Insight
Open Enrollment Readiness for Health Plans: Why Functional Testing Accuracy Is Non-Negotiable
Open enrollment puts health plan operations under a microscope. For health plans serving employer groups, millions of people are making coverage decisions while benefit designs, cost-sharing requirements, eligibility information, networks, and other plan details are being prepared for a new plan year.
The scale is significant. Employer-sponsored insurance covers 154 million nonelderly Americans, and 61% of firms with at least 10 employees offer health benefits. Among covered workers, 68% work for an employer that offers more than one type of health plan, adding another layer of choice and complexity. *
And those plans are not necessarily standing still from one year to the next. For 2026, 55% of employers reported making cost-cutting changes to their health plans, including changes to deductibles and other cost-sharing provisions. For health plans, every new plan year brings a significant responsibility: making sure that the benefits and plan provisions that members select during open enrollment are reflected accurately when coverage takes effect. *
Why open enrollment raises the stakes
During open enrollment, health plans may be preparing new benefit designs, updating rates, adjusting provider networks, processing member elections, and getting systems ready for the start of a new plan year. Each change may be manageable on its own, but the real challenge is making sure those changes work correctly together.
Health plan systems and processes are highly interconnected. A missed configuration, incomplete test scenario, or unexpected interaction between systems can create downstream issues that extend well beyond enrollment itself, affecting claims, billing, provider payments, member cost sharing, or access to care.
That makes testing during open enrollment different from testing during a more routine period. Health plans are testing against a risk profile shaped by a greater volume and variety of changes, along with a firm deadline for having them ready.
Functional areas that deserve close attention
The exact testing scope will vary by health plan and line of business, but several functional areas deserve particular attention as the new plan year approaches. These functions are closely connected, so testing them only in isolation can leave gaps that become apparent once information begins moving across systems.
- Benefit plan configuration and accumulator logic. Deductibles, copays, coinsurance, out-of-pocket maximums, and other benefit rules should produce the intended result across a range of member scenarios.
- Enrollment and eligibility processing. Enrollment transactions, including 834 transactions where applicable, need to move accurately through the appropriate systems and downstream processes.
- Provider network and directory accuracy. Members need reliable information about which providers participate in their plan and network.
- Rate and premium calculations. Plan-year updates need to be reflected correctly across the systems and processes that depend on them.
- Coordination of benefits. Testing should account for more complex member situations, not just the simplest or most common scenarios.
- Claims adjudication. Claims need to process according to the plan’s configured benefits, cost-sharing requirements, and business rules.
- Member-facing functionality. Portals and other digital tools should accurately reflect the benefit and network information members rely on.
The value of testing comes not only from validating each area individually, but also from understanding how they interact. End-to-end scenarios can help reveal whether a configuration or data change produces the intended outcome throughout the broader member and operational experience.
Compressed timelines can create testing gaps
One of the biggest open enrollment testing risks is not a lack of commitment to quality. It is the pressure created by deadlines. Late configuration updates, revised requirements, custom code changes, and other adjustments can reduce the amount of time available for testing as the effective date approaches. Teams may be forced to make choices about how broadly and deeply they can test, increasing the possibility that less-common scenarios will receive less attention.
Those scenarios may be uncommon individually, but they should not automatically be considered insignificant. Across a large member population, an issue affecting even a small percentage of members can still translate into a meaningful number of people encountering problems when they try to use their coverage.
The goal, then, should not simply be to execute the greatest possible number of test cases. Health plans can get more value from prioritizing testing based on risk and protecting coverage for the scenarios where an incorrect result could have the greatest downstream impact.
Look beyond the “happy path”
Open enrollment readiness requires teams to consider what happens outside the most straightforward scenarios. A basic enrollment or claims transaction might behave exactly as intended, while a less-common combination of benefits, eligibility circumstances, or coordination-of-benefits rules produces an unexpected result.
Testing should therefore reflect the ways real members and real transactions move through the health plan ecosystem. That means considering how a benefit interacts with accumulator logic, how an eligibility change flows across systems, or whether provider and network information remains consistent throughout the member experience.
A risk-based approach can help teams focus limited time and resources on the business rules, configurations, integrations, and member scenarios where an error would be particularly disruptive. It can also help prevent testing from becoming simply the last task completed before implementation.
Measure success by what happens after enrollment
Testing teams understandably track test cases, defects, pass rates, and other quality metrics. Those measures are useful, but the ultimate test of open enrollment readiness comes when members begin using their new coverage.
A stronger measure of open enrollment readiness is whether the entire member experience works as intended when coverage takes effect. Are enrollment and eligibility records correct? Do claims adjudicate according to the intended benefit design? Are deductibles and other accumulators being calculated correctly, and do members see accurate provider, network, billing, and cost-sharing information?
Successful testing builds confidence that those experiences will work as intended when coverage begins. The work taking place behind the scenes during open enrollment should ultimately result in a new plan year in which members can use their benefits without discovering errors that should have been identified before launch.
Protect testing when pressure rises
Open enrollment will always bring deadlines, competing priorities, and last-minute changes. The answer is not necessarily to test every scenario equally, but to understand where changes create the greatest risk and maintain sufficient coverage for critical workflows.
Testing accuracy matters because errors rarely remain confined to the place where they begin. A configuration issue can become a claims issue, a billing issue, a provider issue, or a member experience issue once the new plan year is underway.
Health plans that treat testing as an essential part of open enrollment readiness are better positioned to find those problems before members do. Protecting testing coverage when timelines become compressed can help keep a seemingly small issue from becoming a much larger operational challenge.
How Tegria can help
Tegria supports health plans with quality assurance and testing focused on healthcare workflows, business rules, and high-risk scenarios. Our teams help health plans identify potential issues before they affect members and operations after go-live.
Prepare for open enrollment with greater confidence. Contact Us.