often requires SCAs.
The negotiation process step by step
SCA negotiations typically follow a recognizable pattern. The provider’s intake or admissions team identifies that the prospective patient has insurance with which the program isn’t in-network. Admissions then contacts the carrier’s behavioral health utilization management or provider relations department to initiate an SCA request. The carrier reviews network adequacy in the patient’s region, the clinical justification for the requested level of care, and the program’s credentials.
If the carrier agrees in principle, rate negotiation begins. Carriers typically offer Medicare allowed amounts as a starting point. Programs counter with their own rate cards. The negotiated rate often lands at 75% to 100% of the program’s standard rate. Once rate is agreed, terms are documented and prior authorization issued. Concurrent review (every 7 to 14 days) applies to longer admissions.
Who initiates an SCA: providers, patients, advocates
Providers usually initiate SCAs because they have the relationships with carriers and understand the documentation required. Specialty residential programs typically have dedicated SCA coordinators. Outpatient therapists with specialty practices (eating disorders, OCD, complex trauma) sometimes initiate SCAs for individual patients but more commonly direct families to programs that handle SCAs as a routine matter.
Patients can initiate SCAs by contacting member services and asking specifically for an SCA review based on network inadequacy. Patient-initiated requests are harder because patients lack clinical documentation, but they’re not impossible. Patient advocates and care navigators (sometimes offered through employer benefits) can help.
Independent SCA negotiation services like Tarsus Behavioral Health and similar firms negotiate SCAs on behalf of providers and patients for a percentage fee. These are most useful for complex cases. Our piece on suing insurance over coverage denials covers the legal escalation when SCAs are wrongly denied.
What an SCA covers and what it doesn’t
An SCA defines the agreed services, rate, and duration. Common elements include the per diem rate (for residential or PHP), the per session rate (for outpatient), the authorized length of stay or session count, the requirement for concurrent review, the cost-sharing terms (deductible, coinsurance, out-of-pocket maximum), and any termination provisions if the patient is discharged early or the level of care changes.
SCAs do not cover services beyond what’s authorized. If a patient steps down from residential to PHP, a new SCA or extension is needed. If the patient changes programs mid-course, the original SCA may not transfer. Keep a copy of SCA documentation and understand what’s covered before treatment begins.
Denial appeals and SCAs
Carriers deny SCA requests for several reasons: the in-network panel is deemed adequate, the requested level of care is not medically necessary, the requesting provider’s credentials don’t meet the carrier’s standards, or the rate negotiation breaks down. Each denial reason has its own appeal pathway. Network adequacy denials are appealed by documenting the specific provider search showing no in-network options within reasonable distance and capacity.
Medical necessity denials require clinical documentation. Parity rules require that behavioral health medical necessity criteria not be more restrictive than medical-side criteria. If a denial applies tighter criteria, that’s a parity issue subject to additional appeal rights and complaint to the Department of Labor or state insurance commissioner.
Leveraging network adequacy law
Most states require insurance plans to maintain adequate provider networks, with specific time and distance standards for various specialties. Behavioral health is often called out separately because of the documented gaps. When a plan can’t deliver in-network access within the required standards, the regulatory remedy is typically a network adequacy complaint to the state insurance commissioner or, for self-funded plans, to the U.S. Department of Labor.
The threat of a network adequacy complaint often produces an SCA without the complaint being filed. Carriers prefer to issue SCAs quietly rather than face regulatory scrutiny. Keep records of every in-network provider you contacted, the dates, and the responses. Read our coverage of going out-of-network without a PPO for parallel strategy.
Documentation requirements that strengthen an SCA request
SCA requests succeed or fail largely based on documentation. The strongest packages include a clinical letter from the referring provider documenting medical necessity, the diagnosis with relevant DSM-5-TR criteria met, prior treatment history, evidence that lower levels of care have been tried or are clinically inadequate, and the specific clinical features requiring specialty care. The package also typically includes a network adequacy showing: a list of in-network providers contacted, the dates of contact, the responses received, and the geographic and capacity gaps documented.
For adolescents, additional documentation includes school records and pediatrician notes. Eating disorder cases benefit from BMI tracking, vital signs, and lab results. OCD cases need Y-BOCS scores and prior medication trials. Substance use needs ASAM criteria documentation. The more specific the documentation, the harder it is for the carrier to deny.
