Medicaid Home Care Coverage: HCBS Waivers and State Plan Services
Medicaid funds home and community-based care through two parallel legal structures: mandatory and optional State Plan services authorized under Title XIX of the Social Security Act, and Home and Community-Based Services (HCBS) waivers granted under Section 1915 of that statute. Understanding the boundary between these structures determines which populations are served, which services are covered, and how states design eligibility rules. This page maps both coverage tracks, the federal rules that govern them, and the classification distinctions that affect access to home health aide services, skilled nursing at home, and other community-based supports.
- Definition and scope
- Core mechanics or structure
- Causal relationships or drivers
- Classification boundaries
- Tradeoffs and tensions
- Common misconceptions
- Checklist or steps (non-advisory)
- Reference table or matrix
- References
Definition and scope
Medicaid home care coverage encompasses any service delivered in a residential or community setting that Medicaid pays for under approved State Plans or federally approved waivers. The legal foundation is Title XIX of the Social Security Act (42 U.S.C. § 1396 et seq.), administered federally by the Centers for Medicare & Medicaid Services (CMS).
Two broad service tracks exist under this framework:
State Plan services are those a state must or may offer to all categorically eligible Medicaid beneficiaries who meet clinical criteria. Home health services — including part-time or intermittent nursing and home health aide visits — are a mandatory State Plan benefit under 42 C.F.R. Part 440. Personal care services and private duty nursing are optional State Plan benefits that states may elect to include.
HCBS waivers permit states to waive certain Medicaid rules — particularly the comparability requirement that services be offered statewide to all eligible individuals — in order to target community-based services to specific populations who would otherwise require institutional-level care. The primary waiver authority is Section 1915(c) of the Social Security Act, though 1915(i), 1915(j), and 1915(k) authorities provide distinct variants.
The aggregate scope is substantial. As of federal fiscal year 2022, HCBS spending across all waiver and State Plan authorities exceeded $119 billion (CMS Medicaid HCBS Expenditure Data, FY 2022), representing more than half of all long-term services and supports (LTSS) spending within Medicaid.
Core mechanics or structure
State Plan home health benefit
Under 42 C.F.R. § 440.70, mandatory State Plan home health covers: part-time or intermittent nursing services, home health aide services, and medical supplies and equipment suitable for use in the home. States must cover these for any Medicaid-eligible individual who is entitled to nursing facility services under the State Plan and who requires home health services. A physician must order services, and a plan of care must be established and reviewed at least every 60 days.
Optional State Plan personal care services
Personal care services (PCS) are authorized under 42 C.F.R. § 440.167 as an optional benefit. PCS assists individuals with activities of daily living (ADLs) such as bathing, dressing, and mobility. Unlike skilled home health, PCS does not require physician orders in all states, though functional assessment is universal. Because PCS is optional, coverage design varies substantially by state.
Section 1915(c) HCBS waivers
Section 1915(c) waivers are the primary mechanism through which states provide extensive community-based alternatives to institutional placement. CMS must approve each waiver, which includes:
- Target population definition: States specify a discrete group (e.g., individuals with intellectual disabilities, adults with physical disabilities, adults aged 65+) who meet an institutional level of care (LOC) standard.
- Waiver services: States may include services not available under the standard State Plan — including adult day health, supported employment, environmental modifications, and non-medical transportation — provided services are not otherwise federally reimbursable.
- Cost neutrality: The average per-capita cost of waiver services plus administrative costs cannot exceed the average per-capita cost the state would have spent for the same population in an institutional setting. This is calculated over the waiver period per CMS HCBS waiver application instructions.
- Waiver caps: States may limit enrollment via an unduplicated participant cap approved in the waiver.
Alternate HCBS authorities
- 1915(i): Allows states to offer HCBS through the State Plan (no waiver required), without an institutional LOC requirement, subject to income and functional eligibility criteria. Enrollment cannot be capped.
- 1915(j): Self-directed personal assistance services authority, enabling individuals to hire, train, and manage their own attendants.
