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Billing guides for the questions practices ask most.

Practical answers to the billing questions independent practices run into most, from denial codes to credentialing timelines. Written by our billing team.

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Denial code lookup

What the most common denial codes mean, why they happen and how to fix them. Searchable, with 30 codes explained.

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CO-16CO-29CO-50CO-97CO-109CO-197CO-198CO-204
Pricing

How much does medical billing cost? Percentage vs flat fee, explained

What billing companies charge, how it compares with hiring in-house, and which contract fees to watch for.

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Physical therapy

In-house vs outsourced billing for physical therapy clinics

The costs, the PT-specific risks, and the signs it’s time to hand billing off.

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Mental health

CPT 90834 vs 90837: how to choose the right psychotherapy code

The exact time thresholds, what your notes need to show, and the mistakes that lead to denials.

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Physical therapy

The 8-minute rule for physical therapy billing, explained with examples

How to turn timed minutes into billable units, and where commercial payers differ.

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Primary care

Modifier 25 in primary care: billing a sick visit with a physical

When you can bill both, how to code it, and what the note needs to show.

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Denials

How to fix a CO-197 denial (missing authorization)

Three ways to recover the claim, and how to stop authorization denials coming back.

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Denials

Timely filing limits: why old claims get denied

How long each type of payer gives you, and whether a CO-29 can be overturned.

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Credentialing

How long does insurance credentialing take?

Typical timelines, what you need, and why applications stall.

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