Data Viewers Overview¶
The Data Viewers section provides comprehensive access to CMS (Centers for Medicare & Medicaid Services) datasets that power the Prospective payment calculation engine.
Available Data Viewers¶
📋 Fee Schedules¶
Browse and search Medicare fee schedules including: - Physician Fee Schedule (PFS) - Professional services and procedures - Clinical Laboratory Fee Schedule - Laboratory test pricing - Durable Medical Equipment (DME) - DME and prosthetics pricing - Ambulance Fee Schedule - Emergency and non-emergency transport
🔢 MUE Data (Medically Unlikely Edits)¶
View unit limits that identify services that are unlikely to be performed: - Maximum units per service date - Adjudication indicators (line-level vs claim-level) - Rationale codes and descriptions - Quarterly updates from CMS
📍 PFS Localities¶
Geographic Practice Cost Indices (GPCI) adjustments by locality: - Work GPCI - Practice Expense GPCI - Malpractice GPCI - Medicare Administrative Contractor (MAC) assignments
🗺️ ZIP9 Data¶
ZIP code to carrier locality mappings: - 9-digit ZIP code precision - Carrier assignments - Pricing locality codes - Rural/urban indicators
🏥 DRG Tables¶
Diagnosis Related Group tables with weights and statistics: - MS-DRG weights - Geometric mean length of stay - Arithmetic mean length of stay - Post-acute care indicators - Multiple fiscal years available
Common Features¶
All data viewers share these capabilities:
🔍 Advanced Search¶
- Full-text search across codes and descriptions
- Filter by date ranges and temporal validity
- Multi-column sorting
- Export results to CSV
📊 Pagination¶
- Navigate large datasets efficiently
- Customizable page sizes
- Jump to specific pages
- View total record counts
📅 Temporal Data¶
- View historical data by effective dates
- See current and future rates
- Track changes over time
- Filter by specific date ranges
💾 Data Export¶
- Export search results to CSV
- Download complete datasets
- Include all visible columns
- Preserve filters and sorting
Data Freshness¶
Our data is updated regularly from official CMS sources:
- Fee Schedules: Updated quarterly or as CMS releases updates
- MUE Data: Updated quarterly (January, April, July, October)
- Localities: Updated annually (January)
- ZIP9 Data: Updated quarterly
- DRG Tables: Updated annually (October for next fiscal year)
Access and Permissions¶
- All Users: Can view and search all CMS data
- API Access: Programmatic access available via REST API
Getting Started¶
- Choose a Data Viewer - Select from the navigation menu or links above
- Search or Browse - Use search filters or browse through pages
- View Details - Click on records to see detailed information
- Export Data - Download results for offline analysis
Next Steps¶
Last updated: November 18, 2025