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

Twist-drill ventricular catheter placement for temporary intracranial drainage, reported when a catheter is implanted through a small cranial opening to drain a ventricle.

CMS RVU26DEffective Oct 1, 2026One payment locality2K Medicare services in 2024

In Connecticut, Medicare pays $309.52 for 61107 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$309.52Hospital or facility

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.

We’ll open 61107 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 61107 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

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 Connecticut 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. Connecticut pays $309.52. The RVUs are the same everywhere; the geographic indexes change the dollars.

61107 in Connecticut vs other payment areas
  1. Connecticut · this page$309.52
  2. Los Angeles, CA · California$281.75−$27.77
  3. Washington, DC area · District of Columbia$314.17+$4.65
  4. Miami, FL · Florida$394.09+$84.57
  5. Chicago, IL · Illinois$377.24+$67.72
  6. Manhattan, NY · New York$347.12+$37.60
  7. Alaska · Alaska$342.01+$32.49

Other areas in Connecticut first, then benchmark localities. Bars start at $0.

Every other payment area

61107 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$250.91
ArkansasArkansas—$246.53
ArizonaArizona—$276.01
Bakersfield, CACalifornia—$269.48
Chico, CACalifornia—$264.18
El Centro, CACalifornia—$264.52
Fresno, CACalifornia—$264.18
Hanford, CACalifornia—$264.18

61107 rates by state

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

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
61107 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

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.

How the rate is built · 61107

RVUs × geographic indexes × conversion factor

Office or facility?

Work4.87

4.87 RVUs× 1.000 GPCI

Practice expense1.70

1.70 RVUs× 1.000 GPCI

Malpractice2.04

2.04 RVUs× 1.000 GPCI

Adjusted RVUs

8.6100

Conversion factor

$33.4009

Medicare rate

$287.58

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,744

Code
61107
Physician work
4.87
Practice expense
1.70
Malpractice
2.04

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Facility calculation for 61107 in Connecticut
ComponentRVULocality factorAdjusted
Physician work4.87× 1.0204.9674
Practice expense1.70× 1.0771.8309
Malpractice2.04× 1.2102.4684
Total RVUs9.2667
Conversion factor× 33.4009

Facility rate, Connecticut$309.52

Facility: (4.87 × 1.02 + 1.7 × 1.077 + 2.04 × 1.21) × $33.4009 = $309.52

Open 61107 in the RVU calculator

Payment rules and modifiers for 61107

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

CMS payment indicators · 61107

Ventricular catheter, twist-drill access

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

How 61107 has changed in Connecticut

61107 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$309.52RVU26D
2026-07-01Not available in this setting$309.52RVU26C
2026-04-01Not available in this setting$309.52RVU26B
2026-01-01Not available in this setting$309.52RVU26A
2025-10-01Not available in this setting$329.58RVU25D
2025-07-01Not available in this setting$329.58RVU25C
2025-04-01Not available in this setting$329.58RVU25B
2025-01-01Not available in this setting$329.58RVU25A
2024-10-01Not available in this setting$338.16RVU24D
2024-07-01Not available in this setting$338.16RVU24C
2024-04-01Not available in this setting$338.16RVU24B
2024-03-09Not available in this setting$338.16RVU24AR
2024-01-01Not available in this setting$332.64RVU24A
2023-10-01Not available in this setting$334.85RVU23D
2023-07-01Not available in this setting$334.85RVU23C
2023-04-01Not available in this setting$334.85RVU23B
2023-01-01Not available in this setting$334.85RVU23A
2022-10-01Not available in this setting$330.56RVU22D
2022-07-01Not available in this setting$330.56RVU22C
2022-04-01Not available in this setting$330.56RVU22B
2022-01-01Not available in this setting$330.56RVU22A
2021-10-01Not available in this setting$332.39RVU21D
2021-07-01Not available in this setting$332.39RVU21C
2021-04-01Not available in this setting$332.39RVU21B
2021-01-01Not available in this setting$332.39RVU21A
2020-10-01Not available in this setting$348.36RVU20D
2020-07-01Not available in this setting$348.36RVU20C
2020-04-01Not available in this setting$348.36RVU20B
2020-01-01Not available in this setting$348.36RVU20A
2019-10-01Not available in this setting$362.33RVU19D
2019-07-01Not available in this setting$362.33RVU19C
2019-04-01Not available in this setting$362.33RVU19B
2019-01-01Not available in this setting$362.33RVU19A
2018-10-01Not available in this setting$362.28RVU18D
2018-07-01Not available in this setting$362.28RVU18C
2018-04-01Not available in this setting$362.28RVU18B
2018-01-01Not available in this setting$362.28RVU18AR1
2017-10-01Not available in this setting$363.76RVU17D
2017-07-01Not available in this setting$363.76RVU17C
2017-04-01Not available in this setting$363.76RVU17B
2017-01-01Not available in this setting$363.76RVU17A
2016-10-01Not available in this setting$364.69RVU16D
2016-07-01Not available in this setting$364.69RVU16C
2016-04-01Not available in this setting$364.69RVU16B
2016-01-01Not available in this setting$364.69RVU16A
2015-10-01Not available in this setting$367.34RVU15D
2015-07-01Not available in this setting$367.34RVU15C
2015-04-01Not available in this setting$365.51RVU15B
2015-01-01Not available in this setting$365.51RVU15A
2014-10-01Not available in this setting$352.14RVU14D
2014-07-01Not available in this setting$352.14RVU14C
2014-04-01Not available in this setting$352.14RVU14B
2014-01-01Not available in this setting$352.14RVU14A
2013-10-01Not available in this setting$343.81RVU13D
2013-07-01Not available in this setting$343.81RVU13C
2013-04-01Not available in this setting$343.81RVU13B
2013-01-01Not available in this setting$343.81RVU13AR

Price 61107 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

61107 billing questions

How does 61107 differ from 61105?

61107 describes twist-drill access with placement of a ventricular drainage catheter. Use 61105 when the documented procedure is for subdural drainage rather than implantation of a ventricular catheter.

How does 61107 differ from 61108?

61107 is for ventricular catheter placement through twist-drill access. 61108 describes twist-drill access for evacuation or drainage of a subdural hematoma.

Does 61107 include the catheter placement?

Yes. The service includes the twist-drill access and placement of the ventricular drainage catheter; the operative note should support both.

Can modifier 50 be used for bilateral placement?

No. CMS identifies bilateral adjustment as inappropriate for this code, so modifier 50 is not appropriate.

Can an assistant or co-surgeon be reported?

Medicare does not pay an assistant at surgery for 61107. Co-surgeons and team surgery are not permitted.

What does the 0-day global period include?

Same-day preoperative and postoperative care is included in the procedure's 0-day global period.

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

Show the CMS file lines behind this rate
RVUs for 61107PPRRVU2026_Oct_nonQPP.csv, line 6,744 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 61107 pays in Connecticut?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets

Put 61107 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Build my fee sheet