CPT code 93503: Heart catheter, monitoring catheter placement2026 Medicare rate & RVUs in Montana
Reports placement of a flow-directed catheter in the pulmonary artery for hemodynamic monitoring, such as in an intensive care or operative setting.
In Montana, Medicare pays $81.49 for 93503 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 93503 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 93503 covers
A physician places a flow-directed catheter, commonly a Swan-Ganz catheter, through venous access and advances it through the right heart into the pulmonary artery for hemodynamic monitoring. The service is typically performed in an intensive care unit, operating room, or cardiac catheterization setting by a cardiologist, anesthesiologist, or other physician managing a patient who needs invasive monitoring. The purpose is catheter placement and monitoring, not a diagnostic right-heart catheterization study.
Report the service when the record supports placement of the monitoring catheter, including the indication and the catheter’s final position. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. Modifier 50 is inappropriate because the descriptor and anatomy do not support bilateral reporting. Assistant-at-surgery payment requires documented medical necessity; 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 Montana compares for 93503
Across 109 of 109 payment localities, the facility rate for 93503 runs from $76.90 in Wisconsin to $112.04 in Alaska. Montana pays $81.49. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Montana · this page$81.49
- Los Angeles, CA · California$84.04+$2.55
- Washington, DC area · District of Columbia$87.54+$6.05
- Miami, FL · Florida$91.12+$9.63
- Chicago, IL · Illinois$89.79+$8.30
- Manhattan, NY · New York$90.87+$9.38
- Alaska · Alaska$112.04+$30.55
Other areas in Montana first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $77.59 |
| ArkansasArkansas | — | $77.12 |
| ArizonaArizona | — | $80.31 |
| Bakersfield, CACalifornia | — | $81.38 |
| Chico, CACalifornia | — | $80.81 |
| El Centro, CACalifornia | — | $80.84 |
| Fresno, CACalifornia | — | $80.81 |
| Hanford, CACalifornia | — | $80.81 |
| Madera, CACalifornia | — | $80.81 |
| Merced, CACalifornia | — | $80.81 |
| Modesto, CACalifornia | — | $80.81 |
| Napa, CACalifornia | — | $85.94 |
| Oxnard, CACalifornia | — | $82.94 |
| Redding, CACalifornia | — | $80.81 |
| Rest of CaliforniaCalifornia | — | $80.81 |
| Riverside, CACalifornia | — | $82.78 |
| Sacramento, CACalifornia | — | $82.74 |
| Salinas, CACalifornia | — | $82.37 |
| San Diego, CACalifornia | — | $82.73 |
| Marin County, CACalifornia | — | $88.68 |
| San Francisco, CACalifornia | — | $88.47 |
| San Benito County, CACalifornia | — | $90.45 |
| Santa Clara County, CACalifornia | — | $89.61 |
| San Luis Obispo, CACalifornia | — | $81.26 |
| Santa Cruz, CACalifornia | — | $82.30 |
| Santa Maria, CACalifornia | — | $82.25 |
| Santa Rosa, CACalifornia | — | $83.02 |
| Stockton, CACalifornia | — | $80.81 |
| Vallejo, CACalifornia | — | $85.64 |
| Visalia, CACalifornia | — | $80.81 |
| Yuba City, CACalifornia | — | $80.81 |
| ColoradoColorado | — | $81.63 |
| ConnecticutConnecticut | — | $84.86 |
| DelawareDelaware | — | $81.09 |
| Fort Lauderdale, FLFlorida | — | $86.49 |
| Rest of FloridaFlorida | — | $84.07 |
| Atlanta, GAGeorgia | — | $83.07 |
| Rest of GeorgiaGeorgia | — | $81.53 |
| Hawaii, Guam, HIHawaii | — | $80.39 |
| IowaIowa | — | $76.99 |
| IdahoIdaho | — | $77.50 |
| East St. Louis, ILIllinois | — | $86.77 |
| Rest of IllinoisIllinois | — | $83.98 |
| Suburban Chicago, ILIllinois | — | $86.88 |
| IndianaIndiana | — | $77.65 |
| KansasKansas | — | $77.52 |
| KentuckyKentucky | — | $79.84 |
| New Orleans, LALouisiana | — | $81.70 |
| Rest of LouisianaLouisiana | — | $80.05 |
| Metropolitan Boston, MAMassachusetts | — | $85.52 |
| Rest of MassachusettsMassachusetts | — | $81.87 |
| Baltimore area, MDMaryland | — | $84.72 |
| Rest of MarylandMaryland | — | $81.78 |
| Rest of MaineMaine | — | $78.40 |
| Southern Maine, MEMaine | — | $79.19 |
| Detroit, MIMichigan | — | $85.26 |
| Rest of MichiganMichigan | — | $81.37 |
| MinnesotaMinnesota | — | $77.57 |
| Metropolitan Kansas City, MOMissouri | — | $80.73 |
| Metropolitan St. Louis, MOMissouri | — | $81.01 |
| Rest of MissouriMissouri | — | $79.91 |
| MississippiMississippi | — | $78.49 |
| North CarolinaNorth Carolina | — | $78.63 |
| North DakotaNorth Dakota | — | $77.93 |
| NebraskaNebraska | — | $76.96 |
| New HampshireNew Hampshire | — | $81.17 |
| Northern New JerseyNew Jersey | — | $87.67 |
| Rest of New JerseyNew Jersey | — | $85.64 |
| New MexicoNew Mexico | — | $81.85 |
| NevadaNevada | — | $80.50 |
| NYC suburbs and Long Island, NYNew York | — | $92.78 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $86.68 |
| Queens, NYNew York | — | $90.21 |
| Rest of New YorkNew York | — | $79.19 |
| OhioOhio | — | $80.65 |
| OklahomaOklahoma | — | $79.05 |
| Portland, OROregon | — | $82.15 |
| Rest of OregonOregon | — | $79.67 |
| Metropolitan Philadelphia, PAPennsylvania | — | $84.26 |
| Rest of PennsylvaniaPennsylvania | — | $80.32 |
| Puerto RicoPuerto Rico | — | $81.52 |
| Rhode IslandRhode Island | — | $82.43 |
| South CarolinaSouth Carolina | — | $79.81 |
| South DakotaSouth Dakota | — | $77.51 |
| TennesseeTennessee | — | $77.77 |
| Austin, TXTexas | — | $81.54 |
| Beaumont, TXTexas | — | $80.14 |
| Brazoria, TXTexas | — | $80.60 |
| Dallas, TXTexas | — | $81.19 |
| Fort Worth, TXTexas | — | $81.16 |
| Galveston, TXTexas | — | $80.91 |
| Houston, TXTexas | — | $84.21 |
| Rest of TexasTexas | — | $80.39 |
| UtahUtah | — | $80.26 |
| VirginiaVirginia | — | $79.55 |
| Virgin Islands, VIUnited States Virgin Islands | — | $81.52 |
| VermontVermont | — | $78.42 |
| Rest of WashingtonWashington | — | $81.46 |
| King County, WAWashington | — | $86.00 |
| WisconsinWisconsin | — | $76.90 |
| West VirginiaWest Virginia | — | $82.73 |
| WyomingWyoming | — | $79.94 |
93503 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 93503 rate is calculated
Each of 93503’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 · 93503
RVUs × geographic indexes × conversion factor
Work1.95
1.95 RVUs× 1.000 GPCI
Practice expense0.31
0.31 RVUs× 1.000 GPCI
Malpractice0.18
0.18 RVUs× 1.000 GPCI
Adjusted RVUs
2.4400
Conversion factor
$33.4009
Medicare rate
$81.50
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Montana inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
12,129
- Code
- 93503
- Physician work
- 1.95
- Practice expense
- 0.31
- Malpractice
- 0.18
GPCI2026.csv
71
- Locality
- Montana
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.998
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.95 | × 1.000 | 1.9500 |
| Practice expense | 0.31 | × 1.000 | 0.3100 |
| Malpractice | 0.18 | × 0.998 | 0.1796 |
| Total RVUs | 2.4396 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Montana$81.49
Facility: (1.95 × 1 + 0.31 × 1 + 0.18 × 0.998) × $33.4009 = $81.49
Payment rules and modifiers for 93503
The CMS indicators that decide how 93503 is paid alongside other services.
