CPT code 23470: Shoulder arthroplasty, hemiarthroplasty2026 Medicare rate & RVUs in New Mexico

Shoulder hemiarthroplasty replaces the humeral joint surface while retaining the native glenoid, typically for selected cases of shoulder arthritis or humeral head damage.

CMS RVU26DEffective Oct 1, 2026One payment locality1.4K Medicare services in 2024

In New Mexico, Medicare pays $1,079.69 for 23470 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$1,079.69Hospital or facility

Check a contract rate as a % of Medicare · 23470 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 23470 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 23470 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 23470 covers

An orthopedic surgeon performs this operation to replace the humeral side of the glenohumeral joint while leaving the patient’s natural glenoid in place. It may be selected for severe shoulder arthritis or substantial humeral head damage when the surgeon plans a hemiarthroplasty rather than replacement of both joint surfaces. The procedure is generally performed in an operating room, with the operative report documenting the condition treated and the components replaced or retained.

Report the code for the hemiarthroplasty, not for a total shoulder replacement or revision of an existing prosthesis. CMS assigns a 90-day global period, which includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. 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 payment 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 New Mexico compares for 23470

Across 109 of 109 payment localities, the facility rate for 23470 runs from $975.71 in Arkansas to $1,350.85 in Alaska. New Mexico pays $1,079.69. The RVUs are the same everywhere; the geographic indexes change the dollars.

23470 in New Mexico vs other payment areas
  1. New Mexico · this page$1,079.69
  2. Los Angeles, CA · California$1,142.52+$62.83
  3. Washington, DC area · District of Columbia$1,201.55+$121.86
  4. Miami, FL · Florida$1,285.52+$205.83
  5. Chicago, IL · Illinois$1,247.86+$168.17
  6. Manhattan, NY · New York$1,257.43+$177.74
  7. Alaska · Alaska$1,350.85+$271.16

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

Every other payment area

23470 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$987.96
ArkansasArkansas—$975.71
ArizonaArizona—$1,058.76
Bakersfield, CACalifornia—$1,089.54
Chico, CACalifornia—$1,079.70
El Centro, CACalifornia—$1,080.29
Fresno, CACalifornia—$1,079.70
Hanford, CACalifornia—$1,079.70

23470 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.

View every state and territory as a table
23470 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 23470 in every payment locality

How the 23470 rate is calculated

Each of 23470’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 · 23470

RVUs × geographic indexes × conversion factor

Office or facility?

Work17.44

17.44 RVUs× 1.000 GPCI

Practice expense11.57

11.57 RVUs× 1.000 GPCI

Malpractice3.56

3.56 RVUs× 1.000 GPCI

Adjusted RVUs

32.5700

Conversion factor

$33.4009

Medicare rate

$1,087.87

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

2,210

Code
23470
Physician work
17.44
Practice expense
11.57
Malpractice
3.56

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Facility calculation for 23470 in New Mexico
ComponentRVULocality factorAdjusted
Physician work17.44× 1.00017.4400
Practice expense11.57× 0.91710.6097
Malpractice3.56× 1.2014.2756
Total RVUs32.3253
Conversion factor× 33.4009

Facility rate, New Mexico$1079.69

Facility: (17.44 × 1 + 11.57 × 0.917 + 3.56 × 1.201) × $33.4009 = $1079.69

Open 23470 in the RVU calculator

Payment rules and modifiers for 23470

23470 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 23470

Shoulder arthroplasty, hemiarthroplasty

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)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
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.
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 · 23470

Shoulder arthroplasty, hemiarthroplasty

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

23470 without 50 · national facility

$1,087.87

Shoulder arthroplasty, hemiarthroplasty

23470-50 · Bilateral: 150%

$1,631.80

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

How 23470 has changed in New Mexico

23470 · 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$1,079.69RVU26D
2026-07-01Not available in this setting$1,079.69RVU26C
2026-04-01Not available in this setting$1,079.69RVU26B
2026-01-01Not available in this setting$1,079.69RVU26A
2025-10-01Not available in this setting$1,150.75RVU25D
2025-07-01Not available in this setting$1,150.75RVU25C
2025-04-01Not available in this setting$1,150.75RVU25B
2025-01-01Not available in this setting$1,150.75RVU25A
2024-10-01Not available in this setting$1,177.11RVU24D
2024-07-01Not available in this setting$1,177.11RVU24C
2024-04-01Not available in this setting$1,177.11RVU24B
2024-03-09Not available in this setting$1,177.11RVU24AR
2024-01-01Not available in this setting$1,157.90RVU24A
2023-10-01Not available in this setting$1,186.34RVU23D
2023-07-01Not available in this setting$1,186.34RVU23C
2023-04-01Not available in this setting$1,186.34RVU23B
2023-01-01Not available in this setting$1,186.34RVU23A
2022-10-01Not available in this setting$1,199.86RVU22D
2022-07-01Not available in this setting$1,199.86RVU22C
2022-04-01Not available in this setting$1,199.86RVU22B
2022-01-01Not available in this setting$1,199.86RVU22A
2021-10-01Not available in this setting$1,203.68RVU21D
2021-07-01Not available in this setting$1,203.68RVU21C
2021-04-01Not available in this setting$1,203.68RVU21B
2021-01-01Not available in this setting$1,203.68RVU21A
2020-10-01Not available in this setting$1,234.16RVU20D
2020-07-01Not available in this setting$1,234.16RVU20C
2020-04-01Not available in this setting$1,234.16RVU20B
2020-01-01Not available in this setting$1,234.16RVU20A
2019-10-01Not available in this setting$1,239.70RVU19D
2019-07-01Not available in this setting$1,239.70RVU19C
2019-04-01Not available in this setting$1,239.70RVU19B
2019-01-01Not available in this setting$1,239.70RVU19A
2018-10-01Not available in this setting$1,237.54RVU18D
2018-07-01Not available in this setting$1,237.54RVU18C
2018-04-01Not available in this setting$1,237.54RVU18B
2018-01-01Not available in this setting$1,237.54RVU18AR1
2017-10-01Not available in this setting$1,229.04RVU17D
2017-07-01Not available in this setting$1,229.04RVU17C
2017-04-01Not available in this setting$1,229.04RVU17B
2017-01-01Not available in this setting$1,229.04RVU17A
2016-10-01Not available in this setting$1,222.75RVU16D
2016-07-01Not available in this setting$1,222.75RVU16C
2016-04-01Not available in this setting$1,222.75RVU16B
2016-01-01Not available in this setting$1,222.75RVU16A
2015-10-01Not available in this setting$1,228.75RVU15D
2015-07-01Not available in this setting$1,228.75RVU15C
2015-04-01Not available in this setting$1,222.63RVU15B
2015-01-01Not available in this setting$1,222.63RVU15A
2014-10-01Not available in this setting$1,206.47RVU14D
2014-07-01Not available in this setting$1,206.47RVU14C
2014-04-01Not available in this setting$1,206.47RVU14B
2014-01-01Not available in this setting$1,206.47RVU14A
2013-10-01Not available in this setting$1,174.64RVU13D
2013-07-01Not available in this setting$1,174.64RVU13C
2013-04-01Not available in this setting$1,174.64RVU13B
2013-01-01Not available in this setting$1,174.64RVU13AR

Price 23470 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

23470 billing questions

How does this differ from 23472?

This code represents replacement of the humeral side while retaining the native glenoid. Report 23472 when the operation replaces both sides of the shoulder joint.

What documentation supports hemiarthroplasty rather than total shoulder replacement?

The operative report should establish the shoulder condition treated and identify that the humeral joint surface was replaced while the native glenoid was retained.

Does the 90-day global period include postoperative visits?

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

How is bilateral hemiarthroplasty handled?

When the procedure is performed bilaterally, CMS pays the service reported with modifier 50 at 150%.

Can an assistant or co-surgeon be reported?

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

What happens when another procedure is performed during 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 23470PPRRVU2026_Oct_nonQPP.csv, line 2,210 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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