POS 22 in Medical Billing: The 2026 Payer-Specific Compliance Playbook for Healthcare Providers
Introduction POS 22 in medical billing is the official CMS designation for On Campus-Outpatient Hospital: a hospital-owned outpatient department on the main campus where patients receive care without formal admission. It goes in Item 24B of the CMS-1500. Most billing guides stop there. The real issue is what happens after you write it. This single […]
CO-50 Denial Code: What It Means, Why It Happens, and How to Fix It
You pulled a CO 50 denial code off your remittance, and now you’re trying to figure out what went wrong and whether you can recover the money. Here’s the thing: this denial has a very specific financial consequence that most billing staff don’t catch until it’s too late. CO-50 is the sixth most common reason […]