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CPT code 76511: Ocular ultrasound, quantitative A-scan only2026 Medicare rate & RVUs in Connecticut

Reports diagnostic eye ultrasound using quantitative A-scan measurements alone to assess ocular dimensions or structures when a B-scan is not performed.

CMS RVU26DEffective Oct 1, 2026One payment locality4.4K Medicare services in 2024

In Connecticut, Medicare pays $60.78 for 76511 in the office.

$60.78Office (non-facility)
Not available in this settingHospital or facility
+5.8%vs the national office rate ($57.45)

Check a contract rate as a % of Medicare · 76511 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 76511 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 76511 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 76511 covers

This diagnostic study uses reflected ultrasound signals to produce quantitative measurements of the eye. An ophthalmologist interprets the findings; trained ophthalmic staff may acquire the scan in an eye-care office or outpatient facility. It is appropriate when quantitative A-scan information is needed without a B-scan. It is distinct from A-scan biometry performed to support intraocular lens selection.

Report 76511 for the quantitative A-scan study alone, and retain documentation of the eye examined, diagnostic reason, measurements, and physician interpretation. The code has professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies equipment and staff, and no modifier represents the global service. When multiple ophthalmic diagnostic procedures are billed, the CMS multiple-procedure reduction applies to the technical component. For bilateral services, each side is paid separately at 100%.

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 76511

Across 109 of 109 payment localities, the office rate for 76511 runs from $52.04 in Arkansas to $75.36 in San Benito County, CA. Connecticut pays $60.78. The RVUs are the same everywhere; the geographic indexes change the dollars.

76511 in Connecticut vs other payment areas
  1. Connecticut · this page$60.78
  2. Los Angeles, CA · California$64.68+$3.90
  3. Washington, DC area · District of Columbia$65.06+$4.28
  4. Miami, FL · Florida$59.95−$0.83
  5. Chicago, IL · Illinois$58.64−$2.14
  6. Manhattan, NY · New York$65.01+$4.23
  7. Alaska · Alaska$69.85+$9.07

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

Every other payment area

76511 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$52.65—
ArkansasArkansas$52.04—
ArizonaArizona$56.24—
Bakersfield, CACalifornia$61.04—
Chico, CACalifornia$60.95—
El Centro, CACalifornia$60.96—
Fresno, CACalifornia$60.95—
Hanford, CACalifornia$60.95—

76511 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.

$52.04

$69.85

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

View every state and territory as a table
76511 office rate range by state
State / territoryOffice rate rangeLocalities
AK$69.851
AL$52.651
AR$52.041
AZ$56.241
CA$60.95–$75.3629
CO$59.861
CT$60.781
DC$65.061
DE$57.051
FL$56.20–$59.953
GA$53.68–$58.222
GU$62.111
HI$62.111
IA$53.981
ID$54.211
IL$54.69–$59.084
IN$54.471
KS$53.661
KY$53.391
LA$53.27–$55.412
MA$59.56–$65.222
MD$58.03–$65.063
ME$54.31–$56.882
MI$54.40–$56.652
MN$58.031
MO$52.45–$55.723
MS$52.261
MT$57.451
NC$54.791
ND$57.051
NE$54.261
NH$58.851
NJ$61.66–$64.572
NM$54.591
NV$57.371
NY$55.45–$66.175
OH$54.321
OK$53.441
OR$57.11–$61.612
PA$54.45–$59.432
PR$57.841
RI$58.961
SC$54.611
SD$57.011
TN$53.861
TX$54.16–$59.518
UT$55.221
VA$56.64–$65.062
VI$57.841
VT$56.761
WA$59.47–$66.552
WI$55.471
WV$53.011
WY$57.281

See 76511 in every payment locality

How the 76511 rate is calculated

Each of 76511’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 · 76511

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.62

0.62 RVUs× 1.000 GPCI

Practice expense1.08

1.08 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

1.7200

Conversion factor

$33.4009

Medicare rate

$57.45

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

8,709

Code
76511
Physician work
0.62
Practice expense
1.08
Malpractice
0.02

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Office calculation for 76511 in Connecticut
ComponentRVULocality factorAdjusted
Physician work0.62× 1.0200.6324
Practice expense1.08× 1.0771.1632
Malpractice0.02× 1.2100.0242
Total RVUs1.8198
Conversion factor× 33.4009

Office rate, Connecticut$60.78

Office: (0.62 × 1.02 + 1.08 × 1.077 + 0.02 × 1.21) × $33.4009 = $60.78

Open 76511 in the RVU calculator

Payment rules and modifiers for 76511

The CMS indicators that decide how 76511 is paid alongside other services.

CMS payment indicators · 76511

Ocular ultrasound, quantitative A-scan only

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures7Diagnostic ophthalmology reduction applies to the technical component.
Bilateral (modifier 50)3Each side paid at 100% (no 150% cap).
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

76511 without 26 · national office

$57.45

Ocular ultrasound, quantitative A-scan only

76511-26 · Professional component

$35.07

Pays only the interpretation and report.

When to use modifier 26

Codes related to 76511

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

Codes related to 76511
CodeHow it relatesOffice range, Connecticut
Used instead
76510Eye ultrasound, B-scan and quantitative A-scanUse when quantitative A-scan and B-scan are both performed during the same encounter.$72.90
76512Eye ultrasound, diagnostic B-scanReports diagnostic B-scan alone rather than quantitative A-scan alone.$51.56
76516Eye biometry, ultrasound A-scanA-scan biometry service when intraocular lens power calculation is not included.$50.79
76519Ocular biometry, ultrasound with lens calculationA-scan biometry service that includes intraocular lens power calculation.$73.90

How 76511 has changed in Connecticut

76511 · Office / nonfacility

$60.78

Effective 2026-10-01

The base rate is $2.49 higher than on 2025-10-01, moving from $58.29 to $60.78 (4.3%).

