CPT code 27335: Knee synovectomy, anterior and posterior2026 Medicare rate & RVUs in Puerto Rico

In Puerto Rico, Medicare pays $721.35 for 27335 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 27335 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 27335 covers

An orthopedic surgeon removes diseased synovial lining from both the anterior and posterior regions of the knee through an open operation. This may be performed for substantial proliferative or chronically inflamed synovium, including synovial disease associated with inflammatory arthritis. The operative report should establish that the work involved both regions, rather than a single-sided synovectomy or diagnostic tissue sampling.

Choose this code when the documented open synovectomy includes anterior and posterior knee regions; removal confined to one region is represented by the related single-region code. The day-before preoperative visit and 90 days of related postoperative care are included in the 90-day global period. 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 surgery, modifier 50 is paid at 150%. Assistant-at-surgery services may be paid; co-surgeon payment requires supporting documentation, and team surgery is 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 Puerto Rico compares for 27335

Across 109 of 109 payment localities, the facility rate for 27335 runs from $641.02 in Arkansas to $877.77 in Alaska. Puerto Rico pays $721.35. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

27335 rates by state

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

See 27335 in every payment locality

How the 27335 rate is calculated

Each of 27335’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 27335

27335 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 27335

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

How 27335 has changed in Puerto Rico

Price 27335 for an earlier date of service

Where the Puerto Rico rate applies

Puerto Rico is a Medicare payment area, not a city. Our Census mapping connects it to 292 cities and communities in Puerto Rico. Some span more than one payment area; confirm with the service ZIP.

• Aceitunas
• Adjuntas
• Aguada
• Aguadilla
• Aguas Buenas
• Aguas Claras
• Aguilita
• Aibonito

Browse all communities in Puerto Rico

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