FeeBase
Log inGet started
Menu

CPT code 21083: Palatal lift prosthesis, impression and custom preparation2026 Medicare rate & RVUs in Oxnard, CA

Reports impression and custom preparation of a palatal lift prosthesis to elevate a weak or poorly mobile soft palate and improve velopharyngeal closure.

CMS RVU26DEffective Oct 1, 2026One payment locality23 Medicare services in 2024

In Oxnard, CA, Medicare pays $1,531.81 for 21083 in the office and $945.93 when it’s performed in a hospital or facility.

$1,531.81Office (non-facility)
$945.93Hospital or facility
+8.5%vs the national office rate ($1,411.52)

Check a contract rate as a % of Medicare · 21083 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 21083 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Oxnard, CA
  2. What 21083 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 21083 covers

A palatal lift prosthesis raises the soft palate when it cannot move adequately, helping close the passage between the nose and mouth during speech. It is used for velopharyngeal dysfunction, including weakness or paralysis of the palate, and is typically prepared by a dental or maxillofacial prosthetic provider. The service involves taking an impression and custom-preparing the device for the patient; it is distinct from a prosthesis that adds bulk to the palate.

Report this code when the service is for a custom palatal lift, not a palatal augmentation or another oral prosthesis. Documentation should identify the functional problem and support the need for the lift, along with the impression and custom preparation performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and the others at 50%. Modifier 50 is inappropriate. 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 Oxnard, CA compares for 21083

Across 109 of 109 payment localities, the office rate for 21083 runs from $1,276.40 in Arkansas to $1,762.29 in San Benito County, CA. Oxnard, CA pays $1,531.81. The RVUs are the same everywhere; the geographic indexes change the dollars.

21083 in Oxnard, CA vs other payment areas
  1. Oxnard, CA · this page$1,531.81
  2. Bakersfield, CA · California$1,463.89−$67.92
  3. Chico, CA · California$1,457.42−$74.39
  4. El Centro, CA · California$1,457.78−$74.03
  5. Fresno, CA · California$1,457.42−$74.39
  6. Hanford, CA · California$1,457.42−$74.39
  7. Los Angeles, CA · California$1,543.61+$11.80

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

Every other payment area

21083 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$1,457.42$914.17
Merced, CACalifornia$1,457.42$914.17
Modesto, CACalifornia$1,457.42$914.17
Napa, CACalifornia$1,642.45$989.16
Redding, CACalifornia$1,457.42$914.17
Rest of CaliforniaCalifornia$1,457.42$914.17
Riverside, CACalifornia$1,480.71$937.45
Sacramento, CACalifornia$1,517.08$940.61

21083 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.

$1,276.40

$1,739.54

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

View every state and territory as a table
21083 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,739.541
AL$1,291.451
AR$1,276.401
AZ$1,379.141
CA$1,457.42–$1,762.2929
CO$1,449.001
CT$1,493.941
DC$1,580.301
DE$1,398.891
FL$1,416.13–$1,550.023
GA$1,348.30–$1,439.172
GU$1,479.031
HI$1,479.031
IA$1,307.861
ID$1,316.861
IL$1,389.78–$1,512.044
IN$1,322.771
KS$1,307.671
KY$1,326.371
LA$1,326.59–$1,379.212
MA$1,444.81–$1,567.602
MD$1,420.49–$1,580.303
ME$1,327.51–$1,378.732
MI$1,358.76–$1,435.622
MN$1,381.861
MO$1,311.35–$1,377.473
MS$1,293.841
MT$1,411.381
NC$1,337.981
ND$1,369.061
NE$1,312.201
NH$1,431.801
NJ$1,509.10–$1,569.912
NM$1,366.761
NV$1,400.301
NY$1,354.67–$1,647.605
OH$1,350.111
OK$1,319.351
OR$1,387.44–$1,482.352
PA$1,349.17–$1,465.822
PR$1,418.291
RI$1,439.241
SC$1,346.651
SD$1,364.061
TN$1,313.601
TX$1,342.33–$1,445.958
UT$1,361.481
VA$1,378.40–$1,580.302
VI$1,418.291
VT$1,369.091
WA$1,440.36–$1,591.552
WI$1,332.141
WV$1,349.001
WY$1,392.941

See 21083 in every payment locality

How the 21083 rate is calculated

Each of 21083’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 · 21083

RVUs × geographic indexes × conversion factor

Office or facility?

