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CPT code 92020: Gonioscopy2026 Medicare rate & RVUs in Houston, TX

Gonioscopy uses a contact lens to examine the anterior chamber angle when assessing glaucoma, suspected angle closure, or injury to the drainage angle.

CMS RVU26DEffective Oct 1, 2026One payment locality706.7K Medicare services in 2024

In Houston, TX, Medicare pays $26.84 for 92020 in the office and $16.56 when it’s performed in a hospital or facility.

$26.84Office (non-facility)
$16.56Hospital or facility
+0.4%vs the national office rate ($26.72)

Check a contract rate as a % of Medicare · 92020 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 92020 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Houston, TX
  2. What 92020 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 92020 covers

Gonioscopy lets the examiner see the drainage angle where the iris meets the cornea, which cannot be viewed directly during a routine slit-lamp examination. An ophthalmologist or optometrist typically places a goniolens on the eye after topical anesthesia and assesses angle width and features such as trabecular pigmentation, peripheral anterior synechiae, neovascularization, or angle recession. Common indications include glaucoma evaluation, narrow angles, pigment dispersion, and blunt ocular trauma. The examination is often performed in an office or outpatient eye clinic.

Report gonioscopy in addition to an eye exam or E/M visit when a diagnostic angle examination is medically necessary and performed. Documentation should identify the indication, eye or eyes examined, angle findings, and clinical interpretation; an angle grade and findings by quadrant can add useful detail. CMS prices 92020 as bilateral, so report one unit for examination of one or both eyes; modifier 50 does not increase payment. Viewing the angle solely to guide laser trabeculoplasty is part of that procedure, not a separate diagnostic gonioscopy.

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 Houston, TX compares for 92020

Across 109 of 109 payment localities, the office rate for 92020 runs from $24.53 in Arkansas to $34.24 in San Benito County, CA. Houston, TX pays $26.84. The RVUs are the same everywhere; the geographic indexes change the dollars.

92020 in Houston, TX vs other payment areas
  1. Houston, TX · this page$26.84
  2. Austin, TX · Texas$27.54+$0.70
  3. Beaumont, TX · Texas$25.40−$1.44
  4. Brazoria, TX · Texas$26.61−$0.23
  5. Dallas, TX · Texas$26.72−$0.12
  6. Fort Worth, TX · Texas$26.58−$0.26
  7. Galveston, TX · Texas$26.66−$0.18

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

Every other payment area

92020 in every other Medicare payment locality
Payment localityOfficeFacility
Rest of TexasTexas$25.96$16.13
Los Angeles, CACalifornia$29.73$17.48
Washington, DC areaDistrict of Columbia$29.96$17.77
Miami, FLFlorida$27.82$17.04
Chicago, ILIllinois$27.31$16.90
Manhattan, NYNew York$30.01$17.98
AlaskaAlaska$33.52$22.49
AlabamaAlabama$24.78$15.72

92020 rates by state

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

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$24.53

$33.52

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

View every state and territory as a table
92020 office rate range by state
State / territoryOffice rate rangeLocalities
AK$33.521
AL$24.781
AR$24.531
AZ$26.231
CA$28.15–$34.2429
CO$27.711
CT$28.141
DC$29.961
DE$26.571
FL$26.26–$27.823
GA$25.23–$27.052
GU$28.551
HI$28.551
IA$25.301
ID$25.401
IL$25.66–$27.454
IN$25.501
KS$25.181
KY$25.101
LA$25.06–$25.922
MA$27.61–$29.962
MD$26.99–$29.963
ME$25.45–$26.472
MI$25.51–$26.452
MN$26.901
MO$24.73–$26.033
MS$24.641
MT$26.721
NC$25.641
ND$26.521
NE$25.411
NH$27.271
NJ$28.56–$29.802
NM$25.601
NV$26.681
NY$25.90–$30.495
OH$25.471
OK$25.111
OR$26.56–$28.422
PA$25.52–$27.592
PR$26.871
RI$27.391
SC$25.581
SD$26.501
TN$25.261
TX$25.40–$27.548
UT$25.821
VA$26.38–$29.962
VI$26.871
VT$26.411
WA$27.56–$30.522
WI$25.891
WV$24.981
WY$26.631

