Free Billing Tool
Medical Billing Field Lookup
Search CMS-1500 boxes, UB-04 form locators and common medical billing terms from one browser-based reference tool.
Reviewed September 2026 · Educational reference — verify payer and program requirements.
Searches CMS-1500 fields, UB-04 form locators and the medical billing glossary. No data is sent to a server.
58CMS-1500 fields
50+UB-04 locators/groups
40billing terms
1search box