CPT code 23350: Shoulder injection, for diagnostic imaging2026 Medicare rate & RVUs in Iowa
Reports contrast injection into the shoulder joint to support arthrography or enhanced CT or MRI, separately from the diagnostic imaging service.
In Iowa, Medicare pays $144.87 for 23350 in the office and $39.73 when it’s performed in a hospital or facility.
Check a contract rate as a % of Medicare · 23350 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 23350 covers
This service places contrast material into the shoulder joint so imaging can show joint structures more clearly. It is commonly performed by a radiologist or other qualified clinician in an imaging department, using imaging guidance to direct the needle. The injection supports shoulder arthrography or CT or MRI performed with intra-articular contrast; it is not the same service as a therapeutic shoulder injection.
Report 23350 for the contrast injection, and report the imaging examination separately when performed. Documentation should identify the shoulder and side, the diagnostic purpose, and the contrast administration. For bilateral procedures, modifier 50 is paid at 150%. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the others are subject to a 50% reduction. The 0-day global period includes same-day preoperative and postoperative care. 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.
How Iowa compares for 23350
Across 109 of 109 payment localities, the office rate for 23350 runs from $138.43 in Arkansas to $212.78 in San Benito County, CA. Iowa pays $144.87. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Iowa · this page$144.87
- Los Angeles, CA · California$179.50+$34.63
- Washington, DC area · District of Columbia$180.67+$35.80
- Miami, FL · Florida$166.55+$21.68
- Chicago, IL · Illinois$161.71+$16.84
- Manhattan, NY · New York$180.48+$35.61
- Alaska · Alaska$179.88+$35.01
Other areas in Iowa first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | $140.52 | $39.99 |
| ArkansasArkansas | $138.43 | $39.73 |
| ArizonaArizona | $152.79 | $41.46 |
| Bakersfield, CACalifornia | $168.07 | $42.14 |
| Chico, CACalifornia | $167.79 | $41.86 |
| El Centro, CACalifornia | $167.80 | $41.87 |
| Fresno, CACalifornia | $167.79 | $41.86 |
| Hanford, CACalifornia | $167.79 | $41.86 |
| Madera, CACalifornia | $167.79 | $41.86 |
| Merced, CACalifornia | $167.79 | $41.86 |
| Modesto, CACalifornia | $167.79 | $41.86 |
| Napa, CACalifornia | $196.12 | $44.69 |
| Oxnard, CACalifornia | $178.83 | $43.02 |
| Redding, CACalifornia | $167.79 | $41.86 |
| Rest of CaliforniaCalifornia | $167.79 | $41.86 |
| Riverside, CACalifornia | $168.77 | $42.84 |
| Sacramento, CACalifornia | $176.53 | $42.90 |
| Salinas, CACalifornia | $175.88 | $42.71 |
| San Diego, CACalifornia | $180.35 | $42.93 |
| Marin County, CACalifornia | $208.18 | $46.17 |
| San Francisco, CACalifornia | $208.08 | $46.07 |
| San Benito County, CACalifornia | $212.78 | $47.10 |
| Santa Clara County, CACalifornia | $212.36 | $46.68 |
| San Luis Obispo, CACalifornia | $173.00 | $42.13 |
| Santa Cruz, CACalifornia | $182.34 | $42.74 |
| Santa Maria, CACalifornia | $176.63 | $42.66 |
| Santa Rosa, CACalifornia | $184.22 | $43.12 |
| Stockton, CACalifornia | $167.79 | $41.86 |
| Vallejo, CACalifornia | $195.98 | $44.54 |
| Visalia, CACalifornia | $167.79 | $41.86 |
| Yuba City, CACalifornia | $167.79 | $41.86 |
| ColoradoColorado | $164.48 | $42.23 |
| ConnecticutConnecticut | $167.61 | $43.86 |
| DelawareDelaware | $155.39 | $41.87 |
| Fort Lauderdale, FLFlorida | $160.99 | $44.60 |
| Rest of FloridaFlorida | $153.16 | $43.32 |
| Atlanta, GAGeorgia | $159.63 | $42.89 |
| Rest of GeorgiaGeorgia | $144.47 | $41.98 |
| Hawaii, Guam, HIHawaii | $172.33 | $41.69 |
| IdahoIdaho | $145.70 | $39.99 |
| East St. Louis, ILIllinois | $150.33 | $44.63 |
| Rest of IllinoisIllinois | $148.13 | $43.23 |
| Suburban Chicago, ILIllinois | $162.81 | $44.81 |
| IndianaIndiana | $146.59 | $40.08 |
| KansasKansas | $143.85 | $39.98 |
| KentuckyKentucky | $143.27 | $41.13 |
| New Orleans, LALouisiana | $150.24 | $42.12 |
| Rest of LouisianaLouisiana | $142.91 | $41.23 |
| Metropolitan Boston, MAMassachusetts | $181.52 | $44.33 |
| Rest of MassachusettsMassachusetts | $163.32 | $42.33 |
| Baltimore area, MDMaryland | $167.07 | $43.78 |
| Rest of MarylandMaryland | $158.52 | $42.24 |
| Rest of MaineMaine | $146.15 | $40.44 |
| Southern Maine, MEMaine | $154.78 | $40.92 |
| Detroit, MIMichigan | $154.80 | $43.93 |
| Rest of MichiganMichigan | $146.82 | $41.92 |
| MinnesotaMinnesota | $158.38 | $40.15 |
| Metropolitan Kansas City, MOMissouri | $149.52 | $41.63 |
| Metropolitan St. Louis, MOMissouri | $151.17 | $41.79 |
| Rest of MissouriMissouri | $140.17 | $41.13 |
| MississippiMississippi | $139.35 | $40.42 |
| MontanaMontana | $156.98 | $42.08 |
| North CarolinaNorth Carolina | $147.78 | $40.57 |
| North DakotaNorth Dakota | $155.20 | $40.30 |
| NebraskaNebraska | $145.78 | $39.73 |
| New HampshireNew Hampshire | $161.58 | $41.97 |
| Northern New JerseyNew Jersey | $178.65 | $45.37 |
| Rest of New JerseyNew Jersey | $169.74 | $44.27 |
| New MexicoNew Mexico | $147.53 | $42.16 |
| NevadaNevada | $156.60 | $41.59 |
| NYC suburbs and Long Island, NYNew York | $184.57 | $47.96 |
| Poughkeepsie and northern NYC suburbs, NYNew York | $170.61 | $44.79 |
| Queens, NYNew York | $182.47 | $46.66 |
| Rest of New YorkNew York | $150.03 | $40.88 |
| OhioOhio | $146.46 | $41.56 |
| OklahomaOklahoma | $143.34 | $40.74 |
| Portland, OROregon | $170.20 | $42.54 |
| Rest of OregonOregon | $155.61 | $41.17 |
| Metropolitan Philadelphia, PAPennsylvania | $163.12 | $43.51 |
| Rest of PennsylvaniaPennsylvania | $146.88 | $41.40 |
| Puerto RicoPuerto Rico | $158.27 | $42.11 |
| Rhode IslandRhode Island | $161.28 | $42.59 |
| South CarolinaSouth Carolina | $147.32 | $41.15 |
| South DakotaSouth Dakota | $154.99 | $40.09 |
| TennesseeTennessee | $144.56 | $40.12 |
| Austin, TXTexas | $163.74 | $42.18 |
| Beaumont, TXTexas | $145.86 | $41.30 |
| Brazoria, TXTexas | $155.49 | $41.63 |
| Dallas, TXTexas | $156.37 | $41.93 |
| Fort Worth, TXTexas | $155.19 | $41.90 |
| Galveston, TXTexas | $155.88 | $41.79 |
| Houston, TXTexas | $157.53 | $43.43 |
| Rest of TexasTexas | $150.51 | $41.47 |
| UtahUtah | $149.40 | $41.40 |
| VirginiaVirginia | $154.04 | $41.09 |
| Virgin Islands, VIUnited States Virgin Islands | $158.27 | $42.11 |
| VermontVermont | $154.29 | $40.54 |
| Rest of WashingtonWashington | $163.12 | $42.13 |
| King County, WAWashington | $185.59 | $44.61 |
| WisconsinWisconsin | $149.81 | $39.74 |
| West VirginiaWest Virginia | $142.40 | $42.55 |
| WyomingWyoming | $156.20 | $41.30 |
23350 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.