CMS payment indicators · 93503
Heart catheter, monitoring catheter placement
| 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 | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
How 93503 has changed in Montana
93503 · 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 | $81.49 | RVU26D |
| 2026-07-01 | Not available in this setting | $81.49 | RVU26C |
| 2026-04-01 | Not available in this setting | $81.49 | RVU26B |
| 2026-01-01 | Not available in this setting | $81.49 | RVU26A |
| 2025-10-01 | Not available in this setting | $83.33 | RVU25D |
| 2025-07-01 | Not available in this setting | $83.33 | RVU25C |
| 2025-04-01 | Not available in this setting | $83.33 | RVU25B |
| 2025-01-01 | Not available in this setting | $83.33 | RVU25A |
| 2024-10-01 | Not available in this setting | $85.42 | RVU24D |
| 2024-07-01 | Not available in this setting | $85.42 | RVU24C |
| 2024-04-01 | Not available in this setting | $85.42 | RVU24B |
| 2024-03-09 | Not available in this setting | $85.42 | RVU24AR |
| 2024-01-01 | Not available in this setting | $84.02 | RVU24A |
| 2023-10-01 | Not available in this setting | $87.29 | RVU23D |
| 2023-07-01 | Not available in this setting | $87.29 | RVU23C |
| 2023-04-01 | Not available in this setting | $87.29 | RVU23B |
| 2023-01-01 | Not available in this setting | $87.29 | RVU23A |
| 2022-10-01 | Not available in this setting | $89.13 | RVU22D |
| 2022-07-01 | Not available in this setting | $89.13 | RVU22C |
| 2022-04-01 | Not available in this setting | $89.13 | RVU22B |
| 2022-01-01 | Not available in this setting | $89.13 | RVU22A |
| 2021-10-01 | Not available in this setting | $88.84 | RVU21D |
| 2021-07-01 | Not available in this setting | $88.84 | RVU21C |
| 2021-04-01 | Not available in this setting | $88.84 | RVU21B |
| 2021-01-01 | Not available in this setting | $88.84 | RVU21A |
| 2020-10-01 | Not available in this setting | $94.00 | RVU20D |
| 2020-07-01 | Not available in this setting | $94.00 | RVU20C |
| 2020-04-01 | Not available in this setting | $94.00 | RVU20B |
| 2020-01-01 | Not available in this setting | $94.00 | RVU20A |
| 2019-10-01 | Not available in this setting | $95.77 | RVU19D |
| 2019-07-01 | Not available in this setting | $95.77 | RVU19C |
| 2019-04-01 | Not available in this setting | $95.77 | RVU19B |
| 2019-01-01 | Not available in this setting | $95.77 | RVU19A |
| 2018-10-01 | Not available in this setting | $111.50 | RVU18D |
| 2018-07-01 | Not available in this setting | $111.50 | RVU18C |
| 2018-04-01 | Not available in this setting | $111.50 | RVU18B |
| 2018-01-01 | Not available in this setting | $111.50 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $136.28 | RVU17D |
| 2017-07-01 | Not available in this setting | $136.28 | RVU17C |
| 2017-04-01 | Not available in this setting | $136.28 | RVU17B |
| 2017-01-01 | Not available in this setting | $136.28 | RVU17A |
| 2016-10-01 | Not available in this setting | $134.50 | RVU16D |
| 2016-07-01 | Not available in this setting | $134.50 | RVU16C |
| 2016-04-01 | Not available in this setting | $134.50 | RVU16B |
| 2016-01-01 | Not available in this setting | $134.50 | RVU16A |
| 2015-10-01 | Not available in this setting | $135.07 | RVU15D |
| 2015-07-01 | Not available in this setting | $135.07 | RVU15C |
| 2015-04-01 | Not available in this setting | $134.39 | RVU15B |
| 2015-01-01 | Not available in this setting | $134.39 | RVU15A |
| 2014-10-01 | Not available in this setting | $134.80 | RVU14D |
| 2014-07-01 | Not available in this setting | $134.80 | RVU14C |
| 2014-04-01 | Not available in this setting | $134.80 | RVU14B |
| 2014-01-01 | Not available in this setting | $134.80 | RVU14A |
| 2013-10-01 | Not available in this setting | $129.55 | RVU13D |
| 2013-07-01 | Not available in this setting | $129.55 | RVU13C |
| 2013-04-01 | Not available in this setting | $129.55 | RVU13B |
| 2013-01-01 | Not available in this setting | $129.55 | RVU13AR |
Where the Montana rate applies
Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.
- Absarokee
- Acton
- Alberton
- Alder
- Alzada
- Amsterdam
- Anaconda-Deer Lodge County
- Antelope
93503 billing questions
How is this different from a diagnostic right-heart catheterization?
This code describes placing a flow-directed catheter for monitoring. A diagnostic right-heart catheterization, such as 93451, is selected when the physician performs a diagnostic hemodynamic study.
Does the record need to identify the catheter’s final position?
Yes. Document the monitoring indication, the placement procedure, and the catheter’s final position in the pulmonary artery.
Can modifier 50 be reported?
No. CMS identifies bilateral adjustment as inappropriate for this code because the descriptor and anatomy do not support bilateral reporting.
Can an assistant-at-surgery be paid?
Assistant-at-surgery payment is allowed only when the record documents medical necessity. CMS does not permit co-surgeons or team surgery for this code.
What care is included in the global period?
The 0-day global period includes same-day preoperative and 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
Fee sheets
Put 93503 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Build my fee sheet