Specialty billing

Cardiology Billing Services

Cardiology claims often involve diagnostic tests with separate professional and technical components, advanced imaging that needs prior authorization, and device monitoring with frequency rules.

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What should practices know about cardiology billing?

Cardiology billing is mostly about splitting work correctly. Many cardiac tests have a professional component, the physician’s interpretation, and a technical component, the equipment and staff. Who bills which part depends on where the test was done and who owns the machine. Get the modifier wrong and the claim is denied, or paid to the wrong party. Advanced imaging often needs prior authorization, and device patients bring remote monitoring codes with their own time periods. Common denial reasons include a missing 26 or TC modifier, an authorization that did not cover the exact test performed, and a diagnosis code that does not support medical necessity.

What makes it different

What makes cardiology billing different

Split components

Echocardiograms, stress tests and ECGs may be billed globally or split with modifiers 26 and TC, depending on who owns the equipment and who interprets.

Prior authorization

Nuclear stress tests, cardiac CT and MRI frequently require authorization before the service.

Device monitoring

Pacemaker and ICD interrogation and remote monitoring codes have specific frequency and reporting-period rules.

Medical necessity

Coverage for many tests depends on diagnosis coding that meets local and national coverage determinations.

Codes at a glance

Common cardiology codes and what to watch

Service	Codes	What to watch
Electrocardiogram	93000 (global), 93010 (interpretation only)	Bill only the part you performed
Echocardiogram	93306 (complete TTE with Doppler and color)	Diagnosis must support necessity; check authorization
Stress test	93015 (global), 93016–93018 (components)	Split components when work is shared
Holter monitor	93224 (up to 48 hours)	Recording and interpretation included in the code
Split billing	Modifier 26 (professional), TC (technical)	Depends on place of service and equipment ownership

Related services

Services that matter most for cardiology

Medical Coding

ICD-10-CM, CPT and HCPCS codes are assigned from clinical documentation.

Denial Management

Denials are corrected, appealed and traced to their root cause.

Claims Management

Claims are scrubbed, submitted and tracked, and rejections get corrected.

Revenue Cycle Management

One team owns the whole cycle, from eligibility to reporting.

FAQ

Cardiology billing questions

What do modifiers 26 and TC mean?

Modifier 26 reports only the professional component (the interpretation). Modifier TC reports only the technical component (the equipment, staff and supplies). A global service with neither modifier covers both.

Why are cardiac imaging claims denied?

Common reasons include missing prior authorization and diagnosis codes that do not meet the payer’s medical-necessity policy for the test.

Coding rules change every year. The code references on this page reflect general guidance at the time of writing. Payer policies and your documentation always determine what is billable.

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