CPT code 93923: Arterial physiology, three or more levels2026 Medicare rate & RVUs

Medicare pays $133.60 for 93923 nationally in the office. Local office rates run $115.80–$185.05.

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

What 93923 covers

This noninvasive study evaluates arterial perfusion in an upper or lower extremity at three or more levels. Depending on the clinical question, the vascular laboratory may combine segmental pressures, ankle-brachial indices, volume plethysmography, or continuous-wave Doppler waveform analysis. It is commonly ordered for suspected peripheral arterial disease, including claudication, rest pain, or a nonhealing lower-extremity wound. Vascular technologists typically acquire the measurements in an office vascular lab or outpatient facility; a qualified practitioner interprets the findings.

Choose the code based on the documented extent of the physiologic examination, not simply the number of limbs. The record should identify the extremity or extremities studied, the levels assessed, the measurements or waveforms obtained, and the interpretation. The study is priced as bilateral, so modifier 50 does not increase payment. It may be billed globally or split into modifier 26 for interpretation and modifier TC for equipment and staff. When multiple cardiovascular diagnostic procedures are reported, the multiple-procedure reduction applies to the technical component.

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 93923 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

93923 rates by state

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

How the 93923 rate is calculated

Each of 93923’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 93923

The CMS indicators that decide how 93923 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

93923 compared with similar codes

How to choose

93922Arterial studyOne or two levels

Choose 93923 when the documented physiologic evaluation covers three or more levels. Choose 93922 for one or two levels.

93924Exercise arterial studyBilateral, rest and treadmill

93924 is the lower-extremity exercise study. 93923 is selected for a physiologic study covering three or more levels, without using exercise as the defining service.

93925Arterial duplexComplete bilateral study

93925 evaluates lower-extremity arteries with duplex imaging. 93923 evaluates arterial physiology through measures such as pressures, plethysmography, or Doppler waveforms.

Codes related to 93923

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