CPT code 00918: Ureteral stone anesthesia, transurethral removal2026 Medicare rate & RVUs in Guam
Anesthesia for transurethral or ureteroscopic removal of a urinary calculus, including operative treatment that extracts or fragments the stone.
CMS doesn’t publish an office rate for 00918 in Guam.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 00918 covers
Code 00918 describes anesthesia for an endoscopic transurethral operation that reaches the urinary tract to remove a calculus. Urologists commonly pass a scope through the urethra and bladder into the ureter, then extract or fragment the stone. An anesthesiologist or CRNA typically provides the anesthesia during operative urologic care.
Choose this code for transurethral or ureteroscopic calculus removal, rather than a general transurethral procedure or a bladder-tumor, prostate, or bleeding-control resection. The operative report should identify the endoscopic route and stone-removal work; the anesthesia record should support the practitioner’s attendance time. Medicare payment is (5 base units + time units) multiplied by the locality’s anesthesia conversion factor. Anesthesia time is reported in minutes and converted to 15-minute units to one decimal place, from the practitioner’s preparation of the patient until personal attendance ends and the patient can safely be placed under postoperative care.
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.
00918 in Hawaii, Guam, HI
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam, HI | Unavailable | Unavailable |
How the 00918 rate is calculated
Each of 00918’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 · 00918
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 00918
00918 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.
Place of service · 00918
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
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00918 isn’t priced in this setting.
00918 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 00910Transurethral anesthesiaOther transurethral procedures
- 00918 is specific to transurethral calculus removal, including ureteroscopic work. Use 00910 for a transurethral procedure without a more specific anesthesia category.
- 00912Bladder tumor anesthesiaTransurethral resection
- 00912 applies to transurethral resection of a bladder tumor; 00918 applies when the endoscopic procedure removes a urinary calculus.
- 00914Prostate resection anesthesiaTransurethral approach
- 00914 is for transurethral prostate resection. Select 00918 for transurethral or ureteroscopic calculus removal.
- 00916Bleeding-control anesthesiaAfter transurethral resection
- 00916 is for transurethral control of bleeding, rather than removal of a urinary calculus.
00918 billing questions
When should 00918 be chosen over 00910?
Use 00918 for transurethral or ureteroscopic work that removes a urinary calculus. Code 00910 is the general choice for a transurethral procedure that does not fit a more specific anesthesia category.
Does 00918 cover bladder tumor or prostate resection?
No. The operative service determines the anesthesia code: bladder tumor resection, prostate resection, and transurethral control of bleeding have their own anesthesia categories.
What should the operative and anesthesia records show?
The operative report should establish the transurethral or ureteroscopic route and calculus-removal work. The anesthesia record should support the anesthesia practitioner’s start and end times.
How are Medicare anesthesia units calculated for 00918?
The code has 5 base units. Medicare adds time units, calculated from anesthesia minutes in 15-minute units to one decimal place, and multiplies the total by the locality’s anesthesia conversion factor.
Does 00918 report the surgeon’s stone-removal procedure?
No. This code reports the anesthesia service; the operating practitioner reports the surgical procedure separately.
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
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