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 are 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.
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.