2.1 Case Management Delivery Models and Frameworks

2.1 Case Management Delivery Models and Frameworks

High-Yield Exam Focus: The ANCC CMGT-BC exam consistently evaluates your understanding of role boundaries and operational workflows in hospital-based delivery structures. You must be able to instantly distinguish between the responsibilities of the Registered Nurse Case Manager (RN CM) and the Medical Social Worker (MSW) in the Dyad model, understand how the Triad model adds a dedicated Utilization Management (UM) Specialist to streamline payer interactions, differentiate Complex Case Management from Disease Management, and apply the CMSA Eight Essential Activities to real-world clinical situations.

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Foundations of Care Delivery Frameworks

Case management delivery models are structured systems designed to organize, coordinate, and monitor healthcare services across settings. The goal is to achieve the quadruple aim: improving patient experience, enhancing population health, reducing per capita healthcare costs, and supporting clinician well-being. The structure of a delivery model dictates how patient identification occurs, how responsibilities are divided among interprofessional team members, and how clinical transitions are executed.

In contemporary practice, delivery models have evolved from fragmented, single-discipline efforts into highly integrated, interprofessional frameworks. Whether situated within an acute care hospital, an ambulatory health system, a commercial managed care organization, or a community health network, the chosen model directly impacts clinical progression, resource utilization, and patient safety.

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Hospital-Based Dyad and Triad Models

In the acute care setting, hospitals have transitioned through various staffing paradigms to balance clinical care progression with complex payer requirements and socioeconomic discharge barriers. The two primary contemporary configurations are the Dyad Model and the Triad Model.

+-----------------------------------------------------------------------------------+
|                             ACUTE CARE DYAD MODEL                                 |
+-----------------------------------------+-----------------------------------------+
|       REGISTERED NURSE CASE MANAGER     |          MEDICAL SOCIAL WORKER          |
|  * Medical necessity & InterQual/MCG    |  * Complex psychosocial assessment      |
|  * Clinical care progression & delays   |  * Crisis intervention & adjustment     |
|  * Two-Midnight Rule & status review    |  * Abuse, neglect & protective services |
|  * Clinical post-acute placement        |  * Guardianship & court petitions       |
|    (SNF, IRF, LTACH, Home Health, DME)  |  * Medicaid & uncompensated charity     |
|  * Payer concurrent review & denials    |  * Shelters, substance use & psych      |
+-----------------------------------------+-----------------------------------------+

                                         │ Evolution under High UM Burden
                                         ▼

+-----------------------------------------------------------------------------------+
|                            ACUTE CARE TRIAD MODEL                                 |
+-----------------------+-----------------------------------+-----------------------+
|     RN CASE MANAGER   |     UTILIZATION MANAGEMENT (UM)   |  MEDICAL SOCIAL WORKER|
|  * 100% Floor-facing  |  * Payer concurrent reviews       |  * Dedicated to       |
|  * Bedside progression|  * Prior authorizations           |    psychosocial and   |
|  * Multidisciplinary  |  * Commercial denial management   |    socioeconomic      |
|    daily rounds       |  * Physician peer-to-peer setup   |    complexities       |
|  * Complex clinical   |  * Two-Midnight tracking & audits |  * Safety net, legal, |
|    handoffs & DME     |  * HINN & NOMNC regulatory notices|    shelters & Medicaid|
+-----------------------+-----------------------------------+-----------------------+

The Inpatient Dyad Model: Scope Division and Interprofessional Synergy

The Dyad Model is the most widespread case management model in acute care hospitals. It pairs a Registered Nurse Case Manager (RN CM) with a Medical Social Worker (MSW) on an assigned clinical unit or patient service line (e.g., cardiology, surgical oncology, general medicine). The model functions on the principle that acute hospitalization presents simultaneous clinical-physiological challenges and psychosocial-financial vulnerabilities that require distinct, specialized professional competencies.