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

    $58.29changed to$60.78

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.64 changed to 0.62
    • Practice expense RVU 1.03 changed to 1.08
    • 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

    $60.71changed to$58.29

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 1.05 changed to 1.03

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $59.72changed to$60.71

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $61.90changed to$59.72

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.04 changed to 1.05
    • 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

    $62.55changed to$61.90

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.01 changed to 1.04
    • 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

    $63.46changed to$62.55

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.02 changed to 1.01

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $68.34changed to$63.46

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.09 changed to 1.02
    • 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

    $75.35changed to$68.34

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.27 changed to 1.09
    • 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

    $91.28changed to$75.35

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 1.67 changed to 1.27

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $112.37changed to$91.28

    • Conversion factor 35.8887 changed to 35.9996
    • Work RVU 0.94 changed to 0.64
    • Practice expense RVU 1.92 changed to 1.67
    • 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

    $111.61changed to$112.37

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 1.90 changed to 1.92
    • 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

    $113.62changed to$111.61

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 1.94 changed to 1.90

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $113.05changed to$113.62

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $112.52changed to$113.05

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.93 changed to 1.94
    • 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

    $112.14changed to$112.52

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 2.08 changed to 1.93
    • 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: $112.14

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$60.78Not available in this settingRVU26D
2026-07-01$60.78Not available in this settingRVU26C
2026-04-01$60.78Not available in this settingRVU26B
2026-01-01$60.78Not available in this settingRVU26A
2025-10-01$58.29Not available in this settingRVU25D
2025-07-01$58.29Not available in this settingRVU25C
2025-04-01$58.29Not available in this settingRVU25B
2025-01-01$58.29Not available in this settingRVU25A
2024-10-01$60.71Not available in this settingRVU24D
2024-07-01$60.71Not available in this settingRVU24C
2024-04-01$60.71Not available in this settingRVU24B
2024-03-09$60.71Not available in this settingRVU24AR
2024-01-01$59.72Not available in this settingRVU24A
2023-10-01$61.90Not available in this settingRVU23D
2023-07-01$61.90Not available in this settingRVU23C
2023-04-01$61.90Not available in this settingRVU23B
2023-01-01$61.90Not available in this settingRVU23A
2022-10-01$62.55Not available in this settingRVU22D
2022-07-01$62.55Not available in this settingRVU22C
2022-04-01$62.55Not available in this settingRVU22B
2022-01-01$62.55Not available in this settingRVU22A
2021-10-01$63.46Not available in this settingRVU21D
2021-07-01$63.46Not available in this settingRVU21C
2021-04-01$63.46Not available in this settingRVU21B
2021-01-01$63.46Not available in this settingRVU21A
2020-10-01$68.34Not available in this settingRVU20D
2020-07-01$68.34Not available in this settingRVU20C
2020-04-01$68.34Not available in this settingRVU20B
2020-01-01$68.34Not available in this settingRVU20A
2019-10-01$75.35Not available in this settingRVU19D
2019-07-01$75.35Not available in this settingRVU19C
2019-04-01$75.35Not available in this settingRVU19B
2019-01-01$75.35Not available in this settingRVU19A
2018-10-01$91.28Not available in this settingRVU18D
2018-07-01$91.28Not available in this settingRVU18C
2018-04-01$91.28Not available in this settingRVU18B
2018-01-01$91.28Not available in this settingRVU18AR1
2017-10-01$112.37Not available in this settingRVU17D
2017-07-01$112.37Not available in this settingRVU17C
2017-04-01$112.37Not available in this settingRVU17B
2017-01-01$112.37Not available in this settingRVU17A
2016-10-01$111.61Not available in this settingRVU16D
2016-07-01$111.61Not available in this settingRVU16C
2016-04-01$111.61Not available in this settingRVU16B
2016-01-01$111.61Not available in this settingRVU16A
2015-10-01$113.62Not available in this settingRVU15D
2015-07-01$113.62Not available in this settingRVU15C
2015-04-01$113.05Not available in this settingRVU15B
2015-01-01$113.05Not available in this settingRVU15A
2014-10-01$112.52Not available in this settingRVU14D
2014-07-01$112.52Not available in this settingRVU14C
2014-04-01$112.52Not available in this settingRVU14B
2014-01-01$112.52Not available in this settingRVU14A
2013-10-01$112.14Not available in this settingRVU13D
2013-07-01$112.14Not available in this settingRVU13C
2013-04-01$112.14Not available in this settingRVU13B
2013-01-01$112.14Not available in this settingRVU13AR

Price 76511 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

76511 billing questions

When should 76511 be reported instead of 76510?

Use 76511 for quantitative A-scan alone. Report 76510 when both B-scan and quantitative A-scan are performed during the same encounter.

Can the professional and technical services be billed separately?

Yes. Modifier 26 identifies the interpretation, and modifier TC identifies the equipment and staff portion. Billing without either modifier represents the global service.

How is bilateral 76511 handled?

CMS pays each side separately at 100% when the study is performed bilaterally. Document which eye or eyes were examined.

How does 76511 differ from A-scan biometry?

76511 is a diagnostic quantitative A-scan without B-scan imaging. Use 76516 for A-scan biometry without intraocular lens power calculation, or 76519 when that calculation is included.

What documentation supports reporting 76511?

Record the diagnostic indication, eye examined, quantitative findings, and physician interpretation. Documentation should show that the service was a quantitative A-scan only.

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 76511PPRRVU2026_Oct_nonQPP.csv, line 8,709 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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