Patient cost-sharing under an SCA
A well-structured SCA typically applies in-network cost-sharing to the patient’s responsibility. The deductible, coinsurance, and out-of-pocket maximum are calculated as if the provider were in-network. This is one of the major financial advantages of SCAs over standard out-of-network benefits, which typically have higher deductibles and out-of-pocket maximums and lower allowable amounts.
Some carriers try to apply out-of-network cost-sharing even when an SCA is in place. Specifically ask whether the SCA terms include in-network cost-sharing. If not, the math may still favor accepting the SCA, but you should know the financial picture before consenting to admission.
SCAs for outpatient specialty care
SCAs aren’t limited to inpatient or residential settings. Outpatient SCAs work for individual therapists who practice highly specialized modalities (advanced EMDR, IFS-informed trauma work, somatic experiencing, complex DID treatment, gender-affirming mental health care for adolescents) when no in-network provider in the area offers comparable specialty. Outpatient SCAs are smaller-dollar than residential SCAs but still meaningful when sustained over months of weekly sessions.
Outpatient SCA negotiation tends to be quicker because dollar stakes are lower. The specific clinical justification still matters: why this provider, why this modality, why no in-network option works. Generic preferences won’t carry weight. Specific clinical reasoning will.
Frequently asked questions
How long does it take to negotiate a single case agreement?
SCAs typically take three to fourteen business days from initial request to executed agreement. Urgent clinical situations (acute eating disorder needing residential, suicidal adolescent needing higher level of care) can sometimes be expedited to 24 to 72 hours. Complex specialty negotiations or rate disputes can extend to three or four weeks. The provider’s admissions team usually drives the timeline.
Can I request an SCA for routine outpatient therapy?
Yes, but the case is harder because routine therapy is generally available in-network. SCAs for outpatient therapy work best when the requested provider offers a specialty modality that no in-network provider in the area provides, or when documented continuity of care argues for maintaining the current therapist (such as a patient who has been in successful trauma treatment with an out-of-network EMDR specialist).
What if my carrier denies the SCA request?
Appeal the denial in writing. The appeal should include the documentation that supported the original request plus a response to the specific denial reason. If network adequacy is the issue, file a network adequacy complaint with your state insurance commissioner or the U.S. Department of Labor for self-funded plans. If medical necessity is the issue, request the carrier’s specific medical necessity criteria and respond point by point.
Does an SCA cover unlimited treatment or a specific length?
SCAs typically authorize a defined length of stay or session count with concurrent review for extensions. Initial residential SCAs commonly authorize 14 to 30 days with continuation requests required for longer stays. Outpatient SCAs may authorize 12 to 24 sessions with re-authorization required after that. Concurrent review during the authorized period determines whether continued stay or extension is approved.
Will my deductible apply under an SCA?
Most SCAs apply the in-network deductible and cost-sharing. Confirm this in writing before consenting to treatment. Some SCAs use out-of-network cost-sharing despite the negotiated rate, in which case your effective out-of-pocket exposure can still be high. Understanding the cost-sharing structure before admission prevents surprise bills later.
The bottom line
A single case agreement insurance arrangement is one of the most useful tools available for getting specialty mental health and substance use treatment when in-network options are inadequate. SCAs work because carriers recognize that network gaps in behavioral health are real, regulatory pressure for network adequacy is real, and clinically appropriate treatment is in everyone’s interest. Patients and families facing specialty care decisions should ask specifically about SCA possibilities early in the admissions process. Document your in-network search, request clinical letters from referring providers, and don’t accept the first denial as the final answer. The right specialty program plus a successful SCA can mean the difference between adequate care and the wrong care.
If you need help right now
If you or someone you love is in crisis, call or text 988 to reach the Suicide and Crisis Lifeline. For specialty referrals and admissions support, contact the National Eating Disorders Association, the International OCD Foundation, or your state’s Department of Mental Health. For regulatory complaints about network adequacy or parity, visit the U.S. Department of Labor or review accreditation standards at NCQA.org.
This article is for informational purposes only and is not insurance, legal, or medical advice. Single case agreement processes vary by carrier, plan type, state, and clinical situation. Always work with your provider’s admissions team, a qualified patient advocate, or a healthcare attorney for advice specific to your situation.