CPT code 64647: Trunk chemodenervation, six or more muscles2026 Medicare rate & RVUs in Tennessee

Reports botulinum toxin chemodenervation of six or more trunk muscles, such as paraspinal or abdominal muscles, for a documented movement or tone disorder.

CMS RVU26DEffective Oct 1, 2026One payment locality1.7K Medicare services in 2024

In Tennessee, Medicare pays $172.20 for 64647 in the office and $105.71 when it’s performed in a hospital or facility.

$172.20Office (non-facility)
$105.71Hospital or facility
−9.1%vs the national office rate ($189.38)

Check a contract rate as a % of Medicare · 64647 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 64647 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Tennessee
  2. What 64647 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 64647 covers

This service involves injecting a chemodenervating agent, commonly botulinum toxin, into six or more distinct trunk muscles to reduce unwanted muscle activity. Neurologists, physiatrists, and other qualified clinicians may perform it in an office or outpatient facility for conditions such as trunk spasticity or dystonia. Paraspinal and abdominal muscles are examples of trunk targets; the treated muscles should be identified in the record.

Select this code based on the number of distinct trunk muscles treated, not the number of needle passes or injection points. Documentation should support the indication and identify the muscles injected; report the toxin product separately when applicable. The procedure has a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery, and 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 Tennessee compares for 64647

Across 109 of 109 payment localities, the office rate for 64647 runs from $166.64 in Arkansas to $235.12 in San Benito County, CA. Tennessee pays $172.20. The RVUs are the same everywhere; the geographic indexes change the dollars.

64647 in Tennessee vs other payment areas
  1. Tennessee · this page$172.20
  2. Los Angeles, CA · California$205.60+$33.40
  3. Washington, DC area · District of Columbia$213.48+$41.28
  4. Miami, FL · Florida$219.18+$46.98
  5. Chicago, IL · Illinois$212.01+$39.81
  6. Manhattan, NY · New York$220.40+$48.20
  7. Alaska · Alaska$223.04+$50.84

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

Every other payment area

64647 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$169.15$105.15
ArkansasArkansas$166.64$103.80
ArizonaArizona$183.76$112.88
Bakersfield, CACalifornia$194.13$113.96
Chico, CACalifornia$192.78$112.61
El Centro, CACalifornia$192.86$112.69
Fresno, CACalifornia$192.78$112.61
Hanford, CACalifornia$192.78$112.61

64647 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.

$166.64

$223.04

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

View every state and territory as a table
64647 office rate range by state
State / territoryOffice rate rangeLocalities
AK$223.041
AL$169.151
AR$166.641
AZ$183.761
CA$192.78–$235.1229
CO$193.201
CT$202.261
DC$213.481
DE$186.791
FL$193.21–$219.183
GA$181.37–$194.612
GU$196.581
HI$196.581
IA$170.481
ID$172.271
IL$189.75–$212.014
IN$173.221
KS$171.131
KY$176.431
LA$176.74–$185.532
MA$192.60–$210.522
MD$189.95–$213.483
ME$174.76–$182.292
MI$182.50–$197.202
MN$180.641
MO$174.61–$184.433
MS$170.591
MT$189.351
NC$176.391
ND$179.461
NE$171.001
NH$191.551
NJ$203.31–$211.472
NM$184.121
NV$186.701
NY$179.23–$227.735
OH$180.481
OK$174.541
OR$184.01–$197.742
PA$179.95–$198.102
PR$190.281
RI$192.311
SC$178.981
SD$178.291
TN$172.201
TX$178.85–$195.498
UT$181.451
VA$182.71–$213.482
VI$190.281
VT$180.091
WA$191.79–$213.352
WI$173.461
WV$182.971
WY$185.041

See 64647 in every payment locality

How the 64647 rate is calculated

Each of 64647’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 · 64647

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.06

2.06 RVUs× 1.000 GPCI

Practice expense3.11

3.11 RVUs× 1.000 GPCI

Malpractice0.50

0.50 RVUs× 1.000 GPCI

Adjusted RVUs

5.6700

Conversion factor

$33.4009

Medicare rate

$189.38

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

The exact Tennessee inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

7,190

Code
64647
Physician work
2.06
Practice expense
3.11
Malpractice
0.50

GPCI2026.csv

95

Locality
Tennessee
Physician work
1.000
Practice expense
0.909
Malpractice
0.537
Office calculation for 64647 in Tennessee
ComponentRVULocality factorAdjusted
Physician work2.06× 1.0002.0600
Practice expense3.11× 0.9092.8270
Malpractice0.50× 0.5370.2685
Total RVUs5.1555
Conversion factor× 33.4009

Office rate, Tennessee$172.20

Office: (2.06 × 1 + 3.11 × 0.909 + 0.5 × 0.537) × $33.4009 = $172.20

Facility: (2.06 × 1 + 0.92 × 0.909 + 0.5 × 0.537) × $33.4009 = $105.71

Open 64647 in the RVU calculator

Payment rules and modifiers for 64647

The CMS indicators that decide how 64647 is paid alongside other services.

CMS payment indicators · 64647

Trunk chemodenervation, six or more muscles

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)0The 150% bilateral adjustment doesn’t apply.
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 51 · payment effect

With and without the modifier

64647 without 51 · national office

$189.38

Trunk chemodenervation, six or more muscles

64647-51 · Second procedure: 50%

$94.69

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 64647 has changed in Tennessee

64647 · Office / nonfacility

$172.20

Effective 2026-10-01

The base rate is $12.54 higher than on 2025-10-01, moving from $159.66 to $172.20 (7.9%).

