CPT code 64595: Generator revision, sacral or gastric system2026 Medicare rate & RVUs

Medicare pays $348.04 for 64595 nationally in the office and $209.76 in a hospital or facility. Local office rates run $310.07–$444.20.

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

What 64595 covers

This service addresses the implanted pulse generator or receiver for a sacral neuromodulation system or a gastric electrical stimulation system. The surgeon may revise the generator or remove it; the work concerns the generator or receiver, not the electrode array. Typical cases include correcting a generator pocket problem or removing a failed or no-longer-needed generator. Urologic, colorectal, or foregut surgeons commonly perform these procedures in a procedural or operating-room setting. Device analysis, programming, and imaging are included when performed as part of the service.

Choose this code when the operative work is revision or removal, rather than insertion or replacement of the generator. Document the device type and site, the reason for surgery, and the generator work performed. CMS assigns a 10-day global period, so related postoperative visits during that period are included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this code; co-surgeons and team surgery are not permitted.

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 64595 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

64595 rates by state

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

How the 64595 rate is calculated

Each of 64595’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 64595

64595 has a 10-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

64595 compared with similar codes

How to choose

64590Neurostimulator generatorPulse generator or receiver

Use 64590 for insertion or replacement of the generator or receiver; use 64595 for its revision or removal.

64585Lead revision/removalPeripheral nerve electrode array

64585 addresses revision or removal of a peripheral neurostimulator electrode array. 64595 addresses the generator or receiver in a sacral or gastric system.

64561Sacral nerve leadPercutaneous approach

64561 covers percutaneous implantation of a sacral nerve electrode array. It is not the code for revising or removing the system generator.

Codes related to 64595

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