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CPT code 78300: Bone scan, limited area2026 Medicare rate & RVUs in King County, WA

Reports radionuclide imaging of a defined, limited skeletal region when the clinical question concerns a localized bone finding rather than a broader survey.

CMS RVU26DEffective Oct 1, 2026One payment locality2.9K Medicare services in 2024

In King County, WA, Medicare pays $240.30 for 78300 in the office.

$240.30Office (non-facility)
Not available in this settingHospital or facility
+20.5%vs the national office rate ($199.40)

Check a contract rate as a % of Medicare · 78300 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 78300 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in King County, WA
  2. What 78300 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 78300 covers

This nuclear medicine study images a defined, limited portion of the skeleton. A gamma camera records the distribution of radiopharmaceutical uptake in that region. It may be used to investigate a localized concern, such as focal bone pain or suspected occult injury. The study is typically performed in a nuclear medicine department, with interpretation by a nuclear medicine physician or radiologist.

Select 78300 when the imaging is confined to a limited region; the documented area and images should support that scope. Imaging of multiple areas or the whole body is represented by different bone-imaging codes, while a three-phase study has its own code. Documentation should identify the region examined and include the images and interpreting physician’s report. For Medicare, modifier 26 identifies the professional interpretation and modifier TC identifies the technical service, including equipment and staff. Reporting without either modifier represents the global service.

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 King County, WA compares for 78300

Across 109 of 109 payment localities, the office rate for 78300 runs from $173.42 in Arkansas to $279.07 in San Benito County, CA. King County, WA pays $240.30. The RVUs are the same everywhere; the geographic indexes change the dollars.

78300 in King County, WA vs other payment areas
  1. King County, WA · this page$240.30
  2. Rest of Washington · Washington$208.58−$31.72
  3. Los Angeles, CA · California$232.01−$8.29
  4. Washington, DC area · District of Columbia$232.28−$8.02
  5. Miami, FL · Florida$209.74−$30.56
  6. Chicago, IL · Illinois$203.03−$37.27
  7. Manhattan, NY · New York$230.59−$9.71

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

Every other payment area

78300 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$220.05—
AlabamaAlabama$176.36—
ArkansasArkansas$173.42—
ArizonaArizona$193.62—
Bakersfield, CACalifornia$216.03—
Chico, CACalifornia$215.84—
El Centro, CACalifornia$215.85—
Fresno, CACalifornia$215.84—

78300 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$173.42

$247.45

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

View every state and territory as a table
78300 office rate range by state
State / territoryOffice rate rangeLocalities
AK$220.051
AL$176.361
AR$173.421
AZ$193.621
CA$215.84–$279.0729
CO$210.561
CT$213.881
DC$232.281
DE$197.171
FL$192.61–$209.743
GA$180.63–$202.702
GU$222.861
HI$222.861
IA$183.121
ID$184.161
IL$185.10–$205.884
IN$185.431
KS$181.381
KY$179.551
LA$178.92–$189.212
MA$208.72–$234.412
MD$201.57–$232.283
ME$184.46–$197.072
MI$184.23–$194.572
MN$203.141
MO$174.88–$190.893
MS$174.231
MT$199.401
NC$186.801
ND$198.211
NE$184.501
NH$206.421
NJ$216.72–$229.182
NM$185.091
NV$199.251
NY$189.94–$235.925
OH$183.991
OK$179.981
OR$198.10–$218.902
PA$184.75–$207.422
PR$201.321
RI$205.421
SC$185.621
SD$198.071
TN$182.341
TX$183.30–$209.508
UT$188.561
VA$195.80–$232.282
VI$201.321
VT$196.641
WA$208.58–$240.302
WI$190.571
WV$177.031
WY$198.881

See 78300 in every payment locality

How the 78300 rate is calculated

Each of 78300’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 · 78300

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.60

0.60 RVUs× 1.000 GPCI

Practice expense5.31

5.31 RVUs× 1.000 GPCI

Malpractice0.06

0.06 RVUs× 1.000 GPCI

Adjusted RVUs

5.9700

Conversion factor

$33.4009

Medicare rate

$199.40

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

The exact King County, WA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

9,319

Code
78300
Physician work
0.60
Practice expense
5.31
Malpractice
0.06

GPCI2026.csv

108

Locality
King County, WA
Physician work
1.050
Practice expense
1.227
Malpractice
0.817
Office calculation for 78300 in King County, WA
ComponentRVULocality factorAdjusted
Physician work0.60× 1.0500.6300
Practice expense5.31× 1.2276.5154
Malpractice0.06× 0.8170.0490
Total RVUs7.1944
Conversion factor× 33.4009

Office rate, King County, WA$240.30

Office: (0.6 × 1.05 + 5.31 × 1.227 + 0.06 × 0.817) × $33.4009 = $240.30

Open 78300 in the RVU calculator

Payment rules and modifiers for 78300

The CMS indicators that decide how 78300 is paid alongside other services.