See 92020 in every payment locality

How the 92020 rate is calculated

Each of 92020’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 · 92020

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.36

0.36 RVUs× 1.000 GPCI

Practice expense0.43

0.43 RVUs× 1.000 GPCI

Malpractice0.01

0.01 RVUs× 1.000 GPCI

Adjusted RVUs

0.8000

Conversion factor

$33.4009

Medicare rate

$26.72

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

The exact Houston, TX inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

11,666

Code
92020
Physician work
0.36
Practice expense
0.43
Malpractice
0.01

GPCI2026.csv

102

Locality
Houston, TX
Physician work
1.008
Practice expense
0.993
Malpractice
1.376
Office calculation for 92020 in Houston, TX
ComponentRVULocality factorAdjusted
Physician work0.36× 1.0080.3629
Practice expense0.43× 0.9930.4270
Malpractice0.01× 1.3760.0138
Total RVUs0.8036
Conversion factor× 33.4009

Office rate, Houston, TX$26.84

Office: (0.36 × 1.008 + 0.43 × 0.993 + 0.01 × 1.376) × $33.4009 = $26.84

Facility: (0.36 × 1.008 + 0.12 × 0.993 + 0.01 × 1.376) × $33.4009 = $16.56

Open 92020 in the RVU calculator

Payment rules and modifiers for 92020

The CMS indicators that decide how 92020 is paid alongside other services.

CMS payment indicators · 92020

Gonioscopy

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)2Already bilateral by definition: paid once at 100%.
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.

Codes related to 92020

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

Codes related to 92020
CodeHow it relatesOffice range, Houston, TX
Often billed with
92014Comprehensive eye exam, established patientComprehensive established-patient eye exam may accompany medically necessary gonioscopy at a glaucoma visit.$127.59
92012Eye exam, intermediate, established patientIntermediate established-patient eye exam may accompany gonioscopy during glaucoma follow-up.$90.73
92004Comprehensive eye exam, new patient, one or more visitsComprehensive new-patient eye exam may accompany gonioscopy during a glaucoma workup.$150.01
92083Visual field exam, extended visual field testingExtended visual field testing may accompany gonioscopy during a glaucoma evaluation.$63.85
92133Optic nerve OCT, posterior segment, optic nerveOptic nerve OCT imaging may be obtained alongside gonioscopy for glaucoma assessment.$30.92
76514Corneal pachymetry, ultrasonic thickness measurementCorneal thickness measurement may accompany gonioscopy in a baseline glaucoma workup.$11.93

How 92020 has changed in Houston, TX

92020 · Office / nonfacility

$26.84

Effective 2026-10-01

The base rate is $0.30 higher than on 2025-10-01, moving from $26.54 to $26.84 (1.1%).

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

    $26.54changed to$26.84

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.37 changed to 0.36
    • Work GPCI 1.014 changed to 1.008
    • Practice expense GPCI 1.003 changed to 0.993
    • Malpractice GPCI 1.409 changed to 1.376

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $27.65changed to$26.54

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.44 changed to 0.43

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $27.20changed to$27.65

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $28.37changed to$27.20

    • Conversion factor 33.8872 changed to 32.7442
    • Work GPCI 1.023 changed to 1.014
    • Practice expense GPCI 1.016 changed to 1.003
    • Malpractice GPCI 1.154 changed to 1.409

  5. January 1, 2023

    RVU23A

    $29.19changed to$28.37

    • Conversion factor 34.6062 changed to 33.8872
    • Work GPCI 1.032 changed to 1.023
    • Practice expense GPCI 1.029 changed to 1.016
    • Malpractice GPCI 0.900 changed to 1.154

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $29.08changed to$29.19

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.43 changed to 0.44

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $28.76changed to$29.08

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.40 changed to 0.43
    • Work GPCI 1.026 changed to 1.032
    • Practice expense GPCI 1.020 changed to 1.029
    • Malpractice GPCI 0.918 changed to 0.900

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $28.53changed to$28.76

    • Conversion factor 36.0391 changed to 36.0896
    • Work GPCI 1.020 changed to 1.026
    • Practice expense GPCI 1.012 changed to 1.020
    • Malpractice GPCI 0.936 changed to 0.918

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $27.77changed to$28.53

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.38 changed to 0.40

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $27.64changed to$27.77

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense GPCI 1.009 changed to 1.012
    • Malpractice GPCI 0.946 changed to 0.936

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $27.17changed to$27.64

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.37 changed to 0.38
    • Work GPCI 1.019 changed to 1.020
    • Practice expense GPCI 1.006 changed to 1.009
    • Malpractice GPCI 0.955 changed to 0.946

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $27.27changed to$27.17

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $27.13changed to$27.27

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $28.12changed to$27.13

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 0.38 changed to 0.37
    • Malpractice RVU 0.03 changed to 0.01
    • Work GPCI 1.014 changed to 1.019
    • Practice expense GPCI 1.004 changed to 1.006
    • Malpractice GPCI 0.939 changed to 0.955

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $27.62changed to$28.12

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 0.41 changed to 0.38
    • Work GPCI 1.009 changed to 1.014
    • Practice expense GPCI 1.002 changed to 1.004
    • Malpractice GPCI 0.923 changed to 0.939