$138.43
$190.29
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $179.88 | 1 |
| AL | $140.52 | 1 |
| AR | $138.43 | 1 |
| AZ | $152.79 | 1 |
| CA | $167.79–$212.78 | 29 |
| CO | $164.48 | 1 |
| CT | $167.61 | 1 |
| DC | $180.67 | 1 |
| DE | $155.39 | 1 |
| FL | $153.16–$166.55 | 3 |
| GA | $144.47–$159.63 | 2 |
| GU | $172.33 | 1 |
| HI | $172.33 | 1 |
| IA | $144.87 | 1 |
| ID | $145.70 | 1 |
| IL | $148.13–$162.81 | 4 |
| IN | $146.59 | 1 |
| KS | $143.85 | 1 |
| KY | $143.27 | 1 |
| LA | $142.91–$150.24 | 2 |
| MA | $163.32–$181.52 | 2 |
| MD | $158.52–$180.67 | 3 |
| ME | $146.15–$154.78 | 2 |
| MI | $146.82–$154.80 | 2 |
| MN | $158.38 | 1 |
| MO | $140.17–$151.17 | 3 |
| MS | $139.35 | 1 |
| MT | $156.98 | 1 |
| NC | $147.78 | 1 |
| ND | $155.20 | 1 |
| NE | $145.78 | 1 |
| NH | $161.58 | 1 |
| NJ | $169.74–$178.65 | 2 |
| NM | $147.53 | 1 |
| NV | $156.60 | 1 |
| NY | $150.03–$184.57 | 5 |
| OH | $146.46 | 1 |
| OK | $143.34 | 1 |
| OR | $155.61–$170.20 | 2 |
| PA | $146.88–$163.12 | 2 |
| PR | $158.27 | 1 |
| RI | $161.28 | 1 |
| SC | $147.32 | 1 |
| SD | $154.99 | 1 |
| TN | $144.56 | 1 |
| TX | $145.86–$163.74 | 8 |
| UT | $149.40 | 1 |
| VA | $154.04–$180.67 | 2 |
| VI | $158.27 | 1 |
| VT | $154.29 | 1 |
| WA | $163.12–$185.59 | 2 |
| WI | $149.81 | 1 |
| WV | $142.40 | 1 |
| WY | $156.20 | 1 |
How the 23350 rate is calculated
Each of 23350’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 · 23350
RVUs × geographic indexes × conversion factor
Work0.98
0.98 RVUs× 1.000 GPCI
Practice expense3.63
3.63 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
4.7000
Conversion factor
$33.4009
Medicare rate
$156.98
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Iowa inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
2,192
- Code
- 23350
- Physician work
- 0.98
- Practice expense
- 3.63
- Malpractice
- 0.09
GPCI2026.csv
53
- Locality
- Iowa
- Physician work
- 1.000
- Practice expense
- 0.915
- Malpractice
- 0.397
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.98 | × 1.000 | 0.9800 |
| Practice expense | 3.63 | × 0.915 | 3.3215 |
| Malpractice | 0.09 | × 0.397 | 0.0357 |
| Total RVUs | 4.3372 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Iowa$144.87
Office: (0.98 × 1 + 3.63 × 0.915 + 0.09 × 0.397) × $33.4009 = $144.87
Facility: (0.98 × 1 + 0.19 × 0.915 + 0.09 × 0.397) × $33.4009 = $39.73
Payment rules and modifiers for 23350
The CMS indicators that decide how 23350 is paid alongside other services.
CMS payment indicators · 23350
Shoulder injection, for diagnostic imaging
| 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 | 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) | 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 50 · payment effect
With and without the modifier
23350 without 50 · national office
$156.98
Shoulder injection, for diagnostic imaging
23350-50 · Bilateral: 150%
$235.47
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).
