Care Coordination and Case Management in Healthcare

Care coordination and case management are structured clinical and administrative functions that organize patient care across providers, settings, and time. This page covers how these functions are defined under federal program standards, how they operate in practice across different care settings, and where the boundaries lie between coordination, management, and direct clinical care. These functions are central to chronic disease management, value-based care models, and integrated delivery across the broader US healthcare system.

Definition and scope

Care coordination is defined by the Agency for Healthcare Research and Quality (AHRQ) as the deliberate organization of patient care activities between two or more participants involved in a patient's care to facilitate appropriate delivery of health services. Case management is a related but distinct function: the Case Management Society of America (CMSA) defines it as a collaborative process of assessment, planning, facilitation, care coordination, advocacy, and evaluation to meet an individual's comprehensive health needs through communication and available resources.

The distinction between the two is operationally significant. Care coordination is typically embedded within a care team or clinical workflow — it occurs at the encounter or episode level. Case management, by contrast, is a population-level and longitudinal function, often assigned to a designated case manager who follows a patient across multiple providers, payers, and time periods.

Federal regulatory scope extends across both functions. The Centers for Medicare & Medicaid Services (CMS) recognizes care coordination as a billable service category under the Current Procedural Terminology (CPT) code set, including Chronic Care Management (CCM) codes (99490–99491) and Transitional Care Management (TCM) codes (99495–99496). These codes carry specific time, documentation, and consent requirements established in the CMS Physician Fee Schedule (CMS Physician Fee Schedule).

Medicaid programs, governed by Title XIX of the Social Security Act, are required to cover case management services as an optional benefit under 42 CFR § 440.169, which defines targeted case management and establishes state-level implementation parameters (eCFR § 440.169).

How it works

Both care coordination and case management operate through a structured process. The following breakdown reflects the framework described by CMSA and aligned with CMS program requirements:

  1. Identification and referral — Patients are identified through risk stratification, provider referral, or utilization flags (e.g., high emergency department use, multiple chronic conditions, recent hospitalization).
  2. Assessment — A comprehensive assessment is conducted, covering medical history, functional status, psychosocial factors, and social determinants of health such as housing stability, food access, and transportation.
  3. Care planning — A written care plan is developed in collaboration with the patient, caregivers, and the care team. CMS requires that CCM services include a documented, patient-centered care plan accessible to all treating practitioners.
  4. Implementation and facilitation — The coordinator or case manager facilitates referrals, follow-up appointments, authorization processing (see prior authorization explained), and communication between providers.
  5. Monitoring and reassessment — Ongoing contact is maintained, typically monthly for CCM-enrolled patients (minimum 20 minutes of clinical staff time per month under CPT 99490), with reassessment of the care plan at defined intervals.
  6. Transition support — At care transitions — particularly hospital discharge — TCM codes apply. CPT 99496 covers face-to-face contact within 7 days of discharge for high-complexity patients.
  7. Closure or continuation — Case management episodes are closed when goals are met, the patient declines services, or the patient transitions to a different care setting such as palliative care and hospice.

Electronic health records serve as the primary infrastructure for care plan documentation, inter-provider communication, and audit compliance under both Medicare and Medicaid program requirements.

Common scenarios

Care coordination and case management appear across distinct clinical and payer contexts, each with different structural features:

Medicare chronic care management — Applied to patients with 2 or more chronic conditions expected to last at least 12 months. Billing requires documented patient consent, a comprehensive care plan, and 24/7 access to a care team member. CMS reported that CCM participation expanded significantly after code reimbursement was established in the 2015 Physician Fee Schedule.

Medicaid targeted case management — States may limit targeted case management to defined populations, including individuals with serious mental illness, developmental disabilities, or HIV/AIDS. Services are reimbursed at a per-member-per-month or per-contact rate depending on state plan design (Medicaid.gov, Case Management).

Hospital discharge and transitional care — Transitional care management addresses the 30-day post-discharge window, a period associated with elevated readmission risk. The Hospital Readmissions Reduction Program (HRRP) under Section 3025 of the Affordable Care Act imposes financial penalties on hospitals with excess readmissions for conditions including heart failure, pneumonia, and hip/knee arthroplasty (CMS HRRP).

Behavioral health integration — For patients with co-occurring mental health and medical conditions, care coordination takes on added complexity. Behavioral health integration models, including the Collaborative Care Model (CoCM), use a defined team structure — primary care provider, behavioral health care manager, and psychiatric consultant — with CMS billing codes 99492–99494.

Pediatric and geriatric populations — Pediatric healthcare services rely on care coordination for children with special health care needs (CSHCN), a population defined by the Maternal and Child Health Bureau. Geriatric healthcare services frequently involve case management through Area Agencies on Aging under the Older Americans Act.

Decision boundaries

Several functional boundaries determine whether a service qualifies as care coordination, case management, or something outside both categories:

Care coordination vs. case management — Care coordination is generally episodic and team-embedded; case management is longitudinal and typically assigned to a named individual. A nurse following up on a lab result is performing care coordination. A social worker managing a patient's housing, medication adherence, and specialist schedule over 6 months is performing case management.

Coordination vs. direct clinical care — Care coordinators do not diagnose, prescribe, or perform procedures. These boundaries are regulated by state scope-of-practice laws, which vary by license type and state (medical licensing by state).

Billable vs. non-billable coordination — Not all coordination activity is reimbursable. CMS CCM codes require that services be provided by clinical staff under physician supervision. Administrative scheduling or phone message relay does not meet the clinical-time threshold.

Accreditation standards — The National Committee for Quality Assurance (NCQA) sets accreditation standards for case management programs through its Case Management Accreditation program, which evaluates program structure, staff qualifications, and care plan processes. The Joint Commission also includes care coordination expectations within its hospital accreditation standards (The Joint Commission).

Risk classification — Case management programs often use validated risk stratification tools (e.g., the LACE Index for readmission risk, the Hierarchical Condition Category [HCC] model used by CMS for risk adjustment) to prioritize enrollment. The HCC model directly links diagnostic coding accuracy to care management resource allocation under Medicare Advantage (CMS HCC Model).

Healthcare quality measures tracked by CMS and NCQA — including HEDIS measures for care transitions and chronic condition follow-up — serve as the external validation layer for whether coordination and case management functions are producing measurable outcomes.

References

📜 3 regulatory citations referenced  ·  ✅ Citations verified Feb 25, 2026  ·  View update log

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