No office rate
Both codes concern knee cyst removal. Choose using the exact cyst type, site, and operative work documented, rather than treating the descriptors as interchangeable.
On this page
CMS RVU26D · Effective 2026-10-01
27345 Knee cyst excision Medicare reimbursement rates in Connecticut
Reports operative removal of a popliteal or other synovial cyst at the knee, commonly for a symptomatic Baker cyst requiring surgical excision. Compare 27345 office and facility rates across CMS payment localities in Connecticut.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 27345 in Connecticut?
Connecticut has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$498.63
1 of 1 localities have a supported rate.
Payment area: Connecticut
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Orthopedic surgery
About 27345: Excision of popliteal knee cyst
Reports operative removal of a popliteal or other synovial cyst at the knee, commonly for a symptomatic Baker cyst requiring surgical excision.
CPT 27345 describes surgical excision of a popliteal or other synovial cyst of the knee. A typical case is removal of a symptomatic Baker cyst in the posterior knee by an orthopedic surgeon. The operative note should establish that the target is a cyst associated with the knee, identify its location, and describe the excision performed. This is distinct from removing a prepatellar bursa or excising a nonsynovial soft-tissue mass.
Report the code for the cyst excision, not merely for evaluation or diagnostic sampling. The record should support the cyst’s site and the operative work; use a different code when the procedure treats a different structure or lesion type. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. For bilateral surgery, modifier 50 is paid at 150%. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 27345
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU5.94 · 42%
- Practice expense (office) RVU6.82 · 49%
- Malpractice RVU1.26 · 9%
458
Medicare services in 2024 · #3638 by national volume
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.
27345 compared with similar codes
Office rates for Connecticut, from the same CMS release.
No office rate
Use 27340 when the surgeon removes the prepatellar bursa. Use 27345 for excision of a popliteal or other synovial knee cyst.
$577.48
This code concerns excision of a small superficial thigh or knee lesion. A documented popliteal or synovial cyst calls for the cyst-specific code instead.
No office rate
This code concerns a larger superficial thigh or knee lesion, not a popliteal or synovial cyst.
Compare 27345 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Connecticut →
Office / nonfacility
Unavailable
Facility
$498.63
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 27345 in Connecticut.
PPRRVU2026_Oct_nonQPP.csv
2,850
- Code
- 27345
- Physician work
- 5.94
- Practice expense
- 6.82
- Malpractice
- 1.26
GPCI2026.csv
38
- Locality
- Connecticut
- Physician work
- 1.020
- Practice expense
- 1.077
- Malpractice
- 1.210
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 5.94 | × 1.020 | 6.0588 |
| Practice expense | 6.82 | × 1.077 | 7.3451 |
| Malpractice | 1.26 | × 1.210 | 1.5246 |
| Total RVUs | 14.9285 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Connecticut$498.63
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 5.94 | 1.02 |
| Practice expense | 6.82 | 1.077 |
| Malpractice | 1.26 | 1.21 |
(5.94 × 1.02 + 6.82 × 1.077 + 1.26 × 1.21) × $33.4009 = $498.63
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
27345 billing questions
When is 27345 appropriate for a Baker cyst?
Use it when the surgeon excises a popliteal or other synovial cyst of the knee. The operative report should identify the cyst and its knee location.
How should 27345 be distinguished from 27347?
Both relate to knee cyst removal, but the code choice depends on the specific cyst and procedure described by the applicable code descriptor. Do not select between them from the word “cyst” alone; review the operative anatomy and work.
Is related postoperative care separately reported during the global period?
The day-before preoperative visit and 90 days of related postoperative care are included in the 90-day global period.
How is bilateral excision reported?
Report bilateral surgery with modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation, and team surgery is not permitted.
What happens when another procedure is performed in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50%.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
2,84727337,,Exc thigh/knee les sc 3 cm/>,A,,5.76,5.07,NA,5.07,,1.39,12.22,12.22,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,84827339,,Exc thigh/knee tum dep 5cm/>,A,,10.85,8.02,NA,8.02,,2.52,21.39,21.39,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,84927340,,Removal of kneecap bursa,A,,4.21,5.98,NA,5.98,,0.88,11.07,11.07,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,85027345,,Removal of knee cyst,A,,5.94,6.82,NA,6.82,,1.26,14.02,14.02,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,85127347,,Remove knee cyst,A,,6.56,7.31,NA,7.31,,1.34,15.21,15.21,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,85227350,,Removal of kneecap,A,,8.44,8.37,NA,8.37,,1.76,18.57,18.57,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,85327355,,Remove femur lesion,A,,7.80,7.85,NA,7.85,,1.64,17.29,17.29,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3501112,CA,70,YUBA CITY,1.017,1.096,0.536
3601112,CA,75,REST OF CALIFORNIA,1.017,1.096,0.536
3704112,CO,01,COLORADO,1.012,1.064,0.781
3813102,CT,00,CONNECTICUT,1.020,1.077,1.210
3912202,DC,01,DC + MD/VA SUBURBS,1.054,1.178,1.113
4012102,DE,01,DELAWARE,1.005,0.988,0.899
4109102,FL,03,FORT LAUDERDALE,1.000,1.013,1.808