CPT code 92083: Visual field exam, extended visual field testing2026 Medicare rate & RVUs in Illinois
Extended visual field testing uses quantitative threshold perimetry or qualifying kinetic mapping to assess glaucoma, neuro-ophthalmic disease, or hydroxychloroquine toxicity.
Medicare pays $60.10–$65.69 for 92083 in the office in Illinois, from Rest of Illinois to Suburban Chicago, IL. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 92083 covers
Extended visual field testing maps peripheral and central sensitivity with automated quantitative threshold perimetry, commonly on Humphrey or Octopus equipment using 24-2, 30-2, or 10-2 patterns. Qualifying Goldmann kinetic testing plots at least three isopters and checks static points within the central 30 degrees. A technician administers the test in an eye clinic or hospital outpatient department; an ophthalmologist or optometrist interprets reliability, defect patterns, and changes from prior fields. Common indications include glaucoma surveillance, optic neuropathy, chiasmal lesions, and hydroxychloroquine toxicity monitoring.
Select 92083 for a documented extended strategy rather than intermediate suprathreshold testing or limited screening. Record the strategy, eye or eyes tested, reliability, results, and clinical interpretation. Report one unit whether one or both eyes are tested: CMS prices the code as bilateral, and modifier 50 does not increase payment. Modifier 26 identifies interpretation only; modifier TC identifies equipment and staff only. Bill without a component modifier when both portions are provided. When performed with other eligible ophthalmic diagnostic tests, the ophthalmology diagnostic multiple procedure reduction affects eligible technical components.
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.
Where 92083 pays more and less in Illinois
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
4 payment localities
$60.10 to $65.69
| Payment locality | Office | Facility |
|---|---|---|
| Chicago, IL | $65.01 | Unavailable |
| East St. Louis, IL | $60.73 | Unavailable |
| Rest of Illinois | $60.10 | Unavailable |
| Suburban Chicago, IL | $65.69 | Unavailable |
How the 92083 rate is calculated
Each of 92083’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 · 92083
RVUs × geographic indexes × conversion factor
Work0.49
0.49 RVUs× 1.000 GPCI
Practice expense1.40
1.40 RVUs× 1.000 GPCI
Malpractice0.02
0.02 RVUs× 1.000 GPCI
Adjusted RVUs
1.9100
Conversion factor
$33.4009
Medicare rate
$63.80
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 92083
The CMS indicators that decide how 92083 is paid alongside other services.
CMS payment indicators · 92083
Visual field exam, extended visual field testing
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 7 | Diagnostic ophthalmology reduction applies to the technical component. |
| Bilateral (modifier 50) | 2 | Already bilateral by definition: paid once at 100%. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
92083 without 26 · national office
$63.80
Visual field exam, extended visual field testing
92083-26 · Professional component
$26.39
Pays only the interpretation and report.
92083 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 92082Visual field testIntermediate level
- Report 92082 for an intermediate strategy, such as automated suprathreshold testing or Goldmann mapping with two isopters and central static testing. Quantitative threshold programs or qualifying three-isopter mapping support 92083.
- 92081Visual field testLimited examination
- Report 92081 for limited methods such as a tangent screen, arc perimeter, or single-intensity screening. Quantitative threshold testing is an extended method reported with 92083.
- 92014Comprehensive eye examEstablished patient
- Code 92014 reports a comprehensive eye examination, which may include routine field assessment. Separately performed, medically necessary extended perimetry is a diagnostic test reported with 92083.
92083 billing questions
How is this code distinguished from 92082 and 92081?
The level depends on the testing strategy, not the time spent. Quantitative threshold programs, or Goldmann mapping with at least three isopters and central static testing, support 92083. Suprathreshold testing or qualifying two-isopter mapping supports 92082; limited methods support 92081.
Should modifier 50 be added when both eyes are tested?
Report one unit whether one or both eyes are tested. CMS already prices 92083 as bilateral, so modifier 50 does not increase payment.
When are modifiers 26 and TC used?
Use modifier 26 when billing only the interpretation, such as reading fields performed in a hospital outpatient department. Use modifier TC when billing only the equipment and technician portion. A practice billing both portions reports the code without either component modifier.
Can it be billed on the same day as an eye exam or OCT?
Yes, when the extended field test is performed, medically necessary, and documented. It may accompany an ophthalmic exam or optic nerve imaging; the ophthalmology diagnostic multiple procedure reduction affects eligible technical components of same-day diagnostic tests.
What documentation supports the interpretation?
A signed interpretation should identify the test strategy, eyes tested, reliability, findings, and comparison with prior fields when available. A test printout alone does not support billing the professional component.
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
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