CPT code 52318: Bladder stone removal, large or complicated stone2026 Medicare rate & RVUs in North Carolina
Endoscopic fragmentation and evacuation of a large or complicated bladder stone, reported when treatment exceeds simple removal of a small calculus.
In North Carolina, Medicare pays $395.06 for 52318 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 52318 nationwide
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 11 sections
What 52318 covers
During this urologic procedure, the physician passes a cystoscope through the urethra into the bladder, fragments a bladder calculus, and evacuates the pieces. It is used for a large stone (>2.5 cm) or when treatment is complicated. A urologist typically performs it in a hospital outpatient department or ambulatory surgery center, with selected cases in an office setting.
Choose this level from the operative report: document the bladder location, stone size when measured, method of fragmentation and removal, and what made treatment complicated when size alone does not support the level. The related simple or small-stone service is 52317. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies occur in the same session, endoscopy-family pricing applies. Modifier 50 is inappropriate; assistant-at-surgery payment is barred, and 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.
How North Carolina compares for 52318
Across 109 of 109 payment localities, the facility rate for 52318 runs from $384.15 in Wisconsin to $551.22 in Alaska. North Carolina pays $395.06. The RVUs are the same everywhere; the geographic indexes change the dollars.
- North Carolina · this page$395.06
- Los Angeles, CA · California$427.41+$32.35
- Washington, DC area · District of Columbia$448.31+$53.25
- Miami, FL · Florida$476.55+$81.49
- Chicago, IL · Illinois$466.82+$71.76
- Manhattan, NY · New York$468.40+$73.34
- Alaska · Alaska$551.22+$156.16
Other areas in North Carolina first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $387.79 |
| ArkansasArkansas | — | $384.59 |
| ArizonaArizona | — | $406.22 |
| Bakersfield, CACalifornia | — | $412.04 |
| Chico, CACalifornia | — | $408.62 |
| El Centro, CACalifornia | — | $408.81 |
| Fresno, CACalifornia | — | $408.62 |
| Hanford, CACalifornia | — | $408.62 |
| Madera, CACalifornia | — | $408.62 |
| Merced, CACalifornia | — | $408.62 |
| Modesto, CACalifornia | — | $408.62 |
| Napa, CACalifornia | — | $438.26 |
| Oxnard, CACalifornia | — | $421.86 |
| Redding, CACalifornia | — | $408.62 |
| Rest of CaliforniaCalifornia | — | $408.62 |
| Riverside, CACalifornia | — | $421.20 |
| Sacramento, CACalifornia | — | $419.42 |
| Salinas, CACalifornia | — | $417.62 |
| San Diego, CACalifornia | — | $420.39 |
| Marin County, CACalifornia | — | $452.97 |
| San Francisco, CACalifornia | — | $451.65 |
| San Benito County, CACalifornia | — | $462.88 |
| Santa Clara County, CACalifornia | — | $457.50 |
| San Luis Obispo, CACalifornia | — | $411.91 |
| Santa Cruz, CACalifornia | — | $418.92 |
| Santa Maria, CACalifornia | — | $417.26 |
| Santa Rosa, CACalifornia | — | $422.60 |
| Stockton, CACalifornia | — | $408.62 |
| Vallejo, CACalifornia | — | $436.37 |
| Visalia, CACalifornia | — | $408.62 |
| Yuba City, CACalifornia | — | $408.62 |
| ColoradoColorado | — | $414.17 |
| ConnecticutConnecticut | — | $434.18 |
| DelawareDelaware | — | $410.83 |
| Fort Lauderdale, FLFlorida | — | $446.47 |
| Rest of FloridaFlorida | — | $430.29 |
| Atlanta, GAGeorgia | — | $424.08 |
| Rest of GeorgiaGeorgia | — | $413.35 |
| Hawaii, Guam, HIHawaii | — | $408.34 |
| IowaIowa | — | $384.31 |
| IdahoIdaho | — | $387.63 |
| East St. Louis, ILIllinois | — | $447.34 |
