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CPT code 77011: CT localization, stereotactic guidance2026 Medicare rate & RVUs in Connecticut

Reports CT guidance used to localize a target stereotactically, such as for planning a stereotactic radiosurgery procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality4.6K Medicare services in 2024

In Connecticut, Medicare pays $236.61 for 77011 in the office.

$236.61Office (non-facility)
Not available in this settingHospital or facility
+6.8%vs the national office rate ($221.45)

Check a contract rate as a % of Medicare · 77011 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 77011 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 77011 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 77011 covers

This service uses computed tomography to establish stereotactic coordinates for a target, rather than to guide a needle or monitor tissue ablation. A typical use is localizing an intracranial target for stereotactic radiosurgery. The service may be performed in a hospital or imaging setting by a radiologist or a radiation oncology team, with technical staff acquiring the CT images and a qualified clinician interpreting them.

Report 77011 when the documented purpose of the CT is stereotactic localization. The record should identify the target, the stereotactic purpose, and the imaging and interpretation supporting that service. CMS recognizes a professional component, reported with modifier 26, and a technical component, reported with modifier TC; a claim without either modifier represents the global service. The professional component covers interpretation, while the technical component covers equipment and staff. Do not select this code merely because CT images were obtained during another image-guided procedure; distinguish stereotactic localization from CT-guided needle placement or ablation.

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 Connecticut compares for 77011

Across 109 of 109 payment localities, the office rate for 77011 runs from $194.86 in Arkansas to $303.82 in San Benito County, CA. Connecticut pays $236.61. The RVUs are the same everywhere; the geographic indexes change the dollars.

77011 in Connecticut vs other payment areas
  1. Connecticut · this page$236.61
  2. Los Angeles, CA · California$254.99+$18.38
  3. Washington, DC area · District of Columbia$255.80+$19.19
  4. Miami, FL · Florida$232.89−$3.72
  5. Chicago, IL · Illinois$226.08−$10.53
  6. Manhattan, NY · New York$254.59+$17.98
  7. Alaska · Alaska$251.61+$15.00

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

Every other payment area

77011 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$197.87—
ArkansasArkansas$194.86—
ArizonaArizona$215.50—
Bakersfield, CACalifornia$238.37—
Chico, CACalifornia$238.10—
El Centro, CACalifornia$238.11—
Fresno, CACalifornia$238.10—
Hanford, CACalifornia$238.10—

77011 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.

$194.86

$270.96

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

View every state and territory as a table
77011 office rate range by state
State / territoryOffice rate rangeLocalities
AK$251.611
AL$197.871
AR$194.861
AZ$215.501
CA$238.10–$303.8229
CO$232.811
CT$236.611
DC$255.801
DE$219.221
FL$214.90–$232.893
GA$202.59–$224.972
GU$244.901
HI$244.901
IA$204.591
ID$205.691
IL$207.35–$228.634
IN$206.981
KS$202.901
KY$201.311
LA$200.71–$211.232
MA$231.04–$257.572
MD$223.78–$255.803
ME$206.09–$218.852
MI$206.19–$217.002
MN$224.771
MO$196.63–$212.843
MS$195.821
MT$221.441
NC$208.471
ND$219.861
NE$205.981
NH$228.471
NJ$239.79–$252.812
NM$207.101
NV$221.181
NY$211.69–$260.165
OH$205.861
OK$201.661
OR$219.94–$241.302
PA$206.59–$230.032
PR$223.381
RI$227.831
SC$207.421
SD$219.671
TN$203.891
TX$205.12–$231.638
UT$210.411
VA$217.61–$255.802
VI$223.381
VT$218.331
WA$230.83–$263.642
WI$212.071
WV$199.101
WY$220.751

See 77011 in every payment locality

How the 77011 rate is calculated

Each of 77011’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 · 77011

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.18

1.18 RVUs× 1.000 GPCI

Practice expense5.37

5.37 RVUs× 1.000 GPCI

Malpractice0.08

0.08 RVUs× 1.000 GPCI

Adjusted RVUs

6.6300

Conversion factor

$33.4009

Medicare rate

$221.45

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

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

8,934

Code
77011
Physician work
1.18
Practice expense
5.37
Malpractice
0.08

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Office calculation for 77011 in Connecticut
ComponentRVULocality factorAdjusted
Physician work1.18× 1.0201.2036
Practice expense5.37× 1.0775.7835
Malpractice0.08× 1.2100.0968
Total RVUs7.0839
Conversion factor× 33.4009

Office rate, Connecticut$236.61

Office: (1.18 × 1.02 + 5.37 × 1.077 + 0.08 × 1.21) × $33.4009 = $236.61

Open 77011 in the RVU calculator

Payment rules and modifiers for 77011

The CMS indicators that decide how 77011 is paid alongside other services.

