Jump to a section
Key takeaways
- Match payment reports to the relevant payer and period.
- Review grouping inputs with qualified clinical and billing staff.
- Keep payment classification separate from needed care.
Why the grouping model matters to a buyer
Two agencies with similar visit totals can have different underlying payment records. Begin with the payer and the population being measured. Then ask how the report links each payment period to the claim and records behind it. A monthly revenue total cannot explain every group or payment change within it.
CMS describes PDGM as using clinical characteristics and other patient information to group thirty-day home-health periods. Its five broad dimensions are admission source, period timing, clinical grouping, functional impairment and comorbidity adjustment. These inputs help group periods of care. They are not a checklist for choosing more profitable patients. (Source: CMS PDGM overview)
Separate payment from the plan of care
The CMS home-health overview distinguishes thirty-day payment periods from sixty-day certification and care-plan review. It also explains that assessment and claims information support the payment classification. Keep those records linked. They still serve different purposes. (Source: CMS Home Health PPS)
Care must follow the patient's needs and the care team's plan. CMS describes a plan identifying needed services, responsible disciplines, and visit frequency and duration. A buyer's revenue model is not a reason to change that plan. (Source: CMS MLN, home-health Plan of Care section)
A fictional two-period review
Assume a fictional workpaper places two successive thirty-day payment periods beside one sixty-day certification interval. This example links documents. It does not set billing dates or decide whether care is covered.
| Workpaper row | Evidence to reconcile |
|---|---|
| First payment period | Dates, grouping inputs and claim status for that period |
| Second payment period | Its own dates, grouping inputs and claim status |
| Certification and care plan | Applicable assessment, review and patient-specific service records |
The second payment row should not simply copy the first row's payment assumption. Ask trained reviewers to explain the group assigned to each period and any changes. Filling in this table does not decide payment or needed care.
Follow the payment question
The LUPA definition covers a specific per-visit adjustment. Payer mix identifies which reimbursement arrangements matter, while AR aging follows amounts still outstanding. Use the home-health diligence guide for the wider acquisition review.
The case-mix example shows how a weighted index depends on its model, population and counting rule. It does not supply PDGM weights.
Frequently asked questions
Is PDGM used for every home-care business?
No. This definition concerns Medicare fee-for-service home-health payment. Private-pay personal care, Medicaid services and other payer arrangements need their own review. The business name does not tell you how it is paid.
Is the payment period the same as the certification period?
No. CMS describes thirty-day payment periods and a separate sixty-day certification and care-plan review framework, with more frequent plan review when appropriate. Do not use a payment-period label to decide when clinical review is needed.
Does a case-mix group establish the cash collected?
No. A grouping report is one part of payment review. Check the rules for the period, claim status, changes and receipts. This definition does not calculate what the agency will be paid.
How is PDGM related to LUPA?
LUPA concerns per-visit payment when a thirty-day period falls below its applicable case-mix visit threshold. Use the linked LUPA definition for that adjustment. Neither the group nor its threshold replaces the patient-specific plan of care.
Sources
Sources are dated to distinguish current guidance from earlier publications. They support the identified facts; the transaction questions and examples are educational analysis.
- CMS: Home Health Patient-Driven Groupings Model (2026). Retrieved September 7, 2026.
- CMS: Home Health Prospective Payment System (2026). Retrieved September 5, 2026.
- CMS MLN: Medicare Payment Systems (2026). Retrieved September 7, 2026.