CPT code 42830: Adenoid removal, primary, younger than 122026 Medicare rate & RVUs in Puerto Rico

Reports a first operation to remove adenoid tissue in a patient younger than 12, such as for nasopharyngeal obstruction or sleep-disordered breathing.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Puerto Rico, Medicare pays $196.27 for 42830 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$196.27Hospital or facility

Check a contract rate as a % of Medicare · 42830 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 42830 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Puerto Rico
  2. What 42830 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 42830 covers

An otolaryngologist removes adenoid tissue from the nasopharynx during a first adenoid operation for a patient younger than 12. Common clinical reasons include enlarged adenoids contributing to nasal obstruction, sleep-disordered breathing, or recurrent adenoid-related symptoms. The procedure is generally performed in an operating room under anesthesia; the operative report should establish that adenoid tissue was removed and whether this was the patient’s first adenoid operation.

Select this code for a primary adenoid procedure in a patient younger than 12. When tonsils are also removed in the same operation, use the age-appropriate combined tonsil-and-adenoid code rather than reporting this code as the adenoid portion. Medicare assigns 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 other procedures are subject to the standard 50% reduction. 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 Puerto Rico compares for 42830

Across 109 of 109 payment localities, the facility rate for 42830 runs from $175.63 in Arkansas to $241.65 in San Benito County, CA. Puerto Rico pays $196.27. The RVUs are the same everywhere; the geographic indexes change the dollars.

42830 in Puerto Rico vs other payment areas
  1. Puerto Rico · this page$196.27
  2. Los Angeles, CA · California$212.33+$16.06
  3. Washington, DC area · District of Columbia$218.67+$22.40
  4. Miami, FL · Florida$218.76+$22.49
  5. Chicago, IL · Illinois$212.92+$16.65
  6. Manhattan, NY · New York$223.99+$27.72
  7. Alaska · Alaska$239.06+$42.79

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

Every other payment area

42830 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$177.82
ArkansasArkansas—$175.63
ArizonaArizona—$190.58
Bakersfield, CACalifornia—$201.34
Chico, CACalifornia—$200.24
El Centro, CACalifornia—$200.30
Fresno, CACalifornia—$200.24
Hanford, CACalifornia—$200.24

42830 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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42830 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 42830 in every payment locality

How the 42830 rate is calculated

Each of 42830’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 · 42830

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.58

2.58 RVUs× 1.000 GPCI

Practice expense2.89

2.89 RVUs× 1.000 GPCI

Malpractice0.38

0.38 RVUs× 1.000 GPCI

Adjusted RVUs

5.8500

Conversion factor

$33.4009

Medicare rate

$195.40

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

The exact Puerto Rico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,083

Code
42830
Physician work
2.58
Practice expense
2.89
Malpractice
0.38

GPCI2026.csv

91

Locality
Puerto Rico
Physician work
1.000
Practice expense
1.011
Malpractice
0.985
Facility calculation for 42830 in Puerto Rico
ComponentRVULocality factorAdjusted
Physician work2.58× 1.0002.5800
Practice expense2.89× 1.0112.9218
Malpractice0.38× 0.9850.3743
Total RVUs5.8761
Conversion factor× 33.4009

Facility rate, Puerto Rico$196.27

Facility: (2.58 × 1 + 2.89 × 1.011 + 0.38 × 0.985) × $33.4009 = $196.27

Open 42830 in the RVU calculator

Payment rules and modifiers for 42830

42830 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 42830

Adenoid removal, primary, younger than 12

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)0.09/0.81/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 42830

Adenoid removal, primary, younger than 12

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

42830 without 51 · national facility

$195.40

Adenoid removal, primary, younger than 12

42830-51 · Second procedure: 50%

$97.70

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

How 42830 has changed in Puerto Rico

42830 · 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$196.27RVU26D
2026-07-01Not available in this setting$196.27RVU26C
2026-04-01Not available in this setting$196.27RVU26B
2026-01-01Not available in this setting$196.27RVU26A
2025-10-01Not available in this setting$211.79RVU25D
2025-07-01Not available in this setting$211.79RVU25C
2025-04-01Not available in this setting$211.79RVU25B
2025-01-01Not available in this setting$211.79RVU25A
2024-10-01Not available in this setting$216.61RVU24D
2024-07-01Not available in this setting$216.61RVU24C
2024-04-01Not available in this setting$216.61RVU24B
2024-03-09Not available in this setting$216.61RVU24AR
2024-01-01Not available in this setting$213.07RVU24A
2023-10-01Not available in this setting$217.59RVU23D
2023-07-01Not available in this setting$216.88RVU23C
2023-04-01Not available in this setting$216.88RVU23B
2023-01-01Not available in this setting$216.88RVU23A
2022-10-01Not available in this setting$218.03RVU22D
2022-07-01Not available in this setting$218.03RVU22C
2022-04-01Not available in this setting$218.03RVU22B
2022-01-01Not available in this setting$218.03RVU22A
2021-10-01Not available in this setting$213.88RVU21D
2021-07-01Not available in this setting$213.88RVU21C
2021-04-01Not available in this setting$213.88RVU21B
2021-01-01Not available in this setting$213.88RVU21A
2020-10-01Not available in this setting$215.42RVU20D
2020-07-01Not available in this setting$215.42RVU20C
2020-04-01Not available in this setting$215.42RVU20B
2020-01-01Not available in this setting$215.42RVU20A
2019-10-01Not available in this setting$215.03RVU19D
2019-07-01Not available in this setting$215.03RVU19C
2019-04-01Not available in this setting$215.03RVU19B
2019-01-01Not available in this setting$215.03RVU19A
2018-10-01Not available in this setting$212.63RVU18D
2018-07-01Not available in this setting$212.63RVU18C
2018-04-01Not available in this setting$212.63RVU18B
2018-01-01Not available in this setting$212.63RVU18AR1
2017-10-01Not available in this setting$194.18RVU17D
2017-07-01Not available in this setting$194.18RVU17C
2017-04-01Not available in this setting$194.18RVU17B
2017-01-01Not available in this setting$194.18RVU17A
2016-10-01Not available in this setting$174.59RVU16D
2016-07-01Not available in this setting$174.59RVU16C
2016-04-01Not available in this setting$174.59RVU16B
2016-01-01Not available in this setting$174.59RVU16A
2015-10-01Not available in this setting$174.97RVU15D
2015-07-01Not available in this setting$174.97RVU15C
2015-04-01Not available in this setting$174.10RVU15B
2015-01-01Not available in this setting$174.10RVU15A
2014-10-01Not available in this setting$173.74RVU14D
2014-07-01Not available in this setting$173.74RVU14C
2014-04-01Not available in this setting$173.74RVU14B
2014-01-01Not available in this setting$173.74RVU14A
2013-10-01Not available in this setting$170.55RVU13D
2013-07-01Not available in this setting$170.55RVU13C
2013-04-01Not available in this setting$170.55RVU13B
2013-01-01Not available in this setting$170.55RVU13AR

Price 42830 for an earlier date of service

Where the Puerto Rico rate applies

Puerto Rico is a Medicare payment area, not a city. Our Census mapping connects it to 292 cities and communities in Puerto Rico. Some span more than one payment area; confirm with the service ZIP.

  • Aceitunas
  • Adjuntas
  • Aguada
  • Aguadilla
  • Aguas Buenas
  • Aguas Claras
  • Aguilita
  • Aibonito

Browse all communities in Puerto Rico

42830 billing questions

How is this code distinguished from 42831?

This code is for a first adenoid operation in a patient younger than 12. Code 42831 describes a secondary adenoid operation in that age group.

When should the combined tonsil-and-adenoid code be used?

When both the tonsils and adenoids are removed during the same operation, select the combined code for the patient’s age rather than reporting this code for the adenoid work.

Can modifier 50 be appended?

No. The CMS bilateral adjustment does not apply to this code; modifier 50 is inappropriate for adenoid removal.

What postoperative care is included?

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

What documentation supports reporting this code?

Document the patient’s age, the clinical reason for surgery, that the procedure was a first adenoid operation, and the operative findings and removal of adenoid tissue.

How are other procedures in the same session paid?

The highest-valued procedure is paid in full; other procedures in the session are subject to the standard multiple-procedure reduction. Assistant-at-surgery payment requires documented medical necessity.

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 42830PPRRVU2026_Oct_nonQPP.csv, line 5,083 (RVU26D)
Geographic factors for Puerto RicoGPCI2026.csv, line 91 (RVU26D)

Open CMS sourceHow we calculate rates

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