CPT code 43635: Partial gastrectomy, add-on service2026 Medicare rate & RVUs in New Mexico

This add-on reports partial removal of the stomach when performed with a qualifying primary procedure during the same operative service.

CMS RVU26DEffective Oct 1, 2026One payment locality50 Medicare services in 2024

In New Mexico, Medicare pays $103.10 for 43635 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$103.10Hospital or facility

Check a contract rate as a % of Medicare · 43635 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 43635 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 43635 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 43635 covers

CPT 43635 represents partial removal of stomach tissue as an additional operative service accompanying a primary procedure. A surgeon may perform partial stomach resection during an operation when the documented surgical plan requires removal of only part of the stomach. The code identifies the resection service; the primary procedure and the operative details establish the broader surgical context.

Report 43635 only with a primary procedure that permits this add-on, and document the portion of stomach removed and how the work relates to the primary operation. It is not a stand-alone code. CMS treats payment for the add-on as part of the primary procedure’s global period, so the add-on is paid within that period. The primary code should reflect the operation performed; codes 43631–43634 distinguish partial gastrectomy procedures by location and reconstruction.

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 New Mexico compares for 43635

Across 109 of 109 payment localities, the facility rate for 43635 runs from $87.95 in Wisconsin to $128.60 in Miami, FL. New Mexico pays $103.10. The RVUs are the same everywhere; the geographic indexes change the dollars.

43635 in New Mexico vs other payment areas
  1. New Mexico · this page$103.10
  2. Los Angeles, CA · California$100.61−$2.49
  3. Washington, DC area · District of Columbia$109.35+$6.25
  4. Miami, FL · Florida$128.60+$25.50
  5. Chicago, IL · Illinois$124.35+$21.25
  6. Manhattan, NY · New York$118.14+$15.04
  7. Alaska · Alaska$127.53+$24.43

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

Every other payment area

43635 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$91.18
ArkansasArkansas—$90.02
ArizonaArizona—$97.82
Bakersfield, CACalifornia—$96.76
Chico, CACalifornia—$95.34
El Centro, CACalifornia—$95.43
Fresno, CACalifornia—$95.34
Hanford, CACalifornia—$95.34

43635 rates by state

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

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

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43635 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

See 43635 in every payment locality

How the 43635 rate is calculated

Each of 43635’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 · 43635

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.01

2.01 RVUs× 1.000 GPCI

Practice expense0.48

0.48 RVUs× 1.000 GPCI

Malpractice0.53

0.53 RVUs× 1.000 GPCI

Adjusted RVUs

3.0200

Conversion factor

$33.4009

Medicare rate

$100.87

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

The exact New Mexico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,272

Code
43635
Physician work
2.01
Practice expense
0.48
Malpractice
0.53

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Facility calculation for 43635 in New Mexico
ComponentRVULocality factorAdjusted
Physician work2.01× 1.0002.0100
Practice expense0.48× 0.9170.4402
Malpractice0.53× 1.2010.6365
Total RVUs3.0867
Conversion factor× 33.4009

Facility rate, New Mexico$103.10

Facility: (2.01 × 1 + 0.48 × 0.917 + 0.53 × 1.201) × $33.4009 = $103.10

Open 43635 in the RVU calculator

Payment rules and modifiers for 43635

The CMS indicators that decide how 43635 is paid alongside other services.

CMS payment indicators · 43635

Partial gastrectomy, add-on service

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 80 · payment effect

With and without the modifier

43635 without 80 · national facility

$100.87

Partial gastrectomy, add-on service

43635-80 · Assistant: 16%

$16.14

A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.

