CPT code 28299: Bunion correction, double osteotomy2026 Medicare rate & RVUs in South Carolina

Reports surgical correction of hallux valgus using two osteotomies, typically addressing deformity at the first metatarsal and proximal phalanx.

CMS RVU26DEffective Oct 1, 2026One payment locality7.6K Medicare services in 2024

In South Carolina, Medicare pays $977.87 for 28299 in the office and $540.85 when it’s performed in a hospital or facility.

$977.87Office (non-facility)

$540.85Hospital or facility

−5.7%vs the national office rate ($1,036.43)

Check a contract rate as a % of Medicare · 28299 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

Rate in South Carolina
What 28299 covers
Compared with other areas
Rate map
How it’s calculated
Payment rules
Related codes
Rate history
Where it applies
Billing questions
Sources

What 28299 covers

A foot and ankle surgeon performs two bone cuts to correct hallux valgus, the deformity commonly called a bunion. The procedure may address the first metatarsal and proximal phalanx to realign the great toe and improve its position. It is generally performed in an operating room or ambulatory surgery setting for a symptomatic deformity requiring more than one osteotomy.

Report 28299 when the operative plan and record support a double-osteotomy correction, rather than a single osteotomy or a first tarsometatarsal joint fusion. Document the deformity, the bones and sites treated, and the osteotomies performed. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is 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 South Carolina compares for 28299

Across 109 of 109 payment localities, the office rate for 28299 runs from $919.98 in Arkansas to $1,359.87 in San Benito County, CA. South Carolina pays $977.87. The RVUs are the same everywhere; the geographic indexes change the dollars.

28299 in South Carolina vs other payment areas

South Carolina · this page$977.87
Los Angeles, CA · California$1,163.54+$185.67
Washington, DC area · District of Columbia$1,180.94+$203.07
Miami, FL · Florida$1,122.68+$144.81
Chicago, IL · Illinois$1,090.91+$113.04
Manhattan, NY · New York$1,190.68+$212.81
Alaska · Alaska$1,216.03+$238.16

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

Every other payment area

28299 in every other Medicare payment locality
Payment locality	Office	Facility
AlabamaAlabama	$933.04	$519.20
ArkansasArkansas	$919.98	$513.71
ArizonaArizona	$1,009.42	$551.12
Bakersfield, CACalifornia	$1,094.25	$575.88
Chico, CACalifornia	$1,090.88	$572.52
El Centro, CACalifornia	$1,091.07	$572.71
Fresno, CACalifornia	$1,090.88	$572.52
Hanford, CACalifornia	$1,090.88	$572.52
Madera, CACalifornia	$1,090.88	$572.52
Merced, CACalifornia	$1,090.88	$572.52
Modesto, CACalifornia	$1,090.88	$572.52
Napa, CACalifornia	$1,258.28	$634.92
Oxnard, CACalifornia	$1,157.36	$598.32
Redding, CACalifornia	$1,090.88	$572.52
Rest of CaliforniaCalifornia	$1,090.88	$572.52
Riverside, CACalifornia	$1,103.15	$584.79
Sacramento, CACalifornia	$1,143.27	$593.22
Salinas, CACalifornia	$1,138.97	$590.82
San Diego, CACalifornia	$1,164.65	$599.00
Marin County, CACalifornia	$1,330.15	$663.28
San Francisco, CACalifornia	$1,328.87	$662.00
San Benito County, CACalifornia	$1,359.87	$677.87
Santa Clara County, CACalifornia	$1,354.62	$672.62
San Luis Obispo, CACalifornia	$1,120.82	$582.12
Santa Cruz, CACalifornia	$1,174.93	$600.29
Santa Maria, CACalifornia	$1,142.94	$591.47
Santa Rosa, CACalifornia	$1,186.70	$605.91
Stockton, CACalifornia	$1,090.88	$572.52
Vallejo, CACalifornia	$1,256.43	$633.07
Visalia, CACalifornia	$1,090.88	$572.52
Yuba City, CACalifornia	$1,090.88	$572.52
ColoradoColorado	$1,076.34	$573.12
ConnecticutConnecticut	$1,104.01	$594.63
DelawareDelaware	$1,025.78	$558.50
Fort Lauderdale, FLFlorida	$1,075.98	$596.87
Rest of FloridaFlorida	$1,024.79	$572.64
Atlanta, GAGeorgia	$1,056.06	$575.54
Rest of GeorgiaGeorgia	$968.50	$546.62
Hawaii, Guam, HIHawaii	$1,115.90	$578.15
IowaIowa	$954.50	$521.75
IdahoIdaho	$960.85	$525.73
East St. Louis, ILIllinois	$1,019.02	$583.90
Rest of IllinoisIllinois	$997.12	$565.31
Suburban Chicago, ILIllinois	$1,086.48	$600.75
IndianaIndiana	$966.22	$527.79
KansasKansas	$950.89	$523.33
KentuckyKentucky	$955.96	$535.50
New Orleans, LALouisiana	$1,000.49	$555.44
Rest of LouisianaLouisiana	$954.80	$536.23
Metropolitan Boston, MAMassachusetts	$1,179.72	$615.01
Rest of MassachusettsMassachusetts	$1,070.50	$572.48
Baltimore area, MDMaryland	$1,101.03	$593.55
Rest of MarylandMaryland	$1,044.71	$566.08
Rest of MaineMaine	$966.48	$531.36
Southern Maine, MEMaine	$1,016.24	$547.54
Detroit, MIMichigan	$1,037.96	$581.56
Rest of MichiganMichigan	$980.74	$548.93
MinnesotaMinnesota	$1,030.05	$543.37
Metropolitan Kansas City, MOMissouri	$993.10	$548.99
Metropolitan St. Louis, MOMissouri	$1,003.09	$552.84
Rest of MissouriMissouri	$939.39	$531.70
MississippiMississippi	$929.82	$522.61
MontanaMontana	$1,036.35	$563.40
North CarolinaNorth Carolina	$976.17	$534.90
North DakotaNorth Dakota	$1,014.01	$541.05
NebraskaNebraska	$959.36	$522.82
New HampshireNew Hampshire	$1,060.25	$567.90
Northern New JerseyNew Jersey	$1,169.43	$620.80
Rest of New JerseyNew Jersey	$1,116.23	$599.77
New MexicoNew Mexico	$986.24	$552.54
NevadaNevada	$1,030.82	$557.39
NYC suburbs and Long Island, NYNew York	$1,219.70	$657.36
Poughkeepsie and northern NYC suburbs, NYNew York	$1,124.10	$606.21
Queens, NYNew York	$1,199.17	$640.13
Rest of New YorkNew York	$990.42	$541.11
OhioOhio	$976.17	$544.36
OklahomaOklahoma	$953.53	$531.18
Portland, OROregon	$1,108.87	$583.42
Rest of OregonOregon	$1,022.44	$551.37
Metropolitan Philadelphia, PAPennsylvania	$1,077.70	$585.35
Rest of PennsylvaniaPennsylvania	$977.28	$543.10
Puerto RicoPuerto Rico	$1,043.52	$565.36
Rhode IslandRhode Island	$1,061.07	$572.51
South DakotaSouth Dakota	$1,011.37	$538.41
TennesseeTennessee	$955.61	$525.69
Austin, TXTexas	$1,073.10	$572.72
Beaumont, TXTexas	$971.10	$540.71
Brazoria, TXTexas	$1,024.28	$555.58
Dallas, TXTexas	$1,031.01	$559.94
Fort Worth, TXTexas	$1,024.54	$558.20
Galveston, TXTexas	$1,027.49	$557.84
Houston, TXTexas	$1,048.17	$578.52
Rest of TexasTexas	$997.27	$548.43
UtahUtah	$990.82	$546.24
VirginiaVirginia	$1,013.50	$548.58
Virgin Islands, VIUnited States Virgin Islands	$1,043.52	$565.36
VermontVermont	$1,010.82	$542.60
Rest of WashingtonWashington	$1,068.24	$570.21
King County, WAWashington	$1,202.66	$622.34
WisconsinWisconsin	$981.08	$527.98
West VirginiaWest Virginia	$961.51	$550.51
WyomingWyoming	$1,026.62	$553.66

28299 rates by state

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

ME WI VT NH MT ND MN MI NY MA RI WA ID WY SD IA IL IN OH PA NJ CT OR NV UT CO NE MO KY WV VA MD DE CA AZ NM KS OK AR TN NC SC DC TX LA MS AL GA FL AK HI

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.

$919.98

$1,225.38

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

View every state and territory as a table

28299 office rate range by state
State / territory	Office rate range	Localities
AK	$1,216.03	1
AL	$933.04	1
AR	$919.98	1
AZ	$1,009.42	1
CA	$1,090.88–$1,359.87	29
CO	$1,076.34	1
CT	$1,104.01	1
DC	$1,180.94	1
DE	$1,025.78	1
FL	$1,024.79–$1,122.68	3
GA	$968.50–$1,056.06	2
GU	$1,115.90	1
HI	$1,115.90	1
IA	$954.50	1
ID	$960.85	1
IL	$997.12–$1,090.91	4
IN	$966.22	1
KS	$950.89	1
KY	$955.96	1
LA	$954.80–$1,000.49	2
MA	$1,070.50–$1,179.72	2
MD	$1,044.71–$1,180.94	3
ME	$966.48–$1,016.24	2
MI	$980.74–$1,037.96	2
MN	$1,030.05	1
MO	$939.39–$1,003.09	3
MS	$929.82	1
MT	$1,036.35	1
NC	$976.17	1
ND	$1,014.01	1
NE	$959.36	1
NH	$1,060.25	1
NJ	$1,116.23–$1,169.43	2
NM	$986.24	1
NV	$1,030.82	1
NY	$990.42–$1,219.70	5
OH	$976.17	1
OK	$953.53	1
OR	$1,022.44–$1,108.87	2
PA	$977.28–$1,077.70	2
PR	$1,043.52	1
RI	$1,061.07	1
SC	$977.87	1
SD	$1,011.37	1
TN	$955.61	1
TX	$971.10–$1,073.10	8
UT	$990.82	1
VA	$1,013.50–$1,180.94	2
VI	$1,043.52	1
VT	$1,010.82	1
WA	$1,068.24–$1,202.66	2
WI	$981.08	1
WV	$961.51	1
WY	$1,026.62	1

See 28299 in every payment locality

How the 28299 rate is calculated

Each of 28299’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 · 28299

RVUs × geographic indexes × conversion factor

Office or facility?

Your ZIP

Work9.06

9.06 RVUs× 1.000 GPCI

Practice expense20.84

20.84 RVUs× 1.000 GPCI

Malpractice1.13

1.13 RVUs× 1.000 GPCI

Adjusted RVUs

31.0300

Conversion factor

$33.4009

Medicare rate

$1,036.43

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

The exact South Carolina inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

3,178

Code: 28299
Physician work: 9.06
Practice expense: 20.84
Malpractice: 1.13

GPCI2026.csv

Locality: South Carolina
Physician work: 1.000
Practice expense: 0.924
Malpractice: 0.850

Office calculation for 28299 in South Carolina
Component	RVU	Locality factor	Adjusted
Physician work	9.06	× 1.000	9.0600
Practice expense	20.84	× 0.924	19.2562
Malpractice	1.13	× 0.850	0.9605
Total RVUs			29.2767
Conversion factor			× 33.4009

