CPT code 66600: Iris surgery, lesion removal2026 Medicare rate & RVUs in Connecticut

In Connecticut, Medicare pays $836.91 for 66600 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 66600 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 66600 covers

An ophthalmologist performs this operation to excise an iris lesion, such as a suspected tumor, together with the involved iris tissue. It is generally performed in an operating-room setting, with the operative approach guided by the lesion’s location and the tissue that must be removed. The excised tissue may be submitted for pathologic examination.

Report 66600 when the operation removes an iris lesion, rather than for an iridectomy performed for another purpose, such as glaucoma treatment. The operative report should identify the lesion, its location, and the excision performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment is restricted; 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.

How Connecticut compares for 66600

Across 109 of 109 payment localities, the facility rate for 66600 runs from $717.10 in Arkansas to $1,007.65 in San Benito County, CA. Connecticut pays $836.91. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

66600 rates by state

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

See 66600 in every payment locality

How the 66600 rate is calculated

Each of 66600’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.

Payment rules and modifiers for 66600

66600 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 50

Codes related to 66600

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

How 66600 has changed in Connecticut

Price 66600 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

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

Open CMS sourceHow we calculate rates