Work18.79

18.79 RVUs× 1.000 GPCI

Practice expense21.33

21.33 RVUs× 1.000 GPCI

Malpractice2.14

2.14 RVUs× 1.000 GPCI

Adjusted RVUs

42.2600

Conversion factor

$33.4009

Medicare rate

$1,411.52

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

The exact Oxnard, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

1,867

Code
21083
Physician work
18.79
Practice expense
21.33
Malpractice
2.14

GPCI2026.csv

18

Locality
Oxnard, CA
Physician work
1.028
Practice expense
1.182
Malpractice
0.623
Office calculation for 21083 in Oxnard, CA
ComponentRVULocality factorAdjusted
Physician work18.79× 1.02819.3161
Practice expense21.33× 1.18225.2121
Malpractice2.14× 0.6231.3332
Total RVUs45.8614
Conversion factor× 33.4009

Office rate, Oxnard, CA$1531.81

Office: (18.79 × 1.028 + 21.33 × 1.182 + 2.14 × 0.623) × $33.4009 = $1531.81

Facility: (18.79 × 1.028 + 6.49 × 1.182 + 2.14 × 0.623) × $33.4009 = $945.93

Open 21083 in the RVU calculator

Payment rules and modifiers for 21083

21083 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 21083

Palatal lift prosthesis, impression and custom preparation

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are 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)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 21083

Palatal lift prosthesis, impression and custom preparation

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

21083 without 51 · national office

$1,411.52

Palatal lift prosthesis, impression and custom preparation

21083-51 · Second procedure: 50%

$705.76

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

Codes related to 21083

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

Codes related to 21083
CodeHow it relatesOffice range, Oxnard, CA
Same family
21082Palatal prosthesis, augmentation for tongue contactPalatal prosthesis sibling that adds contour rather than lifting the palate.$1,621.74
21084Speech aid prosthesis, impression and custom preparationRelated custom prosthetic service for a speech aid.$1,744.29
21080Obturator prosthesis, definitive obturatorDefinitive obturator service for a different oral prosthetic need.$1,864.67
21079Obturator prosthesis, interim obturatorInterim obturator service, rather than a palatal lift.$1,639.21

How 21083 has changed in Oxnard, CA

21083 · Office / nonfacility

$1531.81

Effective 2026-10-01

The base rate is $64.12 higher than on 2025-10-01, moving from $1467.69 to $1531.81 (4.4%).

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

    $1467.69changed to$1531.81

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 19.27 changed to 18.79
    • Practice expense RVU 20.63 changed to 21.33
    • Malpractice RVU 1.84 changed to 2.14
    • Work GPCI 1.026 changed to 1.028
    • Practice expense GPCI 1.183 changed to 1.182
    • Malpractice GPCI 0.651 changed to 0.623

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $1472.80changed to$1467.69

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 19.67 changed to 20.63
    • Malpractice RVU 1.85 changed to 1.84

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1448.77changed to$1472.80

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1481.46changed to$1448.77

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 19.21 changed to 19.67
    • Malpractice RVU 1.80 changed to 1.85
    • Work GPCI 1.027 changed to 1.026
    • Practice expense GPCI 1.181 changed to 1.183
    • Malpractice GPCI 0.689 changed to 0.651

  5. January 1, 2023

    RVU23A

    $1486.88changed to$1481.46

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 18.61 changed to 19.21
    • Malpractice RVU 1.70 changed to 1.80
    • Practice expense GPCI 1.179 changed to 1.181
    • Malpractice GPCI 0.726 changed to 0.689

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $1501.39changed to$1486.88

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 18.70 changed to 18.61
    • Malpractice RVU 1.64 changed to 1.70

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1584.40changed to$1501.39

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 19.51 changed to 18.70
    • Work GPCI 1.026 changed to 1.027
    • Practice expense GPCI 1.178 changed to 1.179
    • Malpractice GPCI 0.700 changed to 0.726

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $1666.55changed to$1584.40

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 20.66 changed to 19.51
    • Malpractice RVU 3.29 changed to 1.64
    • Work GPCI 1.024 changed to 1.026
    • Practice expense GPCI 1.176 changed to 1.178
    • Malpractice GPCI 0.673 changed to 0.700

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $1724.72changed to$1666.55

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 22.10 changed to 20.66
    • Malpractice RVU 3.25 changed to 3.29

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $1768.87changed to$1724.72

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 22.96 changed to 22.10
    • Work GPCI 1.027 changed to 1.024
    • Practice expense GPCI 1.178 changed to 1.176
    • Malpractice GPCI 0.754 changed to 0.673

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $1793.42changed to$1768.87

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 23.31 changed to 22.96
    • Malpractice RVU 3.28 changed to 3.25
    • Work GPCI 1.030 changed to 1.027
    • Practice expense GPCI 1.180 changed to 1.178
    • Malpractice GPCI 0.834 changed to 0.754

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $1803.35changed to$1793.42

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 23.42 changed to 23.31
    • Malpractice RVU 3.24 changed to 3.28

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $1794.38changed to$1803.35

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $1750.54changed to$1794.38

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 23.62 changed to 23.42
    • Malpractice RVU 1.31 changed to 3.24
    • Work GPCI 1.032 changed to 1.030
    • Practice expense GPCI 1.187 changed to 1.180
    • Malpractice GPCI 0.720 changed to 0.834

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $1728.16changed to$1750.54

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 25.18 changed to 23.62
    • Malpractice RVU 1.37 changed to 1.31
    • Work GPCI 1.034 changed to 1.032
    • Practice expense GPCI 1.193 changed to 1.187
    • Malpractice GPCI 0.605 changed to 0.720

    Held through RVU14B, RVU14C, RVU14D.