The Registered Nurse Case Manager Role

The RN CM leverages clinical assessment skills, pathophysiology knowledge, and healthcare systems expertise to drive care progression. Key responsibilities include:

• Medical Necessity and Utilization Review: Screening admissions against evidence-based screening criteria (e.g., InterQual, MCG) to ensure appropriate bed placement (Observation versus Inpatient under the CMS Two-Midnight Rule).
• Clinical Care Progression: Monitoring daily orders, diagnostic test turnaround times, and subspecialty consult completion; identifying and resolving clinical bottlenecks (avoidable delay days).
• Clinical Post-Acute Care Coordination: Assessing patient eligibility and coordinating clinical referrals for post-acute levels of care that require medical/nursing oversight, including Skilled Nursing Facilities (SNF), Inpatient Rehabilitation Facilities (IRF), Long-Term Acute Care Hospitals (LTACH), Home Health Care (HHC), and Durable Medical Equipment (DME) such as wound VACs, continuous oxygen, or intravenous infusion therapy.
• Payer Communication: Conducting clinical reviews and communicating clinical justification directly to commercial insurance and managed Medicare/Medicaid medical review teams.

The Medical Social Worker Role

The MSW specializes in systemic assessment, crisis intervention, counseling, and social safety-net navigation. Key responsibilities include:

• Comprehensive Psychosocial Assessment: Evaluating family dynamics, caregiver capacity, psychiatric history, coping mechanisms, substance use disorders, and domestic violence/safety risks.
• Legal and Ethical Navigation: Assisting with surrogate decision-making when patients lack capacity, facilitating healthcare power of attorney documentation, and petitioning probate court for legal guardianship when an unrepresented, incapacitated patient requires institutional placement.
• Financial and Entitlement Assistance: Navigating state Medicaid applications, SSI/SSDI disability programs, institutional charity care, pharmaceutical patient assistance programs, and catastrophic illness funds.
• Specialized Social Dispositions: Coordinating transfers to psychiatric facilities, substance use residential rehabilitation, emergency homeless shelters, board-and-care homes, or assisted living facilities.
• Mandatory Reporting: Investigating and filing official reports for suspected elder abuse, child abuse, or vulnerable adult neglect with Adult Protective Services (APS) or Child Protective Services (CPS).

Operational Synergy: Daily Interprofessional Huddles and Rounds

In a high-functioning dyad model, the RN CM and MSW conduct joint multidisciplinary rounds (MDR) or daily "bed huddles" alongside hospitalists, charge nurses, physical therapists, and clinical pharmacists. During these 60- to 90-second patient reviews, the RN CM presents the clinical milestone status, target discharge date, and post-acute clinical trajectory, while the MSW updates the team on family meetings, financial clearance, and social barrier resolution. This collaborative huddle prevents duplicative questioning of the patient and ensures seamless transition planning from Day 1 of admission.

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The Inpatient Triad Model: Mitigating Administrative Burden

As payer utilization management demands intensified—characterized by aggressive concurrent denials, mandatory prior authorizations, and complex peer-to-peer review scheduling—hospitals found that RN CMs in dyad models were spending up to 60% of their workday behind computers on telephonic hold with insurance companies. This administrative overload pulled the RN CM away from the bedside, multidisciplinary rounds, and direct patient care progression.

To solve this systemic breakdown, forward-thinking health systems established the Triad Model. The triad separates utilization management from clinical transition coordination by creating three dedicated roles:

1. Floor-Based RN Case Manager (Care Coordination Specialist): Embedded on the clinical unit, this nurse focuses 100% of their time on bedside clinical care progression, attending multidisciplinary rounds, educating patients and families on transition pathways, evaluating physical functional status with physical therapy, and orchestrating complex post-acute clinical handoffs.
2. Dedicated Utilization Management (UM) Specialist (RN or Physician Reviewer): Typically centralized in an administrative office or working remotely, this specialized nurse focuses exclusively on payer-facing activities: conducting concurrent reviews against InterQual/MCG criteria, monitoring Two-Midnight rule compliance, managing payer authorizations, drafting commercial denial appeals, and scheduling physician peer-to-peer reviews.
3. Medical Social Worker (MSW): Remains dedicated to comprehensive psychosocial evaluations, crisis management, guardianship, complex social placements, and social determinants of health.

Advantages of the Triad Structure

• Increased Bedside Engagement: The floor RN CM is visible, accessible to physicians and bedside staff, and directly involved in preventing day-to-day clinical delays.
• Specialized UM Expertise: The dedicated UM specialist develops deep expertise in specific commercial payer contracts, Medicare Advantage guidelines, and appeal strategies, resulting in reduced denial rates and faster authorization turnaround times.
• Enhanced Job Satisfaction: Segregating the transactional administrative burden of payer reviews from clinical care coordination decreases nurse burnout and mitigates moral distress.

