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MedPAC is starting an exploratory study of whether Medicare’s home health payment system, PDGM, accurately reflects patient care costs. Analysts will examine patient selection and coding patterns, with results expected to begin appearing in fall 2027.
The Medicare Payment Advisory Commission is launching an exploratory study of whether Medicare’s Patient-Driven Groupings Model (PDGM) accurately aligns home health payments with patient care costs. Analysts will examine patient selection and coding practices that could raise payments without corresponding increases in patient complexity, according to a presentation at a Friday meeting.
MedPAC analysts plan to study data on home health and skilled nursing facility payments, looking at how patients are selected and how their conditions are coded. The commission’s analyst Evan Christman said the work is exploratory, while noting concerns among stakeholders about patient selection in home health. MedPAC advises Congress on Medicare and is nonpartisan.
Analyst Carol Carter said the study will assess whether high- and low-profit case-mix groups are distributed unevenly among providers. Any differences could reflect local market conditions or provider capabilities, she said; an uneven distribution would not, by itself, establish inappropriate behavior. Researchers will also consider whether coding changes represent actual differences in patient complexity or documentation practices that increase payments.
For patients with a preceding hospital stay, researchers intend to compare home health and skilled nursing facility coding with the coding recorded during the hospitalization. They also plan to compare changes in assessment items used to set payments with changes in items not used for payment. Carter said that difference could offer an indication of shifts in coding practices. MedPAC plans to begin presenting findings in fall 2027.
How Payment Accuracy Affects Providers
The study could inform congressional scrutiny of whether Medicare home health payments track the care patients need. Findings could also affect future debate over how payment rules account for patient characteristics and provider differences. The stated research questions are not findings: MedPAC has not concluded that providers are selecting patients inappropriately or that coding is inflating payments.
The issue has immediate policy relevance because CMS’s proposed 2027 home health payment rule included a temporary 3% adjustment tied to the agency’s effort to recoup what it considers PDGM-related overpayments. The home health community broadly criticized that proposed adjustment, according to the report. MedPAC’s study is separate from CMS’s payment-rule process, but evidence about payment accuracy may shape debate over the model and potential adjustments.
MedPAC Commissioner Kenny Kan raised a related concern about the use of artificial intelligence in coding and revenue-cycle management. His warning was a concern expressed at the meeting, not a finding of the study. Whether AI tools are affecting coding intensity or payment levels is among the broader questions that require evidence.
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Why MedPAC Is Reviewing PDGM Now
PDGM was introduced as a way to group home health patients and set payment levels based more on patient characteristics. The 2020 revisions to the health payment systems removed therapy-based incentives, following a MedPAC recommendation, Christman said. The new systems rely more heavily on patient characteristics to determine payments.
Before PDGM took effect, industry participants differed over how disruptive it would be, including whether it would create cash-flow pressures for providers. Christman said several years of data are now available and providers have had time to adjust, making this a useful point to evaluate the model. He also said the probability of someone using home health in the latest cycle had not changed significantly in 2023 compared with 2019.
Some stakeholders believe the system favors patients admitted after a hospital stay over those admitted from the community, Christman said. The study is intended to examine such questions rather than assume that the payment model or provider practices are responsible for any observed differences.
“I worry that many health systems and providers are way ahead of health plans in using AI to augment inappropriate coding intensity or reported patient complexity to optimize revenue cycle management.”
— Kenny Kan, MedPAC commissioner
Medicare home health payment tools
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Questions the Study Must Answer
MedPAC has not yet reported results, and the study’s findings will not begin to be presented until fall 2027. It remains unclear whether analysts will find payment differences associated with patient selection, coding practices, provider capabilities, or local market characteristics—or whether observed differences will reflect changes in patients’ actual needs.
The source material does not specify the full study design, data period, size of the datasets, or how analysts will distinguish documentation changes from genuine changes in patient complexity. It also does not say whether the study will evaluate AI use directly. Kan’s comments identify a concern, but do not establish that AI has caused inappropriate coding or higher payments.
The proposed 3% adjustment is a CMS policy action tied to the agency’s view of PDGM-related overpayments; it is not evidence that MedPAC’s study has confirmed those overpayments. The final policy status and any later payment changes are not detailed in the material provided.
patient assessment forms for home health
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MedPAC Results Expected in 2027
MedPAC analysts will conduct the planned comparisons and begin presenting results in fall 2027. The source does not provide a more specific release date, a timetable for completing the study, or details about whether the commission will make recommendations alongside its findings.
Until then, the key development is the start of the review, not a determination that PDGM payments are inaccurate. CMS’s proposed payment adjustment and the commission’s research remain distinct developments. Readers will be able to assess the study’s implications once MedPAC publishes evidence on patient mix, coding patterns, and payment relationships.
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Key Questions
What is MedPAC studying?
MedPAC is examining whether PDGM home health payments align with patient care costs, including whether patient selection and coding patterns affect payment levels.
Has MedPAC found that PDGM overpays providers?
No such finding was reported. The study is described as exploratory, and its results have not yet been presented.
When will MedPAC present results?
MedPAC plans to begin presenting results in fall 2027. No more specific date or completion schedule was provided.
Is the study the same as CMS’s proposed 3% adjustment?
No. CMS’s proposed 3% temporary adjustment is tied to the agency’s effort to recoup what it considers PDGM-related overpayments. MedPAC’s study is a separate review of payment accuracy.
Will the study determine whether AI is changing home health coding?
The material says a commissioner raised concerns about AI use, but does not confirm that analysts will directly evaluate AI or that it has affected coding. That question remains unresolved.
Source: rss
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