Cardiology has a 12.8% average denial rate — driven by same-day E/M rules, echo component billing, nuclear imaging prior auth, and remote monitoring codes that most practices leave unbilled.
Common Billing Challenges
These are the six billing failure points we see most often — and the ones our team resolves systematically from day one.
Billing a separately identifiable E/M on the same day as a procedure with modifier 25 requires meticulous documentation. Omitting this modifier costs the average cardiology practice $67K/year in missed revenue.
Complete vs. limited echo billing carries a $150 reimbursement difference per study. Correct selection requires documentation of all required components — and systematic underbilling is endemic in cardiology.
35% of nuclear cardiology auth requests require peer-to-peer review. We prepare full clinical packages including ECG findings, symptom history, and exercise testing contraindications before submission.
99457/99458 for RPM and 93294-93297 for device interrogation represent $86K-$172K/year in uncaptured revenue for a practice with 200 monitored patients. We build out the billing workflow for your existing monitoring program.
Cath billing involves multiple component codes — catheter placement (93454-93461), injection procedures (93565, 93568), and PCI codes (92920-92944) — each requiring precise documentation and staging rules.
With APPs performing portions of cardiology visits, split/shared billing requires documentation of exactly who performed the substantive portion. CMS 2026 audits in cardiology are increasingly focused on this issue.
Key Procedure Codes
Our coders hold specialty-specific credentials and train continuously on the codes that drive the most revenue — and the most denials — in that specialty.
| CPT Code | Description | Common Issue |
|---|---|---|
| 93306 | Echo, complete with Doppler | Modifier 25 + separate E/M note |
| 93452 | Left heart catheterization | Complete vs. limited documentation |
| 78452 | SPECT myocardial perfusion, multiple | 35% require peer-to-peer |
| 99457 | Remote physiologic monitoring, 20 min | 99457/99458 workflow setup |
| 93015 | Cardiovascular stress test | Component billing + staging rules |
| 93000 | Electrocardiogram, 12-lead | Substantive portion documentation |
Why Rcmaxis
We're not a generalist billing service that added a specialty module. Our team is built around specialty-specific expertise.
Every coder on your account holds the specialty coding credential relevant to your field — not a generic CPC only.
Significantly above the 12.8% industry denial rate for your specialty. Fewer rejections means faster payment and less write-off risk.
Full EHR integration, payer enrollment verification, and charge capture setup in 2 weeks — with zero disruption to your clinical schedule.
One point of contact who knows your practice, your payers, and your billing history — available for weekly calls and monthly performance reviews.
Month-to-month engagement. We earn your business every month by improving your collections — not by locking you in.
Live visibility into your collections, denial rate, aging AR, and payer performance — updated daily, reviewed monthly with your account team.
Straight answers to what practices usually ask before they switch.
Free revenue assessment for qualified practices. We audit your last 90 days of claims, identify every revenue leak, and show you a clear path to better collections — at no cost.