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Revenue codes in medical billing identify where services happened on UB-04 claims. See the 2026 list, types, real examples and common mistakes that cause denials.

Place of service codes in medical billing are two-digit numbers that tell insurance payers exactly where a healthcare service happened. They sit in Box 24B of the CMS-1500 claim form and in Loop 2400 (SV105) on the electronic 837P transaction. Get the code right and the payer processes your claim at the correct rate. Get it wrong and you're looking at a denial, an underpayment, or both. CMS (Centers for Medicare & Medicaid Services) maintains the full POS code set. The most r

The 10 most common medical claim denial reasons, the CARC code behind each one and the exact front-end fix that stops it from repeating.

Compare 6 ABA credentialing companies on scope, payer coverage and pricing model. Plus the BCBA credentialing process and how to get credentialed with BCBS.

Credentialed but claims still denying? Here's how ABA credentialing effective dates work, what CO-B7 means and how to fix the gap before it costs you.

Track provider credentialing status across multiple payers without losing enrollment dates. Nine tracker columns, payer deadline cycles and a 14-day follow-up rhythm.

ABA recredentialing explained: CAQH attestation every 120 days, payer deadlines by plan type and how expired credentials cause ABA claim denials.

ABA insurance credentialing and payer enrollment explained step by step: CAQH, NPI, timelines, Medicaid MCOs and what it takes to reach billing approval

ABA credentialing for new providers explained. Real timelines, the mistakes that stall BCBAs and how to get credentialed without losing billable months.