CMS payment indicators · 77011

CT localization, stereotactic guidance

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)9The concept doesn’t apply.
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

77011 without 26 · national office

$221.45

CT localization, stereotactic guidance

77011-26 · Professional component

$60.12

Pays only the interpretation and report.

When to use modifier 26

Codes related to 77011

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

Codes related to 77011
CodeHow it relatesOffice range, Connecticut
Used instead
77012CT guidance, needle placementUse for CT guidance of needle placement rather than stereotactic localization.$130.04
77013CT guidance, parenchymal tissue ablationUse when CT guides and monitors percutaneous tissue ablation.No office rate

How 77011 has changed in Connecticut

77011 · Office / nonfacility

$236.61

Effective 2026-10-01

The base rate is $8.21 higher than on 2025-10-01, moving from $228.40 to $236.61 (3.6%).

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

    $228.40changed to$236.61

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.21 changed to 1.18
    • Practice expense RVU 5.25 changed to 5.37
    • Work GPCI 1.022 changed to 1.020
    • Practice expense GPCI 1.091 changed to 1.077
    • Malpractice GPCI 1.207 changed to 1.210

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $238.71changed to$228.40

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 5.34 changed to 5.25
    • Malpractice RVU 0.09 changed to 0.08

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $234.81changed to$238.71

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $247.90changed to$234.81

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 5.42 changed to 5.34
    • Work GPCI 1.030 changed to 1.022
    • Practice expense GPCI 1.102 changed to 1.091
    • Malpractice GPCI 1.070 changed to 1.207

  5. January 1, 2023

    RVU23A

    $256.82changed to$247.90

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 5.46 changed to 5.42
    • Work GPCI 1.037 changed to 1.030
    • Practice expense GPCI 1.114 changed to 1.102
    • Malpractice GPCI 0.934 changed to 1.070

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $264.33changed to$256.82

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 5.59 changed to 5.46
    • Malpractice RVU 0.10 changed to 0.09

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $260.17changed to$264.33

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.26 changed to 5.59
    • Work GPCI 1.029 changed to 1.037
    • Practice expense GPCI 1.113 changed to 1.114
    • Malpractice GPCI 1.094 changed to 0.934

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $255.78changed to$260.17

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.17 changed to 5.26
    • Malpractice RVU 0.09 changed to 0.10
    • Work GPCI 1.021 changed to 1.029
    • Practice expense GPCI 1.112 changed to 1.113
    • Malpractice GPCI 1.255 changed to 1.094

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $253.10changed to$255.78

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.11 changed to 5.17

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $250.08changed to$253.10

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 5.03 changed to 5.11
    • Work GPCI 1.023 changed to 1.021
    • Practice expense GPCI 1.117 changed to 1.112
    • Malpractice GPCI 1.244 changed to 1.255

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $248.17changed to$250.08

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.99 changed to 5.03
    • Malpractice RVU 0.08 changed to 0.09
    • Work GPCI 1.024 changed to 1.023
    • Practice expense GPCI 1.121 changed to 1.117
    • Malpractice GPCI 1.232 changed to 1.244

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $244.56changed to$248.17

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.90 changed to 4.99
    • Malpractice RVU 0.06 changed to 0.08

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $243.34changed to$244.56

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $248.49changed to$243.34

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 5.05 changed to 4.90
    • Malpractice RVU 0.05 changed to 0.06
    • Practice expense GPCI 1.116 changed to 1.121
    • Malpractice GPCI 1.234 changed to 1.232

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $248.19changed to$248.49

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 5.40 changed to 5.05
    • Practice expense GPCI 1.110 changed to 1.116
    • Malpractice GPCI 1.235 changed to 1.234

