CPT code 61105: Twist-drill puncture, hematoma drainage2026 Medicare rate & RVUs in Delaware

Reports a twist-drill puncture into the subdural or ventricular space to drain a hematoma, rather than implanting a catheter or using a burr hole.

CMS RVU26DEffective Oct 1, 2026One payment locality52 Medicare services in 2024

In Delaware, Medicare pays $488.75 for 61105 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$488.75Hospital or facility

Check a contract rate as a % of Medicare · 61105 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 61105 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Delaware
  2. What 61105 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 61105 covers

A neurosurgeon makes a small opening through the skull with a twist drill to puncture the subdural or ventricular space and drain a hematoma. The service is typically performed in a hospital or other facility when hematoma drainage is needed through this limited access approach. The operative note should identify the puncture site, the hematoma being drained, and the work performed; the access and purpose help distinguish this service from catheter implantation or burr-hole procedures.

Select the code when the documented procedure is a twist-drill puncture for hematoma drainage, not simply because a twist drill was used. The day-before preoperative visit and 90 days of related postoperative care are included in the 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% multiple-procedure reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment requires documented medical necessity; 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 Delaware compares for 61105

Across 109 of 109 payment localities, the facility rate for 61105 runs from $427.46 in Arkansas to $622.33 in Miami, FL. Delaware pays $488.75. The RVUs are the same everywhere; the geographic indexes change the dollars.

61105 in Delaware vs other payment areas
  1. Delaware · this page$488.75
  2. Los Angeles, CA · California$525.70+$36.95
  3. Washington, DC area · District of Columbia$560.21+$71.46
  4. Miami, FL · Florida$622.33+$133.58
  5. Chicago, IL · Illinois$597.27+$108.52
  6. Manhattan, NY · New York$593.27+$104.52
  7. Alaska · Alaska$569.60+$80.85

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

Every other payment area

61105 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$435.20
ArkansasArkansas—$427.46
ArizonaArizona—$479.97
Bakersfield, CACalifornia—$496.25
Chico, CACalifornia—$490.46
El Centro, CACalifornia—$490.83
Fresno, CACalifornia—$490.46
Hanford, CACalifornia—$490.46

61105 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
61105 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 61105 in every payment locality

How the 61105 rate is calculated

Each of 61105’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 · 61105

RVUs × geographic indexes × conversion factor

Office or facility?

Work5.31

5.31 RVUs× 1.000 GPCI

Practice expense7.38

7.38 RVUs× 1.000 GPCI

Malpractice2.23

2.23 RVUs× 1.000 GPCI

Adjusted RVUs

14.9200

Conversion factor

$33.4009

Medicare rate

$498.34

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

The exact Delaware inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,743

Code
61105
Physician work
5.31
Practice expense
7.38
Malpractice
2.23

GPCI2026.csv

40

Locality
Delaware
Physician work
1.005
Practice expense
0.988
Malpractice
0.899
Facility calculation for 61105 in Delaware
ComponentRVULocality factorAdjusted
Physician work5.31× 1.0055.3365
Practice expense7.38× 0.9887.2914
Malpractice2.23× 0.8992.0048
Total RVUs14.6328
Conversion factor× 33.4009

Facility rate, Delaware$488.75

Facility: (5.31 × 1.005 + 7.38 × 0.988 + 2.23 × 0.899) × $33.4009 = $488.75

Open 61105 in the RVU calculator

Payment rules and modifiers for 61105

61105 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 61105

Twist-drill puncture, hematoma drainage

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.11/0.76/0.13Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 61105

Twist-drill puncture, hematoma drainage

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

61105 without 51 · national facility

$498.34

Twist-drill puncture, hematoma drainage

61105-51 · Second procedure: 50%

$249.17

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

How 61105 has changed in Delaware

61105 · 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$488.75RVU26D
2026-07-01Not available in this setting$488.75RVU26C
2026-04-01Not available in this setting$488.75RVU26B
2026-01-01Not available in this setting$488.75RVU26A
2025-10-01Not available in this setting$462.59RVU25D
2025-07-01Not available in this setting$462.59RVU25C
2025-04-01Not available in this setting$462.59RVU25B
2025-01-01Not available in this setting$462.59RVU25A
2024-10-01Not available in this setting$471.74RVU24D
2024-07-01Not available in this setting$471.74RVU24C
2024-04-01Not available in this setting$471.74RVU24B
2024-03-09Not available in this setting$471.74RVU24AR
2024-01-01Not available in this setting$464.04RVU24A
2023-10-01Not available in this setting$476.62RVU23D
2023-07-01Not available in this setting$476.62RVU23C
2023-04-01Not available in this setting$476.62RVU23B
2023-01-01Not available in this setting$476.62RVU23A
2022-10-01Not available in this setting$478.38RVU22D
2022-07-01Not available in this setting$478.38RVU22C
2022-04-01Not available in this setting$478.38RVU22B
2022-01-01Not available in this setting$478.38RVU22A
2021-10-01Not available in this setting$477.62RVU21D
2021-07-01Not available in this setting$477.62RVU21C
2021-04-01Not available in this setting$477.62RVU21B
2021-01-01Not available in this setting$477.62RVU21A
2020-10-01Not available in this setting$485.42RVU20D
2020-07-01Not available in this setting$485.42RVU20C
2020-04-01Not available in this setting$485.42RVU20B
2020-01-01Not available in this setting$485.42RVU20A
2019-10-01Not available in this setting$501.93RVU19D
2019-07-01Not available in this setting$501.93RVU19C
2019-04-01Not available in this setting$501.93RVU19B
2019-01-01Not available in this setting$501.93RVU19A
2018-10-01Not available in this setting$502.77RVU18D
2018-07-01Not available in this setting$502.77RVU18C
2018-04-01Not available in this setting$502.77RVU18B
2018-01-01Not available in this setting$502.77RVU18AR1
2017-10-01Not available in this setting$477.82RVU17D
2017-07-01Not available in this setting$477.82RVU17C
2017-04-01Not available in this setting$477.82RVU17B
2017-01-01Not available in this setting$477.82RVU17A
2016-10-01Not available in this setting$492.36RVU16D
2016-07-01Not available in this setting$492.36RVU16C
2016-04-01Not available in this setting$492.36RVU16B
2016-01-01Not available in this setting$492.36RVU16A
2015-10-01Not available in this setting$508.20RVU15D
2015-07-01Not available in this setting$508.20RVU15C
2015-04-01Not available in this setting$505.67RVU15B
2015-01-01Not available in this setting$505.67RVU15A
2014-10-01Not available in this setting$475.21RVU14D
2014-07-01Not available in this setting$475.21RVU14C
2014-04-01Not available in this setting$475.21RVU14B
2014-01-01Not available in this setting$475.21RVU14A
2013-10-01Not available in this setting$464.91RVU13D
2013-07-01Not available in this setting$464.91RVU13C
2013-04-01Not available in this setting$464.91RVU13B
2013-01-01Not available in this setting$464.91RVU13AR

Price 61105 for an earlier date of service

Where the Delaware rate applies

Delaware is a Medicare payment area, not a city. Our Census mapping connects it to 79 cities and communities in Delaware. Some span more than one payment area; confirm with the service ZIP.

  • Arden
  • Ardencroft
  • Ardentown
  • Bear
  • Bellefonte
  • Bethany Beach
  • Bethel
  • Blades

Browse all communities in Delaware

61105 billing questions

How does this differ from 61108?

61105 describes a subdural or ventricular puncture for hematoma drainage. 61108 is specific to twist-drill evacuation and/or drainage of a subdural hematoma; use the code matching the documented procedure.

When would 61107 be reported instead?

61107 describes twist-drill access to implant a ventricular catheter or pressure-recording device. This code is for a puncture performed to drain a hematoma.

Does the global period include postoperative care?

Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

Can modifier 50 be appended for bilateral work?

No. CMS identifies bilateral adjustment as inappropriate for this code.

When is an assistant at surgery payable?

Assistant-at-surgery payment is allowed only when documentation supports medical necessity. Co-surgeons and team surgery are not permitted.

How are other procedures in the same session paid?

The highest-valued procedure is paid in full, and other procedures in the same session are subject to the standard multiple-procedure reduction.

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 61105PPRRVU2026_Oct_nonQPP.csv, line 6,743 (RVU26D)
Geographic factors for DelawareGPCI2026.csv, line 40 (RVU26D)

Open CMS sourceHow we calculate rates

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