Office rate, South Carolina$977.87

Office: (9.06 × 1 + 20.84 × 0.924 + 1.13 × 0.85) × $33.4009 = $977.87

Facility: (9.06 × 1 + 6.68 × 0.924 + 1.13 × 0.85) × $33.4009 = $540.85

Open 28299 in the RVU calculator

Payment rules and modifiers for 28299

28299 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 28299

Bunion correction, double osteotomy

Rule	CMS value	What it means
Global period	090	Major surgery: the day before, the day of, and 90 days after are 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)	2	Paid.
Co-surgeons (62)	1	Permitted with supporting documentation.
Team surgery (66)	0	Not permitted.
Professional/technical	0	Physician service: no professional/technical split.
Split (54/55/56)	0.10/0.69/0.21	Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 28299

Bunion correction, double osteotomy

Date of surgery

Date of a later visit

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 50 · payment effect

With and without the modifier

28299 without 50 · national office

$1,036.43

Bunion correction, double osteotomy

28299-50 · Bilateral: 150%

$1,554.65

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 28299

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

Codes related to 28299
Code	How it relates	Office range, South Carolina
Same family
28295	Bunion correction, proximal metatarsal osteotomyHallux valgus correction using a proximal first-metatarsal osteotomy.	$1,002.41
28296	Bunion correction, distal first metatarsal osteotomyHallux valgus correction using a distal first-metatarsal osteotomy.	$834.69
28298	Bunion correction, proximal phalanx osteotomyHallux valgus correction using a proximal phalanx osteotomy.	$811.76
Used instead
28297	Bunion correction, first tarsometatarsal fusionHallux valgus correction using first tarsometatarsal joint arthrodesis.	$972.64
28292	Bunion correction, proximal phalanx base resectionHallux valgus correction without the double-osteotomy approach represented by 28299.	$666.13

How 28299 has changed in South Carolina

28299 · Office / nonfacility

$977.87

Effective 2026-10-01

Compare with release effective

The base rate is $65.47 higher than on 2025-10-01, moving from $912.40 to $977.87 (7.2%).

