February 27, 2026

CMS-1500 Form Explained: What It Is, Who Uses It & Key Fields in Medical Billing

What is the CMS-1500 form in medical billing? CMS-1500 is the standard U.S. paper claim form used to bill professional (non-facility) healthcare services to payers like Medicare, Medicaid, and private insurers. Think of it as the paper “template” for professional billing—especially common for physician services and outpatient professional charges. Who uses CMS-1500, and what kinds […]

CMS-1500 Form Explained: What It Is, Who Uses It & Key Fields in Medical Billing Read More »

CMS-1500 vs UB-04 (CMS-1450): Differences, Fields & 837P/837I Explained

What are CMS-1500 and UB-04 (CMS-1450), and why do they matter in medical billing? If you ever submit U.S. medical claims on paper, CMS-1500 and UB-04 (CMS-1450) are the two “standard” forms you’ll keep running into. They’re essentially the paper versions of two HIPAA claim transactions: CMS-1500 ↔ 837P (Professional) UB-04/CMS-1450 ↔ 837I (Institutional) Even

CMS-1500 vs UB-04 (CMS-1450): Differences, Fields & 837P/837I Explained Read More »