CMS payment indicators · 78300

Bone scan, limited area

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
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/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

78300 without 26 · national office

$199.40

Bone scan, limited area

78300-26 · Professional component

$28.06

Pays only the interpretation and report.

When to use modifier 26

Codes related to 78300

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

Codes related to 78300
CodeHow it relatesOffice range, King County, WA
Same family
78305Bone imaging, multiple areasBone imaging of multiple areas rather than a limited region.$291.92
78306Bone imaging, whole bodyWhole-body bone imaging within the bone-imaging family.$311.97
Used instead
78315Bone imaging, three-phase acquisitionUsed for a three-phase bone imaging study rather than limited-area imaging.$364.90

How 78300 has changed in King County, WA

78300 · Office / nonfacility

$240.30

Effective 2026-10-01

The base rate is $4.63 higher than on 2025-10-01, moving from $235.67 to $240.30 (2.0%).

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

    $235.67changed to$240.30

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.62 changed to 0.60
    • Practice expense RVU 5.40 changed to 5.31
    • Work GPCI 1.043 changed to 1.050
    • Practice expense GPCI 1.220 changed to 1.227
    • Malpractice GPCI 0.853 changed to 0.817

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $247.40changed to$235.67

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 5.52 changed to 5.40

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $243.36changed to$247.40

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $255.13changed to$243.36

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 5.65 changed to 5.52
    • Malpractice RVU 0.08 changed to 0.06
    • Work GPCI 1.039 changed to 1.043
    • Practice expense GPCI 1.207 changed to 1.220
    • Malpractice GPCI 0.815 changed to 0.853

  5. January 1, 2023

    RVU23A

    $262.79changed to$255.13

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 5.77 changed to 5.65
    • Work GPCI 1.036 changed to 1.039
    • Practice expense GPCI 1.194 changed to 1.207
    • Malpractice GPCI 0.776 changed to 0.815

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $277.05changed to$262.79

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.06 changed to 5.77

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $273.20changed to$277.05

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.88 changed to 6.06
    • Malpractice RVU 0.06 changed to 0.08
    • Work GPCI 1.031 changed to 1.036
    • Practice expense GPCI 1.170 changed to 1.194
    • Malpractice GPCI 0.854 changed to 0.776

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $270.70changed to$273.20

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.95 changed to 5.88
    • Work GPCI 1.027 changed to 1.031
    • Practice expense GPCI 1.146 changed to 1.170
    • Malpractice GPCI 0.931 changed to 0.854

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $276.18changed to$270.70

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 6.09 changed to 5.95

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $215.05changed to$276.18

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.61 changed to 6.09
    • Malpractice RVU 0.07 changed to 0.06
    • Work GPCI 1.026 changed to 1.027
    • Practice expense GPCI 1.151 changed to 1.146
    • Malpractice GPCI 0.713 changed to 0.931

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $213.40changed to$215.05

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.58 changed to 4.61
    • Work GPCI 1.025 changed to 1.026
    • Practice expense GPCI 1.155 changed to 1.151
    • Malpractice GPCI 0.495 changed to 0.713

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $212.74changed to$213.40

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.55 changed to 4.58
    • Malpractice RVU 0.06 changed to 0.07

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $211.68changed to$212.74

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $208.80changed to$211.68

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 4.48 changed to 4.55
    • Practice expense GPCI 1.150 changed to 1.155
    • Malpractice GPCI 0.688 changed to 0.495

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $209.08changed to$208.80

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 4.77 changed to 4.48
    • Practice expense GPCI 1.144 changed to 1.150
    • Malpractice GPCI 0.881 changed to 0.688

