CPT code 92283: Color vision exam, extended testing2026 Medicare rate & RVUs in Illinois
Report 92283 for extended testing of color discrimination, with interpretation and report, when a focused color-vision assessment is needed beyond screening plates.
Medicare pays $51.24–$56.98 for 92283 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 92283 covers
An extended color vision examination evaluates how a patient distinguishes colors using methods such as hue-arrangement testing or an anomaloscope. Ophthalmologists and optometrists may use it to characterize a suspected color-vision deficiency or investigate acquired color-perception changes, including in an ophthalmology or optometry office. The extended testing provides more detail than a basic color-plate examination.
Choose 92283 when the service includes extended testing and interpretation, rather than a simpler color vision examination. Documentation should identify the test method, findings, clinical interpretation, and reason for testing. The code has separately priced professional and technical components: modifier 26 identifies interpretation, modifier TC identifies equipment and staff, and no modifier represents the global service. The ophthalmology diagnostic multiple procedure reduction applies to the technical component. The code is priced as bilateral, so modifier 50 does not increase payment.
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 92283 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
$51.24 to $56.98
| Payment locality | Office | Facility |
|---|---|---|
| Chicago, IL | $56.26 | Unavailable |
| East St. Louis, IL | $51.89 | Unavailable |
| Rest of Illinois | $51.24 | Unavailable |
| Suburban Chicago, IL | $56.98 | Unavailable |
How the 92283 rate is calculated
Each of 92283’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 · 92283
RVUs × geographic indexes × conversion factor
Work0.17
0.17 RVUs× 1.000 GPCI
Practice expense1.46
1.46 RVUs× 1.000 GPCI
Malpractice0.02
0.02 RVUs× 1.000 GPCI
Adjusted RVUs
1.6500
Conversion factor
$33.4009
Medicare rate
$55.11
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 92283
The CMS indicators that decide how 92283 is paid alongside other services.
CMS payment indicators · 92283
Color vision exam, extended 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
92283 without 26 · national office
$55.11
Color vision exam, extended testing
92283-26 · Professional component
$8.68
Pays only the interpretation and report.
92283 compared with similar codes
Compare codes · National
92283 vs 92284 vs 92273: Medicare rates
How to choose
- 92284Dark adaptationDiagnostic examination
- 92284 assesses dark adaptation. It evaluates a different visual function from color discrimination testing reported with 92283.
- 92273Full-field ERGWith interpretation and report
- 92273 measures retinal electrical responses with a full-field electroretinogram; 92283 evaluates color discrimination.
92283 billing questions
How is 92283 different from 92282?
92283 represents extended color vision testing. Use 92282 for a color vision examination that does not involve the extended testing represented by 92283.
Can the professional and technical components be billed separately?
Yes. Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical service. Without either modifier, the claim represents the global service.
Does modifier 50 increase payment for 92283?
No. CMS prices 92283 as bilateral, and modifier 50 does not increase payment.
When does the multiple procedure reduction apply?
The ophthalmology diagnostic multiple procedure reduction applies to the technical component of 92283.
What documentation supports reporting 92283?
Record the extended color vision method performed, the results, the interpretation, and the clinical reason for the examination.
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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