CPT code 38792: Sentinel node injection, radioactive tracer2026 Medicare rate & RVUs in Idaho

Reports radioactive tracer injection to localize sentinel lymph nodes, commonly before breast cancer or melanoma surgery and subsequent node removal.

CMS RVU26DEffective Oct 1, 2026One payment locality24.6K Medicare services in 2024

In Idaho, Medicare pays $76.23 for 38792 in the office and $25.84 when it’s performed in a hospital or facility.

$76.23Office (non-facility)
$25.84Hospital or facility
−7.2%vs the national office rate ($82.17)

Check a contract rate as a % of Medicare · 38792 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 38792 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Idaho
  2. What 38792 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 38792 covers

This service is the injection of radioactive tracer to help locate sentinel lymph nodes that drain a tumor site. It is commonly used in breast cancer and melanoma care before sentinel node biopsy or excision. A nuclear medicine or radiology clinician, or the surgeon, may perform the injection in a facility or office setting. The injection is distinct from imaging that follows it and from surgical removal of the node.

Report 38792 when the documented service is the radioactive tracer injection for sentinel node localization. The record should identify the injection site, laterality, tracer, and clinical purpose; report a separately performed node biopsy or imaging service with its applicable code. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 applies to bilateral performance and is paid at 150%. Assistant-at-surgery payment is restricted; 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 Idaho compares for 38792

Across 109 of 109 payment localities, the office rate for 38792 runs from $72.74 in Arkansas to $109.38 in San Benito County, CA. Idaho pays $76.23. The RVUs are the same everywhere; the geographic indexes change the dollars.

38792 in Idaho vs other payment areas
  1. Idaho · this page$76.23
  2. Los Angeles, CA · California$93.00+$16.77
  3. Washington, DC area · District of Columbia$94.03+$17.80
  4. Miami, FL · Florida$88.15+$11.92
  5. Chicago, IL · Illinois$85.64+$9.41
  6. Manhattan, NY · New York$94.41+$18.18
  7. Alaska · Alaska$95.46+$19.23

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

Every other payment area

38792 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$73.80$25.87
ArkansasArkansas$72.74$25.69
ArizonaArizona$80.01$26.93
Bakersfield, CACalifornia$87.30$27.26
Chico, CACalifornia$87.08$27.05
El Centro, CACalifornia$87.09$27.06
Fresno, CACalifornia$87.08$27.05
Hanford, CACalifornia$87.08$27.05

38792 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.

$72.74

$98.23

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

View every state and territory as a table
38792 office rate range by state
State / territoryOffice rate rangeLocalities
AK$95.461
AL$73.801
AR$72.741
AZ$80.011
CA$87.08–$109.3829
CO$85.671
CT$87.601
DC$94.031
DE$81.331
FL$80.76–$88.153
GA$76.27–$83.642
GU$89.241
HI$89.241
IA$75.761
ID$76.231
IL$78.37–$85.714
IN$76.671
KS$75.361
KY$75.441
LA$75.31–$79.022
MA$85.14–$94.182
MD$82.89–$94.033
ME$76.58–$80.772
MI$77.35–$81.712
MN$82.221
MO$73.99–$79.353
MS$73.381
MT$82.161
NC$77.381
ND$80.781
NE$76.191
NH$84.281
NJ$88.64–$93.062
NM$77.761
NV$81.831
NY$78.53–$96.635
OH$77.071
OK$75.351
OR$81.24–$88.432
PA$77.22–$85.412
PR$82.781
RI$84.251
SC$77.351
SD$80.611
TN$75.731
TX$76.71–$85.358
UT$78.401
VA$80.48–$94.032
VI$82.781
VT$80.421
WA$85.00–$96.132
WI$78.081
WV$75.471
WY$81.561

See 38792 in every payment locality

How the 38792 rate is calculated

Each of 38792’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 · 38792

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.63

0.63 RVUs× 1.000 GPCI

Practice expense1.76

1.76 RVUs× 1.000 GPCI

Malpractice0.07

0.07 RVUs× 1.000 GPCI

Adjusted RVUs

2.4600

Conversion factor

$33.4009

Medicare rate

$82.17

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

The exact Idaho inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,770

Code
38792
Physician work
0.63
Practice expense
1.76
Malpractice
0.07

GPCI2026.csv

47

Locality
Idaho
Physician work
1.000
Practice expense
0.920
Malpractice
0.473
Office calculation for 38792 in Idaho
ComponentRVULocality factorAdjusted
Physician work0.63× 1.0000.6300
Practice expense1.76× 0.9201.6192
Malpractice0.07× 0.4730.0331
Total RVUs2.2823
Conversion factor× 33.4009

Office rate, Idaho$76.23

Office: (0.63 × 1 + 1.76 × 0.92 + 0.07 × 0.473) × $33.4009 = $76.23

Facility: (0.63 × 1 + 0.12 × 0.92 + 0.07 × 0.473) × $33.4009 = $25.84

Open 38792 in the RVU calculator

Payment rules and modifiers for 38792

The CMS indicators that decide how 38792 is paid alongside other services.

CMS payment indicators · 38792

Sentinel node injection, radioactive tracer

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is 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)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

38792 without 50 · national office

$82.17

Sentinel node injection, radioactive tracer

38792-50 · Bilateral: 150%

$123.26

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 38792 has changed in Idaho

38792 · Office / nonfacility

$76.23

Effective 2026-10-01

The base rate is $3.06 higher than on 2025-10-01, moving from $73.17 to $76.23 (4.2%).

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
  1. January 1, 2026

    RVU26A

    $73.17changed to$76.23

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.65 changed to 0.63
    • Practice expense RVU 1.74 changed to 1.76
    • Practice expense GPCI 0.908 changed to 0.920
    • Malpractice GPCI 0.461 changed to 0.473

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $75.46changed to$73.17

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.08 changed to 0.07

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $74.22changed to$75.46

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $75.87changed to$74.22

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense GPCI 0.893 changed to 0.908
    • Malpractice GPCI 0.439 changed to 0.461
  5. January 1, 2023

    RVU23A

    $75.99changed to$75.87

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.72 changed to 1.74
    • Malpractice RVU 0.09 changed to 0.08
    • Practice expense GPCI 0.877 changed to 0.893
    • Malpractice GPCI 0.416 changed to 0.439

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $76.62changed to$75.99

    • Conversion factor 34.8931 changed to 34.6062

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $77.32changed to$76.62

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.63 changed to 1.72
    • Practice expense GPCI 0.890 changed to 0.877
    • Malpractice GPCI 0.464 changed to 0.416

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $77.24changed to$77.32

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.61 changed to 1.63
    • Malpractice RVU 0.08 changed to 0.09
    • Practice expense GPCI 0.902 changed to 0.890
    • Malpractice GPCI 0.512 changed to 0.464

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    No ratechanged to$77.24

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$76.23$25.84RVU26D
2026-07-01$76.23$25.84RVU26C
2026-04-01$76.23$25.84RVU26B
2026-01-01$76.23$25.84RVU26A
2025-10-01$73.17$28.82RVU25D
2025-07-01$73.17$28.82RVU25C
2025-04-01$73.17$28.82RVU25B
2025-01-01$73.17$28.82RVU25A
2024-10-01$75.46$29.51RVU24D
2024-07-01$75.46$29.51RVU24C
2024-04-01$75.46$29.51RVU24B
2024-03-09$75.46$29.51RVU24AR
2024-01-01$74.22$29.03RVU24A
2023-10-01$75.87$30.18RVU23D
2023-07-01$75.87$30.18RVU23C
2023-04-01$75.87$30.18RVU23B
2023-01-01$75.87$30.18RVU23A
2022-10-01$75.99$30.77RVU22D
2022-07-01$75.99$30.77RVU22C
2022-04-01$75.99$30.77RVU22B
2022-01-01$75.99$30.77RVU22A
2021-10-01$76.62$31.03RVU21D
2021-07-01$76.62$31.03RVU21C
2021-04-01$76.62$31.03RVU21B
2021-01-01$76.62$31.03RVU21A
2020-10-01$77.32$32.35RVU20D
2020-07-01$77.32$32.35RVU20C
2020-04-01$77.32$32.35RVU20B
2020-01-01$77.32$32.35RVU20A
2019-10-01$77.24$32.38RVU19D
2019-07-01$77.24$32.38RVU19C
2019-04-01$77.24$32.38RVU19B
2019-01-01$77.24$32.38RVU19A
2018-10-01Not available in this setting$38.01RVU18D
2018-07-01Not available in this setting$38.01RVU18C
2018-04-01Not available in this setting$38.01RVU18B
2018-01-01Not available in this setting$38.01RVU18AR1
2017-10-01Not available in this setting$38.03RVU17D
2017-07-01Not available in this setting$38.03RVU17C
2017-04-01Not available in this setting$38.03RVU17B
2017-01-01Not available in this setting$38.03RVU17A
2016-10-01Not available in this setting$37.90RVU16D
2016-07-01Not available in this setting$37.90RVU16C
2016-04-01Not available in this setting$37.90RVU16B
2016-01-01Not available in this setting$37.90RVU16A
2015-10-01Not available in this setting$37.85RVU15D
2015-07-01Not available in this setting$37.85RVU15C
2015-04-01Not available in this setting$37.66RVU15B
2015-01-01Not available in this setting$37.66RVU15A
2014-10-01Not available in this setting$38.20RVU14D
2014-07-01Not available in this setting$38.20RVU14C
2014-04-01Not available in this setting$38.20RVU14B
2014-01-01Not available in this setting$38.20RVU14A
2013-10-01Not available in this setting$37.89RVU13D
2013-07-01Not available in this setting$37.89RVU13C
2013-04-01Not available in this setting$37.89RVU13B
2013-01-01Not available in this setting$37.89RVU13AR

Price 38792 for an earlier date of service

Where the Idaho rate applies

Idaho is a Medicare payment area, not a city. Our Census mapping connects it to 235 cities and communities in Idaho. Some span more than one payment area; confirm with the service ZIP.

  • Aberdeen
  • Acequia
  • Albion
  • American Falls
  • Ammon
  • Arbon Valley
  • Arco
  • Arimo

Browse all communities in Idaho

38792 billing questions

How is 38792 different from sentinel node removal?

38792 reports the radioactive tracer injection used to locate the node. Report the appropriate biopsy or excision code separately when the surgeon removes a node.

Does this code report lymphoscintigraphy imaging?

No. It reports the injection procedure; lymphatic and node imaging is a separate service, such as 78195 when performed and supported.

Can 38792 be reported with nonradioactive sentinel node mapping?

It may be reported with 38900 when both radioactive tracer injection and the separately documented nonradioactive intraoperative mapping technique are performed.

When is modifier 50 appropriate?

Use modifier 50 when the injection service is performed bilaterally. CMS pays the bilateral procedure at 150%.

What documentation supports reporting 38792?

Document the tracer injection, injection site and side, and its purpose in localizing sentinel nodes. Identify any separately performed imaging or node excision in the record.

How does the 0-day global period affect same-day care?

Same-day preoperative and postoperative care is included in the procedure's 0-day global period.

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 38792PPRRVU2026_Oct_nonQPP.csv, line 4,770 (RVU26D)
Geographic factors for IdahoGPCI2026.csv, line 47 (RVU26D)

Open CMS sourceHow we calculate rates

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