CPT code 43450: Esophageal dilation, unguided sound or bougie2026 Medicare rate & RVUs in Tennessee

Unguided bougie or sound dilation treats esophageal narrowing, with one or multiple passes reported as a single service during the session.

CMS RVU26DEffective Oct 1, 2026One payment locality79.4K Medicare services in 2024

In Tennessee, Medicare pays $194.73 for 43450 in the office and $68.43 when it’s performed in a hospital or facility.

$194.73Office (non-facility)
$68.43Hospital or facility
−8.2%vs the national office rate ($212.10)

Check a contract rate as a % of Medicare · 43450 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 43450 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Tennessee
  2. What 43450 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 43450 covers

This service enlarges a narrowed esophageal lumen by passing an unguided tapered sound or bougie through the mouth into the esophagus. Gastroenterologists and other physicians commonly perform it for dysphagia caused by narrowing, such as a benign stricture or ring, in an endoscopy unit, ambulatory surgery center, or hospital. The instrument is passed without a guidewire; one or several passes during the session are part of the same dilation service.

Choose 43450 for unguided sound or bougie dilation. Use 43453 for dilation over a guidewire, and compare endoscopic dilation codes when the procedure uses endoscopic guidance. Document the indication, narrowed site, technique, instrument, and passes. The CMS 0-day global period includes same-day preoperative and postoperative care. When eligible procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. Medicare does not pay for an assistant at surgery for this service; co-surgeon and team-surgery reporting 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 Tennessee compares for 43450

Across 109 of 109 payment localities, the office rate for 43450 runs from $186.35 in Arkansas to $287.44 in San Benito County, CA. Tennessee pays $194.73. The RVUs are the same everywhere; the geographic indexes change the dollars.

43450 in Tennessee vs other payment areas
  1. Tennessee · this page$194.73
  2. Los Angeles, CA · California$242.38+$47.65
  3. Washington, DC area · District of Columbia$244.35+$49.62
  4. Miami, FL · Florida$226.53+$31.80
  5. Chicago, IL · Illinois$219.70+$24.97
  6. Manhattan, NY · New York$244.49+$49.76
  7. Alaska · Alaska$241.47+$46.74

Other areas in Tennessee first, then benchmark localities. Bars start at $0.

Every other payment area

43450 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$189.25$67.68
ArkansasArkansas$186.35$67.00
ArizonaArizona$206.25$71.61
Bakersfield, CACalifornia$226.80$74.52
Chico, CACalifornia$226.35$74.07
El Centro, CACalifornia$226.38$74.09
Fresno, CACalifornia$226.35$74.07
Hanford, CACalifornia$226.35$74.07

43450 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.

$186.35

$256.90

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
43450 office rate range by state
State / territoryOffice rate rangeLocalities
AK$241.471
AL$189.251
AR$186.351
AZ$206.251
CA$226.35–$287.4429
CO$222.081
CT$226.711
DC$244.351
DE$209.811
FL$207.34–$226.533
GA$195.20–$215.872
GU$232.641
HI$232.641
IA$195.021
ID$196.231
IL$200.53–$220.724
IN$197.451
KS$193.741
KY$193.321
LA$192.87–$203.022
MA$220.51–$245.332
MD$214.09–$244.353
ME$196.98–$208.762
MI$198.36–$209.752
MN$213.361
MO$189.15–$204.173
MS$187.811
MT$212.091
NC$199.211
ND$209.121
NE$196.251
NH$218.251
NJ$229.46–$241.522
NM$199.381
NV$211.421
NY$202.34–$250.315
OH$197.751
OK$193.291
OR$209.95–$229.832
PA$198.26–$220.592
PR$213.841
RI$217.801
SC$198.781
SD$208.771
TN$194.731
TX$196.86–$221.208
UT$201.661
VA$207.81–$244.352
VI$213.841
VT$207.971
WA$220.20–$250.802
WI$201.681
WV$192.601
WY$210.791

See 43450 in every payment locality

How the 43450 rate is calculated

Each of 43450’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 · 43450

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.25

1.25 RVUs× 1.000 GPCI

Practice expense4.95

4.95 RVUs× 1.000 GPCI

Malpractice0.15

0.15 RVUs× 1.000 GPCI

Adjusted RVUs

6.3500

Conversion factor

$33.4009

Medicare rate

$212.10

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Tennessee inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,250

Code
43450
Physician work
1.25
Practice expense
4.95
Malpractice
0.15

GPCI2026.csv

95

Locality
Tennessee
Physician work
1.000
Practice expense
0.909
Malpractice
0.537
Office calculation for 43450 in Tennessee
ComponentRVULocality factorAdjusted
Physician work1.25× 1.0001.2500
Practice expense4.95× 0.9094.4996
Malpractice0.15× 0.5370.0805
Total RVUs5.8301
Conversion factor× 33.4009

Office rate, Tennessee$194.73

Office: (1.25 × 1 + 4.95 × 0.909 + 0.15 × 0.537) × $33.4009 = $194.73

Facility: (1.25 × 1 + 0.79 × 0.909 + 0.15 × 0.537) × $33.4009 = $68.43

Open 43450 in the RVU calculator

Payment rules and modifiers for 43450

The CMS indicators that decide how 43450 is paid alongside other services.

CMS payment indicators · 43450

Esophageal dilation, unguided sound or bougie

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

43450 without 51 · national office

$212.10

Esophageal dilation, unguided sound or bougie

43450-51 · Second procedure: 50%

$106.05

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%).