  16. October 1, 2013

    RVU13D

    No ratechanged to$1728.16

  17. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,531.81$945.93RVU26D
2026-07-01$1,531.81$945.93RVU26C
2026-04-01$1,531.81$945.93RVU26B
2026-01-01$1,531.81$945.93RVU26A
2025-10-01$1,467.69$1,074.32RVU25D
2025-07-01$1,467.69$1,074.32RVU25C
2025-04-01$1,467.69$1,074.32RVU25B
2025-01-01$1,467.69$1,074.32RVU25A
2024-10-01$1,472.80$1,078.62RVU24D
2024-07-01$1,472.80$1,078.62RVU24C
2024-04-01$1,472.80$1,078.62RVU24B
2024-03-09$1,472.80$1,078.62RVU24AR
2024-01-01$1,448.77$1,061.02RVU24A
2023-10-01$1,481.46$1,093.66RVU23D
2023-07-01$1,481.46$1,093.66RVU23C
2023-04-01$1,481.46$1,093.66RVU23B
2023-01-01$1,481.46$1,093.66RVU23A
2022-10-01$1,486.88$1,103.76RVU22D
2022-07-01$1,486.88$1,103.76RVU22C
2022-04-01$1,486.88$1,103.76RVU22B
2022-01-01$1,486.88$1,103.76RVU22A
2021-10-01$1,501.39$1,124.97RVU21D
2021-07-01$1,501.39$1,124.97RVU21C
2021-04-01$1,501.39$1,124.97RVU21B
2021-01-01$1,501.39$1,124.97RVU21A
2020-10-01$1,584.40$1,209.43RVU20D
2020-07-01$1,584.40$1,209.43RVU20C
2020-04-01$1,584.40$1,209.43RVU20B
2020-01-01$1,584.40$1,209.43RVU20A
2019-10-01$1,666.55$1,288.50RVU19D
2019-07-01$1,666.55$1,288.50RVU19C
2019-04-01$1,666.55$1,288.50RVU19B
2019-01-01$1,666.55$1,288.50RVU19A
2018-10-01$1,724.72$1,340.73RVU18D
2018-07-01$1,724.72$1,340.73RVU18C
2018-04-01$1,724.72$1,340.73RVU18B
2018-01-01$1,724.72$1,340.73RVU18AR1
2017-10-01$1,768.87$1,374.00RVU17D
2017-07-01$1,768.87$1,374.00RVU17C
2017-04-01$1,768.87$1,374.00RVU17B
2017-01-01$1,768.87$1,374.00RVU17A
2016-10-01$1,793.42$1,396.28RVU16D
2016-07-01$1,793.42$1,396.28RVU16C
2016-04-01$1,793.42$1,396.28RVU16B
2016-01-01$1,793.42$1,396.28RVU16A
2015-10-01$1,803.35$1,404.36RVU15D
2015-07-01$1,803.35$1,404.36RVU15C
2015-04-01$1,794.38$1,397.37RVU15B
2015-01-01$1,794.38$1,397.37RVU15A
2014-10-01$1,750.54$1,353.82RVU14D
2014-07-01$1,750.54$1,353.82RVU14C
2014-04-01$1,750.54$1,353.82RVU14B
2014-01-01$1,750.54$1,353.82RVU14A
2013-10-01$1,728.16$1,312.11RVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 21083 for an earlier date of service

Where the Oxnard, CA rate applies

Oxnard, CA is a Medicare payment area, not a city. Our Census mapping connects it to 26 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Oxnard
  • Thousand Oaks
  • Bell Canyon
  • Camarillo
  • Casa Conejo
  • Channel Islands Beach
  • El Rio
  • Fillmore

Browse all communities in California

21083 billing questions

How is a palatal lift different from palatal augmentation?

A lift raises a poorly mobile soft palate to help close the velopharyngeal passage. Palatal augmentation changes the palate’s contour to improve contact with the tongue.

What documentation supports reporting this code?

Document the palatal functional deficit and why a lift is needed, plus the impression and custom preparation performed for the patient.

Should modifier 50 be reported?

No. CMS identifies bilateral adjustment as inappropriate for this code.

How does the 90-day global period affect billing?

The day-before preoperative visit and 90 days of related postoperative care are included in the global period.

Can an assistant or another surgeon be reported?

Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeons and team surgery are not permitted.

What happens when another procedure is performed in the same session?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other 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 21083PPRRVU2026_Oct_nonQPP.csv, line 1,867 (RVU26D)
Geographic factors for Oxnard, CAGPCI2026.csv, line 18 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 21083 pays in Oxnard, CA?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 21083 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist