Cardiology medical billing for procedure-heavy practices.

Cardiology is where a single claim can represent thousands of dollars — and where payers review most carefully. When a billing team treats a cath, ablation, or echo like a generic office visit, the result is predictable: medical-necessity and bundling denials that take months to unwind. The difference is specialty-fluent review of the note before submission, so high-dollar work is paid the first time whenever documentation and policy support it.

Cath lab and interventional work that clears edits

A left heart cath with coronary angiography typically lands on 93458; add bypass graft imaging and you move to 93459. Right-heart work, congenital cases, and interventions each shift the code family. The trap is same-session billing: payer edits often fold a diagnostic cath into the intervention unless the note shows the diagnostic study changed the plan — and modifiers must match. We check same-day cath and stent combinations against current edits before submission. Habitual modifier 59 without documentation is a common path to refunds.

EP, device checks, and undercaptured interrogations

SVT ablations often use 93653; atrial fibrillation pulmonary vein isolation typically uses 93656, with add-ons when additional areas are treated. Pacemaker and defibrillator interrogations — remote and in person — are billable services that are frequently written off when the front desk logs them as a routine nurse visit. Over a year, that labeling error becomes real lost revenue.

• Bill interpretation (modifier 26) when your physician reads the study but the facility owns the equipment.
• Bill the technical component (modifier TC) only when your practice owns the equipment and the contract allows it.
• Bill globally only when your group provides both components in your own office setting.
• Let the site of service — not payment pressure — decide professional, technical, or global billing.

Echo, stress testing, and medical-necessity appeals

A full transthoracic echo with Doppler is typically 93306; limited or follow-up studies drop to 93307 or 93308. Stress echo and nuclear studies carry their own rules and frequency limits. Before appealing a medical-necessity denial, we pull the payer’s coverage policy, match the patient’s diagnosis to the covered list, and cite the policy section in the appeal. Policy-cited letters recover far more often than generic “the patient needed the test” letters.

Underpayments that look like routine adjustments

Cardiology contracts are complex enough that underpayments can hide for months inside ordinary-looking remittance adjustments. Each month we compare allowed amounts against contracted rates on your top procedure and device codes. Watching denial rate alone while ignoring that gap leaves earned dollars uncollected.

Follow-up visits during a global period for unrelated problems need correct modifiers or they are absorbed into the procedure fee. We train charge capture around those edges so cath and EP volume posts clean on first pass — the 97%+ target is an operating standard for busy weeks, not a slogan.