Category
Category: Billing Basics
The building blocks of medical billing: codes and modifiers, EOBs and ERAs, secondary insurance, common mistakes and a glossary of terms.
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The CMS-1500 Form: A Guide for Practices (and How It Differs from the UB-04)
The CMS-1500 Form: A Guide for Practices (and How It Differs from the UB-04) Every claim tells a story: who the patient is, what…
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CPT vs HCPCS vs ICD-10: What Each Code Set Does in Medical Billing
Every medical claim tells the payer a short story — who the patient is, why they were seen, what was done, what was used…
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What Is a Modifier in Medical Billing? A Plain-English Guide
A modifier adds detail to a billing code without changing its meaning. Learn the most common modifiers, how they work, and mistakes to avoid.
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Modifier 59 vs XE, XS, XP, XU
The X modifiers are more specific versions of 59. Here is how CMS defines each, how NCCI edits decide when any of them can be used, and therapy examples.
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Modifier 25: When and How to Use It
Modifier 25 lets a same-day E/M visit be paid alongside a procedure, but only when the visit is significant and separately identifiable. Here is how to decide.
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Medical Billing vs Medical Coding
Coding turns the visit into standardized codes; billing turns those codes into payment. Learn where each job starts and ends, the rules that connect them and where errors cost money.
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Common Medical Billing Errors
The medical billing mistakes that cause most denials and delays, where each one starts in the revenue cycle, and the simple checks that stop them from repeating.
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Medical Billing Glossary
Medical billing terminology from A to Z, with short, accurate definitions of the terms practice owners, managers and billers see on claims, remittances and payer contracts.
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How to Bill Secondary Insurance
When a patient has two plans, the order of billing and the primary payer's adjudication detail decide whether the secondary claim pays. Here is the process.
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EOB vs ERA: What’s the Difference?
Both explain how a claim was paid, but in different formats for different readers. Here is how each works, how to read them and how they drive payment posting.
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