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Diverse Case Management Delivery Models Across the Continuum

Beyond acute care inpatient units, case management operates across diverse healthcare delivery frameworks. The ANCC CMGT-BC exam requires familiarity with these historical and continuum-based models.

The Brokerage / Generalist Model

• Core Mechanism: The case manager serves as an external broker, counselor, and clearinghouse. The manager conducts an initial intake assessment, identifies needs, and provides the client with referrals, contact information, and vouchers for external community agencies, social services, or post-acute providers.
• Operational Horizon: The broker does not deliver direct clinical care, does not monitor clinical disease pathophysiology, and maintains minimal ongoing longitudinal engagement once connections are made.
• Application Setting: Commonly utilized in traditional public welfare programs, community mental health networks, and Medicaid home and community-based services (HCBS) waiver programs.
• Strengths and Limitations: Highly cost-effective for connecting stable clients with community resources. However, it fails completely for clinically unstable, multimorbid patients who require proactive clinical monitoring, advocacy, and care plan titration.

The Primary Nurse Model

• Core Mechanism: The bedside staff nurse delivering direct acute bedside care also assumes responsibility for the patient's case management, utilization review, and discharge planning throughout the hospital stay.
• Operational Horizon: Strictly episodic and unit-bound; terminates upon patient discharge from the hospital bed.
• Strengths and Limitations: The nurse has intimate, first-hand knowledge of the patient's immediate physiologic status, wound care needs, and medication responses. However, it possesses severe operational flaws: acute bedside clinical emergencies inevitably take priority over discharge planning, staff nurses typically lack specialized knowledge of insurance authorization rules or post-acute contracting, and there is zero cross-continuum follow-up once the patient leaves the facility.

The Clinical / Integrated Model (Zander / Center for Case Management)

• Core Mechanism: Pioneered by Karen Zander and Kathleen Bower, this model integrates clinical quality management, resource utilization, critical pathways, and discharge planning into a single professional nursing case management practice. The case manager follows an assigned patient cohort throughout their episode of illness.
• Operational Tool: Relies heavily on Clinical Pathways (multidisciplinary care maps outlining evidence-based interventions and expected outcomes across each day of hospitalization). The case manager conducts Variance Analysis whenever the patient's actual progress deviates from the pathway.
  • Patient Variances: Delays caused by patient clinical changes (e.g., postoperative fever, acute kidney injury) or patient choice (e.g., refusing physical therapy).
  • System / Operational Variances: Delays caused by hospital operational bottlenecks (e.g., MRI broken over the weekend, echocardiogram report pending 48 hours).
  • Practitioner Variances: Delays caused by physician ordering patterns (e.g., attending surgeon failing to write the discharge order until late evening).
• Application Setting: Widely adopted in tertiary hospitals, academic medical centers, and surgical specialty institutes.

The Disease Management (DM) Model

• Core Mechanism: A population-based, algorithmic approach that targets large cohorts of individuals diagnosed with a single chronic condition (e.g., Heart Failure, Type 2 Diabetes, COPD, Asthma, Coronary Artery Disease).
• Operational Horizon: Longitudinal and outbound telephonic, employing standardized clinical guidelines and scripted protocols. Focuses on patient self-management education, lifestyle modifications, biomarker tracking (e.g., HbA1c < 7.0%, daily morning weights, peak flow tracking), and medication adherence.
• Critical Distinction from Complex Case Management:
  • Disease Management: Population-level, outbound telephonic, single-disease focus, protocol/algorithm-driven, addresses low-to-moderate complexity cohorts.
  • Complex Nursing Case Management: Individual-level, holistic biopsychosocial assessment, multimorbid (multiple interacting chronic illnesses), high-spend/high-utilizer focus, customized patient-centered care plans addressing complex social determinants of health.

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The Case Management Process: CMSA Components and Eight Operational Activities

The CMSA Standards of Practice for Case Management (Revised 2022) - the 5th edition, and the document the ANCC Test Content Outline names under Professional Foundation - is built from two distinct parts. Candidates lose points by conflating them, so learn them separately.

