The PDGM Revenue Gap: Why Similar Agencies Get Paid More Than You Do

The Patient-Driven Groupings Model (PDGM) fundamentally changed how Medicare reimburses home health agencies. Rather than paying based on volume of services, PDGM places value on patient characteristics, clinical complexity, and timely documentation. This means that agencies who understand and adapt to PDGM can significantly improve both revenue and compliance; while agencies that don’t may leave money on the table.  

Let’s break down how PDGM affects revenue and provide actionable strategies agencies can use to optimize outcomes. 

Short on time? We’ve captured the key takeaways from this article in a 5-minute video designed for home health leaders who want the highlights without the deep dive. 

Understanding PDGM’s Impact on Revenue 

Under PDGM: 

• Each 30-day payment period is placed into one of 432 case-mix groups based on: 
• Admission source (community vs. institutional) 
• Timing (early or late period) 
• Clinical grouping (primary diagnosis category) 
• Functional impairment level 
• Comorbidity adjustment 

These groupings determine the reimbursement rate for each period. Since payment is tied to the clinical profile instead of visit volume, accurate data capture and documentation isn’t just regulatory. It directly affects your bottom line.  

Actionable PDGM Optimization Strategies 

1. Accurate Clinical Grouping Begins at Intake 

Why it matters: 
The primary diagnosis and all meaningful comorbidities define the PDGM grouping, and even small coding differences can change reimbursement.  

Action steps: 

• Use clinician-coder teamwork during intake to confirm accurate ICD-10 codes. 
• Avoid vague or generic diagnoses that may lead to lower payment. 
• Train intake staff to capture all clinically significant comorbidities, when documented and supported, to maximize the case-mix comorbidity adjustment.  

💡 Real-Life Example: At Agency A, intake nurses review diagnoses with coders before OASIS SOC. This alignment reduced miscoded groupings by 30% and increased average payment per episode. 

2. Timely & Accurate OASIS Completion Is Non-Negotiable 

Why it matters: 
OASIS assessments influence both functional impairment and many case-mix elements. Errors or late submissions can reduce reimbursement or trigger denials.  

Action steps: 

• Ensure clinicians complete the OASIS within regulatory timing windows and with all required domains addressed. 
• Provide structured training on accurate GG functional scoring and documentation defensible in an audit. 
• Use internal checklists before finalizing OASIS to catch common errors. 

💡 Real-Life Workflow: Create a “OASIS Accuracy Checklist” used by clinicians at the end of each assessment to confirm key items (GG items, co-morbid conditions, cognitive status) are correctly captured. 

3. Therapy Tracking Without Over-Utilization – Quality Over Quantity 

Under PDGM therapy volume does not drive payment. Instead, reimbursement reflects the patient’s clinical complexity and needs.  

Action steps: 

• Establish clear therapy goals tied to clinical need versus blanket visit counts. 
• Communicate with therapists to ensure therapy documentation supports the primary diagnosis and care plan. 
• Track therapy visits consistently throughout the 30-day period to avoid LUPAs (Low Utilization Payment Adjustments) that can cut revenue if visits are too few.  

💡 Real-Life Example: Agency B implemented weekly therapy utilization huddles. Teams reviewed current visit counts against expected patterns and adjusted scheduling in real time, reducing LUPA events by 18%. 

Leveraging Analytics: SimiTree Compass as a Strategic Resource 

To make PDGM work smarter, not harder, data insight is one of the most powerful assets your agency can adopt. 

SimiTree Compass provides real-time, predictive analytics that helps agencies anticipate and optimize care delivery under PDGM. 

Key benefits include:  

• Visit Utilization Benchmarks: See national standard visit levels by discipline for patient profiles similar to yours; useful for planning clinically appropriate care that also aligns with payment expectations.  
• LUPA and Recertification Predictions: Identify the likelihood of a second care period or a low utilization adjustment, enabling proactive adjustments.  
• Care Planning Support: Get analytics early, even before the OASIS is fully locked, to guide resource allocation and visit schedules.  

📌 How Agencies Can Use It: A clinical manager might use Compass insights at the start of care to tailor visit mix and timing based on predicted standard utilization, reducing financial risk and improving care consistency. 

In short: Tools like Compass help bridge the gap between clinical delivery and financial performance, keeping decisions data-driven rather than guesswork. 

Best Practices for Sustained PDGM Success 

• Internal Audits: Conduct regular chart and billing audits to catch documentation gaps before claims go out.  
• Ongoing Training: Invest in continuous education for clinicians, intake staff, and billers on PDGM updates and documentation best practices.  
• Performance Dashboards: Use operational dashboards to track case-mix accuracy, visit utilization, and claim outcomes weekly. 

Conclusion: Turn PDGM Into Your Competitive Edge 

PDGM is no longer new — but many agencies still struggle to connect documentation accuracy with reimbursement outcomes. By tightening workflows, investing in education, and using data analytics tools like SimiTree Compass, your agency can deliver compliant, high-quality care while maximizing revenue. The key is an intentional process that starts at intake, flows through OASIS and therapy tracking, and continues with real-time analytics and continual improvement.