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $248.19

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$236.61Not available in this settingRVU26D
2026-07-01$236.61Not available in this settingRVU26C
2026-04-01$236.61Not available in this settingRVU26B
2026-01-01$236.61Not available in this settingRVU26A
2025-10-01$228.40Not available in this settingRVU25D
2025-07-01$228.40Not available in this settingRVU25C
2025-04-01$228.40Not available in this settingRVU25B
2025-01-01$228.40Not available in this settingRVU25A
2024-10-01$238.71Not available in this settingRVU24D
2024-07-01$238.71Not available in this settingRVU24C
2024-04-01$238.71Not available in this settingRVU24B
2024-03-09$238.71Not available in this settingRVU24AR
2024-01-01$234.81Not available in this settingRVU24A
2023-10-01$247.90Not available in this settingRVU23D
2023-07-01$247.90Not available in this settingRVU23C
2023-04-01$247.90Not available in this settingRVU23B
2023-01-01$247.90Not available in this settingRVU23A
2022-10-01$256.82Not available in this settingRVU22D
2022-07-01$256.82Not available in this settingRVU22C
2022-04-01$256.82Not available in this settingRVU22B
2022-01-01$256.82Not available in this settingRVU22A
2021-10-01$264.33Not available in this settingRVU21D
2021-07-01$264.33Not available in this settingRVU21C
2021-04-01$264.33Not available in this settingRVU21B
2021-01-01$264.33Not available in this settingRVU21A
2020-10-01$260.17Not available in this settingRVU20D
2020-07-01$260.17Not available in this settingRVU20C
2020-04-01$260.17Not available in this settingRVU20B
2020-01-01$260.17Not available in this settingRVU20A
2019-10-01$255.78Not available in this settingRVU19D
2019-07-01$255.78Not available in this settingRVU19C
2019-04-01$255.78Not available in this settingRVU19B
2019-01-01$255.78Not available in this settingRVU19A
2018-10-01$253.10Not available in this settingRVU18D
2018-07-01$253.10Not available in this settingRVU18C
2018-04-01$253.10Not available in this settingRVU18B
2018-01-01$253.10Not available in this settingRVU18AR1
2017-10-01$250.08Not available in this settingRVU17D
2017-07-01$250.08Not available in this settingRVU17C
2017-04-01$250.08Not available in this settingRVU17B
2017-01-01$250.08Not available in this settingRVU17A
2016-10-01$248.17Not available in this settingRVU16D
2016-07-01$248.17Not available in this settingRVU16C
2016-04-01$248.17Not available in this settingRVU16B
2016-01-01$248.17Not available in this settingRVU16A
2015-10-01$244.56Not available in this settingRVU15D
2015-07-01$244.56Not available in this settingRVU15C
2015-04-01$243.34Not available in this settingRVU15B
2015-01-01$243.34Not available in this settingRVU15A
2014-10-01$248.49Not available in this settingRVU14D
2014-07-01$248.49Not available in this settingRVU14C
2014-04-01$248.49Not available in this settingRVU14B
2014-01-01$248.49Not available in this settingRVU14A
2013-10-01$248.19Not available in this settingRVU13D
2013-07-01$248.19Not available in this settingRVU13C
2013-04-01$248.19Not available in this settingRVU13B
2013-01-01$248.19Not available in this settingRVU13AR

Price 77011 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

  • Ansonia
  • Ball Pond
  • Baltic
  • Bantam
  • Bethel
  • Bethlehem Village
  • Bigelow Corners
  • Blue Hills

Browse all communities in Connecticut

77011 billing questions

How is 77011 different from CT-guided needle placement?

77011 is for CT used to establish stereotactic localization. Use 77012 when CT guides needle placement, such as for a biopsy, aspiration, injection, or localization device.

Can the professional and technical portions be billed separately?

Yes. Report modifier 26 for the professional interpretation or modifier TC for the technical service. Billing without either modifier represents the global service.

What documentation supports 77011?

Document the target, the stereotactic localization purpose, and the CT guidance and interpretation performed. The record should make clear that the service was not simply CT guidance for a needle procedure or ablation.

Is 77011 the code for CT-guided tissue ablation?

No. 77013 describes CT guidance and monitoring for percutaneous ablation; 77011 is for stereotactic localization.

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 77011PPRRVU2026_Oct_nonQPP.csv, line 8,934 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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