CPT code 93596: Right and left cath, normal native connections2026 Medicare rate & RVUs

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 93596 covers

This code reports diagnostic catheterization of both the right and left sides of the heart for congenital heart disease when native connections are normal. A cardiologist performs the study in a cardiac catheterization laboratory. It can evaluate intracardiac pressures, oxygen levels, blood flow, and cardiac anatomy in the setting of congenital heart disease. The normal-native-connection distinction separates this service from the combined catheterization code for abnormal native connections.

Medicare assigns physician fee schedule status C (carrier priced): CMS publishes no national payment, and the Medicare Administrative Contractor sets payment for each claim. The service has professional and technical components. Modifier 26 identifies the interpretation, modifier TC identifies equipment and staff, and reporting without either modifier represents the global service. The global period is zero days, and same-day preoperative and postoperative care are included. The standard multiple-procedure reduction applies when multiple procedures are performed in the same session.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 93596 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

93596 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 93596 rate is calculated

Each of 93596’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 93596

The CMS indicators that decide how 93596 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

93596 compared with similar codes

How to choose

93593Right heart cathNormal connections

93593 is for right-heart catheterization alone with normal native connections. 93596 represents catheterization of both the right and left sides.

93595Left heart cathCongenital heart disease

93595 represents left-heart catheterization for congenital heart disease; 93596 includes both right- and left-heart catheterization.

93597Combined heart cathAbnormal native connections

Both codes represent right- and left-heart catheterization. Choose 93596 for normal native connections and 93597 for abnormal native connections.

Codes related to 93596

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates