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CPT code 29365: Cylinder cast, knee immobilization2026 Medicare rate & RVUs in Connecticut

Report 29365 when a clinician applies a cylinder cast that immobilizes the knee while leaving the foot uncovered.

CMS RVU26DEffective Oct 1, 2026One payment locality240 Medicare services in 2024

In Connecticut, Medicare pays $148.48 for 29365 in the office and $87.33 when it’s performed in a hospital or facility.

$148.48Office (non-facility)
$87.33Hospital or facility
+6.9%vs the national office rate ($138.95)

Check a contract rate as a % of Medicare · 29365 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 29365 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 29365 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 29365 covers

A cylinder cast stabilizes the knee by extending around the leg above and below the joint, while leaving the foot free. Orthopedic clinicians and emergency physicians may apply one for selected knee injuries, including patellar fractures, when the treatment plan calls for cast immobilization rather than a brace or a cast that includes the foot. The service is typically performed in an office, emergency department, or other setting where the cast can be fitted and molded.

Select 29365 for the cylinder configuration, not solely because the knee is being treated. Document the indication, laterality, and cast extent so the record shows that the foot was left uncovered. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When bilateral casts are reported with modifier 50, CMS pays at 150%. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures at 50%. Assistant-at-surgery payment is restricted; 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 Connecticut compares for 29365

Across 109 of 109 payment localities, the office rate for 29365 runs from $122.13 in Arkansas to $180.65 in San Benito County, CA. Connecticut pays $148.48. The RVUs are the same everywhere; the geographic indexes change the dollars.

29365 in Connecticut vs other payment areas
  1. Connecticut · this page$148.48
  2. Los Angeles, CA · California$154.93+$6.45
  3. Washington, DC area · District of Columbia$158.42+$9.94
  4. Miami, FL · Florida$154.50+$6.02
  5. Chicago, IL · Illinois$149.63+$1.15
  6. Manhattan, NY · New York$160.95+$12.47
  7. Alaska · Alaska$160.74+$12.26

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

Every other payment area

29365 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$124.01$74.32
ArkansasArkansas$122.13$73.35
ArizonaArizona$134.96$79.94
Bakersfield, CACalifornia$145.59$83.36
Chico, CACalifornia$144.95$82.72
El Centro, CACalifornia$144.99$82.76
Fresno, CACalifornia$144.95$82.72
Hanford, CACalifornia$144.95$82.72

29365 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$122.13

$162.80

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

View every state and territory as a table
29365 office rate range by state
State / territoryOffice rate rangeLocalities
AK$160.741
AL$124.011
AR$122.131
AZ$134.961
CA$144.95–$180.6529
CO$143.671
CT$148.481
DC$158.421
DE$137.251
FL$138.73–$154.503
GA$130.39–$142.092
GU$148.431
HI$148.431
IA$126.421
ID$127.471
IL$135.19–$149.634
IN$128.221
KS$126.221
KY$127.991
LA$127.95–$134.512
MA$142.92–$157.692
MD$139.82–$158.423
ME$128.62–$135.282
MI$131.86–$140.972
MN$136.231
MO$125.93–$134.513
MS$124.041
MT$138.931
NC$129.951
ND$134.381
NE$127.021
NH$141.791
NJ$149.77–$156.752
NM$132.781
NV$137.761
NY$132.02–$165.545
OH$130.931
OK$127.301
OR$136.29–$147.902
PA$130.91–$144.932
PR$139.851
RI$141.911
SC$130.741
SD$133.851
TN$126.941
TX$130.05–$143.538
UT$132.591
VA$135.11–$158.422
VI$139.851
VT$134.221
WA$142.53–$160.542
WI$129.731
WV$130.091
WY$136.951

See 29365 in every payment locality

How the 29365 rate is calculated

Each of 29365’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 · 29365

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.15

1.15 RVUs× 1.000 GPCI

Practice expense2.78

2.78 RVUs× 1.000 GPCI

Malpractice0.23

0.23 RVUs× 1.000 GPCI

Adjusted RVUs

4.1600

Conversion factor

$33.4009

Medicare rate

$138.95

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

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

3,290

Code
29365
Physician work
1.15
Practice expense
2.78
Malpractice
0.23

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Office calculation for 29365 in Connecticut
ComponentRVULocality factorAdjusted
Physician work1.15× 1.0201.1730
Practice expense2.78× 1.0772.9941
Malpractice0.23× 1.2100.2783
Total RVUs4.4454
Conversion factor× 33.4009

Office rate, Connecticut$148.48

Office: (1.15 × 1.02 + 2.78 × 1.077 + 0.23 × 1.21) × $33.4009 = $148.48

Facility: (1.15 × 1.02 + 1.08 × 1.077 + 0.23 × 1.21) × $33.4009 = $87.33

Open 29365 in the RVU calculator

Payment rules and modifiers for 29365

The CMS indicators that decide how 29365 is paid alongside other services.

CMS payment indicators · 29365

Cylinder cast, knee immobilization

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)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
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 50 · payment effect

With and without the modifier

29365 without 50 · national office

$138.95

Cylinder cast, knee immobilization

29365-50 · Bilateral: 150%

$208.43

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).

When to use modifier 50

Codes related to 29365

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 29365
CodeHow it relatesOffice range, Connecticut
Used instead
29345Long-leg cast, standard cast applicationLong leg cast application extends to the foot rather than using the cylinder configuration.$158.99
29355Walking cast, long leg, thigh to toesLong leg walking cast application is a different cast configuration for lower-extremity immobilization.$164.96
29358Cast brace, long leg, thigh to toesLong leg cast brace application is a different immobilization option.$195.77

How 29365 has changed in Connecticut

29365 · Office / nonfacility

$148.48

Effective 2026-10-01

The base rate is $14.03 higher than on 2025-10-01, moving from $134.45 to $148.48 (10.4%).

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

    $134.45changed to$148.48

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.18 changed to 1.15
    • Practice expense RVU 2.45 changed to 2.78
    • Work GPCI 1.022 changed to 1.020
    • Practice expense GPCI 1.091 changed to 1.077
    • Malpractice GPCI 1.207 changed to 1.210

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $136.95changed to$134.45

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.40 changed to 2.45
    • Malpractice RVU 0.24 changed to 0.23

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $134.71changed to$136.95

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $136.16changed to$134.71

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 2.32 changed to 2.40
    • Malpractice RVU 0.23 changed to 0.24
    • Work GPCI 1.030 changed to 1.022
    • Practice expense GPCI 1.102 changed to 1.091
    • Malpractice GPCI 1.070 changed to 1.207

  5. January 1, 2023

    RVU23A

    $134.15changed to$136.16

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.18 changed to 2.32
    • Malpractice RVU 0.24 changed to 0.23
    • Work GPCI 1.037 changed to 1.030
    • Practice expense GPCI 1.114 changed to 1.102
    • Malpractice GPCI 0.934 changed to 1.070

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $133.05changed to$134.15

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.14 changed to 2.18
    • Malpractice RVU 0.22 changed to 0.24

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $135.65changed to$133.05

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.06 changed to 2.14
    • Malpractice RVU 0.23 changed to 0.22
    • Work GPCI 1.029 changed to 1.037
    • Practice expense GPCI 1.113 changed to 1.114
    • Malpractice GPCI 1.094 changed to 0.934

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $137.13changed to$135.65

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.09 changed to 2.06
    • Malpractice RVU 0.22 changed to 0.23
    • Work GPCI 1.021 changed to 1.029
    • Practice expense GPCI 1.112 changed to 1.113
    • Malpractice GPCI 1.255 changed to 1.094

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $138.58changed to$137.13

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.13 changed to 2.09

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $137.73changed to$138.58

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 2.11 changed to 2.13
    • Work GPCI 1.023 changed to 1.021
    • Practice expense GPCI 1.117 changed to 1.112
    • Malpractice GPCI 1.244 changed to 1.255

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $137.66changed to$137.73

    • Conversion factor 35.8043 changed to 35.8887
    • Work GPCI 1.024 changed to 1.023
    • Practice expense GPCI 1.121 changed to 1.117
    • Malpractice GPCI 1.232 changed to 1.244

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $138.56changed to$137.66

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 2.12 changed to 2.11

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $137.87changed to$138.56

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $136.96changed to$137.87

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 2.10 changed to 2.12
    • Practice expense GPCI 1.116 changed to 1.121
    • Malpractice GPCI 1.234 changed to 1.232

