PDGM 30-Day Period Estimator
*Note: This is a simplified estimation. Actual payments are subject to wage index adjustments, LUPA thresholds, and sequestration.
Understanding the Patient-Driven Groupings Model (PDGM)
The Patient-Driven Groupings Model (PDGM) represents the most significant change to the Home Health Prospective Payment System in decades. Moving away from therapy-volume-driven reimbursement, PDGM focuses on clinical characteristics and patient needs. Our PDGM calculator is designed to help administrators and clinicians understand how different variables impact the final 30-day payment period.
The Five Main Components of PDGM
To accurately project reimbursement, one must understand the five pillars that determine the Home Health Resource Group (HHRG):
- Admission Source: Patients admitted from institutional settings (hospitals, SNFs) generally command higher weights than those from the community.
- Timing: The first 30-day period is classified as "Early," while all subsequent 30-day periods are "Late." Early periods typically result in higher reimbursement.
- Clinical Grouping: Based on the primary diagnosis code, patients are placed into one of 12 clinical groups (e.g., Wounds, Neuro, MMTA).
- Functional Impairment: Determined by OASIS items related to activities of daily living (ADLs), categorized as Low, Medium, or High.
- Comorbidity Adjustment: Secondary diagnoses can trigger a "Low" or "High" adjustment based on specific interactions or individual severity.
Why Move Away from Therapy Volume?
Historically, home health agencies were incentivized to provide more therapy visits to reach higher payment thresholds. PDGM removes this incentive, focusing instead on the patient's actual medical condition. This shift ensures that patients with complex medical needs—who may not require intensive physical therapy—still receive the resources necessary for quality care.
How to Use This Calculator
This tool uses the standard 2024 Base Rate of approximately $2,038.13. By selecting the variables relevant to your specific patient case, the calculator applies a multiplier (Case-Mix Weight) to the base rate. Keep in mind that your actual check from CMS will be adjusted by your local Wage Index, which accounts for the cost of labor in your specific geographic region.
Common Challenges with PDGM
One of the biggest hurdles under PDGM is the LUPA (Low Utilization Payment Adjustment). Each of the 432 HHRG categories has a specific visit threshold (ranging from 2 to 6 visits). If an agency provides fewer visits than the threshold in a 30-day period, they are paid a per-visit rate rather than the full 30-day bundled payment, which often results in a significant financial loss.