CPT code 98928: Osteopathic manipulation, seven to eight regions2026 Medicare rate & RVUs in King County, WA

Reports physician-performed osteopathic manipulation when manual treatment addresses somatic dysfunction in seven or eight distinct body regions during the encounter.

CMS RVU26DEffective Oct 1, 2026One payment locality84K Medicare services in 2024

In King County, WA, Medicare pays $82.23 for 98928 in the office and $53.54 when it’s performed in a hospital or facility.

$82.23Office (non-facility)
$53.54Hospital or facility
+11.9%vs the national office rate ($73.48)

Check a contract rate as a % of Medicare · 98928 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 98928 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in King County, WA
  2. What 98928 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 98928 covers

This service represents osteopathic manipulative treatment directed at somatic dysfunction in seven or eight body regions. A physician, commonly a doctor of osteopathic medicine, uses hands-on techniques to treat the affected regions. The regions counted are the head, cervical, thoracic, lumbar, sacral, pelvic, lower-extremity, upper-extremity, and rib-cage areas. Treatment may occur in an office or facility setting.

Select this level based on the distinct regions actually treated, not simply the regions examined or noted as dysfunctional. The record should identify the treated regions and support that manipulation was performed. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. Modifier 50 is inappropriate for bilateral adjustment. Assistant-at-surgery payment requires documentation of 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 King County, WA compares for 98928

Across 109 of 109 payment localities, the office rate for 98928 runs from $67.87 in Arkansas to $94.20 in Alaska. King County, WA pays $82.23. The RVUs are the same everywhere; the geographic indexes change the dollars.

98928 in King County, WA vs other payment areas
  1. King County, WA · this page$82.23
  2. Rest of Washington · Washington$75.12−$7.11
  3. Los Angeles, CA · California$80.12−$2.11
  4. Washington, DC area · District of Columbia$81.52−$0.71
  5. Miami, FL · Florida$78.36−$3.87
  6. Chicago, IL · Illinois$76.94−$5.29
  7. Manhattan, NY · New York$82.51+$0.28

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

Every other payment area

98928 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$94.20$69.30
AlabamaAlabama$68.50$48.04
ArkansasArkansas$67.87$47.79
ArizonaArizona$72.16$49.51
Bakersfield, CACalifornia$76.36$50.74
Chico, CACalifornia$76.11$50.49
El Centro, CACalifornia$76.12$50.50
Fresno, CACalifornia$76.11$50.49

98928 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.

$67.87

$94.20

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

View every state and territory as a table
98928 office rate range by state
State / territoryOffice rate rangeLocalities
AK$94.201
AL$68.501
AR$67.871
AZ$72.161
CA$76.11–$90.7629
CO$75.471
CT$77.201
DC$81.521
DE$73.061
FL$73.26–$78.363
GA$70.50–$74.582
GU$76.841
HI$76.841
IA$69.381
ID$69.711
IL$72.04–$76.944
IN$69.961
KS$69.281
KY$69.761
LA$69.73–$71.932
MA$75.32–$81.002
MD$74.07–$81.523
ME$70.06–$72.332
MI$71.02–$73.982
MN$72.761
MO$69.04–$71.963
MS$68.461
MT$73.481
NC$70.511
ND$72.091
NE$69.581
NH$74.491
NJ$78.20–$81.202
NM$71.321
NV$73.121
NY$71.20–$84.015
OH$70.741
OK$69.571
OR$72.66–$77.042
PA$70.75–$75.942
PR$73.801
RI$75.031
SC$70.721
SD$71.931
TN$69.511
TX$70.46–$75.138
UT$71.341
VA$72.26–$81.522
VI$73.801
VT$72.011
WA$75.12–$82.232
WI$70.531
WV$70.331
WY$72.871

See 98928 in every payment locality

How the 98928 rate is calculated

Each of 98928’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 · 98928

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.18

1.18 RVUs× 1.000 GPCI

Practice expense0.95

0.95 RVUs× 1.000 GPCI

Malpractice0.07

0.07 RVUs× 1.000 GPCI

Adjusted RVUs

2.2000

Conversion factor

$33.4009

Medicare rate

$73.48

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

12,940

Code
98928
Physician work
1.18
Practice expense
0.95
Malpractice
0.07

GPCI2026.csv

108

Locality
King County, WA
Physician work
1.050
Practice expense
1.227
Malpractice
0.817
Office calculation for 98928 in King County, WA
ComponentRVULocality factorAdjusted
Physician work1.18× 1.0501.2390
Practice expense0.95× 1.2271.1657
Malpractice0.07× 0.8170.0572
Total RVUs2.4618
Conversion factor× 33.4009

Office rate, King County, WA$82.23

Office: (1.18 × 1.05 + 0.95 × 1.227 + 0.07 × 0.817) × $33.4009 = $82.23

Facility: (1.18 × 1.05 + 0.25 × 1.227 + 0.07 × 0.817) × $33.4009 = $53.54

Open 98928 in the RVU calculator

Payment rules and modifiers for 98928

The CMS indicators that decide how 98928 is paid alongside other services.

CMS payment indicators · 98928

Osteopathic manipulation, seven to eight regions

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
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/technical0Physician service: no professional/technical split.

How 98928 has changed in King County, WA

98928 · Office / nonfacility

$82.23

Effective 2026-10-01

The base rate is $5.03 higher than on 2025-10-01, moving from $77.20 to $82.23 (6.5%).