| Rest of IllinoisIllinois | — | $429.33 |
| Suburban Chicago, ILIllinois | — | $448.24 |
| IndianaIndiana | — | $388.67 |
| KansasKansas | — | $387.61 |
| KentuckyKentucky | — | $402.39 |
| New Orleans, LALouisiana | — | $414.93 |
| Rest of LouisianaLouisiana | — | $403.75 |
| Metropolitan Boston, MAMassachusetts | — | $437.00 |
| Rest of MassachusettsMassachusetts | — | $415.14 |
| Baltimore area, MDMaryland | — | $433.72 |
| Rest of MarylandMaryland | — | $414.90 |
| Rest of MaineMaine | — | $393.41 |
| Southern Maine, MEMaine | — | $399.19 |
| Detroit, MIMichigan | — | $438.07 |
| Rest of MichiganMichigan | — | $412.51 |
| MinnesotaMinnesota | — | $389.11 |
| Metropolitan Kansas City, MOMissouri | — | $408.61 |
| Metropolitan St. Louis, MOMissouri | — | $410.58 |
| Rest of MissouriMissouri | — | $402.61 |
| MississippiMississippi | — | $393.43 |
| MontanaMontana | — | $414.09 |
| North DakotaNorth Dakota | — | $391.16 |
| NebraskaNebraska | — | $384.18 |
| New HampshireNew Hampshire | — | $412.46 |
| Northern New JerseyNew Jersey | — | $447.88 |
| Rest of New JerseyNew Jersey | — | $436.92 |
| New MexicoNew Mexico | — | $415.61 |
| NevadaNevada | — | $407.78 |
| NYC suburbs and Long Island, NYNew York | — | $480.96 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $443.03 |
| Queens, NYNew York | — | $464.35 |
| Rest of New YorkNew York | — | $398.84 |
| OhioOhio | — | $407.83 |
| OklahomaOklahoma | — | $397.35 |
| Portland, OROregon | — | $417.53 |
| Rest of OregonOregon | — | $402.36 |
| Metropolitan Philadelphia, PAPennsylvania | — | $430.17 |
| Rest of PennsylvaniaPennsylvania | — | $405.77 |
| Puerto RicoPuerto Rico | — | $414.43 |
| Rhode IslandRhode Island | — | $418.19 |
| South CarolinaSouth Carolina | — | $402.55 |
| South DakotaSouth Dakota | — | $388.44 |
| TennesseeTennessee | — | $389.27 |
| Austin, TXTexas | — | $414.79 |
| Beaumont, TXTexas | — | $404.54 |
| Brazoria, TXTexas | — | $407.35 |
| Dallas, TXTexas | — | $411.05 |
| Fort Worth, TXTexas | — | $410.79 |
| Galveston, TXTexas | — | $409.36 |
| Houston, TXTexas | — | $430.60 |
| Rest of TexasTexas | — | $406.51 |
| UtahUtah | — | $405.63 |
| VirginiaVirginia | — | $401.48 |
| Virgin Islands, VIUnited States Virgin Islands | — | $414.43 |
| VermontVermont | — | $394.27 |
| Rest of WashingtonWashington | — | $412.85 |
| King County, WAWashington | — | $439.39 |
| WisconsinWisconsin | — | $384.15 |
| West VirginiaWest Virginia | — | $420.85 |
| WyomingWyoming | — | $404.10 |
52318 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 52318 rate is calculated
Each of 52318’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 · 52318
RVUs × geographic indexes × conversion factor
Work8.95
8.95 RVUs× 1.000 GPCI
Practice expense2.29
2.29 RVUs× 1.000 GPCI
Malpractice1.16
1.16 RVUs× 1.000 GPCI
Adjusted RVUs
12.4000
Conversion factor
$33.4009
Medicare rate
$414.17
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact North Carolina inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
6,137
- Code
- 52318
- Physician work
- 8.95
- Practice expense
- 2.29
- Malpractice
- 1.16
GPCI2026.csv
83
- Locality
- North Carolina
- Physician work
- 1.000
- Practice expense
- 0.933
- Malpractice
- 0.639
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 8.95 | × 1.000 | 8.9500 |
| Practice expense | 2.29 | × 0.933 | 2.1366 |
| Malpractice | 1.16 | × 0.639 | 0.7412 |
| Total RVUs | 11.8278 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, North Carolina$395.06
Facility: (8.95 × 1 + 2.29 × 0.933 + 1.16 × 0.639) × $33.4009 = $395.06
Payment rules and modifiers for 52318
The CMS indicators that decide how 52318 is paid alongside other services.