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $209.08

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$240.30Not available in this settingRVU26D
2026-07-01$240.30Not available in this settingRVU26C
2026-04-01$240.30Not available in this settingRVU26B
2026-01-01$240.30Not available in this settingRVU26A
2025-10-01$235.67Not available in this settingRVU25D
2025-07-01$235.67Not available in this settingRVU25C
2025-04-01$235.67Not available in this settingRVU25B
2025-01-01$235.67Not available in this settingRVU25A
2024-10-01$247.40Not available in this settingRVU24D
2024-07-01$247.40Not available in this settingRVU24C
2024-04-01$247.40Not available in this settingRVU24B
2024-03-09$247.40Not available in this settingRVU24AR
2024-01-01$243.36Not available in this settingRVU24A
2023-10-01$255.13Not available in this settingRVU23D
2023-07-01$255.13Not available in this settingRVU23C
2023-04-01$255.13Not available in this settingRVU23B
2023-01-01$255.13Not available in this settingRVU23A
2022-10-01$262.79Not available in this settingRVU22D
2022-07-01$262.79Not available in this settingRVU22C
2022-04-01$262.79Not available in this settingRVU22B
2022-01-01$262.79Not available in this settingRVU22A
2021-10-01$277.05Not available in this settingRVU21D
2021-07-01$277.05Not available in this settingRVU21C
2021-04-01$277.05Not available in this settingRVU21B
2021-01-01$277.05Not available in this settingRVU21A
2020-10-01$273.20Not available in this settingRVU20D
2020-07-01$273.20Not available in this settingRVU20C
2020-04-01$273.20Not available in this settingRVU20B
2020-01-01$273.20Not available in this settingRVU20A
2019-10-01$270.70Not available in this settingRVU19D
2019-07-01$270.70Not available in this settingRVU19C
2019-04-01$270.70Not available in this settingRVU19B
2019-01-01$270.70Not available in this settingRVU19A
2018-10-01$276.18Not available in this settingRVU18D
2018-07-01$276.18Not available in this settingRVU18C
2018-04-01$276.18Not available in this settingRVU18B
2018-01-01$276.18Not available in this settingRVU18AR1
2017-10-01$215.05Not available in this settingRVU17D
2017-07-01$215.05Not available in this settingRVU17C
2017-04-01$215.05Not available in this settingRVU17B
2017-01-01$215.05Not available in this settingRVU17A
2016-10-01$213.40Not available in this settingRVU16D
2016-07-01$213.40Not available in this settingRVU16C
2016-04-01$213.40Not available in this settingRVU16B
2016-01-01$213.40Not available in this settingRVU16A
2015-10-01$212.74Not available in this settingRVU15D
2015-07-01$212.74Not available in this settingRVU15C
2015-04-01$211.68Not available in this settingRVU15B
2015-01-01$211.68Not available in this settingRVU15A
2014-10-01$208.80Not available in this settingRVU14D
2014-07-01$208.80Not available in this settingRVU14C
2014-04-01$208.80Not available in this settingRVU14B
2014-01-01$208.80Not available in this settingRVU14A
2013-10-01$209.08Not available in this settingRVU13D
2013-07-01$209.08Not available in this settingRVU13C
2013-04-01$209.08Not available in this settingRVU13B
2013-01-01$209.08Not available in this settingRVU13AR

Price 78300 for an earlier date of service

Where the King County, WA rate applies

King County, WA is a Medicare payment area, not a city. Our Census mapping connects it to 63 cities and communities in Washington. Some span more than one payment area; confirm with the service ZIP.

  • Seattle
  • Algona
  • Ames Lake
  • 78300 in Auburn · multiple payment areas
  • Baring
  • Beaux Arts Village
  • Bellevue
  • Black Diamond

Browse all communities in Washington

78300 billing questions

How do I distinguish 78300 from 78305?

Use 78300 for imaging confined to a limited skeletal region. Use 78305 when multiple skeletal areas are imaged.

When is 78306 more appropriate?

78306 represents whole-body bone imaging. Choose based on the extent of the study performed and documented, not simply the reason for the scan.

How does 78315 differ from 78300?

78315 identifies a three-phase bone imaging study. Use 78300 for a limited-area study that is not reported as a three-phase examination.

How are the professional and technical services reported?

Use modifier 26 for the professional interpretation and modifier TC for the technical service. Reporting without a modifier represents the global service.

What documentation supports 78300?

Document the limited skeletal region examined, the imaging performed, and the interpreting physician’s report. The recorded extent should support a limited-area study rather than multiple-area or whole-body imaging.

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 78300PPRRVU2026_Oct_nonQPP.csv, line 9,319 (RVU26D)
Geographic factors for King County, WAGPCI2026.csv, line 108 (RVU26D)

Open CMS sourceHow we calculate rates

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