Billing code 64583: Stimulator revisionMedicare rate & RVUs in Florida
Revision or replacement of an implanted hypoglossal nerve stimulation array and pulse generator, generally performed to address a problem with an existing system.
CMS doesn’t publish an office rate for 64583 in Florida.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 64583 covers
This operating-room service revises or replaces an implanted hypoglossal nerve stimulation array and pulse generator. It is typically performed by an otolaryngologist or another surgeon experienced with hypoglossal nerve stimulation for obstructive sleep apnea. The work concerns an existing system, rather than the initial implantation used to treat a patient with sleep-disordered breathing.
Report 64583 when the operative work revises or replaces the hypoglossal array and pulse generator; document the existing device, the reason for the procedure, and the components addressed. The code has a 90-day global period, which includes the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery, co-surgeon, and team-surgery payment requires supporting documentation; an assistant also requires documentation of medical necessity.
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 64583 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale | Unavailable | $803.42 |
| Miami | Unavailable | $858.75 |
| Rest Of Florida | Unavailable | $770.80 |
How the 64583 rate is calculated
Each of 64583’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.
How the rate is built · 64583
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 14.14Practice expense 6.11Malpractice 2.06
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 64583
64583 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 64583
Stimulator revision
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 1 | Permitted with supporting documentation. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.11/0.76/0.13 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 64583
Stimulator revision
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
64583 without 50 · national facility
$745.17
Stimulator revision
64583-50 · Bilateral: 150%
$1,117.76
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
64583 compared with similar codes
Compare codes
64583 vs 64582 vs 64584 vs 64590: national Medicare rates
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How to choose
- 64582Nerve stimulator implant
- Choose 64582 for initial implantation of a hypoglossal stimulation system. Choose 64583 when an existing array and pulse generator are revised or replaced.
- 64584Stimulator removal
- 64584 describes removal of the hypoglossal array and pulse generator; 64583 describes revision or replacement of those system components.
- 64590Neurostimulator generator
- 64590 addresses insertion or replacement of a pulse generator for specified peripheral or gastric neurostimulator systems. 64583 is specific to revision or replacement of the hypoglossal array and generator.
64583 billing questions
How is 64583 different from 64582?
64583 is for revision or replacement of an existing hypoglossal stimulation array and pulse generator. 64582 is for initial implantation of the system.
When is 64584 reported instead?
64584 describes removal of the hypoglossal nerve stimulation array and pulse generator. Use 64583 when the operative service is revision or replacement rather than removal.
Does 64583 cover both the array and pulse generator?
The code describes revision or replacement of the hypoglossal array and pulse generator. Document which components were addressed; do not treat the code as a separate charge for each component.
What documentation supports 64583?
The operative report should identify the existing hypoglossal system, the reason for revision or replacement, and the work performed on the array and pulse generator.
How are assistant and co-surgeon services handled?
Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeon and team-surgery payment requires supporting documentation.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
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
Show the CMS file lines behind this rate
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