When to use modifier 80

How 43635 has changed in New Mexico

43635 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

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
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$103.10RVU26D
2026-07-01Not available in this setting$103.10RVU26C
2026-04-01Not available in this setting$103.10RVU26B
2026-01-01Not available in this setting$103.10RVU26A
2025-10-01Not available in this setting$109.26RVU25D
2025-07-01Not available in this setting$109.26RVU25C
2025-04-01Not available in this setting$109.26RVU25B
2025-01-01Not available in this setting$109.26RVU25A
2024-10-01Not available in this setting$111.83RVU24D
2024-07-01Not available in this setting$111.83RVU24C
2024-04-01Not available in this setting$111.83RVU24B
2024-03-09Not available in this setting$111.83RVU24AR
2024-01-01Not available in this setting$110.00RVU24A
2023-10-01Not available in this setting$113.55RVU23D
2023-07-01Not available in this setting$113.55RVU23C
2023-04-01Not available in this setting$113.55RVU23B
2023-01-01Not available in this setting$113.55RVU23A
2022-10-01Not available in this setting$115.34RVU22D
2022-07-01Not available in this setting$115.34RVU22C
2022-04-01Not available in this setting$115.34RVU22B
2022-01-01Not available in this setting$115.34RVU22A
2021-10-01Not available in this setting$115.17RVU21D
2021-07-01Not available in this setting$115.17RVU21C
2021-04-01Not available in this setting$115.17RVU21B
2021-01-01Not available in this setting$115.17RVU21A
2020-10-01Not available in this setting$119.94RVU20D
2020-07-01Not available in this setting$119.94RVU20C
2020-04-01Not available in this setting$119.94RVU20B
2020-01-01Not available in this setting$119.94RVU20A
2019-10-01Not available in this setting$119.71RVU19D
2019-07-01Not available in this setting$119.71RVU19C
2019-04-01Not available in this setting$119.71RVU19B
2019-01-01Not available in this setting$119.71RVU19A
2018-10-01Not available in this setting$120.48RVU18D
2018-07-01Not available in this setting$120.48RVU18C
2018-04-01Not available in this setting$120.48RVU18B
2018-01-01Not available in this setting$120.48RVU18AR1
2017-10-01Not available in this setting$119.21RVU17D
2017-07-01Not available in this setting$119.21RVU17C
2017-04-01Not available in this setting$119.21RVU17B
2017-01-01Not available in this setting$119.21RVU17A
2016-10-01Not available in this setting$117.82RVU16D
2016-07-01Not available in this setting$117.82RVU16C
2016-04-01Not available in this setting$117.82RVU16B
2016-01-01Not available in this setting$117.82RVU16A
2015-10-01Not available in this setting$118.15RVU15D
2015-07-01Not available in this setting$118.15RVU15C
2015-04-01Not available in this setting$117.57RVU15B
2015-01-01Not available in this setting$117.57RVU15A
2014-10-01Not available in this setting$113.26RVU14D
2014-07-01Not available in this setting$113.26RVU14C
2014-04-01Not available in this setting$113.26RVU14B
2014-01-01Not available in this setting$113.26RVU14A
2013-10-01Not available in this setting$109.58RVU13D
2013-07-01Not available in this setting$109.58RVU13C
2013-04-01Not available in this setting$109.58RVU13B
2013-01-01Not available in this setting$109.58RVU13AR

Price 43635 for an earlier date of service

Where the New Mexico rate applies

New Mexico is a Medicare payment area, not a city. Our Census mapping connects it to 528 cities and communities in New Mexico. Some span more than one payment area; confirm with the service ZIP.

  • Abeytas
  • Abiquiu
  • Acomita Lake
  • Adelino
  • Agua Fria
  • Alamillo
  • Alamo
  • Alamogordo

Browse all communities in New Mexico

43635 billing questions

Can 43635 be reported by itself?

No. It is an add-on code and must be reported with a qualifying primary procedure.

How is 43635 different from 43631–43634?

Codes 43631–43634 describe primary partial gastrectomy procedures, with distinctions based on location and reconstruction. Code 43635 is an add-on, not a substitute for those primary procedure codes.

What documentation supports reporting 43635?

The operative report should identify the partial stomach resection performed and explain its relationship to the primary operation.

How does the global period affect payment?

CMS pays 43635 within the global period of the primary procedure. Report it only with that primary procedure.

Should 43635 replace a code for excision of a stomach lesion?

Not based on the short descriptor alone. Distinguish partial stomach resection from lesion excision using the documented extent and nature of the operation.

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 43635PPRRVU2026_Oct_nonQPP.csv, line 5,272 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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