CPT code 93291: Loop recorder check, in-person interrogation2026 Medicare rate & RVUs in California

Medicare pays $51.39–$64.76 for 93291 in the office in California, from Chico, CA to San Benito County, CA. Which amount applies depends on the service address.

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

What 93291 covers

This service evaluates an implanted subcutaneous cardiac rhythm monitor, often called an implantable loop recorder, during an in-person device check. Device clinic staff retrieve stored information, and a physician or other qualified practitioner reviews and interprets recorded events and reports the findings. These monitors may be used to investigate intermittent symptoms such as syncope or palpitations when rhythm information is needed over time.

Report 93291 for the in-person interrogation and analysis of the subcutaneous monitor, not simply for changing its programmed settings. The record should identify the device and support the in-person evaluation, data review, interpretation, and report. Billing without a modifier represents the global service; modifier 26 identifies the professional interpretation, while modifier TC identifies the technical service, including equipment and staff. When multiple cardiovascular diagnostic procedures are performed, the CMS multiple-procedure reduction applies to this code’s 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 93291 pays more and less in California

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

29 of 29 payment localities

How the 93291 rate is calculated

Each of 93291’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 93291

The CMS indicators that decide how 93291 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

93291 compared with similar codes

How to choose

93285Device programmingImplantable event recorder

Use 93291 for in-person interrogation and analysis of recorded events. Use 93285 when the service is an in-person programming evaluation of the subcutaneous monitor.

93298Remote loop recorder checkSubcutaneous monitor, up to 30 days

Both concern subcutaneous cardiac rhythm monitors, but 93291 is for an in-person interrogation and 93298 is for remote interrogation.

93290Device interrogationImplantable physiologic monitor

93290 concerns interrogation of an implantable cardiovascular physiologic monitor; 93291 is for a subcutaneous cardiac rhythm monitor.

93289Device interrogationImplantable defibrillator

93289 is used for interrogation of an implantable defibrillator system. 93291 is for an implanted subcutaneous cardiac rhythm monitor.

Codes related to 93291

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