interRAI Is the Right Standard. Nebraska Shows Why Implementation Decides Everything.

interRAI is the most rigorously validated family of assessment instruments in long-term care, and more U.S. states are adopting it to standardize how they measure need. That is the right direction. But an assessment instrument is not self-implementing. The software, the workflow, and the policy wrapped around it decide whether interRAI empowers a person-centered plan or hardens into a budget gate no one can see behind. Nebraska in 2026 is a cautionary tale about the second path, and a clear brief for building the first.

Why interRAI is worth adopting

interRAI (the International Resident Assessment Instrument suite) gives LTSS programs a common, evidence-based language for need. Standardized items feed validated scales, ADL Hierarchy, Cognitive Performance, Depression Rating, CHESS, and others, and trigger Clinical Assessment Protocols (CAPs) that point to the domains a plan should address. Used across dozens of countries and a growing number of states, it makes assessments comparable, longitudinally trackable, and defensible in a way home-grown tools rarely are. Adopting it is a sound decision.

The value is real, and it is also conditional. interRAI standardizes the questions and the scales; it does not, by itself, guarantee that a person can understand, trust, or appeal the determination that follows. That part is implementation, and implementation is where programs succeed or fail.

What happened in Nebraska

In 2026 the Nebraska Department of Health and Human Services moved its developmental-disability HCBS waivers off legacy tools (the DI and ICAP) and onto interRAI to determine level of care and individualized budgets. The transition became contested quickly, and the reported concerns map almost exactly onto the failure modes that make any assessment feel arbitrary.

• An individual with a developmental disability and four advocacy organizations sued DHHS, alleging the process violates due process and state law because people are not given enough information to understand or challenge reductions in their level of care and individualized budgets. The plaintiffs ask the court to require an objective assessment process that complies with state law.
• At a July 2026 state advisory committee, families reported that caregiver observations about nonverbal individuals were captured in comment fields but not reflected in the score, contributing to funding downgrades; that a Case Mix Index flowchart exempted people living at home from certain questions, preventing documentation of real needs such as bathroom assistance; and that state representatives could not answer specific questions about how determinations were made.
• Families formed the Disability Alliance of Nebraska and petitioned the state to pause assessments, restore prior funding tiers, and commission an independent review. The state has said it plans to hire a contractor to review and customize the tool for Nebraska with stakeholder input.

These are publicly reported concerns and allegations, and the point is not to litigate Nebraska. The point is that none of this is unique to Nebraska or to interRAI. It is what happens whenever an assessment becomes an opaque gate rather than a transparent input to a plan.

The failure mode is opacity, not interRAI

Research on automated level-of-care systems has documented the pattern for years: states can layer a scoring flowchart, reweight items, or move a threshold on top of the validated instrument, often with little public visibility. The same interRAI answers can produce eligibility in one state and denial in another, which means the determinative layer is policy, not clinical fact. When that layer is invisible, a family cannot understand a cut, and cannot meaningfully appeal it. That is the due-process problem in one sentence.

There is a deeper reframe worth stating plainly. An assessment should inform a person-centered service plan, not gatekeep a budget behind a flowchart no one can see. When the assessment is only a gate that converts a score into a dollar figure with no explanation, every downgrade feels arbitrary, and in practice is often unappealable. When the assessment instead drives a plan, its findings become visible, contestable, and actionable.

Resource allocation is not a gate

It helps to be precise about what interRAI’s outputs are for. The scales describe function. The Clinical Assessment Protocols flag the areas a care plan should address. And case-mix classification estimates the relative intensity of resources a person is likely to need. None of these were designed to switch a program on or off. The suite is an assessment and decision-support system, not a limiter on access.

Case-mix in particular is a resource-distribution tool. The interRAI Intellectual Disability case-mix system sorts adults with intellectual and developmental disabilities into thirty-three groups that are homogeneous in resource use, so funding can track need across a whole population. That is a mechanism for allocating resources fairly, not a mechanism for deciding who qualifies. The trouble starts when the two are conflated: when a case-mix or acuity score is quietly repurposed as the eligibility or budget gate, a planning instrument becomes a rationing device, and the person on the other end has no visible, contestable link between their needs and the number that comes out. Nebraska’s Case Mix Index flowchart sat squarely on that fault line, an allocation and tiering mechanism placed in the path of a budget determination without a transparent, appealable connection to need.

Kansas shows the other way

The same instrument family can produce the opposite result when a program implements it with discipline. On July 1, 2025, Kansas moved its intellectual and developmental disability waiver off its legacy BASIS screener and onto the interRAI-based Medicaid Functional Eligibility Instrument (MFEI), and it deliberately separated the questions that Nebraska blurred. The MFEI determines level-of-care eligibility; interRAI care-planning tools drive the service plan; and eligibility for the I/DD system is established first, in a conflict-free assessment run through the state’s disability resource and community developmental disability organizations.

Most important, Kansas validated the new instrument against the one it replaced. In field testing, every individual who was eligible under BASIS remained eligible under the MFEI, and the state framed the goal explicitly as a more accurate, standardized, person-centered level-of-care determination, not a way to remove services. It committed that no one would lose services and that services would not be reduced in scope, length, or quality, held existing rates in place through the transition, and took a phased approach, analyzing data and finalizing rate methodology before full implementation, over a strengths-and-needs instrument rather than BASIS’s deficit-based model.

