CPT code 66180: Glaucoma shunt, with graft2026 Medicare rate & RVUs in Connecticut

In Connecticut, Medicare pays $1,022.71 for 66180 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 66180 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 66180 covers

An ophthalmologist places a drainage tube into the eye and connects it to a reservoir positioned outside the eye to divert aqueous fluid and lower intraocular pressure. A graft covers the exposed tube. This operation is generally selected for glaucoma that needs a drainage implant, including cases in which other pressure-lowering treatment has not provided adequate control. It is commonly performed in a hospital outpatient department or ambulatory surgery center.

Report this code when the procedure includes both the aqueous shunt to an extraocular reservoir and the graft. The operative report should support the glaucoma indication, shunt placement, and graft use; a shunt placement without a graft is distinguished by 66179. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery, modifier 50 is paid at 150%. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are reduced to 50%. An assistant at surgery may be paid; 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 66180

Across 109 of 109 payment localities, the facility rate for 66180 runs from $889.23 in Arkansas to $1,226.20 in Alaska. Connecticut pays $1,022.71. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

66180 rates by state

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

See 66180 in every payment locality

How the 66180 rate is calculated

Each of 66180’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 66180

66180 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 66180

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

How 66180 has changed in Connecticut

Price 66180 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