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

    $159.66changed to$172.20

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.11 changed to 2.06
    • Practice expense RVU 2.82 changed to 3.11
    • Malpractice RVU 0.55 changed to 0.50
    • Practice expense GPCI 0.896 changed to 0.909
    • Malpractice GPCI 0.544 changed to 0.537

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $165.92changed to$159.66

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.85 changed to 2.82
    • Malpractice RVU 0.59 changed to 0.55

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $163.22changed to$165.92

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $165.47changed to$163.22

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 2.76 changed to 2.85
    • Practice expense GPCI 0.894 changed to 0.896
    • Malpractice GPCI 0.518 changed to 0.544
  5. January 1, 2023

    RVU23A

    $166.69changed to$165.47

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.72 changed to 2.76
    • Malpractice RVU 0.57 changed to 0.59
    • Practice expense GPCI 0.892 changed to 0.894
    • Malpractice GPCI 0.492 changed to 0.518

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $164.75changed to$166.69

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.63 changed to 2.72
    • Malpractice RVU 0.54 changed to 0.57

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $164.78changed to$164.75

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.42 changed to 2.63
    • Malpractice RVU 0.56 changed to 0.54
    • Practice expense GPCI 0.897 changed to 0.892
    • Malpractice GPCI 0.509 changed to 0.492

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $165.40changed to$164.78

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.39 changed to 2.42
    • Malpractice RVU 0.62 changed to 0.56
    • Practice expense GPCI 0.901 changed to 0.897
    • Malpractice GPCI 0.526 changed to 0.509

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $164.76changed to$165.40

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.37 changed to 2.39
    • Malpractice RVU 0.63 changed to 0.62

    Held through RVU19B, RVU19C, RVU19D.

  10. April 1, 2018

    RVU18B

    No ratechanged to$164.76

    Held through RVU18C, RVU18D.

  11. January 1, 2014

    RVU14A

    No ratechanged toNo rate

    Held through RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$172.20$105.71RVU26D
2026-07-01$172.20$105.71RVU26C
2026-04-01$172.20$105.71RVU26B
2026-01-01$172.20$105.71RVU26A
2025-10-01$159.66$116.48RVU25D
2025-07-01$159.66$116.48RVU25C
2025-04-01$159.66$116.48RVU25B
2025-01-01$159.66$116.48RVU25A
2024-10-01$165.92$120.29RVU24D
2024-07-01$165.92$120.29RVU24C
2024-04-01$165.92$120.29RVU24B
2024-03-09$165.92$120.29RVU24AR
2024-01-01$163.22$118.33RVU24A
2023-10-01$165.47$120.64RVU23D
2023-07-01$165.47$120.64RVU23C
2023-04-01$165.47$120.64RVU23B
2023-01-01$165.47$120.64RVU23A
2022-10-01$166.69$122.24RVU22D
2022-07-01$166.69$122.24RVU22C
2022-04-01$166.69$122.24RVU22B
2022-01-01$166.69$122.24RVU22A
2021-10-01$164.75$122.42RVU21D
2021-07-01$164.75$122.42RVU21C
2021-04-01$164.75$122.42RVU21B
2021-01-01$164.75$122.42RVU21A
2020-10-01$164.78$125.93RVU20D
2020-07-01$164.78$125.93RVU20C
2020-04-01$164.78$125.93RVU20B
2020-01-01$164.78$125.93RVU20A
2019-10-01$165.40$127.74RVU19D
2019-07-01$165.40$127.74RVU19C
2019-04-01$165.40$127.74RVU19B
2019-01-01$165.40$127.74RVU19A
2018-10-01$164.76$128.76RVU18D
2018-07-01$164.76$128.76RVU18C
2018-04-01$164.76$128.76RVU18B
2018-01-01Rate data unavailableRate data unavailableRVU18AR1
2017-10-01Rate data unavailableRate data unavailableRVU17D
2017-07-01Rate data unavailableRate data unavailableRVU17C
2017-04-01Rate data unavailableRate data unavailableRVU17B
2017-01-01Rate data unavailableRate data unavailableRVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 64647 for an earlier date of service

Where the Tennessee rate applies

Tennessee is a Medicare payment area, not a city. Our Census mapping connects it to 504 cities and communities in Tennessee. Some span more than one payment area; confirm with the service ZIP.

  • Adams
  • Adamsville
  • Alamo
  • Alcoa
  • Alexandria
  • Algood
  • Allardt
  • Altamont

Browse all communities in Tennessee

64647 billing questions

When should this code be selected instead of 64646?

Use 64647 when six or more trunk muscles are treated. Code 64646 is for one to five trunk muscles.

Do injection points determine the muscle count?

No. Select the code by the number of distinct muscles treated, not the number of needle passes or injection points. Document the muscles injected.

Can modifier 50 be used for injections on both sides of the trunk?

No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate.

Is the botulinum toxin product included in this service?

The code represents the chemodenervation procedure. Report the toxin product separately under its applicable drug code when separately reportable.

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

Same-day preoperative and postoperative care is included in the procedure's payment.

Can an assistant or co-surgeon be reported?

Medicare does not pay an assistant at surgery for this code. 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 64647PPRRVU2026_Oct_nonQPP.csv, line 7,190 (RVU26D)
Geographic factors for TennesseeGPCI2026.csv, line 95 (RVU26D)

Open CMS sourceHow we calculate rates

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