Billing code 66030: Eye injectionMedicare rate & RVUs in Illinois
Reports a therapeutic medication injection into the eye’s anterior chamber when treatment is delivered by that route rather than into another ocular compartment.
Medicare pays $166.96–$182.85 for 66030 in the office in Illinois, from Rest Of Illinois to Suburban Chicago. 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.
On this page 9 sections
What 66030 covers
An ophthalmologist typically performs this procedure by placing a therapeutic medication into the anterior chamber, the fluid-filled space between the cornea and iris. It may be performed in an office or facility when the treatment is intended for that chamber; the selected code depends on the injection site and material, not simply on the fact that an eye injection occurred. This differs from an injection of air or liquid and from medication delivered into the vitreous or another tissue plane.
Report the service for the treated eye and document the medication, anterior chamber route, clinical indication, and laterality. CMS assigns a 10-day global period, so related postoperative visits during that period are included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. For bilateral reporting with modifier 50, payment is 150%. Assistant-at-surgery payment is restricted, and co-surgeons and team surgery are not permitted.
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 66030 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
$166.96 to $182.85
| Payment locality | Office | Facility |
|---|---|---|
| Chicago | $181.54 | $101.98 |
| East St. Louis | $169.24 | $96.41 |
| Rest Of Illinois | $166.96 | $94.69 |
| Suburban Chicago | $182.85 | $101.56 |
How the 66030 rate is calculated
Each of 66030’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 · 66030
RVUs × geographic indexes × conversion factor
Work1.27
1.27 RVUs× 1.000 GPCI
Practice expense3.93
3.93 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
5.2900
Conversion factor
$33.4009
Medicare rate
$176.69
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 66030
66030 has a 10-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 66030
Eye injection
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 010 | Minor procedure: the day of the procedure plus 10 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.80/0.10 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 66030
Eye injection
10-day global period ends
Oct 11, 2026
Covers Oct 1, 2026 through Oct 11, 2026 (11 days).
Visit on Oct 31, 2026
After the global period ends: visits and procedures are billed normally.
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
66030 without 50 · national office
$176.69
Eye injection
66030-50 · Bilateral: 150%
$265.04
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
66030 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 66020Eye injection
- Both involve the anterior chamber, but 66030 is for therapeutic medication and 66020 is for air or liquid.
- 67028Intravitreal injection
- Use 66030 for medication placed in the anterior chamber; use 67028 when the injection is into the vitreous.
- 67515Eye injection
- 67515 identifies a subconjunctival injection. It is not the correct code when medication is placed in the anterior chamber.
66030 billing questions
How is 66030 different from 66020?
66030 is for therapeutic medication placed in the anterior chamber. 66020 is the related code for injection of air or liquid into that chamber.
Can 66030 be used for an intravitreal injection?
No. 66030 identifies the anterior chamber route; 67028 is used when medication is injected into the vitreous.
What documentation supports 66030?
Document the therapeutic purpose, medication administered, anterior chamber injection route, and the eye treated.
Are related postoperative visits separately reportable during the global period?
Related postoperative visits during the 10-day global period are included in the procedure payment.
How is a bilateral service reported under the CMS payment rule?
For bilateral reporting with modifier 50, CMS pays 150%.
Can an assistant surgeon or surgical team be paid for 66030?
Assistant-at-surgery payment is restricted; co-surgeons and team surgery are not permitted.
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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