Part 1: The Six Components of the Case Management Process (CMSA, Section VI)

CMSA describes the process as cyclical and recurrent rather than linear, with communication, facilitation, coordination, collaboration, and advocacy occurring throughout every step. Its six primary components are:

1. Client Identification, Selection, and Engagement - screening referrals for appropriateness, engaging the client and family or caregiver, and obtaining consent for case management services as part of case initiation.
2. Assessment and Opportunity Identification - gathering, analyzing, and synthesizing medical, behavioral health, substance use, and social-determinant data to identify needs, barriers, and gaps in care.
3. Development of the Case Management Plan of Care - documenting identified needs and opportunities, prioritized goals and outcomes, and the interventions required to reach them, with client participation.
4. Implementation and Coordination of the Plan of Care - coordinating care, services, resources, and health education specified in the planned interventions.
5. Monitoring and Evaluation of the Plan of Care - ongoing follow-up, evaluation of goals and outcomes, and revision of the plan when interventions are no longer appropriate, relevant, or realistic.
6. Closure of Professional Case Management Services - a mutual decision to discontinue services when the client has reached the highest attainable level of functioning and recovery or when client needs and desires have changed.

Part 2: The Standards of Professional Case Management Practice (CMSA, Section VII)

The 2022 Standards themselves are lettered A through P, reordered in this edition to follow the execution of the case management process: A. Qualifications; B. Professional Responsibilities; C. Legal (including confidentiality and client privacy); D. Ethics; E. Advocacy; F. Cultural Competence; G. Resource Management; H. Health Information Technology; I. Client Selection; J. Client Assessment; K. Identification of Care Needs and Opportunities; L. Planning; M. Facilitation, Coordination, and Collaboration; N. Monitoring; O. Outcomes; and P. Closure of Professional Case Management Services. CMSA published an official addendum, Standard Q: Diversity, Equity, Inclusion, and Belonging (DEIB) and Health Equity, on October 16, 2024. The 2022 revision also expanded the recognized disciplines of designated case managers to include occupational therapists, pharmacists, physical therapists, and speech therapists alongside registered nurses, physicians, and social workers.

Exam Trap - Do Not Mix the Frameworks. CMSA has six process components and lettered standards. The familiar nine-phase sequence (Screening, Assessing, Stratifying Risk, Planning, Implementing/Care Coordination, Following-Up, Transitioning, Communicating Post-Transition, Evaluating) belongs to the Commission for Case Manager Certification (CCMC) Case Management Body of Knowledge (CMBOK), not to CMSA. If a stem attributes a numbered phase list to the CMSA Standards, read the answer options carefully.

Part 3: The Eight Operational Activities Used in Daily Practice

The eight activities below are the operational teaching expansion of the CMSA components and the CCMC CMBOK phases - the sequence most departments actually document in the EHR. They are not a rigid linear checklist; they function as an ongoing, dynamic, and iterative process that responds continuously to the client's evolving clinical, psychosocial, and financial circumstances.

                    EIGHT OPERATIONAL ACTIVITIES OF THE CASE MANAGEMENT PROCESS

     1. SCREENING         ──▶   2. ASSESSING         ──▶   3. STRATIFYING RISK
  (Identify Triggers)         (Biopsychosocial)            (Triage by Acuity)
          │                                                         │
          ▼                                                         ▼
     6. COORDINATING      ◀──   5. IMPLEMENTING      ◀──   4. PLANNING
  (Align Interprofessional)   (Action & Authorization)      (SMART Care Goals)
          │
          ▼
     7. MONITORING        ──▶   8. EVALUATING        ──▶   TRANSITION / CLOSURE
  (Track Variances)           (Measure Outcomes)           (Safe Handover)

1. Screening

• Definition: The initial proactive identification of individuals or populations who would benefit from case management services.
• Operational Triggers: Screening utilizes standardized automated electronic health record (EHR) triggers, predictive algorithms, or direct clinical referrals. High-yield screening triggers tested on the CMGT-BC exam include:
  • Clinical complexity: ≥ 3 inpatient admissions or ED visits within the preceding 6 months.
  • Pharmacology: Polypharmacy defined as ≥ 10 active routine prescription medications or high-risk regimens (e.g., dual antiplatelet therapy plus oral anticoagulation, high-dose insulin, or outpatient continuous IV inotropes).
  • Payer/Financial: Catastrophic diagnoses (new quadriplegia, extensive burn trauma, multivisceral organ transplant) or approaching policy benefit caps.
  • Social Vulnerability: Unhoused status, documented food insecurity, lack of family/caregiver support, or cognitive impairment with living alone.