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

January 1, 2026
RVU26A
$912.40changed to$977.87
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 9.29 changed to 9.06
- Practice expense RVU 19.78 changed to 20.84
- Malpractice RVU 1.05 changed to 1.13
- Practice expense GPCI 0.913 changed to 0.924
- Malpractice GPCI 0.817 changed to 0.850
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$946.44changed to$912.40
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 20.00 changed to 19.78
- Malpractice RVU 1.08 changed to 1.05
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$930.99changed to$946.44
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$948.33changed to$930.99
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 19.74 changed to 20.00
- Malpractice RVU 1.02 changed to 1.08
- Practice expense GPCI 0.908 changed to 0.913
- Malpractice GPCI 0.756 changed to 0.817
January 1, 2023
RVU23A
$957.57changed to$948.33
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 19.57 changed to 19.74
- Practice expense GPCI 0.903 changed to 0.908
- Malpractice GPCI 0.695 changed to 0.756
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$975.18changed to$957.57
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 19.90 changed to 19.57
- Malpractice RVU 0.99 changed to 1.02
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$973.91changed to$975.18
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 18.85 changed to 19.90
- Malpractice RVU 0.96 changed to 0.99
- Practice expense GPCI 0.907 changed to 0.903
- Malpractice GPCI 0.624 changed to 0.695
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$976.97changed to$973.91
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 18.98 changed to 18.85
- Malpractice RVU 0.92 changed to 0.96
- Practice expense GPCI 0.912 changed to 0.907
- Malpractice GPCI 0.553 changed to 0.624
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$973.86changed to$976.97
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 18.93 changed to 18.98
- Malpractice RVU 0.90 changed to 0.92
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$967.35changed to$973.86
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 18.75 changed to 18.93
- Malpractice RVU 0.89 changed to 0.90
- Malpractice GPCI 0.634 changed to 0.553
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
$872.72changed to$967.35
- Conversion factor 35.8043 changed to 35.8887
- Work RVU 11.57 changed to 9.29
- Practice expense RVU 13.17 changed to 18.75
- Malpractice RVU 1.11 changed to 0.89
- Malpractice GPCI 0.715 changed to 0.634
Held through RVU17B, RVU17C, RVU17D.
January 1, 2016
RVU16A
$878.46changed to$872.72
- Conversion factor 35.9335 changed to 35.8043
- Practice expense RVU 13.21 changed to 13.17
- Malpractice RVU 1.16 changed to 1.11
Held through RVU16B, RVU16C, RVU16D.
July 1, 2015
RVU15C
$874.09changed to$878.46
- Conversion factor 35.7547 changed to 35.9335
Held through RVU15D.
January 1, 2015
RVU15A
$860.57changed to$874.09
- Conversion factor 35.8228 changed to 35.7547
- Practice expense RVU 12.93 changed to 13.21
- Malpractice RVU 1.09 changed to 1.16
- Practice expense GPCI 0.911 changed to 0.912
- Malpractice GPCI 0.618 changed to 0.715
Held through RVU15B.
January 1, 2014
RVU14A
$851.74changed to$860.57
- Conversion factor 34.0230 changed to 35.8228
- Practice expense RVU 14.16 changed to 12.93
- Malpractice RVU 1.14 changed to 1.09
- Practice expense GPCI 0.909 changed to 0.911
- Malpractice GPCI 0.520 changed to 0.618
Held through RVU14B, RVU14C, RVU14D.
January 1, 2013
RVU13AR
Earliest loaded release: $851.74
Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective from	Office	Facility	CMS release
2026-10-01	$977.87	$540.85	RVU26D
2026-07-01	$977.87	$540.85	RVU26C
2026-04-01	$977.87	$540.85	RVU26B
2026-01-01	$977.87	$540.85	RVU26A
2025-10-01	$912.40	$559.49	RVU25D
2025-07-01	$912.40	$559.49	RVU25C
2025-04-01	$912.40	$559.49	RVU25B
2025-01-01	$912.40	$559.49	RVU25A
2024-10-01	$946.44	$570.80	RVU24D
2024-07-01	$946.44	$570.80	RVU24C
2024-04-01	$946.44	$570.80	RVU24B
2024-03-09	$946.44	$570.80	RVU24AR
2024-01-01	$930.99	$561.49	RVU24A
2023-10-01	$948.33	$566.18	RVU23D
2023-07-01	$948.33	$566.18	RVU23C
2023-04-01	$948.33	$566.18	RVU23B
2023-01-01	$948.33	$566.18	RVU23A
2022-10-01	$957.57	$564.46	RVU22D
2022-07-01	$957.57	$564.46	RVU22C
2022-04-01	$957.57	$564.46	RVU22B
2022-01-01	$957.57	$564.46	RVU22A
2021-10-01	$975.18	$563.05	RVU21D
2021-07-01	$975.18	$563.05	RVU21C
2021-04-01	$975.18	$563.05	RVU21B
2021-01-01	$975.18	$563.05	RVU21A
2020-10-01	$973.91	$571.29	RVU20D
2020-07-01	$973.91	$571.29	RVU20C
2020-04-01	$973.91	$571.29	RVU20B
2020-01-01	$973.91	$571.29	RVU20A
2019-10-01	$976.97	$569.74	RVU19D
2019-07-01	$976.97	$569.74	RVU19C
2019-04-01	$976.97	$569.74	RVU19B
2019-01-01	$976.97	$569.74	RVU19A
2018-10-01	$973.86	$567.07	RVU18D
2018-07-01	$973.86	$567.07	RVU18C
2018-04-01	$973.86	$567.07	RVU18B
2018-01-01	$973.86	$567.07	RVU18AR1
2017-10-01	$967.35	$566.40	RVU17D
2017-07-01	$967.35	$566.40	RVU17C
2017-04-01	$967.35	$566.40	RVU17B
2017-01-01	$967.35	$566.40	RVU17A
2016-10-01	$872.72	$664.72	RVU16D
2016-07-01	$872.72	$664.72	RVU16C
2016-04-01	$872.72	$664.72	RVU16B
2016-01-01	$872.72	$664.72	RVU16A
2015-10-01	$878.46	$668.73	RVU15D
2015-07-01	$878.46	$668.73	RVU15C
2015-04-01	$874.09	$665.40	RVU15B
2015-01-01	$874.09	$665.40	RVU15A
2014-10-01	$860.57	$657.25	RVU14D
2014-07-01	$860.57	$657.25	RVU14C
2014-04-01	$860.57	$657.25	RVU14B
2014-01-01	$860.57	$657.25	RVU14A
2013-10-01	$851.74	$637.73	RVU13D
2013-07-01	$851.74	$637.73	RVU13C
2013-04-01	$851.74	$637.73	RVU13B
2013-01-01	$851.74	$637.73	RVU13AR