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

    $77.20changed to$82.23

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.21 changed to 1.18
    • Practice expense RVU 0.88 changed to 0.95
    • Malpractice RVU 0.06 changed to 0.07
    • 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

    $79.33changed to$77.20

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.87 changed to 0.88
    • Malpractice RVU 0.07 changed to 0.06

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $78.03changed to$79.33

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $78.89changed to$78.03

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.84 changed to 0.87
    • 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

    $79.14changed to$78.89

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.82 changed to 0.84
    • 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

    $78.84changed to$79.14

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.81 changed to 0.82
    • Malpractice RVU 0.05 changed to 0.07

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $79.81changed to$78.84

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.78 changed to 0.81
    • Malpractice RVU 0.06 changed to 0.05
    • 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

    $78.60changed to$79.81

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 0.77 changed to 0.78
    • 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

    $79.34changed to$78.60

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.79 changed to 0.77

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $78.72changed to$79.34

    • Conversion factor 35.8887 changed to 35.9996
    • 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

    $77.73changed to$78.72

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.78 changed to 0.79
    • 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

    $78.24changed to$77.73

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 0.79 changed to 0.78
    • Malpractice RVU 0.05 changed to 0.06

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $77.85changed to$78.24

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $78.04changed to$77.85

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 0.78 changed to 0.79
    • Malpractice RVU 0.06 changed to 0.05
    • 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

    $77.08changed to$78.04

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 0.85 changed to 0.78
    • 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: $77.08

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$82.23$53.54RVU26D
2026-07-01$82.23$53.54RVU26C
2026-04-01$82.23$53.54RVU26B
2026-01-01$82.23$53.54RVU26A
2025-10-01$77.20$60.63RVU25D
2025-07-01$77.20$60.63RVU25C
2025-04-01$77.20$60.63RVU25B
2025-01-01$77.20$60.63RVU25A
2024-10-01$79.33$62.27RVU24D
2024-07-01$79.33$62.27RVU24C
2024-04-01$79.33$62.27RVU24B
2024-03-09$79.33$62.27RVU24AR
2024-01-01$78.03$61.26RVU24A
2023-10-01$78.89$62.53RVU23D
2023-07-01$78.89$62.53RVU23C
2023-04-01$78.89$62.53RVU23B
2023-01-01$78.89$62.53RVU23A
2022-10-01$79.14$63.44RVU22D
2022-07-01$79.14$63.44RVU22C
2022-04-01$79.14$63.44RVU22B
2022-01-01$79.14$63.44RVU22A
2021-10-01$78.84$63.43RVU21D
2021-07-01$78.84$63.43RVU21C
2021-04-01$78.84$63.43RVU21B
2021-01-01$78.84$63.43RVU21A
2020-10-01$79.81$64.61RVU20D
2020-07-01$79.81$64.61RVU20C
2020-04-01$79.81$64.61RVU20B
2020-01-01$79.81$64.61RVU20A
2019-10-01$78.60$64.14RVU19D
2019-07-01$78.60$64.14RVU19C
2019-04-01$78.60$64.14RVU19B
2019-01-01$78.60$64.14RVU19A
2018-10-01$79.34$64.07RVU18D
2018-07-01$79.34$64.07RVU18C
2018-04-01$79.34$64.07RVU18B
2018-01-01$79.34$64.07RVU18AR1
2017-10-01$78.72$63.44RVU17D
2017-07-01$78.72$63.44RVU17C
2017-04-01$78.72$63.44RVU17B
2017-01-01$78.72$63.44RVU17A
2016-10-01$77.73$62.84RVU16D
2016-07-01$77.73$62.84RVU16C
2016-04-01$77.73$62.84RVU16B
2016-01-01$77.73$62.84RVU16A
2015-10-01$78.24$63.30RVU15D
2015-07-01$78.24$63.30RVU15C
2015-04-01$77.85$62.99RVU15B
2015-01-01$77.85$62.99RVU15A
2014-10-01$78.04$63.62RVU14D
2014-07-01$78.04$63.62RVU14C
2014-04-01$78.04$63.62RVU14B
2014-01-01$78.04$63.62RVU14A
2013-10-01$77.08$61.90RVU13D
2013-07-01$77.08$61.90RVU13C
2013-04-01$77.08$61.90RVU13B
2013-01-01$77.08$61.90RVU13AR

Price 98928 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
  • 98928 in Auburn · multiple payment areas
  • Baring
  • Beaux Arts Village
  • Bellevue
  • Black Diamond

Browse all communities in Washington

98928 billing questions

How do I choose this code instead of 98927 or 98929?

Count the distinct body regions that received osteopathic manipulation. Use 98928 for seven or eight treated regions; 98927 represents five or six, and 98929 represents nine or ten.

Do regions that were only examined count toward the level?

No. The level is based on regions treated with manipulation, so documentation should distinguish those regions from areas that were only evaluated.

Can I append modifier 50 for treatment on both sides?

No. CMS identifies bilateral adjustment as inappropriate for this code.

What is included in the 0-day global period?

Same-day preoperative and postoperative care is included in the service under CMS's 0-day global-period rule.

Can an assistant or another surgeon be reported?

Assistant-at-surgery payment is limited to cases with documented medical necessity. Co-surgeons and team surgery are not permitted.

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 98928PPRRVU2026_Oct_nonQPP.csv, line 12,940 (RVU26D)
Geographic factors for King County, WAGPCI2026.csv, line 108 (RVU26D)

Open CMS sourceHow we calculate rates

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