2. Assessing

• Definition: The systematic, comprehensive collection of clinical, functional, psychosocial, financial, environmental, and health literacy data directly from the client, family/caregiver, and interprofessional records.
• Core Components: A comprehensive biopsychosocial assessment must evaluate:
  • Physical & Cognitive Health: Chronic disease burden, sensory deficits, mental health diagnoses, cognitive screening (e.g., Mini-Cog, MoCA).
  • Functional Status: Independence in Activities of Daily Living (ADLs: bathing, dressing, toileting, transferring, eating) and Instrumental Activities of Daily Living (IADLs: managing finances, medications, transportation, meal preparation).
  • Psychosocial Dynamics: Caregiver stress and burnout, bereavement, substance use history, domestic safety.
  • Financial & Environmental: Insurance benefit limitations, copay/deductible affordability, home structural barriers (e.g., stairs, lack of running water, hoarding).
  • Health Literacy & Cultural Beliefs: Primary language, cultural health practices, ability to comprehend medical instructions.

3. Stratifying Risk

• Definition: The systematic classification of clients into specific risk categories or tiers to determine the appropriate intensity, frequency, and duration of case management interventions.
• Risk Tiers:
  • Low Risk / Well-Managed: Stable chronic disease, high self-efficacy, adequate social support. Managed via automated preventative reminders or annual wellness outreach.
  • Moderate / Rising Risk: Chronic disease with occasional exacerbations, emergent care gaps (e.g., overdue diabetic retinal exam, poorly controlled hypertension), rising utilization. Managed via disease management or targeted care coordination.
  • High / Complex Risk: Multimorbid disease burden, frequent emergency or acute hospitalizations, severe psychosocial distress, high total cost of care. Assigned to intensive, individualized complex nursing case management.
• Predictive Scoring Tools: Case managers utilize risk assessment models such as Hierarchical Condition Categories (HCCs), LACE Index (Length of stay, Acuity of admission, Comorbidities, Emergency department visits in previous 6 months), or the HOSPITAL score to predict 30-day readmission risk.

4. Planning

• Definition: The collaborative formulation of an individualized, client-centered, goal-oriented care plan with specific, measurable action steps.
• SMART Goal Construction: Goals must be Specific, Measurable, Achievable, Relevant, and Time-bound. Rather than vague statements ("patient will manage heart failure"), the case manager drafts actionable milestones ("patient will record daily morning weight and call the clinic if weight increases by 3 pounds in 24 hours, achieved within 7 days").
• Client Empowerment: The plan must reflect the client's own values, cultural preferences, and self-identified priorities—not merely clinician directives.

5. Implementing

• Definition: Executing the specific action steps delineated in the collaborative care plan.
• Operational Interventions: Obtaining prior authorizations from health plans; securing durable medical equipment; placing post-acute referrals (home health, skilled nursing); scheduling specialized medical appointments; linking clients with community-based food pantries or medical transit; and enrolling eligible clients into copay assistance programs.

6. Coordinating

• Definition: Synchronizing, organizing, and integrating services and communication among all members of the interprofessional healthcare team, the client, family caregivers, and external community agencies.
• Core Function: Eliminating systemic fragmentation. The case manager ensures that the primary care physician, medical subspecialists, hospitalists, home health nurses, physical therapists, and family caregivers are aligned on the current treatment trajectory, preventing conflicting instructions and duplicative diagnostic testing.

7. Monitoring

• Definition: Continuous, systematic surveillance of the client's health status, response to treatment, adherence to the care plan, and progression toward established goals.
• Active Feedback Loops: Telephonic or in-person outreach; reviewing newly populated laboratory and imaging data; evaluating post-acute clinical documentation; and conducting Variance Analysis when expected clinical milestones or discharge dates are missed.

