HCPCS code G0500: Endoscopy sedation, initial 15 minutes, age 5+2026 Medicare rate & RVUs

Medicare pays $66.47 for G0500 nationally in the office and $5.34 in a hospital or facility. Local office rates run $57.22–$93.83.

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

What G0500 covers

G0500 represents the endoscopist’s moderate sedation service during a gastrointestinal endoscopy, such as colonoscopy or upper endoscopy. The physician or other qualified health care professional performing the endoscopy also provides the sedation, with an independent trained observer assisting in monitoring the patient’s consciousness and physiologic status. The service covers the initial 15 minutes of intra-service time for patients age five or older.

Report G0500 with the endoscopic procedure when the endoscopist provides qualifying moderate sedation; it is not the code for anesthesia furnished by a separate anesthesia professional. The record should support the sedation provided, the observer’s monitoring role, the patient’s age, and the intra-service time. For additional qualifying sedation time, 99153 may be reported for each additional 15-minute interval when supported. CMS assigns G0500 separate physician fee schedule values for office and facility settings, with different practice-expense values by setting.

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 G0500 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

G0500 rates by state

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

How the G0500 rate is calculated

Each of G0500’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 G0500

G0500 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

G0500 compared with similar codes

How to choose

99152Moderate sedationSame provider, age 5+, initial period

G0500 is specific to moderate sedation furnished by the endoscopist during GI endoscopy. 99152 describes the initial service for other qualifying diagnostic or therapeutic procedures.

99153Moderate sedationEach additional 15 minutes

G0500 covers the initial 15 minutes of qualifying GI endoscopy sedation. 99153 is used for each additional 15-minute interval when supported.

Codes related to G0500

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