When to use modifier 51

How 43450 has changed in Tennessee

43450 · Office / nonfacility

$194.73

Effective 2026-10-01

The base rate is $29.94 higher than on 2025-10-01, moving from $164.79 to $194.73 (18.2%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

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
  1. January 1, 2026

    RVU26A

    $164.79changed to$194.73

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.28 changed to 1.25
    • Practice expense RVU 4.16 changed to 4.95
    • Malpractice RVU 0.16 changed to 0.15
    • Practice expense GPCI 0.896 changed to 0.909
    • Malpractice GPCI 0.544 changed to 0.537

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $170.18changed to$164.79

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.18 changed to 4.16

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $167.40changed to$170.18

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $173.30changed to$167.40

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.19 changed to 4.18
    • Malpractice RVU 0.17 changed to 0.16
    • Practice expense GPCI 0.894 changed to 0.896
    • Malpractice GPCI 0.518 changed to 0.544
  5. January 1, 2023

    RVU23A

    $179.11changed to$173.30

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.29 changed to 4.19
    • Malpractice RVU 0.14 changed to 0.17
    • Practice expense GPCI 0.892 changed to 0.894
    • Malpractice GPCI 0.492 changed to 0.518

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $177.34changed to$179.11

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 4.18 changed to 4.29
    • Malpractice RVU 0.15 changed to 0.14

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $160.59changed to$177.34

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 3.46 changed to 4.18
    • Malpractice RVU 0.13 changed to 0.15
    • Practice expense GPCI 0.897 changed to 0.892
    • Malpractice GPCI 0.509 changed to 0.492

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $154.88changed to$160.59

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 3.25 changed to 3.46
    • Malpractice RVU 0.17 changed to 0.13
    • Practice expense GPCI 0.901 changed to 0.897
    • Malpractice GPCI 0.526 changed to 0.509

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $147.58changed to$154.88

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 3.03 changed to 3.25

    Held through RVU19B, RVU19C, RVU19D.

  10. April 1, 2018

    RVU18B

    No ratechanged to$147.58

    Held through RVU18C, RVU18D.

  11. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$194.73$68.43RVU26D
2026-07-01$194.73$68.43RVU26C
2026-04-01$194.73$68.43RVU26B
2026-01-01$194.73$68.43RVU26A
2025-10-01$164.79$71.46RVU25D
2025-07-01$164.79$71.46RVU25C
2025-04-01$164.79$71.46RVU25B
2025-01-01$164.79$71.46RVU25A
2024-10-01$170.18$73.24RVU24D
2024-07-01$170.18$73.24RVU24C
2024-04-01$170.18$73.24RVU24B
2024-03-09$170.18$73.24RVU24AR
2024-01-01$167.40$72.05RVU24A
2023-10-01$173.30$73.93RVU23D
2023-07-01$173.30$73.93RVU23C
2023-04-01$173.30$73.93RVU23B
2023-01-01$173.30$73.93RVU23A
2022-10-01$179.11$74.46RVU22D
2022-07-01$179.11$74.46RVU22C
2022-04-01$179.11$74.46RVU22B
2022-01-01$179.11$74.46RVU22A
2021-10-01$177.34$74.63RVU21D
2021-07-01$177.34$74.63RVU21C
2021-04-01$177.34$74.63RVU21B
2021-01-01$177.34$74.63RVU21A
2020-10-01$160.59$76.42RVU20D
2020-07-01$160.59$76.42RVU20C
2020-04-01$160.59$76.42RVU20B
2020-01-01$160.59$76.42RVU20A
2019-10-01$154.88$77.28RVU19D
2019-07-01$154.88$77.28RVU19C
2019-04-01$154.88$77.28RVU19B
2019-01-01$154.88$77.28RVU19A
2018-10-01$147.58$77.84RVU18D
2018-07-01$147.58$77.84RVU18C
2018-04-01$147.58$77.84RVU18B
2018-01-01Rate data unavailableRate data unavailableRVU18AR1
2017-10-01Rate data unavailableRate data unavailableRVU17D
2017-07-01Rate data unavailableRate data unavailableRVU17C
2017-04-01Rate data unavailableRate data unavailableRVU17B
2017-01-01Rate data unavailableRate data unavailableRVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 43450 for an earlier date of service

Where the Tennessee rate applies

Tennessee is a Medicare payment area, not a city. Our Census mapping connects it to 504 cities and communities in Tennessee. Some span more than one payment area; confirm with the service ZIP.

  • Adams
  • Adamsville
  • Alamo
  • Alcoa
  • Alexandria
  • Algood
  • Allardt
  • Altamont

Browse all communities in Tennessee

43450 billing questions

How does 43450 differ from 43453?

43450 describes unguided sound or bougie dilation. When dilation is performed over a guidewire, use 43453.

Is each bougie pass reported as a separate unit?

No. The service includes one or multiple passes during the session; do not report a separate unit for each pass.

Can 43450 be reported for endoscopic balloon dilation?

No. 43450 is for unguided sound or bougie dilation. Endoscopic balloon dilation is represented by a different procedure code.

What documentation supports reporting 43450?

Document the reason for dilation, the esophageal narrowing treated, and that an unguided sound or bougie was used. Record the number of passes as part of the procedure details.

How does the 0-day global period affect the claim?

Same-day preoperative and postoperative care is included in the procedure's global period.

How are other procedures in the same session paid?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other eligible procedures are paid at 50%.

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
RVUs for 43450PPRRVU2026_Oct_nonQPP.csv, line 5,250 (RVU26D)
Geographic factors for TennesseeGPCI2026.csv, line 95 (RVU26D)

Open CMS sourceHow we calculate rates

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