Case Rate
A case rate is a fixed payment negotiated with a payer that covers all home health services for a defined case, usually an episode of set length, no matter how many visits the agency delivers. It is a common alternative to per-visit payment in Medicare Advantage and commercial contracts. Because case rates transfer utilization risk to the agency, pricing them requires reliable cost and utilization data.
How case rates work
The contract defines the unit: what counts as a case, how long it runs, which disciplines and services are included, and what triggers a new case versus a continuation. A typical structure pays one amount for a 30- or 60-day home health episode covering all visits and routine supplies. The details carry the risk. Does a hospital readmission end the case or pause it? Are high-cost items like wound care supplies carved out? What happens when the patient needs care beyond the defined period? Agencies should read a case rate contract as a risk document first and a rate sheet second.
Case rate vs. Medicare episodic payment
Medicare's episodic payment under PDGM adjusts the price for patient acuity through 432 case-mix groups, drops to per-visit payment below the LUPA threshold, and adds outlier payments for extreme cost. A commercial case rate usually has none of that machinery. It is often one flat amount for every patient the plan sends, which exposes the agency to adverse selection: if the plan's referrals skew sicker than the average used to price the deal, every case loses money. Negotiating acuity tiers, outlier provisions, or carve-outs for defined high-cost scenarios rebuilds some of the protection Medicare's model provides automatically.
Pricing a case rate
Sound pricing starts with your own history: expected visits by discipline for the population in question, multiplied by fully loaded cost per visit, plus supplies, plus target margin. Two refinements matter. First, use the distribution, not just the average, because case rates pay the average while costs arrive one patient at a time. A population where 15 percent of cases run heavy can erase the margin on the rest. Second, model the specific referral source. A plan steering post-surgical rehab patients prices very differently from one steering complex chronic patients. If the payer cannot describe the population, price defensively or negotiate a risk corridor.
Common pitfalls
The recurring case rate mistakes:
- Accepting a flat rate for a population with highly variable acuity and no outlier protection
- Vague definitions of when a case ends, letting long-stay patients run indefinitely on one payment
- No terms for readmissions, transfers, or early discharge
- Silence on whether additional authorized services create additional payment
- No annual escalator, so wage inflation eats the margin year over year
Track actual cost against the rate for every case from day one. A case rate that looked fine in negotiation can fail quietly within two quarters.
Frequently asked questions
How is a case rate different from an episodic payment?
Both pay a fixed amount for a period of care. Medicare's episodic payment adjusts for acuity through case-mix and includes LUPA and outlier protections. A commercial case rate is usually a flat negotiated amount without those adjustments, so the agency carries more risk unless the contract adds protections.
When does a case rate favor the agency?
When the agency knows its costs and utilization better than the payer does, manages visits efficiently, and serves a population consistent with pricing assumptions. Efficient agencies can earn more under a case rate than per-visit payment for the same patients.
What should we ask before signing a case rate contract?
Ask how the case is defined and ended, what population will be referred, whether there are acuity tiers or outlier provisions, how readmissions and transfers are handled, and whether the rate escalates annually. If those answers are vague, the risk sits with you.