- 1915(k): Community First Choice (CFC) option, which provides attendant care and related services at an enhanced Federal Medical Assistance Percentage (FMAP) of 6 percentage points above the standard match rate (42 C.F.R. Part 441, Subpart K).
Causal relationships or drivers
The growth of Medicaid HCBS is driven by three convergent forces: litigation, federal policy incentives, and documented cost differentials.
Olmstead v. L.C. (527 U.S. 581, 1999) established under the Americans with Disabilities Act that unjustified institutionalization constitutes discrimination. States became legally obligated to provide community-based services to eligible individuals who could benefit from them and did not oppose such placement. This ruling directly accelerated 1915(c) waiver expansion across 50 states and the District of Columbia.
Federal financial incentives reinforce state adoption. The Community First Choice option under 1915(k) pays states an enhanced FMAP — a structural incentive that reduces the state share of costs when offering attendant care in home settings. The Money Follows the Person (MFP) demonstration, first authorized under the Deficit Reduction Act of 2005 and extended through the Consolidated Appropriations Act of 2023, provides additional enhanced match for transitioning individuals from institutions to community settings (CMS MFP Program).
Cost differential evidence further drives policy. CMS analysis and state actuarial submissions consistently show that annual per-capita HCBS waiver costs are lower than nursing facility costs for comparable populations in most states, reinforcing the cost-neutrality logic embedded in 1915(c) waiver design.
Workforce shortages in home care create a countervailing pressure. The Bureau of Labor Statistics projects home health and personal care aide employment will grow 22 percent from 2022 to 2032 (BLS Occupational Outlook Handbook), but wages and retention challenges constrain service delivery capacity regardless of coverage policy.
Classification boundaries
The distinction between Medicaid HCBS coverage tracks is not merely administrative — it governs which individuals receive services, at what level, and with what continuity.
Institutional level of care (LOC) requirement: Section 1915(c) waivers require that enrolled individuals meet the LOC standard for a specific institution type (nursing facility, ICF/IID, or hospital). States use standardized assessment tools to document LOC. Individuals who do not meet LOC do not qualify for 1915(c) waivers, regardless of functional need.
Statewide availability vs. targeting: State Plan services must be available statewide to all categorically eligible individuals meeting clinical criteria. HCBS waivers may target specific geographic regions or populations, and may impose enrollment caps.
Service type eligibility: Medical services such as skilled nursing at home or home infusion therapy may be covered under either track, but services like supported employment, adult day habilitation, or home modifications are available only through waivers or state plan amendments that elect those benefits.
Self-direction: Under 1915(j) and certain 1915(c) waivers with self-direction components, individuals may act as their own employer of record for personal attendants. Not all waivers include this option, and eligibility for self-direction within a waiver is a separate determination from waiver enrollment.
Beneficiaries enrolled in Managed Care Organizations (MCOs) under 1915(b) waivers receive HCBS through managed care contracts rather than fee-for-service, adding a contractual layer to the coverage structure that can affect home care reimbursement models.
Tradeoffs and tensions
Waitlists and enrollment caps
The most structurally contested feature of 1915(c) waivers is the legal permission to cap enrollment. Unlike entitlement-based State Plan services, waiver services are not an individual entitlement. As of 2024 data compiled by KFF (formerly Kaiser Family Foundation), more than 650,000 individuals were on HCBS waiver waitlists nationally (KFF Medicaid Home and Community-Based Services). This creates a two-tier access structure: those enrolled receive robust community services; those on waitlists may have only State Plan home health available.
Cost neutrality vs. comprehensiveness
The cost-neutrality test for 1915(c) waivers limits the average per-capita expenditure per enrollee. This creates an actuarial ceiling that can restrict the intensity or breadth of services, particularly for individuals with high-cost needs. States must balance fiscal compliance with clinical adequacy — a tension that surfaces in waiver renewal negotiations with CMS.
