No office rate
Choose 62161 for endoscopic dissection of adhesions or cyst fenestration or wall resection. Choose 62162 when the endoscopic procedure excises a colloid cyst.
On this page
CMS RVU26D · Effective 2026-10-01
62161 Brain neuroendoscopy Medicare reimbursement rates in Illinois
Reports intracranial endoscopic dissection of adhesions or fenestration or resection of a cyst wall during neurosurgical treatment of a brain cyst. Compare 62161 office and facility rates across CMS payment localities in Illinois.
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 62161 in Illinois?
Illinois has 4 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 4 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1619.70–$1883.88
4 of 4 localities have a supported rate.
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.
Where 62161 pays more and less in Illinois
Neurosurgery
About 62161: Intracranial endoscopic cyst fenestration
Reports intracranial endoscopic dissection of adhesions or fenestration or resection of a cyst wall during neurosurgical treatment of a brain cyst.
A neurosurgeon uses an endoscope within the cranial cavity to separate intracranial adhesions or open a cyst by fenestrating or removing part of its wall. A typical use is endoscopic treatment of an intracranial cyst, such as an arachnoid cyst, to establish communication with a neighboring cerebrospinal fluid space. The procedure is generally performed in an operating room, often through a burr hole or another planned cranial access route.
Report 62161 when the operative work is endoscopic dissection of adhesions or cyst fenestration or wall resection; the operative report should identify the target and describe the endoscopic maneuver. Distinguish this work from excision of a colloid cyst or brain tumor, which has separate codes. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. 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% multiple-procedure reduction. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation. Team surgery is not permitted.
CMS billing rules for 62161
- 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 adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- 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 RVU20.70 · 46%
- Practice expense (office) RVU15.65 · 35%
- Malpractice RVU8.64 · 19%
120
Medicare services in 2024 · #4740 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.
62161 compared with similar codes
Office rates for Illinois, from the same CMS release.
No office rate
62164 describes endoscopic removal of a brain tumor; 62161 describes endoscopic work on adhesions or a cyst.
No office rate
62165 is for endoscopic pituitary tumor removal. A cyst or adhesion procedure elsewhere in the intracranial space is not coded as pituitary tumor removal.
Compare 62161 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.
4 of 4 payment localities
Chicago →
Office / nonfacility
Unavailable
Facility
$1883.88
East St. Louis →
Office / nonfacility
Unavailable
Facility
$1753.51
Rest Of Illinois →
Office / nonfacility
Unavailable
Facility
$1619.70
Suburban Chicago →
Office / nonfacility
Unavailable
Facility
$1744.45
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62161 billing questions
When should 62161 be chosen over 62162?
Use 62161 for endoscopic dissection of adhesions or fenestration or resection of a cyst wall. Use 62162 for endoscopic excision of a colloid cyst.
Does 62161 describe tumor removal?
No. Endoscopic removal of a brain tumor is represented by a different code, such as 62164; pituitary tumor removal has its own code, 62165.
What documentation supports 62161?
The operative report should identify the intracranial cyst or adhesions and document the endoscopic dissection, fenestration, or cyst-wall resection performed.
How does the 90-day global period affect billing?
The day-before preoperative visit and 90 days of related postoperative care are included in the surgical global period.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction when performed in the same session.
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.
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.
6,92162147,,Crnop w/autograft>5 cm diam,A,,20.15,12.79,NA,12.79,,7.85,40.79,40.79,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92262148,,Retr bone flap to fix skull,A,,1.95,0.68,NA,0.68,,0.82,3.45,3.45,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92362160,,Neuroendoscopy add-on,A,,2.93,1.02,NA,1.02,,1.21,5.16,5.16,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92462161,,Dissect brain w/scope,A,,20.70,15.65,NA,15.65,,8.64,44.99,44.99,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92562162,,Remove colloid cyst w/scope,A,,26.13,18.31,NA,18.31,,11.05,55.49,55.49,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92662164,,Remove brain tumor w/scope,A,,28.69,20.85,NA,20.85,,12.13,61.67,61.67,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,92762165,,Remove pituit tumor w/scope,A,,22.65,12.66,NA,12.66,,6.62,41.93,41.93,0,090,0.11,0.76,0.13,2,0,0,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00