These answers draw in part from “**Real World Assessment Challenges: The Gap Between Clinical Best Practices and Payor Practices” by Andi Waks, J.D. (BehaviorLive), and extend it with peer-reviewed research from our library of 27,900+ ABA research articles. Clinical framing, BACB ethics code references, and cross-links below are synthesized by Behaviorist Book Club.
View the original presentation →Insurance companies limit assessment hours for several interrelated reasons. Utilization management practices are designed to control costs by limiting the volume of authorized services. Many payors apply standardized authorization templates that assign a fixed number of assessment hours regardless of case complexity, because individualized review is more expensive and time-consuming. Utilization reviewers may lack specialized knowledge of behavior analysis assessment practices and may apply criteria developed for other healthcare disciplines. Additionally, there is financial incentive to minimize authorized services. The result is a systematic tendency to authorize fewer assessment hours than are clinically necessary, which shifts the burden to providers to either absorb the cost of additional assessment or to compromise assessment quality.
Medical necessity refers to healthcare services that are clinically appropriate and necessary for the diagnosis or treatment of a condition. For behavioral assessment under 97151, medical necessity means that comprehensive, individualized assessment is required to identify the behavioral functions maintaining challenging behavior, to evaluate skill deficits and strengths, and to develop an effective, individualized treatment plan. The specific amount of assessment time that is medically necessary varies by client based on the complexity of the behavioral presentation, the number of settings and contexts requiring assessment, the availability of existing data, and the specific clinical questions that need to be answered. Authorization requests should articulate these client-specific factors to establish the medical necessity of the requested assessment hours.
No. The BACB Ethics Code (2022) requires behavior analysts to conduct assessments adequate for their intended purpose and to provide effective treatment based on comprehensive assessment. If your clinical judgment indicates that additional assessment is needed beyond what was authorized, you should complete the highest-priority assessment components within authorized hours, document the additional assessment activities that are clinically necessary and the rationale for them, submit a request for additional assessment authorization with supporting documentation, and clearly communicate to the family the limitations of a partial assessment. Simply accepting insufficient authorization and providing a treatment plan based on inadequate assessment creates ethical and clinical risks.
Effective documentation serves both clinical and authorization purposes simultaneously. For each assessment session, document the specific assessment activities conducted and their clinical rationale, the time spent on each activity and why that time was necessary, the data collected and preliminary findings, the clinical questions that were addressed and those that remain unanswered, and the connection between assessment findings and treatment planning. Your assessment report should clearly articulate the medical necessity of the services provided and, when applicable, the additional services needed. Avoid vague language and instead use specific, measurable descriptions that demonstrate the clinical value of each assessment component.
When a request for additional assessment hours is denied, you have several options. First, review the denial reason carefully to understand the payor's rationale. Second, prepare an appeal that directly addresses the denial reason with additional clinical documentation and evidence supporting medical necessity. Third, involve the family in the appeals process, as families have independent appeal rights under most insurance plans. Fourth, consult your organization's billing department or compliance officer for guidance on the appeals process. Fifth, document the denial and its impact on clinical care for both the individual client record and for organizational tracking of payor patterns. Persistence in the appeals process often results in authorization, and documented patterns of denial can support broader advocacy efforts.
A strong medical necessity rationale should be client-specific, evidence-informed, and directly address the payor's authorization criteria. Include a clear description of the client's presenting concerns and why they necessitate comprehensive behavioral assessment. Specify the assessment activities you plan to conduct and the clinical questions each will address. Explain why the requested hours are needed based on the complexity of the case, referencing factors such as multiple target behaviors, multiple settings requiring assessment, limited existing data, and comorbid conditions. Connect the assessment to treatment outcomes by explaining how adequate assessment will lead to more effective and efficient treatment, reducing long-term service utilization and costs. Avoid generic language and provide individualized justification for each component of your request.
While providing non-billable assessment services may seem like the ethical choice for individual clients, it creates several significant risks. Financially, it is unsustainable for practitioners and organizations, potentially leading to staffing shortages, burnout, and organizational instability that ultimately harm all clients. Systemically, it enables payor practices that are inadequate because payors face no consequences when providers absorb the cost of unfunded services. If payors never receive authorization requests for the full amount of clinically indicated assessment, they have no data showing that their authorization levels are insufficient. Additionally, non-billable time may not be adequately documented, creating gaps in the clinical record. The better approach is to document clinical need, submit authorization requests reflecting that need, and advocate through the system.
Reassessment frequency should be determined by clinical need rather than arbitrary time intervals. However, most clinical guidelines suggest comprehensive reassessment at least every six months, with more frequent reassessment when there are significant changes in the client's behavioral presentation, emergence of new target behaviors, transitions between settings, or completion of major treatment goals. Justify reassessment requests by documenting specific clinical triggers, presenting data showing changes in behavior patterns or treatment response, and explaining how reassessment will inform treatment modifications that improve outcomes and efficiency. Frame reassessment as a mechanism for ensuring that ongoing treatment remains medically necessary and appropriately targeted, which serves the payor's interest in effective resource utilization.
Families are often the most powerful advocates for adequate services because payors have contractual and regulatory obligations to their members. Educate families about the assessment process and why comprehensive assessment is important for their child's treatment outcomes. Explain what assessment activities you recommend, what was authorized, and the gap between the two. Inform families of their right to appeal authorization decisions and provide them with the clinical documentation needed to support appeals. Help families understand the language of medical necessity and how to articulate why additional assessment is needed. Some families may also choose to contact their state insurance commissioner or their employer's benefits administrator when systematic patterns of inadequate authorization are identified.
When assessment was limited by authorization, your report should transparently document what assessment activities were conducted and what was not conducted due to authorization limitations. Include a statement identifying the specific assessment components that would have been conducted with additional time and the clinical rationale for those components. Describe how the limitations affect the confidence level of your treatment recommendations. Provide treatment recommendations based on the available data while noting areas where additional assessment would refine or modify those recommendations. Include a request for additional assessment authorization with supporting clinical justification. This transparent documentation protects the client by ensuring that treatment limitations are understood, and it creates a record that supports subsequent authorization requests.
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**Real World Assessment Challenges: The Gap Between Clinical Best Practices and Payor Practices — Andi Waks · 1 BACB Ethics CEUs · $30
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All behavior-analytic intervention is individualized. The information on this page is for educational purposes and does not constitute clinical advice. Treatment decisions should be informed by the best available published research, individualized assessment, and obtained with the informed consent of the client or their legal guardian. Behavior analysts are responsible for practicing within the boundaries of their competence and adhering to the BACB Ethics Code for Behavior Analysts.