Prior authorization (also called pre-authorization, precertification, or pre-approval) is a health plan cost-management process that requires healthcare providers to obtain approval from a patient’s insurance company before delivering specific medical services, prescribing certain medications, or performing surgical procedures. It acts as a gatekeeping step to confirm that the planned care is medically necessary, falls within the plan’s coverage guidelines, and is the most appropriate or cost-effective option for the patient’s condition.
In essence, prior authorization is a checkpoint designed to prevent unnecessary or wasteful medical spending. When an employer or plan sponsor contracts with a health plan-whether a traditional fully-insured BUCA (Blue Cross, United, Cigna, Aetna) plan or a self-funded arrangement-they delegate the authority to manage utilization to the insurance carrier or a third-party administrator (TPA). Prior authorization is one of their primary tools to ensure that the plan’s resources are used efficiently and that employees receive evidence-based care.
Why Is Prior Authorization Needed?
Health plans implement prior authorization for several interconnected reasons, each tied to controlling costs, improving quality, and reducing waste. Below are the core drivers:
1. Preventing Unnecessary or Duplicative Care
Medical imaging like MRIs, CT scans, and advanced diagnostics are expensive and sometimes ordered without clear clinical necessity. Prior authorization requires the ordering physician to submit clinical notes, test results, and a rationale to the plan’s medical director or a reviewing nurse. This step helps filter out redundant tests or procedures that won’t change the treatment plan, saving both the patient’s time and the employer’s claim dollars.
2. Ensuring Medical Necessity
Insurance contracts typically cover only “medically necessary” services-those that are appropriate, effective, and consistent with standard medical practice. Prior authorization provides a formal mechanism to determine if a proposed treatment meets that definition before it’s delivered. For example, a plan might require authorization for bariatric surgery to confirm that the patient has tried and failed conservative weight-loss methods first, such as diet, exercise, and counseling.
3. Steering Patients Toward Higher-Value Options
Many plans use prior authorization to encourage use of lower-cost but equally effective alternatives. For instance, a plan may require authorization for brand-name specialty drugs only after the patient has tried a generic or therapeutically equivalent medication first. This step-based approach, known as “step therapy,” helps control pharmacy spending while still providing appropriate clinical care.
4. Reducing Waste in the Healthcare System
An estimated 20-25% of U.S. healthcare spending is wasted on inefficiencies, billing errors, and misaligned incentives, according to multiple think-tank analyses. Prior authorization is part of a broader utilization management strategy to catch wasteful practices before they become claims. It acts as a friction point that forces providers to pause and justify high-cost interventions, thereby reducing the volume of non-essential services. This is especially important in self-funded employer plans, where every wasted dollar directly affects the employer’s bottom line and, ultimately, employee premiums.
5. Protecting Patient Safety
Prior authorization isn’t just about cost-it also can improve care quality. By requiring a clinical review, the plan ensures that the procedure or medication is safe for the patient’s specific health profile. For example, authorization for a high-risk surgery might prompt a review of the patient’s cardiac history, medication list, and anesthesia plan, catching potential contraindications before the patient enters the operating room.
Where Is Prior Authorization Most Commonly Required?
While any service can theoretically be subject to prior authorization, it is most frequently applied to these categories:
- Advanced imaging: MRI, CT, PET scans, and nuclear cardiology studies.
- Surgical procedures: Inpatient surgeries, joint replacements, spinal surgeries, and organ transplants.
- Specialty medications: Biologics, infused drugs, chemotherapies, and high-cost injectables.
- Durable medical equipment (DME): Power wheelchairs, oxygen concentrators, and complex prosthetics.
- Inpatient admissions: Non-emergency hospitalizations that are scheduled in advance.
- Outpatient therapy: Prolonged physical, occupational, or speech therapy beyond a certain number of visits.
What Are the Criticisms of Prior Authorization?
Despite its intended benefits, prior authorization is widely criticized by providers, patients, and even some employers for several reasons:
- Administrative burden: Physicians and their staff spend significant time on paperwork and phone calls, often diverting resources from patient care. The American Medical Association has reported that physicians complete an average of 41 prior authorization requests per week, taking up to two business days per request.
- Care delays: When authorization is denied or requires multiple rounds of appeals, patients may experience significant delays in receiving necessary treatment, which can worsen health outcomes.
- Patient frustration: Employees often discover that a procedure they assumed was covered is suddenly denied, leading to surprise bills or out-of-pocket costs. This erodes trust in the benefits system.
- Over-utilization by plans: Some health plans apply prior authorization broadly as a blunt cost-containment tool, even for low-cost or low-risk services, generating friction without meaningful savings. This is especially problematic when the process is outsourced to third-party reviewers with aggressive denial targets.
How Employers Can Manage Prior Authorization Effectively
For employers and benefits leaders, the goal is not to eliminate prior authorization entirely-that would invite rampant waste-but to ensure the process is applied intelligently and transparently. Best practices include:
- Audit your TPA or carrier: Request reports on prior authorization denial rates, appeal success rates, and average turnaround times. Compare these to industry benchmarks.
- Exclude low-risk services: Negotiate with your plan to remove prior authorization for routine screenings, well-woman visits, preventive vaccinations, and generic medications. This reduces administrative noise without increasing risk.
- Integrate with a preventive-first benefit like WellthCare: Systems that reward employees for completing preventive health actions-like scans, lab work, and medication adherence-can reduce the need for downstream high-cost procedures that trigger prior authorization. Healthier populations naturally file fewer expensive claims, lessening the reliance on utilization management tools.
- Educate employees: Clearly communicate which services require prior authorization in your plan design, and provide a dedicated point of contact (e.g., a nurse concierge) to help employees navigate the process. This reduces confusion and ensures care isn’t delayed.
- Leverage data: Use claims analytics to identify patterns where prior authorization is causing delays or denials for necessary care. Address those patterns directly with the plan administrator.
The Bottom Line
Prior authorization remains a necessary-if imperfect-tool to control healthcare spending, reduce waste, and protect patient safety. In the current U.S. benefits landscape, where an estimated 20-25% of spending is wasted, it acts as a critical brake on unnecessary care. However, its effectiveness depends entirely on how it is implemented. Plans that apply prior authorization with clinical nuance, transparency, and a focus on prevention-rather than blanket denials-will achieve better outcomes for both employers and employees.
For employers exploring alternatives, the ideal long-term solution is to reduce the need for prior authorization altogether by building a benefits ecosystem that incentivizes preventive care, aligns incentives across pharmacy and medical spending, and uses real behavioral data to prove that employees are getting healthier. That’s where systems like WellthCare-designed as a Health-to-Wealth operating system-can shift the conversation from managing utilization to driving better health outcomes by design.