More than a year on, that discipline has held. The switch to an interRAI-based instrument has not produced a rise in ineligibility, the outcome field testing predicted and go-live bore out. Where Nebraska’s transition produced downgrades families could not explain, Kansas’s has sustained existing access and avoided adverse impact on new applicants. Same suite, opposite outcome, because one program calibrated for access and transparency and the other did not.

What a transparent, defensible interRAI implementation requires

Whether you are a state, an MCO, or a provider, the implementation, not the instrument, is the real project. A defensible one has these properties:

• Deterministic, auditable scoring. Every scale and CAP is computed by open, rule-based logic, never a black box or a machine-learning guess. A reviewer can trace any score back to the exact responses that produced it.
• Everything surfaced. Scale values with their risk bands, triggered CAPs with dates and priority, and trends over time are visible to the assessor, the person, and any reviewer, not buried in an export.
• Clinical context that is attributable, not lost. An assessor note about a nonverbal individual should be visible to reviewers and carried into the plan, with the author and date attached, even where the instrument scoring rules do not change.
• Evidence-linked service plans. Each identified need, goal, and intervention cites the specific scale or CAP it came from, so the plan reflects findings rather than guesswork, and the person can see why.
• A versioned audit trail. Every assessment and revision is retained, so a determination and any later change to it can be reconstructed for an appeal.
• Attested customization. If a program configures a scale or threshold, that change is recorded with provenance and attestation, applied in the open, not silently.
• Allocation kept separate from access. Case-mix and acuity scores estimate how much support a person needs; they must never double as a hidden switch for whether the person qualifies. When a program adopts a new instrument, it should validate it against the one it replaces, so existing enrollees keep access and new applicants are not adversely impacted.
• De-identified longitudinal export. Year-over-year, standards-conformant data supports oversight and quality review without exposing protected health information.

How CertifyMed implements interRAI

CertifyMed implements the interRAI suite as a transparent input to person-centered service planning, and it is built around exactly the capabilities whose absence created Nebraska’s crisis.

• Breadth: eleven interRAI instrument families (Home Care, Long-Term Care Facilities, Community Health, Intellectual Disability, Mental Health, Child and Youth, Pediatrics, Post-Acute Care, and more), alongside fourteen validated screening tools such as PHQ-9, GAD-7, MoCA, and Katz ADL.
• Deterministic scoring, no machine learning. Validated scales (ADL Hierarchy, Cognitive Performance, Depression Rating, Aggressive Behaviour, CHESS, social engagement, fall risk) and six Collaborative Action Plans (Falls, ADL and Rehabilitation, Cognitive, Behavioral, Social Engagement, Physical Activity) are computed from responses and shown with their bands, trigger dates, priority, and trend history.
• An evidence-linked bridge into the plan. Findings translate across life-area domains, ADL, IADL, behavioral health, cognition, safety, community integration, communication, employment, and housing, and every problem, goal, and intervention can cite the exact CAP or scale it came from.
• Allocation that informs, not gates. Case-mix classification and CAP triggers are surfaced as resource-planning and care-planning signals that feed the service plan, with a traceable line from responses to result, kept distinct from the question of who qualifies.
• Transparency and provenance by default. Assessments are versioned with an audit trail and reviewer attribution, assessor comments sit alongside the record, custom scale configurations are captured with attestation, and an annual de-identified interRAI export supports oversight without exposing PHI.

One honest boundary: CertifyMed faithfully implements the interRAI instruments; it does not invent scoring or set a state’s eligibility policy. What it does is make the assessment, its scoring, and its translation into a plan transparent, evidence-linked, and appealable. That is precisely the layer Nebraska was missing.

The takeaway

Adopt interRAI, and adopt the full suite, not a single score pulled out of it to serve as a gate. Used whole, the instrument does what it was built to do: it puts the person’s needs at the center and plans resources around them. The assessment surfaces strengths and needs, the Clinical Assessment Protocols turn those findings into the substance of a plan, and case-mix aligns resources to the intensity of support that plan requires, in that order, with the person visible at every step. That is the difference between an instrument that rations and one that serves.

So treat implementation as the actual project: build for transparency, evidence-linked service planning, and a defensible audit trail from day one, and give people a clear, contestable line from their answers to their plan. Done that way, interRAI is not a limiter on access. It is what it was always meant to be, an engine for person-centered needs and resource planning, and it earns the trust of the people it assesses.

Sources

• Nebraska resident with developmental disabilities sues state over new assessment system (OPEN MINDS, 2026)
• Individuals with developmental disabilities take interRAI assessment concerns to state advisory committee (1011 NOW, July 2026)
• Developmental Disabilities Advisory Committee reviews quality metrics, access to care and interRAI changes (Flatwater Free Press, July 2026)
• Calculated Need: Algorithms and the Fight for Medicaid Home Care (Upturn)
• A Case-Mix System for Adults with Developmental Disabilities (Martin et al., PubMed 31263374)
• Resource Allocation (interRAI)
• Medicaid Functional Eligibility Instrument (MFEI) and interRAI Care Planning (Kansas KDADS)

interRAI is a registered instrument suite of the interRAI consortium. This article summarizes publicly reported concerns and pending litigation as of August 2026 and reflects CertifyMed’s perspective on implementation quality.