Home Care Reimbursement Models: PDGM, Fee-for-Service, and Value-Based Payment

How a home health agency gets paid shapes almost every clinical and operational decision it makes — which patients it accepts, how many visits it schedules, and whether a nurse shows up on day three or day ten. Three payment models dominate the Medicare-certified home health landscape: the Patient-Driven Groupings Model (PDGM), traditional fee-for-service, and the emerging category of value-based payment arrangements. Understanding how they differ helps families, clinicians, and policymakers make sense of why home care delivery looks the way it does.

Definition and scope

Fee-for-service is the oldest framework: an agency bills a set rate for each visit or service unit delivered, and the payer reimburses accordingly. More visits equal more revenue, which created documented incentives to over-schedule care regardless of patient need — a pattern the Centers for Medicare & Medicaid Services (CMS) spent two decades trying to correct.

PDGM replaced the previous Prospective Payment System (PPS) for Medicare-certified home health agencies on January 1, 2020 (CMS, Home Health Prospective Payment System). Rather than paying per visit, PDGM pays a fixed episodic rate for each 30-day period of care, adjusted by a patient's clinical characteristics, functional status, and comorbid conditions. A single patient stay is divided into sequential 30-day periods, each billed separately, each carrying its own rate-adjustment variables.

Value-based payment (VBP) connects reimbursement to measurable outcomes. CMS runs the Home Health Value-Based Purchasing (HHVBP) Model, which — after a mandatory national expansion effective January 1, 2023 — adjusts Medicare payments to certified agencies by up to ±5% based on quality metrics including hospitalization rates, patient satisfaction scores, and functional improvement measures (CMS HHVBP Model).

These three models are not mutually exclusive. A Medicare-certified agency operates under PDGM for episodic billing while simultaneously subject to HHVBP adjustment multipliers. Private-pay and Medicaid populations, discussed at length on home care costs and pricing, may still encounter fee-for-service structures or managed care rate schedules entirely outside the Medicare framework.

How it works

PDGM rate-setting follows a layered logic:

1. Admission source — Community versus institutional (hospital, skilled nursing facility) admission carries different base rates, reflecting the assumption that post-acute patients typically require more intensive early care.
2. Timing — The first 30-day period is classified "early"; subsequent periods are "late," with lower base payment rates.
3. Clinical grouping — Diagnoses map to one of 12 clinical groupings (e.g., musculoskeletal rehabilitation, neuro/stroke rehabilitation, complex nursing interventions).
4. Functional impairment level — Low, medium, or high functional status — derived from OASIS assessment data — adjusts the rate further.
5. Comorbidity adjustment — Principal and secondary diagnoses that drive additional resource use trigger a comorbidity payment bump.

The resulting payment can range substantially across patient profiles. An early-episode, institutionally admitted patient with a complex nursing diagnosis and high functional impairment will generate a markedly higher 30-day rate than a late-episode community-admitted patient with a musculoskeletal condition and low functional impairment — even if both patients received identical visit counts.

Fee-for-service calculates differently: multiply approved visits by the contracted rate per discipline. Skilled nursing at home visits, physical therapy at home, and home health aide services each carry distinct per-visit rates in fee-for-service contracts. The administrative simplicity is real; the misaligned incentives are also real.

HHVBP adjustments are calculated annually, comparing an agency's performance on 15 measures against a baseline and against peer agencies nationally. Agencies in the top performance tier receive a positive payment adjustment; those in the lowest tier face a reduction. The ±5% maximum adjustment represents a meaningful revenue swing for agencies operating on margins that typically fall between 2% and 5% (MedPAC Report to Congress, March 2023).

Common scenarios

The payment model a patient encounters depends heavily on payer type and setting:

Medicare-certified, skilled care need: A patient discharged from a hospital after hip replacement and referred to post-surgical home care will be billed under PDGM, with the agency receiving a fixed 30-day rate adjusted for the institutional admission source and orthopedic clinical grouping. The number of physical therapy visits does not change the base payment — which is the entire structural point.

Medicaid waiver, personal care: A Medicaid beneficiary receiving personal care and custodial services through a state Home and Community-Based Services (HCBS) waiver will almost always encounter an hourly fee-for-service rate, negotiated between the state and the provider. Rates vary by state — California's In-Home Supportive Services (IHSS) program pays different hourly rates than Texas's Community Attendant Services program.

Private pay, companion services: Families paying out of pocket for companion and homemaker services pay agency-set hourly rates, typically between $25 and $35 per hour nationally, with no PDGM or HHVBP involvement whatsoever.

Managed care Medicare Advantage: Medicare Advantage plans contract independently with home health agencies and may use per-visit, per-diem, or episode-based rates that differ substantially from traditional Medicare PDGM rates.

Decision boundaries

Choosing which model applies is not optional for agencies or payers — it is determined by patient eligibility, payer type, and licensure. However, the model in place has downstream effects that families navigating how to choose a home care agency should understand.

Under PDGM, agencies face financial pressure to manage visit intensity carefully across the 30-day period. A high-cost patient who requires 20 visits in 30 days and a low-cost patient who requires 6 visits generate the same base payment if their clinical grouping and functional classification are identical. This creates legitimate efficiency incentives — and, if poorly managed, risk of underservice in complex cases.

Under fee-for-service, the inverse risk applies: visit volume drives revenue, so the structural incentive tilts toward more visits rather than better outcomes. Value-based payment attempts to rebalance this by tying a portion of total reimbursement to whether patients actually improve — whether they return to the hospital less, walk farther, report higher satisfaction.

Families evaluating agencies should ask directly about the payer mix an agency serves and whether the agency participates in HHVBP performance reporting. Agencies required to report quality data publicly do so through the CMS Care Compare tool, where star ratings and specific quality measures are accessible for every Medicare-certified home health agency in the country. That transparency is one place where the architecture of payment models becomes directly visible to the people receiving care — not just the people billing for it.