8. Evaluating

• Definition: Measuring the overall effectiveness and clinical/financial outcomes of the case management interventions against baseline benchmarks.
• Outcome Categories:
  • Clinical Outcomes: Control of physiological biomarkers (HbA1c, blood pressure, ejection fraction), reduction in acute clinical exacerbations.
  • Quality of Life & Functional Outcomes: Improvement in functional ADL/IADL independence, patient-reported physical functioning, patient satisfaction scores.
  • Resource Utilization & Financial Outcomes: Decrease in 30-day readmissions, reduction in unnecessary ED visits, adherence to geometric mean length of stay, total cost of care optimization.
• Case Closure / Transition: If goals have been successfully achieved and the client demonstrates sustained self-management competence, the case manager executes formal, ethical case closure or transitions the client to a lower level of care coordination.

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Clinical Application: Operationalizing Care Delivery Models

Comprehensive Case Scenario

A 72-year-old client with a history of severe ischemic cardiomyopathy (ejection fraction 25%), stage 4 chronic kidney disease, diabetic peripheral neuropathy, and recurrent major depressive disorder is admitted to an acute medical floor with acute decompensated heart failure and a non-healing sacral stage 3 pressure injury.

The patient's social history reveals that their primary caregiver spouse passed away four weeks ago. The patient lives alone in a rural single-story home, has an income limited to Social Security, and has missed multiple nephrology appointments due to lack of transportation. Over the past four months, the patient has had four emergency department visits and three inpatient admissions for acute fluid overload.

Execution Across Delivery Frameworks

1. In an Acute Care Dyad Model:

   • RN Case Manager Action: Confirms inpatient medical necessity criteria; reviews IV diuretic therapy response; performs clinical assessment for post-acute home health nursing and wound VAC placement; initiates Medicare homebound certification documentation; and coordinates outpatient intravenous diuretic clinic follow-up.
   • Medical Social Worker Action: Conducts bereavement assessment; assesses financial eligibility for Medicaid secondary coverage to pay for prescription drug copays; links patient with local Area Agency on Aging (AAA) for rural medical transportation vouchers; and arranges emergency Meals on Wheels delivery.

2. In an Inpatient Triad Model:

   • UM Specialist Action: Immediately reviews EHR clinical notes to submit concurrent authorization to the patient's Medicare Advantage plan for inpatient status under the Two-Midnight rule, pre-authorizes the negative pressure wound therapy (wound VAC) canister rental, and manages concurrent payer reviews, shielding the floor RN CM from administrative telephone delays.
   • Floor RN CM Action: Attends bedside multidisciplinary rounds with the cardiologist, coordinates wound care education with the clinical wound specialist, verifies the patient can demonstrate correct daily weight recording using the teach-back method, and orchestrates the clinical warm handoff to the post-acute home health agency.

3. Post-Discharge Continuum Allocation (Complex CM vs. Disease Management):

   • Incorrect Disposition: Enrolling the patient solely into an automated telephonic Disease Management program for heart failure. The automated algorithm will fail because it cannot address the stage 4 CKD dietary conflicts, bereavement-related depression, severe financial distress, or rural transit barriers.
   • Correct Disposition: Enrollment into an outpatient Complex Nursing Case Management program. The outpatient RN case manager conducts home visits, coordinates care between the cardiologist and nephrologist to balance fluid removal without destroying residual renal function, monitors mental health therapy engagement, and ensures rural transit schedules align with clinic appointments.

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Common Exam Traps & High-Yield Takeaways

• Exam Trap 1: Dyad Role Blurring. When an exam question involves an unrepresented, cognitively impaired patient requiring an emergency legal guardian or public entitlement enrollment, never select the RN Case Manager. Legal guardianship petitions, mental health commitments, and financial Medicaid applications belong strictly to the Medical Social Worker.
• Exam Trap 2: Triad Workflow Mechanics. In a Triad model, the Utilization Management Specialist does not perform bedside patient rounds or coordinate home health nursing handoffs. The UM Specialist is dedicated to payer criteria, prior authorizations, concurrent reviews, and denial management.
• Exam Trap 3: Disease Management vs. Complex Case Management. Disease Management is designed for large populations with a single, specific chronic disease who are managed via standardized protocols. Complex Case Management is indicated for multimorbid, high-utilizer individuals with severe psychosocial and socioeconomic complications requiring tailored, individualized advocacy.
• Exam Trap 4: Screening vs. Comprehensive Assessment. Screening is an automated or high-level process to flag individuals who might need services based on pre-set thresholds. It does not replace the comprehensive biopsychosocial assessment, which is an in-depth, holistic evaluation conducted by the professional case manager.