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $27.62

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$26.84$16.56RVU26D
2026-07-01$26.84$16.56RVU26C
2026-04-01$26.84$16.56RVU26B
2026-01-01$26.84$16.56RVU26A
2025-10-01$26.54$19.73RVU25D
2025-07-01$26.54$19.73RVU25C
2025-04-01$26.54$19.73RVU25B
2025-01-01$26.54$19.73RVU25A
2024-10-01$27.65$20.30RVU24D
2024-07-01$27.65$20.30RVU24C
2024-04-01$27.65$20.30RVU24B
2024-03-09$27.65$20.30RVU24AR
2024-01-01$27.20$19.97RVU24A
2023-10-01$28.37$20.79RVU23D
2023-07-01$28.37$20.79RVU23C
2023-04-01$28.37$20.79RVU23B
2023-01-01$28.37$20.79RVU23A
2022-10-01$29.19$21.00RVU22D
2022-07-01$29.19$21.00RVU22C
2022-04-01$29.19$21.00RVU22B
2022-01-01$29.19$21.00RVU22A
2021-10-01$29.08$21.18RVU21D
2021-07-01$29.08$21.18RVU21C
2021-04-01$29.08$21.18RVU21B
2021-01-01$29.08$21.18RVU21A
2020-10-01$28.76$21.76RVU20D
2020-07-01$28.76$21.76RVU20C
2020-04-01$28.76$21.76RVU20B
2020-01-01$28.76$21.76RVU20A
2019-10-01$28.53$21.96RVU19D
2019-07-01$28.53$21.96RVU19C
2019-04-01$28.53$21.96RVU19B
2019-01-01$28.53$21.96RVU19A
2018-10-01$27.77$21.94RVU18D
2018-07-01$27.77$21.94RVU18C
2018-04-01$27.77$21.94RVU18B
2018-01-01$27.77$21.94RVU18AR1
2017-10-01$27.64$21.85RVU17D
2017-07-01$27.64$21.85RVU17C
2017-04-01$27.64$21.85RVU17B
2017-01-01$27.64$21.85RVU17A
2016-10-01$27.17$21.41RVU16D
2016-07-01$27.17$21.41RVU16C
2016-04-01$27.17$21.41RVU16B
2016-01-01$27.17$21.41RVU16A
2015-10-01$27.27$21.48RVU15D
2015-07-01$27.27$21.48RVU15C
2015-04-01$27.13$21.38RVU15B
2015-01-01$27.13$21.38RVU15A
2014-10-01$28.12$22.36RVU14D
2014-07-01$28.12$22.36RVU14C
2014-04-01$28.12$22.36RVU14B
2014-01-01$28.12$22.36RVU14A
2013-10-01$27.62$21.48RVU13D
2013-07-01$27.62$21.48RVU13C
2013-04-01$27.62$21.48RVU13B
2013-01-01$27.62$21.48RVU13AR

Price 92020 for an earlier date of service

Where the Houston, TX rate applies

Houston, TX is a Medicare payment area, not a city. Our Census mapping connects it to 46 cities and communities in Texas. Some span more than one payment area; confirm with the service ZIP.

Browse all communities in Texas

92020 billing questions

Should gonioscopy be billed twice or with modifier 50 when both eyes are examined?

No. CMS already prices 92020 as bilateral. Report one unit for examination of one or both eyes; modifier 50 does not increase payment.

Is gonioscopy included in a comprehensive or intermediate eye exam?

The routine examination reported with 92004, 92014, 92002, or 92012 is different from a diagnostic angle examination with a goniolens. Report 92020 separately when the gonioscopy is medically necessary, performed, and documented.

Can gonioscopy be billed on the same day as laser trabeculoplasty or iridotomy?

Using a goniolens solely to guide the laser treatment is part of that procedure, not a separately billable gonioscopy. A distinct diagnostic angle examination requires its own medical necessity and findings.

What documentation supports gonioscopy?

Record the indication, eye or eyes examined, angle findings, and clinical interpretation. An angle grade and details such as synechiae, pigment, or neovascularization help describe the findings.

Which conditions commonly prompt diagnostic gonioscopy?

Examples include suspected or established glaucoma, narrow or potentially occludable angles, pigment dispersion, neovascular glaucoma, and suspected angle recession after trauma. The documented reason for examining the angle should support the service.

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 92020PPRRVU2026_Oct_nonQPP.csv, line 11,666 (RVU26D)
Geographic factors for Houston, TXGPCI2026.csv, line 102 (RVU26D)

Open CMS sourceHow we calculate rates

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