HCBS settings rule compliance
CMS published the HCBS Settings Rule in 2014 (79 Fed. Reg. 2948), requiring that HCBS be delivered in settings that are integrated in and support access to the greater community. Settings that are institutional in character — regardless of physical location — risk decertification. States faced compliance deadlines and remediation requirements that introduced friction between existing provider networks and federal standards.
Institutional bias in Medicaid funding
Despite HCBS growth, structural funding patterns historically favored institutional care because nursing facility services are a mandatory Medicaid benefit while most HCBS are optional. This asymmetry means states can reduce HCBS funding in budget shortfalls while nursing facility obligations remain. Advocates and CMS have noted this tension in the context of home care quality measures and ongoing policy reform discussions.
Common misconceptions
Misconception: Medicaid always covers home care for eligible individuals.
Correction: State Plan home health is an entitlement for eligible individuals meeting clinical criteria. However, HCBS waiver services are not an individual entitlement. Enrollment may be capped, and individuals may be placed on waitlists indefinitely without violating Medicaid law.
Misconception: HCBS waivers are the same across all states.
Correction: Each state designs its own 1915(c) waivers, subject to CMS approval. A service covered in one state's intellectual/developmental disabilities waiver may not exist in another state's waiver at all. The 50 states and DC operate more than 300 distinct 1915(c) waivers simultaneously (CMS Waiver Applications Database).
Misconception: HCBS coverage eliminates the need for Medicare home health.
Correction: Medicare home health (under 42 C.F.R. Part 484) covers skilled, intermittent services following qualifying events, while Medicaid HCBS covers long-term supports including personal care and habilitation. Dual-eligible individuals may access both, but the programs serve different clinical purposes and operate under different homebound and eligibility criteria. The Medicare home health benefit comparison provides additional structural detail.
Misconception: Personal care services under Medicaid require a physician order.
Correction: PCS under the State Plan (42 C.F.R. § 440.167) does not federally require physician oversight, though states may impose additional conditions. This distinguishes PCS from mandatory home health services, which do require physician-ordered plans of care.
Misconception: Self-direction is available in all Medicaid HCBS waivers.
Correction: Self-direction is an option, not a mandate. States must offer self-direction under Community First Choice (1915(k)) and may include it in 1915(c) waivers, but standard 1915(c) waivers without explicit self-direction provisions do not permit beneficiaries to act as employer of record.
Checklist or steps (non-advisory)
The following sequence reflects the administrative stages an individual typically encounters when accessing Medicaid HCBS coverage. This is a structural description of process phases, not guidance.
Stage 1 — Medicaid eligibility determination
- Financial eligibility assessed against Modified Adjusted Gross Income (MAGI) or SSI-related income/asset rules, depending on the eligibility category
- Categorical eligibility determined (aged, blind, disabled, or other covered group)
- State Medicaid agency makes eligibility determination per 42 C.F.R. Part 435
Stage 2 — Functional/clinical assessment
- Standardized level-of-care assessment administered (tool varies by state and waiver type)
- For 1915(c) waivers: institutional LOC standard must be documented
- For State Plan home health: physician order and plan of care established per 42 C.F.R. § 440.70
- OASIS assessment required for certified home health agencies receiving Medicare/Medicaid reimbursement
Stage 3 — Waiver enrollment or State Plan authorization
- If seeking waiver services: application submitted to designated state waiver agency (often separate from main Medicaid agency)
- Enrollment cap checked; if cap reached, individual placed on waitlist
- If seeking State Plan home health: authorization issued by state Medicaid program or MCO upon clinical review
Stage 4 — Service plan development
- Plan of care developed with input from beneficiary, caregivers, and clinical assessors
- For self-directed programs: employer-of-record agreements executed; budget authority established
- Services matched to enrolled provider network
Stage 5 — Provider assignment and service initiation
- Certified home health agency or waiver provider assigned based on network availability and beneficiary choice
- Background checks on direct care workers confirmed per 42 C.F.R. § 431.107 and state-specific requirements
- Services begin according to authorized units and service plan
Stage 6 — Ongoing monitoring and reassessment
- Periodic reassessment of functional status