How 23350 has changed in Iowa
23350 · Office / nonfacility
$144.87
Effective 2026-10-01
The base rate is $4.14 higher than on 2025-10-01, moving from $140.73 to $144.87 (2.9%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
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
January 1, 2026
RVU26A
$140.73changed to$144.87
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 1.00 changed to 0.98
- Practice expense RVU 3.62 changed to 3.63
- Malpractice RVU 0.10 changed to 0.09
- Practice expense GPCI 0.913 changed to 0.915
- Malpractice GPCI 0.457 changed to 0.397
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$148.78changed to$140.73
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 3.75 changed to 3.62
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$146.35changed to$148.78
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$154.41changed to$146.35
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 3.86 changed to 3.75
- Practice expense GPCI 0.910 changed to 0.913
- Malpractice GPCI 0.441 changed to 0.457
January 1, 2023
RVU23A
$160.85changed to$154.41
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 3.98 changed to 3.86
- Malpractice RVU 0.09 changed to 0.10
- Practice expense GPCI 0.907 changed to 0.910
- Malpractice GPCI 0.425 changed to 0.441
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$156.49changed to$160.85
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 3.80 changed to 3.98
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$144.18changed to$156.49
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 3.26 changed to 3.80
- Malpractice GPCI 0.424 changed to 0.425
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$131.55changed to$144.18
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 2.88 changed to 3.26
- Malpractice GPCI 0.423 changed to 0.424
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$122.59changed to$131.55
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 2.61 changed to 2.88
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$121.86changed to$122.59
- Conversion factor 35.8887 changed to 35.9996
- Practice expense GPCI 0.902 changed to 0.907
- Malpractice GPCI 0.458 changed to 0.423
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
$121.44changed to$121.86
- Conversion factor 35.8043 changed to 35.8887
- Practice expense RVU 2.62 changed to 2.61
- Practice expense GPCI 0.896 changed to 0.902
- Malpractice GPCI 0.493 changed to 0.458
Held through RVU17B, RVU17C, RVU17D.
January 1, 2016
RVU16A
$122.38changed to$121.44
- Conversion factor 35.9335 changed to 35.8043
- Practice expense RVU 2.63 changed to 2.62
- Malpractice RVU 0.10 changed to 0.09
Held through RVU16B, RVU16C, RVU16D.
July 1, 2015
RVU15C
$121.77changed to$122.38
- Conversion factor 35.7547 changed to 35.9335
Held through RVU15D.
January 1, 2015
RVU15A
$119.33changed to$121.77
- Conversion factor 35.8228 changed to 35.7547
- Practice expense RVU 2.56 changed to 2.63
- Practice expense GPCI 0.892 changed to 0.896
- Malpractice GPCI 0.475 changed to 0.493
Held through RVU15B.
January 1, 2014
RVU14A
$118.26changed to$119.33
- Conversion factor 34.0230 changed to 35.8228
- Practice expense RVU 2.74 changed to 2.56
- Practice expense GPCI 0.887 changed to 0.892
- Malpractice GPCI 0.456 changed to 0.475
Held through RVU14B, RVU14C, RVU14D.
January 1, 2013
RVU13AR
Earliest loaded release: $118.26
Held through RVU13B, RVU13C, RVU13D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $144.87 | $39.73 | RVU26D |
| 2026-07-01 | $144.87 | $39.73 | RVU26C |
| 2026-04-01 | $144.87 | $39.73 | RVU26B |
| 2026-01-01 | $144.87 | $39.73 | RVU26A |