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $138.77changed to$136.96

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 2.33 changed to 2.10
    • Malpractice RVU 0.23 changed to 0.22
    • Practice expense GPCI 1.110 changed to 1.116
    • Malpractice GPCI 1.235 changed to 1.234

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $138.77

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$148.48$87.33RVU26D
2026-07-01$148.48$87.33RVU26C
2026-04-01$148.48$87.33RVU26B
2026-01-01$148.48$87.33RVU26A
2025-10-01$134.45$92.10RVU25D
2025-07-01$134.45$92.10RVU25C
2025-04-01$134.45$92.10RVU25B
2025-01-01$134.45$92.10RVU25A
2024-10-01$136.95$94.46RVU24D
2024-07-01$136.95$94.46RVU24C
2024-04-01$136.95$94.46RVU24B
2024-03-09$136.95$94.46RVU24AR
2024-01-01$134.71$92.91RVU24A
2023-10-01$136.16$93.97RVU23D
2023-07-01$136.16$93.97RVU23C
2023-04-01$136.16$93.97RVU23B
2023-01-01$136.16$93.97RVU23A
2022-10-01$134.15$94.05RVU22D
2022-07-01$134.15$94.05RVU22C
2022-04-01$134.15$94.05RVU22B
2022-01-01$134.15$94.05RVU22A
2021-10-01$133.05$93.79RVU21D
2021-07-01$133.05$93.79RVU21C
2021-04-01$133.05$93.79RVU21B
2021-01-01$133.05$93.79RVU21A
2020-10-01$135.65$96.68RVU20D
2020-07-01$135.65$96.68RVU20C
2020-04-01$135.65$96.68RVU20B
2020-01-01$135.65$96.68RVU20A
2019-10-01$137.13$97.85RVU19D
2019-07-01$137.13$97.85RVU19C
2019-04-01$137.13$97.85RVU19B
2019-01-01$137.13$97.85RVU19A
2018-10-01$138.58$98.55RVU18D
2018-07-01$138.58$98.55RVU18C
2018-04-01$138.58$98.55RVU18B
2018-01-01$138.58$98.55RVU18AR1
2017-10-01$137.73$98.04RVU17D
2017-07-01$137.73$98.04RVU17C
2017-04-01$137.73$98.04RVU17B
2017-01-01$137.73$98.04RVU17A
2016-10-01$137.66$97.92RVU16D
2016-07-01$137.66$97.92RVU16C
2016-04-01$137.66$97.92RVU16B
2016-01-01$137.66$97.92RVU16A
2015-10-01$138.56$98.27RVU15D
2015-07-01$138.56$98.27RVU15C
2015-04-01$137.87$97.78RVU15B
2015-01-01$137.87$97.78RVU15A
2014-10-01$136.96$97.79RVU14D
2014-07-01$136.96$97.79RVU14C
2014-04-01$136.96$97.79RVU14B
2014-01-01$136.96$97.79RVU14A
2013-10-01$138.77$96.85RVU13D
2013-07-01$138.77$96.85RVU13C
2013-04-01$138.77$96.85RVU13B
2013-01-01$138.77$96.85RVU13AR

Price 29365 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

  • Ansonia
  • Ball Pond
  • Baltic
  • Bantam
  • Bethel
  • Bethlehem Village
  • Bigelow Corners
  • Blue Hills

Browse all communities in Connecticut

29365 billing questions

How does a cylinder cast differ from a long leg cast?

A cylinder cast immobilizes the knee while leaving the foot uncovered. A long leg cast extends to the foot; select based on the cast actually applied.

Can 29365 be reported for casts on both knees?

For bilateral cylinder casts, report modifier 50. CMS pays bilateral procedures at 150%.

Does the 0-day global period include same-day care?

Yes. Same-day preoperative and postoperative care is included in the procedure's 0-day global period.

Can an assistant or co-surgeon be reported?

CMS does not pay an assistant at surgery for this code. Co-surgeons and team surgery are not permitted.

What documentation supports choosing 29365?

Record the knee-related indication, laterality, and cast configuration and extent, including that the foot remains uncovered.

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 29365PPRRVU2026_Oct_nonQPP.csv, line 3,290 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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