Internal medicine billing is uniquely difficult because it involves high-volume chronic disease management, complex E/M coding decisions, and a heavy prior authorization burden for specialist referrals, advanced diagnostics, and medications. A single underdocumented E/M level or missed authorization can create recurring revenue leakage across hundreds of claims per month.
Getting internal medicine billing right comes down to three things: accurate E/M level selection, correct chronic care management coding, and tight prior authorization tracking. Get any of them wrong and you're looking at payment delays, claim rejections, or a coding audit. We bring a proven track record in internal medicine billing, and we back it with coding education, timely billing updates, and hands-on experience recovering claims that were denied before we took them over.
Billed Right has provided internal medicine billing support since 2006, serving practices across the US from our base in Longwood, Florida.
Common Pain Areas
- E/M level undercoding loses revenue on nearly every visit.
- Gaps in chronic care management billing hurt both providers and patients.
- Prior authorization burden for specialist referrals and advanced diagnostics, plus split/shared visit documentation errors, cuts into reimbursement and revenue.
Internal Medicine Solutions
- Fast denial management: once an alert fires, we follow up and appeal within 24-48 hours.
- KPI reporting that shows whether your practice is hitting its business goals.
- We work with all major EMR systems (electronic medical records).
- Remote login for easy access.
- Quick and smooth transition.
- No negative impact on your daily operation.
- Bilingual representatives are available.
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Top Denial Reasons
Unsupported E/M Level
Medical decision-making documentation doesn't match the billed E/M level, triggering a downcode or denial.
Missing Prior Authorization
Referrals and advanced diagnostics like CT/MRI often require authorization that's easy to miss without a dedicated tracking process.
Incorrect Chronic Care Management Billing
CCM codes require specific time tracking and consent documentation, and errors here are one of the most common internal medicine denial triggers.
Split/Shared Visit Documentation Errors
Visits shared between a physician and a qualified non-physician provider must clearly document who performed the substantive portion, or the claim gets denied.
Medical Necessity Not Established for Specialist Referral
The billed referral isn't clearly tied to documented medical necessity, so the payer denies the claim.
Payer-Specific Considerations
Payer rules for internal medicine diverge more than almost any other specialty, largely because so much of the work is preventive and time-based rather than procedural. Medicare covers Chronic Care Management codes (99490, 99491, 99487) and Annual Wellness Visits (G0438, G0439), but it requires specific time documentation and patient enrollment before those codes can be billed. Medicaid covers many of the same preventive services, with reimbursement rates that vary significantly by state. Commercial payers apply prior authorization heavily to specialist referrals and advanced diagnostics like CT and MRI. A missing authorization is one of the most common, and most preventable, denial triggers in internal medicine.
What to Expect
Billing Review
We audit recent E/M, chronic care management, and wellness visit claims and show you exactly where revenue is leaking.
Onboarding & EHR Setup
Payer setup and integration with your existing EHR/PM system, no rip-and-replace.
Credentialing Check
We verify provider enrollment status and handle re-credentialing if needed.
Claims Submission Begins
Correctly coded claims go out under full account management, same business day.
Denial Monitoring & Appeals
Denials are flagged and appealed within 24–48 hours of the alert.
Monthly Reporting
KPI dashboards show collections, A/R days, and denial trends every month.
Results Reflected in Our KPIs
Our billing team handles claim processing and follow-up on rejections so nothing sits idle. That's what our internal medicine billing expertise is for: fewer denials, and a revenue cycle that actually runs the way it should.
Frequently Asked Questions
Common codes include 99213-99215 for office visits, 99490 and 99487 for chronic care management, G0438 and G0439 for Medicare Annual Wellness Visits, and modifier 25 for a same-day E/M visit billed alongside a procedure.
The billed E/M level must be supported by documented history, exam, and medical decision-making (or total time for the visit), and undercoding or overcoding either one is one of the most common internal medicine billing errors.
CCM codes (99490, 99491, 99487) require patient consent, a minimum amount of clinical staff time per month, and specific documentation. Without all three, the claim is vulnerable to denial or recoupment.
Yes. We track authorization requirements per payer and submit and follow up on referral and advanced diagnostic (CT/MRI) authorizations before claims go out, not after a denial comes back.
A split/shared visit is one where a physician and a qualified non-physician provider both participate in a patient's care on the same day. The claim must clearly document who performed the substantive portion of the visit, since that determines how it's billed.
We bill G0438 (initial AWV) or G0439 (subsequent AWV) based on documented risk assessment and personalized prevention plan requirements, and track which patients are due to keep that revenue from being missed.
“Billed Right has exceeded my expectations! They have taken a huge load off my office staff and my office revenue is up since hiring them. Their support staff is always very helpful and fast to respond to my questions. I would highly recommend Billed Right for any medical practice.”
More on internal medicine billing.
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ReadInternal Medicine Billing Denial Checklist
A quick self-audit checklist for the most common internal medicine denial reasons, before you submit.
Get itInternal Medicine Practice Reduces Denials and Recovers Lost Revenue
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ReadReady to Strengthen Your Internal Medicine Revenue Cycle?
Schedule a conversation with our internal medicine billing team. We will review your current claims, identify where revenue is slipping, and show you exactly what we would do differently.