| 2025-10-01 | $140.73 | $45.05 | RVU25D |
| 2025-07-01 | $140.73 | $45.05 | RVU25C |
| 2025-04-01 | $140.73 | $45.05 | RVU25B |
| 2025-01-01 | $140.73 | $45.05 | RVU25A |
| 2024-10-01 | $148.78 | $46.05 | RVU24D |
| 2024-07-01 | $148.78 | $46.05 | RVU24C |
| 2024-04-01 | $148.78 | $46.05 | RVU24B |
| 2024-03-09 | $148.78 | $46.05 | RVU24AR |
| 2024-01-01 | $146.35 | $45.30 | RVU24A |
| 2023-10-01 | $154.41 | $47.10 | RVU23D |
| 2023-07-01 | $154.41 | $47.10 | RVU23C |
| 2023-04-01 | $154.41 | $47.10 | RVU23B |
| 2023-01-01 | $154.41 | $47.10 | RVU23A |
| 2022-10-01 | $160.85 | $47.54 | RVU22D |
| 2022-07-01 | $160.85 | $47.54 | RVU22C |
| 2022-04-01 | $160.85 | $47.54 | RVU22B |
| 2022-01-01 | $160.85 | $47.54 | RVU22A |
| 2021-10-01 | $156.49 | $47.94 | RVU21D |
| 2021-07-01 | $156.49 | $47.94 | RVU21C |
| 2021-04-01 | $156.49 | $47.94 | RVU21B |
| 2021-01-01 | $156.49 | $47.94 | RVU21A |
| 2020-10-01 | $144.18 | $49.91 | RVU20D |
| 2020-07-01 | $144.18 | $49.91 | RVU20C |
| 2020-04-01 | $144.18 | $49.91 | RVU20B |
| 2020-01-01 | $144.18 | $49.91 | RVU20A |
| 2019-10-01 | $131.55 | $49.83 | RVU19D |
| 2019-07-01 | $131.55 | $49.83 | RVU19C |
| 2019-04-01 | $131.55 | $49.83 | RVU19B |
| 2019-01-01 | $131.55 | $49.83 | RVU19A |
| 2018-10-01 | $122.59 | $49.78 | RVU18D |
| 2018-07-01 | $122.59 | $49.78 | RVU18C |
| 2018-04-01 | $122.59 | $49.78 | RVU18B |
| 2018-01-01 | $122.59 | $49.78 | RVU18AR1 |
| 2017-10-01 | $121.86 | $49.67 | RVU17D |
| 2017-07-01 | $121.86 | $49.67 | RVU17C |
| 2017-04-01 | $121.86 | $49.67 | RVU17B |
| 2017-01-01 | $121.86 | $49.67 | RVU17A |
| 2016-10-01 | $121.44 | $49.58 | RVU16D |
| 2016-07-01 | $121.44 | $49.58 | RVU16C |
| 2016-04-01 | $121.44 | $49.58 | RVU16B |
| 2016-01-01 | $121.44 | $49.58 | RVU16A |
| 2015-10-01 | $122.38 | $49.94 | RVU15D |
| 2015-07-01 | $122.38 | $49.94 | RVU15C |
| 2015-04-01 | $121.77 | $49.69 | RVU15B |
| 2015-01-01 | $121.77 | $49.69 | RVU15A |
| 2014-10-01 | $119.33 | $49.67 | RVU14D |
| 2014-07-01 | $119.33 | $49.67 | RVU14C |
| 2014-04-01 | $119.33 | $49.67 | RVU14B |
| 2014-01-01 | $119.33 | $49.67 | RVU14A |
| 2013-10-01 | $118.26 | $47.04 | RVU13D |
| 2013-07-01 | $118.26 | $47.04 | RVU13C |
| 2013-04-01 | $118.26 | $47.04 | RVU13B |
| 2013-01-01 | $118.26 | $47.04 | RVU13AR |
Where the Iowa rate applies
Iowa is a Medicare payment area, not a city. Our Census mapping connects it to 1026 cities and communities in Iowa. Some span more than one payment area; confirm with the service ZIP.
- Ackley
- Ackworth
- Adair
- Adel
- Afton
- Agency
- Ainsworth
- Akron
23350 billing questions
How is 23350 different from a therapeutic shoulder injection?
Use 23350 when contrast is injected into the shoulder joint for diagnostic imaging. A therapeutic injection or aspiration of a major joint is reported with a different code, such as 20610, when that service is performed.
Is the imaging examination included in 23350?
No. 23350 reports the contrast injection; report the shoulder arthrography, CT, or MRI examination separately when performed.
How should bilateral shoulder injections be reported?
Report the bilateral procedure with modifier 50. CMS pays the bilateral procedure at 150%.
What documentation supports reporting 23350?
Document the shoulder and side, the diagnostic imaging purpose, and that contrast was administered into the joint. The record should distinguish this diagnostic injection from a therapeutic injection.
Does the 0-day global period include same-day care?
Yes. Same-day preoperative and postoperative care is included in the 0-day global period.
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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