CPT code 61107: Ventricular catheter, twist-drill access2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $287.45 for 61107 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 61107 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 61107 covers

This service involves making a small twist-drill opening in the skull and placing a ventricular catheter through it to provide drainage. Neurosurgeons commonly use it for temporary cerebrospinal-fluid diversion or pressure management, such as acute hydrocephalus or ventricular blood obstructing normal CSF flow. It is generally performed in a hospital or other facility setting, with catheter drainage often managed in an intensive care or neurosurgical unit.

Report 61107 when the documented access is twist-drill and the procedure includes placement of a ventricular drainage catheter. Select a subdural drainage or hematoma-evacuation code when that is the procedure instead; a burr-hole approach has different code selection. The operative note should identify the opening technique, ventricular target, catheter placement, and drainage purpose. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service; 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 Montana compares for 61107

Across 109 of 109 payment localities, the facility rate for 61107 runs from $238.05 in Wisconsin to $394.09 in Miami, FL. Montana pays $287.45. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

61107 rates by state

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

See 61107 in every payment locality

How the 61107 rate is calculated

Each of 61107’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 61107

The CMS indicators that decide how 61107 is paid alongside other services.

Codes related to 61107

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

How 61107 has changed in Montana

Price 61107 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

• Absarokee
• Acton
• Alberton
• Alder
• Alzada
• Amsterdam
• Anaconda-Deer Lodge County
• Antelope

Browse all communities in Montana

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