CMS payment indicators · 52318
Bladder stone removal, large or complicated stone
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 3 | Endoscopy family rules apply. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
52318 without 51 · national facility
$414.17
Bladder stone removal, large or complicated stone
52318-51 · Second procedure: 50%
$207.09
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
How 52318 has changed in North Carolina
52318 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $395.06 | RVU26D |
| 2026-07-01 | Not available in this setting | $395.06 | RVU26C |
| 2026-04-01 | Not available in this setting | $395.06 | RVU26B |
| 2026-01-01 | Not available in this setting | $395.06 | RVU26A |
| 2025-10-01 | Not available in this setting | $432.46 | RVU25D |
| 2025-07-01 | Not available in this setting | $432.46 | RVU25C |
| 2025-04-01 | Not available in this setting | $432.46 | RVU25B |
| 2025-01-01 | Not available in this setting | $432.46 | RVU25A |
| 2024-10-01 | Not available in this setting | $442.40 | RVU24D |
| 2024-07-01 | Not available in this setting | $442.40 | RVU24C |
| 2024-04-01 | Not available in this setting | $442.40 | RVU24B |
| 2024-03-09 | Not available in this setting | $442.40 | RVU24AR |
| 2024-01-01 | Not available in this setting | $435.18 | RVU24A |
| 2023-10-01 | Not available in this setting | $449.32 | RVU23D |
| 2023-07-01 | Not available in this setting | $449.32 | RVU23C |
| 2023-04-01 | Not available in this setting | $449.32 | RVU23B |
| 2023-01-01 | Not available in this setting | $449.32 | RVU23A |
| 2022-10-01 | Not available in this setting | $459.05 | RVU22D |
| 2022-07-01 | Not available in this setting | $459.05 | RVU22C |
| 2022-04-01 | Not available in this setting | $459.05 | RVU22B |
| 2022-01-01 | Not available in this setting | $459.05 | RVU22A |
| 2021-10-01 | Not available in this setting | $463.26 | RVU21D |
| 2021-07-01 | Not available in this setting | $463.26 | RVU21C |
| 2021-04-01 | Not available in this setting | $463.26 | RVU21B |
| 2021-01-01 | Not available in this setting | $463.26 | RVU21A |
| 2020-10-01 | Not available in this setting | $475.11 | RVU20D |
| 2020-07-01 | Not available in this setting | $475.11 | RVU20C |
| 2020-04-01 | Not available in this setting | $475.11 | RVU20B |
| 2020-01-01 | Not available in this setting | $475.11 | RVU20A |
| 2019-10-01 | Not available in this setting | $474.16 | RVU19D |
| 2019-07-01 | Not available in this setting | $474.16 | RVU19C |
| 2019-04-01 | Not available in this setting | $474.16 | RVU19B |
| 2019-01-01 | Not available in this setting | $474.16 | RVU19A |
| 2018-10-01 | Not available in this setting | $475.06 | RVU18D |
| 2018-07-01 | Not available in this setting | $475.06 | RVU18C |
| 2018-04-01 | Not available in this setting | $475.06 | RVU18B |
| 2018-01-01 | Not available in this setting | $475.06 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $473.60 | RVU17D |
| 2017-07-01 | Not available in this setting | $473.60 | RVU17C |
| 2017-04-01 | Not available in this setting | $473.60 | RVU17B |
| 2017-01-01 | Not available in this setting | $473.60 | RVU17A |
| 2016-10-01 | Not available in this setting | $471.88 | RVU16D |
| 2016-07-01 | Not available in this setting | $471.88 | RVU16C |
| 2016-04-01 | Not available in this setting | $471.88 | RVU16B |
| 2016-01-01 | Not available in this setting | $471.88 | RVU16A |
| 2015-10-01 | Not available in this setting | $472.92 | RVU15D |
| 2015-07-01 | Not available in this setting | $472.92 | RVU15C |
| 2015-04-01 | Not available in this setting | $470.57 | RVU15B |
| 2015-01-01 | Not available in this setting | $470.57 | RVU15A |
| 2014-10-01 | Not available in this setting | $465.36 | RVU14D |
| 2014-07-01 | Not available in this setting | $465.36 | RVU14C |
| 2014-04-01 | Not available in this setting | $465.36 | RVU14B |
| 2014-01-01 | Not available in this setting | $465.36 | RVU14A |
| 2013-10-01 | Not available in this setting | $446.05 | RVU13D |
| 2013-07-01 | Not available in this setting | $446.05 | RVU13C |
| 2013-04-01 | Not available in this setting | $446.05 | RVU13B |
| 2013-01-01 | Not available in this setting | $446.05 | RVU13AR |
Where the North Carolina rate applies
North Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 785 cities and communities in North Carolina. Some span more than one payment area; confirm with the service ZIP.
- Aberdeen
- Advance
- Ahoskie
- Alamance
- Albemarle
- Alexis
- Alliance
- Altamahaw
52318 billing questions
How does 52318 differ from 52317?
52318 is for complicated treatment or a large bladder stone (>2.5 cm). 52317 is for simple treatment of a small stone (<2.5 cm).
Is stone size alone enough to support 52318?
A stone larger than 2.5 cm supports the large-stone level. For a smaller stone, the operative report should explain why treatment was complicated.
Can the cystoscopy be billed separately?
The cystoscopic access is part of the stone-treatment service; do not report a separate diagnostic cystoscopy for that same work.
Should modifier 50 be appended for multiple bladder stones?
No. CMS identifies bilateral adjustment as inapplicable for this service, and modifier 50 is inappropriate.
How is 52318 handled with another endoscopic procedure in the same session?
When related endoscopies are performed together, CMS applies endoscopy-family pricing. Same-day preoperative and postoperative care is included in the 0-day global period.
Can an assistant or co-surgeon be billed?
CMS does not pay an assistant at surgery for this service and does not permit co-surgeons or team surgery.
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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