Price 28299 for an earlier date of service

Where the South Carolina rate applies

South Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 475 cities and communities in South Carolina. Some span more than one payment area; confirm with the service ZIP.

Abbeville
Abney Crossroads
Adams Run
Aiken
Alcolu
Allendale
Anderson
Andrews

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28299 billing questions

When should 28299 be selected instead of a single-osteotomy code?

Use 28299 when the hallux valgus correction includes two osteotomies. A correction using only one osteotomy is represented by the applicable single-osteotomy code.

Can the two osteotomies be billed separately?

28299 represents the double-osteotomy correction. Do not separately report a single-osteotomy code for a component of that same correction.

What documentation supports 28299?

The operative report should identify the hallux valgus correction, the bones and sites treated, and both osteotomies performed.

How is bilateral 28299 reported?

For bilateral procedures, report modifier 50; CMS pays the bilateral procedure at 150%.

What postoperative care is included?

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

May an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted for this code.

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 28299PPRRVU2026_Oct_nonQPP.csv, line 3,178 (RVU26D)

3,17528296,,[CPT descriptor omitted],A,,8.04,17.59,,5.64,,0.82,26.45,14.50,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,17628297,,[CPT descriptor omitted],A,,9.06,20.68,,6.64,,1.12,30.86,16.82,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,17728298,,[CPT descriptor omitted],A,,7.56,17.21,,5.92,,0.99,25.76,14.47,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,17828299,,[CPT descriptor omitted],A,,9.06,20.84,,6.68,,1.13,31.03,16.87,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,17928300,,[CPT descriptor omitted],A,,9.49,7.20,NA,7.20,,1.61,18.30,18.30,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,18028302,,[CPT descriptor omitted],A,,9.50,8.66,NA,8.66,,2.02,20.18,20.18,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

3,18128304,,[CPT descriptor omitted],A,,9.17,15.47,,6.78,,1.46,26.10,17.41,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00

Geographic factors for South CarolinaGPCI2026.csv, line 93 (RVU26D)

9012502,PA,99,REST OF PENNSYLVANIA,1.000,0.918,0.945

9109202,PR,20,PUERTO RICO,1.000,1.011,0.985

9214412,RI,01,RHODE ISLAND,1.019,1.033,0.892

9311202,SC,01,SOUTH CAROLINA,1.000,0.924,0.850

9403402,SD,02,SOUTH DAKOTA**,1.000,1.000,0.336

9510312,TN,35,TENNESSEE,1.000,0.909,0.537

9604412,TX,31,AUSTIN,1.002,1.058,0.886

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28299 billing questions

When should 28299 be selected instead of a single-osteotomy code?

Can the two osteotomies be billed separately?

What documentation supports 28299?

How is bilateral 28299 reported?

What postoperative care is included?

May an assistant or co-surgeon be reported?

Where these rates come from

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Put 28299 and the rest of your codes on one sheet